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. 26, 1989
Filed:
Nov. 17, 1987
John C Taube, Philadelphia, PA (US);
Phospho Energetics, Inc., Philadelphia, PA (US);
Abstract
An adaptive controller for delivering fractional inspired oxygen to a patient. The controller utilizes a pulse oximeter connected by an optical sensor to the patient for measuring the patient's blood hemoglobin saturation and pulse rate. Signals from the oximeter are used by a calculator for determining the fractional inspired oxygen level to be delivered to the patient. The calculated percentage of oxygen is provided to the patient so that the gas taken in by the patient automatically causes the blood in the patient to reach a predetermined hemoglobin saturation level which adapts to the patient's requirements. The calculator is programmed to determine when there is an excess deviation of the patient's pulse rate. When an excess deviation is detected, the fractional inspired oxygen level to the patient is fixed until the excess deviation of the pulse rate has been terminated. A depressed respiration level can also be detected which causes a preset higher percentage of oxygen to be supplied to the patient until the depressed respiration of the patient has been terminated.