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CN102014982B 具有调节压力能力的手动致动减压治疗泵 有权 转让

具有调节压力能力的手动致动减压治疗泵
摘要：
一种手动致动减压泵，包括：第一套筒，其具有实质上圆柱形的壁和封闭端；活塞，其被可移动地布置在第一套筒内，充注室被界定在第一套筒的封闭端和活塞之间；活塞弹簧，其可操作地与活塞相关联，以在允许充注室的容积增加的方向上偏置活塞；密封物，其被布置在第一套筒内，调节室被界定在密封物和活塞之间；调节物通路，其提供充注室和调节室之间的流体连通；第二套筒，其可操作地与活塞相关联，以在减压泵被使用者手动致动时把活塞朝向压缩位置移动；以及阀体，其可操作地与调节物通路相关联，以选择性地允许或防止充注室和调节室之间的流体连通。
摘要（英）：

A reduced pressure treatment system (100) comprising: a manifold (104) adapted to be positioned at a tissue site; a regulated chamber in fluid communication with the tissue site to deliver a desired therapy pressure to the tissue site; a charging chamber adapted to store a charging pressure that is less than the desired therapy pressure; a passage providing fluid communication between the regulated chamber and the charging chamber; a valve body operably associated with the passage to substantially reduce fluid communication through the passage when a pressure in the regulated chamber is less than or equal to the desired therapy pressure and to allow fluid communication through the passage when the pressure in the regulated chamber exceeds the desired therapy pressure.

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