Dental handpieces; surgical handpieces; dental handpieces
with power controller; surgical handpieces with power
controller; ultrasonic scalers for dental use; air scalers
for dental use; scaler tips for dental use; dental suction
instruments; dental instruments for measuring root canal
length; ultrasonic cutter for dental handpieces; bone
cutting and resecting instruments for surgical use; drilling
jigs for dental applications; drills for dental use; dental
burs; bits for dental drills; dentists' armchairs; dental
examination chairs; dentists' chairs; oral irrigators for
use in dentistry; dental apparatus, electric; instruments
for removing subgingival calculus, and their parts; mobile
units for house calls equipped with dental examination
instruments; powder jet devices for dental use; instruments
for measuring dental and orthopedic implants anchored in
human and animal bones; surgical drills; surgical cutlery;
drilling jigs for surgical applications; bits for surgical
drills; dental implant stability measuring machines and
instrument; dental machines and instruments for measuring of
root canals for diagnostic purposes; medical machines and
instruments for measuring bones for diagnostic purposes;
surgical apparatus, electric; surgical apparatus and
instruments for dental use, and their parts and fittings;
dental apparatus and instruments, and their parts and
fittings; medical apparatus and instruments, and their parts
and fittings.
Provided are a turbine rotor of a rotary cutting instrument and a rotary cutting instrument having a turbine rotor with which it is possible to reduce a sharp increase in the rotational speed of a turbine rotor and to suppress a reduction in cutting power due to a loss of speed when a cutting load is input during rotation of the turbine rotor. A turbine rotor (42) of an air-turbine handpiece (1) is formed of a metal having a density greater than or equal to 4.0 [g/cm3].
Dental instruments, namely, dental handpieces, power and control units for dental handpieces, motors for dental handpieces, foot pedals for dental handpieces, foot controllers for transmitting power to dental handpieces; dental apparatus and instruments for dental cleaning, namely, dental drills, dental excavators; dental irrigation tubes; dental equipment, namely, driving unit for dental handpieces, motors for dental handpieces, foot pedals for dental handpieces, foot controllers for dental handpieces; dental handpieces; powder jet devices for dental use; apparatus and instruments for dental prophylaxis, namely, powder abrasive blasters, dental irrigators and jet stream cleaners, pumps for dental irrigators and jet stream cleaners, atomizers sold empty for dental irrigation and dental cleansing fluids
(1) Dental handpieces; surgical handpieces; dental handpieces with power controller; surgical handpieces with power controller; ultrasonic scalers for dental use; air scalers for dental use; scaler tips for dental use; dental suction instruments; dental instruments for measuring root canal length; ultrasonic cutter for dental handpieces; bone cutting and resecting instruments for surgical use; drilling jigs for dental applications; drills for dental use; dental burs; bits for dental drills; dentists' armchairs; dental examination chairs; dentists' chairs; oral irrigators for use in dentistry; dental apparatus, electric; instruments for removing subgingival calculus, and their parts; mobile units for house calls equipped with dental examination instruments; powder jet devices for dental use; instruments for measuring dental and orthopedic implants anchored in human and animal bones; surgical drills; surgical cutlery; drilling jigs for surgical applications; bits for surgical drills; dental implant stability measuring machines and instrument; dental machines and instruments for measuring of root canals for diagnostic purposes; medical machines and instruments for measuring bones for diagnostic purposes; surgical apparatus, electric; surgical apparatus and instruments for dental use.
Dental handpieces; surgical handpieces being instruments; dental handpieces with power controller; surgical handpieces being instruments with power controller; dental instruments, namely, ultrasonic scalers for dental use; dental instruments, namely, air scalers for dental use; dental instruments, namely, scaler tips for dental use; dental suction instruments, namely, dental suction apparatuses; dental instruments for measuring root canal length; ultrasonic cutter for dental handpieces; bone cutting and resecting instruments for surgical use; drilling jigs for dental applications; drills for dental use; dental burs; bits for dental drills; dentists' armchairs; dental examination chairs; dentists' chairs; oral irrigators for use in dentistry; electric dental apparatus, namely, ultrasound apparatus; electric dental apparatus and instruments for use in endodontics, namely, tooth disinfection apparatus and instruments, tooth cleaning apparatus and instruments, root canal treatment apparatus and instruments, and oral irrigators; electric dental apparatus, namely, power operated dental polishers; dental instruments for removing subgingival calculus, and their parts; mobile dental kits for house calls comprised primarily of dental examination instruments; powder jet devices for dental use; instruments for measuring dental and orthopedic implants anchored in human and animal bones; surgical drills; surgical cutlery; drilling jigs for surgical applications; bits for surgical drills; dental implant stability measuring machines and instrument; dental machines and instruments for measuring of root canals for diagnostic purposes; medical machines and instruments for measuring bones for diagnostic purposes; surgical apparatus, electric; surgical apparatus and instruments for dental use; dental apparatus for oral surgery
14.
ABNORMALITY DETERMINATION DEVICE AND ABNORMALITY DETERMINATION METHOD FOR DENTAL HANDPIECE
An abnormality determination device for a dental handpiece, the abnormality determination device including: an electrical current output unit configured to supply, to a drive motor attached to the dental handpiece, a test electrical current in a no-load state, the test electrical current being smaller than a no-load electrical current at a rotational speed of the dental handpiece during a normal treatment in the no-load state; a rotational speed detector configured to detect a rotational speed of the drive motor in a state where the test electrical current is supplied; a processor configured to compare the rotational speed detected by the rotational speed detector with a threshold rotational speed; and an abnormality detector configured to determine abnormality that the dental handpiece is abnormal if the rotational speed detected by the rotational speed detector is smaller than the threshold rotational speed.
In the present invention, a device for driving a permanent magnet synchronous motor comprises: an inverter; a detection means that detects electric current that flows in the permanent magnet synchronous motor; and a control means that controls the permanent magnet synchronous motor via the inverter, using an electric current value that is detected by the detection means. The control means performs a calculation for estimating the position of the rotor of the permanent magnet synchronous motor, on the basis of electric current that is generated by applying to the permanent magnet synchronous motor at predetermined phase intervals a second polyphase alternating current of a higher frequency than a first polyphase alternating current for rotatably driving the permanent magnet synchronous motor.
A dental handpiece configured to rotatably drive a dental treatment tool mounted in a chuck mechanism includes the chuck mechanism in which the dental treatment tool is mounted so as to be attachable and detachable. The chuck mechanism includes a hollow cylindrical sleeve, a cylindrical slide member, a plurality of divided movable pieces disposed in the sleeve, an elastic biasing member configured to bias the cylindrical slide member forward in an insertion direction of the dental treatment tool, and a stopper unit which restricts forward axial movement of the plurality of divided movable pieces in the insertion direction. The divided movable pieces are moved in a radial direction by relative movement between the divided movable pieces and the cylindrical slide member in the axial direction, so that fixation of the dental treatment tool and release of the fixation are performed.
03 - Cosmetics and toiletries; cleaning, bleaching, polishing and abrasive preparations
05 - Pharmaceutical, veterinary and sanitary products
Goods & Services
Non-medicated dentifrices; cleaning, polishing, scouring and abrasive preparations Pharmaceutical preparations for prevention and improvement of dental caries and periodontal disease; medical preparations for the treatment and removal of supragingival stains and calculus; veterinary pharmaceutical preparations for removal of plaque and biofilm; sanitary preparations for medical purposes; dental powders and abrasives used for dental prophylaxis and the removal of tartar
A dental handpiece includes a cylindrical outer body, an insert body that includes an ultrasonic vibrator, and is accommodated in the outer body, a front end portion of the insert body and a rear end portion of the insert body, a tip connection portion that detachably holds a scale tip to which ultrasonic vibration from the ultrasonic vibrator is transmitted, and a cleaning liquid flow path that guides a cleaning liquid supplied from a cleaning liquid injection port of the insert body to a front end portion of the outer body. The cleaning liquid flow path includes an immersion flow path in which the insert body is immersed in the cleaning liquid in the outer body and the cleaning liquid in which the insert body is immersed is discharged from the front end portion of the outer body.
03 - Cosmetics and toiletries; cleaning, bleaching, polishing and abrasive preparations
05 - Pharmaceutical, veterinary and sanitary products
Goods & Services
Non-medicated dentifrices; cleaning, polishing, scouring and abrasive preparations. Pharmaceuticals, medical and veterinary preparations; sanitary preparations for medical purposes; dental powders and abrasives used for dental prophylaxis and the removal of tartar.
A surgical bur includes a shaft portion that rotates in a rotation direction about a rotation axial line of the surgical cutting bur, and a cutting portion that is provided at a distal end of the shaft portion. In the surgical bur, the cutting portion has a spherical shape, has abrasive grains on a surface of the cutting portion, and has a first vertical groove extending from a distal end side of the cutting portion in an axial direction.
Dental machines and apparatus, namely, dental handpieces, air scalers and ultrasonic scalers; surgical machines and apparatus, namely, surgical handpieces
A transducer cover for use in an ultrasonic medical instrument having a transducer is disclosed. The transducer cover includes a vibration absorbing layer of a generally cylindrical form made of a synthetic resin having a vibration absorbing property, and a chemical blocking layer of a generally cylindrical form made of a synthetic resin which is impermeable to water and chemicals. The vibration absorbing layer and the chemical blocking layer are coaxially laminated, and capable of sealing arrangement over and around the transducer. Also disclosed is an ultrasonic medical instrument having an ultrasonic transducer and the transducer cover, and a method for forming the transducer cover over and around an ultrasonic transducer of an ultrasonic medical instrument.
A61C 17/20 - Power-driven cleaning or polishing devices using ultrasonics
C23C 14/00 - Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
C23C 18/02 - Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coatingContact plating by thermal decomposition
C23C 18/12 - Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coatingContact plating by thermal decomposition characterised by the deposition of inorganic material other than metallic material
A61C 1/08 - Machine parts specially adapted for dentistry
37 - Construction and mining; installation and repair services
Goods & Services
Dental apparatus and instruments; Autoclaves for medical use; Ultrasonic cleaning instruments for veterinary use; Ultrasonic cleaning instruments for surgical use; Ultrasonic cleaning instruments for medical use. Sterilisers for surgical instruments; Sterilisers for dental instruments; Sterilisers for medical instruments; Sterilisers; Sterilization autoclaves; Electrical autoclaves for use in sterilization; Autoclaves (not for medical use); Disinfectant apparatus; Washer disinfectors. Maintenance and repair of surgical instruments and apparatus; Maintenance and repair of medical instruments, apparatus and equipment; Providing information relating to the repair or maintenance of laboratory apparatus and instruments; Machinery installation, maintenance and repair; Medical apparatus installation; Sterilization of medical instruments; Sterilisation of surgeon's instruments.
37 - Construction and mining; installation and repair services
Goods & Services
Dental apparatus and instruments; Autoclaves for medical use; Ultrasonic cleaning instruments for veterinary use; Ultrasonic cleaning instruments for surgical use; Ultrasonic cleaning instruments for medical use. Sterilisers for surgical instruments; Sterilisers for dental instruments; Sterilisers for medical instruments; Sterilisers; Sterilization autoclaves; Electrical autoclaves for use in sterilization; Autoclaves (not for medical use); Disinfectant apparatus; Washer disinfectors. Maintenance and repair of surgical instruments and apparatus; Maintenance and repair of medical instruments, apparatus and equipment; Providing information relating to the repair or maintenance of laboratory apparatus and instruments; Machinery installation, maintenance and repair; Medical apparatus installation; Sterilization of medical instruments; Sterilisation of surgeon's instruments.
Provided are an electric motor that enables to achieve downsizing while securing performance, and a dental device that includes the electric motor. A brushless slotless electric motor 10 includes: a stator 3 that includes a stator core 301 and a plurality of coils 31 to 33, the plurality of coils 31 to 33 being disposed at an inside of the stator core 301; and a rotor 2 that includes a shaft 21 and a magnet 22, the rotor 2 being rotated around the shaft 21 with respect to the stator 3. The plurality of coils 31 to 33 are adjacent to each other in a rotation direction of the rotor 2 so as not to lap mutually. Lf
A61C 1/06 - Dental machines for boring or cutting characterised by the drive of the dental tools with electric drive
A61C 1/02 - Dental machines for boring or cutting characterised by the drive of the dental tools
H02K 5/15 - Mounting arrangements for bearing-shields or end plates
H02K 29/03 - Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with a magnetic circuit specially adapted for avoiding torque ripples or self-starting problems
H02K 29/00 - Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
A61C 1/08 - Machine parts specially adapted for dentistry
H02K 21/12 - Synchronous motors having permanent magnetsSynchronous generators having permanent magnets with stationary armatures and rotating magnets
H02K 3/24 - Windings characterised by the conductor shape, form or construction, e.g. with bar conductors with channels or ducts for cooling medium between the conductors
An electric motor that enables to promote a further downsizing and performance enhancement, and a dental device that includes the electric motor. A brushless slotless electric motor 10 includes: a stator 3 that includes a stator core 301 and a plurality of coils 31 to 33 disposed inside of the stator core 301; a rotor 2 that includes a shaft 21, the rotor 2 being rotated around the shaft 21 with respect to the stator 3; and a medium pathway 40 through which a medium passes, the medium being supplied for actualizing a function of a dental handpiece 9A to which the electric motor 10 is applied. The plurality of coils 31 to 33 are adjacent to each other in a rotation direction of the rotor 2 so as not to lap mutually. The medium pathway 40 is disposed between the adjacent coils 31 to 33.
H02K 3/47 - Air-gap windings, i.e. iron-free windings
H02K 29/03 - Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with a magnetic circuit specially adapted for avoiding torque ripples or self-starting problems
A61C 1/06 - Dental machines for boring or cutting characterised by the drive of the dental tools with electric drive
This powder mixed gas generator (20) comprises: a chamber (42) (which includes a container body (23) and a lid (24)) having a space (53) for housing a powder (47) therein; a gas jetting section (25) that is placed in the chamber (42) and jets a gas (54); and a mixed gas discharging section (26) that discharges to the outside a mixed gas (55) in which the gas and the powder (47) are mixed. The gas jetting section (25) jets the gas (54) to form a circulation flow (52) circulating inside the space (53). The mixed gas discharging section (26) includes a mixed gas suction opening (49) for receiving the mixed gas (55). The mixed gas suction opening (49) has an opening facing the flow direction of the circulation flow (52).
Provided is an autoclave for sterilization including a sterilization chamber, a tank of water, connection means configured to connect the tank to the sterilization chamber in a fluidic through connection, heating means configured to heat and to pressurize the water and to supply the sterilization chamber to perform sterilization cycles, in which the tank includes a filter, the tank is in addition divided into a high potential portion and a low potential portion, the portions being in reciprocal fluidic through connection through the filter, the filter comprising a plurality of filtering layers including distribution layers configured to slow down and improve the distribution of the water along the entire area of the layers and active layers configured to perform purification functions of the water.
Provided are an electric motor that promotes further downsizing and an improvement in performance, and a dental device provided with said electric motor. This brushless slotless electric motor 10 is provided with: a stator 3 that has a stator core 301 and a plurality of coils 31-33 disposed further to the inside than the stator core 301; a rotor 2 that has a shaft 21 and is rotated relative to the stator 3 around the shaft 21; and a medium path 40 through which a medium, which is supplied in order to realize the function of a handpiece 9A for dentistry to which the electric motor 10 is applied, is passed. The coils 31-33 do not overlap with each other, but adjoin each other in the rotational direction of the rotor 2. The medium path 40 is disposed between each of the adjoining coils 31-33.
H02K 21/14 - Synchronous motors having permanent magnetsSynchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
A61C 1/06 - Dental machines for boring or cutting characterised by the drive of the dental tools with electric drive
H02K 29/06 - Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with position sensing devices
This invention provides an electric motor that can be reduced in size without compromising the performance thereof and a dental device provided with said electric motor. This brushless/slotless electric motor 10 comprises the following: a stator 3 that has a stator core 301 and a plurality of coils 31-33 laid out inwards of said stator core 301; and a rotor 2 that has a shaft 21 and a magnet 22 and is rotated about the shaft 21 relative to the stator 3. The plurality of coils 31-33 are adjacent to each other in the direction of rotation of the rotor 2 without overlapping. The axial length Lf of the stator core 301 and the axial length Lc of each coil satisfy the relation Lf < Lc.
A nozzle for a dental handpiece having a connector portion to be connected to a handpiece body, and a nozzle body, which is provided near its end with a notch of a substantially rectangular section cut out from the front face into the lateral faces, the notch forming upstream and downstream faces. The nozzle has a channel and an injection port thereof for transferring the mixture and a channel and an injection port thereof for transferring water, separate from each other. The channel for the mixture extends through the nozzle body along the front face from the connector portion to near the end, with the injection port for the mixture opened in the upstream face. With this nozzle, the mixture is properly injected onto a treatment site in subgingival treatment, while the mixture injected subgingivally is efficiently discharged supragingivally, to improve work efficiency in dental treatment.
A61C 3/025 - Instruments acting like a sandblast machine, e.g. for cleaning, polishing or cutting teeth
A61C 17/02 - Rinsing or air-blowing devices, e.g. using fluid jets
B05B 1/26 - Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with means for mechanically breaking-up or deflecting the jet after discharge, e.g. with fixed deflectorsBreaking-up the discharged liquid or other fluent material by impinging jets
A method for maintenance checking of a dental handpiece is disclosed. The method comprises measuring in advance no-load current values of a drive motor, with a handpiece known as being in usable condition and a handpiece known as insufficiently maintained respectively connected thereto and operated in no-load condition, storing as reference data the no-load current values of the drive motor together with associated data relating to degree of maintenance, measuring a no-load current value of the drive motor with a dental handpiece to be checked connected thereto and operated in no-load condition, and determining whether the handpiece checked is usable, requires maintenance, or is unusable, by comparing the measured no-load current value with the reference data.
Provided is a sterilizer for medical instruments including a sterilization chamber defining an inner space configured for containing medical instruments and pressurized sterilization fluid; a hatch configured to hermetically seal the inner space; a closure system configured to firmly constrain the hatch to the sterilization chamber; at least one discharge valve configured for placing the inner space in connection for fluid passage with an outside space; and a control unit configured to control the discharge valve.
Provided is a steam sterilizer for medical instruments including a feeding system configured to feed a sterilization chamber and including at least one main tank for containing a sterilization fluid; an evacuation system configured to evacuate a discharge fluid from the sterilization chamber; and a purification system configured to draw one of the fluids out of one of the systems and to introduce it into the main tank, and including cleaning means configured to filter the fluid.
Dental and surgical machines and apparatus, namely, dental handpiece, surgical handpiece, air motor for handpiece, micromotor for handpiece, air scaler, ultrasonic scaler, ultrasonic cutter, instrument for measuring root canal length.
Autoclave for sterilisation (1) comprising a sterilisation chamber (2), a tank (3) of water, connection means (4) suitable to connect the tank (3) to the sterilisation chamber (2) in a fluidic through connection, heating means (2a) suitable to heat and to pressurise the water and to supply the sterilisation chamber (2) to perform sterilisation cycles, in which the tank (3) includes a filter (30), the tank (3) is in addition divided into a high potential portion (3a) and a low potential portion (3b), said portions being in reciprocal fluidic through connection through the filter (30), the filter (30) comprising a plurality of filtering layers (31) including distribution layers (34) suitable to slow down and improve the distribution of the water along the entire area of the layers (31) and active layers (33) suitable to perform purification functions of the water.
This dental handpiece nozzle comprises a nozzle main body and a connection section connected to a handpiece main body, and in the nozzle main body, a notch having an approximately rectangular cross section is formed from the front surface to the two side surfaces at the vicinity of the tip, forming an upstream surface and a downstream surface. The nozzle is provided separately with: a duct for passing a mixture; the discharge opening of the duct; a duct for passing water; and the discharge opening of the duct. The mixture duct extends from the connection section to the vicinity of the tip along the front surface of the nozzle main body interior, and the mixture discharge opening opens to the upstream surface. A guide that receives the mixture discharged from the mixture discharge opening and guides same towards the outside of the notch is provided to the downstream surface. By means of the nozzle, during subgingival treatment, a mixture is suitably blown at the site of treatment, it is possible for a mixture discharge subgingivally to be efficiently released supergingivally, and thus operability is improved.
This dental handpiece is provided with a handpiece main body, which has a mixture transfer pathway for transferring a mixture of air and powder, and a nozzle that is connected to the handpiece main body and jets the mixture from the mixture transfer pathway. Dental treatment is performed by blowing the mixture at tooth surfaces. The nozzle is rotatably connected to the handpiece main body by means of a rotating mechanism therebetween. By means of such a nozzle connection structure, during subgingival treatment, when inserting the tip of the nozzle subgingivally and moving the nozzle along the tooth surface, it is not necessary to greatly move the entire handpiece main body greatly in the left-right direction, and operability of dental treatment is improved.
A handpiece attaching/detaching device for attaching and detaching a dental handpiece to and from a handpiece mounting terminal of a dental handpiece cleaning device comprises: a ring member which is fixed to the handpiece mounting terminal and is used to hold a connection end portion of the handpiece; a function ring which slidably fits to the outside of the ring member; and an operation lever which is coupled to the function ring. The ring member has a grooved portion that includes slotted grooves which are cut from one end. The handpiece can be attached to or detached from the ring member by operating the operation lever so as to slide the function ring and expand or reduce the inner diameter of the grooved portion of the ring member. The dental handpiece cleaning device comprises a handpiece mounting terminal which is provided with such a handpiece attaching/detaching device.
Provided is an autoclave for medical-dental instruments and the like, including a sterilization chamber, an accumulator, a main channel connecting the sterilization chamber and the accumulator in circuit and bringing them into communication for fluid passage, a pump adapted to move the fluid inside the main channel, in which the accumulator includes a volume of a material having hygroscopic properties resulting from an exothermic reaction and vice versa.
A drive motor of a dental handpiece for driving a cutting tool of the handpiece is provided that is connected to the dental handpiece on its front end side and includes a cylindrical casing; a rotor unit, which is rotatably supported inside the casing and outputs a driving force; a stator unit provided around the rotor unit inside the casing; and an air path which causes cooling air supplied from the rear end side of the drive motor to pass through an airtight cooling room circumferentially extending between the stator unit and the casing, and to be discharged from the rear end side.
A61C 1/06 - Dental machines for boring or cutting characterised by the drive of the dental tools with electric drive
H02K 9/02 - Arrangements for cooling or ventilating by ambient air flowing through the machine
H02K 9/16 - Arrangements for cooling or ventilating wherein gaseous cooling medium circulates between the machine casing and a surrounding mantle wherein the cooling medium circulates through ducts or tubes within the casing
A61C 1/05 - Dental machines for boring or cutting characterised by the drive of the dental tools with turbine drive
09 - Scientific and electric apparatus and instruments
10 - Medical apparatus and instruments
Goods & Services
(1) Dental instruments; medical and dental apparatus and instruments excluding those intended for coronary and peripheral arteries application, namely, air motors for handpiece, air motors for surgical dental handpieces, air motors for surgical handpieces, air scaler, apex locators for endodontic use, bone cutting and resecting instruments for surgical use, cleaning and lubricating apparatus for dental handpieces, dental air scalers, dental instruments for measuring root canal length, dental handpiece, dental handpiece and power controller sold as a unit therewith, dental scalers, dental suction instruments, micromotors for handpiece, micromotors for dental handpieces, micromotors for surgical dental handpieces, micromotors for surgical handpieces, motor controllers for dental handpieces, scaler tips, surgical dental handpieces, surgical handpiece, surgical handpiece and power controller sold as a unit therewith, ultrasonic cutter, ultrasonic scaler.
