Anaesthetic vaporizer having a pressure sensitive diaphragm conn

Details Anaesthetic vaporizer having a pressure sensitive diaphragm conn Anaesthetic vaporizer having a pressure sensitive diaphragm conn

1994-01-27

1995-02-21

Asher, Kimberly L.

Surgery

Respiratory method or device

Means for mixing treating agent with respiratory gas

12820312, 12820326, 12820425, 12820524, A61M 1610, F16K 1100, G05D 1102, F23D 1100

Patent

active

053906659

ABSTRACT:
An anaesthetic vaporizer includes a passageway 10, 30 for directing carrier gas through a fixed laminar restrictor 32 to a vaporizing chamber 26. Liquid anaesthetic agent is injected into the vaporizing chamber 26 from a constant level tank 12 the output of which is controlled by a laminar control valve 28. Liquid anaesthetic agent flow is determined by the pressure of carrier gas in the passageway 10, 30 and the setting of the liquid laminar control valve 28.

REFERENCES:
patent: 1756053 (1930-04-01), Colton
patent: 3392753 (1968-07-01), Kleinmann
patent: 3841560 (1974-10-01), Sielaff
patent: 4059657 (1977-11-01), Hay
patent: 4129621 (1978-12-01), Jones et al.
patent: 4195044 (1980-03-01), Miller
patent: 4722334 (1988-02-01), Blackmer et al.
patent: 4881541 (1989-11-01), Eger et al.
patent: 4913140 (1990-04-01), Orec et al.
patent: 4942874 (1990-07-01), Terada et al.

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