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Nickel-titanium alloy stent for treating megacolon

A nickel-titanium alloy and Hirschsprung technology, applied in stents, medical science, prostheses, etc., can solve problems such as physical injuries in children, and achieve the effects of promoting defecation, eliminating abdominal distension, and relieving spasm and stenosis

Active Publication Date: 2020-06-05
李功俊
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Surgical resection of the diseased bowel has always been the only effective treatment, but surgical treatment will cause damage to the child's body and various complications

Method used

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  • Nickel-titanium alloy stent for treating megacolon
  • Nickel-titanium alloy stent for treating megacolon

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Such as figure 1 As shown, the nickel-titanium alloy stent used for the treatment of Hirschsprung’s disease is integrally bent into a nickel-titanium alloy that is longitudinally helical spring-like and transversely wavy. The stent includes a proximal expansion section 1 and a distal rectal section 2. The diameter of the distal dilated segment 1 is 35 mm, and the diameter of the distal rectal segment 2 is 25 mm.

[0022] The bracket will be plastically deformed at 20-40°C.

[0023] The length of the stent is consistent with the length of the pathological bowel according to the imaging diagnosis, and the length of the stent in this embodiment is 150 mm.

[0024] When in use, the pre-made stent was placed into the spasm segment of the colon through a colonoscope, and the end of the distal rectal segment 2 was sutured and fixed at 0.5 cm from the anal dentate line.

[0025] At present, there are a large number of clinical cases in which colorectal cancer has been success...

Embodiment 2

[0038] A nickel-titanium alloy stent for the treatment of Hirschsprung’s disease. The stent is bent into a nickel-titanium alloy that is longitudinally helical spring-like and transversely wavy. The stent includes a proximal expansion section 1 and a distal rectal section 2. The proximal expansion section 1 has a diameter of 40 mm and the distal rectal segment 2 has a diameter of 25 mm.

[0039] The bracket will be plastically deformed at 20-40°C.

[0040] The length of the stent is consistent with the length of the pathological bowel according to the imaging diagnosis, and the length of the stent in this embodiment is 100 mm.

[0041] When in use, the pre-made stent was placed into the spasm segment of the colon through a colonoscope, and the end of the distal rectal segment 2 was sutured and fixed at 1.0 cm from the anal dentate line.

Embodiment 3

[0043] A nickel-titanium alloy stent for the treatment of Hirschsprung’s disease. The stent is bent into a nickel-titanium alloy that is longitudinally helical spring-like and transversely wavy. The stent includes a proximal expansion section 1 and a distal rectal section 2. The proximal expansion section 1 has a diameter of 35 mm and the distal rectal segment 2 has a diameter of 22 mm.

[0044] The bracket will be plastically deformed at 20-40°C.

[0045] The length of the stent is consistent with the length of the pathological bowel according to the imaging diagnosis, and the length of the stent in this embodiment is 140mm.

[0046] When in use, the pre-made stent was placed into the spasm segment of the colon through a colonoscope, and the end of the distal rectal segment 2 was sutured and fixed at 0.8 cm from the anal dentate line.

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Abstract

The invention belongs to the technical field of medical instrument structures, and particularly discloses a nickel-titanium alloy stent for treating megacolon. The stent is integrally bent into a longitudinal rainbow ring structure in a spiral spring shape or a ring shape from a transverse nickel-titanium alloy in a wave shape, the stent comprises a near-end expansion section and a far-end rectumend, and the diameter of the near-end expansion section is 10-15 mm larger than that of the far-end rectum end. The invention provides the nickel-titanium alloy stent for treating megacolon, the stentis placed at a lesion intestinal segment to expand an intestinal canal, so that intestinal contents smoothly pass through the narrow intestinal canal to be discharged out of the body, and the purposeof non-surgical treatment of the megacolon is achieved. The nickel-titanium alloy stent is used for treating the megacolon, surgical excision of the lesion intestinal canal is not needed, and variousinjuries and complications caused by surgeries are avoided.

Description

technical field [0001] The invention belongs to the technical field of medical device structures, in particular to a nickel-titanium alloy bracket for treating Hirschsprung's disease. Background technique [0002] Hirschsprung's disease in children, also known as Hirschsprung's disease without ganglion cells, is a common anorectal disease in children and a unique congenital disease in children. Its incidence rate is as high as 1 / 2000-1 / 5000. The core problem is stubborn Sexual constipation. Hirschsprung's disease is characterized by the absence of colonic ganglion cells in the muscle and submucosa of the diseased bowel. Due to the absence of nerve cells, nerve impulses cannot be regulated, resulting in excessive contraction of the longitudinal and circular muscles of the intestinal wall, resulting in spasm, loss of peristaltic function, and disappearance of rectal and anal relaxation reflexes. It is a common cause of intestinal obstruction in newborns. The disease can be t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/86
CPCA61F2/86A61F2210/0014A61F2310/00023A61F2310/00071
Inventor 李功俊
Owner 李功俊
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