Elastic compressed anastomosis device

Abstract

A surgical anastomosis apparatus is suitable for the end-to-side anastomosis of a minor-caliber hollow viscus and a heavy-caliber hollow viscus, thus effectively avoiding various complicating diseases caused by the prior art. The technical proposal comprises a frame pipe, a fairlead connected with the frame pipe, a puncture needle connected with the fairlead, an elastic circular pressuring sheet and an installation sleeve. The invention makes full use of the certain tension existing in an anastomosis joint and the elasticity of the elastic circular pressuring sheet. The good combination of the tension and the elasticity causes the anastomosis joint to be firmer. The anastomosis is pressurized circularly and continuously; the lamination is correct and the operation is easy. The fairlead can be used for drainage and can be pulled out with the frame pipe after the operation in external drainage. And in internal drainage, the fairlead can be used for discharging out from a body by a larger lumen after the necrotic tissue at the inner edge of the anastomosis joint drops off after being pressurized without foreign matter left, thus preventing the blooding, the leakage, the fistula and the stenosis of the anastomosis joint to a certain extent. In addition, a structure which is similar to papillary and is formed on the wall of the heavy-caliber hollow viscus at the anastomosis joint possibly prevents back streaming.

Description

technical field [0001] The invention relates to an anastomosis instrument for surgical operations, which is especially suitable for the end-to-side anastomosis of small-diameter hollow organs to large-diameter hollow organs, such as the anastomosis between gallbladder intestine, pancreas intestine or ureter-bladder, etc., and is also suitable for Colon-anal anastomosis in anus-preserving surgery for low rectal cancer. Background technique [0002] When encountering hollow organs with widely different calibers in surgical operations that need to be anastomosed, the traditional method is to perform manual end-to-side anastomosis with sutures, which is difficult to operate and requires high technical requirements. If it is less than 0.5cm, the free segment for anastomosis is short, usually only 0.2cm-0.5cm, and the exposure is not sufficient, such as when performing hilar or high bile duct and jejunum anastomosis. The above objective conditions limit the application of traditi...

AI Technical Summary

Problems solved by technology

[0002] When encountering hollow organs with widely different calibers in surgical operations that need to be anastomosed, the traditional method is to perform manual end-to-side anastomosis with sutures, which is difficult to operate and requires high technical requirements. Less than 0.5cm, the free segment for anastomosis is short, usually only 0.2cm-0.5cm, and the exposure is not sufficient, such as when performing hilar or high bile duct and jejunum anastomosis

[0003] Publication No. "CN1792336A" patent provides a stent that utilizes magnetic attraction to complete seamless anastomosis of the biliary tract, but when the small-caliber lumen is too thin, it is often less than 0.5cm, and the free segment for anastomosis is short, often only 0.2cm -0.5cm, and when there is a certain tension on both sides of the anastomosis, the material, cost and whether it can provide enough suction for such a small stent limited by its volume are unconvincing

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