Sample for laceration evaluation

Abstract

To provide a sample for laceration evaluation capable of suppressing deterioration of evaluation accuracy.SOLUTION: A sample for laceration evaluation 10 includes: an extending bone 30; a covered body 41 that covers the bone 30; and a covering part 40 having a parting line that is formed on the outer surface of the covered body 41. The covered body 41 has a shape with a shorter direction and a longer direction in a cross-section orthogonal to the direction in which bone 30 extends. The parting line is formed on the outer surface of the covered body 41 at least one of between one end 42 in the shorter direction and one end 43 in the longer direction, between the other end 44 in the shorter direction and the one end 43 in the longer direction, between the other end 44 in the shorter direction and the other end 45 in the longer direction, and between one end 42 in the shorter direction and the other end 45 in the longer direction.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present disclosure relates to a sample for laceration evaluation. to the loop

Background Art

[0002] Conventionally, a sample for laceration evaluation for evaluating a laceration when a human finger is caught in a movable part is known. For example, as an example of a sample for laceration evaluation, Patent Document 1 discloses a safety evaluation dummy including a bone part, an endothelial part surrounding the outer periphery of the bone part, and an outer skin part surrounding the outer periphery of the endothelial part.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, in a conventional sample for laceration evaluation such as the safety evaluation dummy of Patent Document 1, in order to reduce the cost of the mold for injection molding the covering part that covers the bone part in the sample for laceration evaluation, the number of mold divisions is reduced. Generally, as shown in FIG. 13(a), a parting line 301 is formed at the longitudinal end of the outer surface of the covering part 300, or as shown in FIG. 13(b), a parting line 401 is formed at the short-side end of the outer surface of the covering part 400. The longitudinal end and the short-side end of the covering part are generally parts that come into contact with the jig during evaluation. When a parting line is formed at the part that comes into contact with the jig during evaluation, the sample for laceration evaluation is likely to be lacerated, and the accuracy of the evaluation decreases.

[0005] Therefore, the present disclosure provides a sample for laceration evaluation that can suppress a decrease in evaluation accuracy. the loop

Means for Solving the Problems

[0006] A sample for wound evaluation according to one aspect of the present disclosure includes an extending bone portion, a covering portion main body that covers the bone portion, and a covering portion formed with a parting line on an outer surface of the covering portion main body. The covering portion main body has a shape having a short side direction and a long side direction in a cross section orthogonal to an extending direction in which the bone portion extends. The parting line is between one end portion in the short side direction and one end portion in the long side direction on the outer surface of the covering portion main body, between the other end portion in the short side direction and the one end portion in the long side direction, between the other end portion in the short side direction and the other end portion in the long side direction, and between the one end portion in the short side direction and the other end portion in the long side direction of the covering portion main body. between formed.

Advantages of the Invention

[0009] According to the sample for wound evaluation of the present disclosure, to the loop it is possible to suppress a decrease in the accuracy of evaluation.

Brief Description of the Drawings

[0010]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Figure 12

Figure 13

DETAILED DESCRIPTION OF THE INVENTION

[0011] The embodiments described below are all specific examples of the present disclosure. The numerical values, shapes, materials, components, arrangement positions and connection forms of the components, steps, order of steps, etc. shown in the following embodiments are examples, and are not intended to limit the present disclosure. In addition, among the components in the following embodiments, the components not described in the independent claims are described as optional components.

[0012] In the following description, expressions indicating the relative postures of two directions, such as parallel and orthogonal, may be used. However, these expressions include cases where the postures are not strictly those. For example, when it is said that two directions are parallel, unless otherwise specified, it means not only that the two directions are completely parallel, but also that they are substantially parallel, that is, for example, including a difference of about several percent.

[0013] (Embodiment) FIG. 1 is a perspective view showing a laceration evaluation sample 10 according to an embodiment. With reference to FIG. 1, the overall configuration of the laceration evaluation sample 10 will be described.

[0014] As shown in FIG. 1, the laceration evaluation sample 10 includes a gripping portion 20, a bone portion 30, and a covering portion 40.

[0015] The gripping part 20 is a gripping part for the user to hold by hand. The gripping part 20 is an example of a placement part that can be placed on a plane 1 (described later).

[0016] The bone part 30 extends from the gripping part 20. In this embodiment, a part of the bone part 30 is inserted into the gripping part 20, and another part of the bone part 30 extends protruding from the gripping part 20. The bone part 30 is formed to mimic a human bone. Note that, for example, the bone part 30 may not be inserted into the gripping part 20, or may be adhered to the outer surface of the gripping part 20.

[0017] The covering part 40 covers the bone part 30. Specifically, the covering part 40 covers the part of the bone part 30 that extends from the gripping part 20. The covering part 40 is formed to mimic the skin or the like that covers a human bone.

[0018] The overall configuration of the laceration evaluation sample 10 has been described above. Hereinafter, each configuration will be described in detail.

[0019] FIG. 2 is an exploded perspective view showing the laceration evaluation sample 10 of FIG. 1. FIG. 3 is a view of the laceration evaluation sample 10 of FIG. 1 seen from the extending direction. First, with reference to FIGS. 2 and 3, the gripping part 20 will be described in detail.

[0020] As shown in FIG. 2, the gripping part 20 has a cylindrical shape with both ends open. Note that the gripping part 20 may have a bottomed cylindrical shape with one end open and the other end closed. For example, the gripping part 20 is integrally formed of plastic or the like. Note that the material of the gripping part 20 is not limited to plastic. Also, the gripping part 20 may be formed by assembling a plurality of parts. The gripping part 20 has a first plane 21, a second plane 22, a third plane 23, and a fourth plane 24.

[0021] The first plane 21 is an outer surface parallel to the extending direction in which the bone portion 30 extends. The extending direction is the direction indicated by the X-axis in FIG. 2 and the like. The second plane 22 is an outer surface parallel to the orthogonal direction orthogonal to the first plane 21 and parallel to the extending direction. The orthogonal direction is the direction indicated by the Y-axis in FIG. 2 and the like.

[0022] The third plane 23 is an outer surface parallel to the extending direction and parallel to the first plane 21. The third plane 23 is the outer surface on the opposite side of the first plane 21. The fourth plane 24 is an outer surface parallel to the extending direction and parallel to the second plane 22. The fourth plane 24 is the outer surface on the opposite side of the second plane 22.

[0023] As shown in FIG. 3, the gripping portion 20 can be placed on the plane 1 with the first plane 21 in contact with the plane 1. Further, the gripping portion 20 can also be placed on the plane 1 with the second plane 22 in contact with the plane 1, and can also be placed on the plane 1 with the third plane 23 in contact with the plane 1, and can also be placed on the plane 1 with the fourth plane 24 in contact with the plane 1. In this embodiment, the gripping portion 20 can be placed on the plane 1 with the first plane 21 in surface contact with the plane 1, can be placed on the plane 1 with the second plane 22 in surface contact with the plane 1, can be placed on the plane 1 with the third plane 23 in surface contact with the plane 1, and can be placed on the plane 1 with the fourth plane 24 in surface contact with the plane 1.

[0024] The first plane 21 is flush with the outer surface of the covering portion 40 when viewed from the extending direction. Specifically, the first plane 21 is flush with one end portion 42 in the short side direction of the outer surface of the covering portion main body 41 when viewed from the extending direction.

[0025] Each of the second plane 22, the third plane 23, and the fourth plane 24 is also flush with the outer surface of the covering portion 40 when viewed from the extending direction. Specifically, the second plane 22 is flush with one end portion 43 in the longitudinal direction of the outer surface of the covering portion main body 41 when viewed from the extending direction. The third plane 23 is flush with the other end portion 44 in the short side direction of the outer surface of the covering portion main body 41 when viewed from the extending direction. The fourth plane 24 is flush with the other end portion 45 in the longitudinal direction of the outer surface of the covering portion main body 41 when viewed from the extending direction.

[0026] The gripping portion 20 is rectangular with the first plane 21 and the second plane 22 as two sides when viewed from the extending direction. In this embodiment, the gripping portion 20 is rectangular with the first plane 21, the second plane 22, the third plane 23, and the fourth plane 24 as four sides when viewed from the extending direction.

[0027] The gripping portion 20 has been described in detail above.

[0028] FIG. 4 is a cross-sectional view taken along line IV-IV of FIG. 1. Next, with reference to FIGS. 2 and 4, the bone portion 30 will be described in detail.

[0029] As shown in FIG. 2, the bone portion 30 is long and rod-shaped. For example, the bone portion 30 is formed of a metal such as stainless steel, or a resin such as polycarbonate, ABS, or rigid urethane. The bone portion 30 has a fitting portion 31 and a bone portion main body 32.

[0030] The fitting portion 31 is inserted into the gripping portion 20 and is detachably fitted with the gripping portion 20. The fitting portion 31 is long and rod-shaped.

[0031] The bone portion main body 32 is inserted into the covering portion 40 and is detachably fitted with the covering portion 40. The bone portion main body 32 is long and rod-shaped. The bone portion main body 32 is integrally formed with the fitting portion 31. The bone portion main body 32 extends protruding from the gripping portion 20 in a state where the fitting portion 31 is inserted into the gripping portion 20.

[0032] As shown in FIG. 4, the bone portion main body 32 has a shape having a longitudinal direction and a lateral direction in a cross section orthogonal to the extending direction. The lateral direction is the direction indicated by the Y axis in FIG. 4 and the longitudinal direction is the direction indicated by the Z axis in FIG. 4 and the like.

[0033] At each of one end portion 33 in the lateral direction, one end portion 34 in the longitudinal direction, the other end portion 35 in the lateral direction, and the other end portion 36 in the longitudinal direction of the outer surface of the bone portion main body 32, it is curved convexly outward.

[0034] The curvature of the one end portion 33 is different from each of the curvatures of the one end portion 34 and the other end portion 36. Further, the curvature of the other end portion 35 is different from each of the curvatures of the one end portion 34 and the other end portion 36. Incidentally, for example, the curvature of the one end portion 33 may not be different from each of the curvatures of the one end portion 34 and the other end portion 36, and the curvature of the other end portion 35 may not be different from each of the curvatures of the one end portion 34 and the other end portion 36.

[0035] Each of the one end portion 33 and the other end portion 35 is a portion having a predetermined width B centered on the minor axis A of the bone portion main body 32. For example, the predetermined width is 2 mm. Further, for example, the radius of curvature of each of the one end portion 33 and the other end portion 35 is R2.7 mm.

[0036] Each of the one end portion 34 and the other end portion 36 is a portion having a predetermined width D centered on the major axis C of the bone portion main body 32. For example, the predetermined width is 2 mm. Further, for example, the radius of curvature of each of the one end portion 34 and the other end portion 36 is R4.0 mm.

[0037] The bone portion 30 has been described in detail above.

[0038] Next, with reference to FIGS. 2 to 4, the covering portion 40 will be described in detail.

[0039] As shown in FIGS. 2 to 4, the covering portion 40 has a covering portion main body 41 and a parting line. For example, the covering portion 40 is formed of silicon or the like.

[0040] The covering portion main body 41 covers the bone portion 30. The covering portion main body 41 is elongated. One end portion of the covering portion main body 41 is closed, and the other end portion of the covering portion main body 41 is open, and the covering portion main body 41 has a bottomed cylindrical shape. The outer surface of the covering portion main body 41 extends in the extending direction of the bone portion. Note that the covering portion main body 41 may be a cylindrical shape with both ends of one end portion and the other end portion open, and in that case, a part of the bone portion 30 may protrude from both ends of the covering portion main body 41.

[0041] The covering portion main body 41 has a shape having a short side direction and a long side direction in a cross section orthogonal to the extending direction. The short side direction is the direction indicated by the Y axis in FIG. 2 and the like, and the long side direction is the direction indicated by the Z axis in FIG. 2 and the like.

[0042] At each of one end portion 42 in the short side direction, one end portion 43 in the long side direction, the other end portion 44 in the short side direction, and the other end portion 45 in the long side direction of the outer surface of the covering portion main body 41, it is curved convex outward.

[0043] The curvature of the one end portion 42 is different from each of the curvature of the one end portion 43 and the curvature of the other end portion 45. Also, the curvature of the other end portion 44 is different from each of the curvature of the one end portion 43 and the curvature of the other end portion 45. Note that, for example, the curvature of the one end portion 42 may not be different from each of the curvature of the one end portion 43 and the curvature of the other end portion 45, and the curvature of the other end portion 44 may not be different from each of the curvature of the one end portion 43 and the curvature of the other end portion 45.

[0044] Each of the one end portion 42 and the other end portion 44 is a portion having a predetermined width centered on the minor axis of the covering portion main body 41. The minor axis coincides with the minor axis A, and the predetermined width coincides with the predetermined width B.

[0045] Each of one end portion 43 and the other end portion 45 is a portion with a predetermined width centered on the long axis of the covering portion main body 41. The long axis coincides with the long axis C, and the predetermined width coincides with the predetermined width D.

[0046] The parting line is formed on the outer surface of the covering portion main body 41. Among the parting lines, the first line 46 is formed between one end portion 42 and one end portion 43 on the outer surface of the covering portion main body 41. Among the parting lines, the second line 47 is formed between one end portion 43 and the other end portion 44 on the outer surface of the covering portion main body 41. Among the parting lines, the third line 48 is formed between the other end portion 44 and the other end portion 45 on the outer surface of the covering portion main body 41. Among the parting lines, the fourth line 49 is formed between one end portion 42 and the other end portion 45 on the outer surface of the covering portion main body 41.

[0047] Each of the first line 46, the second line 47, the third line 48, and the fourth line 49 extends in the extending direction of the bone portion 30.

[0048] The covering portion 40 has been described in detail above.

[0049] FIG. 5 is a view showing a mold 100 for manufacturing the covering portion 40 provided in the sample 10 for laceration evaluation of FIG. 1. FIG. 6 is a cross-sectional view showing the mold 100 of FIG. 5. With reference to FIGS. 5 and 6, the mold 100 will be described.

[0050] As shown in FIGS. 5 and 6, the mold 100 has a first mold 110, a second mold 120, a third mold 130, a fourth mold 140, and a fifth mold 150. The mold 100 is a mold for manufacturing the covering portion 40. The first mold 110, the second mold 120, the third mold 130, and the fourth mold 140 form a molding surface for molding the outer surface of the covering portion 40.

[0051] The forming surface has a shape having a short side direction corresponding to the short side direction of the covering portion 40 and a long side direction corresponding to the long side direction of the covering portion 40. The short side direction of the forming surface is the direction indicated by the Y1 axis in FIG. 5 and the like, and the long side direction of the forming surface is the direction indicated by the Z1 axis in FIG. 5 and the like.

[0052] The forming surface is elongated in a direction perpendicular to the short side direction of the forming surface and perpendicular to the long side direction of the forming surface. This direction is the direction indicated by the X1 axis in FIG. 5 and the like.

[0053] The first mold 110 has a first surface 112 that constitutes one end portion 111 in the short side direction of the forming surface. That is, the end portion 111 is constituted by one surface. The end portion 111 is a portion for forming one end portion 42 of the outer surface of the covering portion main body 41.

[0054] The second mold 120 has a second surface 122 that constitutes one end portion 121 in the long side direction of the forming surface. That is, the end portion 121 is constituted by one surface. The end portion 121 is a portion for forming one end portion 43 of the outer surface of the covering portion main body 41.

[0055] The third mold 130 has a third surface 132 that constitutes the other end portion 131 in the short side direction of the forming surface. That is, the other end portion 131 is constituted by one surface. The other end portion 131 is a portion for forming the other end portion 44 of the outer surface of the covering portion main body 41.

[0056] The fourth mold 140 has a fourth surface 142 that constitutes the other end portion 141 in the long side direction of the forming surface. That is, the other end portion 141 is constituted by one surface. The other end portion 141 is a portion for forming the other end portion 45 of the outer surface of the covering portion main body 41.

[0057] The forming surface for forming the outer surface of the covering portion 40 is constituted by the first surface 112, the second surface 122, the third surface 132, and the fourth surface 142.

[0058] Each of the end portion 111, the end portion 121, the other end portion 131, and the other end portion 141 is curved concave outward.

[0059] The curvature of one end portion 111 is different from each of the curvature of one end portion 121 and the curvature of the other end portion 141. Also, the curvature of the other end portion 131 is different from each of the curvature of one end portion 121 and the curvature of the other end portion 141. Note that, for example, the curvature of one end portion 111 may not be different from each of the curvature of one end portion 121 and the curvature of the other end portion 141, and the curvature of the other end portion 131 may not be different from each of the curvature of one end portion 121 and the curvature of the other end portion 141.

[0060] Each of one end portion 111 and the other end portion 131 is a portion with a predetermined width B1 centered on the minor axis A1 of the forming surface.

[0061] Each of one end portion 121 and the other end portion 141 is a portion with a predetermined width D1 centered on the major axis C1 of the forming surface.

[0062] The boundary between the first surface 112 and the second surface 122 is located between one end portion 111 and one end portion 121 on the forming surface, and the boundary between the second surface 122 and the third surface 132 is located between the other end portion 131 and one end portion 121 on the forming surface.

[0063] The boundary between the third surface 132 and the fourth surface 142 is located between the other end portion 131 and the other end portion 141 on the forming surface, and the boundary between the fourth surface 142 and the first surface 112 is located between one end portion 111 and the other end portion 141 on the forming surface.

[0064] The fifth mold 150 forms a forming surface for forming the inner surface of the covering portion 40.

[0065] The mold 100 has been described above.

[0066] FIG. 7 is a diagram for explaining a method of manufacturing the covering portion 40 using the mold 100 of FIG. 5. With reference to FIG. 7, a method of manufacturing the covering portion 40 using the mold 100 will be described. Note that, in FIG. 7, dots are added to the covering portion 40.

[0067] First, as shown in Fig. 7(a), the first mold 110, the second mold 120, the third mold 130, and the fourth mold 140 are fitted to each other to form a molding surface for molding the outer surface of the covering portion 40. Then, the fifth mold 150 is disposed inside the molding surface.

[0068] Next, as shown in Fig. 7(b), a molding material for molding the covering portion is supplied inside the molding surface.

[0069] Finally, as shown in Fig. 7(c), the first mold 110, the second mold 120, the third mold 130, and the fourth mold 140 are disassembled from each other, and the fifth mold 150 is removed, whereby the covering portion 40 is formed.

[0070] By forming the covering portion 40 in this way, a first line 46 is formed at a position corresponding to the boundary between the first surface 112 and the second surface 122 on the outer surface of the covering portion main body 41, a second line 47 is formed at a position corresponding to the boundary between the second surface 122 and the third surface 132, a third line 48 is formed at a position corresponding to the boundary between the third surface 132 and the fourth surface 142, and a fourth line 49 is formed at a position corresponding to the boundary between the fourth surface 142 and the first surface 112.

[0071] The manufacturing method of the covering portion 40 using the mold 100 has been described above.

[0072] Fig. 8 is a view showing the sample 10 for crack evaluation and the crack evaluation device 200 of Fig. 1. With reference to Fig. 8, a crack evaluation method using the crack evaluation device 200 will be described.

[0073] As shown in Fig. 8(a), the crack evaluation device 200 includes an actuator 201, a load cell 202, and a jig 203.

[0074] The actuator 201 moves the jig 203 up and down. The load cell 202 measures the load applied to the jig 203 when the jig 203 collides with the sample 10 for crack evaluation.

[0075] As shown in FIG. 8(b), for example, the radius of curvature of the tip of the jig 203 is R0.2 mm, the angle E is 30 degrees, and the dimension F is 40 mm. Further, for example, the jig 203 is formed of stainless steel.

[0076] As shown in FIG. 8(a), when performing a crack evaluation using the crack evaluation device 200, the crack evaluation sample 10 is placed on the plane 1 so that the covering portion 40 is positioned below the jig 203, and the jig 203 is moved downward to collide with the crack evaluation sample 10. For example, the jig 203 is made to collide with the crack evaluation sample 10 at a speed of 2 mm / s.

[0077] Note that, for example, the jig 203 may be made to collide with the crack evaluation sample 10 at a speed between 2 mm / s and 15 mm / s so as to apply a load of 20 ± 3 N to the crack evaluation sample 10.

[0078] Based on the state of the covering portion 40 after the jig 203 has collided, a crack evaluation can be performed.

[0079] The crack evaluation method using the crack evaluation device 200 has been described above.

[0080] The crack evaluation sample 10 according to the embodiment includes an extending bone portion 30, a covering portion main body 41 that covers the bone portion 30, and a covering portion 40 having parting lines formed on the outer surface of the covering portion main body 41. The covering portion main body 41 has a shape having a short side direction and a long side direction in a cross section orthogonal to the extending direction in which the bone portion 30 extends. The parting lines are formed at least at one of between one end portion 42 in the short side direction and one end portion 43 in the long side direction, between the other end portion 44 in the short side direction and one end portion 43 in the long side direction, between the other end portion 44 in the short side direction and the other end portion 45 in the long side direction, and between one end portion 42 in the short side direction and the other end portion 45 in the long side direction on the outer surface of the covering portion main body 41.

[0081] According to this, when evaluating by bringing the jig 203 for crack evaluation into contact with one end portion 42 in the short side direction, one end portion 43 in the long side direction, the other end portion 44 in the short side direction, or the other end portion 45 in the long side direction on the outer surface of the covering portion main body 41, parting lines can be formed in portions other than the portion that comes into contact with the jig 203 during evaluation. Therefore, it is possible to suppress the formation of parting lines in the portion that comes into contact with the jig 203 during evaluation, and it is possible to suppress a decrease in the accuracy of the evaluation.

[0082] Also, in the crack evaluation sample 10 according to the embodiment, each of one end portion 42 in the short side direction, one end portion 43 in the long side direction, the other end portion 44 in the short side direction, and the other end portion 45 in the long side direction is curved convexly outward, and the curvature of the one end portion 42 in the short side direction is different from each of the curvature of the one end portion 43 in the long side direction and the curvature of the other end portion 45 in the long side direction, and the curvature of the other end portion 44 in the short side direction is different from each of the curvature of the one end portion 43 in the long side direction and the curvature of the other end portion 45 in the long side direction.

[0083] According to this, since the shape of the covering portion 40 can be made closer to the shape of a human finger, it is possible to further suppress a decrease in the accuracy of the evaluation.

[0084] The mold 100 according to the embodiment is a mold for manufacturing a covering portion 40 having a shape with a short side direction and a long side direction in a cross section orthogonal to the extending direction in which the bone portion 30 extends. The mold includes a first mold 110, a second mold 120, a third mold 130, and a fourth mold 140. The first mold 110, the second mold 120, the third mold 130, and the fourth mold 140 have a shape with a short side direction corresponding to the short side direction of the covering portion 40 and a long side direction corresponding to the long side direction of the covering portion 40, and form a molding surface for molding the outer surface of the covering portion 40. The first mold 110 has a first surface 112 that constitutes one end portion 111 in the short side direction of the molding surface. The second mold 120 has a second surface 122 that constitutes one end portion 121 in the long side direction of the molding surface. The third mold 130 has a third surface 132 that constitutes the other end portion 131 in the short side direction of the molding surface. The fourth mold 140 has a fourth surface 142 that constitutes the other end portion 141 in the long side direction of the molding surface. The boundary between the first surface 112 and the second surface 122 is located on the molding surface between one end portion 111 in the short side direction of the molding surface and one end portion 121 in the long side direction of the molding surface. The boundary between the second surface 122 and the third surface 132 is located on the molding surface between the other end portion 131 in the short side direction of the molding surface and one end portion 121 in the long side direction of the molding surface. The boundary between the third surface 132 and the fourth surface 142 is located on the molding surface between the other end portion 131 in the short side direction of the molding surface and the other end portion 141 in the long side direction of the molding surface. The boundary between the fourth surface 142 and the first surface 112 is located on the molding surface between one end portion 111 in the short side direction of the molding surface and the other end portion 141 in the long side direction of the molding surface.

[0085] According to this, the same operational effects as those of the above-described sample 10 for crack evaluation are achieved.

[0086] The manufacturing method of the covering portion 40 according to the embodiment is a manufacturing method using the above-described mold 100. The molding surface is formed using the first mold 110, the second mold 120, the third mold 130, and the fourth mold 140, and a molding material for molding the covering portion 40 is supplied inward of the molding surface.

[0087] According to this, the same operational effects as those of the above-described sample 10 for crack evaluation are achieved.

[0088] (Other embodiments, etc.) The manufacturing methods of the sample for laceration evaluation, the mold, and the coating part according to one or more aspects of the present disclosure have been described based on the embodiments. However, the present disclosure is not limited to these embodiments. Without departing from the spirit of the present disclosure, various modifications conceived by those skilled in the art applied to these embodiments, or forms constructed by combining components in different embodiments, may also be included within the scope of one or more aspects of the present disclosure.

[0089] In the above-described embodiment, the case where the gripping part 20 has a first plane 21 parallel to the extending direction in which the bone part 30 extends and can be placed on the plane 1 with the first plane 21 in contact with the plane 1 has been described. However, the present disclosure is not limited thereto. For example, as shown in FIGS. 9 and 10, the placing part may define a virtual plane parallel to the extending direction and may be placed on the plane with the virtual plane in contact with the plane. Further, for example, the placing part may have both the first plane and the virtual plane.

[0090] FIG. 9 is a perspective view showing a gripping part 20a according to a modification. In FIG. 9, dots are attached to the virtual plane Pa. As shown in FIG. 9, the gripping part 20a defines a virtual plane Pa parallel to the extending direction in which the bone part 30 extends. Specifically, the gripping part 20a has an end part 26a and an end part 27a, and the virtual plane Pa is defined by the end part 26a and the end part 27a. The end part 26a extends in the extending direction. The end part 27a extends in the extending direction and is aligned with the end part 26a in a direction orthogonal to the extending direction. For example, the virtual plane Pa is a virtual plane having the end part 26a as one side, the end part 27a as one side, a virtual line L1a connecting one ends of the end part 26a and the end part 27a as one side, and a virtual line L2a connecting the other ends of the end part 26a and the end part 27a as one side.

[0091] The holding part 20a can be placed on the plane 1 with the end 26a and the end 27a in contact with the plane 1. For example, the holding part 20a can be placed on the plane 1 with the end 26a in line contact with the plane 1 and the end 27a in line contact with the plane 1. By placing the holding part 20a on the plane 1 with the end 26a and the end 27a in contact with the plane 1, a virtual plane Pa contacts the plane 1. In this way, the holding part 20a defines a virtual plane Pa parallel to the extending direction, and can be placed on the plane 1 with the virtual plane Pa in contact with the plane 1. Thereby, the same operational effects as those when using the holding part 20 can be obtained.

[0092] FIG. 10 is a perspective view showing a holding part 20b according to another modification. In FIG. 10, dots are attached to the virtual plane Pb. As shown in FIG. 10, the holding part 20b defines a virtual plane Pb parallel to the extending direction in which the bone part 30 extends. Specifically, the holding part 20b has a plurality of ends 26b and a plurality of ends 27b, and the virtual plane Pb is defined by the plurality of ends 26b and the plurality of ends 27b. The plurality of ends 26b are arranged in the extending direction. The plurality of ends 27b are arranged in the extending direction and are arranged side by side with the plurality of ends 26b in a direction orthogonal to the extending direction. For example, the virtual plane Pb has, as one side, a virtual line L1b connecting the end 26b located on the outermost one side among the plurality of ends 26b and the end 27b located on the outermost one side among the plurality of ends 27b, has, as one side, a virtual line L2b connecting the end 26b located on the outermost other side among the plurality of ends 26b and the end 27b located on the outermost other side among the plurality of ends 27b, has each of the virtual lines L3b connecting adjacent ends 26b among the plurality of ends 26b as one side, and has each of the virtual lines L4b connecting adjacent ends 27b among the plurality of ends 27b as one side, and is a virtual plane.

[0093] The holding part 20b can be placed on the plane 1 with a plurality of end parts 26b and a plurality of end parts 27b in contact with the plane 1. For example, the holding part 20b can be placed on the plane 1 with a plurality of end parts 26b in point contact with the plane 1 and a plurality of end parts 27b in point contact with the plane 1. By placing the holding part 20b on the plane 1 with a plurality of end parts 26b and a plurality of end parts 27b in contact with the plane 1, a virtual plane Pb contacts the plane 1. In this way, the holding part 20b defines a virtual plane Pb parallel to the extending direction and can be placed on the plane 1 with the virtual plane Pb in contact with the plane 1. Thereby, the same operational effects as those when using the holding part 20 can be obtained.

[0094] In addition, in the above-described embodiment, the case where the covering part 40 is a bottomed cylindrical shape has been described, but it is not limited thereto. For example, as shown in FIGS. 11 and 12, the covering part may be a cylindrical shape with both ends open. Also, in this case, the bone part may be provided so as to protrude only from one end part of the covering part, or may be provided so as to protrude from both one end part and the other end part of the covering part.

[0095] FIG. 11 is a perspective view showing a bone part 30a and a covering part 40a according to a modification. As shown in FIG. 11, the covering part 40a is a cylindrical shape with both ends open. The bone part 30a protrudes only from one of one end part and the other end part of the covering part 40a and does not protrude from the other end part of the covering part 40a.

[0096] FIG. 12 is a perspective view showing a bone part 30b and a covering part 40b according to another modification. As shown in FIG. 12, the covering part 40b is a cylindrical shape with both ends open. The bone part 30b protrudes from both one end part and the other end part of the covering part 40b. In this case, the holding part may be provided on either one end part side or the other end part side of the covering part 40b.

[0097] Also, in the above-described embodiments, the case where the gripping portions 20, 20a, and 20b are an example of the placement portion has been described, but the present invention is not limited thereto. For example, the sample for laceration evaluation may include a placement portion separately from the gripping portion. Specifically, for example, the sample for laceration evaluation may include a cylindrical gripping portion and a placement portion provided between the gripping portion and the covering portion. Further, for example, the sample for laceration evaluation may not include a gripping portion.

[0098] Also, in the above-described embodiments, the case where the gripping portion 20 has the first plane 21, the second plane 22, the third plane 23, and the fourth plane 24 has been described, but the present invention is not limited thereto. For example, the gripping portion 20 may have at least the first plane 21 among the first plane 21, the second plane 22, the third plane 23, and the fourth plane 24.

[0099] Also, in the above-described embodiments, the case where the first plane 21 is flush with the outer surface of the covering portion 40 when viewed from the extending direction has been described, but the present invention is not limited thereto. For example, the first plane 21 may not be flush with the outer surface of the covering portion 40 when viewed from the extending direction. The same applies to the second plane 22, the third plane 23, and the fourth plane 24.

[0100] Also, in the above-described embodiments, the case where the gripping portion 20 has the first plane 21, the second plane 22, the third plane 23, and the fourth plane 24 and is rectangular when viewed from the extending direction has been described, but the present invention is not limited thereto. For example, the gripping portion 20 may be formed in a triangular shape having the first plane 21 as one side when viewed from the extending direction, or may be formed in a triangular shape having the first plane 21 and the second plane 22 as two sides, or may be formed in a polygonal shape having five or more sides having the first plane 21 as one side.

[0101] Also, in the above-described embodiment, the case where the first line 46, the second line 47, the third line 48, and the fourth line 49 are formed on the outer surface of the covering portion main body 41 has been described, but the present invention is not limited thereto. For example, at least one of the first line 46, the second line 47, the third line 48, and the fourth line 49 may be formed on the outer surface of the covering portion main body 41.

Industrial Applicability

[0102] The present disclosure can be used for a laceration evaluation sample for evaluating a laceration when a human finger is pinched by a movable part.

Explanation of Reference Numerals

[0103] 10 Laceration evaluation sample 20, 20a, 20b Gripping portion 21 First plane 22 Second plane 23 Third plane 24 Fourth plane 26a, 26b, 27a, 27b End portions 30, 30a, 30b Bone portions 31 Fitting portion 32 Bone portion main body 33, 34, 42, 43, 111, 121 One end portions 35, 36, 44, 45, 131, 141 Other end portions 40, 40a, 40b Covering portions 41 Covering portion main body 46 First line 47 Second line 48 Third line 49 Fourth line 100 Mold 110 First mold 112 First surface 120 Second mold 122 Second surface 130 Third mold 132 Third surface 140 Fourth mold 142 Fourth surface 150 Fifth mold Device for evaluating 200 lacerations 201 Actuator 202 Load cell 203 Fixture

Claims

1. An extending bone portion, a covering portion main body that covers the bone portion, and a covering portion having a parting line formed on an outer surface of the covering portion main body, wherein the covering portion main body has a shape having a short-side direction and a long-side direction in a cross section orthogonal to an extending direction in which the bone portion extends, and the parting line is formed between one end portion in the short-side direction and one end portion in the long-side direction, between the other end portion in the short-side direction and the one end portion in the long-side direction, between the other end portion in the short-side direction and the other end portion in the long-side direction, and between the one end portion in the short-side direction and the other end portion in the long-side direction on the outer surface of the covering portion main body, a sample for laceration evaluation.

2. Each of the one end portion in the short-side direction, the one end portion in the long-side direction, the other end portion in the short-side direction, and the other end portion in the long-side direction is curved convexly outward, wherein a curvature of the one end portion in the short-side direction is different from each of a curvature of the one end portion in the long-side direction and a curvature of the other end portion in the long-side direction, and a curvature of the other end portion in the short-side direction is different from each of a curvature of the one end portion in the long-side direction and a curvature of the other end portion in the long-side direction, The sample for laceration evaluation according to Claim 1.

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