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. 05, 2009
Filed:
May. 24, 2005
Boaz Misholi, New York, NY (US);
Boaz Misholi, New York, NY (US);
General Electric Company, Schenectady, NY (US);
Abstract
A method and apparatus for operating a ventilator to control the fraction of pressure inspired oxygen (FiO) to a patient that includes: providing a ventilator controller that includes a software algorithm, a pulse oximeter and a FiOflow rate controller; measuring the pulse oximetry of the patient and computing an average pulse oximetry value over a time period; selecting a first, second and third pulse oximetry levels as set points for the ventilator controller; selecting an update time interval; decreasing the FiOflow rate by a first incremental amount when the average pulse oximetry value is greater than the first level; increasing the FiOflow rate by a second incremental amount when the average pulse oximetry value is less than the second level; increasing the FiOflow rate to the maximum and initiating an alarm condition when the average pulse oximetry value is less than the third level.