一种血管内生物可吸收纯镁支架的制备方法
By processing pure magnesium material through a combination of equal channel angle pressing and high-pressure torsional extrusion, and then performing laser engraving and plasma chemical vapor deposition, a bioresorbable pure magnesium stent suitable for intravascular use was prepared. This solved the problem of insufficient physical properties of pure magnesium material and enabled the application of high-performance stents.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- JIANGSU XIANGLAN MEDICAL TECH CO LTD
- Filing Date
- 2024-09-14
- Publication Date
- 2026-07-17
AI Technical Summary
Currently, there are no high-performance pure magnesium materials available for intravascular absorbable stents, and pure magnesium materials are prone to softening during deformation, resulting in insufficient physical properties that cannot meet clinical needs.
Pure magnesium material was processed using a severe plastic deformation method combining equal channel angle pressing and high-pressure torsional extrusion to prepare intravascular bioresorbable pure magnesium stents. Its performance was improved by laser engraving and plasma chemical vapor deposition TiO2 surface treatment.
The prepared pure magnesium stent has excellent physical and mechanical properties, good biocompatibility and corrosion resistance, meets the performance indicators of clinical absorbable stents, and is suitable for stent implantation in the fields of cardiovascular and cerebrovascular diseases and hollow organs.
Smart Images
Figure CN119141153B_ABST