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:
Feb. 14, 1995
Filed:
Sep. 25, 1992
John C Taube, Raleigh, NC (US);
Other;
Abstract
An automatic controller utilizes a pulse oximeter signal to regulate the oxygen mixture output, peak expiratory end pressure, and inspiratory ventilation time from a positive pressure respiratory assist ventilator. The pulse oximeter senses a patient's hemoglobin saturation and pulse rate by an optical sensor to develop a signal which is used by calculator to determine the patient's corresponding partial pressure of arterial blood. The calculated partial pressure of arterial blood is then used by the calculator in determining the level of inspired oxygen, peak expiratory end pressure, and inspiratory ventilation time provided to the patient. The calculator generates a signal to control the level of inspired oxygen, expiratory end pressure, and inspiratory ventilation time output from a positive pressure respiratory assist ventilator. The level of inspired oxygen, peak expiratory end pressure, and inspiratory ventilation time provided from the ventilator to the patient is varied to maintain a desired predetermined partial pressure of arterial oxygen.