Provided is an armed suture spooling device that facilitates a spooling operation with respect to a spool tray and allows for easy adjustment of the suture end position. A spool tray 10 for housing an armed suture, which is a suture with a suture needle attached thereto, comprises: a container portion 20 having a bottom surface 21 and a side wall 25; and a sheet-shaped lid portion 30 that fits inside the side wall. A spooling device comprises an upper surface element 50, a lower surface element 60, a circling element 70, and connecting posts 80. The upper surface element and the lower surface element have a planar shape identical to that of the spool tray. The upper surface element includes an upper surface rotational portion 51 rotatable around an axis perpendicular to the lid portion. The lower surface element includes a lower surface rotational portion 61 rotatable around the same axis as that of the upper surface rotational portion. The circling element includes a claw portion 76 which is inserted through a gap between the lid portion and the side wall of the container portion into the container portion. The claw portion includes a thread-passing portion 77 at the tip-end thereof through which the suture is passed. The spool tray is sandwiched between the upper surface element from the upper surface side of the lid portion, and the lower surface element from the lower surface side of the bottom surface of the container portion. The connecting posts extend through the lid portion and the bottom surface of the container portion, with the ends of the connecting posts being connectable to post-insertion portions 55, 65 respectively provided in the upper surface element and the lower surface element. In a state in which the upper surface rotational portion and the lower surface rotational portion are pressed, the spool tray, the upper surface element, and the lower surface element can be integrally rotated, whereby the suture that has passed through the thread-passing portion can be wound inside the spool tray.
A61B 17/06 - AiguillesSupports ou empaquetages pour aiguilles ou matériaux de suture
A61B 17/04 - Instruments, dispositifs ou procédés chirurgicaux pour refermer les plaies ou les maintenir ferméesAccessoires utilisés en liaison avec ces opérations pour la suture des plaiesSupports ou emballages pour aiguilles ou matériaux de suture
05 - Produits pharmaceutiques, vétérinaires et hygièniques
10 - Appareils et instruments médicaux
Produits et services
Pharmaceutical preparations; medicated dentifrices; medicines for veterinary purposes; dental wax; dental amalgams; teeth filling material; dental abrasives; dental lacquer; dental fillings; medical preparations for dental purposes; dental materials, namely, dental composites, dental cements, dental resins, dental bonding materials, dental etching materials, dental restoration compounds, dental composite materials, dental resin cements, cements for dental prostheses, dental cement for fillings, dental impression materials, materials for dental fillings; bleaching preparations for dental and dental technology purposes, in particular bleaching gel. Acupuncture needles; apparatus for use in medical analysis; arterial blood pressure measuring apparatus; apparatus for artificial respiration; artificial skin for surgical purposes; artificial teeth; sets of artificial teeth; blood testing apparatus; appliances for washing body cavities; dental burs; cannulae; cases, fitted for medical instruments; cases, fitted for use by surgeons and doctors; castrating pincers; catgut; catheters; obstetric apparatus for cattle; clips (surgical); corn knives; cutlery(surgical); defibrillators; dental apparatus; dental apparatus, electric; dentures; diagnostic apparatus for medical purposes; dialyzers; drainage tubes for medical purposes; electric acupuncture instruments; electrocardiographs; electrodes for medical use; enema apparatus for medical purposes; fleams; forceps; galvanic belts for medical purposes; galvanic therapeutic appliances; gastroscopes; heart pacemakers; heating cushions (pads),electric, for medical purposes; hematimeters; hot air therapeutic apparatus; hot air vibrators for medical purposes; hypodermic syringes; inhalers; injectors for medical purposes; instrument cases for use by surgeons and doctors; artificial jaws; knives for surgical purposes; lancets; lasers for medical purposes; lenses (intraocular prostheses) for surgical implantation; medical apparatus and instruments; medical guidewires; Spoons for administering medicine; mirrors for dentists; mirrors for surgeons; needles for medical purposes; obstetric apparatus; ophthalmometers; opthalmoscopes; orthodontic appliances; orthopaedic articles; pins for artificial teeth; saws for surgical purposes; scalpels; scissors for surgery; tongue scrapers; surgical apparatus and instruments; surgical implants (artificial materials); suture materials; suture needles; syringes for injections; syringes for medical purposes; thread (surgical); traction apparatus for medical purposes; trocars; armchairs for medical or dental purposes; brushes for cleaning body cavities; clothing especially for operating rooms; apparatus for the treatment of deafness; dentists' armchairs; gloves for medical purposes; operating tables; urological apparatus and instruments; veterinary apparatus and instruments; dental files; dental prosthetics.
[Problem] To increase the flexibility, cutting ability, and/or fracture resistance of a dental file.
[Problem] To increase the flexibility, cutting ability, and/or fracture resistance of a dental file.
[Solution] A cross-sectional shape of a dental file 100 includes an arc-shaped portion 111, and first to third linear portions 112 to 114 that are continuous sequentially from the arc-shaped portion 111. The diameter of a virtual circle 101 including the arc-shaped portion 111 is configured to decrease from a proximal end portion toward a distal end portion. A connection point 122 between the first and second linear portions 112 and 113, and a connection point 123 between the second and third linear portions 113 and 114 are located inside the virtual circle 101. An angle A11 that a diameter passing through a connection point 121 forms with the first linear portion 112 is set in such a manner as to increase from the proximal end portion toward the distal end portion.
Provided is a medical suture needle configured so as to reduce the risk of bending and cracks occurring in a tip part in which a point is formed. The medical suture needle includes a cutting blade section (10) and a body section (20) that is continuous with the cutting blade section. The cutting blade section comprises one bottom surface (11) and two inclined surfaces (12) and includes a point (13) at which the one bottom surface and the two inclined surfaces meet, a cutting blade (14) formed so as to be continuous from the point and such that the bottom surface and the inclined surfaces meet, and a ridge (15) formed so as to be continuous from the point and such that the two inclined surfaces meet. The thickness of the cutting blade section decreases from the body section toward the point. The two inclined surfaces include grooves (18) that have a curved surface shape, that each have a preset size, and that are formed along the ridge starting from the position of the cutting blade so as to be separated from the point by a predetermined distance. The lower edges (18c) of the grooves separate from the cutting blade toward the ridge side as the grooves approach the body section side in the end sections of said grooves on the body section side.
An object of the present invention is to provide a method for producing a black-colored medical device being safe for living bodies with a shortened time for applying a pulse potential. The method for producing the black-colored medical device includes a step S1 of applying a square wave pulse potential to a stainless-steel medical device immersed in an electrolytic aqueous solution as one electrode for 40 to 90 minutes to form a colored passivation film on a surface of the medical device; and a step S3 of applying silicone to the medical device after applying the pulse potential. The method may include a step of curing a part of the medical device after the step of applying the pulse potential and before the step of applying silicone.
A dental file includes a working portion having a spiral shape, wherein a cross section perpendicular to a longitudinal direction of the working portion has a trapezoidal shape including an upper bottom, a lower bottom, and first and second oblique sides, vertexes at both ends of the lower bottom are located on an imaginary circle having a center at an axis in the longitudinal direction of the working portion, vertexes at both ends of the upper bottom are located inside the imaginary circle, and the imaginary circle has a diameter decreasing from a base end portion toward a leading end portion of the working portion.
Provided is an ophthalmic surgical instrument which can prevent curving of a pipe during a surgical procedure and can pull out a reinforcement sleeve by a required length such that the reinforcement sleeve covers the pipe. An ophthalmic surgical instrument (10) working in an eyeball includes a body portion (15) having a through-hole, a reinforcement sleeve (13) contacting an inner surface of the through-hole of the body portion (15), a pipe (12) passing through the inside of the reinforcement sleeve (13) and having a working portion (11) protruding from a tip end, and a movement member (17) connected to the pipe (12) and sliding in an axial direction of the ophthalmic surgical instrument to slide the pipe (12). A first slide mechanism allowing the reinforcement sleeve (13) to slide in the axial direction of the ophthalmic surgical instrument and a second slide mechanism allowing the pipe (12) to slide in the axial direction of the vitreous forceps are provided. Any one of the first and second slide mechanisms is an independent slide mechanism not influenced by the other slide mechanism.
The purpose of the present invention is to enable safer treatment and to reduce variation of treatment effects in root canal treatment using a dental handpiece, regardless of operator's skill level. The present invention is a dental handpiece system including a handpiece and a rod-shaped cutting tool, in which the handpiece includes a handpiece body and a head part provided at a tip of the handpiece body, the rod-shaped cutting tool is rotatably attached to the head part of the handpiece and is used to cut a root canal, and the dental handpiece system detects at least one selected from the group consisting of a force applied to the handpiece from an external matter in an axial direction of the cutting tool and an acceleration of the handpiece in the axial direction of the cutting tool when cutting the root canal.
A61C 5/44 - Moyens pour contrôler la profondeur de travail, p. ex. supports ou boîtes avec jauges de profondeur, butées de positionnement ou limes munies de poignées montées de manière ajustable
A61C 5/42 - Limes pour canaux radiculairesPoignées ou moyens de guidage pour celles-ci
A medical knife has a flat projection shape of a cutting part formed in an approximate rhomboid shape including a front end part, a widest part with the largest width, and a side surface part formed between the front end part and the widest part. A front side bevel constituting an edge on the front side and a back side bevel constituting an edge on the back side are individually formed, having as a boundary a virtual surface including an edge formed along the periphery of the cutting part. A ratio of the angle β between the virtual surface and the back side bevel to the angle α between the virtual surface and the front side bevel at the front end part is greater than the ratio of the angle θ between the virtual surface and the back side bevel to the angle α at the side surface part.
05 - Produits pharmaceutiques, vétérinaires et hygièniques
Produits et services
(1) Dental abrasives; dental amalgams; dental anaesthetics; dental ceramics for the production of bridges; dental ceramics for the production of crowns; dental composite materials; dental fillings; dental implant materials; dental impression materials; dental lacquer; dental plasters; dental restoration compounds; dental swabs; dental wax; material for filling teeth; medicated mouth rinse; medicated toothpaste; pharmaceutical preparations for the relief of pain; pharmaceutical preparations for the treatment of dental and oral diseases; veneer for prosthetic dentistry; veterinary pharmaceutical preparations for periodontal diseases; veterinary pharmaceutical preparations for the prevention and treatment of iron deficiency and anemia in animals; veterinary vaccines;
Provided is a dental file exhibiting high performance and having high flexibility and excellent root canal followability. A dental file (10) of the present invention includes a working portion (11) in a spiral shape. An outer edge of the sectional shape of the working portion (11) at any position includes a single arc (40) and three or more lines (41, 42, 43). One end of the arc (40) forms a first cutting blade. The three or more lines (41, 42, 43) are positioned inside a virtual circle (50) partially including the arc (40). The length of the arc (40) may be equal to or greater than 1/12 and equal to or less than ⅓ of the circumferential length of the virtual circle (50), or a second cutting blade (16) may be further provided inside the virtual circle (50).
Provided is a dental file with excellent flexibility, cutting performance, and fracture resistance. The dental file (10) of the present invention has a spiral working portion (11) of which cross sections become smaller toward a tip end. At least one of shapes of the cross sections of the working portion (11) is a substantially rectangular shape formed of a single arc (40) and three lines (41, 42, 43), Two points of four points at four corners of the substantially rectangular shape are arranged on a virtual circle (50), which includes the arc (40) as part thereof. The other two points are arranged inside the virtual circle (50). The center position of the virtual circle (50) is inside the substantially rectangular shape. A shortest one of lengths of perpendicular lines each extending from the center position of the virtual circle (50) including the arc (40) as part thereof to the three lines (41, 42, 43) is equal to or greater than 45% and equal to or less than 65% of the radius of the virtual circle (50).
The purpose of the present invention is to provide a training device for ophthalmic surgery so as to make it possible to readily practice inner limiting membrane peeling by using a simulated eye including a Japanese quail eggshell. This training device 1 for ophthalmic surgery includes a base 10 with a hollow portion 11 and a soft simulated sclera member 20 shaped like a part of sphere, wherein the hollow portion 11 is tapered from an upper side to a lower side and houses, upon use, a simulated eye 50 including an eggshell; the simulated sclera member 20 is provided on an upper side of the base 10; and a surgical instrument can contact, through the simulated sclera member 20, an inner surface of the simulated eye 50.
[Problem] To increase the flexibility, cutting ability, and/or breakage resistance of a dental file. [Solution] A dental file 100 is constituted from a section 111 having an arc-shaped cross-sectional shape and first through third linear sections 112-114 continuing in sequence from the arc-shaped section 111, the diameter of a virtual circle 101 that includes the arc-shaped section 111 being reduced progressively from a proximal-end part to a distal-end part, a connection point 122 of the first and second linear sections 112, 113 and a connection point 123 of the second and third linear sections 113, 114 being positioned farther inside than the virtual circle 101, and the angle A11 formed by the first linear section 112 and the diameter through the connection point 121 being set so as to increase progressively from the proximal-end part to the distal-end part.
A cannula holder capable of securing a cannula to the holder at the time of piercing work, and easily removing the cannula from the holder using tweezers or the like. The cannula holder, to which a piercing needle for piercing an eyeball and a cannula are attached when attaching the cannula used in ophthalmic operations to the eyeball, includes claw portions that are formed on a front end of the cannula holder and which press sides of the cannula either at positions where said claw portions face each other or from multiple directions. A depression may be provided in a side of the front end of the cannula holder, allowing visibility of a part of a back end of the cannula from the depression.
Ophthalmic forceps include: a tubular body; a pair of neck portions; a pair of slit formation portions provided on a tip end side of the neck portions; a pair of gripping portions provided on a tip end side of the slit formation portions; and substantially S-shaped portions formed at portions extending from the neck portions to the slit formation portions. When the tubular body slides to house an entirety of the neck portions in an inner cavity of the tubular body, gripping surfaces of the gripping portions are in surface contact with each other, and a slit is formed between the pair of slit formation portions.
The present invention prevents misrecognition and recognition failure of information relating to a dental treatment tool. A dental treatment tool (A) comprises a rod-like holding part (1) and an operation part (12) that is provided on a distal end of the holding part (1). The holding part (1) has, on a proximal end portion, a D-cut plane (3) formed by cutting a circumferential portion of the outer circumferential surface. A code (10) that represents information relating to the dental treatment tool (A) is attached to at least one of the D-cut plane (3) of the holding part (1), an outer circumferential surface portion (9) of the outer circumferential surface of the holding part (1) that is substantially in the same circumferential position as the D-cut plane (3), and a proximal end surface (4) of the holding part (1).
Provided is a medical suture needle configured so as to reduce the risk of bending and cracks occurring in a tip part in which a point is formed. The medical suture needle includes a cutting blade section (10) and a body section (20) that is continuous with the cutting blade section. The cutting blade section comprises one bottom surface (11) and two inclined surfaces (12) and includes a point (13) at which the one bottom surface and the two inclined surfaces meet, a cutting blade (14) formed so as to be continuous from the point and such that the bottom surface and the inclined surfaces meet, and a ridge (15) formed so as to be continuous from the point and such that the two inclined surfaces meet. The thickness of the cutting blade section decreases from the body section toward the point. The two inclined surfaces include grooves (18) that have a curved surface shape, that each have a preset size, and that are formed along the ridge starting from the position of the cutting blade so as to be separated from the point by a predetermined distance. The lower edges (18c) of the grooves separate from the cutting blade toward the ridge side as the grooves approach the body section side in the end sections of said grooves on the body section side.
The present invention makes it possible to reliably follow the leading end portion of a root canal and prevent biting into a root canal wall. Provided is a dental root canal treatment instrument comprising a shaft part (A), a transition part (D) which is contiguous with the shaft part, and an operation part (B) which is contiguous with the transition part. The operation part is formed in a taper shape which narrows from the transition part to the leading end of said operation part. The transverse cross-section of the operation part which is furthest toward the shaft part side is a parallelogram comprising a pair of opposing long sides (1a), a pair of opposing short sides (2a), acute angle edges (5a) formed on a long diagonal (3a), and obtuse angle edges (6a) formed on a short diagonal (4a). The transverse cross-section IIb of the operation part which is in proximity to the leading end has a shape comprising a pair of sides (1b) which are contiguous from the long sides (1a), a pair of sides (2b) which are contiguous from the short sides (2a), lands (7) which are contiguous from the acute angle edges on a long diagonal (3b) and the length of which increases from the shaft part side toward the proximity to the leading end, and obtuse angle edges (6b) which are contiguous with the obtuse angle edges on a short diagonal (4b).
The present invention is configured so that differing flexibility can be exhibited in a desired range from the distal end of an operating part to a shaft part side. The present invention has a shaft part (A) and an operating part (B), the operating part being formed in a tapered shape that narrows from the shaft part to the distal end of the operating part. A cross section (Ba) of the operating part farthest toward the shaft part is a parallelogram having a pair of opposing long sides (1a), a pair of opposing short sides (2a), acute-angled edges (5a) formed on a long diagonal (3a), and obtuse-angled edges (5a) formed on a short diagonal (4a). A cross section (IIBb) near the distal end of the operating part is a parallelogram having sides (1b) continuous from the pair of long sides (1a), sides (2b) continuous from the pair of short sides (2a), acute-angled edges (5b) which are formed on a long diagonal (3b) and are continuous from the acute-angled edges (5a), and obtuse-angled edges (6b) which are formed on a short diagonal (4b) and are continuous from the obtuse-angled edges (6a). The angle (β) formed by a side (1b) constituting the cross section (IIBb) and the long diagonal (3b) is larger than the angle (α) formed by a long side (1a) in a cross section (IIBa) and the long diagonal (3a).
Provided is a dental diamond bar that exhibits excellent grinding performance and superb handleability. This dental diamond bar (1) is equipped with a rod-like member (2) and a plurality of diamond abrasive grains (3) firmly fixed to a tip surface of the rod-like member (2). The abrasive grains (3) include a plurality of specific abrasive grains (8) that form a surface exhibiting a kurtosis Sku of at least 5 and/or an arithmetic average curvature Spc of at least 380 (1/mm) at the top of the grains. The abrasive grains (3) may also include a plurality of specifically-shaped abrasive grains (15) that have an aspect ratio of 1.4-2.0. The abrasive grains (3) may have a grain size distribution where the cumulative percentage of the cumulative number of abrasive grains having an aspect ratio of at least 1.4 with respect to the total number of abrasive grains is 50% or more. A plating layer (7) used for fixing the abrasive grains (3) may be configured to have a thickness substantially the same as the length of the specifically-shaped abrasive grains (15) in the short-side direction thereof.
Provided are ophthalmic tweezers with which it is possible to easily adjust the degree of grip force according to usage. Ophthalmic tweezers (10) are equipped with a tweezer portion (20) that has a tubular body (21), a pair of neck parts (22), and a pair of grippers (23) disposed at the leading end side of the neck parts (22), wherein: the tweezer portion (20) is structured such that the grippers (23) will close when the neck parts (22) are housed within an inner cavity of the tubular body (21) as a result of sliding movement of the tubular body (21); the neck parts (22) each have a first curved or bent section (22a) that is formed projecting to the central axis side of the tubular body (21) and a second curved or bent section (22b) that is formed recessed on the central axis side of the tubular body (21); and the first curved or bent section (22a) is disposed on the tubular body side, whereas the second curved or bent section (22b) is disposed on the gripper side.
An infusion pipe capable of achieving a flow rate higher or the same as that of a conventional product, and of easily joining to a cannula attached to an eyeball. The infusion pipe of the present invention is used in an ophthalmic operation with the infusion pipe joined to a cannula attached to an eyeball, and includes an insertion part to be inserted, at the time of joining to the cannula, inside a cannula piercing part, which is a part of the cannula for piercing the eyeball. A cross-section of the insertion part is an arc shape from which a part of a circle is cut out.
A61F 9/00 - Procédés ou dispositifs pour le traitement des yeuxDispositifs pour mettre en place des verres de contactDispositifs pour corriger le strabismeAppareils pour guider les aveuglesDispositifs protecteurs pour les yeux, portés sur le corps ou dans la main
Provided is an ophthalmic surgical instrument in which, during a surgical operation, it is possible to prevent a pipe from bending and further to draw forth a desired length of a reinforcement sleeve and to lay said sleeve over the pipe. This ophthalmic surgical instrument (10) used for an operation inside an eyeball has: a body (15) having a through-hole; a reinforcement sleeve (13) which is in contact with the inner surface of the through-hole in the body (15); a pipe (12) which is passed through the interior of the reinforcement sleeve (13) and which has, protruded from a distal end thereof, an operating part (11); and a moving member (17) which is connected to the pipe (12) and which is capable of sliding in the axial direction of the ophthalmic surgical instrument so as to cause the pipe (12) to slide, the ophthalmic surgical instrument being further provided with a first slide mechanism which allows the reinforcement sleeve (13) to slide in the axial direction of the ophthalmic surgical instrument and a second slide mechanism which allows the pipe (12) to slide in the axial direction of a forceps for the vitreous body, wherein the first and second slide mechanisms are independent of each other and unaffected by the other.
Acupuncture needles; apparatus for use in medical analysis; arterial blood pressure measuring apparatus; apparatus for artificial respiration; artificial skin for surgical purposes; artificial teeth; sets of artificial teeth; blood testing apparatus; appliances for washing body cavities; dental burs; cannulae; cases, fitted for medical instruments; cases, fitted for use by surgeons and doctors; castrating pincers; catgut; catheters; obstetric apparatus for cattle; clips (surgical); corn knives; cutlery (surgical); defibrillators; dental apparatus; dental apparatus, electric; dentures; diagnostic apparatus for medical purposes; dialyzers; Drainage tubes for medical purposes; Electric acupuncture instruments; electrocardiographs; electrodes for medical use; enema apparatus for medical purposes; fleams; forceps; galvanic belts for medical purposes; galvanic therapeutic appliances; gastroscopes; heart pacemakers; heating cushions (pads), electric, for medical purposes; hematimeters; hot air therapeutic apparatus; hot air vibrators for medical purposes; hypodermic syringes; inhalers; injectors for medical purposes; instrument cases for use by surgeons and doctors; artificial jaws; knives for surgical purposes; lancets; lasers for medical purposes; lenses (intraocular prostheses) for surgical implantation; medical apparatus and instruments; medical guidewires; spoons for administering medicines; mirrors for dentists; mirrors for surgeons; needles for medical purposes; obstetric apparatus; ophthalmometers; opthalmoscopes; orthodontic appliances; orthopaedic articles; pins for artificial teeth; saws for surgical purposes; scalpels; scissors for surgery; tongue scrapers; surgical apparatus and instruments; surgical implants (artificial materials); suture materials; suture needles; syringes for injections; syringes for medical purposes; thread (surgical); traction apparatus for medical purposes; trocars; armchairs for medical or dental purposes; brushes for cleaning body cavities; clothing especially for operating rooms; apparatus for the treatment of deafness; dentists' armchairs; gloves for medical purposes; operating tables; urological apparatus and instruments; veterinary apparatus and instruments.
Acupuncture needles; apparatus for use in medical analysis; arterial blood pressure measuring apparatus; apparatus for artificial respiration; artificial skin for surgical purposes; artificial teeth; sets of artificial teeth; blood testing apparatus; appliances for washing body cavities; dental burs; cannulae; cases, fitted for medical instruments; cases, fitted for use by surgeons and doctors; castrating pincers; catgut; catheters; obstetric apparatus for cattle; clips (surgical); corn knives; cutlery (surgical); defibrillators; dental apparatus; dental apparatus, electric; dentures; diagnostic apparatus for medical purposes; dialyzers; Drainage tubes for medical purposes; Electric acupuncture instruments; electrocardiographs; electrodes for medical use; enema apparatus for medical purposes; fleams; forceps; galvanic belts for medical purposes; galvanic therapeutic appliances; gastroscopes; heart pacemakers; heating cushions (pads), electric, for medical purposes; hematimeters; hot air therapeutic apparatus; hot air vibrators for medical purposes; Hypodermic syringes; Inhalers; injectors for medical purposes; instrument cases for use by surgeons and doctors; artificial jaws; knives for surgical purposes; lancets; lasers for medical purposes; lenses (intraocular prostheses) for surgical implantation; medical apparatus and instruments; Medical guidewires; Spoons for administering medicines; mirrors for dentists; mirrors for surgeons; needles for medical purposes; obstetric apparatus; ophthalmometers; opthalmoscopes; orthodontic appliances; orthopaedic articles; pins for artificial teeth; saws for surgical purposes; scalpels; scissors for surgery; tongue scrapers; surgical apparatus and instruments; surgical implants (artificial materials); suture materials; suture needles; syringes for injections; syringes for medical purposes; thread (surgical); traction apparatus for medical purposes; trocars; armchairs for medical or dental purposes; brushes for cleaning body cavities; clothing especially for operating rooms; apparatus for the treatment of deafness; dentists' armchairs; gloves for medical purposes; operating tables; urological apparatus and instruments; veterinary apparatus and instruments.
The purpose of the present invention is to provide a dental file which is highly flexible and capably conforms to a root canal shape. The dental file (10) according to the present invention comprises a helical processing part (11), the processing part (11) has, at every position, a cross section defined by outer edges of one arc (40) and three or more lines (41, 42, 43), one end of the arc (40) serves as a first cutting edge, and the three or more lines (41, 42, 43) are positioned inside the imaginary circle (50), a part of which is the arc (40). The length of the arc (40) may be 1/12 to 1/3 the length of the circumference of the imaginary circle (50), or a second cutting edge (16) may be provided inside the imaginary circle (50).
Provided is a bar for forming occlusal surfaces with which occlusal surfaces can be easily formed in identical shapes during the formation of an anchor tooth. This bar (10) which is for forming occlusal surfaces and used in the formation of an anchor tooth has: a shank (15) for connecting to a rotating mechanism; and a work unit (11) provided on one end of the shank (15). The work unit (11) has the shape of a rotary body rotating around the shank (15) and comprises, in order from the tip end side, a head section (11a), an inclined surface forming section (11b), and a corner forming section (11c). The head section (11a) has substantially a disk shape in which the central position of a side surface is farthest from the rotation axis. The inclined surface forming section (11b) has a tapered shape having a diameter that gradually decreases at a constant rate from the head section (11a) toward the corner forming section (11c). The corner forming section (11c) has a curved surface shape that is smoothly connected to the inclined surface forming section (11b) and has a diameter that increases toward the shank (15). Abrasive grains are attached to the surfaces of each of the inclined surface forming section (11b) and the corner forming section (11c), as well as to the surface of the heat section (11a) from the side surface central position to the shank side.
Provided is a bar for forming a central fovea with which the vicinity of the central fovea can be accurately polished to the necessary depth when forming an anchor tooth. This bar (10) which is for forming a central fovea and is used in the formation of an anchor tooth has: a shank (15) for connecting to a rotation mechanism; a work unit (11) provided on one end of the shank (15) and having abrasive grains (20) attached to the surface thereof; and a stopper unit (12) on the shank side of the working unit (11). The working unit (11) and the stopper unit (12) have the shapes of rotary bodies that rotate around the shank (15). The working unit (11) has, on the tip side, a tip protrusion section (11a) having a portion of a spherical surface, and has a substantially cylindrical trunk section (11b) on the shank side, wherein the tip protrusion section (11a) and the trunk section (11b) are connected to each other along a smooth curved surface. The stopper unit (12) is substantially disk-shaped, and the outermost edge thereof is further from the rotation axis than the trunk section (11b).
Disclosed is a cannula that can decrease the rate of increase in resistance that is generated when penetrating an incision formed in tissue. The cylindrical cannula (1) configures a trocar (B) used during surgery; an incision member (C) can be inserted and removed therewithin; one side of the end portion of the cylinder forms a protruding slanted cut end (2); and a tapered surface (3) having an uneven width and a width that is wider on the protruding side (the side of point 2a) of the slanted cut end than the non-protruding side (the side of point 2b) is formed on the outer periphery of the slanted cut end (2).
Provided is a dental file having excellent flexibility, filing properties and fracture resistance. This dental file (10) has a spiral operation unit (11) having a cross section which becomes smaller toward the distal end. A cross section taken at any part of the operation unit (11) has a substantially rectangular shape formed by one arc (40) and three segments (41, 42, 43). Among the four corners of the substantially rectangular shape, two are positioned on a virtual circle (50) including the arc (40) as a part thereof, and the other two are positioned inside the virtual circle (50). The center of the virtual circle (50) is positioned inside the substantially rectangular shape. The shortest perpendicular line among the perpendicular lines from the center of the virtual circle (50) including the arc (40) as a part thereof to the three segments (41, 42, 43) has a length of 45% to 65% of the radius of the virtual circle (50).
A nose knife with good usability and little interference with tools such as an endoscope in nasal cavity surgery is provided, and includes a handle, a shank, and a blade. The shank includes a straight part connected straight to the handle along the same axis, and a curved part integrally connected to the front end of the straight part. The blade is provided at the front end of the curved part. A tip of the blade is angled 65 degrees to 75 degrees inclusive relative to the axis of the straight part.
A61B 17/24 - Instruments, dispositifs ou procédés chirurgicaux pour la cavité buccale, le larynx, les conduits des bronches ou le nezGrattoirs pour la langue
A61B 17/3211 - Scalpels chirurgicaux ou bistourisLeurs accessoires
Provided is a nasal knife whereby excellent visibility is obtained and there is minimal resistance during piercing or cutting in nasal cavity surgery, and the feel of contact with cartilage is easily perceived when a mucous membrane is pierced by the distal end of a blade part of the nasal knife. This nasal knife (10) has: a flat-plate-shaped blade part (12) provided with first cutting blades (12a, 12a) comprising two straight line shapes, and a second cutting blade (12b) for connecting the distal ends of the first cutting blades (12a, 12a); the width between the first cutting blades decreasing progressively toward the second cutting blade, the angle between the first cutting blades (12a, 12a) being 15° to 60°, and the angle of a blade edge cross section of any of the first cutting blades (12a, 12a) and the second cutting blade (12b) being 11° to 17°.
A61B 17/3211 - Scalpels chirurgicaux ou bistourisLeurs accessoires
A61B 17/24 - Instruments, dispositifs ou procédés chirurgicaux pour la cavité buccale, le larynx, les conduits des bronches ou le nezGrattoirs pour la langue
Provided is a two-dimensional code display medium which displays a distinctive two-dimensional code that is readily noticeable by itself, and that is designed such that it is easy for a person to visually determine whether or not the two-dimensional code is the person's desired code. The two-dimensional code display medium according to the present invention is characterized by being provided with an information display surface having a display region for displaying a two-dimensional code, wherein the information display surface is square, and one side of the two-dimensional code and one side of the information display surface form an oblique angle therebetween. Further, the oblique angle is preferably 45 degrees.
G06K 19/06 - Supports d'enregistrement pour utilisation avec des machines et avec au moins une partie prévue pour supporter des marques numériques caractérisés par le genre de marque numérique, p. ex. forme, nature, code
Provided is an infusion pipe which can obtain a flow rate higher than that of a conventional product and can easily join with a cannula fitted to an eyeball. This infusion pipe (10) is to be used joined to a cannula (20) fitted to an eyeball in ophthalmological surgery, the infusion pipe (10) has an insertion portion (11) to be inserted during joining with the cannula into the inside of a cannula penetration portion (21a), which is a portion of the cannula (20) that penetrates the eyeball, and the cross-section of the insertion portion is an arc shape with a portion of the circle cut out.
Provided is a backflush needle capable of retaining the shape of a soft member of a tip of the backflush needle as the backflush needle is inserted into a cannula. A backflush needle (10) according to the present invention is a backflush needle (10) that is inserted into a cannula attached to an eyeball in eye surgery, the backflush needle (10) including a tubular needle main body (11) passing through the cannula, a tubular soft member (20) connected to a tip of the needle main body (11), and a rod-shaped core member (21) passing through respective tubular hollows of the needle main body (11) and the soft member (20), wherein the core member (21) is movable in an axial direction and capable of having a tip thereof protrude from the soft member (20) or retract to a position away from the needle main body (11).
Provided is a cannula holder with which a cannula can be secured in the holder when a piercing operation is being performed, and with which it is easy to remove the cannula using forceps or the like when the cannula is to be removed from the holder. A cannula holder according to the present invention is a cannula holder (10) to which a piercing needle (30), which pierces an eyeball, and a cannula (20) used in ophthalmic surgery are attached for use when the cannula is to be attached to the eyeball. The cannula holder (10) has, at a distal end thereof, claw portions (11) which press a side surface of the cannula (20) from opposing locations or from a plurality of directions. The cannula holder (10) has a recessed portion (12) in a side portion of the distal end thereof, and part of a rear end surface of the cannula (20) is preferably visible from the recessed portion (12).
Method of producing a medical cutting tool and a medical cutting tool that will not rust and that is capable of stably demonstrating high strength. A working section formed by a cemented carbide or ceramic is brazed to the tip of a shank part formed by a round bar-shaped austenitic stainless steel, thereby constituting a cutting tool. The shank part includes a shank, a neck, and a joint to which the working section is brazed. At least part of the stainless steel near the joint of the neck and in the joint has a fiber-like structure. The structure of the stainless steel in the joint on the working section side has a granular structure.
B23K 31/02 - Procédés relevant de la présente sous-classe, spécialement adaptés à des objets ou des buts particuliers, mais non couverts par un seul des groupes principaux relatifs au brasage ou au soudage
A61C 3/02 - Instruments à forer ou couperInstruments agissant à la façon d'une décapeuse au jet de sable
A61B 17/16 - Instruments pour réaliser une ostéoclasieForets ou ciseaux pour osTrépans
A medical suture needle made of stainless steel includes a cutting blade component and a body part continuing to the cutting blade component. The cutting blade component, whose degree of thickness decreases from the body part to a sharp point, includes a first cutting blade part and a second cutting blade part continuing from the first cutting blade part. The first cutting blade part includes two first slanted surfaces formed sandwiching an apex and a first bottom surface sandwiched by the two first slanted surfaces. Cutting blades are formed at an edge constituting the apex and at edges where the first bottom surface and the two first slanted surfaces intersect. The second cutting blade part includes first slanted surfaces, second slanted surfaces having rims approximately parallel to the apex and formed on the respective first slanted surfaces, and a second bottom surface sandwiched by the second slanted surfaces.
A61F 9/007 - Procédés ou dispositifs pour la chirurgie de l'œil
A61F 9/00 - Procédés ou dispositifs pour le traitement des yeuxDispositifs pour mettre en place des verres de contactDispositifs pour corriger le strabismeAppareils pour guider les aveuglesDispositifs protecteurs pour les yeux, portés sur le corps ou dans la main
a) makes contact with a horizontal surface at a position deviating from a position defined by a line extending downward vertically from the center of gravity of the medical knife (10).
A61B 17/3211 - Scalpels chirurgicaux ou bistourisLeurs accessoires
A61B 17/00 - Instruments, dispositifs ou procédés chirurgicaux
A61B 90/00 - Instruments, outillage ou accessoires spécialement adaptés à la chirurgie ou au diagnostic non couverts par l'un des groupes , p. ex. pour le traitement de la luxation ou pour la protection de bords de blessures
A vitreous body cutter that allows wide movement of an opening position at the end part of a pipe even when the pipe is thin and that allows suction of vitreous bodies etc. in a wide range. The vitreous body cutter includes: a pipe having an opening on the side of an end part; a cutter, which slides along the inner surface of the pipe; a power output section, which is connected to the pipe and slides the cutter; and an outer case, through which the pipe passes, and which includes the power output section inside; and further includes a joint for connecting the outer case to a cannula attached to an eyeball. The protrusion length of the pipe from the outer case can be changed.
[Problem] To rationalize production steps for a medical stapler.
b) when the supported staple (3) is formed and regulates a curved section thereof. The chamfered corner section (12) is cured by plastic working and formed.
Provided is a nose knife that is easy to operate and results in less interference with equipment such as endoscopes during surgery of the nasal cavity. This nose knife (10) has a handle section (13), a shank section (11), and a blade section (12). The shank section (11) is composed of a straight section (11a) that is linked straight-on coaxially to the handle section (13), and a curved section (11b) that is integrally linked to a distal end of the straight section (11a). The blade section (12) is provided to a distal end of the curved section (11b). A blade edge (12b) direction of the blade section (12) is a direction that is at 65° to 75° with respect to the axial direction of the straight section (11a).
A61B 17/24 - Instruments, dispositifs ou procédés chirurgicaux pour la cavité buccale, le larynx, les conduits des bronches ou le nezGrattoirs pour la langue
The purpose of the present invention is to provide a knife for use in medical treatment, with which it is possible to form an incision which is strongly self-closing. Provided is a knife (A), in which a planar projection shape of a blade part (1) is formed in an approximately rhomboid shape, which comprises: a leading end part (3) which includes a pointed end (2) which is formed in a leading end portion and the vicinity of the pointed end (2); a maximum width part (4) which is the widest part; and lateral surface parts (5) which are formed between the leading end part (3) and the maximum width part (4). With a virtual plane (7a) as a boundary, said virtual plane (7a) including edges (7) which are formed along the outer circumference of the blade part (1), an obverse-side bevel (8) which configures the edges (7) is formed on the obverse side and a reverse-side bevel (9) which configures the edges (7) is formed on the reverse side. A ratio in the leading end part (3), of an angle β which is formed by the virtual plane (7a) and a rear-side bevel (9a) to an angle α which is formed by the virtual plane (7a) and the obverse-side bevel (8), is greater than a ratio in the lateral surface parts (5), of an angle θ which is formed by the virtual plane (7a) and a rear-side bevel to the angle α which is formed with the obverse-side bevel (8).
The goal is to provide a medical suture needle having, as the material, austenite stainless steel with a structure that is elongated in a fiber form while improving the hardness and flexural strength of the cutting portion. A medical suture needle is made of austenite stainless steel having a structure that is elongated in fiber form, and has a cutting portion and a body portion with a triangular cross-sectional shape that is continuous with said cutting portion. The cutting portion has cutting edges, at least one surface of which is formed by a pressed surface, and which are formed by the intersection of said pressed surface with two sharpened surfaces, and a cutting edge that is formed by the intersection of the two sharpened surfaces. The tip where the various cutting edges and converge is positioned in the center of the pressed surface. Moreover, the cutting edges formed by the intersection of the above pressed surface with the two sharpened surfaces are longer than the cutting edge that is formed by the intersection of the two sharpened surfaces.
B21G 1/08 - Fabrication d'aiguilles pour effectuer des opérations déterminées d'aiguilles creuses ou avec une extrémité creuse, p. ex. d'aiguilles hypodermiques, d'aiguilles à larder
A61B 17/06 - AiguillesSupports ou empaquetages pour aiguilles ou matériaux de suture
B24B 19/16 - Machines ou dispositifs conçus spécialement pour une opération particulière de meulage non couverte par d'autres groupes principaux pour meuler des pièces pointues, p. ex. aiguilles, plumes, hameçons, pinces ou aiguilles de lecture d'enregistrement
B21G 1/00 - Fabrication d'aiguilles pour effectuer des opérations déterminées
Strength of a front end part having a sharp point of a medical suture needle is maintained and resistance when piercing tissue is reduced. There is provided a medical suture needle having a triangular cross section made of austenitic stainless steel having a fibrously extending structure, having two first slanted surfaces (11) ground and sandwiching a ridge (20), and a bottom surface (13) sandwiched between the two first slanted surfaces and ground. The ridge is formed comprising a first cutting blade (1) that is formed by the two first slanted surfaces (11) intersecting, a ridge part (20) that is formed on a body part side of the first cutting blade without the first slanted surfaces (11) intersecting, and a second cutting blade (2) that is formed by two second slanted surfaces (12) ground, intersecting and sandwiching the first cutting blade (1) on a front end side of the first cutting blade (1). Length L2 of the first cutting blade is within a range of 3 to 20 times length L1 of the second cutting blade (2), and a front end (3) of the second cutting blade (2) is positioned deviating from the material center.
Provided is a cannula capable of inhibiting vitreous humor, etc., from leaking from a slit into which a surgical instrument is inserted. The cannula (10), which is used by being pierced into an eyeball in ophthalmic surgery, is provided with: a pipe (11); a cylindrical base (12) which is fitted to the outer periphery of the pipe (11) at the base end of the pipe (11); a resin cap (13) which is formed of a lid surface (13c) serving as a lid on the base end surface of the pipe (11), and a lateral surface (13a) covering the cylinder lateral surface of the base (12); and a slit (13d) which penetrates through the center of the lid surface (13c), wherein at a position where the cylinder lateral surface of the base (12) comes into contact with the lateral surface (13a) of the cap, the outer diameter of the cylinder lateral surface of the base (12) is greater than the inner diameter of the lateral surface (13a) of the cap.
The strength of a tip portion where a sharp point is formed is improved and the piercing resistance is reduced while minimizing the piercing mark after the needle is passed through a tissue. The medical suture needle comprises stainless steel and has a cutting blade component part (10) and a body part (20) continuous with the cutting blade component part; the cutting blade component part is formed in a shape such that the thickness thereof decreases from the body part toward a point (14), and has a first cutting blade part (11) and a second cutting blade part (12) continuous with the first cutting blade part; the first cutting blade part has two first inclined surfaces (11b) with a top part (11a) formed so as to be interposed therebetween, and has one first bottom surface (11c) interposed between the first inclined surfaces, a cutting blade (11d) being formed on an edge that constitutes the top part and on an edge where the first bottom surface and first inclined surfaces intersect with each other; the second cutting blade part has first inclined surfaces, second inclined surfaces (12a) that have top-side edges (12b) formed respectively on the first inclined surfaces and oriented substantially parallel to the top part, and one second bottom surface (12c) interposed between the second inclined surfaces, the angle formed by the second inclined surfaces (12a) with the interposed the top part being less than than the angle formed by the first inclined surfaces; and a cutting blade (12d) is formed on the edge that constitutes the top part and on an edge where the second bottom surface and second inclined surfaces intersect with each other.
Provided is a dental root canal cutting tool which is attached to a dental handpiece when in use, and with which cut material produced as a result of cutting inside a root canal can be smoothly ejected. The dental root canal cutting tool (10) comprises: a work portion (11) comprising a spiral cutting blade and having a shape tapering toward the tip; a shaft (12) continuous with a rear end of the work portion (11) and having the same diameter as the circumscribed circle of a rear end cross section of the work portion; and a grip portion (13) continuous with the rear end of the shaft (12) and connected to the dental handpiece, wherein a spiral groove (12a) which is continuous from the cutting blade of the work portion is formed in the shaft (12) .
A61C 5/40 - Instruments pour le traitement chirurgical des racines ou des nerfs dentairesAiguilles pour retirer le nerfProcédés ou instruments pour le traitement des racines
Provided is a piercing needle-equipped cannula which is fitted with a piercing needle in advance and which prevents a deformation of a slit part by the piercing needle from remaining after removal of the piercing needle. This piercing needle-equipped cannula (100) has: a cannula (10) used to pierce an eyeball in eye surgery; a cap (13) made of a resin, having a slit (13a), and provided in the cannula (10); and a piercing needle (15) attached to the cannula (10). The piercing needle (15) includes a needle body portion (15c) on the tip side, a base portion (15d) on the base end side, and a slit penetrating portion (15s) that penetrates the slit (13a) while joining the needle body portion (15c) and the base portion (15d) to each other. The cross-sectional area of the slit penetrating portion (15s) is smaller than the cross-sectional area of the thickest part of the needle body portion (15c).
Provided is a method for producing a probe for a vitreous body operation such that the production of a probe for vitreous body operation in which a distal outer surface and a distal inner surface are both flat is facilitated. The method for producing a probe (10) for a vitreous body operation comprises steps of: placing a steel plate (30) in contact with an end face of a steel pipe (20); and applying an energy beam (50) along the outer circumference of the pipe end face from the steel plate side. By applying the energy beam (50), the steel plate (30) is cut while the pipe (20) and the steel plate (30) are welded. The steel sheet is cut and welded by using the same energy beam while both processes may be performed in separate steps.
A method of producing a medical cutting instrument. Medical cutting instrument is provided which stably exhibits high joint strength obtained by brazing. Cutting instrument is configured by providing a working section to a front end of a shank section. Working section consists of a carbide or a ceramic, shank section being constructed from round stainless steel bar or round tool steel bar. Shank section and working section are connected through a brazed section. Brazed section is portion at which shank section and working section are brazed together while brazing surfaces, which are provided with protrusion sections formed on shank section and/or working section, are caused to be in contact with each other. Protrusion sections each have sloped surfaces having an apex, and the height of the sloped surfaces is set in range of 0.5%-8%, inclusive, of the diameter of the brazing surface of the shank section.
B23P 15/28 - Fabrication d'objets déterminés par des opérations non couvertes par une seule autre sous-classe ou un groupe de la présente sous-classe d'outils de coupe
Provided is a vitreous body surgical probe that, in addition to having a probe main body that has sufficient bending rigidity, makes it easy to collect vitreous bodies, etc. that are in the vicinity of the retina, which are difficult to reach using conventional vitreous body surgical probes, while ensuring sufficient suction efficiency. A vitreous body surgical probe (10) that has: a pipe-shaped probe main body (11); an approximately cylindrical tip part (12) that is connected to a tip side of the probe main body, that has a smaller outer diameter than the probe main body, that has a sealed tip surface (14), and that has an opening (13) in a side section thereof; and a cutter (20) that has an outer diameter that conforms to the respective inner diameters of the probe main body and the tip part, that has a blade part (21) provided to the tip thereof, and that slides along the inner surfaces of the probe main body and the tip part.
Provided is a vitreous body cutter that has a tip that has an opening that can be moved a large amount, even if a pipe is narrow, and that makes it possible to suction a wide range of vitreous bodies, etc. A vitreous body cutter (10) that has: a pipe (20) that has an opening (21) provided in a tip side surface thereof; a cutter (30) that slides along an inner surface of the pipe (20); a motive power part (25) that is connected to the pipe (20) and that makes the cutter (30) slide; and an outer case (40) that has the pipe (20) inserted therethrough and that has the motive power part (25) provided to the inside thereof. The outer case (40) has a connection part (41) that connects to a cannula (50), which is mounted on an eyeball (60), such that the outer case becomes integrated with the cannula. The amount that the pipe (20) protrudes from the outer case (40) may be alterable.
Acupuncture needles; apparatus for use in medical analysis;
arterial blood pressure measuring apparatus; apparatus for
artificial respiration; artificial skin for surgical
purposes; artificial teeth; sets of artificial teeth; blood
testing apparatus; appliances for washing body cavities;
dental burs; cannulae; cases, fitted for medical
instruments; cases, fitted for use by surgeons and doctors;
castrating pincers; catgut; catheters; obstetric apparatus
for cattle; clips (surgical); corn knives; cutlery
(surgical); defibrillators; dental apparatus; dental
apparatus, electric; dentures; diagnostic apparatus for
medical purposes; dialyzers; drainage tubes for medical
purposes, electric acupuncture instruments;
electrocardiographs; electrodes for medical use; enema
apparatus for medical purposes; fleams; forceps; galvanic
belts for medical purposes; galvanic therapeutic appliances;
gastroscopes; heart pacemakers; heating cushions (pads),
electric, for medical purposes; hematimeters; hot air
therapeutic apparatus; hot air vibrators for medical
purposes; hypodermic syringes, inhalers; injectors for
medical purposes; instrument cases for use by surgeons and
doctors; artificial jaws; knives for surgical purposes;
lancets; lasers for medical purposes; lenses (intraocular
prostheses) for surgical implantation; medical apparatus and
instruments; medical guidewires; spoons for administering
medicine; mirrors for dentists; mirrors for surgeons;
needles for medical purposes; obstetric apparatus;
ophthalmometers; ophthalmoscopes; orthodontic appliances;
orthopaedic articles; pins for artificial teeth; saws for
surgical purposes; scalpels; scissors for surgery; tongue
scrapers; surgical apparatus and instruments; surgical
implants (artificial materials); surgical skin staplers;
surgical staplers; surgical staples; surgical staple
removers; suture materials; suture needles; syringes for
injections; syringes for medical purposes; thread
(surgical); traction apparatus for medical purposes;
trocars; armchairs for medical or dental purposes; brushes
for cleaning body cavities; apparatus for the treatment of
deafness; dentists' armchairs; operating tables; urological
apparatus and instruments; veterinary apparatus and
instruments.
A method of packaging medical supplies includes overlapping a front film onto a back film, at least one of the front and back film being transparent and bacteria impermeable and does not transmit molecules as large as or larger than O2, extending a material that is gas permeable and bacteria impermeable along an opening side of at least one of the front and back film, and sealing the periphery of the front and back films except for the opening to form a packaging bag; inserting medical supplies in the packaging bag and then sealing the bag; sterilizing an interior of the packaging bag with EO gas injected through the material that is gas permeable and bacteria impermeable, removing the gas after sterilization and drying; and sealing the packaging bag so that the material that is gas permeable and bacteria impermeable does not communicate with the inside of the packaging bag.
B01D 53/22 - Séparation de gaz ou de vapeursRécupération de vapeurs de solvants volatils dans les gazÉpuration chimique ou biologique des gaz résiduaires, p. ex. gaz d'échappement des moteurs à combustion, fumées, vapeurs, gaz de combustion ou aérosols par diffusion
A61B 50/30 - Récipients spécialement adaptés à l'emballage, la protection, la distribution, la collecte ou l'élimination des appareils ou des instruments chirurgicaux ou de diagnostic
B65B 7/02 - Fermeture des réceptacles ou récipients déformés par le contenu ou en prenant la forme, p. ex. sacs
A61L 2/20 - Procédés ou appareils de désinfection ou de stérilisation de matériaux ou d'objets autres que les denrées alimentaires ou les lentilles de contactAccessoires à cet effet utilisant des substances chimiques des substances gazeuses, p. ex. des vapeurs
Provided is a packaging material for a suture thread with a needle such that it is possible to take out a suture thread with a needle accommodated therein without the suture thread becoming entangled and such that the suture thread is less likely to rub against a point on the packaging material. The packaging material (10) has a configuration with three or more folds for accommodation of a suture thread (30) with a needle. The packaging material (10) has a curved cut-out portion (20) in an end portion of the packaging material (10) when opened. When the packaging material (10) is folded so that the curved cut-out portion (20) is to the inside of the packaging material (10), a crease and the curved cut-out portion (20) form a passage hole (25) for the suture thread (32). When the accommodated suture thread (30) with a needle is to be taken out of the packaging material (10), the suture thread (32) can be passed through the passage hole (25).
Provided is a dental instrument storage case whereby it is easy to take out only a necessary dental instrument from among dental instruments stored in a row therein. A dental instrument storage case (10) in which a plurality of dental instruments (50) provided with a shaft part (51) and an implement (52) are stored in a row, wherein the dental instrument storage case (10) has a storage recess (20) and a fixing groove (30), the shaft part (51) of each stored dental instrument (50) is retained in the storage recess (20), and a shaft end part (51a) of the shaft part (51) is pushed down from above from the retained state thereof and the shaft end part (51a) is held and fixed in the fixing groove (30), whereby the implement (52) can be lifted upward and fixed so as to stand obliquely.
A medical knife which maintains low penetration resistance, without the maximum-width parts of the medical knife creating sudden changes in penetration resistance even when passing through tissue. Knife includes a pointed tip, a cutting part which has edges having first oblique faces which are formed along the outer periphery, and second oblique faces which are formed inside the first oblique faces. Maximum-width parts are formed contiguously with the cutting part. A shank part is formed contiguously with the maximum-width parts. The cutting part is formed in such a way that the shape of the planar projection thereof becomes wider from the pointed tip towards the maximum-width parts, and the first oblique faces extend further towards the shank part side than the second oblique faces over at least one portion of the area running from the maximum-width parts to the shank part.
Acupuncture needles; apparatus for use in medical analysis;
arterial blood pressure measuring apparatus; apparatus for
artificial respiration; artificial skin for surgical
purposes; artificial teeth; sets of artificial teeth; blood
testing apparatus; appliances for washing body cavities;
dental burs; cannulae; cases, fitted for medical
instruments; cases, fitted for use by surgeons and doctors;
castrating pincers; catgut; catheters; obstetric apparatus
for cattle; clips (surgical); corn knives; cutlery
(surgical); defibrillators; dental apparatus; dental
apparatus, electric; dentures; diagnostic apparatus for
medical purposes; dialyzers; drainage tubes for medical
purposes, electric acupuncture instruments;
electrocardiographs; electrodes for medical use; enema
apparatus for medical purposes; fleams; forceps; galvanic
belts for medical purposes; galvanic therapeutic appliances;
gastroscopes; heart pacemakers; heating cushions (pads),
electric, for medical purposes; hematimeters; hot air
therapeutic apparatus; hot air vibrators for medical
purposes; hypodermic syringes, inhalers; injectors for
medical purposes; instrument cases for use by surgeons and
doctors; artificial jaws; knives for surgical purposes;
lancets; lasers for medical purposes; lenses (intraocular
prostheses) for surgical implantation; medical apparatus and
instruments; medical guidewires; spoons for administering
medicine; mirrors for dentists; mirrors for surgeons;
needles for medical purposes; obstetric apparatus;
ophthalmometers; ophthalmoscopes; orthodontic appliances;
orthopaedic articles; pins for artificial teeth; saws for
surgical purposes; scalpels; scissors for surgery; tongue
scrapers; surgical apparatus and instruments; surgical
implants (artificial materials); suture materials; suture
needles; syringes for injections; syringes for medical
purposes; thread (surgical); traction apparatus for medical
purposes; trocars; armchairs for medical or dental purposes;
brushes for cleaning body cavities; apparatus for the
treatment of deafness; dentists' armchairs; operating
tables; urological apparatus and instruments; veterinary
apparatus and instruments.
Provided is a suture needle configured so that the strength of the tip portion thereof where a sharp point is formed is ensured and so that resistance when the suture needle is passed through tissue is reduced. A suture needle having a triangular cross-section and consisting of austenite stainless steel having a structure elongated in a fiber-like form has: two first sloped surfaces (11) which are ground and which have a ridge (20) therebetween; and one bottom surface (13) which is located between the two first sloped surfaces and which is ground. The ridge is formed to have: a first cutting edge (1) which is formed by the two intersecting first sloped surfaces (11); a ridge section (20) which is located closer to a body than the first cutting edge and where the first sloped surfaces (11) do not intersect; and a second cutting edge (2) which is located closer to the front end side than the first cutting edge (1) and which is formed by two intersecting second sloped surfaces (12) which are ground, the two second sloped surfaces (12) being formed on both sides of the first cutting edge (1). The length L2 of the first cutting edge is in the range of three to twenty times the length L1 of the second cutting edge (2), and the tip (3) of the second cutting edge (2) is located at a position offset from the center of the material.
[ Acupuncture needles; arterial blood pressure measuring apparatus; apparatus for artificial respiration; artificial skin for surgical purposes; artificial teeth; sets of artificial teeth; blood testing apparatus; appliances for washing body cavities; ] dental burs [ ; cannulae; cases, fitted for medical instruments; cases, fitted for medical instruments for use by surgeons and doctors; castrating pincers; catheters; obstetric apparatus for cattle; defibrillators; dentures; dialyzers; drainage tubes for medical purposes; electric acupuncture instruments; electrocardiographs; electrodes for medical use; enema apparatus for medical purposes; galvanic belts for medical purposes; gastroscopes; heart pacemakers; hematimeters; medical instrument cases fitted for use by surgeons and doctors; artificial jaws; knives for surgical purposes; lancets; lasers for medical purposes; intraocular prostheses lenses for surgical implantation; medical guidewires; spoons for administering medicine; mirrors for dentists; mirrors for surgeons; needles for medical purposes; ophthalmometers; ophthalmoscopes; orthodontic appliances; pins for artificial teeth; saws for surgical purposes; scalpels; scissors for surgery; tongue scrapers; surgical apparatus and instruments; suture materials; suture needles; syringes for injections; syringes for medical purposes; traction apparatus for medical purposes; brushes for cleaning body cavities; dentists' armchairs; operating tables ]
Provided is a medical knife having a structure such that the cutting blade does not face upwards when placed on a platform. The medical knife (10) comprises a handle section (20) and a blade section (30). The handle section (20) has a protruding section (20a) that comes in point contact with a flat surface or in linear contact along the axial direction of the handle section, when an attempt is made to place a cutting blade (30a) of the blade section (30) of the medical knife so as to face upwards upon the flat surface. In addition, the protruding section (20a) comes in contact with a horizontal flat plane at a position displaced from a line descending vertically from the center of gravity of the medical knife.
Provided is a cannula, said cannula being prevented from easily falling out from an eyeball as a surgical instrument, etc. moves, contact of a base of said cannula with the eyeball causing no injury to the eyeball, and a pipe of said cannula being prevented from falling out from the base thereof. The cannula (10), which is to be inserted into an eyeball in an ophthalmic surgery, is provided with a metal pipe (11) to be inserted into the eyeball (A) and a base (12) formed of a flexible material, said base (12) being bonded to one end side of the pipe (11). It is preferred that the end face in the eyeball side of the base is concaved at the center or, upon the contact of the base with the eyeball, the contacting part of the base is deformed.
Medical machines and apparatus; surgical apparatus and instruments; skin staplers for medical and surgical use; skin staple removers for medical and surgical use; parts and fittings for all the aforesaid goods.
78.
VITREOUS BODY SURGICAL PROBE, AND METHOD OF MANUFACTURING SAME
Provided is a vitreous body surgical probe with flat inside and outside surfaces of a tip portion of a probe body, the tip portion having no opening left. The vitreous body surgical probe includes a probe body (11) with a tip portion (14) having a flat outside surface (14b) and a flat inside surface (14a). At least a part of the tip portion (14) has a granular structure (18) obtained by dissolution by energy beam irradiation followed by solidification. The tip portion (14) may have an inclined surface at a desired angle with respect to the axial direction of the probe body (11).
Provided is a manufacturing method for a needle equipped suture for which fluctuation in pull-out load is small, and which has good ease of use. Provided is a needle equipped suture formed by opening a stop hole (14) from the base end surface (13a) of an eyeless suture needle (10) along the length direction of the eyeless suture needle (10), and inserting a suture (18) into the stop hole (14) and performing crimping. The crimping amount that is in accordance with the size of the diameter of the stop hole (14) of the eyeless suture needle (10) is added so that the cross sectional shape of a crimped section is circular, and so that the axial length of the crimped section is less than the diameter of the eyeless suture needle (10). This configuration enables the suture (18) to be drawn out of the eyeless suture needle using a pull-out load the size of which is in a specific range, and enables fluctuations in the pull-out force to be reduced.
[Problem] To rationalize production steps for a medical stapler. [Solution] An anvil (A): that forms a medical staple (3) supported in conjunction with a ram (5) in a medical stapler; sutures biological tissue; has dimensions corresponding to the formed peak section in the staple (3) after forming; and has a support section (11) that supports the crown (3b) of the staple (3), and a chamfered corner section (12) formed along both end sections in a direction along the crown (3b) of the staple (3) in the support section (11), which comes in contact with the crown (3b) when the supported staple (3) is formed and regulates a curved section thereof. The chamfered corner section (12) is cured by plastic working and formed.
[Problem] To provide a suture needle with which both ends of a single suture thread or two suture threads can be attached to a single base end face and to which suture threads that are thicker than in the past can be easily and securely attached. [Solution] The suture needle (10), which is provided with a blind hole (11) from the base end face (13) of the suture needle in the axial direction and in which a suture thread (12) is attached by inserting the suture thread (12) into the blind hole (11) and crimping, is characterized in that two blind holes (11) penetrate a single base end face (13) and both ends of a single suture thread (12) or two suture threads can be attached. The two penetrating blind holes can be partially joined so that the overall shape of the blind holes at the base end face forms a figure 8.
[Problem] To provide a trocar cannula (100) in which the base (120) will be stable over the eyeball (A) and will not roll. [Solution] A trocar cannula (100) provided with a base (120) and a hollow pipe-shaped cannula (110) of a lesser diameter than the base (120), the cannula being erected on the base (120), wherein a slope (120a) having an obtuse angle (α) with the center axis (b) of the cannula (110) is formed on the base (120).
A medical stapler according to the present invention includes a magazine containing staples, a rail for aligning the staples, and a mechanism for punching out staples; a lever for actuating the mechanism for punching out the staples; and a housing for enclosing and connecting the magazine and the lever. An inner surface of the housing includes a linear positioning portion continuing from an opening of the housing, and a latching portion for latching the magazine, a surface of the magazine tangent to the inner surface of the housing includes a positioning portion conforming to the positioning portion of the housing, and a latching portion conforming to the latching portion of the housing, and combining the positioning portion of the housing and the positioning portion of the magazine, and fitting the latching portion of the housing and the latching portion of the magazine connect the housing and the magazine.
A61B 17/04 - Instruments, dispositifs ou procédés chirurgicaux pour refermer les plaies ou les maintenir ferméesAccessoires utilisés en liaison avec ces opérations pour la suture des plaiesSupports ou emballages pour aiguilles ou matériaux de suture
A61B 17/10 - Instruments, dispositifs ou procédés chirurgicaux pour refermer les plaies ou les maintenir ferméesAccessoires utilisés en liaison avec ces opérations pour poser ou retirer les clamps pour blessuresChargeurs de clamps pour blessures
Width of a space for receiving staples of a magazine is greater than length of the staples and is less than the sum of the length of the staples to ½ of the diameter of the staples, preferably ⅓ thereof or less. The magazine is formed as half split bodies on either side of a rail along the length thereof, a convex positioning part is provided on one of the half split bodies, a concavity for engaging with the positioning convexity is formed on the other half split body, support holes for engaging with positioning parts are formed in the half split bodies, a locking part for holding engagement with the other half split body is provided on said one of the half split bodies, and a to-be-locked part for engaging with the locking part is formed on the other half split body.
01 - Produits chimiques destinés à l'industrie, aux sciences ainsi qu'à l'agriculture
05 - Produits pharmaceutiques, vétérinaires et hygièniques
10 - Appareils et instruments médicaux
Produits et services
(1) Surgical instruments; surgical needles; dental instruments; reaming and filing instruments; tooth scaling and root planning instruments, namely periodontal scalers; broaches; dental operating units; endodontic instruments; root canal instruments; rotary root canal instruments; ultrasonic root canal instruments; root canal filling instruments; dental accessories; dental containers; dental file cleaners.
(2) Dental burs with abrasives.
(3) Sutures.
(4) Staplers; dental drills; surgical scalpel; grinding discs for dental use.
(5) Forceps; knives; ophthalmic instruments.
(6) Surgical wires.
(7) Dental implants; microscopes.
(8) Surgical saws; orthopedic instruments; lasers for eye surgery; lasers for dental surgery.
(9) Trocars; infusion cannulas; plugs for cannulas.
(10) Acupuncture needles; diagnostic preparations for medical laboratory use; Arterial blood pressure measuring apparatus; artificial respiration apparatus; Artificial skin for surgical purposes; Artificial teeth; Sets of artificial teeth; Blood testing apparatus; Appliances for washing body cavities; Dental burs; Cannulae; Cases, fitted for medical instruments; Cases, fitted for use by surgeons and doctors; Castrating pincers; Catgut; Catheters; Obstetric apparatus for cattle; Clips (surgical); Corn knives; Cutlery (surgical); Defibrillators; Dental apparatus; Dental apparatus, electric; ultrasonic medical diagnostic apparatus; magnetic resonance imaging (MRI) diagnostic apparatus; x-ray apparatus for medical use; Dialyzers; Drainage tubes for medical purposes; Electric acupuncture instruments; Electrocardiographs; Electrodes for medical use; Enema apparatus for medical purposes; Fleams; Forceps; Galvanic belts for medical purposes; Galvanic therapeutic appliances; Gastroscopes; Medical guidewires, Heart pacemakers; Heating cushions (pads), electric, for medical purposes; Hematimeters; portable electric heaters for therapeutic use; Hot air vibrators for medical purposes; Hypodermic syringes, Inhalers; injector, namely needle-free medical injecting syringe; Instrument cases for use by surgeons and doctors; Artificial jaws; Knives for surgical purposes; Lancets; phototherapeutic apparatus for medical purposes; lasers for eye surgery; lasers for dental surgery; Lenses (intraocular prostheses) for surgical implantation; Spoons for administering medicines; Mirrors for dentists; Mirrors for surgeons; Needles for medical purposes; medical instruments for obstetric and gynaecological examination; Ophthalmometers; Opthalmoscopes; Orthodontic appliances; orthopaedic belts, orthopaedic bone implants, orthopaedic bone screws, orthopaedic braces, orthopaedic corsets, orthopaedic footwear, orthopaedic suspenders; Pins for artificial teeth; Saws for surgical purposes; Scissors for surgery; Tongue scrapers; Surgical apparatus and instruments; Surgical implants (artificial materials); Suture materials; Suture needles; Syringes for injections; Thread (surgical); traction pulleys and weights for medical purposes; Trocars; Armchairs for medical or dental purposes; Brushes for cleaning body cavities; hearing aids; surgical implants, namely cochlear implants; Dentists' armchairs; Operating tables; Urological apparatus and instruments; Veterinary apparatus and instruments; Teething rings; Ice bag pillows for medical purposes; Triangular bandages; Supportive bandages; Feeding cups for medical purposes; Dropping pipettes for medical purposes; Teats; Medical ice bags; Medical ice bag holders; Baby bottles; Vacuum bottles for nursing; Cotton swabs for medical use; Finger guards for medical purposes; Contraceptives, non-chemical; Artificial tympanic membranes; Prosthetic or filling materials (not for dental use); Esthetic massage apparatus for industrial purposes; Electric massage apparatus for household use; Urinals for medical purposes; Bed pans; Ear picks.
[Problem] To provide a medical cutting tool with low impalement resistance. [Solution] The edged medical cutting tool comprising a knife, trocar or cutting suture needle has a sharp edge (1) for incising living tissue and a flat part (2) that configures the edge, and the color of the portion of the flat part (2a) along the edge (1) differs from the color of the rest of the flat part (2b). The difference in color results from a difference in the thickness of an oxide film. Another edged medical cutting tool is configured of austenite stainless steel and has a sharp edge (1) for incising living tissue and a flat part (2) that configures the edge. The chrome content of the portion of the flat part (2a) along the edge is higher than the chrome content of the rest of the flat part (2b).
[Problem] Because the knife edge of medical knives such as straight knives manufactured with austenite stainless steel is thin and sharp, there is the problem that the knife edge bends too easily when making incisions in the cornea, sclera, etc. during ophthalmologic surgery. The invention provides a medical knife capable of increasing the strength of the thin, sharp knife edge and preventing the reduction of sharpness. [Solution] This medical knife has a flat cutting part and an inclined surface formed along the border of said cutting part. By electrolytic polishing or chemical polishing of the inclined surface, a convexly curved cutting edge is formed on at least the edge of the inclined surface of the knife. The knife edge has a rounded configuration. The knife edge being rounded increases the thickness of the knife edge, increases the strength thereof and hinders bending.
[Problem] To provide a silicone-coated suture needle wherein the time required for silicone coating (including drying time) is reduced, and a production method for same. [Solution] To support on a horizontal plane a plurality of suture needles (10) comprising: a shaft (15) with a prescribed cross-sectional shape; and a tapered section (14) that continues from the shaft (15) and gradually narrows towards a sharp needle tip (13); to spray liquid silicone on the tapered section (14) from one side of the supported suture needles(10) and coat the needles to the other side of the tapered section (14); and to dry same at room temperature. Then, once this coating has occurred a plurality of times, to heat-dry the silicone.
[Problem] To provide a method for manufacturing a medical cutting tool and a medical cutting tool that will not rust and that is capable of stably demonstrating high strength. [Solution] A working section (2) formed by a cemented carbide or ceramic is brazed to the tip of a shank part (1) formed by a round bar-shaped austenitic stainless steel, thereby constituting a cutting tool (A). The shank part (1) comprises a shank (1a), a neck (1b), and a joint (1c) to which the working section (2) is brazed. At least part of the stainless steel near the joint (1c) of the neck (1b) and in the joint (1c) has a fiber-like structure. The structure of the stainless steel in the joint (1c) on the working section (2) side has a granular structure.
[Problem] To provide a method for manufacturing a medical cutting tool and a medical cutting tool that will not rust and that is capable of stably demonstrating high strength. [Solution] A working section (2) formed by a cemented carbide or ceramic is brazed to the tip of a shank part (1) formed by a round bar-shaped austenitic stainless steel, thereby constituting a cutting tool (A). The shank part (1) comprises a shank (1a), a neck (1b), and a joint (1c) to which the working section (2) is brazed. At least part of the stainless steel near the joint (1c) of the neck (1b) and in the joint (1c) has a fiber-like structure. The structure of the stainless steel in the joint (1c) on the working section (2) side has a granular structure.
A gutta-percha remover suitable for removing a gutta-percha and having flexibility with good compliancy to curvature of a root canal and a superior removing capability for forming a sufficient gap bet the gutta-percha and the root canal wall is provided. The gutta-percha remover includes a shaft, a tapered working portion connected to the shaft, and one, two, or more screw-shaped grooves formed in the working portion. The cross-sections of a base end and a tip of the working portion are such that the tip of the working portion is greater in rate of the area of each cross-section to a corresponding circle circumscribing the cross-section.
A61C 5/02 - Instruments pour le traitement chirurgical des racines ou des nerfs dentaires; Aiguilles pour retirer le nerf; Méthodes ou instruments pour le traitement des racines
A stent including a plurality of loop stents connected by struts so that it bends uniformly as a whole.
A stent A including a plurality of loop stents 2 connected by a plurality of struts 3, the loop stents 2 each formed of a stent main wire 1 folded into a zigzag shape and joined at its ends, wherein the bending strength of each strut 3 is larger than the bending strength of the stent main wire 1.
A61F 2/82 - Dispositifs maintenant le passage ou évitant l’affaissement de structures tubulaires du corps, p. ex. stents
A61F 2/89 - Stents ayant une forme caractérisée par des éléments filiformesStents ayant une forme caractérisée par une structure de type filet ou de type à mailles les éléments filiformes comprenant au moins deux anneaux adjacents reliés de manière flexible par des éléments séparés
A medical cutting instrument which stably exhibits high joint strength obtained by brazing. A cutting instrument (A) is configured by providing a working section (2) to the front end of a shank section (1), the working section (2) consisting of a carbide or a ceramic, the shank section (1) being constructed from a round stainless steel bar or a round tool steel bar. The shank section (1) and the working section (2) are connected through a brazed section (3). The brazed section (3) is the portion at which the shank section (1) and the working section (2) are brazed together while brazing surfaces, which are provided with protrusion sections formed on the shank section (1) and/or the working section (2), are caused to be in contact with each other. The protrusion sections provided on the brazing surfaces each comprise sloped surfaces (5b) having an apex (5a), and the height of the sloped surfaces (5b) is set in the range of 0.5%-8%, inclusive, of the diameter of the brazing surface of the shank section (1).
A medical cutting instrument which stably exhibits high joint strength obtained by brazing. A cutting instrument (A) is configured by providing a working section (2) to the front end of a shank section (1), the working section (2) consisting of a carbide or a ceramic, the shank section (1) being constructed from a round stainless steel bar or a round tool steel bar. The shank section (1) and the working section (2) are connected through a brazed section (3). The brazed section (3) is the portion at which the shank section (1) and the working section (2) are brazed together while brazing surfaces, which are provided with protrusion sections formed on the shank section (1) and/or the working section (2), are caused to be in contact with each other. The protrusion sections provided on the brazing surfaces each comprise sloped surfaces (5b) having an apex (5a), and the height of the sloped surfaces (5b) is set in the range of 0.5%-8%, inclusive, of the diameter of the brazing surface of the shank section (1).
Provided is a medical knife which makes it possible to maintain low penetration resistance, without the maximum-width parts of the medical knife creating sudden changes in penetration resistance even when passing through tissue. A knife comprises: a pointed tip; a cutting part which has edges consisting of first oblique faces which are formed along the outer periphery and second oblique faces which are formed inside the first oblique faces; maximum-width parts; and a shank part which is formed contiguously with the maximum-width parts. The cutting part is formed in such a way that the shape of the planar projection thereof becomes wider from the pointed tip towards the maximum-width parts, and the first oblique faces extend further towards the shank part side than the second oblique faces over at least one portion of the area running from the maximum-width parts to the shank part.
Provided is a medical stapler in which a magazine and a housing can be easily and firmly coupled. A medical stapler (10) comprises a magazine (2), a lever (3), and a housing (1). A staple (4), a rail (5) for aligning and placing the staple (4), and a staple punching mechanism are disposed in the magazine (2). The lever (3) is used to operate the staple punching mechanism. The housing (1) is coupled to the medical stapler (10) with the magazine (2) and the lever (3) being disposed therebetween. A positioning part having a linear shape and communicating from an opening in the housing, and a locking part for locking the magazine are provided on an inner surface of the housing. A positioning part corresponding to the shape of the positioning part of the housing, and a locking part corresponding to the shape of the locking part of the housing are provided on a surface of the magazine in contact with the inner surface of the housing. The housing and the magazine are coupled to each other by fitting together the locking part of the housing and the locking part of the magazine while aligning the positioning part of the housing and the positioning part of the magazine.
Disclosed is a surgical knife capable of preventing excessive etching and furthermore reducing the resistance to piercing; also disclosed is a manufacturing method thereof. The surgical knife is formed from a round bar (15) of austenitic stainless steel having a fibrous structure. The manufacturing method involves: a step for forming on the round bar (15) an operation portion (16), which is the portion of the knife for piercing or cutting open living tissue, such that the fibrous structure is oriented in the direction of the central axis (a); a step for forming polishing marks (24) on the operation portion of the surgical knife; and a step for processing by etching the operation portion (23) after polishing. Said etching processing forms multiple craters (26) in the operation portion but is only carried out to a degree at which no grooves form along the direction of the fibrous structure, and a silicon coating is applied from above.
Disclosed is a dental root canal treatment instrument having a simplified manufacturing process involving manufacturing the work portion and the joint portion by means of the same processing method. A metal rod-form body (11) has a work portion (11a) forming a fine taper which is inserted into the root canal when used, and a joint portion (11b) connected to the thick-diameter end of the work portion and embedded in a handle (12), wherein the work portion and the joint portion are formed by the same processing method. The dental root canal treatment instrument (10) is completed by forming the handle (12) by injecting a synthetic resin to cover the joint portion (11b). The bond between the joint portion and the handle can be reinforced by adding at least one protrusion or recess to the joint.
A61C 5/02 - Instruments pour le traitement chirurgical des racines ou des nerfs dentaires; Aiguilles pour retirer le nerf; Méthodes ou instruments pour le traitement des racines
A61C 5/04 - Instruments pour obturer les dents naturelles; Méthodes ou instruments pour le traitement du canal du nerf de la dent
Disclosed is a staple magazine for a medical stapler capable of preventing staple jamming and at the same time lowering the cost of manufacturing. The width dimension of the space in a magazine 40 that stores staples 3 is greater than the length of staple 3, and equals the length of staple 3 + less than 1/2 of the diameter d of the staple, ideally less or equal to 1/3 of said diameter. In addition to the aforementioned configuration, sidewalls 41 and 42 are formed along both sides of the rail of magazine 40 in the lengthwise direction; and position determining convexity 41a is disposed on one sidewall, while concavity 42a, which interlocks with the position determining convexity, is disposed on the other sidewall; and position determining part 5b, which determines the position of rail 5, is formed on rail 5; and on the sidewalls are formed position determining part and interlocking receiving part 41c and 42c; and on one sidewall is locking part 41b, which supports the interlocking with the other sidewall, while on the other sidewall is cover locking part 42b, which engages the locking part.
Disclosed is a cannula that can decrease the rate of increase in resistance that is generated when penetrating an incision formed in tissue. The cylindrical cannula (1) configures a trocar (B) used during surgery; an incision member (C) can be inserted and removed therewithin; one side of the end portion of the cylinder forms a protruding slanted cut end (2); and a tapered surface (3) having an uneven width and a width that is wider on the protruding side (the side of point 2a) of the slanted cut end than the non-protruding side (the side of point 2b) is formed on the outer periphery of the slanted cut end (2).
