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Removable covered rectal stent for treating low rectal fistula

A covered stent and rectal fistula technology, applied in the field of medical devices, can solve problems such as displacement and perianal irritation, and achieve the effects of preventing displacement, good healing, and convenient removal

Inactive Publication Date: 2015-10-28
王辉 +4
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Drawing on the good effect of covered stents in the treatment of esophageal fistula, researchers began to try to use esophageal covered stents in the treatment of rectal fistula. Although satisfactory results were achieved in promoting fistula healing, perianal irritation, pain, and displacement issues still need to be further resolved

Method used

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  • Removable covered rectal stent for treating low rectal fistula

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Embodiment Construction

[0014] The technical solutions of the present invention will be further described in detail below in conjunction with specific embodiments, but this does not constitute any limitation to the present invention.

[0015] refer to figure 1 As shown, a removable covered rectal stent for treating low rectal fistula of the present invention includes a covered stent 1, wherein one end of the covered stent 1 is an umbrella-shaped end 2, and the covered stent The other end of 1 is an inverted conical end 3, and the side wall of the umbrella-shaped end 2 is provided with at least two non-coated holes 5, which can promote fistula opening compared with the swollen cylinders at both ends of the traditional intestinal stent. Better healing, less perianal irritation and easier removal. The side wall of the umbrella-shaped end 2 is provided with at least two non-coated holes 5 , through which the mucosal growth grows into the non-coated holes 5 to enhance the fixation of the stent and preven...

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Abstract

The invention discloses a removable covered rectal stent for treating low rectal fistula, which comprises a covered stent, wherein one end of the covered stent is umbrella-shaped, the other end of the covered stent is reverse cone-shaped, and the side wall at the umbrella-shaped end is provided with at least two uncovered holes. When the rectal stent of the invention is used for treating low rectal fistula, orificium fistulae healing is promoted, perianal simulation is small, the stent has good stability, and removing is convenient.

Description

technical field [0001] The invention relates to the field of medical instruments, and more specifically relates to a removable covered rectal stent for treating low rectal fistula. Background technique [0002] At present, self-expandable metal stents are widely used in the treatment of gastrointestinal obstruction. The principle of action is that after the self-expandable memory metal stent is placed in the stenosis, the stenosis will be opened to relieve the stenosis, mainly including the esophagus, duodenum, colon, and biliary tract. Other stents, covered or uncoated, among them, the uncoated stent is likely to cause hyperplasia of the digestive tract mucosa within a short time after placement, which can prevent the displacement of the stent, but at the same time it also faces the risk of regeneration caused by mucosal and muscular layer hyperplasia. Stenosis and the inability to remove the stent; while the covered stent can prevent the gastrointestinal mucosal hyperplasi...

Claims

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Application Information

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IPC IPC(8): A61F2/04
Inventor 王辉汪建平兰平王磊李初俊黄榕康杨科力胡民辉叶新梅赵洁赵日升
Owner 王辉