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Biocompatible Self-Lubricating Polymer Compositions and Their Use in Medical and Surgical Devices
专利权人:
发明人:
Xiaoping Guo,Richard E. Stehr
申请号:
US15594165
公开号:
US20170312396A1
申请日:
2017.05.12
申请国别(地区):
US
年份:
2017
代理人:
摘要:
The invention comprises self-lubricating polymer compositions that are especially useful in medical devices and valves and gaskets of medical devices. In a preferred embodiment, the polymer compositions comprise a thermosetting or thermoplastic silicone elastomer in combination with a lubricity enhancing polyfluoropolyether fluid or hydrocarbon-based synthetic oil. In other preferred embodiments, the polymer compositions contain only biocompatible components. The improved anti-friction properties of the self-lubricating polymers can be demonstrated over a course of insertion and withdrawal cycles, where conventional polymers have changing and mostly increasing force required for each insertion and withdrawal, while the polymer compositions of the invention remain stable.
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