A surgical instrument for performing controlled myotomies

A technique for surgical instruments and myotomy, which is applied in the direction of heating surgical instruments, endoscopic cutting instruments, parts of surgical instruments, etc., and can solve the problems of complex control of myotomy

Inactive Publication Date: 2011-04-27
ETHICON ENDO SURGERY INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the case of an open surgical approach, the internal sphincter deforms and moves relative to the anal fissure during the procedure, complicating the control of myotomy

Method used

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  • A surgical instrument for performing controlled myotomies
  • A surgical instrument for performing controlled myotomies
  • A surgical instrument for performing controlled myotomies

Examples

Experimental program
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Effect test

Embodiment Construction

[0024] Referring to the drawings, Figures 1 and 2 depict a surgical instrument according to a first embodiment of the present invention. The surgical instrument 1 can be used to perform a controlled myotomy, for example for performing an internal anal sphincterotomy for the treatment of chronic anal fissures.

[0025] In the following description, the terms "distal" and "proximal" refer to the physician's point of view, if not stated otherwise.

[0026] The instrument 1 comprises a generally elongated body having a proximal handle portion 2 and an elongated insertion shaft 3 extending distally from the handle portion 2 . The distal cutting tip 4 is provided on the distal end of the insertion shaft 3 and is capable of cutting tissue near the distal side of the insertion shaft 3 . In addition, the transverse cutting member 5 is disposed near the distal end 28 of the insertion shaft 3 and is capable of cutting tissue near the transverse direction of the insertion shaft 3 . The ...

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PUM

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Abstract

A surgical instrument (1) for performing controlled myotomies, particularly for performing internal anal sphincterotomies, comprises a proximal handle portion (2), an elongate insertion shaft (3) connected with the handle portion (2) and extending distally therefrom, a distal incision tip (4) arranged at a distal end of the insertion shaft (3) and adapted to incise tissue distally to the insertion shaft (3), a lateral incision member (5) arranged at the insertion shaft (3) and adapted to incise tissue laterally to the insertion shaft (3), wherein the lateral incision member (4) is movable from a rest position, in which it is retracted towards or inside the insertion shaft (3) and an operational position in which it protrudes laterally from the insertion shaft (3).

Description

technical field [0001] The present invention relates generally to surgical cutting or dissection instruments, and in particular to surgical instruments for performing controlled myotomy, such as internal anal sphincterotomy on patients suffering from anal fissures. Background technique [0002] Anal fissures are one of the most common rectal disorders present in wounds or ulcers that usually occur on the front or back of the anus, for example due to brief bouts of constipation or diarrhea. Symptoms of an anal fissure often include painful bowel movements, pain after a bowel movement, and light bleeding. Common treatments include administering medication to the patient, using stool softeners, and lubricating the anal canal with suppositories. While medical treatment will heal most acute anal fissures and a small proportion of chronic anal fissures, most more chronic anal fissures require surgical treatment. The current surgical treatment of choice for chronic anal fissures ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B17/32A61B19/00A61B17/00A61B18/14A61B18/00
CPCA61B17/320016A61B2017/00367A61B2018/00946A61B2018/1422A61B2018/1407A61B2017/0042A61B18/1477A61B2018/1425A61B17/320036A61B2018/1475A61B2019/462A61B18/1402A61B2017/00455A61B2018/00922A61B2018/143A61B2090/062
Inventor A·朗戈M·达尔坎吉罗A·帕斯托利F·比洛蒂B·J·汤普森
Owner ETHICON ENDO SURGERY INC
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