Title: Anaesthetist's respiration apparatus

Abstract: Respiration apparatus, for anaesthetist's use, to minimize gas consumption by providing for a patient to rebreath deadspace gas (i.e. the gas previously present in the trachea, mouth and bronchial tree and which has not previously undergone change) comprises a housing enclosing an expansible container to which fresh gas is supplied by a fresh gas supply duct and also to the housing outside the container by way of a non-return valve which permits flow only from the respiration tube into the housing, adjustment means being provided to permit adjustment of the extent by which the container may expand.

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Inventors: Carden, Edward (Stockport, EN)

Application Number: 495658
Filing Date: 1974-08-08
Publication_date: 1976-08-10
Assignee: Dupaco Incorporated (San Marcos, CA)
Primary Class(es): 128/205.14
Other Classes:
US Patent Ref:

3046979	Jul, 1962	Andreasen	128/202.
3256876	Jun, 1966	Elam	128/188.
3537450	Nov, 1970	Fox	128/145.
3556097	Jan, 1971	Wallace	128/188.
3814091	Jun, 1974	Henkin	128/188.
3901230	Aug, 1975	Henkin	128/188.

Other Refs: 1,193,522

Jun, 1970	UK

Primary Examiner: Michell, Robert W.
Assistant Examiner: Recla, Henry J.
Attorney: Christie, Parker & Hale