Degradable zinc alloy peritoneoscope hemostatic clip and preparing method thereof

Abstract

Disclosed are a degradable zinc alloy peritoneoscope hemostatic clip and a preparing method thereof. The degradable zinc alloy peritoneoscope hemostatic clip is made of a zinc alloy. As for the components of the zinc alloy, an alloy element Mg is added into a pure zinc matrix. The degradable zinc alloy peritoneoscope hemostatic clip has the advantages that by introducing an arc structure and additionally arranging a lock catch, anti-slide insections and a limiting protrusion, stress concentration after the metal hemostatic clip is closed is effectively improved, meanwhile the clamping propertyof the hemostatic clip is effectively improved, and the risk of sliding off of the hemostatic clip after an operation is reduced; zinc is a necessary element of the human body, the good biocompatibility and absorbability are achieved by using the hemostatic clip prepared through the zinc alloy, and meanwhile, the service time of the hemostatic clip is increased obviously through the appropriate degradation in vivo characteristic of the hemostatic clip; the hemostatic clip is simple and easy in structure and simple in preparation technology, and the preparation cost is reduced effectively; andthe designed and prepared hemostatic clip fully meets the clinical use requirement.

Description

technical field [0001] The invention belongs to the field of biomedical materials, and relates to a degradable zinc alloy laparoscopic hemostatic clip and a preparation method thereof. Background technique [0002] Laparoscopic surgery is performed outside the body with the help of surgical instruments and display imaging. Due to limited operating space, hemostatic clips are usually used to close blood vessels to stop bleeding. Clinically commonly used hemostatic clips are non-degradable metal titanium clips and degradable polymer clips. Titanium clips can be used to close blood vessels of various sizes, but titanium and titanium alloys have good corrosion resistance and an X-ray absorption coefficient much higher than that of human tissues, and keeping them in the human body will distort the diagnosis of regional tissues and induce relevant clinical allergic reactions . Although biodegradable polymer clips can be degraded, their strength is lower than that of metal clips...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a degradable zinc alloy laparoscopic hemostatic clip and its preparation method in view of the above-mentioned technical analysis and existing problems. The hemostatic clip can effectively solve the problem that the existing metal hemostatic clip is easy to slip off. The clamp has good clamping properties, and at the same time greatly prolongs the effective service time of the hemostatic clamp, avoiding its premature failure and failure, and has long-term hemostasis safety, effectively reducing the postoperative risk

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