Duodenal papilla prosthesis structure

Abstract

The utility model provides a duodenal papilla prosthesis structure which comprises a base which is concaved inwards in one direction to form a first concave part; the muscle part is combined with the base in the direction, and the muscle part is concaved inwards in the direction to form a second concave part; the nipple part is combined with the muscle part in the direction, and the nipple part is concaved inwards in the direction to form a third concave part; and the first concave part, the second concave part and the third concave part are communicated to form an ampulla. Therefore, the structure of the duodenal papilla training device is closer to the condition of the real duodenal papilla of a human body, and the hand feeling of a doctor during practice can be closer to the hand feeling of the doctor during actual operation.

Description

Technical Field

[0001] The utility model relates to a prosthetic structure used for medical operation practice, in particular to a duodenal papilla prosthetic structure. Background Art

[0002] Endoscopic retrograde cholangiopancreatography (ERCP), commonly known as ERCP, has long been an important tool for the direct diagnosis and treatment of biliary and pancreatic diseases. Opening the duodenal papilla (Walter's papilla), where the bile and pancreatic ducts exit together, is a crucial first step in further confirming the diagnosis and conducting treatments, such as biopsy, endoscopic scintigraphy, stone removal and fragmentation, and biliopancreatic drainage.

[0003] Therefore, Chinese patent publication No. CN117877357A provides a duodenal papilla prosthesis structure for surgical training, comprising: a base; a muscle portion coupled to the base, the muscle portion protruding along a first direction on the base and concave inward from the base toward the muscle portion along the first direction to form an ampulla; and a nipple portion coupled to the muscle portion, the nipple portion protruding along the first direction on the muscle portion, the nipple portion forming a highest nipple protrusion in the first direction; a perforation is formed by cutting or puncturing the nipple portion near the nipple protrusion, the perforation being connected to the ampulla for surgical training of the duodenal papilla.

[0004] However, during surgical training, the feel of the prosthesis structure using the aforementioned patent case is still significantly different from the feel during actual surgery. Utility Model Content

[0005] Therefore, the purpose of this utility model is to provide a duodenal papilla prosthesis structure.

[0006] The utility model provides a duodenal papilla prosthesis structure, comprising: a base, which is concave inward along a direction to form a first concave portion; a muscle portion, which is coupled to the base in the direction, and the muscle portion is concave inward along the direction to form a second concave portion; a nipple portion, which is coupled to the muscle portion in the direction, and the nipple portion is concave inward along the direction to form a third concave portion; the first concave portion, the second concave portion, and the third concave portion are connected to form an ampulla; the nipple portion has a highest nipple convex point in the direction, the ampulla has a deepest ampulla convex point in the direction, and the thickness of the nipple from the nipple convex point to the ampulla convex point along the direction is between 1 and 5 mm.

[0007] The nipple protrusion deviates from a nipple center point of the nipple portion.

[0008] The ampulla has an inner surface, and the curvature direction of the inner surface is the same as the direction of a common bile duct.

[0009] When viewed parallel to the direction, the muscle portion is a circular or oval structure.

[0010] Wherein, when viewed parallel to the direction, the nipple portion has a nipple width, the muscle portion has a muscle width, and the nipple width is between 25% and 50% of the muscle width.

[0011] Wherein, when observed parallel to the direction, the nipple portion has a nipple length, the muscle portion has a muscle length, and the nipple length is between 57% and 60% of the muscle length.

[0012] Wherein, when observed parallel to the direction, the nipple portion has a nipple center point, the muscle portion has a muscle center point, and the nipple center point and the muscle center point do not overlap.

[0013] The base, the muscle portion and the nipple portion are all made of conductive materials.

[0014] The above technical features can preferably achieve the following effects:

[0015] 1. The structure of the present invention is closer to the actual condition of the human body's duodenal papilla, and the doctor's hand feeling during practice can also be closer to the actual feeling during surgery. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional appearance diagram of an embodiment of the present utility model.

[0017] Figure 2 This is a three-dimensional appearance diagram of an embodiment of the utility model from another direction.

[0018] Figure 3 It is a top view of an embodiment of the present utility model.

[0019] Figure 4 It is a side view of an embodiment of the present utility model.

[0020] Figure 5 for Figure 4 sectional view of .

[0021] Figure 6 Schematic diagram of an implementation of the present utility model.

[0022] Explanation of the accompanying numbers: 1-base; 2-muscle part; 21-muscle center point; 3-nipple; 31-nipple center point; 32-nipple convex point; 4-ampulla; 41-first inner concave part; 42-second inner concave part; 43-third inner concave part; 44-ampulla convex point; A-common bile duct; D-direction; H-nipple thickness; L-nipple length; R-muscle diameter; W-nipple width. DETAILED DESCRIPTION

[0023] In view of the above technical features, the main effects of the duodenal papilla prosthesis structure of the present invention can be clearly demonstrated in the following embodiments.

[0024] See also Figures 1 to 3 , discloses the structure of the duodenal papilla prosthesis of an embodiment of the present invention, comprising a base 1, a muscle portion 2 and a nipple portion 3, wherein the muscle portion 2 is coupled to the base 1 in a direction D, and the nipple portion 3 is coupled to the muscle portion 2 in the direction D.

[0025] Observe parallel to the direction D, that is, Figure 3 From the perspective of FIG, the muscle portion 2 is a circular or oval structure.

[0026] The nipple portion 3 has a nipple center point 31 , and the muscle portion 2 has a muscle center point 21 . The nipple center point 31 and the muscle center point 21 do not coincide with each other.

[0027] The nipple portion 3 has a nipple width W, and the muscle portion 2 has a muscle width. The nipple width W is between 25% and 50% of the muscle width.

[0028] The nipple portion 3 has a nipple length L, and the muscle portion 2 has a muscle length. The nipple length L is between 57% and 60% of the muscle length.

[0029] In a preferred embodiment of the present invention, the muscle portion 2 is a circular structure when viewed parallel to the direction D, such that the muscle width is equal to the muscle length and is a muscle diameter R.

[0030] See also Figure 2 、 Figure 4 and Figure 5 The base 1 is concave along the direction D to form a first concave portion 41, the muscle portion 2 is concave along the direction D to form a second concave portion 42, and the nipple portion 3 is concave along the direction D to form a third concave portion 43. The first concave portion 41, the second concave portion 42 and the third concave portion 43 are connected to form an ampulla 4.

[0031] The ampulla 4 has an inner surface, the curvature of which is the same as that of a common bile duct A. Figure 6 ].

[0032] The nipple portion 3 has a highest nipple protrusion 32 in the direction D. The nipple protrusion 32 deviates from Figure 3 The nipple center point 31.

[0033] The ampulla 4 has a deepest ampulla convex point 44 in the direction D. A nipple thickness H along the direction D from the nipple convex point 32 to the ampulla convex point 44 is between 1 and 5 mm, preferably 2 mm.

[0034] See also Figure 6 The base 1, the muscle portion 2 and the nipple portion 3 are all made of conductive materials, and the base 1 contacts a conductive sheet, which is the negative terminal of an electrocautery device.

[0035] During surgical training of the duodenal papilla, an electrocautery knife of the electrocautery device is used to cut or puncture the papilla 3 near the papilla protrusion 32 to form a perforation, as indicated by the solid arrow, so that the perforation is connected to the ampulla 4.

[0036] After becoming familiar with the action of cutting or puncturing the nipple 3, the simulated common bile duct A can be connected to the ampulla 4. The common bile duct A can be, for example, a rubber tube, a glass tube, a silicone tube, etc., for further training and familiarity with the direction of tube insertion, as shown by the dotted arrow.

[0037] Similar to the aforementioned CN117877357A patent, the present invention also has a simple structure, helping doctors focus on the electrocautery and tube insertion training of the duodenal papilla itself. Doctors do not need to consider the esophagus, stomach, etc., and can be used as the first step of a progressive training model.

[0038] Compared with the aforementioned CN117877357A patent, the structure of the present utility model is closer to the actual condition of the human body's duodenal papilla, and the doctor's hand feeling during practice can be closer to that during actual surgery, thereby improving the effectiveness of practice.

[0039] Based on the description of the above embodiments, one should be able to 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 used to limit the scope of implementation of the present invention. In other words, any simple equivalent changes and modifications made based on the content of the present invention are within the scope of the present invention.

Claims

1. A duodenal papilla prosthesis structure, characterized in that: Include: A base is concave inwardly along a direction to form a first concave portion; a muscle portion coupled to the base in the direction, the muscle portion being concave inwardly along the direction to form a second concave portion; a nipple portion, coupled to the muscle portion in the direction, the nipple portion being concave inwardly along the direction to form a third concave portion; The first inner concave portion, the second inner concave portion and the third inner concave portion are connected to form an ampulla; The nipple portion has a highest nipple convex point in the direction, the ampulla has a deepest ampulla convex point in the direction, and a nipple thickness from the nipple convex point to the ampulla convex point along the direction is between 1 and 5 mm.

2. The duodenal papilla prosthesis structure according to claim 1, characterized in that: The nipple protrusion deviates from a nipple center point of the nipple portion.

3. The duodenal papilla prosthesis structure according to claim 1, characterized in that: The ampulla has an inner surface, and the curvature direction of the inner surface is the same as the direction of a common bile duct.

4. The duodenal papilla prosthesis structure according to claim 1, characterized in that: When viewed parallel to the direction, the muscle portion is a round or oval structure.

5. The duodenal papilla prosthesis structure according to claim 1, characterized in that: When viewed parallel to the direction, the nipple portion has a nipple width, and the muscle portion has a muscle width. The nipple width is between 25% and 50% of the muscle width.

6. The duodenal papilla prosthesis structure according to claim 1, characterized in that: Observed in parallel with the direction, the nipple portion has a nipple length, the muscle portion has a muscle length, and the nipple length is between 57% and 60% of the muscle length.

7. The duodenal papilla prosthesis structure according to claim 1, characterized in that: Observing in parallel with the direction, the nipple portion has a nipple center point, and the muscle portion has a muscle center point, and the nipple center point does not coincide with the muscle center point.

8. The duodenal papilla prosthesis structure according to claim 1, characterized in that: The base, the muscle portion and the nipple portion are all made of conductive materials.

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