Pancreatic-intestinal drainage system

Abstract

The invention discloses a pancreas-intestine drainage system which comprises an intestine segment tube and a pancreas segment tube. The rear part of the intestine section tube is a drainage intestine inner section, and the front part is a drainage pancreatic inner section; an elastic body is formed on the outer wall of the front part of the drainage intrapancreatic section; a flexible gasket is coaxially mounted and fixed outside the pipe wall of the middle part of the intestine section pipe; a plurality of drainage holes are formed in the tube wall of the pancreatic section tube; the front portion of the drainage intra-pancreatic section on the front portion of the intestine section tube is inserted into the rear portion of the pancreatic section tube, and the elastic body on the outer wall of the front portion of the drainage intra-pancreatic section is pressed and deformed, so that the intestine section tube and the pancreatic section tube are installed, fixed and communicated together. According to the pancreatic-intestinal drainage system, through split type arrangement, the adaptability and flexibility of the system are enhanced, the installation and fixing process is simple and convenient, the pancreatic duct and the intestinal duct are connected more tightly, connection and healing of the intestinal duct and the pancreatic duct are facilitated, and it is ensured that pancreatic-intestinal drainage liquid is discharged smoothly.

Description

Technical Field

[0001] The invention relates to medical equipment technology, and in particular to a pancreatico-enteric drainage system. Background Art

[0002] In modern surgery, pancreaticoduodenectomy is an important surgical method for treating diseases of the pancreatic head, lower end of the common bile duct, ampulla and part of the duodenum. Despite the continuous advancement of surgical techniques, the optimization of pancreatic duct drainage methods is still the key to improving the success rate of surgery and reducing complications. Pancreatic fistula is the most common and most serious complication after pancreaticoduodenectomy, which has a great impact on the patient's prognosis and quality of life. Although traditional pancreatic duct drainage techniques, such as internal drainage tubes or external drainage tubes, have reduced the occurrence of pancreatic fistulas to a certain extent, there are still problems such as poor drainage, complicated operation, and difficult postoperative management.

[0003] In recent years, the role of different drainage methods of pancreatic duct support tubes in reducing the incidence of pancreatic fistula has become a research hotspot. However, the drainage tube design in the prior art is often a single structure, which limits its adaptability and flexibility in the pancreas and intestine. In addition, the single drainage tube is easily deformed or bent when running in the intestinal cavity, resulting in poor drainage and increasing the risk of postoperative complications. Therefore, there is an urgent need for a new drainage tube design to improve drainage efficiency, simplify the operation process, and reduce the occurrence of postoperative complications. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a pancreatic intestinal drainage system, which enhances the adaptability and flexibility of the system, simplifies the installation and fixation process, makes the connection between the pancreatic duct and the intestinal duct tighter, facilitates the healing of the connection between the intestinal duct and the pancreatic duct, and ensures smooth discharge of the pancreatic intestinal drainage fluid.

[0005] In order to solve the above technical problems, the present invention provides a pancreatic intestinal drainage system, which includes an intestinal segment tube 1 and a pancreatic segment tube 3;

[0006] The intestinal segment tube 1 has a rear portion that is an intestinal drainage segment 11 and a front portion that is a pancreatic drainage segment 12;

[0007] The front outer wall of the drainage pancreatic inner segment 12 is formed with an elastic body;

[0008] A flexible gasket 2 is coaxially mounted and fixed outside the middle tube wall of the intestinal tube 1;

[0009] The wall of the pancreatic segment tube 3 is provided with a plurality of drainage holes;

[0010] The intestinal tube 1 and the pancreatic tube 3 are fixedly connected together by inserting the front part of the drainage pancreatic segment 12 at the front part of the intestinal tube 1 into the rear part of the pancreatic tube 3 and compressing and deforming the elastic body of the front outer wall of the drainage pancreatic segment 12.

[0011] Preferably, the pancreatic segment tube 3 is composed of a fixed segment 33, a connecting segment 32 and a ball head segment 31 from back to front;

[0012] The ball head section 31 is spherical;

[0013] The front end of the tube wall of the connecting section 32 is connected to the rear end of the spherical ball head section 31;

[0014] The front end of the tube wall of the fixed section 33 is connected to the rear end of the tube wall of the connecting section 32;

[0015] A plurality of first drainage holes 311 are evenly formed on the spherical surface of the ball head section 31;

[0016] A plurality of second drainage holes 321 are evenly formed on the tube wall of the connecting section 32;

[0017] A plurality of third drainage holes 332 are evenly formed on the tube wall of the fixed section 33;

[0018] The fixing section 33 is used to be connected and fixed with the front part of the drainage pancreatic section 12 at the front part of the intestinal section tube 1 .

[0019] Preferably, the outer wall of the tube wall of the fixing section 33 is provided with a fixing thread 331;

[0020] The diameter of the third drainage hole 332 is smaller than the diameters of the second drainage hole 321 and the first drainage hole 311 .

[0021] Preferably, the inner wall of the fixed section 33 of the pancreatic segment tube 3 is provided with an internal thread;

[0022] The front outer wall of the drainage pancreatic segment 12 at the front of the intestinal segment tube 1 is provided with an external thread that matches with the drainage pancreatic segment 12, and the drainage pancreatic segment 12 is connected to the pancreatic segment tube 3 through the thread.

[0023] Preferably, a plurality of axial elastic bosses 121 distributed along the circumference are provided on the front outer wall of the intrapancreatic drainage segment 12 .

[0024] Preferably, the front end of the axial elastic boss 121 is provided with an end surface fixing ring 142;

[0025] The front end of the end surface fixing ring 142 is a curved surface;

[0026] The end surface fixing ring 142 is used to fix and bind the front ends of the plurality of elastic bosses 121 together.

[0027] Preferably, each elastic boss 121 is formed with a plurality of arc-shaped abutting protrusions 122 distributed along the axial direction.

[0028] Preferably, each elastic boss 121 is formed with a plurality of unidirectional elastic fixing wings 125 distributed along the axial direction;

[0029] The front end of the one-way elastic fixing wing 125 is connected to the elastic boss 121 , and the rear end is opened away from the elastic boss 121 , so that the one-way elastic fixing wing 125 and the elastic boss 121 are arranged at an acute angle axially.

[0030] Preferably, the elastic boss 121 at the one-way elastic fixing wing 125 is correspondingly formed with a fixing wing through hole 129;

[0031] The inner wall of the fixing section 33 of the pancreatic segment tube 3 is provided with a plurality of unidirectional fixing grooves 334 evenly distributed in the axial direction;

[0032] The intestinal segment tube 1 and the pancreatic segment tube 3 are connected and fixed by the cooperation of the one-way fixing groove 334 and the one-way elastic fixing wing 125 .

[0033] Preferably, the outer wall of the fixed section 33 of the pancreatic segment tube 3 is provided with a plurality of linearly arranged one-way fixed skirts 333;

[0034] The one-way fixed skirt 333 has a front end fixed to the outer wall of the fixed section 33 of the pancreatic segment tube 3 and a rear end opened to form a trumpet shape.

[0035] Preferably, a pancreatic duct sealing ring 34 is provided at the rear end of the fixed section 33 of the pancreatic segment tube 3;

[0036] The pancreatic duct sealing ring 34 is in the shape of a trumpet with an open rear end;

[0037] The outer side of the pancreatic duct sealing ring 34 is used to abut against the pancreatic duct to prevent the drainage liquid from flowing out.

[0038] Preferably, the maximum outer diameters of the one-way fixing skirt 333 and the pancreatic duct sealing ring 34 are consistent.

[0039] Preferably, the flexible gasket 2, the intestinal tube 1, the pancreatic tube 3 and the one-way fixed skirt 333 are all made of plastic, silicone or rubber.

[0040] Preferably, an enteropancreatic sealing ring 13 is provided on the middle outer wall of the drainage pancreatic intra-pancreatic segment 12;

[0041] A sealing slope is formed on one end of the enteropancreatic sealing ring 13 close to the pancreatic segment tube 3;

[0042] The sealing of the drainage liquid is achieved by making the sealing slope of the enteropancreatic sealing ring 13 abut against the inner wall of the rear end of the pancreatic segment tube 3 .

[0043] Preferably, the flexible gasket 2 is spherical crown-shaped, and the front side is an arc surface, which is used to abut against the inner wall of the intestinal tract.

[0044] Preferably, a fixed ring platform 21 is provided on the rear side of the flexible gasket 2, and the fixed ring platform 21 is sleeved on the middle part of the intestinal tube 1;

[0045] The tube wall of the drainage intestinal segment 11 is provided with auxiliary drainage holes.

[0046] The pancreatic intestinal drainage system of the present invention, when in use, installs the pancreatic segment tube 3 in the pancreatic duct, installs the drainage intestinal segment 11 of the intestinal segment tube 1 in the intestinal duct, and the middle of the intestinal segment tube 1 passes through the wall of the intestinal duct when it is installed, and the flexible gasket 2 is arranged in the intestinal duct, and the front side of the flexible gasket 2 abuts against the inner wall of the intestinal duct. The pancreatic intestinal drainage system, through a split arrangement, the flexible gasket 2 is installed in the intestinal duct, which enhances the adaptability and flexibility of the system, simplifies the installation and fixing process, reduces the difficulty of operation, simplifies the operation process, makes the connection between the pancreatic duct and the intestinal duct tighter, facilitates the healing of the connection between the intestinal duct and the pancreatic duct, reduces the problem of poor drainage, ensures the smooth discharge of pancreatic intestinal drainage fluid, reduces the possibility of pancreatic leakage and chronic inflammation, improves the success rate of surgery, reduces the risk of postoperative complications, and reduces the complexity of intraoperative and postoperative management. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] In order to more clearly illustrate the technical solution of the present invention, the following briefly introduces the drawings required for use in the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0048] Figure 1 It is a schematic structural diagram of an embodiment of a pancreatic intestinal drainage system of the present invention;

[0049] Figure 2 yes Figure 1 A schematic diagram of the pancreatic segment tube structure of the illustrated embodiment;

[0050] Figure 3 is a schematic structural diagram of another embodiment of the pancreatic intestinal drainage system of the present invention;

[0051] Figure 4 yes Figure 3 A schematic diagram of the pancreatic segment tube structure of the illustrated embodiment;

[0052] Figure 5 It is a schematic diagram of the use status of the pancreatic intestinal drainage system of the present invention.

[0053] Description of reference numerals:

[0054] 1. Intestinal segment tube; 11. Drainage intestinal segment; 12. Drainage pancreatic segment; 2. Flexible gasket; 3. Pancreatic segment tube; 33. Fixed segment; 32. Connecting segment; 31. Ball head segment; 311. First drainage hole; 321. Second drainage hole; 332. Third drainage hole; 331. Fixed thread; 121. Elastic boss; 142 End face fixing ring; 122. Resistance boss; 125. One-way elastic fixing wing; 129. Fixing wing through hole; 334. One-way fixing groove; 333. One-way fixing skirt; 34. Pancreatic duct sealing ring; 13. Intestinal pancreatic sealing ring; 21. Fixed ring platform. DETAILED DESCRIPTION

[0055] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0056] The words "first", "second" and similar terms used in this application do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "include" or "comprises" and similar terms mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" and similar terms are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right", "front", "back" and the like are only used to indicate relative position relationships. When the absolute position of the object being described changes, the relative position relationship may also change accordingly.

[0057] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0058] Embodiment 1

[0059] like Figure 1 , Figure 3 As shown, the pancreatico-intestinal drainage system includes an intestinal segment tube 1 and a pancreatic segment tube 3;

[0060] The intestinal segment tube 1 has a rear portion that is an intestinal drainage segment 11 and a front portion that is a pancreatic drainage segment 12;

[0061] The front outer wall of the drainage pancreatic inner segment 12 is formed with an elastic body;

[0062] A flexible gasket 2 is coaxially mounted and fixed outside the middle tube wall of the intestinal tube 1;

[0063] The wall of the pancreatic segment tube 3 is provided with a plurality of drainage holes;

[0064] The intestinal tube 1 and the pancreatic tube 3 are fixedly connected together by inserting the front part of the drainage pancreatic segment 12 at the front part of the intestinal tube 1 into the rear part of the pancreatic tube 3 and compressing and deforming the elastic body of the front outer wall of the drainage pancreatic segment 12.

[0065] The pancreatic intestinal drainage system of the first embodiment, when in use, Figure 5 As shown, the pancreatic segment tube 3 is installed in the pancreatic duct, and the drainage intestinal segment 11 of the intestinal segment tube 1 is installed in the intestinal tube. When the intestinal segment tube 1 is installed, the middle part of the intestinal segment tube passes through the intestinal tube wall, and the flexible gasket 2 is arranged in the intestinal tube, and the front side of the flexible gasket 2 is against the inner wall of the intestinal tube.

[0066] The pancreatic intestinal drainage system of Example 1 is arranged in a split manner, and the flexible gasket 2 is installed in the intestinal duct, which enhances the adaptability and flexibility of the system, simplifies the installation and fixing process, reduces the difficulty of operation, simplifies the operation process, makes the connection between the pancreatic duct and the intestinal duct tighter, facilitates the healing of the connection between the intestinal duct and the pancreatic duct, reduces the problem of poor drainage, ensures the smooth discharge of pancreatic intestinal drainage fluid, reduces the possibility of pancreatic leakage and chronic inflammation, improves the success rate of surgery, reduces the risk of postoperative complications, and reduces the complexity of intraoperative and postoperative management.

[0067] Embodiment 2

[0068] Based on the implementation of a pancreatico-enteric drainage system, such as Figure 2 , Figure 4 As shown, the pancreatic segment tube 3 is composed of a fixed segment 33, a connecting segment 32 and a ball head segment 31 from back to front;

[0069] The ball head section 31 is spherical;

[0070] The front end of the tube wall of the connecting section 32 is connected to the rear end of the spherical ball head section 31;

[0071] The front end of the tube wall of the fixed section 33 is connected to the rear end of the tube wall of the connecting section 32;

[0072] A plurality of first drainage holes 311 are evenly formed on the spherical surface of the ball head section 31;

[0073] A plurality of second drainage holes 321 are evenly formed on the tube wall of the connecting section 32;

[0074] A plurality of third drainage holes 332 are evenly formed on the tube wall of the fixed section 33;

[0075] The fixing section 33 is used to be connected and fixed with the front part of the drainage pancreatic section 12 at the front part of the intestinal section tube 1 .

[0076] In the pancreatic intestinal drainage system of the second embodiment, the ball head section 31 at the front of the pancreatic segment tube 3 is spherical, which can avoid secondary damage to the pancreatic duct when installing the pancreatic segment tube 3.

[0077] Embodiment 3

[0078] Based on the pancreatico-enteric drainage system of implementation II, such as Figure 2 As shown, the outer wall of the tube wall of the fixing section 33 is provided with a fixing thread 331 .

[0079] Preferably, the diameter of the third drainage hole 332 is smaller than the diameters of the second drainage hole 321 and the first drainage hole 311 , so that the strength of the fixing thread 331 can be ensured while ensuring smooth drainage.

[0080] In the pancreatic enteric drainage system of the third embodiment, the pancreatic segment tube 3 is installed and fixed with the pancreatic duct through the fixing thread 331, so as to ensure the installation firmness of the pancreatic segment tube 3, avoid the pancreatic segment tube 3 from falling off after the operation, and improve the safety and reliability of the system.

[0081] Embodiment 4

[0082] Based on the pancreatico-enteric drainage system of implementation II, such as Figure 4 As shown, the outer wall of the fixed segment 33 of the pancreatic segment tube 3 is provided with a plurality of linearly arranged unidirectional fixed skirts 333;

[0083] The one-way fixed skirt 333 has a front end fixed to the outer wall of the fixed section 33 of the pancreatic segment tube 3 and a rear end opened to form a trumpet shape.

[0084] Preferably, a pancreatic duct sealing ring 34 is provided at the rear end of the fixed section 33 of the pancreatic segment tube 3;

[0085] The pancreatic duct sealing ring 34 is in the shape of a trumpet with an open rear end;

[0086] The outer side of the pancreatic duct sealing ring 34 is used to abut against the pancreatic duct to prevent the drainage liquid from flowing out.

[0087] Preferably, the maximum outer diameters of the one-way fixed skirt 333 and the pancreatic duct sealing ring 34 are consistent, and the end face of the pancreatic segment tube 3 can be sealed by the one-way fixed skirt 333. At the same time, such a design can cut the pancreatic segment tube 3 according to actual needs to ensure the applicability of different patients.

[0088] Preferably, the flexible gasket 2, the intestinal tube 1, the pancreatic tube 3, and the one-way fixed skirt 333 are made of flexible materials such as plastic, silicone or rubber. The use of flexible materials is suitable for various surgical needs, enhances the adaptability in the pancreatic and intestinal parts, and reduces the poor drainage caused by deformation or bending of the tube.

[0089] In the pancreaticoenteric drainage system of the fourth embodiment, the pancreatic segment tube 3 is installed and fixed with the pancreatic duct through the fixing skirt 333, so as to ensure the installation firmness of the pancreatic segment tube 3, avoid the pancreatic segment tube 3 from falling off after operation, and improve the safety and reliability of the system.

[0090] Embodiment 5

[0091] Based on the pancreatic intestinal drainage system of the second embodiment, a plurality of axial elastic bosses 121 distributed along the circumference are provided on the front outer wall of the drainage pancreatic inner segment 12 .

[0092] Preferably, the front end of the elastic boss 121 is provided with an end surface fixing ring 142;

[0093] The front end of the end surface fixing ring 142 is a curved surface;

[0094] The end surface fixing ring 142 is used to fix and bind the front ends of the plurality of elastic bosses 121 together.

[0095] The front ends of the multiple elastic bosses 121 are fixed together by the arc surface end fixing ring 142, and the front end of the end surface fixing ring 142 is used as a guiding arc surface to facilitate the overall and stable insertion of the front part of the drainage pancreatic segment 12 into the fixed segment 33 of the pancreatic segment tube 3.

[0096] In the pancreatic intestinal drainage system of the fifth embodiment, the elastic boss 121 provided on the front outer wall of the drainage pancreatic inner segment 12 is inserted into the rear part of the pancreatic segment tube 3, and the elastic boss 121 on the front outer wall of the drainage pancreatic inner segment 12 is compressed and deformed, so that the intestinal segment tube 1 and the pancreatic segment tube 3 are installed and connected together. The deformation of the elastic boss 121 improves the stability and sealing of the connection, and reduces the occurrence of complications such as postoperative pancreatic leakage and chronic inflammation.

[0097] Embodiment 6

[0098] Based on the pancreatic intestinal drainage system of the fifth embodiment, a plurality of arc-shaped abutment protrusions 122 distributed along the axial direction are formed on each elastic boss 121 .

[0099] The pancreatico-enteric drainage system of the present invention improves the stability and sealing of the connection through the elastic boss 121 and the arc-shaped abutment protrusion 122, and reduces the occurrence of complications such as postoperative pancreatic leakage and chronic inflammation.

[0100] Embodiment 7

[0101] Based on the pancreatic intestinal drainage system of embodiment 5, each elastic boss 121 is formed with a plurality of unidirectional elastic fixing wings 125 distributed along the axial direction;

[0102] The front end of the one-way elastic fixing wing 125 is connected to the elastic boss 121 , and the rear end is opened away from the elastic boss 121 , so that the one-way elastic fixing wing 125 and the elastic boss 121 are arranged at an acute angle axially.

[0103] Preferably, the elastic boss 121 at the one-way elastic fixing wing 125 is formed with a fixing wing through hole 129. The one-way elastic fixing wing 125 and the elastic boss 121 of the drainage pancreatic inner segment 12 can be formed by integral cutting, so that the one-way elastic fixing wing 125 can be processed to form the fixing wing through hole 129 at the same time. The fixing wing through hole 129 formed corresponding to the elastic boss 121 at the one-way elastic fixing wing 125 can make the drainage of liquid smoother.

[0104] Preferably, the inner wall of the fixing section 33 of the pancreatic segment tube 3 is provided with a plurality of unidirectional fixing grooves 334 evenly distributed in the axial direction;

[0105] The intestinal segment tube 1 and the pancreatic segment tube 3 are connected and fixed by the cooperation of the one-way fixing groove 334 and the one-way elastic fixing wing 125, thereby ensuring the fixing effect of the pancreatic duct and the intestinal duct.

[0106] In the pancreatic intestinal drainage system of the seventh embodiment, the axis of the one-way elastic fixing wing 125 is set at an acute angle to the axis of the drainage pancreatic segment 12. When the front part of the drainage pancreatic segment 12 is inserted into the fixing segment 33 of the pancreatic segment tube 3, the one-way elastic fixing wing 125 can be used to achieve one-way fixation to ensure the connection strength between the intestinal segment tube 1 and the pancreatic segment tube 3. The elastic boss 121, the one-way elastic fixing wing 125, and the one-way fixing groove 334 improve the stability and sealing of the connection, avoid the postoperative pipeline from falling off, improve the safety and reliability of the system, and reduce the occurrence of complications such as postoperative pancreatic leakage and chronic inflammation.

[0107] Embodiment 8

[0108] Based on the pancreatic intestinal drainage system of implementation 2, the inner wall of the fixed section 33 of the pancreatic segment tube 3 is provided with an internal thread;

[0109] The front outer wall of the drainage pancreatic segment 12 at the front of the intestinal segment tube 1 is provided with an external thread that matches with the drainage pancreatic segment 12, and the drainage pancreatic segment 12 is connected to the pancreatic segment tube 3 through the thread.

[0110] Embodiment 9

[0111] Based on the pancreatic enteric drainage system of embodiment 1, the middle outer wall of the drainage pancreatic inner segment 12 is provided with an enteropancreatic sealing ring 13;

[0112] A sealing slope is formed on one end of the enteropancreatic sealing ring 13 close to the pancreatic segment tube 3;

[0113] The sealing slope of the enteropancreatic sealing ring 13 is abutted against the inner wall of the rear end of the pancreatic segment tube 3 to seal the drainage liquid, thereby improving the sealing of the pancreatic duct connection and reducing the occurrence of complications such as postoperative pancreatic leakage and chronic inflammation.

[0114] Embodiment 10

[0115] Based on the pancreatic intestinal drainage system of implementation one, the flexible gasket 2 is spherical crown-shaped, and the front side is an arc surface, which is used to abut against the inner wall of the intestinal tract.

[0116] Preferably, a fixed ring platform 21 is provided on the rear side of the flexible gasket 2 , and the fixed ring platform 21 is sleeved on the middle part of the intestinal tube 1 .

[0117] Preferably, the tube wall of the drainage intestinal segment 11 is provided with auxiliary drainage holes for assisting drainage to avoid blockage of the end surface of the drainage intestinal segment 11 causing system failure.

[0118] In the pancreatic intestinal drainage system of embodiment 1, the intestinal segment tube 1 is installed through the flexible gasket 2, the front arc surface of the flexible gasket 2 is close to the drainage pancreatic segment 12, and the front arc surface of the flexible gasket 2 is used to abut against the inner wall of the intestinal tube.

[0119] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A pancreatic and enteric drainage system, characterized in that: It comprises an intestinal segment tube (1) and a pancreatic segment tube (3); The intestinal segment tube (1) has a rear portion for draining the intestine (11) and a front portion for draining the pancreas (12); The front outer wall of the drainage pancreatic segment (12) is formed with an elastic body; A flexible gasket (2) is coaxially mounted and fixed outside the middle tube wall of the intestinal tube (1); The wall of the pancreatic segment tube (3) is provided with a plurality of drainage holes; The intestinal segment tube (1) and the pancreatic segment tube (3) are installed, fixed and connected together by inserting the front part of the drainage pancreatic segment (12) at the front part of the intestinal segment tube (1) into the rear part of the pancreatic segment tube (3) and causing the elastic body of the front outer wall of the drainage pancreatic segment (12) to be compressed and deformed.

2. The pancreatic enteric drainage system according to claim 1, characterized in that: The pancreatic segment tube (3) comprises, from back to front, a fixed segment (33), a connecting segment (32) and a ball head segment (31); The ball head section (31) is spherical; The front end of the tube wall of the connecting section (32) is connected to the rear end of the spherical ball head section (31); The front end of the tube wall of the fixing section (33) is connected to the rear end of the tube wall of the connecting section (32); A plurality of first drainage holes (311) are evenly arranged on the spherical surface of the ball head section (31); A plurality of second drainage holes (321) are evenly arranged on the tube wall of the connecting section (32); A plurality of third drainage holes (332) are evenly arranged on the tube wall of the fixed section (33); The fixing section (33) is used to be connected and fixed to the front part of the drainage pancreatic section (12) at the front part of the intestinal section tube (1).

3. The pancreatic enteric drainage system according to claim 2, characterized in that: The outer wall of the tube of the fixing section (33) is provided with a fixing thread (331); The diameter of the third drainage hole (332) is smaller than the diameters of the second drainage hole (321) and the first drainage hole (311).

4. The pancreatic enteric drainage system according to claim 2, characterized in that: The inner wall of the fixed section (33) of the pancreatic segment tube (3) is provided with an internal thread; The front outer wall of the drainage pancreatic segment (12) at the front of the intestinal segment tube (1) is provided with an external thread that matches the drainage pancreatic segment (12) and the pancreatic segment tube (3) are connected via the thread.

5. The pancreatic enteric drainage system according to claim 2, characterized in that: The front outer wall of the pancreatic drainage section (12) is provided with a plurality of axial elastic bosses (121) distributed along the circumference; The front end of the elastic boss (121) is provided with an end surface fixing ring (142); The front end of the end surface fixing ring (142) is a curved surface; The end surface fixing ring (142) is used to fix and bind the front ends of the plurality of elastic bosses (121) together.

6. The pancreatic enteric drainage system according to claim 5, characterized in that: Each elastic boss (121) is formed with a plurality of arc-shaped abutting protrusions (122) distributed along the axial direction.

7. The pancreatic enteric drainage system according to claim 5, characterized in that: A plurality of one-way elastic fixing wings (125) distributed along the axial direction are formed on each elastic boss (121); The front end of the one-way elastic fixing wing (125) is connected to the elastic boss (121), and the rear end is opened away from the elastic boss (121), so that the one-way elastic fixing wing (125) and the elastic boss (121) are arranged at an acute angle axially; The elastic boss (121) at the one-way elastic fixing wing (125) is correspondingly formed with a fixing wing through hole (129); The inner wall of the fixing section (33) of the pancreatic segment tube (3) is provided with a plurality of unidirectional fixing grooves (334) evenly distributed in the axial direction; The intestinal segment tube (1) and the pancreatic segment tube (3) are connected and fixed by the cooperation of the one-way fixing groove (334) and the one-way elastic fixing wing (125).

8. The pancreatic enteric drainage system according to claim 2, characterized in that: The outer wall of the fixed section (33) of the pancreatic segment tube (3) is provided with a plurality of linearly arranged one-way fixed skirts (333); The one-way fixed skirt (333) has a front end fixed to the outer wall of the fixed section (33) of the pancreatic segment tube (3) and a rear end opened to form a trumpet shape; A pancreatic duct sealing ring (34) is provided at the rear end of the fixed section (33) of the pancreatic segment tube (3); The pancreatic duct sealing ring (34) is in the shape of a trumpet with an open rear end; The outer side of the pancreatic duct sealing ring (34) is used to abut against the pancreatic duct to prevent the drainage liquid from flowing out; The maximum outer diameters of the one-way fixed skirt (333) and the pancreatic duct sealing ring (34) are consistent; The flexible gasket (2), the intestinal tube (1), the pancreatic tube (3) and the one-way fixed skirt (333) are all made of plastic, silicone or rubber.

9. The pancreatic enteric drainage system according to claim 1, characterized in that: An enteropancreatic sealing ring (13) is provided on the middle outer wall of the drainage pancreatic intra-pancreatic segment (12); A sealing slope is formed on one end of the enteropancreatic sealing ring (13) close to the pancreatic segment tube (3); The sealing of the drainage liquid is achieved by making the sealing slope of the enteropancreatic sealing ring (13) abut against the inner wall of the rear end of the pancreatic segment tube (3).

10. The pancreatic enteric drainage system according to claim 1, characterized in that: The flexible gasket (2) is in the shape of a spherical crown, and the front side is a circular arc surface, and is used to abut against the inner wall of the intestinal tube; A fixed ring platform (21) is provided on the rear side of the fitting flexible gasket (2), and the fixed ring platform (21) is sleeved on the middle part of the intestinal segment tube (1); The tube wall of the drainage intestinal section (11) is provided with auxiliary drainage holes.

Images