专利内容由知识产权出版社提供
专利名称：Prosthetic valve system and process for
sealing a socket
发明人：Ted J. Greene申请号：US07/749258申请日：19910823公开号：US05201774A公开日：19930413
摘要：A valve housing for a prosthetic socket has a secure leak-free mechanicalinterlock formed between the valve housing and the socket. A valve housing has anopening for receiving a removable relief valve. A plug separate from the relief valve isfirst removably secured in the opening in the valve housing, followed by fastening thevalve housing and the plug to a model defining the shape of the finished socket. Thefastened plug closes off the opening through the valve housing. The exterior wall of thevalve housing has a mechanical interlock, preferably a pair of O-rings extending
circumferentially around the body of the valve housing. A thermoplastic material is drawndown over the plugged valve housing and around the interlock device to cover the valvehousing and the model. In one embodiment, a releasable pressure clamp is applied tothe softened plastic that extends circumferentially around the exterior of the valvehousing. The clamp applies circumferential pressure inwardly to the plastic as it cools toform a secure bond and interlock between the plastic and the O-ring-sealed valvehousing. Any plastic covering the plug can be removed and the plug is removed from thevalve housing, leaving an annular lip or locking flange of the plastic material on anannular end face of the valve housing, which retains the valve against movement from
downward pressure and avoids leakage of air between the valve housing and the plasticsocket.
申请人：UNITED STATES MANUFACTURING COMPANY
代理机构：Christie, Parker & Hale
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