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:
Jun. 08, 1999
Filed:
Dec. 06, 1996
Applicant:
Inventors:
John J O'Mahony, Galway, IE;
Floyd R Farnham, III, Encinitas, CA (US);
Assignee:
Puritan-Bennett Corporation, Overland Park, KS (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61M / ;
U.S. Cl.
CPC ...
12820524 ; 12820421 ; 12820418 ;
Abstract
The lung ventilator safety valve circuit includes a normally open, pulse width modulated solenoid safety valve connected to a patient airway of a ventilator system. A pressure sensor monitors pressure in the patient airway, and a control unit maintains the safety valve closed when the pressure is not excessive. The safety valve is opened when the sensed pressure equals or exceeds a maximum airway pressure threshold that can be set by an operator, or in the event of a power failure.