Biodegradable rapid blood vessel anastomosis device

Abstract

The invention provides a biodegradable rapid blood vessel anastomosis device which is characterized in that a first sleeve is arranged outside a first blood vessel in a sleeving mode, and a first thread is arranged on the outer surface of the first sleeve; a second sleeve is arranged outside the second blood vessel in a sleeving manner, and a second thread is arranged on the outer surface of the second sleeve; internal threads matched with the first threads and the second threads are arranged on the inner surface of the connecting outer sleeve and used for driving the first sleeve and the second sleeve to move oppositely, and butt joint and anastomosis of the first blood vessel and the second blood vessel are achieved; the first thread and the second thread are opposite in rotation direction; the first sleeve, the second sleeve and the connecting outer sleeve are all made of degradable materials. By arranging the first sleeve, the second sleeve and the connecting outer sleeve and matching with the threads with the opposite screwing directions, butt joint of two blood vessels is achieved, the two blood vessels are tightly attached together, rapid anastomosis is achieved, and by arranging the controllable degradable biocompatible material which can be easily absorbed by the human body, tissue healing and regrowth at the vascular anastomosis position are promoted.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a biodegradable rapid anastomotic device for blood vessels. Background technique [0002] Vascular anastomosis is one of the most common basic operations in surgery. Vascular anastomosis is required in many operations or organ transplants involving vascular disease or trauma. In order to improve the speed and quality of vascular anastomosis, various vascular anastomosis techniques and auxiliary devices have been researched and developed for a long time, including adhesive anastomosis techniques, laser anastomosis techniques, high-frequency electrocoagulation anastomosis techniques, and mechanical anastomosis techniques and devices. Among them, mechanical anastomosis of blood vessels is a blood vessel connection method that completely replaces or partially replaces sutures with special mechanical devices. At present, sleeve method and needle loop method are commonly used....

AI Technical Summary

Problems solved by technology

However, due to the presence of auxiliary connecting devices at the anastomosis, the normal contraction and relaxation of the blood vessels are affected, and the free growth of the blood vessels is restricted.

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