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US5885209A Endoscopic working channel and method of making same 失效
内窥镜工作通道及其制作方法

Endoscopic working channel and method of making same
摘要:
A polytetrafluoroethylene (PTFE) or expanded polytetrafluoroethylene (ePTFE) flexible and bendable working channel section which is circumferentially reinforced against kinking and which is adapted to be insertable, in-line, with the rigid section of the endoscopic working channel.
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