The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 09, 1989
Filed:
Mar. 02, 1988
Applicant:
Inventors:
Roger Champain, Les Loges en Josas, FR;
Gilbert Theurant, Vitry-sur-Seine, FR;
Assignee:
L'Air Liquide, Paris, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61M / ;
U.S. Cl.
CPC ...
12820421 ; 12820428 ; 12820426 ; 12820429 ;
Abstract
The invention relates to the supply of superoxygenated air to a patient during a part of the inspiratory phase. An electrically controlled supply valve is opened as soon as the sensor of a detector receives a depression signal due to a start of inspiration. This produces a voltage which is compared with a reference voltage corresponding to the atmospheric pressure previously stored in a memory. The duration of the injection is counted and is proportional to the duration of the non-injection which is dependent on the duration of the expiratory phase.