Human body model for surgical training

Abstract

To provide a human body model for surgery training allowing an operator to easily move an insertion position of a surgical instrument such as an endoscope for use in surgery training or a surgical training instrument in a plane direction.SOLUTION: A human body model for surgical training comprises: an outer shell member for defining a body cavity space in which a target organ for surgical training can be placed, the outer shell member including an insertion hole for inserting a tip end of a surgical training instrument into the body cavity space from the outside of the outer shell member; a surgical instrument holding member attached to the insertion hole and holding the surgical training instrument inserted into the insertion hole in a prescribed attitude relative to the outer shell member; and an engagement mechanism provided between the insertion hole and the surgical instrument holding member and movably holding the surgical instrument holding member along an extension direction of the outer shell member relative to the insertion hole.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a surgical training human body model for carrying out surgical training. [Background technology]

[0002] In surgical training, surgeons are required to acquire and improve advanced surgical techniques. Conventionally, surgical training has been carried out using human training models that replicate the structure and texture of the human body in order to acquire and improve surgical techniques.

[0003] For example, Patent Document 1 discloses a simple abdominal model that includes a box whose size is determined based on the abdomen of a human body and which has an opening on its top surface, an elastic mesh cover that is modeled on the abdominal wall in a pneumoperitoneum and is arranged to cover the opening, an organ model that is arranged inside the box, a spacer that is arranged between the inner surface of the box and the organ model and positions the organ model in three dimensions, and a support means that movably supports the organ model inside the box. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2011-113056 Summary of the Invention [Problem to be solved by the invention]

[0005] However, in the conventional human body model for surgical training such as that disclosed in Patent Document 1, surgical instruments for surgical training such as an endoscope used in surgical training are inserted into the mesh cover provided on the top surface of the box, so when moving the insertion position of the surgical instrument for surgical training, the surgical instrument for surgical training must be pulled out from the mesh cover and then inserted again into the desired position on the mesh cover, which is a problem.

[0006] The present invention has been made in consideration of the above-mentioned problems, and has as its object to provide a human body model for surgical training in which the insertion position of the surgical instrument for surgical training can be easily moved in a planar direction. [Means for solving the problem]

[0007] In order to achieve the above object, the present invention is summarized as follows. [1] An outer shell member that defines a body cavity space in which a target organ for surgical training can be placed, the outer shell member having an insertion hole for inserting a tip end of a surgical instrument for surgical training from the outside of the outer shell member into the body cavity space; a surgical instrument holding member attached to the insertion hole for holding the surgical instrument for surgical training inserted into the insertion hole in a predetermined position relative to the outer shell member; an engagement mechanism provided between the insertion hole and the surgical instrument holding member, the engagement mechanism movably holding the surgical instrument holding member relative to the insertion hole along the extension direction of the outer shell member; A human body model for surgical training, comprising:

[0008] According to the surgical training human body model of [1], by providing the engagement mechanism that holds the surgical instrument holding member movably along the extension direction of the outer shell member relative to the insertion hole, the position of the surgical training surgical instrument in the planar direction can be easily moved while the surgical training surgical instrument is held.

[0009] [2] In the surgical training human body model according to [1], the surgical instrument holding member has a width greater than a width of the insertion hole, The engagement mechanism includes: a slide groove formed in a middle portion of the surgical instrument holding member in a thickness direction and adapted to a width of the insertion hole; an edge of the insertion hole that is inserted into the slide groove and slidably engages with the surgical instrument holding portion; It consists of A human body model for surgical training.

[0010] According to the surgical training human body model of [2], the surgical instrument holding member can be slidably held along the slide groove by engaging the edge of the insertion hole with the slide groove formed in the middle of the thickness direction of the surgical instrument holding member. This allows the user to easily adjust the position of the surgical instrument holding member along the slide groove.

[0011] [3] In the surgical training human body model according to [2], The insertion hole is provided elongated in one direction, The engagement mechanism holds the surgical instrument holding member so that the surgical instrument holding member can move only in the longitudinal direction of the insertion hole. A human body model for surgical training.

[0012] According to the surgical training human body model according to [3], the insertion hole is elongated in one direction, and the surgical instrument holding member is held so that it can move only in the longitudinal direction of the insertion hole. This makes it possible to move the surgical instrument holding member to any position in one direction while restricting movement of the insertion hole in other directions.

[0013] [4] The surgical training human body model according to [3], The slide grooves are a pair of parallel slide grooves that are provided parallel to each other and extend in the longitudinal direction of the insertion hole. A human body model for surgical training.

[0014] According to the surgical training human body model according to [4] above, by providing the pair of parallel slide grooves, the surgical instrument holding member can be stably held in the insertion hole so as to be slidable.

[0015] [5] In the surgical training human body model according to [3] above, The width of the insertion hole in the longitudinal direction is equal to or less than the width of the outer shell member along the longitudinal direction, and the ratio of the width in the short direction to the width in the longitudinal direction is 1:1.2 or more. A human body model for surgical training.

[0016] According to the surgical training human body model of [5], by setting the ratio of the width in the short direction to the width in the long direction to be 1:1.2 or more, it is possible to obtain the effect that the surgical instrument holding member can be moved to any position in one direction (long direction) while restricting the movement of the insertion hole in the other direction (short direction).

[0017] [6] In the surgical training human body model according to [5] above, The ratio of the width in the short direction to the width in the long direction of the insertion hole is 1:1.5 or more. A human body model for surgical training.

[0018] According to the surgical training human body model of [6], by making the ratio of the width in the short direction to the width in the long direction 1:1.5 or more, the effect of being able to move the surgical instrument holding member to any position in one direction (long direction) while restricting movement of the insertion hole in the other direction (short direction) is further enhanced. [Effects of the Invention]

[0019] According to the present invention, it is possible to provide a human body model for surgical training that allows the surgical training instrument, such as an endoscope used in surgical training, to be easily moved in a plane direction. [Brief explanation of the drawings]

[0020] [Figure 1] FIG. 1 is a plan view showing a human body model for surgical training according to a first embodiment of the present invention. [Figure 2] FIG. 2 is a side view showing the surgical training human body model according to the first embodiment of the present invention. [Figure 3] FIG. 3 is a perspective view showing a surgical instrument holding member of the surgical training human body model according to the first embodiment of the present invention. [Figure 4] Figure 4(a) is a plan view showing a surgical instrument holding member of the surgical training human body model according to the first embodiment of the present invention, Figure 4(b) is a side view of the surgical instrument holding member of Figure 4(a) as seen from direction A, and Figure 4(c) is a side view of the surgical instrument holding member of Figure 4(a) as seen from direction B. [Figure 5] FIG. 5(a) is a plan view showing the engagement mechanism of the surgical training human body model according to the first embodiment of the present invention, and FIG. 5(b) is a view taken along the arrows in FIG. 5(a). [Figure 6] 6(a) and 6(b) are plan views showing the operation of the engagement mechanism of the surgical training human body model according to the first embodiment of the present invention. [Figure 7] FIG. 7(a) is a plan view showing the insertion hole of the outer member of the engagement mechanism of the surgical training human body model in accordance with the second embodiment of the present invention, and FIG. 7(b) is a plan view showing the surgical instrument holding member of the engagement mechanism. [Figure 8] 8(a) to 8(c) are plan views showing the operation of the engagement mechanism of the surgical training human body model according to the second embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0021] A surgical training human body model according to a preferred embodiment of the present invention will now be described with reference to the drawings.

[0022] [First embodiment] A surgical training human body model according to a first embodiment of the present invention will be described with reference to Figures 1 and 2. Figure 1 is a plan view showing the surgical training human body model according to the first embodiment of the present invention. Figure 2 is a side view showing the surgical training human body model according to the first embodiment of the present invention.

[0023] The surgical training human body model 100 has an outer shell member 1 and a surgical instrument holding member 2.

[0024] The outer shell member 1 defines a body cavity space in which a target organ for surgical training can be placed. The outer shell member 1 has a dome-shaped convex surface 1b formed in the center of a flat surface 1a. The interior of the dome shape simulates the body cavity space.

[0025] 1, the outer shell member 1 has the convex surface 1b at a position corresponding to the human abdomen, and the inside of the dome shape simulates the abdominal cavity. Note that the shape of the outer shell member 1 is not limited to the abdomen, and it may be a shape that replicates any body part that is a target for surgical training.

[0026] The outer shell member 1 can be manufactured by processing a resin such as polyethylene, polypropylene, ABS resin, phenolic resin, or silicone into a predetermined shape by injection molding, extrusion molding, blow molding, etc. The resin may be a thermoplastic resin or a thermosetting resin.

[0027] For example, the material of the outer shell member 1 can be PET (polyethylene terephthalate). Although the outer shell member 1 shown in Figures 1 and 2 is a transparent model, the color of the outer shell member 1 can also be translucent or colored. The thickness of the outer shell member 1 can be, for example, 1.0 mm to 5.0 mm.

[0028] The convex surface 1b of the outer shell member 1 is formed with insertion holes 1c for inserting the tip of a surgical instrument 4 (see FIG. 2) for surgical training from outside the outer shell member 1 into the body cavity. Any number of insertion holes 1c can be arranged at any position on the convex surface 1b. The circular surgical instrument holding member 2 is engaged with the insertion holes 1c. The surgical instrument holding member 2 is configured to be movable through the insertion holes 1c along the extension direction of the outer shell member 1 (details will be described later).

[0029] A plurality of screw holes 1d are formed at regular intervals around the periphery of the flat portion 1a. The bottom surface of the outer shell member 1 is open, and by inserting screws or the like into the screw holes 1d formed in the flat portion 1a, the outer shell member 1 can be joined to another member (not shown).

[0030] Fig. 3 is a perspective view showing the surgical instrument holding member of the surgical training human body model according to the first embodiment of the present invention. Fig. 4(a) is a plan view showing the surgical instrument holding member of the surgical training human body model according to the first embodiment of the present invention, Fig. 4(b) is a side view of the surgical instrument holding member of Fig. 4(a) as seen from direction A, and Fig. 4(c) is a side view of the surgical instrument holding member of Fig. 4(a) as seen from direction B.

[0031] The width of the surgical instrument holding member 2 is greater than the width of the insertion hole 1c. In the example of Figures 3 and 4, the surgical instrument holding member 2 has a cylindrical shape, and its width (equivalent to the diameter) is greater than the width of the insertion hole 1c.

[0032] The surgical instrument holding member 2 is preferably made of an elastic material. The surgical instrument holding member 2 can be made of, for example, EMO, soft polyurethane, foamed polyurethane, or other foams. The density of the surgical instrument holding member 2 is 10 to 50 kg / m 3It is preferable that the surgical instrument holding member 2 is made of an elastic material such as those described above, which allows for fine adjustment of the angle and position of the surgical instrument 4 for surgical training while it is held in place. The thickness of the surgical instrument holding member 2 can be set to 10 to 50 mm. This allows the posture of the surgical instrument 4 for surgical training to be held with appropriate strength.

[0033] A cross-shaped notch 2a is formed in the center of the surgical instrument holding member 2 in a plan view (FIG. 4(a)). A through hole 2b is formed in the center of the surgical instrument holding member 2, into which the surgical instrument 4 for surgical training is inserted. The size of the through hole 2b can be adjusted appropriately depending on the size of the surgical instrument 4 for surgical training to allow the surgical instrument 4 for surgical training to be inserted and to hold the surgical instrument 4 for surgical training at a predetermined angle. The depth of the notch 2a may be formed up to a slide groove 2c, which will be described later, or may be formed across the entire thickness direction of the surgical instrument holding member 2. By forming the cross-shaped notch 2a, when the surgical instrument 4 for surgical training is inserted into the through hole 2b, the notch 2a widens the through hole 2b, allowing the surgical instrument 4 for surgical training to be inserted smoothly into the through hole 2b.

[0034] A slide groove 2c is formed in the middle of the thickness of the surgical instrument holding member 2, cut out to fit the width of the insertion hole 1c. The slide groove 2c is formed by cutting out a portion that overlaps the outer edge of the insertion hole 1c in a plan view, in the middle of the thickness. The shape of the slide groove 2c may be any shape as long as it can engage with the insertion hole 1c.

[0035] FIG. 5(a) is a plan view showing the engagement mechanism of the surgical training human body model according to the first embodiment of the present invention, and FIG. 5(b) is a view taken along the arrows in FIG. 5(a).

[0036] The engagement mechanism 3 is composed of the outer shell member 1 and the surgical instrument holding member 2. The engagement mechanism 3 is provided between the insertion hole 1c and the surgical instrument holding member 2, and holds the surgical instrument holding member 2 movably relative to the insertion hole 1c along the extension direction of the outer shell member 1. Specifically, the engagement mechanism 3 is composed of a slide groove 2c (described later) formed in the middle of the thickness direction of the surgical instrument holding member 2 and formed to fit the width of the insertion hole 1c, and an edge of the insertion hole 1c that is inserted into the slide groove 2c and slidably engages with the surgical instrument holding member 2.

[0037] The insertion hole 1c may have any shape as long as the surgical instrument holding member 2 can move along the insertion hole 1c. However, the insertion hole 1c in the first embodiment is an elongated hole that is elongated in one direction. Both ends of the elongated insertion hole 1c are formed into semicircular shapes that convex outward. The ratio of the width in the short direction to the width in the long direction of the elongated insertion hole 1c can be 1:1.2 or more. More preferably, the ratio of the width in the short direction to the width in the long direction of the insertion hole 1c can be 1:1.5 or more. By using such an elongated hole shape, the surgical instrument holding member 2 can be moved to any position in one direction (longitudinal direction) while restricting movement of the insertion hole 1c in the other direction (shortitudinal direction).

[0038] As shown in Figure 5(a), a pair of slide grooves 2c are formed on the top and bottom of the surgical instrument holding member 2. The two slide grooves 2c are arranged parallel to each other and are a pair of parallel slide grooves extending in the longitudinal direction of the insertion hole 1c. By providing the pair of parallel slide grooves, the surgical instrument holding member 2 can be slidably held in the insertion hole 1c in a stable manner.

[0039] As mentioned above, the width (equivalent to the diameter) of the surgical instrument holding member 2 is larger than the width of the insertion hole 1c, but since the surgical instrument holding member 2 is made of an elastic material, the user can freely attach and detach the surgical instrument holding member 2 from the insertion hole 1c.

[0040] 6(a) and 6(b) are plan views showing the operation of the engagement mechanism of the surgical training human body model according to the first embodiment of the present invention.

[0041] The surgical instrument holding member 2 can be slid in the longitudinal direction of the insertion hole 1c from the state shown in Fig. 6(a) to the state shown in Fig. 6(b) while the slide groove 2c remains engaged with the outer edge of the insertion hole 1c. The target organ for surgical training (not shown) is placed in the outer shell member 1, and by moving the surgical instrument holding member 2 to any position in the longitudinal direction of the insertion hole 1c, the surgical instrument holding member 2 can be moved to any position relative to the target organ for surgical training.

[0042] The positioning by sliding the surgical instrument holding member 2 may be performed before or after the surgical instrument 4 for surgical training is inserted into the through-hole 2b.

[0043] The surgical instrument holding member 2 has an appropriate strength, and therefore, the surgical instrument 4 for surgical training can be held at a predetermined angle or position, and the angle or position can be finely adjusted.

[0044] [Second embodiment] Fig. 7(a) is a plan view showing the insertion hole of the outer shell member of the engagement mechanism of a surgical training human body model according to a second embodiment of the present invention, and Fig. 7(b) is a plan view showing the surgical instrument holding member of the engagement mechanism. In the first embodiment, the insertion hole 1c formed in the outer shell member 1 has an elongated hole shape that is elongated in one direction, but in the second embodiment, as shown in Fig. 7(a), the insertion hole 5 formed in the outer shell member 1 has a perfect circular shape. Note that the outer shell member 1 is the same as in the first embodiment except for the shape of the insertion hole 5, and therefore description thereof will be omitted.

[0045] As shown in Figure 7(b), the surgical instrument holding member 6 of the second embodiment is circular in plan view, similar to the first embodiment, and has a cross-shaped notch 6a in the center and a through hole 6b through which the surgical training surgical instrument 4 is inserted.

[0046] The second embodiment differs from the first embodiment in the shape of the slide groove 6c formed in the surgical instrument holding member 6. As in the first embodiment, the slide groove 6c is formed in the middle of the thickness of the surgical instrument holding member 2, and is formed to fit the width of the insertion hole 5. The slide groove 6c in the second embodiment differs from the first embodiment in that it is cut out by a certain length around the entire circumference of the surgical instrument holding member 6, which is circular in plan view, toward the center of the circle of the surgical instrument holding member 6.

[0047] 8(a) and 8(b) are plan views showing the operation of the engagement mechanism of the surgical training human body model according to the second embodiment of the present invention.

[0048] The engagement mechanism 7 in the second embodiment is composed of the insertion hole 5 formed in the outer shell member and the slide groove 6c formed in the surgical instrument holding member 6. In the engagement mechanism 7, the outer edge of the insertion hole 5 engages with the slide groove 6c. With the outer edge of the insertion hole 5 engaged with the slide groove 6c, the surgical instrument holding member 6 can be slid relative to the insertion hole 1c of the outer shell member 1.

[0049] In this way, in the engagement mechanism 7 of the second embodiment, the insertion hole 5 formed in the outer shell member is circular, and the slide groove 6c formed in the surgical instrument holding member 6 is configured by cutting out in the circumferential direction, so that the position of the surgical instrument holding member 6 can be adjusted to any position in the entire circumferential direction of the surgical instrument holding member 6. Positioning by sliding the surgical instrument holding member 2 may be performed before or after the surgical instrument 4 for surgical training is inserted into the through hole 6b.

[0050] The present invention is not limited to the above-described embodiment, and any design changes may be made as long as the effects of the present invention are achieved. [Explanation of symbols]

[0051] 1 Outer shell member 1a Flat part 1b Convex 1c, 5 insertion holes 1d screw hole 2, 6 Surgical instrument holding member 2a, 6a notch 2b, 6b through hole 2c, 6c slide groove 3, 7 Engagement mechanism 4 Surgical instruments for surgical training 100 Surgical Training Human Models

Claims

1. an outer shell member that defines a body cavity space in which a target organ for surgical training can be placed, the outer shell member having an insertion hole for inserting a tip end of a surgical instrument for surgical training from the outside of the outer shell member into the body cavity space; a surgical instrument holding member attached to the insertion hole for holding the surgical instrument for surgical training inserted into the insertion hole in a predetermined position relative to the outer shell member; an engagement mechanism provided between the insertion hole and the surgical instrument holding member, the engagement mechanism movably holding the surgical instrument holding member relative to the insertion hole along the extension direction of the outer shell member; A human body model for surgical training, comprising:

2. The surgical training human body model according to claim 1, the surgical instrument holding member has a width greater than a width of the insertion hole, The engagement mechanism includes: a slide groove formed in a middle portion of the surgical instrument holding member in a thickness direction and adapted to a width of the insertion hole; an edge of the insertion hole that is inserted into the slide groove and slidably engages with the surgical instrument holding portion; It consists of A human body model for surgical training.

3. 3. The surgical training human body model according to claim 2, The insertion hole is provided elongated in one direction, The engagement mechanism holds the surgical instrument holding member so that the surgical instrument holding member can move only in the longitudinal direction of the insertion hole. A human body model for surgical training.

4. 4. The surgical training human body model according to claim 3, The slide grooves are a pair of parallel slide grooves that are provided parallel to each other and extend in the longitudinal direction of the insertion hole. A human body model for surgical training.

5. In the surgical training human body model according to claim 3, the width of the insertion hole in the longitudinal direction is equal to or less than the width of the outer shell member along the longitudinal direction, and the ratio of the width in the short direction to the width in the longitudinal direction is 1:1.2 or more; A human body model for surgical training.

6. The surgical training human body model according to claim 5, The ratio of the width in the short direction to the width in the long direction of the insertion hole is 1:1.5 or more. A human body model for surgical training.

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