Duodenal papilla phantom for surgical training

Abstract

The present application discloses a duodenal papilla phantom structure for surgical training, comprising: a base; a muscle part combined with the base, the muscle part protruding in a first direction on the base, and a fundus formed by concave in the first direction from the base to the muscle part; and a papilla part combined with the muscle part, the papilla part protruding in the first direction on the muscle part, the papilla part being formed with a papilla protrusion being the highest in the first direction; a perforation is formed by cutting or puncturing the papilla part near the papilla protrusion, the perforation communicating with the fundus, so as to perform a duodenal papilla surgical training. In this way, it helps medical students to focus on the tube insertion training of the duodenal papilla itself, which can be used as the first step of the progressive training mode.

Description

Technical Field

[0001] This invention relates to a prosthetic structure for surgical training, and more particularly to a prosthetic structure for a duodenal papilla. Background Technology

[0002] Endoscopic retrograde cholangiopancreatography (ERCP) has long been an important tool for the direct diagnosis and treatment of biliary and pancreatic diseases. To further confirm the diagnosis and treatment, such as by biopsy, endoscope insertion, stone removal, lithotripsy, and biliary and pancreatic drainage, opening the duodenal papilla (Walter's papilla), the common exit point of the bile duct and pancreatic duct, is a crucial first step.

[0003] To assist medical students in learning surgical techniques, there are some patents related to ERCP prostheses. For example, Chinese Patent Publication No. CN 113380124 provides an ERCP training model, which includes models of human body parts such as the head, esophagus, stomach, duodenum, bile duct and pancreatic duct.

[0004] Chinese Patent Publication No. CN 110543002 provides a teaching model device for endoscopic simulation of retrograde cholangiopancreatography, including an integrated operating platform and a duodenal module installed on the integrated operating platform. The duodenal module includes a duodenal model and an oral cavity model connected to the duodenal model.

[0005] However, the complex model structures and numerous parts of the two patent cases make it difficult for medical students to focus on training in duodenal papilla penetration itself. Summary of the Invention

[0006] Therefore, the purpose of this invention is to provide a duodenal papilla prosthesis structure for surgical training, in order to overcome the shortcomings of the prior art.

[0007] The present invention provides a duodenal papilla prosthesis structure for surgical training, comprising: a base; a muscular portion attached to the base, the muscular portion protruding along a first direction on the base and having an ampulla formed concavely from the base toward the muscular portion along the first direction; and a papilla attached to the muscular portion, the papilla protruding along the first direction on the muscular portion and having a highest papilla protrusion formed on the papilla in the first direction; and a perforation formed from near the papilla protrusion by cutting or puncturing the papilla, the perforation communicating with the ampulla, for performing surgical training of a duodenal papilla.

[0008] Furthermore, the nipple protrusion is offset from the center point of the nipple head, and the ampulla has the deepest ampulla protrusion, which is offset from the center point of the ampulla.

[0009] The concave shape of the ampulla is consistent with that of the nipple, so that the protrusion of the ampulla corresponds to the protrusion of the nipple.

[0010] In this muscular region, a long side and a short side extend from the ampulla protrusion toward the base, and the curvature of the long side is the same as the directionality of a common bile duct.

[0011] Furthermore, the base is annular, and there is a joint on the edge of the base, which is connected to a fixture.

[0012] The nipple extends along a second direction, which is perpendicular to the first direction, and the nipple protrusion is offset from the center point of the nipple in the second direction.

[0013] The nipple has a nipple length along the second direction, the muscle has a muscle length along the second direction, and the nipple length is between 90% and 95% of the muscle length.

[0014] The nipple has a nipple width in a third direction, which is perpendicular to the first and second directions. The muscle has a muscle width in the third direction, and the nipple width is between 33% and 50% of the muscle width.

[0015] When the muscle and the nipple are observed along the first direction, the muscle appears to be round or oval, and the nipple appears to be long and rectangular.

[0016] There is a nipple thickness from the nipple protrusion to the surface of the muscle, and the nipple thickness is between 2 and 10 millimeters.

[0017] The base, the muscle portion, and the nipple are all made of conductive material, and the base contacts a conductive sheet with a notch corresponding to the ampulla. The perforation is formed by cutting or puncturing the nipple with an electric burner for surgical training of the duodenal papilla.

[0018] The base has a direction mark in a second direction, which is perpendicular to the first direction.

[0019] The hardness of the muscle is higher than that of the nipple.

[0020] Based on the above technical features, the following effects can be preferably achieved:

[0021] 1. A duodenal papilla prosthesis structure mainly composed of a base, a muscular part, and a papillary head, used for surgical training. Its simple structure helps medical students focus on the perforation training of the duodenal papilla itself and can serve as the first step in a progressive training model.

[0022] 2. The duodenal papilla prosthesis used for surgical training simulates the human duodenal papilla through its ampulla, papillary protrusions, etc., to achieve better training results.

[0023] 3. The base, muscle section, and nipple are all made of conductive materials, and are equipped with conductive plates and electrocautery knives to assist medical students in training in electrocautery of the duodenal nipples. Attached Figure Description

[0024] Figure 1 This is a perspective view of an embodiment of the present invention.

[0025] Figure 2 This is a perspective view of an embodiment of the present invention from another direction.

[0026] Figure 3 This is a top view of an embodiment of the present invention.

[0027] Figure 4 This is a side view of an embodiment of the present invention.

[0028] Figure 5 for Figure 3 A sectional view.

[0029] Figure 6 This is a schematic diagram of an embodiment of the present invention. Figure 1 This indicates the connection of a conductive sheet.

[0030] Figure 7 This is a schematic diagram of an embodiment of the present invention. Figure 2 This indicates that a fixture is used for positioning.

[0031] Figure 8 This is a schematic diagram of an embodiment of the present invention. Figure 3 This indicates the connection to the main bile duct.

[0032] Explanation of reference numerals in the attached drawings: 1-Base; 11-Joint; 2-Muscle portion; 3-Nipple head; 31-Nipple protrusion; 32-Nipple center point; 4-Ampulla; 41-Ampulla protrusion; 42-Ampulla center point; 43-Long side; 44-Short side; 5-Direction mark; A-Conductive sheet; A1-Notch; B-Jig; C-Common bile duct; D1-First direction; D2-Second direction; D3-Third direction; L-Nipple length; R-Muscle diameter; T-Nipple thickness; W-Nipple width. Detailed Implementation

[0033] Based on the above technical features, the main functions of the duodenal papilla prosthesis structure for surgical training of the present invention will be clearly demonstrated in the following embodiments.

[0034] Please see Figures 1 to 3 To reveal the structure of the duodenal papilla prosthesis used for surgical training in the embodiments of the present invention, a first direction D1, a second direction D2 and a third direction D3 that are perpendicular to each other are defined.

[0035] The duodenal papilla prosthesis structure used for surgical training includes:

[0036] A base 1 is located on the plane formed by the second direction D2 and the third direction D3. The base 1 is annular and has a joint 11 at its edge.

[0037] A muscle portion 2 is attached to the base 1, and the muscle portion 2 protrudes from the base 1 along the first direction D1. When viewed along the first direction D1, the muscle portion 2 appears circular or elliptical, such as... Figure 3 As shown.

[0038] A nipple 3 is attached to the muscle portion 2. The nipple 3 protrudes along the first direction D1 and extends along the second direction D2 on the muscle portion 2. When viewed along the first direction D1, the nipple 3 appears as a long rectangle, such as... Figure 3 As shown.

[0039] Please see Figures 3 to 5 The nipple 3 has a highest nipple protrusion 31 in the first direction D1, and a nipple center point 32 in the center of the surface of the nipple 3. The nipple protrusion 31 is offset from the nipple center point 32 in the second direction D2.

[0040] The muscle portion 2 has a muscle length along the second direction D2 and a muscle width along the third direction D3; the nipple head 3 has a nipple length L along the second direction D2 and a nipple width W along the third direction D3, and a nipple thickness T from the nipple protrusion 31 to the surface of the muscle portion 2.

[0041] In a preferred embodiment of the present invention, when the muscle portion 2 is viewed along the first direction D1, the muscle portion 2 appears to be circular, so the length and width of the muscle are both equal to the muscle diameter R of the muscle portion 2.

[0042] The nipple length L is between 90% and 95% of the muscle diameter R (the muscle length), the nipple width W is between 33% and 50% of the muscle diameter R (the muscle width), and the nipple thickness T is between 2 and 10 millimeters.

[0043] An ampulla 4 is formed concavely from the base 1 toward the muscle portion 2 along the first direction D1. Preferably, the concave shape of the ampulla 4 is consistent with that of the nipple 3.

[0044] More specifically, the ampulla 4 has a deepest ampulla protrusion 41 in the first direction D1, and there is an ampulla center point 42 in the center of the inner surface of the ampulla 4. The ampulla protrusion 41 is also offset from the ampulla center point 42 in the second direction D2, and corresponds to the nipple protrusion 31.

[0045] In the muscle portion 2, a long side 43 and a short side 44 extend from the ampulla protrusion 41 toward the base 1, and the curvature of the long side 43 is the same as the directionality of a common bile duct C [the common bile duct C is please match] Figure 8 ].

[0046] Preferably, the base 1, the muscle part 2, and the nipple 3 can be integrally molded, and different materials are used in the production of the muscle part 2 and the nipple 3, so that the hardness of the muscle part 2 is higher than that of the nipple 3, thus better simulating the human duodenal nipple.

[0047] Please see Figure 5 and Figure 6 Preferably, the base 1, the muscle portion 2, and the nipple 3 are all made of conductive material, and the base 1 contacts a conductive plate A. The conductive plate A is the negative terminal of an electric heating device, and the conductive plate A has a notch A1 corresponding to the ampulla 4.

[0048] During surgical training of the duodenal papilla, an electrocautery knife (not shown) of the electrocautery device is used to cut or puncture the papilla head 3 near the papilla protrusion 31 to form a perforation (not shown), so that the perforation connects to the ampulla 4.

[0049] Please see Figure 5 , Figure 7 and Figure 8 In actual implementation, a fixture B can be attached to the joint portion 11 of the base 1, for example, the fixture B can be used to press the joint portion 11 against the table, so that the duodenal papilla prosthesis structure used for surgical training is positioned and will not be displaced during training, and the base 1 and the conductive sheet A can be made to fit more closely.

[0050] After becoming familiar with the action of cutting or puncturing the nipple 3, the simulated common bile duct C can be connected to the ampulla 4. The common bile duct C can be, for example, a rubber tube, a glass tube, a silicone tube, etc., for further training and to become familiar with the direction of tube insertion.

[0051] To ensure that the connection direction between the duodenal papilla prosthesis used for surgical training and the common bile duct C is correct, and even to ensure that the jig B is positioned correctly, the base 1 may also have a direction mark 5 on a second direction D2, such as left and right markings R and L, line segments along the second direction D2, etc.

[0052] Please refer to the following: Figure 1 and Figure 2 The duodenal papilla prosthesis structure for surgical training is mainly composed of the base 1, the muscle part 2 and the papilla 3. The structure is simple and helps medical students focus on the electrocautery and tube-penetration training of the duodenal papilla itself. Medical students do not need to consider the esophagus, stomach, etc., and it can be used as the first step in a progressive training mode.

[0053] By further simulating the common bile duct C, medical students can then continue training on the angle of tube insertion after they are familiar with the electrocautery procedure.

[0054] Based on the above description of the embodiments, one can fully understand the operation, use, and effects of the present invention. The above embodiments are only preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. Simple equivalent changes and modifications made in accordance with the claims and description of the present invention are all within the scope of the present invention.

Claims

1. A duodenal papilla prosthesis structure for surgical training, characterized in that, Include: A base; A muscular portion, joined to the base, the muscular portion protruding from the base along a first direction, and concave inward from the base toward the muscular portion along the first direction to form a flank; and A nipple is attached to the muscle portion, the nipple protrudes along the first direction on the muscle portion, and the nipple has a highest nipple protrusion in the first direction. A perforation is created by cutting or puncturing the nipple near the nipple protrusion, and the perforation connects to the ampulla, for surgical training of a duodenal papilla. The nipple protrusion is offset from the center point of the nipple head, and the ampulla has the deepest ampulla protrusion, which is offset from the center point of the ampulla.

2. The duodenal papilla prosthesis structure for surgical training as described in claim 1, characterized in that, The concave shape of the ampulla matches the nipple, so that the protrusion of the ampulla corresponds to the protrusion of the nipple.

3. The duodenal papilla prosthesis structure for surgical training as described in claim 1, characterized in that, In this muscular region, a long side and a short side extend from the ampulla protrusion toward the base, and the curvature of the long side is the same as the directionality of a common bile duct.

4. The duodenal papilla prosthesis structure for surgical training as described in claim 1, characterized in that, Furthermore, the base is annular, and there is a joint on the edge of the base, which is connected to a fixture.

5. The duodenal papilla prosthesis structure for surgical training as described in claim 1, characterized in that, The nipple extends along a second direction perpendicular to the first direction, and the nipple protrusion is offset from the center point of the nipple in the second direction.

6. The duodenal papilla prosthesis structure for surgical training as described in claim 5, characterized in that, The nipple has a nipple length along the second direction, the muscle portion has a muscle length along the second direction, and the nipple length is between 90% and 95% of the muscle length.

7. The duodenal papilla prosthesis structure for surgical training as described in claim 5, characterized in that, The nipple has a nipple width in a third direction, which is perpendicular to the first and second directions. The muscle portion has a muscle width in the third direction, and the nipple width is between 33% and 50% of the muscle width.

8. The duodenal papilla prosthesis structure for surgical training as described in claim 6 or 7, characterized in that, When the muscle and the nipple are observed along the first direction, the muscle appears to be round or oval, and the nipple appears to be long and rectangular.

9. The duodenal papilla prosthesis structure for surgical training as described in claim 1, characterized in that, There is a nipple thickness from the nipple protrusion to the surface of the muscle, which is between 2 and 10 millimeters.

10. The duodenal papilla prosthesis structure for surgical training as described in claim 1, characterized in that, The base, the muscle portion, and the nipple are all made of conductive material, and the base contacts a conductive sheet with a notch corresponding to the ampulla; the perforation is formed by cutting or puncturing the nipple with an electric burner for surgical training of the duodenal papilla.

11. The duodenal papilla prosthesis structure for surgical training as described in claim 10, characterized in that, The base has a directional mark in a second direction, which is perpendicular to the first direction.

12. The duodenal papilla prosthesis structure for surgical training as described in claim 1, characterized in that, The muscle is harder than the nipple.

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