Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: The present disclosure relates to a method for storage or transportation of graphene oxide. The method for storage or transportation of graphene oxide comprises the steps of: carrying out wet spinning of a graphene oxide spinning solution to a coagulating bath to obtain graphene oxide pellets; drying the obtained graphene oxide pellets; storing or transporting the dried graphene oxide pellets; and redispersing the stored or transported graphene oxide pellets.

Abstract: The present disclosure relates to a method for storage or transportation of graphene oxide. The method for storage or transportation of graphene oxide comprises the steps of: carrying out wet spinning of a graphene oxide spinning solution to a coagulating bath to obtain graphene oxide pellets; drying the obtained graphene oxide pellets; storing or transporting the dried graphene oxide pellets; and redispersing the stored or transported graphene oxide pellets.

Abstract: 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).

Abstract: A pulsatile flow generating pump for a catheter simulator, which makes it possible to conveniently perform catheter operation training is provided. The pump (10) includes a cylinder (13) provided inside with a piston performing a reciprocating motion; a driving motor (15) causing the piston to perform a reciprocating motion; a link mechanism (19) converting the rotational motion of the driving motor (15) to the reciprocating motion of the piston; an extrusion port (86b), through which a liquid inside the cylinder is extruded to the outside by the piston; a suction port (86a), 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.

Abstract: A pulsatile flow generating pump for a catheter simulator, which makes it possible to conveniently perform catheter operation training is provided. The pump (10) includes a cylinder (13) provided inside with a piston performing a reciprocating motion; a driving motor (15) causing the piston to perform a reciprocating motion; a link mechanism (19) converting the rotational motion of the driving motor (15) to the reciprocating motion of the piston; an extrusion port (86b), through which a liquid inside the cylinder is extruded to the outside by the piston; a suction port (86a), 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.

Abstract: The present invention provides a method of producing an organ model comprising; an outer-shape body forming step in which an outer-shape body 120 having regions 16, 17 to be a hollow portion and a structural wall of the organ model respectively is formed by irradiating curing light and cure the photocurable mold resin 12 and support resin 13 supporting the mold resin based on photographed data of a human organ, a mold shell forming step in which a mold shell 10 having outer and inner shell portions 12A, 12B covering outer and inner surfaces of the organ model respectively is formed by removing the support resin 13 from the outer-shape body 120, a filling step in which a space 15 between the outer and inner shell portions 12A, 12B is filled with a flexible injection molding material 20, and a removing step for removing the mold shell 10.