Processing Machinery
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PCL cardiovascular stent
Problem Phenomenon
PCL cardiovascular stent mechanics and blood compatibility, long-term implantation challenges.
Cause Analysis
PCL cardiovascular stent mechanical strength; blood compatibility; degradation product influence; endothelialization; long-term safety.；During on-site troubleshooting, verify item by item according to this mechanism, and avoid blindly adjusting the machine based solely on experience
Solution
①Mechanical optimization; ②Blood compatibility modification; ③Degradation assessment; ④Endothelialization promotion; ⑤Long-term safety testing.；After adjustment, take continuous samples to verify the effect, and resume mass production only after confirming stability
Key Takeaway
PCL cardiovascular application is a high-risk field; comprehensive verification is the prerequisite; long-term safety is the core.；After confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence
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