Apparatus for biological modeling

Abstract

To provide an apparatus for biological modeling including a structure for allowing a biological model to be easily replaced so as to enable training with various biological models, the apparatus further allowing even biological models having different sizes to be easily replaced, thereby enabling training with various biological models to be easily carried out.SOLUTION: An apparatus for biological modeling 1 includes a long tubular member 9 and a biological-model mounting part 3 disposed in an inner cavity 4 of the tubular member 9, the biological-model mounting part 3 being configured to allow a biological model 2 to be attached and detached.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a biological model device used for training an operator to improve his / her technique. [Background technology]

[0002] Conventionally, training has been conducted to improve the skills of technicians so that they can safely and successfully perform procedures directly on patients, and it is known that during this training, a living body model is used instead of the patient's own tissue.

[0003] For example, Patent Document 1 describes a biological model 21 in which a three-dimensional model of the right coronary artery 4 is narrowed or blocked (see Figure 5, etc.), and it is also recognized that the patent document 1 describes a method for manufacturing the biological model 21 (see Figure 10, etc.).

[0004] To manufacture the biological model 21 described in Patent Document 1, first, an outer tube 71, a plunger 72 that can slide within the outer tube 71 and has a through-hole 73 in the axial direction, and a wire 74 that is inserted into the through-hole 73 are prepared, and with the plunger 72 inserted into the outer tube 71, the wire 74 is inserted into the through-hole 73 and the outer tube 71.

[0005] Then, a liquid material containing the constituent materials of lesion model 21 is filled into outer tube 71 with wire 74 and plunger 72 inserted, and then solidified, thereby producing lesion model 21 inside outer tube 71 (see Figure 10, etc.). [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Japanese Patent Application Laid-Open No. 2010-178809 Summary of the Invention [Problem to be solved by the invention]

[0007] However, since the biological model 21 described in Patent Document 1 is manufactured inside the outer tube 71, once a catheter or guide wire is inserted into the three-dimensional model of the right coronary artery 4 and then into the biological model 21, the biological model 21 cannot be replaced, and the biological model 21 cannot be used repeatedly, which is a problem.

[0008] On the other hand, since the size of the biological model is not specified, it is desirable that such training be able to easily train biological models of various sizes.

[0009] The present invention has been made in response to the above-mentioned problems of the prior art, and aims to provide a biological model device that allows biological models to be easily replaced, making it easy to carry out training using various biological models, and that also allows biological models of different sizes to be easily replaced, making it easy to carry out training using various biological models. [Means for solving the problem]

[0010] In order to solve the above-mentioned problems, the biological model device of the first aspect of the present invention is characterized by comprising a long tubular member and a biological model attachment portion that is arranged in the inner cavity of the tubular member and to which a biological model can be attached and detached.

[0011] In addition, a second aspect of the present invention is characterized in that, in the biological model device of the first aspect, the biological model mounting portion is formed along the inner wall of the entire cross-section of the tubular member and has an mounting main body portion with a through hole in the longitudinal direction of the tubular member.

[0012] In addition, a third aspect of the present invention is characterized in that, in the biological model device of the second aspect, the biological model attachment portion has a plurality of protrusions extending from the attachment main body portion in the longitudinal direction of the tubular member, abutting against the inner wall of the tubular member.

[0013] Furthermore, a fourth aspect of the present invention is characterized in that, in the biological model device of the third aspect, the circumferential length of the protrusion portion in a direction perpendicular to the longitudinal direction of the tubular member gradually decreases in the direction away from the mounting main body portion.

[0014] Furthermore, a fifth aspect of the present invention is characterized in that, in the biological model device of the third or fourth aspect, the length of the protrusion portion from the center of the cross section of the tubular member gradually increases in the direction away from the mounting main body portion.

[0015] Furthermore, a sixth aspect of the present invention is characterized in that, in the biological model device of the third or fourth aspect, the length of the protrusion portion from the center of the cross section of the tubular member gradually increases in the direction away from the mounting main body portion.

[0016] Furthermore, a seventh aspect of the present invention is characterized in that, in the biological model device of any of the third to sixth aspects, the biological model has an end portion having a shape corresponding to the shape of the protrusion portion. [Effects of the Invention]

[0017] According to the first aspect of the biological model device of the present invention, a long tubular member and a biological model attachment portion that is placed in the inner cavity of the tubular member and to which a biological model can be attached and detached are provided, so that the biological model can be easily replaced and training using various biological models can be easily carried out.

[0018] Furthermore, according to the second aspect of the present invention, the biological model device of the first aspect is provided with an attachment main body portion formed along the inner wall of the entire cross-section of the tubular member and having a through hole in the longitudinal direction of the tubular member. Therefore, in addition to the effects of the biological model device of the first aspect, the impact on training using biological models is minimized, making it easy to carry out training using various biological models.

[0019] Furthermore, according to the third aspect of the present invention, in the biological model device of the second aspect, the biological model attachment portion has a plurality of protrusions extending from the attachment main body portion in the longitudinal direction of the tubular member, abutting against the inner wall of the tubular member. Therefore, in addition to the effects of the biological model device of the second aspect, the biological model can be firmly attached to the biological model attachment portion, and training using various biological models can be carried out over long periods of time.

[0020] Furthermore, according to the fourth aspect of the present invention, in the biological model device of the third aspect, the circumferential length of the protrusion portion in a direction perpendicular to the longitudinal direction of the tubular member gradually decreases in the direction away from the attachment main body portion, so that in addition to the effects of the biological model device of the third aspect, the biological model can be easily attached to the biological model attachment portion.

[0021] Furthermore, according to the fifth aspect of the present invention, in the biological model device of the third or fourth aspect, the length of the protrusion portion from the center of the cross section of the tubular member gradually increases in the direction away from the attachment main body portion, so that in addition to the effects of the biological model device of the third or fourth aspect, the biological model can be easily attached to the biological model attachment portion even if the outer diameter of the biological model is changed.

[0022] Furthermore, according to the sixth aspect of the present invention, in the biological model device of the third or fourth aspect, the length of the protrusion portion from the center of the cross section of the tubular member gradually increases in the direction away from the attachment main body portion, so that in addition to the effects of the biological model device of the third or fourth aspect, the biological model can be easily attached to the biological model attachment portion even if the outer diameter of the biological model is changed.

[0023] Furthermore, according to the seventh aspect of the present invention, the biological model device of any of the third to sixth aspects is provided with a biological model, and the biological model has an end portion shaped according to the shape of the protrusion, so that in addition to the effects of the biological model device of any of the third to sixth aspects, the biological model can be more easily attached to the biological model attachment portion. [Brief explanation of the drawings]

[0024] [Figure 1] FIG. 1 is a diagram showing an example in which the biological model device according to the first embodiment of the present invention is used. [Figure 2] FIG. 1 is a longitudinal sectional view of a biological model device according to a first embodiment. [Figure 3] 3 is a cross-sectional view taken along the line AA in FIG. 2. [Figure 4] FIG. 2 is a diagram showing a state in which the biological model is attached to a biological model attachment section in the biological model device of the first embodiment. [Figure 5] FIG. 10 is a side view of a biological model as a modified example. [Figure 6] 6 is a cross-sectional view of FIG. 5 taken along line B-B. [Figure 7] FIG. 10 is a longitudinal sectional view of a biological model device according to a second embodiment. [Figure 8] 8 is a cross-sectional view taken along CC in FIG. 7. [Figure 9] FIG. 10 is a diagram showing a state in which a biological model is attached to a biological model attachment section in the biological model device of the second embodiment. [Figure 10] FIG. 10 is a longitudinal sectional view of a biological model device according to a third embodiment. [Figure 11] FIG. 11 is a cross-sectional view taken along the line DD in FIG. [Figure 12] FIG. 11 is a diagram showing a state in which a biological model is attached to a biological model attachment section in the biological model device of the third embodiment. [Figure 13] FIG. 10 is a longitudinal sectional view of a biological model device according to a fourth embodiment. [Figure 14] 14 is a cross-sectional view of FIG. 13 taken along the line E-E. [Figure 15] FIG. 10 is a diagram showing a state in which a biological model is attached to a biological model attachment section in the biological model device of the fourth embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0025] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[0026] (First embodiment) First, a first embodiment of the present invention will be described. Note that the drawings used in this embodiment are exaggerated to facilitate understanding, and the dimensions are different from the actual dimensions.

[0027] FIG. 1 is a diagram showing an example of using a biological model device according to the first embodiment of the present invention, FIG. 2 is a longitudinal cross-sectional view of the biological model device according to the first embodiment, FIG. 3 is a cross-sectional view taken along line AA in FIG. 2, and FIG. 4 is a diagram showing the state in which a biological model is attached to a biological model attachment portion in the biological model device according to the first embodiment.

[0028] As shown in Figure 1, the biological model device 1 of this embodiment is a device for performing operational training in which an operator inserts medical instruments such as a guide wire G and a catheter in the direction F and penetrates into a biological model, and is composed of a long tubular member 9 made of a flexible material and a biological model attachment part 3 that is placed in the inner cavity 4 of the tubular member 9 and to which a biological model 2 can be attached and detached.

[0029] As shown in FIGS. 2 to 4, the tubular member 9 is a flexible, long member having a substantially circular lumen 4 in the center of its cross section.

[0030] The material for forming the tubular member 9 is not particularly limited as long as it has excellent transparency and elasticity and flexibility similar to that of an actual coronary artery, etc., but examples that can be used include silicone rubber such as silicone elastomer and silicone gel, thermosetting resins such as polyurethane elastomer, silicone resin, epoxy resin and phenolic resin, thermoplastic resins such as polymethyl methacrylate, polyvinyl chloride and polyethylene, and materials that combine one or more of these, and in this embodiment, silicone rubber is used.

[0031] As shown in Figures 2 to 4, the biological model mounting portion 3 comprises an mounting main body 7 formed along the inner wall of the tubular member 9 over the entire cross section, having a predetermined radial thickness and a predetermined length in the longitudinal direction of the tubular member 9, five protrusions 5 (5a, 5b, 5c, 5d and 5e) that abut against the inner wall of the tubular member 9 from the mounting main body 7 and extend in the longitudinal direction (-F direction) of the tubular member 9, and a through hole 8 that is approximately circular in cross section and formed in the longitudinal direction of the tubular member 9 at the center of the cross section of the mounting main body 7 and the protrusions 5.

[0032] As shown in FIG. 3, the protrusions 5 (5a, 5b, 5c, 5d, and 5e) of this embodiment are formed at equal angles (approximately 72 degrees) along the inner wall of the tubular member 9 across the entire cross section, and the cross-sectional shape of the protrusions 5 is approximately the same fan-shaped trapezoid in the longitudinal direction of the tubular member 9.

[0033] The material for forming the biological model attachment portion 3 can be the same as that for the tubular member 9, and is not particularly limited as long as it has excellent transparency and elasticity and flexibility similar to that of an actual coronary artery, etc., but examples that can be used include silicone rubber such as silicone elastomer and silicone gel, thermosetting resins such as polyurethane elastomer, silicone resin, epoxy resin, and phenolic resin, thermoplastic resins such as polymethyl methacrylate, polyvinyl chloride, and polyethylene, and combinations of one or more of these materials, and in this embodiment, silicone rubber is used.

[0034] In this embodiment, the biological model attachment portion 3 is described as being separate from the tubular member 9 and fixed to the tubular member 9, but the biological model attachment portion 3 may also be molded integrally with the tubular member 9.

[0035] In addition, the biological model 2 simulates a narrowed or blocked area in the patient's blood vessel, and in the biological model device 1 of the first embodiment, it has an approximately cylindrical shape with a diameter D1 that is approximately the same as the inner diameter D1 of the tubular member 9, and is flexible enough to deform when it comes into contact with the biological model mounting portion 3.

[0036] The material for forming the biological model 2 is not particularly limited, but may contain, for example, a polymer consisting of a mixture of one or more copolymers selected from polystyrene-polyethylene copolymer, polystyrene-polypropylene copolymer, polystyrene-polyethylene-polystyrene copolymer, polystyrene-polypropylene-polystyrene copolymer, silicone elastomer, silicone gel, etc., and a softener that softens the polymer.

[0037] When attaching the biological model 2 to the biological model device 1, the biological model 2 is inserted into the inner cavity 4 of the tubular member 9 and pushed in the direction F up to the biological model attachment portion 3 using a pusher (not shown), thereby attaching the biological model 2 to the biological model device 1 as shown in Figure 4.

[0038] In this case, the biological model 2 is attached to the biological model attachment part 3 in such a manner that its tip is deformed by the protrusions 5 of the biological model attachment part 3 and the material of the biological model 2 penetrates between each of the five protrusions 5.

[0039] In this embodiment, the number of protrusions 5 is five, but it is not limited to five, and may be two or more.

[0040] In the biological model device 1 of this embodiment described above, a biological model 2 having an approximately cylindrical shape with a diameter D1 is used, and further, a form has been described in which the tip of the biological model 2 deforms to match the shape of the protrusion 5 of the biological model attachment portion 3. However, it is also possible to shape the tip of the biological model itself to match the shape of the protrusion 5 of the biological model attachment portion 3.

[0041] FIG. 5 is a side view of a biological model as a modified example, and FIG. 6 is a cross-sectional view taken along line BB in FIG.

[0042] As described above, the modified biological model 12 has a tip shape of the biological model itself that matches the shape of the protrusion 5 of the biological model attachment portion 3, and as shown in Figures 5 and 6, it has a biological model main body portion 13 that has an approximately cylindrical shape with an overall diameter D1, similar to the biological model 2, and a predetermined length in the longitudinal direction, and five recesses 16 (16a, 16b, 16c, 16d and 16e) that are formed extending longitudinally from the tip of the biological model main body portion 13 toward the base end and are shaped to match the shape of each of the five protrusions 5.

[0043] Therefore, the biological model 12 has five recesses 16 at its end that correspond to the shapes of the five protrusions 5, which makes it easier to attach the biological model 12 to the biological model attachment part 3. The biological model 12 can be made of the same material as the biological model 2.

[0044] The biological model device 1 of this embodiment is equipped with a long tubular member 9 and a biological model attachment section 3 that is arranged in the inner cavity 4 of the tubular member 9 and to which the biological model 2 can be attached and detached, so that the biological model 2 can be easily replaced and training using various biological models 2 can be easily carried out.

[0045] Furthermore, according to the biological model device 1 of this embodiment, an attachment main body portion 7 is provided which is formed along the inner wall of the entire cross section of the tubular member 9 and has a through hole 8 in the longitudinal direction of the tubular member 9, thereby minimizing the impact on training using the biological model 2 and making it easy to carry out training using various biological models 2.

[0046] Furthermore, according to the biological model device 1 of this embodiment, the biological model attachment portion 3 has a plurality of protrusions 5 that extend from the attachment main body portion 7 in the longitudinal direction of the tubular member 9, abutting against the inner wall of the tubular member 9, so that the biological model 2 can be firmly attached to the biological model attachment portion 3, and training using various biological models 2 can be carried out over long periods of time.

[0047] (Second embodiment) Next, a second embodiment of the present invention will be described. Note that the drawings used in this embodiment are also exaggerated to facilitate understanding, and the dimensions are different from the actual dimensions.

[0048] A second embodiment of the present invention will be described below, but parts common to the first embodiment will be given the same reference numerals and descriptions thereof will be omitted.

[0049] The biological model device 20 of the second embodiment differs from the biological model device 1 of the first embodiment in the shape of the protrusion of the biological model attachment part. That is, the protrusion 5 of the biological model attachment part 3 of the first embodiment has a substantially uniform truncated fan shape in cross section in the longitudinal direction of the tubular member 9, but the protrusion of the biological model attachment part of the present embodiment has a circumferential length in a direction perpendicular to the longitudinal direction of the tubular member that gradually decreases in the direction away from the attachment main body.

[0050] Figure 7 is a longitudinal cross-sectional view of the biological model device of the second embodiment, Figure 8 is a CC cross-sectional view of Figure 7, and Figure 9 is a diagram showing the state in which the biological model is attached to the biological model attachment part in the biological model device of the second embodiment.

[0051] As shown in Figures 1 and 7 to 9, the biological model device 20 of this embodiment is also a device for performing operational training in which an operator inserts medical instruments such as a guide wire G and a catheter in the direction F and penetrates into a biological model, and is composed of a long tubular member 9 made of a flexible material and a biological model attachment part 23 that is placed in the inner cavity 4 of the tubular member 9 and to which the biological model 2 can be attached and detached.

[0052] As shown in Figures 7 to 9, the biological model mounting portion 23 comprises an mounting main body 27 formed along the inner wall of the tubular member 9 over the entire cross section, having a predetermined radial thickness and a predetermined length in the longitudinal direction of the tubular member 9, five protrusions 25 (25a, 25b, 25c, 25d and 25e) that abut against the inner wall of the tubular member 9 from the mounting main body 27 and extend in the longitudinal direction (-F direction) of the tubular member 9, and a through hole 28 that is approximately circular in cross section and formed in the longitudinal direction of the tubular member 9 at the center of the cross section of the mounting main body 27 and the protrusions 25.

[0053] As shown in FIG. 8, the protrusions 25 (25a, 25b, 25c, 25d, and 25e) of this embodiment are formed at equal angles (approximately 72 degrees) along the inner wall of the tubular member 9 throughout the cross section, and the circumferential length in a direction perpendicular to the longitudinal direction of the tubular member 9 gradually decreases in the direction away from the mounting main body 27, and have a roughly triangular shape in a plan view as shown in FIG. 7.

[0054] The material for forming the biological model attachment portion 23 can be the same as that for the biological model attachment portion 3 of the first embodiment, and in this embodiment, silicone rubber is used.

[0055] In this embodiment, the biological model attachment portion 23 is described as being separate from the tubular member 9 and fixed to the tubular member 9, but it may also be molded integrally with the tubular member 9, similar to the biological model attachment portion 3 of the first embodiment.

[0056] When attaching the biological model 2 to the biological model device 20, the biological model 2 is inserted into the inner cavity 4 of the tubular member 9 and pushed in the direction F up to the biological model attachment portion 3 using a pusher (not shown), thereby attaching the biological model 2 to the biological model device 20 as shown in Figure 9.

[0057] In this case, the biological model 2 is attached to the biological model attachment part 23 in such a manner that its tip is deformed by the protrusions 25 of the biological model attachment part 23 and the material of the biological model 2 penetrates between each of the five protrusions 25.

[0058] In this embodiment, the number of the protrusions 25 is five, but it is not limited to five, and may be two or more.

[0059] In the biological model device 20 of the above-described embodiment, a biological model 2 having an approximately cylindrical shape with a diameter D1 is used, and further, a form has been described in which the tip of the biological model 2 is deformed to match the shape of the protrusion 25 of the biological model attachment portion 23. However, as with the biological model 12, the tip shape of the biological model itself may be matched to the shape of the protrusion 25 of the biological model attachment portion 23, and a recess having an approximately triangular shape in plan view may be provided at the tip of the biological model.

[0060] In this case, five recesses having shapes corresponding to the shapes of the five protrusions 25 are provided at the end, so that the biological model can be attached to the biological model attachment portion 23 more easily.

[0061] According to the biological model device 20 of this embodiment, it is equipped with a long tubular member 9 and a biological model attachment part 23 that is arranged in the inner cavity 4 of the tubular member 9 and to which the biological model 2 can be attached and detached, so that the biological model 2 can be easily replaced and training using various biological models 2 can be easily carried out.

[0062] Furthermore, according to the biological model device 20 of this embodiment, the attachment main body portion 27 is formed along the inner wall of the entire cross section of the tubular member 9 and has a through hole 28 in the longitudinal direction of the tubular member 9, so that the impact on training using the biological model 2 is minimized and training using various biological models 2 can be easily carried out.

[0063] Furthermore, according to the biological model device 20 of this embodiment, the biological model attachment portion 23 has a plurality of protrusions 25 extending from the attachment main body portion 27 in the longitudinal direction of the tubular member 9, abutting against the inner wall of the tubular member 9. This allows the biological model 2 to be firmly attached to the biological model attachment portion 23, and training using various biological models 2 can be carried out over long periods of time.

[0064] Furthermore, according to the biological model device 20 of this embodiment, the circumferential length of the protrusion portion 25 in a direction perpendicular to the longitudinal direction of the tubular member 9 gradually decreases in the direction away from the mounting main body portion 27, so that the biological model 2 can be easily attached to the biological model attachment portion 23.

[0065] (Third embodiment) Next, a third embodiment of the present invention will be described. Note that the drawings used in this embodiment are also exaggerated to facilitate understanding, and the dimensions are different from the actual dimensions.

[0066] A third embodiment of the present invention will be described below, but parts common to the first embodiment will be given the same reference numerals and descriptions thereof will be omitted.

[0067] The biological model device 30 of the third embodiment differs from the biological model device 1 of the first embodiment in the shape of the protrusion of the biological model attachment part. That is, the protrusion 5 of the biological model attachment part 3 of the first embodiment has a substantially uniform truncated fan shape in cross section in the longitudinal direction of the tubular member 9, but the protrusion of the biological model attachment part of the present embodiment has a circumferential length in a direction perpendicular to the longitudinal direction of the tubular member that gradually decreases in the direction away from the attachment main body, and the length from the center of the cross section of the tubular member gradually increases in the direction away from the attachment main body.

[0068] Figure 10 is a longitudinal cross-sectional view of the biological model device of the third embodiment, Figure 11 is a DD cross-sectional view of Figure 10, and Figure 12 is a diagram showing the state in which the biological model is attached to the biological model attachment part in the biological model device of the third embodiment.

[0069] As shown in Figures 1 and 10 to 12, the biological model device 30 of this embodiment is also a device for performing operational training in which an operator inserts medical instruments such as a guide wire G and a catheter in the direction F and penetrates into a biological model, and is composed of a long tubular member 9 made of a flexible material and a biological model attachment part 33 that is placed in the inner cavity 4 of the tubular member 9 and to which a biological model 32 can be attached and detached.

[0070] As shown in Figures 10 to 12, the biological model mounting portion 33 comprises an mounting main body 37 formed along the inner wall of the tubular member 9 over the entire cross section, having a predetermined thickness in the radial direction and a predetermined length in the longitudinal direction of the tubular member 9, five protrusions 35 (35a, 35b, 35c, 35d and 35e) that abut against the inner wall of the tubular member 9 from the mounting main body 37 and extend in the longitudinal direction (-F direction) of the tubular member 9, and a through hole 38 that is approximately circular in cross section and formed in the longitudinal direction of the tubular member 9 at the center of the cross section of the mounting main body 37 and the protrusions 35.

[0071] As shown in Figures 10 and 11, the protrusions 35 (35a, 35b, 35c, 35d and 35e) of this embodiment are formed at equal angles (approximately 72 degrees) along the inner wall of the tubular member 9 throughout the cross section, and the circumferential length in a direction perpendicular to the longitudinal direction of the tubular member 9 gradually decreases in the direction away from the mounting main body 37, and have a roughly triangular shape in a plan view as shown in Figure 10.

[0072] Furthermore, as shown in Figures 10 and 11, the protrusion portions 35 (35a, 35b, 35c, 35d, and 35e) of this embodiment have inclined surfaces 35as, 35bs, 35cs, 35ds, and 35es (hereinafter referred to as "inclined surfaces 35as, etc.") whose length from the center of the cross section of the tubular member gradually increases in the direction away from the mounting main body portion (-F direction), and the inclined surfaces have a roughly triangular shape when viewed from above, as shown in Figure 11.

[0073] The material for forming the biological model attachment portion 33 can be the same as that for the biological model attachment portion 3 of the first embodiment, and in this embodiment, silicone rubber is used.

[0074] In this embodiment, the biological model attachment portion 33 is described as being separate from the tubular member 9 and fixed to the tubular member 9, but it may also be molded integrally with the tubular member 9, similar to the biological model attachment portion 3 in the first embodiment.

[0075] Furthermore, similar to the biological model 2 of the first embodiment, the biological model 32 is a model that simulates a narrowed or blocked area in a patient's blood vessel, and has an approximately cylindrical shape with a diameter D2 smaller than D1, and is flexible enough to deform when it comes into contact with the biological model attachment portion 33.

[0076] The biological model 32 can be made of the same material as that of the biological model 2 of the first embodiment.

[0077] When attaching the biological model 32 to the biological model device 30, the biological model 32 is inserted into the inner cavity 4 of the tubular member 9 and pushed in the direction F up to the biological model attachment portion 33 using a pusher (not shown), thereby attaching the biological model 32 to the biological model device 30 as shown in Figure 12.

[0078] At this time, since the diameter of the biological model 32 is D2, which is smaller than the inner diameter D1 of the tubular member 9, the biological model 32 moves in the direction F and toward the center of the cross section of the tubular member 9 along the inclined surfaces 35as of the protrusions 35 of the biological model mounting portion 33, and the tip of the biological model 32 is deformed by the protrusions 35 of the biological model mounting portion 33, so that the material of the biological model 32 penetrates between each of the five protrusions 35, and the biological model 32 is attached to the biological model mounting portion 33 in a state where it is spaced apart from the inner wall of the tubular member 9, as shown in Figure 12.

[0079] In this embodiment, the number of the protrusions 35 is five, but it is not limited to five, and may be two or more.

[0080] Furthermore, in the biological model device 30 of the above-described embodiment, a biological model 32 having an approximately cylindrical shape with a diameter D2 is used, and further, a form has been described in which the tip of the biological model 32 deforms to match the shape of the protrusion 35 of the biological model attachment portion 33. However, as with the biological model 12, the tip shape of the biological model itself may be matched to the shape of the protrusion 35 of the biological model attachment portion 33, and an approximately triangular pyramid-shaped recess may be provided at the tip of the biological model.

[0081] In this case, five recesses having shapes corresponding to the shapes of the five protrusions 35 are provided at the end, so that the biological model can be attached to the biological model attachment portion 33 more easily.

[0082] The biological model device 30 of this embodiment is equipped with a long tubular member 9 and a biological model attachment section 33 that is placed in the inner cavity 4 of the tubular member 9 and to which the biological model 32 can be attached and detached, so that the biological model 32 can be easily replaced and training using various biological models 32 can be easily carried out.

[0083] Furthermore, according to the biological model device 30 of this embodiment, an attachment main body portion 37 is provided which is formed along the inner wall of the entire cross section of the tubular member 9 and has a through hole 38 in the longitudinal direction of the tubular member 9, thereby minimizing the impact on training using the biological model 32 and making it easy to carry out training using various biological models 32.

[0084] Furthermore, according to the biological model device 30 of this embodiment, the biological model attachment portion 33 has a plurality of protrusions 35 extending from the attachment main body portion 37 in the longitudinal direction of the tubular member 9, abutting against the inner wall of the tubular member 9. This allows the biological model 32 to be firmly attached to the biological model attachment portion 33, and training using various biological models 32 can be carried out over long periods of time.

[0085] Furthermore, according to the biological model device 30 of this embodiment, the circumferential length of the protrusion portion 35 in a direction perpendicular to the longitudinal direction of the tubular member 9 gradually decreases in the direction away from the mounting main body portion 37, so that the biological model 32 can be easily attached to the biological model attachment portion 33.

[0086] Furthermore, according to the biological model device 30 of this embodiment, the length of the protrusion portion 35 from the center of the cross section of the tubular member 9 gradually increases in the direction away from the mounting main body portion 37, so that the biological model can be easily attached to the biological model mounting portion 33 even if the outer diameter of the biological model is changed.

[0087] (Fourth embodiment) Next, a fourth embodiment of the present invention will be described. Note that the drawings used in this embodiment are also exaggerated to facilitate understanding, and the dimensions are different from the actual dimensions.

[0088] A fourth embodiment of the present invention will be described below, but parts common to the first embodiment will be given the same reference numerals and descriptions thereof will be omitted.

[0089] The biological model device 40 of the fourth embodiment differs from the biological model device 1 of the first embodiment in the shape of the protrusion of the biological model attachment part. That is, the protrusion 5 of the biological model attachment part 3 of the first embodiment has a substantially uniform truncated fan shape in cross section in the longitudinal direction of the tubular member 9, but the protrusion of the biological model attachment part of the present embodiment has a length that gradually increases from the center of the cross section of the tubular member in the direction away from the attachment main body.

[0090] Figure 13 is a longitudinal cross-sectional view of the biological model device of the fourth embodiment, Figure 14 is an E-E cross-sectional view of Figure 13, and Figure 15 is a diagram showing the state in which the biological model is attached to the biological model attachment part in the biological model device of the fourth embodiment.

[0091] As shown in Figures 1 and 13 to 15, the biological model device 40 of this embodiment is also a device for performing operational training in which an operator inserts medical instruments such as a guide wire G and a catheter in the direction F and penetrates into a biological model, and is composed of a long tubular member 9 made of a flexible material and a biological model attachment part 43 that is placed in the inner cavity 4 of the tubular member 9 and to which a biological model 32 can be attached and detached.

[0092] As shown in Figures 13 to 15, the biological model mounting portion 43 comprises an mounting main body 47 which is formed along the inner wall of the tubular member 9 over the entire cross section, has a predetermined thickness in the radial direction, and has a predetermined length in the longitudinal direction of the tubular member 9, five protrusions 45 (45a, 45b, 45c, 45d and 45e) which abut against the inner wall of the tubular member 9 from the mounting main body 47 and extend in the longitudinal direction (-F direction) of the tubular member 9, and a through hole 48 which is approximately circular in cross section and formed in the longitudinal direction of the tubular member 9 at the center of the cross section of the mounting main body 47 and the protrusions 45.

[0093] As shown in Figures 13 and 14, the protrusions 45 (45a, 45b, 45c, 45d and 45e) in this embodiment are each formed at equal angles (approximately 72 degrees) along the inner wall of the tubular member 9 across the entire cross section, and the length from the center of the cross section of the tubular member 9 increases stepwise in the direction away from the mounting main body 47 (-F direction).

[0094] Furthermore, as shown in Figures 13 and 14, the protrusion portions 45 (45a, 45b, 45c, 45d, and 45e) of this embodiment each have step surfaces 45as, 45bs, 45cs, 45ds, and 45es (hereinafter referred to as "step surfaces 45as, etc.") consisting of three outwardly convex curved surfaces, and as shown in Figure 13, each of the three outwardly convex curved surfaces has an approximately rectangular shape when viewed from above.

[0095] The material for forming the biological model attachment portion 43 can be the same as that for the biological model attachment portion 3 of the first embodiment, and in this embodiment, silicone rubber is used.

[0096] In this embodiment, the biological model attachment portion 43 is described as being separate from the tubular member 9 and fixed to the tubular member 9, but it may also be molded integrally with the tubular member 9, similar to the biological model attachment portion 3 of the first embodiment.

[0097] Furthermore, in this embodiment, the step surface 45as, etc. is described as being formed by three curved surfaces, but the step surface 45as, etc. is not limited to three curved surfaces, and may be any surface that forms two or more steps in the radial direction of the tubular member 9.

[0098] When attaching the biological model 32 to the biological model device 40, the biological model 32 is inserted into the inner cavity 4 of the tubular member 9 and pushed in the direction F up to the biological model attachment portion 43 using a pusher (not shown), thereby attaching the biological model 32 to the biological model device 40 as shown in Figure 15.

[0099] At this time, since the diameter of the biological model 32 is D2, which is smaller than the inner diameter D1 of the tubular member 9, the biological model 32 moves in the direction F and toward the center of the cross section of the tubular member 9 along the step surfaces 45as of the protrusions 45 of the biological model mounting portion 43, and the tip of the biological model 32 is deformed by the protrusions 45 of the biological model mounting portion 43, so that the material of the biological model 32 penetrates between each of the five protrusions 45, and the biological model 32 is attached to the biological model mounting portion 43 in a state where it is spaced apart from the inner wall of the tubular member 9, as shown in Figure 15.

[0100] In this embodiment, the number of the protrusions 45 is five, but it is not limited to five, and may be two or more.

[0101] In the biological model device 40 of the above-described embodiment, a biological model 32 having an approximately cylindrical shape with a diameter D2 is used, and further, a form has been described in which the tip of the biological model 32 deforms to match the shape of the protrusion 45 of the biological model attachment portion 43. However, as with the biological model 12, the tip shape of the biological model itself may be matched to the shape of the protrusion 45 of the biological model attachment portion 43, and a recess having an approximately rectangular shape in plan view may be provided at the tip of the biological model.

[0102] In this case, five recesses having shapes corresponding to the shapes of the five protrusions 45 are provided at the end, so that the biological model can be attached to the biological model attachment portion 43 more easily.

[0103] According to the biological model device 40 of this embodiment, it is equipped with a long tubular member 9 and a biological model attachment portion 43 that is placed in the inner cavity 4 of the tubular member 9 and to which the biological model 32 can be attached and detached, so that the biological model 32 can be easily replaced and training using various biological models 32 can be easily carried out.

[0104] Furthermore, according to the biological model device 40 of this embodiment, an attachment main body portion 47 is provided which is formed along the inner wall of the entire cross section of the tubular member 9 and has a through hole 48 in the longitudinal direction of the tubular member 9, thereby minimizing the impact on training using the biological model 32 and making it easy to carry out training using various biological models 32.

[0105] Furthermore, according to the biological model device 40 of this embodiment, the biological model attachment portion 43 has a plurality of protrusions 45 extending from the attachment main body portion 47 in the longitudinal direction of the tubular member 9, abutting against the inner wall of the tubular member 9. This allows the biological model 32 to be firmly attached to the biological model attachment portion 43, and training using various biological models 32 can be carried out over long periods of time.

[0106] Furthermore, according to the biological model device 40 of this embodiment, the length of the protrusion portion 45 from the center of the cross section of the tubular member 9 gradually increases in the direction away from the mounting main body portion 47, so that the biological model can be easily attached to the biological model mounting portion 43 even if the outer diameter of the biological model is changed.

[0107] The above describes various embodiments of the biological model device of the present invention, but the present invention is not limited to the above embodiments and can be implemented with various modifications within the scope of the gist of the present invention.

[0108] For example, the feature of the protrusion portion in which the circumferential length in a direction perpendicular to the longitudinal direction of the tubular member gradually decreases in the direction away from the mounting main body portion can be applied to the biological model device 40 of the fourth embodiment, in which case the biological model can be easily attached to the biological model attachment portion. [Explanation of symbols]

[0109] 1, 20, 30, 40... Biological model device 2,12,32···Biological model 3, 23, 33, 43... Biological model attachment part 4...lumen 5,25,35,45...protrusion 7, 27, 37, 47 Mounting body 8, 28, 38, 48...Through holes 9. Tubular member 13. Biological model main body 16. Recess G···Guidewire

Claims

1. an elongated tubular member; a biological model attachment portion that is disposed in the lumen of the tubular member and to which the biological model can be detachably attached; A biological model device comprising:

2. The biological model device described in claim 1, characterized in that the biological model mounting portion is formed along the inner wall of the entire cross-section of the tubular member and has an mounting main body portion with a through hole in the longitudinal direction of the tubular member.

3. The biological model device according to claim 2, characterized in that the biological model attachment portion has a plurality of protrusions extending from the attachment main body portion in the longitudinal direction of the tubular member, abutting against the inner wall of the tubular member.

4. 4. The biological model device according to claim 3, wherein the circumferential length of the protrusion in a direction perpendicular to the longitudinal direction of the tubular member gradually decreases in a direction away from the attachment body.

5. 5. The biological model apparatus according to claim 3, wherein the length of the protrusion from the center of the cross section of the tubular member gradually increases in a direction away from the attachment body.

6. 5. The biological model apparatus according to claim 3, wherein the length of the protrusion from the center of the cross section of the tubular member increases stepwise in a direction away from the attachment body.

7. Equipped with a biological model, 7. The biological model device according to claim 3, wherein the biological model has an end portion having a shape corresponding to the shape of the protrusion.

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