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Extensible anti-reflux pancreatic stump anastomosis support tube

An extension and support tube technology, applied in the field of medical devices, can solve problems such as pancreatic fistula

Inactive Publication Date: 2021-11-05
王铁功
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides an extendable anti-reflux pancreatic stump anastomosis support tube, which effectively solves the problem that neither pancreaticojejunostomy nor pancreaticogastric anastomosis can Avoid the risk of dehiscence, leading to anastomotic leakage, and then the occurrence of pancreatic fistula

Method used

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  • Extensible anti-reflux pancreatic stump anastomosis support tube
  • Extensible anti-reflux pancreatic stump anastomosis support tube
  • Extensible anti-reflux pancreatic stump anastomosis support tube

Examples

Experimental program
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Effect test

Embodiment 1

[0027] Embodiment one, by Figure 1-Figure 6 Given, the present invention includes a support outer sleeve 1, an anti-reflux assembly 2, a support inner sleeve 3, a connecting film 4, a stent-graft 5 and a bare stent 6, and one end of the support outer sleeve 1 is connected with an anti-reflux assembly 2, and the anti-reflux assembly 2 is connected to an anti-reflux assembly. The reflux component 2 can provide anti-reflux capability for the whole device, and prevent the digestive juice from flowing back into the pancreas or anastomotic stoma from the small intestinal cavity or gastric cavity. In addition, the small intestinal wall or gastric wall will be purse-wrapped at the tail port part of the support sleeve 1 Suture to prevent digestive juice from flowing back into the anastomosis through the gap between the small intestine wall or stomach wall and the support tube. The end of the support outer sleeve 1 away from the anti-reflux component 2 is internally connected with a sup...

Embodiment 2

[0028] Embodiment 2. On the basis of Embodiment 1, the anti-reflux assembly 2 includes a connecting tube 201 connected to the supporting outer sleeve 1, and one end of the connecting tube 201 is connected with an anti-reflux film 202. The opening at the end of the anti-reflux film 202 is shaped like The natural fit can play an anti-reflux ability and prevent digestive juice from flowing back into the pancreas or anastomosis from the small intestine cavity or stomach cavity.

Embodiment 3

[0029] Embodiment 3, on the basis of Embodiment 1, the connecting film 4 is a cylindrical connecting film, one end of the connecting film 4 is fixedly connected to the end of the supporting outer sleeve 1, and the other end of the connecting film 4 is fixedly connected to the supporting inner sleeve 3, The support outer sleeve 1 and the support inner sleeve 3 can be relatively displaced, the support inner sleeve 3 can move towards the tail of the support outer sleeve 1, and the connecting film 4 ensures that the support outer sleeve 1 and the support inner sleeve 3 move in position During the process, keep the support tube device free of leakage. Such an extensible mechanism can ensure the integrity of the support tube without leakage after the anastomotic stoma ruptures, allowing the anastomotic stoma to rupture without pancreatic fistula.

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Abstract

The invention relates to the technical field of medical instruments, and discloses an extendable anti-reflux pancreatic stump anastomosis supporting tube which solves the problems that in the current pancreatic stump anastomosis operation, the risk of cracking cannot be avoided in pancreatic intestine or pancreatic stomach anastomosis, anastomotic fistula is caused, and then pancreatic fistula occurs. The extendable anti-reflux pancreatic stump anastomosis support tube comprises a supporting outer sleeve, one end of the supporting outer sleeve is connected with an anti-reflux assembly, a supporting inner sleeve is connected into the end, away from the anti-reflux assembly, of the supporting outer sleeve, and a connecting film is connected between the supporting inner sleeve and the supporting outer sleeve. When an anastomotic stoma does not crack, the support tube device only plays a role of the anti-reflux support tube; when the anastomotic stoma cracks, the support tube can still maintain the drainage function of a main pancreatic duct-small intestine cavity or gastral cavity, and when edema of peripheral tissue of the anastomotic stoma gradually fades away, the anastomotic stoma gradually heals, and the support tube gradually returns to the unstretched state; and pancreatic fistula is avoided by applying the support tube, and extensibility is achieved.

Description

technical field [0001] The invention belongs to the technical field of medical appliances, in particular to an extendable anti-reflux pancreatic stump anastomotic support tube. Background technique [0002] Pancreatic stump anastomosis after partial pancreatectomy has been a medical problem for nearly a century. In medicine, pancreatic stump anastomosis is most commonly used in pancreatoduodenectomy. The latter is the duodenum, lower bile duct, pancreatic head (including Uncinate process of pancreas) and duodenal ampulla injuries and tumors are the most commonly used surgical methods. [0003] So far, the anastomosis methods for stump pancreas can be divided into two types: first, pancreas-stomach anastomosis; second, pancreas-small intestine anastomosis. There are also two methods of pancreaticojejunostomy: first, bundled anastomosis; second, pancreatic duct-mucosa end-to-side anastomosis of the pancreas-small intestine; and on the basis of the above, many improved methods...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/90A61M25/14
CPCA61F2/90A61M25/0026A61M25/0043
Inventor 王铁功
Owner 王铁功
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