Vacuum bottle with pressure indicator
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United States of America Patent
Stats
-
Nov 17, 1987
Grant Date -
N/A
app pub date -
Jun 21, 1982
filing date -
Jun 24, 1981
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
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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