Material Analysis
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PSU Hemodialysis Membrane Application
Problem Phenomenon
【Problem Phenomenon】Membrane material selection for hemodialyzers, with dual requirements of biocompatibility and sterilization
Cause Analysis
PSU and PES are mainstream materials for hemodialysis hollow fiber membranes, resistant to multiple sterilization methods including ethylene oxide, steam, gamma, and electron beam; the dialyzer housing uses biocompatible plastics such as PC
Solution
Select PSU/PES for dialysis membranes according to biocompatibility and sterilization method; control pore size distribution in membrane fiber preparation; use medical-grade materials for assembly and potting; after adjustment, continuously sample to verify the effect, confirm stability before resuming mass production
Key Takeaway
PSU/PES are dual mainstreams for dialysis membranes, and multi-sterilization tolerance is the entry threshold; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence
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