A catheter simulator includes: a container filled with a liquid; a heart model installed in the container in a state of being filled with a liquid, the heart model including outer walls and a septum; and a pulsatile pump connected to the heart model and generating a pulsatile flow in the internal space of the heart model, wherein in the heart model, an area to be changed by the pulsatile flow is thin-walled compared to other areas, and a space including the thin-walled area is formed in a substantially closed shape.
Provided is a catheter simulator capable of reproducing, in a heart model held in a liquid in a container, a blood flow and cardiac pulsations in a living body. The catheter simulator comprises: a container 10 filled with a liquid; an elastic heart model 100 which is installed in the container 10 in a state of being filled with the liquid and in which a ventricle and a large blood vessel continuous with the ventricle are provided; and a pulsation pump 50 which is connected to the large blood vessel of the heart model 100 or is connected a space continuous with the large blood vessel, and which generates negative pressure in the ventricle by suctioning the liquid.
Provided is a catheter simulator capable of achieving an improved procedure in a catheter procedure for a tissue responsible for a heart structure. This catheter simulator comprises: a container 10 into which a liquid is filled; a heart model 100 which is installed in the container 10 in a state of being filled with the liquid, and is provided with an outer wall and a septum; and a pulsation pump 50 which is connected to the heart model 100 and generates a pulsatile flow in an internal space of the heart model. The heart model 100 is characterized in that a portion to be varied by the pulsatile flow is thinned compared with the other portions, and a space including the thinned portion is formed in a substantially closed state.
An organ model for a medical device, which is held in a container in a state of being filled with a liquid and into which a catheter can be inserted through insertion parts provided on the container, comprise a soft member including a holding part that is held in the container, and a hard member including a plate-shaped part installed on the inner surface of the container and being integrated with the soft member, wherein the hard member is not fixed to the container, is attachable to or detachable from the soft member, and is positioned by being connected to the soft member.
A heart model includes a main body formed from an elastic material and including a left atrium and a left ventricle, with a mitral valve installed at a boundary portion between the left atrium and the left ventricle; and a vena cava provided in the main body, wherein the mitral valve includes an anterior leaflet and a posterior leaflet, both the leaflets extending to the left ventricle side and capable of opening and closing, and the anterior leaflet and the posterior leaflet are each provided on a tip side with a plurality of string-shaped members extending into the left ventricle.
A catheter simulator includes a container capable of accommodating a liquid in an accommodation part surrounded by side walls and a bottom part; a cerebral blood vessel model held in the container in a state of accommodating a liquid; a pump connected to the container and circulating the liquid inside the cerebral blood vessel model held therein; and a holder provided on the side walls of the container and the cerebral blood vessel model and holding the cerebral blood vessel model in a state of having the container filled with the liquid, wherein the holder includes a first holding part holding an end of an ascending aorta of the cerebral blood vessel model, and a second holding part holding an end of a descending aorta of the cerebral blood vessel model.
Provided is an organ model for medical devices, with which exercises of catheter manipulation, endoscope manipulation, etc. can be stably performed without deformation or impairment of the organ model. The present invention is an organ model 100 for medical devices, wherein the organ model 100 is held in a state where a container 10 is filled with liquid; and a catheter can be inserted into the organ model 100 through an insertion parts 11a', 12a' provided to the container 10. The organ model 100 is characterized by comprising a soft member 100A that is provided with a held part held by the container 10, and a hard member 100B that is provided with a plate-shaped part 130 disposed on an inner surface of the container 10 and that can be integrated with the soft member 100A, the hard member 100B not being fixed to the container 10, being attachable to and detachable from the soft member 100A, and being positioned through connection with the soft member 100A.
A heart model 100 according to the present invention is formed from an elastic material and is provided with: a body 101 which is equipped with a left atrium 112 and a left ventricle 113 and in which a mitral valve 140 is installed at a boundary part between the left atrium 112 and the left ventricle 113; and an inferior vena cava 102A provided to the body. The mitral valve 140 is characterized by having an anterior leaflet 141 and a posterior leaflet 142 that are openable/closable and that extend to the left ventricle 113 side, and is characterized in that the end edges of the anterior leaflet and the posterior leaflet are each provided with a plurality of string-like members 150 extending into the left ventricle 113.
The present invention is a heart model that is used at the time of performing a simulation of an operation for installing a leadless pacemaker in the inner part or a simulation of a myocardial examination method of collecting myocardial tissue, and is formed by means of a material having elasticity. The heart model has a main body having a right atrium, a right ventricle, a left atrium, and a left ventricle in the inner part; an inferior vena cava provided in the main body and allowing insertion therethrough of a catheter holding a leadless pacemaker; and a holder detachably provided inside the main body and including a flexible part capable of locking a locking part of a leadless pacemaker.
[Problem] To provide a catheter simulator which, with a simple configuration, enables improvement of catheter techniques for brain disease. [Solution] A catheter simulator comprises: a vessel 10; a cerebrovascular model 100 retained in a state of accommodating a liquid within the vessel; and a retaining means that is provided to a side wall of the vessel and to the cerebrovascular model, and that retains the cerebrovascular model in a liquid-filled state in the vessel. The invention is characterized in that: the retaining means is provided with a first retention unit 21 for retaining an end of an ascending aorta 101a of the cerebrovascular model, and a second retention unit 22 for retaining an end of a descending aorta 101 b of the cerebrovascular model; the first retention unit 21 is provided with a liquid inlet for introducing the liquid into the cerebrovascular model; the second retention unit 22 is provided with a catheter inlet for introducing a catheter into the cerebrovascular model; and openings 121, 122 for controlling the balance of liquid circulating inside the cerebrovascular model are formed in an outer shell 100A constituting the cerebrovascular model.
The present invention is a heart model 100 used when performing a simulation of an operation for installing a leadless pacemaker or of a heart muscle inspection method for sampling heart muscle tissue, and is formed from an elastic material. The heart model 100 has: a main unit 100A having in the interior thereof a right atrium, a right ventricle, a left atrium, and a left ventricle; an inferior vena cava 102 provided in the main unit, into which a catheter holding the leadless pacemaker can be inserted; and a holder 200 removably installed inside the main unit 100A, the holder 200 being provided with a flexible section in which a latching part of the leadless pacemaker can be latched.
A heart model is retained in a container for a catheter simulator. The container includes an accommodating unit for accommodating a liquid, having side walls and a bottom surface, a connection unit attached to one of the side walls and retaining the heart model, and an installation part provided on one of the side walls. The installation part is configured to insert a catheter from an outside of the container into the simulated blood vessel of the heart model. The connection unit includes a holding protrusion protruding inside the accommodating unit, and a communicating hole. A front end of the holding protrusion is open so that the heart model is detachable from and reattachable to the holding protrusion by inserting and extracting a terminal of the heart model.
A61B 90/00 - Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups , e.g. for luxation treatment or for protecting wound edges
G09B 23/28 - Models for scientific, medical, or mathematical purposes, e.g. full-sized device for demonstration purposes for medicine
G09B 23/34 - Anatomical models with removable parts
An imaging method for a catheter having a heart model, the heart model being installed in a container in a state of having the container filled with a liquid, and being provided with coronary arteries and an aorta. The imaging method includes causing a chemical reaction between an injection agent injected into the coronary arteries through a catheter, and the liquid in the container, and changing the color of the injection agent to the same color as that of the liquid.
An organ model for a catheter simulator is formed from elastic materials, and a heart model for a catheter simulator includes a main body of heart and coronary arteries laid along the surface of the main body of heart, in which a portion of the coronary arteries is attachable and detachable.
Provided is an organ model for a catheter and/or simulator, the model formed of a resilient material. A cardiac model 30 for a catheter and/or simulator is characterized by: including a heart body 30A and a coronary artery 33 along the surface of the heart body; and a portion of the coronary artery (coronary artery part 40) being removable.
A container for a catheter simulator includes an accommodating unit for accommodating a liquid, the accommodating unit being defined by side walls and a bottom face. On the side walls, there are formed connection units capable of retaining any one of the heart models selected from a four-chamber heart model, a coronary artery model, and a Transcatheter Aortic Valve Implantation model, the heart model being installed in the accommodating unit in a state of having the accommodating unit filled with a liquid; and installation parts for inserting a catheter from the outside of the container into simulated blood vessels of the heart model.
A61B 90/00 - Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups , e.g. for luxation treatment or for protecting wound edges
G09B 23/28 - Models for scientific, medical, or mathematical purposes, e.g. full-sized device for demonstration purposes for medicine
G09B 23/34 - Anatomical models with removable parts
A catheter simulator (10) of the invention has a container (20) filled with a liquid; an elastic heart model (30) installed in a floating state in the liquid with which the container (20) is filled; and a pump (50) connected to the heart model (30). The pump (50) is connected to an apex section of the heart model and produces a pulsatile flow from the apex section toward an aorta. Coronary arteries (33) provided on the surface of a main body (30A) of the heart model (30), pulsate together with the main body as a result of the pulsatile flow flowing from the pump (50).
A pulsatile flow generating pump for a catheter simulator, which makes it possible to conveniently perform catheter operation training is provided.
a), through which a liquid from the outside is sucked into the cylinder; and a control unit 70 for controlling the rotation of the driving motor 15. The control unit 70 controls the driving motor 15 so as to output pulsatile flows at a rate of 20 times to 200 times per minute.
G09B 23/28 - Models for scientific, medical, or mathematical purposes, e.g. full-sized device for demonstration purposes for medicine
F04B 49/20 - Control of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for in, or of interest apart from, groups by changing the driving speed
F04B 17/03 - Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
F04B 19/22 - Other positive-displacement pumps of reciprocating-piston type
F04B 49/22 - Control of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for in, or of interest apart from, groups by means of valves
F04B 53/16 - CasingsCylindersCylinder liners or headsFluid connections
F04B 53/14 - Pistons, piston-rods or piston-rod connections
A container 10 for a catheter simulator prescribes an accommodating part 10a for accommodating a liquid by side walls 11 - 14 and a bottom surface 15. The side walls have formed thereon connection parts 11a, 11c capable of holding any heart model, that is, a four chamber model, a coronary artery model, or a TAVI model, which is disposed with the accommodating part 10a filled with liquid, and introductory parts 11d, 12a, 13a for inserting a catheter from the outside of the container into simulated blood vessels that are formed integrally with the heart model.
G09B 9/00 - Simulators for teaching or training purposes
A61B 90/00 - Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups , e.g. for luxation treatment or for protecting wound edges
The catheter simulator 10 according to the present invention has: a container 20 filled with a liquid; an elastic heart model 30 installed in a state of floating in the liquid with which the container 20 is filled; and a pump 50 connected to the heart model 30. The pump 50 is connected to an apex section of the heart model and generates a pulsatile flow from the apex section toward an aorta. A coronary artery 33 provided on the surface of a body 30A of the heart model 30 pulsates together with the body by the pulsatile flow flowing in from the pump 50.
This method for producing an organ model has: an outer form molding step for molding an outer form (120), which has a region (16) to become a hollow section and a region (17) to become a configuring wall of an organ model, by curing a shaping resin (12), which is at the same time supported by a support resin (13), by radiating curing light at the shaping resin, which is photocurable, and the support resin, which is photocurable and supports the shaping resin, on the basis of imaging data of a human organ; a shell mold molding step for eliminating the support resin (13) from the outer form (120), forming a shell mold (10) having an outer shell (12A) that covers the outer surface of the organ model, and an inner shell (12B) that covers the inner surface of the organ model; a filling step for filling the space (15) between the outer shell (12A) and inner shell (12B) of the shell mold (10) with a casting material (20) having flexibility; and an elimination step for eliminating the shell mold (10) that has been filled with the casting material.
