Stent for preventing gastro-esophageal anastomotic stoma stenosis
By setting up multiple sets of inflatable filling devices and length adjustment devices in the stent of gastroesophageal anastomosis, the problem of inability to work during use and inconvenient length adjustment during the use is solved, and higher stability and adaptability are achieved, effectively preventing gastroesophageal anastomosis stenosis.
Patent Information
- Application Number
- CN202411689192.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-25
- Publication Date
- 2025-03-04
AI Technical Summary
In the prior art, airbags are prone to inability to work during use, and the length and position of the airbags are inconvenient to adjust, resulting in the inability to effectively prevent gastroesophageal anastomosis stenosis.
A stent to prevent the stenosis of the gastroesophageal anastomosis is designed. By setting up multiple sets of inflatable filling devices and length adjustment devices, it is ensured that it can be used alone when there is a problem with the inflatable filling device and can be placed in an appropriate position.
It effectively avoids the occurrence of safety hazards during use, improves the stability and adaptability of the airbag, and enhances the prevention effect of gastroesophageal anastomosis stenosis.
Smart Images
Figure CN119548295A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of gastroesophageal anastomotic stenosis, in particular to a stent for preventing gastroesophageal anastomotic stenosis. Background Art
[0002] In recent years, as the incidence of upper gastric adenocarcinoma has been increasing year by year, the proportion of total gastrectomy in gastric cancer surgery has also been increasing. Digestive tract reconstruction after total gastrectomy is one of the keys to the success of the operation, and it is related to whether the patient can recover quickly after surgery and obtain a better long-term quality of life. Esophagojejunostomy is still the only way to reconstruct the digestive tract after total gastrectomy for gastric cancer, and it is also the difficulty and focus of the operation. Anastomosis-related complications seriously affect the patient's postoperative recovery and short-term and long-term efficacy, and even lead to unplanned reoperation or patient death. Clinically, the main complications related to esophagojejunostomy are anastomotic fistula, anastomotic bleeding, and anastomotic stenosis. Although the incidence of anastomotic-related complications has decreased significantly with the advancement and development of anastomotic instruments and operating techniques, current studies show that the incidence is still about 1.2% to 14.6%.
[0003] The stent for preventing gastroesophageal anastomotic stenosis is a medical auxiliary technology, which is widely used in medical diagnosis and other fields. The test strip is mainly composed of an inflatable tube, a gastric tube, a moving block, a locking ring, a leak-proof pad and an air bag. Its working principle is to place the gastric tube, the hose, the first air bag and the second air bag at appropriate positions in the esophagus. When the required length is longer, pull the bellows to increase the length. The moving block is placed in the mouth, the silicone is placed on the face, the first inflatable tube is placed in the first threaded head and in close contact with the second channel, the first locking ring is rotated and threadedly connected with the first threaded head. At this time, the first leak-proof ring inside the first locking ring is tightly connected with the first inflatable tube, the second inflatable tube is placed in the third threaded head and in close contact with the first channel. At this time, the second leak-proof ring inside the second locking ring is in close contact with the second inflatable tube, the second elastic connecting tube is fixedly connected to the bottom of the first channel, and a second branch tube is arranged on the outside of the second elastic connecting tube. The second branch tube is connected to the second airbag, and the first elastic connecting tube is fixedly connected to the bottom of the second channel. The outside of the first elastic connecting tube is connected to the first airbag through the first branch tube. In order to improve the stability of the filling gas, two groups of inflation devices are provided. When one group is unstable, the other group can play a single supporting role, which is beneficial to the stability of the surgical process and the subsequent process. The gas is passed through the first inflation tube into the second channel and flows into the first elastic connecting tube through the external inflation device. Finally, the first airbag is filled through the first branch tube. The gas is passed through the second inflation tube into the first channel and flows into the second elastic connecting tube through the external inflation device. Finally, the second airbag is filled through the second branch tube. Summary of the invention
[0004] In view of the deficiencies of the prior art, the present invention provides a stent for preventing gastroesophageal anastomotic stoma stenosis, which solves the problems of the airbag failing to work during use and the length and position limitations of the airbag.
[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a stent for preventing gastroesophageal anastomotic stenosis, comprising: a moving block, a first threaded head fixedly connected to the upper surface of the moving block, a first locking ring threadedly connected to the outer surface of the first threaded head, a first leak-proof ring fixedly connected to the inner wall of the first locking ring, the inner wall of the first leak-proof ring contacts with a first inflation tube, a third threaded head fixedly connected to the upper surface of the moving block, a second locking ring threadedly connected to the outer surface of the third threaded head, a second leak-proof ring fixedly connected to the inner wall of the second locking ring, the inner wall of the second leak-proof ring contacts with a second inflation tube, the lower surface of the first inflation tube is connected to a second channel, and the lower surface of the second channel is fixedly connected to the second channel. The movable block is fixedly connected with a first elastic connecting tube, the lower surface of the second inflation tube is connected with the first channel, the lower surface of the first channel is fixedly connected with a second elastic connecting tube, the upper surface of the movable block is fixedly connected with a second threaded head, the outer surface of the second threaded head is threadedly connected with a third locking ring, the inner wall of the third locking ring is fixedly connected with an anti-slip pad, and the inner wall of the anti-slip pad is slidably connected with a gastric tube; the lower surface of the movable block is fixedly connected with a bellows, the lower surface of the bellows is fixedly connected with a hose, the outer surface of the first elastic connecting tube is provided with a first branch tube, the front end of the first branch tube is provided with a first air bag, the outer surface of the second elastic connecting tube is provided with a second branch tube, and the front end of the second branch tube is provided with a second air bag.
[0006] Preferably, a first hole is provided inside the moving block, and an inner wall of the first hole is slidably connected to the gastric tube.
[0007] Preferably, the outer surface of the moving block is fixedly connected with silica gel, and the inner wall of the hose is in contact with the gastric tube.
[0008] Preferably, there are multiple and evenly distributed first airbags, and the inner wall of the first airbag is fixedly connected to the hose.
[0009] Preferably, a second hole is provided inside the hose, an inner wall of the second hole contacts the first elastic connecting tube, and a fourth hole is provided on the outer surface of the hose, an inner wall of the fourth hole contacts the first branch tube.
[0010] Preferably, the number of the second airbags is multiple and evenly distributed, and the inner wall of the second airbag is fixedly connected to the hose.
[0011] Preferably, a fixing piece is fixedly connected to the outer surface of the gastric tube, and the outer surface of the fixing piece is fixedly connected to the hose.
[0012] Preferably, a third hole is provided inside the hose, the inner wall of the third hole is in contact with the second elastic connecting tube, and a fifth hole is provided on the outer surface of the hose, the inner wall of the fifth hole is in contact with the second branch tube.
[0013] The present invention provides a stent for preventing gastroesophageal anastomotic stenosis. The stent has the following beneficial effects: the stent for preventing gastroesophageal anastomotic stenosis can be used alone by providing multiple sets of inflatable filling devices when the inflatable filling devices have problems, thereby avoiding potential safety hazards during use, and the device is provided with a length adjustment device to facilitate placing the airbag in a suitable position. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention;
[0015] Figure 2 It is a schematic diagram of the position adjustment device of the present invention;
[0016] Figure 3 It is a schematic diagram of the connection structure of the present invention;
[0017] Figure 4 It is a schematic diagram of the airbag connection structure of the present invention;
[0018] Figure 5 This is a schematic diagram of the connection between the hose and the end of the stomach tube of the present invention;
[0019] Figure 6 It is a schematic diagram of the internal structure of the hose of the present invention.
[0020] Among them, 1. moving block; 2. first locking ring; 3. first inflation tube; 4. second locking ring; 5. second inflation tube; 6. first threaded head; 7. second threaded head; 8. anti-slip pad; 9. third locking ring; 10. gastric tube; 11. silicone; 12. first hole; 13. first elastic connecting tube; 14. second elastic connecting tube; 15. first channel; 16. second channel; 17. bellows; 18. first branch tube; 19. second branch tube; 20. first air bag; 21. second air bag; 22. hose; 23. fixing piece; 24. second hole; 25. third hole; 26. fourth hole; 27. fifth hole; 28. third threaded head; 29. first leak-proof ring; 30. second leak-proof ring. DETAILED DESCRIPTION
[0021] 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.
[0022] like Figure 1-6 As shown, an embodiment of the present invention provides a stent for preventing gastroesophageal anastomotic stenosis, comprising a moving block 1, a first threaded head 6 is fixedly connected to the upper surface of the moving block 1, a first locking ring 2 is threadedly connected to the outer surface of the first threaded head 6, a first leak-proof ring 29 is fixedly connected to the inner wall of the first locking ring 2, the inner wall of the first leak-proof ring 29 is in contact with the first inflation tube 3, a third threaded head 28 is fixedly connected to the upper surface of the moving block 1, a second locking ring 4 is threadedly connected to the outer surface of the third threaded head 28, a second leak-proof ring 30 is fixedly connected to the inner wall of the second locking ring 4, and a third threaded head 28 is fixedly connected to the upper surface of the moving block 1. The inner wall of the second leak-proof ring 30 is in contact with the second inflation tube 5, the lower surface of the first inflation tube 3 is connected to the second channel 16, the lower surface of the second channel 16 is fixedly connected with the first elastic connecting tube 13, the lower surface of the second inflation tube 5 is connected to the first channel 15, the lower surface of the first channel 15 is fixedly connected with the second elastic connecting tube 14, the upper surface of the moving block 1 is fixedly connected with the second threaded head 7, the outer surface of the second threaded head 7 is threadedly connected with the third locking ring 9, the inner wall of the third locking ring 9 is fixedly connected with the anti-slip pad 8, and the inner wall of the anti-slip pad 8 is slidably connected with the gastric tube 10.
[0023] The lower surface of the moving block 1 is fixedly connected with a bellows 17, the lower surface of the bellows 17 is fixedly connected with a hose 22, the outer surface of the first elastic connecting tube 13 is provided with a first branch tube 18, the front end of the first branch tube 18 is provided with a first air bag 20, the outer surface of the second elastic connecting tube 14 is provided with a second branch tube 19, the front end of the second branch tube 19 is provided with a second air bag 21, the interior of the moving block 1 is provided with a first hole 12, the inner wall of the first hole 12 is slidably connected to the gastric tube 10, the outer surface of the moving block 1 is fixedly connected with silica gel 11, the inner wall of the hose 22 is in contact with the gastric tube 10, the number of the first air bags 20 is multiple and evenly distributed, and the inner wall of the first air bag 20 is fixedly connected to the hose 22 A second hole 24 is provided inside the hose 22, and the inner wall of the second hole 24 contacts the first elastic connecting tube 13. A fourth hole 26 is provided on the outer surface of the hose 22, and the inner wall of the fourth hole 26 contacts the first branch tube 18. There are multiple second air bags 21 and they are evenly distributed. The inner wall of the second air bag 21 is fixedly connected to the hose 22. A fixing piece 23 is fixedly connected to the outer surface of the gastric tube 10, and the outer surface of the fixing piece 23 is fixedly connected to the hose 22. A third hole 25 is provided inside the hose 22, and the inner wall of the third hole 25 contacts the second elastic connecting tube 14. A fifth hole 27 is provided on the outer surface of the hose 22, and the inner wall of the fifth hole 27 contacts the second branch tube 19.
[0024] Working principle: Place the gastric tube 10, the hose 22, the first airbag 20 and the second airbag 21 at appropriate positions of the esophagus. When the required length is longer, pull the bellows 17 to increase the length. Place the moving block 1 at the mouth, place the silicone 11 on the face, place the first inflation tube 3 in the first threaded head 6 and in close contact with the second channel 16, rotate the first locking ring 2 and thread it with the first threaded head 6, at this time, the first leak-proof ring 29 inside the first locking ring 2 is tightly connected to the first inflation tube 3, place the second inflation tube 5 in the third threaded head 28 and in close contact with the first channel 15, at this time, the second leak-proof ring 30 inside the second locking ring 4 is in close contact with the second inflation tube 5, and a second elastic connecting tube 14 is fixedly connected to the bottom of the first channel 15, and a second branch tube is arranged on the outside of the second elastic connecting tube 14 19, the second branch pipe 19 is connected to the second airbag 21, the first elastic connecting tube 13 is fixedly connected to the bottom of the second channel 16, the outside of the first elastic connecting tube 13 is connected to the first airbag 20 through the first branch pipe 18, in order to improve the stability of the filling gas, by setting two groups of inflation devices, when one group is unstable, the other group can play a single supporting role, which is beneficial to the stability of the surgical process and the subsequent process, the gas is passed through the first inflation tube 3 into the second channel 16 and flows into the first elastic connecting tube 13 through the external inflation device, and finally the first airbag 20 is filled through the first branch pipe 18, the gas is passed through the second inflation tube 5 into the first channel 15 and flows into the second elastic connecting tube 14 through the external inflation device, and finally the second airbag 21 is filled through the second branch pipe 19.
[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A stent for preventing gastroesophageal anastomotic stenosis, characterized in that: include: A moving block (1), wherein the upper surface of the moving block (1) is fixedly connected to a first threaded head (6), the outer surface of the first threaded head (6) is threadedly connected to a first locking ring (2), the inner wall of the first locking ring (2) is fixedly connected to a first leak-proof ring (29), the inner wall of the first leak-proof ring (29) is in contact with a first inflation tube (3), the upper surface of the moving block (1) is fixedly connected to a third threaded head (28), the outer surface of the third threaded head (28) is threadedly connected to a second locking ring (4), the inner wall of the second locking ring (4) is fixedly connected to a second leak-proof ring (30), the inner wall of the second leak-proof ring (30) is in contact with a second inflation tube ( 5), the lower surface of the first inflation tube (3) is connected to the second channel (16), the lower surface of the second channel (16) is fixedly connected to the first elastic connecting tube (13), the lower surface of the second inflation tube (5) is connected to the first channel (15), the lower surface of the first channel (15) is fixedly connected to the second elastic connecting tube (14), the upper surface of the moving block (1) is fixedly connected to the second threaded head (7), the outer surface of the second threaded head (7) is threadedly connected to the third locking ring (9), the inner wall of the third locking ring (9) is fixedly connected to the anti-skid pad (8), and the inner wall of the anti-skid pad (8) is slidably connected to the stomach tube (10); The lower surface of the moving block (1) is fixedly connected to a bellows (17), the lower surface of the bellows (17) is fixedly connected to a hose (22), the outer surface of the first elastic connecting tube (13) is provided with a first branch tube (18), the front end of the first branch tube (18) is provided with a first airbag (20), the outer surface of the second elastic connecting tube (14) is provided with a second branch tube (19), the front end of the second branch tube (19) is provided with a second airbag (21).
2. A stent for preventing gastroesophageal anastomotic stenosis according to claim 1, characterized in that: A first hole (12) is provided inside the moving block (1), and an inner wall of the first hole (12) is slidably connected to the gastric tube (10).
3. A stent for preventing gastroesophageal anastomotic stenosis according to claim 1, characterized in that: The outer surface of the moving block (1) is fixedly connected with silica gel (11), and the inner wall of the hose (22) is in contact with the gastric tube (10).
4. A stent for preventing gastroesophageal anastomotic stenosis according to claim 1, characterized in that: The number of the first airbags (20) is multiple and evenly distributed, and the inner wall of the first airbag (20) is fixedly connected to the hose (22).
5. The stent for preventing gastroesophageal anastomotic stenosis according to claim 1, characterized in that: A second hole (24) is provided inside the hose (22), and the inner wall of the second hole (24) is in contact with the first elastic connecting tube (13). A fourth hole (26) is provided on the outer surface of the hose (22), and the inner wall of the fourth hole (26) is in contact with the first branch tube (18).
6. The stent for preventing gastroesophageal anastomotic stenosis according to claim 1, characterized in that: The number of the second airbags (21) is multiple and evenly distributed, and the inner wall of the second airbag (21) is fixedly connected to the hose (22).
7. The stent for preventing gastroesophageal anastomotic stenosis according to claim 1, characterized in that: The outer surface of the stomach tube (10) is fixedly connected to a fixing piece (23), and the outer surface of the fixing piece (23) is fixedly connected to the hose (22).
8. The stent for preventing gastroesophageal anastomotic stenosis according to claim 1, characterized in that: A third hole (25) is provided inside the hose (22), and the inner wall of the third hole (25) is in contact with the second elastic connecting tube (14). A fifth hole (27) is provided on the outer surface of the hose (22), and the inner wall of the fifth hole (27) is in contact with the second branch tube (19).