Abstract: [Problem to be Solved by the Invention] To provide an artificial tissue model that can be more advantageously used in surgical technique training compared to previous artificial tissues, as well as a method of fabricating the same. [Solution] An artificial organ model for surgical technique training comprising two or more fibrous layers 2, 3 layered and bonded to each other so as to be peelable by a surgical technique performed by a surgical technique trainee; the layered and bonded two or more fibrous layers 2, 3 as a whole being saturated with an electroconductive liquid or gel; and two adjacent fibrous layers out of the two or more fibrous layers being formed from different materials or substances or in different colors so as to be recognizable as different membranes by the surgical technique trainee.

Abstract: The present method is a method for executing a computational fluid analysis on a blood flow at a blood vessel region to be analyzed, and displaying the analysis results, comprising the steps of: obtaining, by a computer, a vascular diameter (d) of an inlet and/or outlet of a blood vessel region to be analyzed from medical images which include said blood vessel region; obtaining, by the computer, an estimated flow rate (Q) at the inlet and/or outlet based on the vascular diameter (d); and applying, by the computer, the estimated flow rate (Q) to a blood flow characteristics pattern of said blood vessel region and outputting blood flow characteristics at the inlet and/or outlet of the analysis object site.

Abstract: This system is a system for analyzing blood flow of a target vascular site by means of simulation, having a fluid analysis unit, by a computer, for determining state quantities of blood flow at each position of a lumen of the target vascular site by means of computation by imposing computational conditions including boundary conditions relating to the blood flow to three-dimensional shape data of the target vascular site; a three-dimensional shape modification unit for modifying the three dimensional shape data by simulating a surgical treatment method and for outputting the three-dimensional shape data after the modification; and a comparison display unit for displaying computed results of before and after the modification of the three-dimensional shape for comparing the results, by causing the fluid analysis unit to re-compute the state quantities based on the three-dimensional shape data after the modification.

Abstract: This system is a computer-based system for analyzing a blood flow at a target vascular site of a subject by means of a computer simulation, having a three-dimensional shape extraction unit, by a computer, for reading a captured image at the target vascular site and generating three-dimensional data representing a shape of a lumen of the target vascular site; a fluid dynamics analysis unit, by a computer, for determining state quantities (pressure and flow velocity) of blood flow at each position of the lumen of the target vascular site by means of computation by imposing boundary conditions relating to blood flow to the three-dimensional shape data; a blood flow characteristic determination unit for determining, from the state quantities of the blood flow determined by the fluid dynamics analysis unit, a wall shear stress vector at each position of the lumen wall surface of the target vascular site, determining relative relationship between a direction of the wall shear stress vector at a specific wall surfac

Abstract: This system is a system for analyzing blood flow which imposes a boundary condition relating to the blood flow to three dimensional shape data of a target vascular site of a subject and divides a lumen of the target vascular site into meshes for obtaining state quantities of the blood flow at each mesh position by means of computation, having: a labeling unit, by a computer, for reading out the three dimensional shape data on the lumen of the target vascular site, and labeling a plurality of vascular elements included in the target vascular based on a size of the cross-sectional area of each of the vascular elements; wherein, the computation of the state quantities is carried out by varying a level of mesh detail for each vascular element based on the labeling according to the size of the cross-sectional area.

Abstract: A surgical operation training device 13 comprises a simulation body 83 subjected to a predetermined treatment during surgical operation training, a holder 84 for holding the simulation body 83 from below, a support 85 for supporting the holder 84 workably, a wire 86 for coupling the holder 84 with the support 85, and a control unit 71 for controlling operation of the holder 84. The wire 86 is formed of a shape memory material which can contract from an original shape when a current flows through the wire. The control unit 71 comprises a drive signal generating means 114 for supplying a current to the wire 86 at a predetermined timing and for performing operation control on the holder 84 with a change in the shape of the wire 86 by varying the supply state of current to the wire 86.

Abstract: This system is a computer-based system for simulating an effect of a specific surgical treatment based on three-dimensional data of a shape of a target vascular site of a subject, comprising: a surgical treatment receiving unit, by a computer, for displaying the three-dimensional data of a shape of a target vascular site on a computer display screen, and receiving a specification of a lesion on display and a selection of a surgical treatment for the lesion, a modification method storage unit, by a computer, for pre-storing selectable surgical treatments and methods for modifying the three-dimensional data for respective surgical treatments in memory, and a modified three-dimensional data output unit, by a computer, for reading out a modification method from the modification method storage unit according to the selection of a surgical treatment, modifying the three-dimensional data related to the specification of the lesion by the selected method, and outputting the modified three-dimensional data.

Abstract: This system is a system for analyzing blood flow of a target vascular site by means of simulation, having a fluid analysis unit, by a computer, for determining state quantities of blood flow at each position of a lumen of the target vascular site by means of computation by imposing computational conditions including boundary conditions relating to the blood flow to three-dimensional shape data of the target vascular site; a three-dimensional shape modification unit for modifying the three dimensional shape data by simulating a surgical treatment method and for outputting the three-dimensional shape data after the modification; and a comparison display unit for displaying computed results of before and after the modification of the three-dimensional shape for comparing the results, by causing the fluid analysis unit to re-compute the state quantities based on the three-dimensional shape data after the modification.

Abstract: A surgical operation training device 13 comprises a simulation body 83 subjected to a predetermined treatment during surgical operation training, a holder 84 for holding the simulation body 83 from below, a support 85 for supporting the holder 84 workably, a wire 86 for coupling the holder 84 with the support 85, and a control unit 71 for controlling operation of the holder 84. The wire 86 is formed of a shape memory material which can contract from an original shape when a current flows through the wire. The control unit 71 comprises a drive signal generating means 114 for supplying a current to the wire 86 at a predetermined timing and for performing operation control on the holder 84 with a change in the shape of the wire 86 by varying the supply state of current to the wire 86.

Abstract: This system is a system for analyzing blood flow which imposes a boundary condition relating to the blood flow to three dimensional shape data of a target vascular site of a subject and divides a lumen of the target vascular site into meshes for obtaining state quantities of the blood flow at each mesh position by means of computation, having: a labeling unit, by a computer, for reading out the three dimensional shape data on the lumen of the target vascular site, and labeling a plurality of vascular elements included in the target vascular based on a size of the cross-sectional area of each of the vascular elements; wherein, the computation of the state quantities is carried out by varying a level of mesh detail for each vascular element based on the labeling according to the size of the cross-sectional area.

Abstract: A system for evaluating training 1 comprises a pulsating flow generating unit 11 for imparting a pulsating flow to a designated fluid, a coronary artery flow generating unit 12 that branches off from that pulsating flow generating unit 11 and by which a flow condition of that pulsating flow can be converted to generate a coronary artery flow, and a surgery training unit 13 provided between the pulsating flow generating unit 11 and the coronary artery flow generating unit 12 and that operates to enable coronary artery bypass surgery training under pulsation. This system for evaluating training 1 has a circuit configured to enable the coronary artery flow fluid generated by the coronary artery flow generating unit 12 to pass through a simulated blood vessel that has been subjected to a designated treatment in training using the surgery training unit 13.

Abstract: This system is a computer-based system for analyzing a blood flow at a target vascular site of a subject by means of a computer simulation, having a three-dimensional shape extraction unit, by a computer, for reading a captured image at the target vascular site and generating three-dimensional data representing a shape of a lumen of the target vascular site; a fluid dynamics analysis unit, by a computer, for determining state quantities (pressure and flow velocity) of blood flow at each position of the lumen of the target vascular site by means of computation by imposing boundary conditions relating to blood flow to the three-dimensional shape data; a blood flow characteristic determination unit for determining, from the state quantities of the blood flow determined by the fluid dynamics analysis unit, a wall shear stress vector at each position of the lumen wall surface of the target vascular site, determining relative relationship between a direction of the wall shear stress vector at a specific wall surfac

Abstract: A blood vessel model for medical training not deforming with time and approximated to a real blood vessel without using any other tool when the blood vessel wall of the simulated blood vessel is incised or cut off. The blood vessel model 10 includes a simulated blood vessel 11 simulating a blood vessel and artificially fabricated and a base 12 supporting the simulated blood vessel 11. The simulated blood vessel 11 has a circumferentially exposed part and the other part buried in the base 12. The base 12 has a jointed part 24 disposed in a position below the simulated blood vessel 11 and formed by joining forming edges 26A, 26A of a cutout 26 extending along the simulated blood vessel 11 to impart a tensile stress in the diameter-increasing direction to the simulated blood vessel 11.