Duodenal papilla prosthesis for surgical training with diverticulum simulation configuration

Abstract

The present application discloses a duodenal papilla prosthesis for surgical training, which comprises a base, a muscle part combined with the base, the muscle part being convex along a height direction on the base, and a diverticulum formed by concave along the height direction from the base to the muscle part, a papilla part combined with the muscle part, the papilla part being convex along the height direction on the muscle part, the papilla part being formed with a papilla convex point which is the highest along the height direction, and a diverticulum combined with the muscle part, the diverticulum being adjacent to the diverticulum, a perforation is formed by cutting or puncturing the papilla part near the papilla convex point, the perforation is communicated with the diverticulum, and a duodenal papilla surgical training is performed. Thus, the overall structure is simple, and can help medical students or doctors to focus on the training of tube insertion, electric burning, cutting and the like of the duodenal papilla with diverticulum.

Description

TECHNICAL FIELD

[0001] The present application relates to a dummy for surgical training, in particular to a duodenal papilla dummy with diverticulum simulation structure for surgical training. BACKGROUND

[0002] Endoscopic retrograde cholangiopancreatography, commonly known as ERCP, is an important way to directly diagnose and treat biliary and pancreatic diseases.

[0003] When a patient receives ERCP to open the common outlet of the bile duct and pancreatic duct, i.e. the duodenal papilla, it is necessary and important to perform the first step. When performing duodenal papilla incision, the patient will assume a prone position or lie on the left side, and then the endoscope physician will extend an electrotome from the endoscope working channel, insert the electrotome into the duodenal papilla, and slowly and carefully cut the duodenal papilla after electrifying until the sphincter is relaxed.

[0004] In order to train duodenal papilla incision, there are many related dummy technologies at present, such as a medical training device provided by US20210201700A1, which mainly has an esophageal model, a gastric model, a duodenal model, etc., and the duodenal model has a duodenal papilla.

[0005] However, when actually performing duodenal papilla incision, it is difficult to cut due to the juxtapapillary diverticulum (JPD) beside the duodenal papilla, and there is even a concern about perforation. The medical training device of the foregoing patent not only has a complex structure, but also cannot provide technical practice of duodenal papilla incision with diverticulum. SUMMARY

[0006] Therefore, the purpose of the present application is to provide a duodenal papilla dummy with diverticulum simulation structure for surgical training.

[0007] The present application provides a duodenal papilla dummy with diverticulum simulation structure for surgical training, comprising: a base; a muscle part combined with the base, the muscle part being convex along a height direction on the base, and a diverticulum being formed by cutting or puncturing the papilla part near the papilla convex point to form a perforation communicating with the fundus for surgical training of a duodenal papilla.

[0008] The relative position of the nipple to the diverticulum satisfies one of the following relationships: the nipple is located inside the diverticulum; the nipple is located at the edge of the diverticulum; the nipple is located outside the diverticulum and the distance from the diverticulum is less than 1 cm; the nipple is located outside the diverticulum and the distance from the diverticulum is greater than 1 cm; there are at least two diverticula, and the nipple is located outside all diverticula and the distance from at least one diverticulum is less than 1 cm; there are at least two diverticula, and the nipple is located outside all diverticula and the distance from all diverticula is greater than 1 cm.

[0009] The height difference between the nipple protrusion and the base along the height direction is between 0.8 and 6.5 mm.

[0010] The radius of curvature of the nipple protrusion is between 0.25 and 3.4 mm.

[0011] The area of ​​the restroom ranges from 5 to 900 square millimeters.

[0012] In this muscular region, a long side and a short side extend toward the base from a bulge point away from the base, and the curvature of the long side is the same as the directionality of a common bile duct.

[0013] 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 to perform surgical training for the duodenal nipple.

[0014] Based on the above technical features, the following effects can be preferably achieved:

[0015] 1. It mainly consists of a base, a muscular part and a papilla, and is equipped with diverticula in different positions. Its simple structure can help medical students or doctors focus on training in perforation, electrocautery and cutting of duodenal papilla with diverticula.

[0016] 2. By simulating the duodenal papilla in the human body through the ampulla, nipple protrusions, etc., a better training effect can be achieved.

[0017] 3. The base, muscle section, and nipple are all made of conductive material, and are equipped with conductive pads and an electrocautery knife to assist medical students or doctors in training in electrocautery of the duodenal nipple. Attached Figure Description

[0018] Figure 1 This is a perspective view of the first embodiment of the present invention.

[0019] Figure 2 This is a perspective view of the first embodiment of the present invention from another direction.

[0020] Figure 3This is a plan view of the first embodiment of the present invention.

[0021] Figure 4 This is a cross-sectional view of the first embodiment of the present invention in an implemented state.

[0022] Figure 5 This is a perspective view of the second embodiment of the present invention.

[0023] Figure 6 This is a perspective view of the second embodiment of the present invention from another direction.

[0024] Figure 7 This is a plan view of the second embodiment of the present invention.

[0025] Figure 8 This is a perspective view of the third embodiment of the present invention.

[0026] Figure 9 This is a perspective view of the third embodiment of the present invention from another direction.

[0027] Figure 10 This is a plan view of the third embodiment of the present invention.

[0028] Explanation of reference numerals in the attached drawings: 1, 1a, 1b - base; 2, 2a, 2b - muscle portion; 3, 3a, 3b - nipple head; 31 - nipple protrusion; 4, 4a, 4b - ampulla; 41 - ampulla protrusion; 42 - long side; 43 - short side; 5, 5a, 5b - diverticulum; A - conductive sheet; A1 - notch; B - common bile duct; D - height direction; H - height difference. Detailed Implementation

[0029] Based on the above technical features, the main functions of the duodenal papilla prosthesis for surgical training with a diverticulum simulation structure of the present invention will be clearly demonstrated in the following embodiments.

[0030] Please see Figures 1 to 3 The invention discloses a first embodiment of a duodenal papilla prosthesis for surgical training containing a diverticulum simulation structure, comprising:

[0031] A base 1, preferably arranged in a ring.

[0032] A muscle portion 2 is attached to the base 1, and the muscle portion 2 protrudes along a height direction D on the base 1.

[0033] A nipple 3 is attached to the muscle portion 2, and the nipple 3 protrudes along the height direction D on the muscle portion 2.

[0034] An ampulla 4 is formed concavely from the base 1 toward the muscle part 2 along the height direction D.

[0035] A diverticulum 5 is attached to the muscle portion 2, and the diverticulum 5 is adjacent to the ampulla 4. Preferably, the area of ​​the diverticulum 5 is between 5 and 900 square millimeters.

[0036] In this embodiment, the nipple 3 is located inside the diverticulum 5.

[0037] Please see Figure 4 The nipple 3 has a highest nipple protrusion 31 formed in the height direction D. Preferably, the height difference H between the nipple protrusion 31 and the base 1 along the height direction D is between 0.8 and 6.5 mm, and the radius of curvature of the nipple protrusion 31 is between 0.25 and 3.4 mm.

[0038] In the muscle portion 2, starting from the deepest ampulla protrusion 41 in the height direction D, which is far away from the base 1, a long side 42 and a short side 43 extend toward the base 1, and the curvature of the long side 42 is the same as the curvature of a common bile duct B.

[0039] 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.

[0040] In addition, the base 1, the muscle part 2 and the nipple 3 are all made of conductive material, and the base 1 is in contact with a conductive plate A, which is the negative terminal of an electric heating device. The conductive plate A has a notch A1 corresponding to the ampulla 4.

[0041] 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.

[0042] After becoming familiar with the action of cutting or puncturing the nipple 3 in the presence of the diverticulum 5, the simulated common bile duct B can be connected to the ampulla 4. The common bile duct B can be, for example, a rubber tube, a glass tube, a silicone tube, etc., for further training and to familiarize oneself with the direction of tube insertion.

[0043] Please see Figures 5 to 7 This invention discloses a second embodiment of the duodenal papilla prosthesis for surgical training containing a diverticulum simulation structure. The difference between this embodiment and the first embodiment is that: in the first embodiment [the first embodiment is described in conjunction with...] Figure 3 The nipple 3 is located inside the diverticulum 5; however, in this embodiment, the nipple 3a is located at the edge of the diverticulum 5a.

[0044] The remaining structures, such as the base 1a, the muscle part 2a, and the training steps, can be the same as or correspond to the first embodiment, and will not be repeated here. The ampulla 4a can correspond to the nipple 3a and have a different shape than the first embodiment.

[0045] Please see Figures 8 to 10 This invention discloses a third embodiment of the duodenal papilla prosthesis for surgical training containing a diverticulum simulation structure. This embodiment differs from the first embodiment in that: in the first embodiment [the first embodiment is described in conjunction with...] Figure 3 The nipple 3 is located inside the diverticulum 5; however, in this embodiment, the nipple 3b is located outside the diverticulum 5b and the distance between it and the diverticulum 5b is less than 1 cm.

[0046] The remaining structures, such as the base 1b and the muscle part 2b and the training steps, can be the same as or correspond to the first embodiment, and will not be repeated here. The ampulla 4b can correspond to the nipple 3b and have a different shape than the first embodiment.

[0047] Please see Figure 3 , Figure 7 and Figure 10 In addition to the above-described embodiments, the relative positions of the nipples 3, 3a, 3b and the diverticula 5, 5a, 5b can also be located outside the diverticula 5, 5a, 5b and at a distance greater than 1 cm from them.

[0048] There may even be at least two diverticula 5, 5a, 5b, with the nipple 3, 3a, 3b located outside all diverticula 5, 5a, 5b and at least one of the diverticula 5, 5a, 5b at a distance of less than 1 cm, or the nipple 3, 3a, 3b located outside all diverticula 5, 5a, 5b and at a distance greater than 1 cm from all diverticula 5, 5a, 5b, etc.

[0049] This surgical training duodenal papilla prosthesis with a diverticulum simulation structure mainly consists of the base 1, 1a, 1b, the muscular portions 2, 2a, 2b, and the papillae 3, 3a, 3b, along with diverticula 5, 5a, 5b in different locations. Its simple construction allows medical students or physicians to focus on training in cannulation, electrocautery, and cutting of the duodenal papilla with diverticula 5, 5a, 5b. Medical students or physicians do not need to consider the esophagus, stomach, etc., making it a suitable first step in a progressive training model.

[0050] Further matching Figure 4 The simulated common bile duct B can be used to train medical students or doctors on the angle of tube insertion after they are familiar with the electrocautery procedure.

[0051] Based on the above description of the embodiments, one can fully understand the operation, use, and effects of the present invention. However, 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 for surgical training, comprising a diverticulum simulation structure, characterized in that, Include: A base; A muscular portion is attached to the base, the muscular portion protruding along a height direction on the base, and a cupule formed by the inward indentation from the base toward the muscular portion along the height direction. A nipple is attached to the muscle portion, the nipple protrudes along the height direction on the muscle portion, and the nipple has a highest nipple protrusion in the height direction. as well as A diverticulum, attached to the muscular portion, the diverticulum being adjacent to the ampulla; A perforation is created near the nipple protrusion by cutting or puncturing the nipple, and this perforation connects to the ampulla, for surgical training of a duodenal papilla.

2. The duodenal papilla prosthesis for surgical training with a diverticulum simulation structure as described in claim 1, characterized in that, The relative position of the nipple and the diverticulum satisfies one of the following relationships: The nipple is located inside the diverticulum; The nipple is located at the edge of the diverticulum; The nipple is located outside the diverticulum and is less than 1 cm away from the diverticulum; The nipple is located outside the diverticulum and at a distance greater than 1 cm from the diverticulum; There are at least two diverticula, and the nipple is located outside all the diverticula and is less than 1 cm away from at least one of the diverticula; There are at least two diverticula, and the nipple is located outside all diverticula and at a distance greater than 1 cm from all diverticula.

3. The duodenal papilla prosthesis for surgical training with a diverticulum simulation structure as described in claim 1, characterized in that, The height difference between the nipple protrusion and the base along the height direction is between 0.8 and 6.5 mm.

4. The duodenal papilla prosthesis for surgical training with a diverticulum simulation structure as described in claim 1, characterized in that, The radius of curvature of the nipple protrusion is between 0.25 and 3.4 mm.

5. The duodenal papilla prosthesis for surgical training with a diverticulum simulation structure as described in claim 1, characterized in that, The area of ​​the restroom ranges from 5 to 900 square millimeters.

6. The duodenal papilla prosthesis for surgical training with a diverticulum simulation structure as described in claim 1, characterized in that, In this muscular region, from a bulge point away from the base, there is a long side and a short side extending toward the base, and the curvature of the long side is the same as the directionality of a common bile duct.

7. The duodenal papilla prosthesis for surgical training with a diverticulum simulation structure 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 to perform surgical training for the duodenal papilla.

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