Medical equipment operation training device

Abstract

The present invention provides a medical device operation training device used when practicing the operation of a medical device, the medical device operation training device comprising: an affected part simulated organ holding part, which holds a sheet-shaped affected part simulated organ that can be cut or removed at least a part; and a path simulated organ holding part, which holds a path simulated organ that guides the medical device to the affected part simulated organ. Thus, the trainee only needs to perform simple preparation work and can practice various techniques.

Description

Technical Field

[0001] The present invention relates to a device for practicing the operation of medical instruments such as endoscopic surgical instruments. Background Art

[0002] Traditionally, physicians performing endoscopic examinations and endoscopic surgeries have required proficiency in the operation of various medical instruments, including the endoscope. Furthermore, with the recent rise in the use of surgical assistance devices that utilize robotic arms (mechanical forceps) for laparoscopic surgery, these devices require thorough training in operating these devices.

[0003] For example, a training device for practicing endoscopic operation has been proposed that fixes a simulated torso to a fixed base so that it can rotate freely about a horizontal axis (see Japanese Patent Application Laid-Open No. 2004-49479). Simulated organs are also placed within the simulated torso. By varying the fixed angle of the simulated torso, while reproducing the lateral or supine position, an endoscope is inserted into the simulated organs within the simulated torso, thereby practicing endoscopic operation.

[0004] For example, a device has been proposed that holds both ends of a tubular organ removed from an animal other than a human in a sealed state on a fixed table (see Japanese Patent Application Laid-Open No. 2006-81568). In this training device, while air is introduced into the tubular organ to inflate it, an endoscope is inserted into the organ to practice manipulation, thereby providing a feel close to actual clinical conditions. Summary of the Invention

[0005] Technical issues

[0006] Yet, the disclosed training device of Japanese Patent Application Laid-Open No. 2004-49479 has the problem that a large space has to be prepared for training because of the overall large-scale structure. In addition, because the trunk itself is simulated with resin etc., it is difficult to practice endoscopic surgery such as tumor excision.

[0007] Furthermore, the training device disclosed in Japanese Patent Application Laid-Open No. 2006-81568 requires the preparation of a clean tubular organ without holes, which has a problem in that training cannot be easily performed.

[0008] Furthermore, in the case of these conventional training devices, there is a problem in that it is difficult for a third party other than the person performing the operation training to recognize the operation status of the endoscope from the outside.

[0009] In view of such actual conditions, an object of the present invention is to provide a medical instrument operation training device that can complete operations with simple preparation and can perform various manipulation exercises.

[0010] Technical Solution

[0011] The present invention, which achieves the above-mentioned object, is a medical device operation training device for use in practicing the operation of medical equipment, characterized in that the medical device operation training device comprises: an affected area simulated organ holding portion that holds a sheet-shaped affected area simulated organ that can be incised or removed at least in part; and a path simulated organ holding portion that holds a path simulated organ for guiding the medical device to the affected area simulated organ.

[0012] The medical device operation training apparatus is characterized in that the affected part simulated organ holding portion includes a tension adjustment mechanism for changing the tension acting on the affected part simulated organ.

[0013] Regarding the above-mentioned medical equipment operation training device, it is characterized in that the simulated organ holding part for the affected part has at least a first holding part, a second holding part and a third holding part for holding the simulated organ for the affected part, and by configuring the first holding part, the second holding part and the third holding part to be the vertices of a triangle, a surgical surface including the triangle is formed on the surface of the simulated organ for the affected part.

[0014] Regarding the above-mentioned medical equipment operation training device, it is characterized in that the simulated organ holding part for the affected part also has a fourth holding part for holding the simulated organ for the affected part, and the first holding part, the second holding part, the third holding part and the fourth holding part are configured to surround the simulated organ for the affected part in such an order, and the first diagonal line connecting the first holding part and the third holding part and the second diagonal line connecting the second holding part and the fourth holding part are positioned in a twisted position.

[0015] The medical device operation training apparatus is characterized in that the affected part simulated organ holding portion includes a second holding portion displacement mechanism that displaces the second holding portion in a direction including at least a circumferential component of a line connecting the first holding portion and the third holding portion.

[0016] The medical device operation training apparatus is characterized in that the affected area simulated organ holding portion holds the affected area simulated organ so that its surface becomes a hyperbolic surface, a hyperbolic paraboloid surface, or a saddle-shaped surface.

[0017] The medical device operation training apparatus is characterized in that the simulated organ for the pathway includes a pathway member having a strip shape extending in the pathway direction and including a strip region with both side edges in the strip width direction rising.

[0018] The medical device operation training apparatus is characterized in that the strip-shaped region included in the path member is a widening region in which the width gradually increases from upstream toward downstream.

[0019] The medical device operation training apparatus is characterized in that the upper side of the strip-shaped region of the path member is open.

[0020] The medical device operation training apparatus is characterized in that the path member and the simulated organ for the affected part simulate a portion of the inner wall of the stomach, and the path member and the simulated organ for the affected part move relatively.

[0021] The medical device operation training apparatus is characterized in that the simulated organ for the pathway includes a tubular pathway member having a tubular shape on an upstream side of the pathway member.

[0022] The medical device operation training apparatus is characterized in that the maximum width of the path member is larger than the width of the inner wall of the cylindrical path member.

[0023] The medical device operation training apparatus is characterized in that a relative movement mechanism around a horizontal axis is provided between the simulated organ for the pathway and the simulated organ for the affected part, the relative movement mechanism around the horizontal axis changing a relative angle around a horizontal axis extending in the horizontal direction.

[0024] The present invention for achieving the above-mentioned purpose is a medical device operation training device used when practicing the operation of medical equipment, characterized in that the medical device operation training device includes a simulated organ holding portion for an affected area, which holds a sheet-shaped simulated organ for an affected area that can be cut or removed in part, and the simulated organ holding portion for an affected area holds the simulated organ for an affected area in a manner that makes the surface of the simulated organ for an affected area a hyperbolic surface, a hyperbolic paraboloid surface, or a saddle-shaped surface.

[0025] The present invention for achieving the above-mentioned purpose is a medical equipment operation training device used when practicing the operation of medical equipment, characterized in that it has a simulated organ holding part for an affected part, which holds a sheet-shaped simulated organ for an affected part that can be cut or removed in part, and the simulated organ holding part for an affected part has at least a first holding part, a second holding part, a third holding part and a fourth holding part for holding the simulated organ for an affected part, and the first holding part, the second holding part, the third holding part and the fourth holding part are configured to surround the simulated organ for an affected part in such order, and a first diagonal line connecting the first holding part and the third holding part, and a second diagonal line connecting the second holding part and the fourth holding part are positioned in a twisted position.

[0026] Technical Effects

[0027] According to the present invention, it is possible to achieve the excellent effect of providing a medical device operation training device that allows operations to be completed with simple preparations and enables various manipulation trainings. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a perspective view showing the medical device operation training device in the first bending posture according to the present embodiment.

[0029] Figure 2 1 is a plan view showing the medical device operation training device in the first bending posture.

[0030] Figure 3 This is a front view showing the medical device operation training device in the first bending posture.

[0031] Figure 4 The medical device operation training device showing the first bending posture Figure 3 IV-IV cross-sectional view.

[0032] Figure 5 It is a perspective view showing an enlarged portion of the medical device operation training apparatus to be in the first bending posture.

[0033] Figure 6 It is a plan view showing a portion of the medical device operation training device in an enlarged manner to be in the first bending posture.

[0034] Figure 7 It is a plan view showing a medical equipment operation training device serving as a modified example.

[0035] Figure 8 1 is a diagram showing a setting table of the medical device operation training apparatus.

[0036] Figure 9 A perspective view showing a training scene of the medical device operation training apparatus in the first bending posture is shown.

[0037] Figure 10 This is a perspective view showing the medical device operation training apparatus in a preparation posture for the second training method.

[0038] Figure 11 1 is a plan view showing the medical device operation training device in the preparation posture.

[0039] Figure 12 This is an enlarged perspective view showing a portion of the medical device operation training device in the preparation posture.

[0040] Figure 13The medical device operation training device is shown in the preparation posture. Figure 11 Cross-sectional view taken along the XII-XII direction.

[0041] Figure 14 It is a perspective view showing a training scene of the medical device operation training apparatus in the third training method.

[0042] Figure 15 This is a perspective view showing a practice scene of the medical device operation practice apparatus in the third practice method, as viewed from the lower back side.

[0043] Figure 16 It is a perspective view showing a training scene of the medical device operation training apparatus in the fourth training method.

[0044] Figure 17 This is a perspective view showing a training scene of the medical device operation training apparatus in another posture.

[0045] Figure 18 It is a perspective view showing a modified example of the medical equipment operation training device.

[0046] Figure 19 This is a front view showing the positional relationship between the medical device operation training device and the internal organs of the human body. DETAILED DESCRIPTION

[0047] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

[0048] <Overall composition>

[0049] exist Figures 1 to 3 1 shows the overall structure of a medical instrument operation training device (hereinafter, training device) 1. It should be noted that the training device 1 is assumed to be used for training the operation of an endoscope during endoscopic examination or endoscopic surgery, but the present invention is not limited thereto.

[0050] The training device 1 includes a base 10, a simulated organ holder 20 for a first path, a simulated organ holder 25 for a second path, a simulated organ holder 40 for an affected area, a base planar relative movement mechanism 60, a base vertical relative movement mechanism 70, a base vertical relative movement mechanism 80, and a base horizontal relative movement mechanism 90.

[0051] The base 10 has a plate structure having legs 12 at four corners. In this embodiment, the surface (upper surface) of the base 10 is horizontal, but the base 10 may be arranged with the surface inclined relative to the horizontal.

[0052] For ease of explanation, the desired direction parallel to the surface of the base 10 is defined as the X-axis, the direction parallel to the surface of the base 10 and orthogonal to the X-axis is defined as the Y-axis, and the direction perpendicular to the surface of the base 10 (XY plane) is defined as the Z-axis. In addition, the X-axis is sometimes referred to as the anterior-posterior axis, the Y-axis is sometimes referred to as the lateral axis, and the Z-axis is sometimes referred to as the base vertical axis. On the Y-axis (lateral axis), the side of the simulated organ holding part 20 for the first path is sometimes referred to as the Y-axis surgical operator side, and the side of the simulated organ holding part 40 for the affected part is sometimes referred to as the Y-axis affected part side. On the X-axis (anterior-posterior axis), the direction close to the surgical operator is sometimes referred to as the X-axis near front side, and the direction away from the surgical operator is sometimes referred to as the X-axis inner side.

[0053] <First Pathway Simulated Organ Holding Section>

[0054] The first path simulated organ holding portion 20 is arranged on the base 10 and holds the first path simulated organ 100. Here, the first path simulated organ 100 is composed of a tubular component (tubular path component) made of a flexible resin. In the present embodiment, the first path simulated organ 100 functions as a simulated organ simulating the oral cavity and esophagus. It should be noted that the case of a tubular component with a circular cross-section is exemplified here, but the present invention is not limited to this. As long as the structure is a cylindrical shape, a semi-cylindrical (partial cylindrical) shape, a groove shape, etc. with a polygonal cross-section that can guide the medical device along the desired path, it can be used. The width of the first path simulated organ holding portion 20 is preferably less than 40 mm, and more preferably less than 30 mm. From the perspective of comparing the maximum width of the second path simulated organ holding portion 25 described later with a maximum width of more than 40 mm, the first path simulated organ holding portion 20 can define a narrow-width path component.

[0055] The first-pathway simulated organ holder 20 includes holders 22A to 22E that hold the first-pathway simulated organ 100 at multiple locations along its length, and a base 23 on which these holders 22A to 22E are mounted. The arrangement of these holders 22A to 22E allows the path direction of the simulated organ 100 to be flexibly changed. In this embodiment, the upstream region of the simulated organ 100, held by holder 22A, simulates the oral cavity of a living organism, extending in the X-axis direction. The downstream side of the upstream region forms a curved path curved in the Y-axis direction by holder 22B. The midstream region, located downstream of this curved path, extends in the Y-axis direction by holders 22C and 22D, simulating the esophagus. Furthermore, the downstream region, further downstream than the midstream region, is held by holder 22E and tilted downward in the Z-axis toward the affected area on the Y-axis, simulating the inclined exit from the esophagus to the stomach.

[0056] (Angle adjustment mechanism)

[0057] The base 23 of the simulated organ holder 20 for the first path is provided with an angle adjustment mechanism 24 having a hinge structure. This angle adjustment mechanism 24 can adjust the tilt angle of the bracket 22E. Specifically, it adjusts the tilt angle m that moves downward along the Z axis as the bracket 22E moves toward the affected part on the Y axis. This tilt angle varies from person to person depending on the side-lying position of the living body, so various tilt angles can be used for training. Figure 8 As shown in the setting table, when the horizontal state is set to 0 degrees, the angle adjustment mechanism 24 can be set to 10 degrees, 20 degrees, 30 degrees, and 40 degrees below the Z axis (positive angle direction), and can be set to -10 degrees and -20 degrees above the Z axis (negative angle direction).

[0058] <Second Pathway Simulated Organ Holding Section>

[0059] Here, the second path simulated organ holding portion 25 is a component fixed to the lower end of the first path simulated organ 100, and holds the second path simulated organ 120. The second path simulated organ 120 is a plate-shaped or cylindrical path member having a desired rigidity made of resin and / or metal, and simulates a portion of the stomach wall. The second path simulated organ 120 of this embodiment is formed to include a strip-shaped region 121 (see Figure 2 ) of the path component, the strip-shaped area 121 is a shape in which the edges on both sides of the width direction are raised in the strip shape extending in the path direction. Moreover, the strip-shaped area 121 is an area in which the width gradually or stage-by-stage expands from upstream to downstream, and thus can be defined as an expansion-type path component. It should be noted that in the present embodiment, for the simulated organ 120 for the second path, since the upper part of the strip-shaped area 121 is set to be open, it can be defined as a so-called open-type path component in the shape of a partial cylinder or a curved scraper, thereby improving visual recognition from the outside. On the other hand, the simulated organ 120 for the second path is not limited to the open type, as Figure 18 As shown, it can also be a cylindrical structure (expanded diameter type) with a band-shaped region 121 in a portion, such as a cylindrical, trumpet-shaped, or (circular) truncated cone shape. Furthermore, the maximum width of the band-shaped region 121 in the second path simulated organ retaining portion 25 is preferably 40 mm or greater, and more preferably 60 mm or greater. This is because the second path simulated organ retaining portion 25 has a corresponding width to simulate the inner wall near the entrance of the stomach. As a result, the maximum width of the second path simulated organ retaining portion 25 is wider than that of the first path simulated organ 100, which simulates the esophagus, and can therefore also be defined as a wide-width path component.

[0060] The second path simulated organ 120 is arranged in a manner continuous with the downstream side of the lower end (esophageal outlet) of the first path simulated organ 100 through the second path simulated organ holding portion 25. It should be noted that the path direction (extension direction) of the lower end of the first path simulated organ 100 and the path direction (extension direction) of the second path simulated organ 120 have an angle n. Although not specifically shown here, the second path simulated organ holding portion 25 may also have an angle adjustment mechanism that can adjust the angle n. Figure 8 As shown in the setting table, the second-pathway simulated organ holding unit and the second-pathway simulated organ 120 can be selected for use or not.

[0061] <Simulated Organ Holding Unit for Affected Area>

[0062] The simulated organ holding portion 40 for the affected part holds the simulated organ 140 for the affected part that can be cut or removed in part. In the present embodiment, the simulated organ 140 for the affected part is made of a sheet having flexibility and / or stretchability. The simulated organ 140 for the affected part can use, for example, a sheet (sheet) of simulated animal organs described in Japanese Patent Application No. 2016-538138. That is, all the records of Japanese Patent Application No. 2016-538138 (WO2017 / 010190) are incorporated into this specification. For example, as a simulated animal organ, a forming process of a shaped body obtained by mixing a raw material having mannan as a main component with water and gelatinizing the mixture, and a low-temperature process of maintaining the shaped body in a low-temperature environment below room temperature can be used.

[0063] The simulated organ holding portion 40 for an affected area includes a first holding portion 42, a second holding portion 44, a third holding portion 46, and a fourth holding portion 48. The first holding portion 42, the second holding portion 44, the third holding portion 46, and the fourth holding portion 48 hold the sheet-shaped simulated organ for an affected area 140 in the circumferential direction (the direction of the sheet's peripheral edge) in this order. The first holding portion 42, the second holding portion 44, the third holding portion 46, and the fourth holding portion 48 are clamping members having an elastic clamp structure, and they hold the simulated organ for an affected area 140 by clamping the peripheral edge of the sheet.

[0064] Here, for the sake of convenience, the straight line connecting the first retaining part 42 and the third retaining part 46 is defined as the first diagonal line T1, the straight line connecting the second retaining part 44 and the fourth retaining part 48 is defined as the second diagonal line T2, and the straight line intersecting the midpoint M of the first diagonal line T1 and parallel to the Y-axis is defined as the reference axis C.

[0065] The affected area simulated organ holder 40 further includes a first base 41 supporting the first and third holders 42 and 46, and a second base 43 supporting the second and fourth holders 44 and 48. A tension adjustment mechanism 56 is provided between the second and fourth holders 43 and 48.

[0066] The first base 41 is a U-shaped or C-shaped member extending parallel to the first diagonal line T1, avoiding the region encompassing the first holding portion 42 and the third holding portion 46. Specifically, the first base 41 secures a simulated organ holding space between the first holding portion 42 and the third holding portion 46 and supports the first and third holding portions 42, 46 at its ends. The first base 41 is rotatable about the Y-axis via a relative movement mechanism 90 about a transverse axis, described later.

[0067] The second base 43 is held by the first base 41. The second base 43 is a U-shaped or C-shaped member that avoids interference with the area including the second diagonal line T2, which connects the second holding portion 44 to the fourth holding portion 48. More specifically, the second base 43 includes a seat portion 43A fixed to the first base 41 and extending in the Y-axis direction, a first arm 43B rotatably disposed on the Y-axis operator side of the seat portion 43A, and a second arm 43C rotatably disposed on the Y-axis affected area side of the seat portion 43A.

[0068] (Holding part displacement mechanism)

[0069] The first arm 43B is an L-shaped component, one end of which is held so as to be able to swing freely relative to the first rotation axis 51B of the seat portion 43A. A second holding portion 44 is provided at the other end of the first arm 43B. The first rotation axis 51B is parallel to the first diagonal line T1. Figure 2 As shown, when viewed axially from the first diagonal line T1, the first rotation axis 51B is directed to one side ( Figure 2 Return Figure 1 One side 43B1 of the L-shaped first arm 43B is angled relative to the first diagonal line T1 and extends in a direction substantially perpendicular to the first diagonal line T1. The other side 43B2 of the L-shaped first arm 43B extends in a direction parallel to the first diagonal line T1, and a second retaining portion 44 is fixed to the distal end near the midpoint M of the first diagonal line T1. Figure 6As shown by the dashed line, if the first arm 43B is swung, the second retaining portion 44, located closer to the operator's side of the Y-axis than the first diagonal line T1, can freely reciprocate in a direction that includes at least the circumferential component U of the first diagonal line T1 (i.e., it does not only move in a radial direction of the first diagonal line T1). In other words, the seat 43A, the first rotating shaft 51B, and the first arm 43B form the second retaining portion displacement mechanism 50B that displaces the second retaining portion 44 in a direction that includes at least the circumferential component U of the first diagonal line T1.

[0070] The second arm 43C is an L-shaped member, one end of which is held so as to be able to swing freely relative to the second rotation axis 51C of the seat portion 43A. A fourth holding portion 48 is provided at the other end of the second arm 43C. The second rotation axis 51C is parallel to the first diagonal line T1. Figure 6 As shown in the enlarged view, when the first diagonal line T1 is observed axially, the second rotation axis 51C is offset to one side (the same side as the first rotation axis 51B) with the reference axis C as the boundary. One side 43C1 of the L-shape of the second arm 43C is angled relative to the first diagonal line T1 and extends in a direction substantially perpendicular to the first diagonal line T1. The other side 43C2 of the L-shape of the second arm 43C extends in a direction parallel to the first diagonal line T1, and the fourth retaining portion 48 is fixed to the distal end on the side of the midpoint M of the first diagonal line T1 via the tension adjustment mechanism 56. Therefore, as shown in FIG. Figure 6 As shown, when the second arm 43C is swung, the fourth holding portion 48, located on the Y-axis affected area side relative to the first diagonal line T1, can freely reciprocate in a direction that includes at least the circumferential component U of the first diagonal line T1. In other words, the seat 43A, the second rotating shaft 51C, and the second arm 43C form a fourth holding portion displacement mechanism 50C that displaces the fourth holding portion 48 in a direction that includes the circumferential component U of the first diagonal line T1.

[0071] (Tension adjustment mechanism)

[0072] like Figure 5As shown, the tension adjustment mechanism 56 is a direct-acting mechanism that causes the fourth retaining portion 48 to reciprocate in a straight line parallel to one side 43C1 of the second arm 43C. As a result, the tension adjustment mechanism 56 allows the fourth retaining portion 48 to freely reciprocate in a direction that includes a radial component R of the first diagonal line T1. The position close to the first diagonal line T1 is defined as the "near side," and the position farther from the first diagonal line T1 is defined as the "far side." It should be noted that while this example illustrates the tension adjustment mechanism 56 being provided on the fourth retaining portion 48 side, it can also be provided on the second retaining portion 44 side, or on both the second retaining portion 44 and the fourth retaining portion 48. Alternatively, the tension adjustment mechanism can be provided on the first retaining portion 42 and / or the third retaining portion 46 side. In this case, the tension adjustment mechanism only needs to reciprocate in a direction that includes at least a radial component relative to the second diagonal line T2 connecting the second retaining portion 44 and the fourth retaining portion 48.

[0073] It should be noted that the second holding portion displacement mechanism 50B allows the second holding portion 44 to reciprocate freely in a direction of a radial component R that includes the first diagonal line T1, and the fourth holding portion displacement mechanism 50C allows the fourth holding portion 48 to reciprocate freely in a direction of a radial component R that includes the first diagonal line T1. Therefore, in this embodiment, the second holding portion displacement mechanism 50B and the fourth holding portion displacement mechanism 50C also function as differential tension adjustment mechanisms.

[0074] (Configuration description of the holding unit)

[0075] Next, the arrangement of the first holding portion 42, the second holding portion 44, the third holding portion 46, and the fourth holding portion 48 of the simulated organ holding portion 40 for an affected area will be described. It should be noted that, for ease of explanation, when the first diagonal line T1 connecting the first holding portion 42 and the third holding portion 46 is viewed axially from a specific direction, the side bounded by the reference axis C may be referred to as the "surgical surface side," and the other side bounded by the reference axis C may be referred to as the "surgical surface side."

[0076] like Figure 1 As shown, three positions selected from the four holding positions of the first holding portion 42, the second holding portion 44, the third holding portion 46, and the fourth holding portion 48 become the vertices of a triangle. By using these three positions to hold the simulated organ 140 for the affected part, a surgical surface is formed on the simulated organ 140 for the affected part.

[0077] The selection of these three locations can vary. For example, a first surgical surface S1 is formed at the three holding locations of the first holding portion 42, the second holding portion 44, and the third holding portion 46. Furthermore, a second surgical surface S2 is formed at the three holding locations of the second holding portion 44, the third holding portion 46, and the fourth holding portion 48. Furthermore, a third surgical surface S3 is formed at the three holding locations of the first holding portion 42, the third holding portion 46, and the fourth holding portion 48. Furthermore, a fourth surgical surface S4 is formed at the three holding locations of the first holding portion 42, the second holding portion 44, and the fourth holding portion 48.

[0078] That is, in this embodiment, four holding positions are provided: the first holding portion 42, the second holding portion 44, the third holding portion 46, and the fourth holding portion 48. However, the present invention is not limited to this. As long as there are at least three holding portions, a flat surface for surgery can be provided. It should be noted that these first to fourth surgical surfaces S1 to S4 can also be curved or bent surfaces.

[0079] On the other hand, if the simulated organ 140 for the affected area is held at at least four locations: the first holding portion 42, the second holding portion 44, the third holding portion 46, and the fourth holding portion 48, two surgical surfaces are simultaneously formed based on the holding positions of the three locations, thereby increasing the area of the surgical surface. Although not specifically shown in the figure, arranging five or more holding portions can further increase the area of the surgical surface.

[0080] A first diagonal line T1 connecting the first holding portion 42 and the third holding portion 46 is at an angle, here a right angle, to the Y axis. A second diagonal line T2 connecting the second holding portion 44 and the fourth holding portion 48 is at an angle, here a right angle, to the first diagonal line T1.

[0081] like Figure 6 As shown in the enlarged view, when the first diagonal line T1 is viewed axially from a specific direction, the positioning position of the second holding portion 44 is the reference position P closest to the reference axis C. SET , a first displacement position P1 on one side that is swung at a first angle relative to the reference axis C, a second displacement position P2 on one side that is swung at a second angle (larger than the first angle) relative to the reference axis C and displaced, and a third displacement position P3 on one side that is swung at a third angle (larger than the second angle) relative to the reference axis C and displaced.

[0082] In addition, the positioning position of the fourth holding portion 48 is the reference position Q closest to the reference axis C. SET, a first displacement position Q1 at which the reference axis C is displaced to one side at a first angle, and a second displacement position Q2 at which the reference axis C is swung and displaced to one side at a second angle (larger than the first angle). These positions are also reflected in Figure 8 settings table.

[0083] (Description of the preparation posture)

[0084] For example, Figures 10 to 13 The second holding portion 44 is shown positioned at the reference position P SET The fourth holding portion 48 is positioned at the reference position Q SET The second diagonal line T2 is substantially parallel to the reference axis C, and intersects with or is closest to the first diagonal line T1. The first rotation axis 51B and the second rotation axis 51C are both offset toward the surgical surface relative to the first diagonal line T1, so that the second holding portion 44 and the fourth holding portion 48 approach the first diagonal line T1 through the rotation of the first arm 43B and the second arm 43C. As a result, when setting the simulated organ 140 for the affected part, there is no need for excessive tension in the direction of the second diagonal line T2, so that it becomes easy to use the second holding portion 44 and the fourth holding portion 48 to clamp the simulated organ 140 for the affected part (preparation posture). It should be noted that for ease of explanation, in Figure 12 and Figure 13 The simulated organ 140 for the affected part is omitted. Figure 13 The second pathway simulated organ 120 is omitted in the cross section.

[0085] In this preparation position, when the simulated organ 140 for the affected part is held by the first, second, third, and fourth holding portions 42, 44, 46, and 48, a desired tension is applied in the direction of the first diagonal line T1, and a tension less than the tension in the direction of the first diagonal line T1 (including a tension of zero, depending on the situation) is applied in the direction of the second diagonal line T2. The first and third surgical planes S1, S3 formed on the simulated organ 140 for the affected part are both substantially parallel to the first diagonal line T1, the reference axis C, and the second diagonal line T2, and are combined to form a single plane.

[0086] (Description of the first bending posture)

[0087] If the first arm 43B is swung to position the second holding portion 44 at the one-side second displacement position P2, and the second arm 43C is swung to position the fourth holding portion 48 at the one-side second displacement position Q2, then Figures 1 to 9 The first bending posture is shown by the solid line. Figure 2As shown, in this first bent position, the second diagonal line T2 is in a twisted position approximately parallel to the reference axis C and offset by a second distance H2 toward the surgical surface relative to the first diagonal line T1. Furthermore, compared to the standby position, the rotation of the first arm 43B and the second arm 43C causes the second retaining portion 44 and the fourth retaining portion 48 to move away from the first diagonal line T1. As a result, the radial tension acting on the affected-site simulated organ 140 relative to the first diagonal line T1 increases.

[0088] like Figure 1 and Figure 4 As shown, the first surgical surface S1 and the third surgical surface S3 formed on the simulated organ 140 for the affected part are inclined surfaces whose displacement from the reference axis C toward the surgical surface increases as they move away from the first diagonal line T1 toward the reference axis C. In other words, when viewed axially from the first diagonal line T1, the boundary line K1 between the second surgical surface S2 and the fourth surgical surface S4 forms a curved surface that is convex toward the other side of the surgical surface. Figure 4 As shown, when viewed axially from the reference axis C (or Y axis), the boundary line K2 between the first surgical surface S1 and the third surgical surface S3 becomes a curved surface that is concavely curved toward one side of the surgical surface. As a result, the center of the plane formed by combining the first surgical surface S1 and the third surgical surface S3 becomes a curved surface in the shape of a (single leaf) hyperboloid, a hyperbolic paraboloid, or a saddle. On this curved surface, desired tension acts in two directions: the axial direction of the first diagonal line T1 and the radial direction of the first diagonal line T1 (from the midpoint M toward the second retaining portion 44 and the fourth retaining portion 48). This results in a shape and tensioned state that is very close to the inner wall of the inflated stomach. It should be noted that in Figure 4 In FIG. 1 , for convenience of explanation, the simulated organ 120 for the second pathway is omitted.

[0089] (Description of the Second Bending Posture)

[0090] like Figure 6 As shown by the dotted line, if the first arm 43B is swung to position the second retaining portion 44 at the first displacement position P1 on one side, and the second arm 43C is swung to position the fourth retaining portion 48 at the first displacement position Q1 on one side, a second bent posture is achieved. In this second bent posture, the second diagonal line T2 is approximately parallel to the reference axis C and is twisted relative to the first diagonal line T1 by a first distance H1 toward the surgical surface. Furthermore, compared to the preparation posture, the rotation of the first arm 43B and the second arm 43C moves the second retaining portion 44 and the fourth retaining portion 48 away from the first diagonal line T1. As a result, the radial tension acting on the affected-site simulated organ 140 relative to the first diagonal line T1 increases.

[0091] This second bending posture is substantially the same as the first bending posture, but the second diagonal line T2 is twisted relative to the first diagonal line T1, offset toward the surgical plane by a first distance H1 that is less than the second distance H2. As a result, the (single-leaf) hyperboloid, hyperbolic paraboloid, or saddle-shaped curved surface formed at the center of the plane formed by combining the first surgical plane S1 and the third surgical plane S3 has a greater degree of expansion (radius of curvature) than in the second bending posture.

[0092] (Description of the third bending posture)

[0093] like Figure 6 As shown by the dotted line, if the first arm 43B is swung to position the second holding portion 44 at the third displacement position P3 on one side, and the second arm 43C is swung to position the fourth holding portion 48 at the second displacement position Q2 on one side, a third bending posture is achieved.

[0094] This third bending posture is similar to the first bending posture, but the second diagonal line T2 forms an angle α with respect to the reference axis C. Furthermore, the second retaining portion 44 is closer to the first diagonal line T1 than in the first bending posture. As a result, the radial tension generated by the second retaining portion 44 is smaller than the radial tension generated in the first bending posture. Consequently, the degree of opening (radius of curvature) of the (single-leaf) hyperboloid, hyperbolic paraboloid, or saddle-shaped curved surface formed at the center of the plane formed by combining the first surgical surface S1 and the third surgical surface S3 changes with respect to the first and second bending postures.

[0095] (Description of the fourth bending posture)

[0096] like Figure 6 As shown by the dotted line, if the first arm 43B is swung to position the second holding portion 44 at the second displacement position P2 on one side, and the second arm 43C is swung to position the fourth holding portion 48 at the first displacement position Q1 on one side, it becomes Figure 17 As shown in the fourth bending posture, the first surgical plane S1 and the third surgical plane S3 can be oriented toward the operator's side in the Y-axis direction as a whole.

[0097] It should be noted that although only a portion of the holding postures are illustrated here, the holding posture of the simulated organ holding portion 40 for the affected part can be variously changed by combining one holding position arbitrarily selected from the four holding positions of the second holding portion 44 and one holding position arbitrarily selected from the three holding positions of the fourth holding portion 48.

[0098] For example, if the second holding portion 44 is set to the third displacement position P3 on one side, and the fourth holding portion 48 is set to the reference position Q SETBy making the second diagonal line T2 tilt relative to the reference axis C, the first surgical plane S1 and the third surgical plane S3 can be made to face the Y-axis direction surgeon side more than the fourth bending posture. SET By setting the fourth holding portion 48 to the second displacement position Q2 on one side, the first surgical plane S1 and the third surgical plane S3 can be oriented toward the patient side along the Y axis by tilting the second diagonal line T2 relative to the reference axis C.

[0099] (Modification / Explanation of Relaxed Posture)

[0100] Should be explained, such as Figure 7 As shown in the modified example, the second holding portion 44 may be provided with another side displacement position P that is displaced to the other side relative to the reference axis C. OFF Similarly, the fourth holding portion 48 may also be provided with another side displacement position Q that is displaced to the other side relative to the reference axis C. OFF . In this way, the second diagonal line T2 becomes a twisted position that is approximately parallel to the reference axis C and offset to the other side of the surgical surface relative to the first diagonal line T1. In addition, by the rotation of the first arm 43B and the second arm 43C, the second holding part 44 and the fourth holding part 48 approach the first diagonal line T1. In this posture, if the simulated organ 140 is held by the first holding part 42, the second holding part 44, the third holding part 46, and the fourth holding part 48, it becomes a state where the desired tension acts in the direction of the first diagonal line T1, and it becomes a state where extremely small tension acts in the radial direction of the first diagonal line T1 (including a state of zero tension). If observed axially from the first diagonal line T1, the first surgical surface S1 and the third surgical surface S3 become concave inclined surfaces in which the displacement from the reference axis C to the other side of the surgical surface increases as they move away from the first diagonal line T1 toward the reference axis C. In the case where it is desired to practice the surgical surface in a state with extremely loose tension, it is sufficient to set such a holding posture.

[0101] <Relative movement mechanism in the base plane direction>

[0102] like Figure 1 As shown, the base plane relative movement mechanism 60 changes the relative position of the simulated organ 100 for the first path and the simulated organ holder 40 for the affected part on the XY plane. Specifically, the base plane relative movement mechanism 60 is an XY translation stage having an X-axis linear motion portion 62 disposed on the base 10 and realizing relative movement of the simulated organ holder 20 for the first path in the X-axis direction, and a Y-axis linear motion portion 64 disposed on the X-axis linear motion portion 62 and realizing relative movement of the simulated organ holder 20 for the first path in the Y-axis direction. Figure 8As shown in the setting table, with the reference point set to 0, the X-axis linear motion unit 62 is set to 10mm and 20mm on the X-axis rear side, and to -10mm, -20mm, -30mm, -40mm, and -50mm on the X-axis front side. With the reference point set to 0, the Y-axis linear motion unit 64 is set to 10mm to 200mm on the Y-axis affected area side, in 10mm intervals.

[0103] <Vertical relative movement mechanism of the base>

[0104] like Figure 1 As shown, the base vertical direction relative movement mechanism 70 changes the relative position of the first path simulated organ 100 and the affected part simulated organ holding portion 40 in the Z-axis direction. Specifically, the base vertical direction relative movement mechanism 70 includes a Z-axis direct motion portion, which is arranged on the base plane direction relative movement mechanism 60 to achieve the Z-axis relative movement of the first path simulated organ holding portion 20. Figure 8 As shown in the setting table, when the reference point is set to 0, the base vertical direction relative moving mechanism 70 is set to 80 mm at intervals of 10 mm on the upper side of the Z axis.

[0105] <Vertical relative movement mechanism around the base>

[0106] like Figure 1 As shown, the relative movement mechanism 80 about the base vertical axis changes the relative angle about the Z-axis between the simulated organ 100 for the first path and the simulated organ holder 40 for the affected part. Specifically, the relative movement mechanism 80 about the base vertical axis includes: position adjustment pins 82 arranged at equal intervals along the circumference of the base 10, centered on a vertical rotation axis E parallel to the Z-axis; a retaining ring 88 rotatably arranged about the vertical rotation axis E on the base 10 to retain the simulated organ holder 40 for the affected part; and a pair of position adjustment holes 84A and 84B provided at the lower end of the retaining ring 88 for receiving the pair of position adjustment pins 82 located on a specific diameter of the circumferential trajectory.

[0107] Here, a total of 12 position adjustment pins 82 are arranged at positions V1 to V12 at intervals of 30 degrees in the circumferential direction around the vertical rotation axis E. As a result, by engaging one position adjustment hole 84A with a specific position adjustment pin 82 selected from V1 to V12 (in Figure 1 V6 in the figure), so that the other position adjustment hole 84B is engaged with the opposite position adjustment pin 82 (in the figure) located on the same diameter as the specific position adjustment pin 82. Figure 1 V12 in the figure) can change the fixed angle of the retaining ring 88 relative to the base 10 around the vertical rotation axis E into 12 different values. Figure 8 This is also reflected in the setup table shown.

[0108] <Relative Movement Mechanism Around the Horizontal Axis>

[0109] The relative movement mechanism 90 about the horizontal axis changes the relative angle about the rotation axis (horizontal rotation axis / lateral axis) along the XY plane between the first-path simulated organ 100 and the affected-site simulated organ holding portion 40 .

[0110] Specifically, the mechanism 90 for relative movement around the horizontal axis includes: a retaining ring 88 that retains the simulated organ holding portion 40 for the affected part; and a pair of engaging portions 92A and 92B that are provided at both ends of the first base 41 of the simulated organ holding portion 40 for the affected part and engage with the retaining ring 88. The retaining ring 88 is ring-shaped and is erected on the base 10 in such a manner that the center axis (horizontal rotation axis / transverse axis) O of the ring is parallel to the XY plane. The simulated organ holding portion 40 for the affected part is arranged inside the retaining ring 88. The pair of engaging portions 92A and 92B provided on the first base 41 engage with the retaining ring 88 in the axial and radial directions and are slidable in the circumferential direction. If the pair of engaging portions 92A and 92B slide along the retaining ring 88, the first base 41 rotates around the center axis O of the retaining ring 88. In this embodiment, a first diagonal line T1 connecting the first holding portion 42 and the third holding portion 46 provided on the first base 41 substantially coincides with the diameter of the holding ring 88. A midpoint M of the first diagonal line T1 intersects the central axis O of the holding ring 88.

[0111] Position adjustment holes 89 are provided at positions W1 to W12 at 30-degree intervals in the circumferential direction in the retaining ring 88. A position adjustment pin 93 that can engage with the position adjustment hole 89 is provided in one engaging portion 92A. As a result, by engaging the position adjustment pin 93 with a specific position adjustment hole 89 selected from W1 to W12 (in Figure 1 W12) engagement can make the fixed angle of the affected part simulated organ 140 around the central axis O of the retaining ring 88 have 12 changes. Figure 8 This is also reflected in the settings table shown.

[0112] <Explanation of the training device and human organs>

[0113] Figure 19 The figure shows the relationship between the training device 1 and the human organs. The simulated organ 100 for the first path simulates the oral cavity and esophagus 950 of a human body 900. Furthermore, the simulated organ 120 for the second path and the simulated affected area organ 140 simulate a portion of the inner wall of a stomach 960 of a human body 900. Furthermore, the relative positions of the simulated organ 120 for the second path and the simulated affected area organ 140 can be freely changed. As a result, the simulated affected area organ 140 can simulate various affected areas on the inner wall of the stomach 960.

[0114] <First Practice Method for Medical Equipment>

[0115] Figure 9 FIG. 1 shows a state in which operation training of the endoscope 500 is performed using the training device 1. Figure 9 The training device 1 is configured as follows: Y-axis linear motion unit 64: 50 mm, X-axis linear motion unit 62: 0 mm, base vertical relative motion mechanism 70: 30 mm, base vertical relative motion mechanism 80: V6, base horizontal relative motion mechanism 90: W12, angle adjustment mechanism 24: 20 degrees, second holding unit 44: P2, fourth holding unit 48: P2, tension adjustment mechanism 56: distal, and second-path simulated organ holding unit 25: use. As a result, the surgical surface of the affected area simulated organ 140 faces toward the near side of the X-axis.

[0116] The surgeon practicing the procedure inserts the tip of the endoscope 500 from the upstream end of the simulated organ 100 for the first pathway. The surgeon pushes the endoscope 500 inward, causing its tip to extend from the downstream end of the simulated organ 100 for the first pathway. While contacting the simulated organ 120 for the second pathway, the surgeon guides the endoscope further downstream. In this state, the surgeon bends the tip of the endoscope 500 inward along the Y axis to approach the simulated organ 140 for the affected area. At this point, the surgeon attempts to skillfully utilize the reaction force exerted by the endoscope 500 upon contact with the near-front sidewall of the simulated organ 120 for the second pathway. Subsequently, various surgical instruments, such as forceps, an injection needle, and an electronic scalpel, are protruded from the tip of the endoscope 500 through the interior of the endoscope 500 to incise or remove the simulated organ 140 for the affected area.

[0117] <Second training method for medical equipment>

[0118] Figure 10 The following figure shows a state in which the operation training of the endoscope 500 is performed using the training device 1. Here, the operation of setting the simulated organ 140 for the affected part on the simulated organ holding portion 40 for the affected part is shown. Figure 10 The training device 1 is set as follows: Y-axis linear motion part 64: 50mm, X-axis linear motion part 62: 0mm, base vertical direction relative movement mechanism 70: 30mm, relative movement mechanism around the base vertical axis 80: V6, relative movement mechanism around the horizontal axis 90: W12, angle adjustment mechanism 24: 20 degrees, second holding part 44: P SET , the fourth holding unit 48: Q SET , the tension adjustment mechanism 56: proximal position, and the second path simulated organ holding portion 25: in use. As a result, the second holding portion 44 and the fourth holding portion 48 are closest to the first diagonal line T1.

[0119] The operator performing training grips the simulated organ 140 for the affected part with the first, second, third, and fourth holding parts 42, 44, 46, and 48. Then, the operator rotates the first and second arms 43B and 43C to achieve the target posture while increasing tension.

[0120] <Third training method for medical equipment>

[0121] exist Figure 14 and Figure 15 FIG. 5 shows a state in which operation training of the endoscope 500 is performed using the training device 1. Figure 14 and Figure 15 The training device 1 is configured as follows: Y-axis linear motion unit 64: 50 mm, X-axis linear motion unit 62: 0 mm, base vertical relative motion mechanism 70: 30 mm, base vertical relative motion mechanism 80: V6, base horizontal relative motion mechanism 90: W9, angle adjustment mechanism 24: 20 degrees, second holding unit 44: P2, fourth holding unit 48: Q1, tension adjustment mechanism 56: distal position, and second-path simulated organ holding unit 25: use. As a result, the surgical surface of the affected area simulated organ 140 faces downward along the Z axis.

[0122] The surgeon practicing inserts the tip of the endoscope 500 from the upstream end of the simulated organ 100 for the first path. The surgeon pushes the endoscope 500 inward, causing its tip to extend from the downstream end of the simulated organ 100 for the first path. While contacting the simulated organ 120 for the second path, the surgeon is guided further downstream along the path. In this state, the surgeon bends the tip of the endoscope 500 upward along the Z axis to approach the simulated organ 140 for the affected area. At this point, the surgeon attempts to skillfully utilize the reaction force exerted by the endoscope 500 upon contact with the bottom surface of the simulated organ 120 for the second path. Subsequently, various treatment instruments, such as forceps, an injection needle, and an electronic scalpel, are protruded from the tip of the endoscope 500 through the interior of the endoscope 500 to cut or remove the simulated organ 140 for the affected area.

[0123] <The fourth training method for medical equipment>

[0124] Figure 16 FIG. 1 shows a state in which operation training of the endoscope 500 is performed using the training device 1. Figure 16The training device 1 is configured as follows: Y-axis linear motion unit 64: 50 mm, X-axis linear motion unit 62: 0 mm, base vertical relative motion mechanism 70: 30 mm, base vertical relative motion mechanism 80: V2, base horizontal relative motion mechanism 90: W12, angle adjustment mechanism 24: 20 degrees, second holding unit 44: P2, fourth holding unit 48: Q1, tension adjustment mechanism 56: distal position, and second-path simulated organ holding unit 25: use. As a result, the surgical surface of the affected area simulated organ 140 faces inward along the Y axis.

[0125] The surgeon practicing the procedure inserts the tip of the endoscope 500 from the upstream end of the simulated organ 100 for the first pathway. The surgeon pushes the endoscope 500 inward, causing its tip to extend from the downstream end of the simulated organ 100 for the first pathway. While contacting the simulated organ 120 for the second pathway, the endoscope is guided further downstream along the pathway. In this state, the surgeon bends the tip of the endoscope 500 toward the near-front side of the Y-axis to approach the simulated organ 140 for the affected area. At this point, the surgeon attempts to skillfully utilize the reaction force exerted by the endoscope 500 against the inner sidewall of the simulated organ 120 for the second pathway. Subsequently, various surgical instruments, such as forceps, an injection needle, and an electronic scalpel, are protruded from the tip of the endoscope 500 through the interior of the endoscope 500 to incise or remove the simulated organ 140 for the affected area.

[0126] As described above, according to the training device 1 of this embodiment, the affected area simulated organ holder 40 can hold a slice-shaped affected area simulated organ 140, at least a portion of which has been cut or removed. Furthermore, the first-path simulated organ holder 20 and the second-path simulated organ holder 25 can simultaneously hold the first-path simulated organ 100 and the second-path simulated organ 120, which guide the medical instrument (endoscope 500) to the affected area simulated organ 140. Thus, by making the affected area simulated organ 140 independent of the first-path simulated organ holder 20 and the second-path simulated organ holder 25, it is possible to simply replace the affected area simulated organ 140 after completing surgical training.

[0127] Furthermore, the simulated organ 140 for the affected part is used for practicing incision and / or excision techniques, and is designed to resemble an actual living organism, which tends to make it more expensive to manufacture. Consequently, the area and volume are minimized. On the other hand, even if the simulated organ holder 20 for the first path and the simulated organ holder 25 for the second path are not closely resembling an actual living organism, sufficient manipulation practice can still be performed. Consequently, by making them from different materials than the simulated organ 140 for the affected part, they can be reused repeatedly.

[0128] Furthermore, by making the simulated organ 140 for the affected part into a sheet shape, the operation status of the medical device can be visually confirmed from the outside. In other words, instructors other than the practicing surgeon can visually confirm the operation status of the medical device from the outside and provide appropriate advice to the surgeon.

[0129] On the other hand, by making the first-path simulated organ 100 a tubular structure, a method of inserting a medical device using a tubular organ such as the esophagus or blood vessels as a path can be made closer to reality.

[0130] Furthermore, in this embodiment, a second-pathway simulated organ 100 is independently positioned downstream of the first-pathway simulated organ 100. This allows the second-pathway simulated organ 100 to simulate a portion of the same organ as the affected-site simulated organ 140. Furthermore, in this embodiment, the second-pathway simulated organ 100 and the affected-site simulated organ 140 each simulate the inner wall of the stomach. Simply by flexibly changing their relative positions, the affected-site simulated organ 140 can simulate affected areas at various locations within the stomach, increasing the variety of training exercises. Furthermore, the open top of the second-pathway simulated organ 100 improves external visibility of the medical device's operating conditions.

[0131] In the training apparatus 1 , the affected area simulated organ holding portion 40 includes the tension adjustment mechanism 56 for varying the tension applied to the affected area simulated organ 140 . This allows for simulating a tensile state of the stomach, for example, when expanded by air, while maintaining the sheet shape.

[0132] Furthermore, in the training apparatus 1, the affected-site simulated organ holding portion 40 holds the affected-site simulated organ 140 by forming a hyperbolic, hyperbolic paraboloid, or saddle-shaped curved surface on its surface. This allows a curved surface to be formed while maintaining the sheet shape, thereby simulating, for example, the tensile state of the stomach caused by expansion due to air.

[0133] Should be explained, such as Figure 8 As shown, the training device 1 includes a setting table that graphically represents the setting values for various movable parts. This allows various training postures to be defined using the setting values in the setting table, making it easy to reproduce the training postures. Consequently, the progress of the technique training can also be managed.

[0134] It should be noted that the present invention is not limited to the above-described embodiment, and various modifications can be added without departing from the scope of the present invention.

Claims

1. A medical device operation training device, It is characterized in that The medical device operation training device is used when practicing the operation of a medical device. The medical device operation training device comprises: an affected part simulated organ holding portion that holds a sheet-like affected part simulated organ that can be cut or removed at least in part; and a simulated organ holding unit for a path, which holds a simulated organ for a path for guiding the medical instrument to the simulated organ for an affected part, The affected part simulated organ holding portion includes at least a first holding portion, a second holding portion, and a third holding portion for holding the affected part simulated organ. By arranging the first holding part, the second holding part, and the third holding part to form vertices of a triangle, a surgical surface including the triangle is formed on the surface of the simulated organ for the affected part.

2. The medical device operation training device according to claim 1, It is characterized in that The affected part simulated organ holding portion includes a tension adjustment mechanism that changes the tension acting on the affected part simulated organ.

3. The medical device operation training device according to claim 1, It is characterized in that The affected part simulated organ holding unit further comprises a fourth holding unit for holding the affected part simulated organ. The first holding portion, the second holding portion, the third holding portion, and the fourth holding portion are arranged in this order to surround the simulated organ for the affected part. A first diagonal line connecting the first holding portion and the third holding portion and a second diagonal line connecting the second holding portion and the fourth holding portion are positioned in a twisted position.

4. The medical device operation training device according to claim 1 or 3, It is characterized in that The affected part simulated organ holding portion includes a second holding portion displacement mechanism that displaces the second holding portion in a direction including at least a circumferential component of a line connecting the first holding portion and the third holding portion.

5. The medical device operation training device according to claim 1, It is characterized in that The affected area simulated organ holding unit holds the affected area simulated organ so that the surface of the affected area simulated organ becomes a hyperbolic surface, a hyperbolic paraboloid surface, or a saddle-shaped curved surface.

6. The medical device operation training device according to claim 1, It is characterized in that The simulated organ for a path includes a path member, the path member is in a belt shape extending in a path direction, and includes a belt-shaped region with both side edges in a belt width direction rising.

7. The medical device operation training device according to claim 6, It is characterized in that The strip-shaped region included in the path member becomes a widening region in which the width of the band increases from the upstream toward the downstream.

8. The medical device operation training device according to claim 6, It is characterized in that The upper side of the strip-shaped region of the path member is open.

9. The medical device operation training device according to claim 7, It is characterized in that The upper side of the strip-shaped region of the path member is open.

10. The medical device operation training device according to any one of claims 6 to 9, It is characterized in that The path member and the simulated affected part organ simulate a part of the inner wall of the stomach, and the path member and the simulated affected part organ move relatively.

11. The medical device operation training device according to any one of claims 6 to 9, It is characterized in that The simulated organ for the pathway includes a tubular pathway member having a tubular shape on the upstream side of the pathway member.

12. The medical device operation training device according to claim 10, It is characterized in that The simulated organ for the pathway includes a tubular pathway member having a tubular shape on the upstream side of the pathway member.

13. The medical device operation training device according to claim 11, It is characterized in that The maximum width of the path member is greater than the width of the inner wall of the cylindrical path member.

14. The medical device operation training device according to claim 12, It is characterized in that The maximum width of the path member is greater than the width of the inner wall of the cylindrical path member.

15. The medical device operation training device according to claim 1, It is characterized in that A relative movement mechanism around a horizontal axis is provided between the simulated organ for the pathway and the simulated organ for the affected part, and the relative movement mechanism around the horizontal axis changes a relative angle around a horizontal axis extending in the horizontal direction.

Images