Coronary interventional therapy is currently one of the main methods to deal with cardiovascular disease. In this treatment process, the service effect of the implanted stent in the human body largely determines the treatment effect of the disease.
At present, the most commonly used stents are mainly stainless steel stents and cobalt-chromium alloy stents, which will permanently exist after implantation in the human body, and the immune rejection caused by them needs to be relieved by long-term medication. But if the implanted stent degrades naturally after completing the treatment "mission", it will be a very beautiful thing.
SHHC Bioalloy Material Technology Corporation is committed to the R&D and production of controlled degradation of magnesium alloys (tubes, bars, plates and wires).
The company has a national-level light alloy precision forming engineering research center and a pilot plant.
The related achievements of the R&D team have been granted 58 invention patents and 36 utility model patents.
From the perspective of medical needs, the retention time of the vascular stent in the human body only needs to be greater than 6 months to complete the treatment task. As a result, more and more researches on degradable stents. SHHC also made it a key research project and handed this project to Wei Tingfa.
Currently, the most researched degradable stents are polylactic acid stents and magnesium alloy stents. Magnesium alloy stents are considered to be the most promising next-generation stent material with shorter degradation time, better supporting force and biocompatibility.
The vascular stent is a high-risk medical device, and the performance of the fine tube directly determines the performance of the stent. However, due to the complicated process of microtube processing and many influencing factors, the processing is extremely difficult. A German company holds the key technology for the preparation of magnesium alloy micro-tubes and is basically in a market monopoly.
After more than 5 years of technical research, the SHHC R&D team has finally successfully prepared magnesium alloy micro tubes with a diameter of only 2-4 mm and a tube wall thickness of only 120-200 microns. The performance is better than foreign products, and it has completely broken the foreign companies. Technology monopoly. The tube made of magnesium alloy microtubes developed by SHHC has been successfully delivered to many large medical device companies at home and abroad.