Medical aspiration system vacuum level indicator

Details Medical aspiration system vacuum level indicator Medical aspiration system vacuum level indicator

1974-07-03

1976-02-24

Queisser, Richard C.

Surgery

Respiratory method or device

Ozone or ion generation

116114C, A61M 100, G01L 2100

Patent

active

039398358

ABSTRACT:
A medical aspiration system vacuum level indicator. The system preferably to be used for vacuum abortions and diagnostics. It is designed for operation at high vacuum and includes an aspiration collection bottle. The vacuum level indicator comprises an expandable non-porous membrane charged with a pre-determined quantity of gas. The membrane is positioned inside the collection bottle, and provides a visual indication of the vacuum level in the bottle.

REFERENCES:
patent: 2040798 (1936-05-01), Schoonmaker
patent: 2295528 (1942-09-01), Cutter et al.
patent: 3143111 (1964-08-01), Green
patent: 3173372 (1965-03-01), Baldwin

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