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.

Date of Patent:
Aug. 16, 1988

Filed:

Dec. 09, 1986
Applicant:
Inventors:

Ralph H Lewis, Lakeport, CA (US);

Barnum B Lambert, San Jose, CA (US);

Assignee:

Pioneer Medical Systems, Inc., San Francisco, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
422120 ; 55387 ; 55DI / ; 55DI / ; 12820512 ; 12820428 ; 12820517 ; 422122 ;
Abstract

A disposable rebreathing canister is disclosed for administering oxygen and anesthesia to patients. The canister essentially comprises a housing for a scrubber, including a manifold plate and a rigid container, and a flexible liner disposed within the rigid container. The liner forms an imperforate barrier between the interior of the rigid container and the manifold plate. A scrubber disposed between the manifold plate and liner chemically reacts with gases conducted to it through one of a pair of coaxial passages formed in the manifold plate. Reacted gases are then moved through a tortuous passage either back to the other one of the coaxial passages or removed through an exhaust port. The interior of the rigid container connects with a source of pressure that allows the flexible liner to be collapsed, thus forcing treated gases, fresh oxygen and anesthesia into the lungs of the patient.


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