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:
Dec. 30, 1997
Filed:
Aug. 05, 1996
Robert Q Tham, Dane County, WI (US);
Todd Keitel, Dane County, WI (US);
Ohmeda Inc., Liberty Corner, NJ (US);
Abstract
An anesthesia system is disclosed that prolongs the lifetime of an oxygen fuel cell be used to detect the concentration of oxygen in that anesthesia system. The system determines and provides a signal indicating the end of any particular operation using the anesthesia system and that signal is used to cut off all gas supplies with the exception of the fresh air supply which is then allowed to pass through the system to wash the various lines, including the conduit having the oxygen gas fuel cell thus preventing the typically high concentrations of oxygen used in a operation from remaining in the oxygen fuel cell for an unnecessary period of time. Furthermore, the gases in the anesthesia machine are eliminated along with their deleterious effects and replaced by fresh air from the normal supply of fresh air to the system.