Corrosion detection method and system for magnesium alloy tube for cardiovascular stent
By constructing a multi-field coupled magnesium alloy corrosion detection system, the accuracy problem of magnesium alloy corrosion detection in existing technologies has been solved, enabling accurate prediction of the corrosion rate of magnesium alloy pipes outside the body and shortening the research and development cycle.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- RIZHAO TIANYI BIOMEDICAL PTE LTD
- Filing Date
- 2026-04-30
- Publication Date
- 2026-07-17
AI Technical Summary
Existing methods for detecting corrosion in magnesium alloys cannot effectively simulate the fluid shear force and radial alternating stress within the cardiovascular system, resulting in significant differences between in vitro test results and the actual degradation rate in vivo. Furthermore, traditional methods ignore the periodic contraction and expansion of blood vessels and are inaccurate in electrochemical data.
By combining fluid mechanics, mechanics, biochemical microenvironment and electrochemical in-situ monitoring, a biomimetic dynamic testing chamber and a multi-field coupling system are designed through the construction of a dynamic evaluation model, including a fluid circulation dynamic module, a radial stress loading module, an in-situ electrochemical monitoring module and a microenvironment control module, to achieve accurate corrosion detection of magnesium alloy pipes.
Precisely capturing the corrosion process of magnesium alloy pipes shortens the medical device development cycle, improves the accuracy and reliability of testing, and overcomes the limitations of testing single dynamic factors.
Smart Images
Figure CN122409475A_ABST