发明授权
- 专利标题： Vacuum bottle with pressure indicator
- 专利标题（中）： 带压力指示器的真空瓶
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申请号： US390412申请日： 1982-06-21
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公开(公告)号： US4706830A公开(公告)日： 1987-11-17
- 发明人: Mark V. Wareing
- 申请人： Mark V. Wareing
- 申请人地址： NJ New Brunswick
- 专利权人： Johnson & Johnson Products, Inc.
- 当前专利权人： Johnson & Johnson Products, Inc.
- 当前专利权人地址： NJ New Brunswick
- 优先权： GBX8119435 19810624
- 主分类号： A61M1/00
- IPC分类号： A61M1/00 ; B65D47/00 ; B65D51/00
摘要：
A vacuum drainage bottle includes a chamber for receiving fluids from a patient and a pressure indicator (9,21) for measuring the pressure in the chamber. Prior to use, the pressure indicator is isolated from the chamber by means of a breakable seal. The seal may be in the form of a recessed membrane (43), which may be ruptured by depressing the pressure indicator, causing a ball (45) to bear against the membrane (43).
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