Vascular model device

Abstract

This vascular model device comprises a body part having a first main surface, a second main surface, and a side surface sandwiched between the first main surface and the second main surface, the body part having formed therein a lumen simulating a vascular part into which a long medical device can be inserted. The vascular part has a lesion placement part in which an opening connecting the first main surface and the lumen is formed.

Description

Vascular model device

[0001] The present disclosure relates to a vascular model device.

[0002] Training devices capable of simulating treatment and examination procedures using medical devices are known. For example, Patent Document 1 describes a PTCA trainer including a flat plate having a path formed of a recess into which a long object is inserted on its surface, a transparent plate covering the surface of the flat plate, and a port for inserting a long object into the path.

[0003] Japanese Patent Application Laid-Open No. 2001-343891

[0004] In an actual procedure, for example, in a procedure for opening a CTO occurring in a coronary artery, an operator may approach a lesion occurring in a blood vessel using a medical device. The medical device refers to any device such as a catheter, a guide wire, etc. CTO is an abbreviation for Chronic Total Occlusion, chronic total occlusion. In this regard, in the PTCA trainer described in Patent Document 1, since a blood vessel is simulated by the space between the flat plate in which the recess is formed and the transparent plate, there is a problem that it is inferior in usability, for example, it takes time to arrange simulated lesions. Such problems are common not only to training devices simulating blood vessels but also to training devices simulating lymphatic vessels.

[0005] The present disclosure has been made to solve at least a part of the above-described problems and can be realized in the following forms.

[0006] According to one aspect of the present disclosure, a vascular model device is provided. This vascular model device is a main body having a first main surface, a second main surface, and a side surface sandwiched between the first main surface and the second main surface, and includes a main body in which a lumen simulating a vascular part into which a long medical device can be inserted is formed, and the vascular part has a lesion arrangement part in which an opening connecting the first main surface and the lumen is formed.

[0007] This is an explanatory diagram illustrating the configuration of a vascular model device. This is a cross-sectional view of the vascular model device along line A-A in Figure 1. This is an explanatory diagram illustrating the configuration of the housing section. This is an explanatory diagram illustrating the configuration of the main body section. This is a cross-sectional view of the vascular model device along line B-B in Figure 1. This is a diagram showing the external appearance of the main body section as seen from the direction indicated by the white arrow in Figure 4. This is an enlarged view of the vicinity of the fourth diagonal branch model. This is an explanatory diagram about the lesion placement section. This is an explanatory diagram showing a portion of the cross-sectional view of the main body section, specifically the vicinity of the device placement section. This is an explanatory diagram illustrating the configuration of an additional section. This is a diagram showing the vascular model device in use. This is an explanatory diagram illustrating the configuration of the main body section of the second embodiment. This is an explanatory diagram illustrating the configuration of the main body section of the third embodiment. This is an explanatory diagram illustrating the configuration of the main body section of the fourth embodiment. This is an explanatory diagram illustrating the configuration of the vascular model device of the fifth embodiment. This is an explanatory diagram illustrating the configuration of the vascular model device of the sixth embodiment. This is an enlarged view of the vicinity of the fourth diagonal branch model in the main body section of the seventh embodiment. This is an explanatory diagram illustrating the configuration of the main body section of the eighth embodiment.

[0008] <First Embodiment> Figure 1 is an explanatory diagram illustrating an example of the vascular model device 1. The vascular model device 1 of this embodiment is a training device used to simulate treatment and examination procedures using medical devices. Treatment and examination procedures using medical devices are also called percutaneous interventions. Any device can be used as a medical device, such as a catheter or guidewire. The vascular model device 1 of this embodiment comprises a main body 10, a housing 20, and an additional part 30.

[0009] Figure 1 includes parts where the relative size ratio of each component differs from reality, and parts where each component is exaggerated, for the sake of explanation. Figure 1 illustrates mutually orthogonal XYZ axes. The X-axis corresponds to the lateral width direction of the main body 10, housing 20, and extension 30. The Y-axis corresponds to the vertical width direction of the main body 10, housing 20, and extension 30. The Z-axis corresponds to the height direction of the main body 10, housing 20, and extension 30. The lower side of Figure 1, i.e., the -Y axis direction, is called the "tip side" of the main body 10, housing 20, and extension 30. The upper side of Figure 1, i.e., the +Y axis direction, is called the "base side" of the main body 10, housing 20, and extension 30. For each component, one end located on the tip side is called the "tip," and the other end located on the base side is called the "base." The tip and its vicinity are called the "tip portion," and the base portion and its vicinity are called the "base portion." The tip end is the side furthest from the insertion site of the medical device. When the main body 10 includes a cardiovascular model, the tip end is the side closer to the apex of the heart. The proximal end is the side closest to the insertion site of the medical device. When the main body 10 includes a cardiovascular model, the proximal end is the side closer to the ascending aorta. These points are also common in Figure 2 and beyond. In this embodiment, "same" and "equal" do not mean strictly identical, but rather allow for differences due to manufacturing errors, etc. "Constant" is synonymous with "approximately constant," meaning that it is approximately constant while allowing for variations due to manufacturing errors, etc.

[0010] Figure 2 is a cross-sectional view of the vascular model device 1 along the line A-A in Figure 1. Figure 3 is an explanatory diagram illustrating an example of the configuration of the housing section 20. The housing section 20 is a housing for housing the main body section 10 and the additional section 30. As shown in Figures 2 and 3, the housing section 20 has a mounting surface 21, side walls 22, and a lid 28. The housing section 20 can be formed from a well-known resin material, such as acrylic resin. In this embodiment, the main body section 10 includes a cardiovascular model.

[0011] In Figure 3, the mounting surface 21 of the housing section 20 is represented by dot hatching. The mounting surface 21 is the surface located on the opposite side from the workbench when the housing section 20 is placed on a workbench or the like. The mounting surface 21 is the surface on which the main body section 10 and the add-on section 30 are placed. The mounting surface 21 has a first mounting surface 211, a second mounting surface 212, a third mounting surface 213, and a fourth mounting surface 214. The first mounting surface 211 and the second mounting surface 212 are rectangular surfaces of the same height. The first mounting surface 211 and the second mounting surface 212 support the main body section 10 by contacting the first main surface 11 of the main body section 10 placed in the housing section 20. The third mounting surface 213 is a rectangular surface that separates the first mounting surface 211 and the second mounting surface 212. The third mounting surface 213 is located lower than the first mounting surface 211 and the second mounting surface 212. In other words, the third mounting surface 213 forms a groove in which a portion of the mounting surface 21 is recessed. As shown in Figure 5, which will be described later, when the main body 10 is placed in the housing section 20, the third mounting surface 213 forms a flow path SP between itself and the first main surface 11 of the main body 10. The fourth mounting surface 214 is a rectangular surface located at the end of the mounting surface 21. The fourth mounting surface 214 is located higher than the first mounting surface 211 and the second mounting surface 212. The fourth mounting surface 214 supports the additional part 30 by contacting one of its main surfaces, which is placed in the housing section 20. The area of ​​the mounting surface 21 of the housing section 20 is larger than the area of ​​the first main surface 11 of the main body 10, which will be described later. The area of ​​the mounting surface 21 of the housing section 20 refers to the sum of the areas of the first mounting surface 211, the second mounting surface 212, the third mounting surface 213, and the fourth mounting surface 214.

[0012] The portion of the storage section 20 having a rectangular tray shape is also called the first section 201. In the first section 201, the side wall 22 is provided on the periphery of the mounting surface 21. A first side hole 25 and a second side hole 26 are formed in the side wall 22 at a position corresponding to the tip of the third mounting surface 213. The first side hole 25 and the second side hole 26 are through holes that penetrate the side wall 22 in the Y-axis direction. The first side hole 25 and the second side hole 26 are at different positions in the X-axis direction. The first side hole 25 and the second side hole 26 have the same inner diameter. The first side hole 25 and the second side hole 26 may have different inner diameters. A Luer fitting is provided inside the first side hole 25. A Luer fitting is provided inside the second side hole 26. A Luer fitting is a member for attaching a valve to shut off liquid.

[0013] Of the housing section 20, the portion of the base end of the first section 201 that is raised in the +Y axis direction is also called the second section 202. In the second section 202, the side wall 22 is provided on the periphery and the inside of the second section 202 so as to form a U-shaped groove. The U-shaped groove is also called the aortic arch model 29. In Figure 3, the aortic arch model 29 of the housing section 20 is represented by diagonal hatching. The upstream section 291 of the aortic arch model 29 is located at a position corresponding to the base end of the third mounting surface 213. In the illustrated example, the width W29 of the upstream section 291 of the aortic arch model 29 is smaller than the width W213 of the base end of the third mounting surface 213. The widths W29 and W213 may be the same. The width W29 may be larger than the width W213. The downstream portion 292 of the aortic arch model 29 is located at a position corresponding to the proximal end of the ascending aorta model 101 when the main body 10 is installed in the housing 20 as shown in Figure 1. The lid 28 is a U-shaped plate-like member that can be fitted onto the aortic arch model 29. The lid 28 is transparent.

[0014] When using the vascular model device 1, the operator places the main body 10 and the add-on 30 on the mounting surface 21 of the housing 20, as shown in Figure 1. The operator stores a liquid W simulating blood inside the housing 20, as shown in Figure 11, which will be described later. The inside of the housing 20 refers to the space enclosed by the mounting surface 21 and the side wall 22. The operator inserts the medical device 90 from at least one of the first side hole 25 and the second side hole 26, as shown in Figure 1. As shown in Figures 3 and 5, the flow path SP between the third mounting surface 213 and the main body 10 is connected to the upstream 291 of the aortic arch model 29. As shown in Figures 1 and 3, the downstream 292 of the aortic arch model 29 is connected to the ascending aortic model 101 of the main body 10. Therefore, the operator can advance the medical device 90 inside the vascular model device 1 in the order of flow path SP, aortic arch model 29, and ascending aorta model 101. On the side wall 22, grooves 15 and 16 are formed on the surface facing the mounting surface 21. In other words, grooves 15 and 16 are formed on the surface of the side wall 22 in the -Z axis direction. The grooves 15 and 16 have different shapes from each other. Lesion models can be fitted into grooves 15 and 16.

[0015] Figure 4 is an explanatory diagram illustrating an example of the main body 10. In Figure 4, for ease of illustration, the vascular section 100 formed inside the main body 10 is drawn with a solid line and represented with dot hatching. Figure 5 is a cross-sectional view of the vascular model device 1 along the line B-B in Figure 1. Figure 6 is a diagram showing the external appearance of the main body 10 as seen from the direction indicated by the white arrow in Figure 4. The main body 10 is a model body having a vascular section 100 that simulates a blood vessel. The main body 10 is formed of an elastic material. "Elastic" means a property that exhibits at least one of rubber elasticity, which stretches and contracts like rubber, and entropy elasticity. Examples of elastic materials that can be used include silicone, synthetic rubber, natural rubber, urethane, PVA, hydrogel, and styrene. In this embodiment, the main body 10 is formed of transparent silicone. Therefore, the worker can easily form the vascular section 100 which has a complex shape, and the durability of the main body 10 can be improved. In the main body 10 of this embodiment, the inner circumferential surface of the vascular portion 100 is colored in an arbitrary color. This improves the visibility of the vascular portion 100.

[0016] As shown in Figures 4 and 5, the main body 10 is a flat plate having a first main surface 11, a second main surface 12, a first side surface 13, and a notch 14. The first main surface 11 is one of the six planes of the main body 10 that have a relatively large area. The second main surface 12 is the surface located on the opposite side of the main body 10. The second main surface 12 is the remaining one of the six planes of the main body 10 that have a relatively large area, similar to the first main surface 11. In this embodiment, the main body 10 is installed in the housing 20 with the first main surface 11 facing downwards. The first side surface 13 refers to the entire side surface connecting the first main surface 11 and the second main surface 12. In the illustrated example, the notch 14 is formed in three places on the main body 10: the right edge, the left edge, and the edge on the tip side. The right edge refers to the edge on the +X axis side as shown in Figure 4. The left edge refers to the edge on the -X axis side as shown in Figure 4. The notch 14 is a recess formed by removing a portion of the thick part of the main body 10.

[0017] A vascular section 100 is formed inside the main body 10. The vascular section 100 is a lumen that simulates a blood vessel into which a long medical device 90 can be inserted. In this embodiment, the vascular section 100 simulates a cardiovascular system. The vascular section 100 includes an ascending aorta model 101, a right coronary artery model 110, an anterior right ventricular branch model 114, a left main coronary artery 125, a left anterior descending branch model 120, a left circumflex branch model 130, a lesion placement section 140, first septal models 151 to third septal models 153, a peripheral branch model 154, first diagonal branch models 161 to fourth diagonal branch models 164, an obtuse branch model 165, and a device placement section 170.

[0018] The ascending aorta model 101 is the portion of the lumen formed in the main body 10 that simulates the shape of the ascending aorta. The proximal end of the ascending aorta model 101 opens to the first side surface 13 on the proximal end side of the main body 10. As a result, as shown in Figure 1, when the main body 10 is placed in the housing 20, the ascending aorta model 101 connects to the downstream 292 of the aortic arch model 29. In this embodiment, "opening" means that there is a hole connecting to the lumen when no external force is applied to the main body 10. Applying an external force to the main body 10 means that some force is applied to the main body 10 from the outside, for example, when the operator holds the main body 10 and bends it. The tip side of the right coronary artery model 110 is provided with a lesion placement section 140, which will be described later. The right coronary artery model 110 is the portion of the lumen formed in the main body 10 that simulates the shape of the right coronary artery. The right coronary artery model 110 branches off from the ascending aorta model 101. The anterior right ventricular branch model 114 is a portion of the lumen formed in the main body 10 that simulates the shape of the anterior right ventricular branch. The anterior right ventricular branch model 114 branches off from the right coronary artery model 110. The tip of the anterior right ventricular branch model 114 opens to the first side surface 13 at the proximal end side of the anterior right ventricular branch model 114, where the main body 10 and the attachment 30 are in contact. The portion of the anterior right ventricular branch model 114 that opens at its tip is also called the first opening 1142. As a result, as shown in Figure 1, when the main body 10 is placed in the housing 20, the anterior right ventricular branch model 114 of the main body 10 is connected to the first branch 301 of the attachment 30.

[0019] The left anterior descending branch model 120 is a portion of the lumen formed in the main body 10 that simulates the shape of the left anterior descending branch. The left anterior descending branch model 120 branches off from the left main coronary artery 125. A device placement section 170, which will be described later, is provided at the tip of the left anterior descending branch model 120. The left anterior descending branch model 120 corresponds to the "first vascular model". The left circumflex branch model 130 is a portion of the lumen formed in the main body 10 that simulates the shape of the left circumflex branch. The left circumflex branch model 130 branches off from the left main coronary artery 125. The tip of the left circumflex branch model 130 opens to the first side surface 13 at the tip of the main body 10.

[0020] The first septal model 151 is a part of the lumen formed in the main body 10 that simulates the shape of the collateral circulation formed between the right coronary artery and the left anterior descending branch, and is located at the most proximal end. Collateral circulation refers to a bypass vessel that is newly formed naturally to maintain blood circulation when a major blood vessel is blocked due to a circulatory disorder. The collateral circulation of the first septal model 151 includes multiple branches. One branch of the collateral circulation of the first septal model 151 connects to the distal end of the right coronary artery, and the other branch connects to the proximal end of the right coronary artery. The third septal model 153 is a part of the lumen formed in the main body 10 that simulates the shape of the collateral circulation formed between the right coronary artery and the left anterior descending branch, and is located at the most proximal end. The second septal model 152 is a collateral circulation pathway formed between the right coronary artery and the left anterior descending branch within the lumen formed in the main body 10, and it simulates the shape of the collateral circulation pathway formed between the first septal model 151 and the third septal model 153. The peripheral branch model 154 is a portion of the lumen formed in the main body 10 that simulates the shape of a peripheral branch.

[0021] The first diagonal branch model 161 is a diagonal branch in the lumen formed in the main body 10 that connects the left anterior descending branch model 120 and the left circumflex branch model 130, and simulates the shape of the diagonal branch formed at the proximal end. The second diagonal branch model 162 is a diagonal branch in the lumen formed in the main body 10 that connects the left anterior descending branch model 120 and the left circumflex branch model 130, and simulates the shape of the diagonal branch formed at the second position from the proximal end. The third diagonal branch model 163 is a diagonal branch in the lumen formed in the main body 10 that connects the left anterior descending branch model 120 and the left circumflex branch model 130, and simulates the shape of the diagonal branch formed at the third position from the proximal end. The obtuse angle branch model 165 is a part of the lumen formed in the main body 10 that simulates the shape of the obtuse angle branch. The obtuse-angled branch model 165 may have a shape that mimics a human blood vessel. Alternatively, the obtuse-angled branch model 165 may have a shape that does not mimic a human blood vessel, but a specific shape suitable for evaluating the performance of the medical device 90.

[0022] Figure 7 is an enlarged view of the vicinity of the fourth diagonal branch model 164. Figure 7 is an enlarged view of the connection point CP between the fourth diagonal branch model 164 and the left anterior descending branch model 120, when the main body 10 is projected from the second main surface 12 toward the first main surface 11. The fourth diagonal branch model 164 is a diagonal branch that connects the left anterior descending branch model 120 and the left circumflex branch model 130 within the lumen formed in the main body 10, and is the part that simulates the shape of the diagonal branch formed at the most apical end. The fourth diagonal branch model 164 corresponds to the "second vascular model". In the connection point CP in the projected view shown in Figure 7, the angle θ between the outer edge of the fourth diagonal branch model 164 and the outer edge of the left anterior descending branch model 120, on the side closer to the ascending aorta model 101, is acute. The angle θ can be, for example, 20 degrees or more and 30 degrees or less. The angle θ can be any size less than 90 degrees. The fourth diagonal branch model 164 corresponds to the "diagonal branch model". As shown in Figure 4, in the cardiac model, when two blood vessel models branch, these two blood vessel models often branch in a shape that spreads from the proximal end to the distal end. In this respect, as shown in Figures 7 and 7, at the connection point CP, the left anterior descending branch model 120 and the fourth diagonal branch model 164 branch in the opposite direction to the usual, that is, in a shape that spreads from the distal end to the proximal end.

[0023] Figure 8 is an explanatory diagram of the lesion placement area 140. The left side of Figure 8 shows an enlarged view of the vicinity of the lesion placement area 140. The callout on the right side of Figure 8 shows an excerpt of a portion of the cross-sectional view of the main body 10 along each line on the left side of Figure 8, specifically the vicinity of the lesion placement area 140. The lesion placement area 140 is the part of the lumen formed in the main body 10 for placing a simulated lesion. A simulated lesion is a lesion model that simulates a lesion that is the target of treatment by the medical device 90. The simulated lesion is created to resemble at least one of the shape and physical properties of an actual lesion that occurs in a human. As shown in the C2-C2 cross-sectional view, the lesion placement area 140 is the part in which an opening 141 connecting the first main surface 11 and the lumen is formed. In this embodiment, "opening" means a hole with a predetermined width that connects to the lumen when no external force is applied to the main body 10. Therefore, the first slits 111 to the third slits 131, which will be described later, do not correspond to openings. As shown in the enlarged view of Figure 8, the lesion placement section 140 has a constant inner diameter Φ140 from the tip 146 to the base 145. As shown in the cross-sectional view C2-C2, the lesion placement section 140 has a U-shaped lumen in the cross-section of the main body 10. Therefore, the inner diameter Φ140 of the lesion placement section 140 can also be said to be the width of the opening 141 of the lesion placement section 140.

[0024] The inner diameter Φ140 of the lesion placement section 140 is larger than the inner diameter Φ100 of the parts of the vascular section 100 other than the lesion placement section 140. The parts of the vascular section 100 other than the lesion placement section 140 refer to the right coronary artery model 110, the anterior right ventricular branch model 114, the left main coronary artery trunk 125, the left anterior descending branch model 120, the left circumflex branch model 130, the first septal models 151 to the third septal models 153, the peripheral branch model 154, the first diagonal branch models 161 to the fourth diagonal branch models 164, the obtuse branch model 165, and the device placement section 170. The operator can calculate the inner diameter Φ100, for example, as follows: The operator measures the inner diameter of any one location for each of the above-mentioned parts 101 to 170. The worker calculates the average value from the inner diameters of each part 101 to 170 that were measured. The worker sets the calculated average value as the inner diameter Φ100. Furthermore, in the main body part 10 of this embodiment, the inner diameter Φ140 of the lesion placement part 140 is larger than the inner diameters of each part other than the lesion placement part 140, excluding the ascending aorta model 101.

[0025] The portion of the vascular section 100 that connects to the tip of the lesion placement section 140 is called the tip-side connection section 113. In the enlarged view of Figure 8, the tip-side connection section 113 is enclosed by a dashed frame. The cross-sectional area of ​​the tip-side connection section 113 at any position from the tip 1132 to the proximal end 1131 is smaller than the cross-sectional area of ​​the lesion placement section 140 at any position from the tip 146 to the proximal end 145. The inner diameter Φ113 of the tip-side connection section 113 shown in the C3-C3 cross-sectional view gradually increases toward the lesion placement section 140. In other words, the inner diameter Φ113 of the tip-side connection section 113 gradually increases from the tip 1132 side toward the proximal end 1131 side. That is, the tip-side connection section 113 has a tapered shape that widens toward the lesion placement section 140.

[0026] The portion of the vascular portion 100 that is connected to the proximal end of the lesion placement portion 140 is called the proximal connection portion 112. In the enlarged view of Figure 8, the proximal connection portion 112 is enclosed by a dashed line frame. The cross-sectional area of ​​the proximal connection portion 112 at any position from the tip 1122 to the proximal end 1121 is smaller than the cross-sectional area of ​​the lesion placement portion 140 at any position from the tip 146 to the proximal end 145. The inner diameter Φ112 of the proximal connection portion 112 shown in the C1-C1 cross-sectional view gradually increases toward the lesion placement portion 140. In other words, the inner diameter Φ112 of the proximal connection portion 112 gradually decreases toward the proximal end 1121 from the tip 1122 side. That is, the proximal connection portion 112 has a tapered shape that widens toward the lesion placement portion 140. As shown in the enlarged view of Figure 8, the connection between the right coronary artery model 110 and the proximal end 1121 of the proximal connector 112 has a constricted shape with a relatively smaller inner diameter compared to other parts. This constricted shape at the connection between the right coronary artery model 110 and the proximal connector 112 allows the tip of the medical device 90, inserted from the ascending aorta model 101, to be guided toward the central axis of the lesion placement section 140.

[0027] Figure 9 is an explanatory diagram showing a portion of the cross-sectional view of the main body 10, specifically the area near the device placement section 170. The device placement section 170 is the part of the lumen formed in the main body 10 for placing an implantable device. An implantable device is a medical device different from the medical device 90, and is a medical device intended to be placed in a biological lumen. Examples of implantable devices include stents. The device placement section 170 has a constant inner diameter Φ170 from its tip to its base. The inner diameter Φ170 of the device placement section 170 shown in Figure 5 is larger than the inner diameter of the portion 129 of the vascular section 100 connected to the device placement section 170, as shown in Figure 4. As a result, there is a step difference between the tip and base of the device placement section 170 due to the difference in inner diameter.

[0028] As shown in Figure 4, a first slit 111 is formed in the right coronary artery model 110. The first slit 111 is a notch that connects the right coronary artery model 110 to the outside. The first slit 111 is provided on the first main surface 11 side of the main body portion 10. The proximal end of the first slit 111 is located at the proximal end of the main body portion 10. As shown in Figure 8, the tip of the first slit 111 is located at the tip 1122 of the proximal end connection portion 112. As shown in the enlarged view of Figure 8 and the cross-sectional view C1-C1, the first slit 111 is also provided at the location of the proximal end connection portion 112. As shown in the enlarged view of Figure 8 and the cross-sectional view C3-C3, the first slit 111 is not provided at the location of the tip connection portion 113.

[0029] A second slit 121 is formed in the left main coronary artery trunk 125 and the left anterior descending branch model 120. The second slit 121 is a notch that connects the left main coronary artery trunk 125 and the left anterior descending branch model 120 to the outside. The second slit 121 is provided on the first main surface 11 side of the main body 10. The proximal end of the second slit 121 is located at the proximal end of the main body 10. The tip of the second slit 121 is located at the tip of the main body 10. The second slit 121 is also formed in the device placement section 170. A third slit 131 is formed in the left circumflex branch model 130. The third slit 131 is a notch that connects the left circumflex branch model 130 to the outside. The third slit 131 is provided on the first main surface 11 side of the main body 10. The proximal end of the third slit 131 is located at the proximal end of the main body 10. The tip of the third slit 131 is located at the tip of the main body 10.

[0030] As shown in Figure 5, when no external force is applied to the main body 10, in other words, when the main body 10 is not curved, the first slit 111, the second slit 121, and the third slit 131 are all closed. This is true even when the main body 10 is installed in the housing 20, as shown in Figure 5, and also when the main body 10 is not housed in the housing 20 but simply placed on the workbench. "Closed slits" means that the surfaces located on both edges of the slits are in contact with each other. "Surfaces located on both edges of the slits" means, for example, in the case of the second slit 121, the first surface 1211 and the second surface 1212 shown in Figure 9. When the slits are closed, as shown in Figure 5, the part of the vascular portion 100 other than the lesion placement portion 140 has an O-shaped lumen in the cross-section of the main body 10. The main body 10 is made of an elastic material. Therefore, the surgeon can open the slit by curving the main body 10 as shown in Figure 9. "Open slit" means that the surfaces located on both edges of the slit are separated. By opening the slit, the surgeon can easily access the inside of the slit, that is, the inside of the vascular portion 100. As a result, the surgeon can easily place a simulated lesion or an implantable device inside the vascular portion 100.

[0031] Figure 10 is an explanatory diagram illustrating an example of the configuration of the add-on portion 30. In Figure 10, for ease of illustration, the lumen formed inside the add-on portion 30 is shown with solid lines and dot hatching. The add-on portion 30 is formed from either a well-known resin material or an elastic body. An example of a well-known resin material is acrylic resin. Examples of elastic bodies include silicone, synthetic rubber, natural rubber, urethane, PVA, hydrogel, and styrene. In this embodiment, the add-on portion 30 is formed from transparent silicone, similar to the main body portion 10. The add-on portion 30 is a rectangular flat plate having a pair of main surfaces 31 and a second side surface 33. The second side surface 33 refers to the entire side surface sandwiched between the pair of main surfaces 31.

[0032] Inside the extension 30, a first branch 301 and a second branch 302 are formed. The first branch 301 and the second branch 302 are lumens into which a medical device 90 can be inserted. The first branch 301 and the second branch 302 may have shapes that mimic human blood vessels. The first branch 301 and the second branch 302 may have specific shapes suitable for evaluating the performance of the medical device 90. In the example of Figure 10, the first branch 301 has a curved portion 3011 that is significantly curved in the middle. The base end of the first branch 301 opens to the second side surface 33 on the base end side of the extension 30. The portion of the first branch 301 that opens at its base end is also called the second opening 3012. Of the first side surface 13 of the main body 10, the surface on which the first opening 1142 is formed is called the first side surface 13A. Of the second side surface 33 of the addition section 30, the surface on which the second opening 3012 is formed is called the second side surface 33A. As shown in Figure 1, when the main body 10 and the addition section 30 are positioned relative to the housing section 20, the second side surface 33A of the addition section 30 is positioned abutting against the first side surface 13A of the main body 10. The second opening 3012 of the first branch 301 is formed in the main body 10 at a position corresponding to the first opening 1142 of the anterior right ventricular branch model 114. As a result, as shown in Figure 1, when the main body 10 is installed in the housing section 20, the anterior right ventricular branch model 114 of the main body 10 is connected to the first branch 301 of the addition section 30 by the connection of the first opening 1142 and the second opening 3012. The tip of the first branch 301 merges with the second branch 302. The first branch 301 corresponds to the "second lumen".

[0033] The second branch 302 extends linearly along the Y-axis. The second branch 302 has three branched branches 3021 to 3023. The first branched branch 3021 is the branch located closest to the base end. The third branched branch 3023 is the branch located closest to the tip end. The second branched branch 3022 is a branch located between the first branched branch 3021 and the third branched branch 3023. The base end of the second branch 302 opens to the second side surface 33 on the base end side of the attachment 30. The tip of the second branch 302 opens to the second side surface 33 on the tip side of the attachment 30. As shown in Figure 5, the first branch 301 and the second branch 302 have an O-shaped internal cavity in the cross-section of the attachment 30. The first branch 301 and the second branch 302 do not have slits. A slit may be provided in at least one of the first branch 301 and the second branch 302.

[0034] The main body 10 can be manufactured, for example, as follows. First, the worker creates a core material having the shape of the vascular section 100 using a 3D printer or the like. The worker prepares a rectangular outer frame and pours liquid resin material into it with the core material placed inside the outer frame. After the resin material hardens, the worker removes the core material. When removing the core material, the worker forms first to third slits 111 to 113, which allows the core material to be smoothly removed from the first to third slits 111 to 113. The core material may be made of metal or resin.

[0035] Figure 11 shows the vascular model device 1 in use. Figure 11 shows a cross-section of the vascular model device 1 along the line B-B in Figure 1. The operator can simulate percutaneous interventional procedures using the vascular model device 1 by following the steps a1 to a4 below. (a1) The operator places the simulated lesion 50 and the implantation device 60 in the main body 10 in advance. As explained in Figure 8, the lesion placement section 140 has an opening 141. Therefore, the operator can easily fit the simulated lesion 50 into the lesion placement section 140. As explained in Figure 9, the device placement section 170 has a second slit 121. Therefore, the operator can easily insert the implantation device 60 into the device placement section 170. The operator may place the implantation device 60 in place of the simulated lesion 50 in the lesion placement section 140. The operator may place the implantation device 60 together with the simulated lesion 50 in the lesion placement section 140. The surgeon may place the simulated lesion 50 in place of the implanted device 60 in the device placement section 170. Alternatively, the surgeon may place the simulated lesion 50 together with the implanted device 60 in the device placement section 170. This allows the surgeon to simulate procedures for a variety of cases.

[0036] (a2) The operator places the main body 10 and the add-on 30 in relation to the housing 20. As shown in Figure 11, the housing 20 has a space 23 enclosed by a mounting surface 21 and a side wall 22. The operator places the main body 10 and the add-on 30 in relation to the space 23. At this time, as shown in Figure 11, the operator places the main body 10 on the mounting surface 21 of the housing 20 with the first main surface 11 facing downwards. In this way, the opening 141 of the lesion placement section 140 is closed by the mounting surface 21 of the housing 20, and the inside of the lesion placement section 140 becomes a closed space. This prevents the simulated lesion 50 placed in the lesion placement section 140 from shifting position against the operator's intention, and also prevents the medical device 90 from protruding outside the lesion placement section 140. After that, the operator pours liquid W into the space 23 and stores the liquid W in the space 23. The surgeon can use, for example, physiological saline as liquid W.

[0037] (a3) As explained in Figure 3, the operator inserts the medical device 90 through at least one of the first side hole 25 and the second side hole 26. The operator advances the medical device 90 inside the vascular model device 1 in the order of flow path SP, aortic arch model 29, and ascending aorta model 101. After that, the operator can advance the medical device 90 to any part of the vascular section 100 to simulate the intended procedure. The central axis of the lesion placement section 140 is approximately the same as the central axis of the proximal connection section 112 and approximately the same as the central axis of the distal connection section 113. Therefore, the medical device 90 that has reached the simulated lesion 50 in the lesion placement section 140 is likely to be centered in the lesion placement section 140 and the simulated lesion 50. As a result, the operator can easily simulate the procedure using the medical device 90 and evaluate the performance of the medical device 90.

[0038] (a4) After simulating the procedure, the operator discards the liquid W and removes the main body 10 and the attachment 30. At this time, as shown in Figure 11, a gap 24 exists between the side wall 22 of the housing 20 and the first side surface 13 of the main body 10, due to the notch 14 provided in the main body 10. Therefore, the operator can easily remove the main body 10 from the housing 20. That is, the notch 14 of the main body 10 functions as a finger rest. In this embodiment, "a gap exists" means that the area of ​​the mounting surface 21 of the housing 20 is greater than the sum of the area of ​​the first main surface 11 of the main body 10 and the area of ​​one of the main surfaces 31 of the attachment 30, thereby forming a space with a width W24 inside the housing of the main body 10.

[0039] When repeating the simulation of the procedure, the operator may simply repeat steps a1 to a4 described above. When repeating the simulation of the procedure, the operator may not discard the liquid W in step a4, but instead lift a part of the main body 10 while keeping the medical device 90 inserted, and replace only the simulated lesion in the lesion placement section 140. If evaluation using the add-on part 30 is not necessary, the operator may omit the installation of the add-on part 30 in step a1.

[0040] As described above, in the vascular model device 1 of the first embodiment, a lumen simulating a vascular section 100 into which a long medical device 90 can be inserted is formed inside the main body 10. Therefore, the vascular model device 1 can be used as a simulator capable of simulating procedures using the medical device 90. The vascular section 100 has a lesion placement section 140. Therefore, by placing a simulated lesion 50 in the lesion placement section 140, the operator can simulate the procedure of treating the simulated lesion 50 with the medical device 90. The lesion placement section 140 has an opening 141 connecting the first main surface 11 and the lumen. Therefore, the operator can easily place the simulated lesion 50 in and remove the simulated lesion 50 from the lesion placement section 140. In other words, the operator can easily and quickly rearrange the simulated lesion 50 in the lesion placement section 140. As a result, the usability of the vascular model device 1 can be improved.

[0041] Furthermore, according to the vascular model device 1 of the first embodiment, the inner diameter Φ140 of the lesion placement section 140 is larger than the inner diameter Φ100 of the portion of the vascular section 100 other than the lesion placement section 140. Therefore, the operator can more easily place the simulated lesion 50 on the lesion placement section 140 and remove the simulated lesion 50.

[0042] Furthermore, according to the vascular model device 1 of the first embodiment, the inner diameter Φ113 of the tip-side connection portion 113 increases toward the lesion placement portion 140. Therefore, it is possible to suppress the occurrence of a step on the inner circumferential surface side at the connection portion between the vascular portion 100 and the tip 146 side of the lesion placement portion 140. As a result, it is possible to suppress the medical device 90 from getting caught on the inner circumferential surface side of the connection portion when simulating a procedure using the medical device 90.

[0043] Furthermore, according to the vascular model device 1 of the first embodiment, the inner diameter Φ112 of the proximal end connection portion 112 increases toward the lesion placement portion 140. Therefore, it is possible to suppress the occurrence of a step on the inner circumferential surface at the connection portion between the vascular portion 100 and the proximal end 145 side of the lesion placement portion 140. As a result, it is possible to suppress the medical device 90 from getting caught on the inner circumferential surface of the connection portion when simulating a procedure using the medical device 90.

[0044] Furthermore, according to the vascular model device 1 of the first embodiment, on the first main surface 11 of the main body portion 10, first slits 111, second slits 121, and third slits 131 are provided that connect portions of the vascular portion 100 other than the lesion placement portion 140 to the outside. Therefore, it is easy for the operator to access portions of the vascular portion 100 other than the lesion placement portion 140. Thus, the operator can easily place the simulated lesion 50 and the indwelling device 60 with respect to this portion and remove the simulated lesion 50 and the indwelling device 60 from this portion. As a result, the usability of the vascular model device 1 can be further improved.

[0045] Furthermore, according to the vascular model device 1 of the first embodiment, the first slit 111 is not provided at the position of the distal end side connection portion 113 which is a portion of the vascular portion 100 connected to the distal end side of the lesion placement portion 140. Therefore, it is possible to prevent the medical device 90 from accidentally entering the first slit 111. The first slit 111 is provided at the position of the proximal end side connection portion 112 which is a portion of the vascular portion 100 connected to the proximal end side of the lesion placement portion 140. Thus, the operator can more easily place the simulated lesion 50 with respect to the lesion placement portion 140 and remove the simulated lesion 50.

[0046] Furthermore, the vascular model device 1 of the first embodiment further includes a housing portion 20 capable of installing the main body portion 10 and storing the liquid W. Therefore, the operator can simulate procedures using the medical device 90 in a state where the vascular portion 100 is filled with liquid, similar to actual clinical practice. In a state where the main body portion 10 is installed in the housing portion 20, a gap 24 exists between the side wall 22 of the housing portion 20 and the first side surface 13 of the main body portion 10. Therefore, the operator can easily remove the main body portion 10 from the housing portion 20.

[0047] Furthermore, according to the vascular model device 1 of the first embodiment, at least one branch included in the vascular portion 100, specifically the anterior right ventricular branch model 114, extends to the first side surface 13 of the main body portion 10, and a first opening 1142 connecting the anterior right ventricular branch model 114 to the outside is formed in the first side surface 13. Therefore, the operator can connect the lumens of the main body portion 10 and the additional portion 30.

[0048] Further, according to the vascular model device 1 of the first embodiment, at a position corresponding to the first opening 1142 when the second side surface 33 of the additional part 30 and the first side surface 13 of the main body part 10 are arranged in contact with each other, a second opening 3012 through which the first branch 301 is connected to the outside is formed. Therefore, the operator can attach the additional part 30 to the main body part 10 and use the additional part 30 to simulate the medical device 90.

[0049] Further, according to the vascular model device 1 of the first embodiment, when the main body part 10 is projected and viewed from the second main surface 12 toward the first main surface 11, at the connection part CP between the fourth diagonal branch model 164 and the left anterior descending branch model 120, among the angles formed by the outer edge of the fourth diagonal branch model 164 and the outer edge of the left anterior descending branch model 120, the angle θ on the side closer to the ascending aorta model 101 is an acute angle. Therefore, the operator can simulate the reverse wire technique at the connection part CP between the fourth diagonal branch model 164 and the left anterior descending branch model 120. As a result, the vascular model device 1 can be made into a device that can simulate various procedures.

[0050] Further, according to the vascular model device 1 of the first embodiment, the vascular part 100 further includes a device placement part 170 having an inner diameter Φ170 that is larger than the inner diameter of the part of the vascular part 100 connected to the device placement part 170. Therefore, the operator can install an indwelling device 60 such as a stent in the device placement part 170.

[0051] <Second Embodiment> FIG. 12 is an explanatory diagram illustrating the aspect of the main body part 10A of the second embodiment. The vascular model device 1A of the second embodiment includes a main body part 10A instead of the main body part 10 in the aspect described in the first embodiment. The vascular part 100A of the main body part 10A does not have the tip-side connection part 113 as shown in FIG. 12. Therefore, a step 147 is formed at the tip of the lesion placement part 140. Even in the vascular model device 1A of the second embodiment as described above, the same effects as those of the first embodiment described above can be achieved.

[0052] <Third Embodiment> Figure 13 is an explanatory diagram illustrating an example of the main body 10B of the third embodiment. The vascular model device 1B of the third embodiment includes a main body 10B instead of the main body 10, as described in the first embodiment. As shown in Figure 13, the vascular portion 100B of the main body 10B does not have a proximal end connection portion 112. Therefore, a step 148 is formed at the proximal end of the lesion placement portion 140. The vascular model device 1B of the third embodiment described above can also achieve the same effects as the first embodiment described above.

[0053] <Fourth Embodiment> Figure 14 is an explanatory diagram illustrating an example of the main body 10C of the fourth embodiment. The vascular model device 1C of the fourth embodiment includes a main body 10C in place of the main body 10, as described in the embodiment of the first embodiment. The vascular portion 100C of the main body 10C does not have the first slit 111, the second slit 121, and the third slit 131, as shown in Figure 14. In the example of Figure 14, the case in which all slits are omitted is illustrated. Various modifications are possible to the main body 10C, and it does not have to have at least one of the first slits 111 to the third slit 131 described in the first embodiment. The vascular model device 1C of the fourth embodiment described above can also achieve the same effects as the first embodiment described above.

[0054] <Fifth Embodiment> Figure 15 is an explanatory diagram illustrating an example of the vascular model device 1D of the fifth embodiment. The vascular model device 1D of the fifth embodiment does not have a housing section 20 as described in the first embodiment. When using the vascular model device 1D, the operator places the main body 10 and the additional section 30 on the table in the procedure a2 described above. The storage of liquid W in procedure a2 is omitted. In the procedure a3 described above, the operator simply inserts the medical device 90 into the vascular section 100 from the opening at the proximal end of the ascending aorta model 101. In the vascular model device 1D, the additional section 30 may also be omitted in addition to the housing section 20. The vascular model device 1D of the fifth embodiment described above can also achieve the same effects as the first embodiment described above.

[0055] <Sixth Embodiment> Figure 16 is an explanatory diagram illustrating an example of the vascular model device 1E according to the sixth embodiment. The vascular model device 1E of the sixth embodiment, as described in the first embodiment, is equipped with a housing section 20E instead of the housing section 20, and does not have an additional section 30. The housing section 20E does not have the fourth mounting surface 214 described in the first embodiment. The area of ​​the mounting surface 21 of the housing section 20E is larger than the area of ​​the first main surface 11 of the main body section 10. The area of ​​the mounting surface 21 of the housing section 20E refers to the sum of the area of ​​the first mounting surface 211, the area of ​​the second mounting surface 212, and the area of ​​the third mounting surface 213. The vascular model device 1E of the sixth embodiment described above can also achieve the same effects as the first embodiment described above.

[0056] <Seventh Embodiment> Figure 17 is an enlarged view of the vicinity of the fourth diagonal branch model 164 in the main body 10F of the seventh embodiment. The vascular model device 1F of the seventh embodiment includes a main body 10F instead of the main body 10, as described in the first embodiment. As shown in Figure 17, the main body 10F has a fourth diagonal branch model 164F instead of the fourth diagonal branch model 164. Figure 17 is an enlarged view of the connection portion CP between the fourth diagonal branch model 164F and the left anterior descending branch model 120 when the main body 10F is projected from the second main surface 12 toward the first main surface 11. In the connection portion CP shown in the projection view in Figure 17, the angle θ1 on the side closer to the ascending aorta model 101, which is formed by the outer edge of the fourth diagonal branch model 164F and the outer edge of the left anterior descending branch model 120, is not acute but obtuse. The fourth diagonal branch model 164F corresponds to the "diagonal branch model". In this way, the main body 10F can be modified in various ways, and the angle θ1 does not have to be acute. The vascular model device 1F of the seventh embodiment described above can also achieve the same effects as the first embodiment described above.

[0057] <Eighth Embodiment> Figure 18 is an explanatory diagram illustrating an example of the main body 10G of the eighth embodiment. The vascular model device 1G of the eighth embodiment includes a main body 10G instead of the main body 10, as described in the embodiment of the first embodiment. The vascular section 100G of the main body 10G does not have a device placement section 170, as shown in Figure 18. Even without a device placement section 170, the operator can place a simulated lesion 50 or an implantable device 60 at any position inside the vascular section 100G by opening at least one of the first slit 111, the second slit 121, and the third slit 131. The vascular model device 1G of the eighth embodiment described above can also achieve the same effects as the first embodiment described above.

[0058] <Modifications of this Embodiment> This disclosure is not limited to the embodiments described above, and can be implemented in various forms without departing from the spirit of the invention. For example, the following modifications are also possible.

[0059] [Modification 1] The above first to eighth embodiments show examples of vascular model devices 1, 1A to 1G. Various modifications are possible to the vascular model devices 1, 1A to 1G. For example, the vascular model device 1 may include other parts not mentioned above. For example, the vascular model device 1 may have one or more simulated lesions 50. The simulated lesions 50 may be placed by the operator or may be pre-placed in the main body 10. For example, the vascular model device 1 may have one or more implantable devices 60. The implantable devices 60 may be placed by the operator or may be pre-placed in the main body 10. For example, the vascular model device 1 may have one or more medical devices 90. For example, the vascular model device 1 may have a plurality of main body parts 10 with different configurations of vascular sections 100. For example, the vascular model device 1 may have a plurality of additional sections 30 with different configurations of lumen.

[0060] For example, the housing section 20 does not have to have a third mounting surface 213. In this case, the first side hole 25 and the second side hole 26 may be omitted. Furthermore, in this case, a through hole that penetrates the side wall 22 may be provided in any part of the side wall 22 of the housing section 20 at a position corresponding to the aortic arch model 29. For example, the housing section 20 does not have to have a second part 202. In this case, a through hole that penetrates the side wall 22 in the Y-axis direction may be provided in the side wall 22 at a position corresponding to the opening of the ascending aorta model 101.

[0061] [Modification 2] In the above first to eighth embodiments, examples of the main body portions 10, 10A to 10C, 10F, and 10G are shown. Various modifications are possible to the configuration of the main body portions 10, 10A to 10C, 10F, and 10G. For example, the main body portion 10 does not have to have the notch portion 14. If the notch portion 14 of the main body portion 10 is omitted, a protrusion may be provided in the housing portion 20 to form a gap between the main body portion 10 and the housing portion 20, i.e., a finger rest portion. If the notch portion 14 of the main body portion 10 is omitted, the gap between the main body portion 10 and the housing portion 20, i.e., the finger rest portion, may not be present.

[0062] In the examples of the first to eighth embodiments described above, the main body 10 includes a cardiovascular model. That is, the vascular section 100 simulates the cardiovascular system. However, the main body 10 does not necessarily have to include a cardiovascular model. That is, the vascular section 100 may simulate blood vessels other than those of the cardiovascular system. Examples of blood vessels other than those of the cardiovascular system include cerebral blood vessels, lower limb blood vessels, lymphatic vessels, etc. For example, the vascular section 100 does not necessarily have to have at least a portion of the branches 101 to 165 described above. For example, the vascular section 100 may have a portion that simulates a blood vessel different from each of the blood vessels listed as examples of branches 101 to 165. For example, the ends of each branch 110 to 165 of the vascular section 100, excluding the ascending aorta model 101, do not necessarily have to be open on the first side surface 13 of the main body 10.

[0063] For example, in the examples of Figures 4 and 7, the left anterior descending branch model 120 is exemplified as the first vascular model, and the fourth diagonal branch model 164 is exemplified as the second vascular model. Any vascular from the vascular section 100 can be used as the first and second vascular models. That is, any two vasculars in the vascular section 100 may have an acute angle at the connection point between the outer edge of the second vascular model and the outer edge of the first vascular model, with the angle closer to the proximal end being acute. In other words, any two vasculars included in the vascular section 100 may be branched in the opposite direction to the usual, that is, in a shape that spreads from the tip to the proximal end.

[0064] For example, the location of the lesion placement area 140 described above is merely illustrative. The lesion placement area 140 may be provided at any location within the vascular section 100. Specifically, for example, the lesion placement area 140 may be provided at any part of the left anterior descending branch model 120. For example, the lesion placement area 140 may be provided at any part of the left circumflex branch model 130. For example, the inner diameter Φ140 of the lesion placement area 140 of the vascular section 100 may be the same as the inner diameter Φ100 of the part of the vascular section 100 other than the lesion placement area 140. For example, the inner diameter Φ140 of the lesion placement area 140 of the vascular section 100 may be smaller than the inner diameter Φ100 of the part of the vascular section 100 other than the lesion placement area 140. For example, the inner diameter Φ140 of the lesion placement area 140 may not be constant in the range from the tip 146 to the proximal end 145. For example, the inner diameter Φ140 of the lesion placement section 140 may be largest near the center between the tip 146 and the base 145. In this case, the maximum inner diameter can be used as the Φ140 compared to the inner diameter Φ100.

[0065] For example, the cross-sectional area of ​​the tip-side connection portion 113 may be greater than or equal to the cross-sectional area of ​​the lesion placement portion 140. For example, the tip-side connection portion 113 does not have to be tapered in shape, widening toward the lesion placement portion 140. For example, the cross-sectional area of ​​the proximal-side connection portion 112 may be greater than or equal to the cross-sectional area of ​​the lesion placement portion 140. For example, the proximal-side connection portion 112 does not have to be tapered in shape, widening toward the lesion placement portion 140.

[0066] For example, the first slit 111 of the vascular portion 100 may be provided in a range different from the range described in Figure 4. For example, the second slit 121 of the vascular portion 100 may be provided in a range different from the range described in Figure 4. For example, the third slit 131 of the vascular portion 100 may be provided in a range different from the range described in Figure 4. For example, a slit different from the first slit 111 to the third slit 131 may be formed at a different position from the first slit 111 to the third slit 131.

[0067] [Modification 3] The configurations of the vascular model devices 1, 1A to 1G and the main body parts 10, 10A to 10C, 10F, 10G of the first to eighth embodiments described above and the configurations of the vascular model devices 1, 1A to 1G and the main body parts 10, 10A to 10C, 10F, 10G of the modifications 1 and 2 described above may be combined as appropriate. For example, the vascular model device 1 may be formed by arbitrarily combining at least two or more features from the following: the feature of not having the tip-side connection part 113 described in the second embodiment, the feature of not having the base-side connection part 112 described in the third embodiment, the feature of not having the slit described in the fourth embodiment, the feature of not having the housing part 20 described in the fifth embodiment, the feature of not having the additional part 30 described in the sixth embodiment, the angle θ1 described in the seventh embodiment, and the feature of not having the device placement part 170 described in the eighth embodiment.

[0068] This embodiment has been described above based on embodiments and modifications. The embodiments described above are for the purpose of facilitating understanding of this embodiment and do not limit it. This embodiment can be modified and improved without departing from its spirit and the scope of the claims, and equivalents thereof are included in this embodiment. Technical features that are not described as essential in this specification may be deleted as appropriate.

Claims

1. A vascular model device (1, 1A to 1G), comprising a main body (10, 10A to 10C, 10F, 10G) having a first main surface (11), a second main surface (12), and a side surface (13) sandwiched between the first main surface (11) and the second main surface (12), wherein the main body (10, 10A to 10C, 10F, 10G) has a lumen formed inside that simulates a vascular section (100, 100A to 100C, 100G) into which a long medical device (90) can be inserted, and the vascular section (100, 100A to 100C, 100G) has a lesion placement section (140) into which an opening is formed connecting the first main surface (11) and the lumen, the vascular model device (1, 1A to 1G).

2. A vascular model device (1, 1A to 1G) according to claim 1, wherein the inner diameter of the lesion placement portion (140) is larger than the inner diameter of the portion of the vascular portion (100, 100A to 100C, 100G) other than the lesion placement portion (140).

3. A vascular model device (1, 1B to 1G) according to claim 1 or claim 2, wherein the cross-sectional area of ​​the tip-side connection part (113), which is the part of the vascular section (100, 100B, 100C, 100G) that is connected to the tip side of the lesion placement section (140), is smaller than the cross-sectional area of ​​the lesion placement section (140).

4. A vascular model device (1, 1B to 1G) according to claim 3, wherein the inner diameter of the tip-side connection portion (113) increases toward the lesion placement portion (140).

5. A vascular model device (1, 1A, 1C to 1G) according to any one of claims 1 to 4, wherein the cross-sectional area of ​​the proximal end connection portion (112), which is the portion of the vascular portion (100, 100A, 100C, 100G) that is connected to the proximal end side of the lesion arrangement portion (140), is smaller than the cross-sectional area of ​​the lesion arrangement portion (140).

6. A vascular model device (1, 1A, 1C to 1G) according to claim 5, wherein the inner diameter of the proximal end connection portion (112) increases toward the lesion placement portion (140).

7. A vascular model device (1, 1A, 1B, 1D to 1G) according to any one of claims 1 to 6, wherein the first main surface (11) of the main body (10, 10A, 10B, 10F, 10G) is provided with slits (111, 121, 131) that connect the portion of the vascular section (100, 100A, 100B, 100G) other than the lesion placement section (140) to the outside.

8. A vascular model device (1, 1A, 1B, 1D to 1G) according to claim 7, wherein the slits (111, 121, 131) are not provided at the position of the tip-side connection portion (113), which is the portion of the vascular section (100, 100A, 100B, 100G) that is connected to the tip side of the lesion placement portion (140).

9. A vascular model device (1, 1A, 1B, 1D to 1G) according to claim 7 or claim 8, wherein the slits (111, 121, 131) are provided at the position of the proximal connection portion (112), which is the portion of the vascular portion (100, 100A, 100B, 100G) that is connected to the proximal end side of the lesion placement portion (140).

10. A vascular model device (1, 1A to 1C, 1E to 1G) according to any one of claims 1 to 9, further comprising: a mounting surface (21) having a larger area than the first main surface (11); a side wall (22) provided on the periphery of the mounting surface (21); and a storage section (20, 20E) in which the main body (10, 10A to 10C, 10F, 10G) can be installed and liquid stored in the space enclosed by the mounting surface (21) and the side wall (22), wherein the vascular model device (1, 1A to 1C, 1E to 1G).

11. A vascular model device (1, 1A to 1C, 1E to 1G) according to claim 10, wherein, when the main body (10, 10A to 10C, 10F, 10G) is installed in the housing (20, 20E), a gap exists between the side wall (22) of the housing (20, 20E) and the side surface (13) of the main body (10, 10A to 10C, 10F, 10G).

12. A vascular model device (1, 1A to 1D, 1F, 1G) according to any one of claims 1 to 11, wherein the side surface (13) of the main body (10, 10A to 10C, 10F, 10G) is a first side surface (13), the lumen of the main body (10, 10A to 10C, 10F, 10G) is a first lumen, at least one of the branches included in the vascular portion (100, 100A to 100C, 100G) extends to the first side surface (13) of the main body (10, 10A to 10C, 10F, 10G), and a first opening (1142) connecting the first lumen to the outside is formed on the first side surface (13).

13. A vascular model device (1, 1A to 1D, 1F, 1G) according to claim 12, further comprising an add-on (30) having a pair of main surfaces (31) and a second side surface (33) sandwiched between the pair of main surfaces (31), the add-on (30) having a second lumen formed inside into which the medical device (90) can be inserted, and the second side surface (33) having a second opening (3012) connecting the second lumen to the outside, at a position corresponding to the first opening (1142) when the second side surface (33) of the add-on (30) and the first side surface (13) of the main body (10, 10A to 10C, 10F, 10G) are abutted together, the vascular model device (1, 1A to 1D, 1F, 1G).

14. A vascular model device (1, 1A to 1E, 1G) according to any one of claims 1 to 13, wherein the vascular portion (100, 100A to 100C, 100G) includes a first vascular model (120) and a second vascular model (164) different from the first vascular model (120), and when the main body portion (10, 10A to 10C, 10G) is projected from the second main surface (12) toward the first main surface (11), the angle formed by the outer edge of the first vascular model (120) and the outer edge of the second vascular model (164) at the connection portion between the first vascular model (120) and the second vascular model (164) is acute on the side closer to the proximal end.

15. A vascular model device (1, 1A to 1E, 1G) according to claim 14, wherein the first vascular model (120) is a left anterior descending branch model (120) that simulates the left anterior descending branch, the second vascular model (164) is a diagonal branch model (164) that simulates one of the diagonal branches, and the vascular section (100, 100A to 100C, 100G) further includes an ascending aorta model (101) that simulates the ascending aorta, and a left circumflex branch model (130) that simulates the left circumflex branch. In the projected view, at the connection point between the left anterior descending branch model (120) and the diagonal branch model (164), the angle formed by the outer edge of the left anterior descending branch model (120) and the outer edge of the diagonal branch model (164) on the side closer to the ascending aorta model (101) is acute, according to the vascular model devices (1, 1A to 1E, 1G).

16. A vascular model device (1, 1A to 1F) according to any one of claims 1 to 15, wherein the vascular section (100, 100A to 100C) further has a device placement section (170) which is a part for installing an implantable medical device (60), and the inner diameter of the device placement section (170) is larger than the inner diameter of the part of the vascular section (100, 100A to 100C) that is connected to the device placement section (170).

Images