Anaesthetic vaporizer with expandable/contractable reservoir for

Details Anaesthetic vaporizer with expandable/contractable reservoir for Anaesthetic vaporizer with expandable/contractable reservoir for

1996-01-16

1997-07-08

Asher, Kimberly L.

Surgery

Respiratory method or device

Means for mixing treating agent with respiratory gas

12820312, 12820327, 12820316, A61M 1600, F23D 1100, F23D 1400, H05B 300

Patent

active

056450524

ABSTRACT:
An anaesthetic vaporizer for supplying an anaesthetic to a patient and having an inlet for receiving carrier gas and an outlet for delivering carrier gas laden with the anaesthetic to the patient. The vaporizer includes a pump having an expandable body, preferably of a metal, and which expands to draw in the liquid anaesthetic from a reservoir through a valving mechanism and which collapses to meter a precise amount of that liquid anaesthetic into a chamber where it is vaporized for introduction into the carrier gas as it passes between the inlet and the outlet.

REFERENCES:
patent: 3046979 (1962-07-01), Andreasen
patent: 3789837 (1974-02-01), Philips et al.
patent: 4010748 (1977-03-01), Dobritz
patent: 4477395 (1984-10-01), Albarda
patent: 4770168 (1988-09-01), Rusz et al.
patent: 5243973 (1993-09-01), Falb et al.
patent: 5277175 (1994-01-01), Riggs et al.

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