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:
Jul. 18, 2017
Filed:
May. 10, 2012
Matthew John Callaghan, Stanford, CA (US);
William Bishop, Palo Alto, CA (US);
Lawrence Edward Miller, Mountain View, CA (US);
Francois Brahic, Mountain View, CA (US);
Matthew John Callaghan, Stanford, CA (US);
William Bishop, Palo Alto, CA (US);
Lawrence Edward Miller, Mountain View, CA (US);
Peter Frykman, Palo Alto, CA (US);
Francois Brahic, Mountain View, CA (US);
The Board of Trustees of the Leland Stanford, Jr. University, Stanford, CA (US);
Abstract
A ventilator includes a compressor, a storage vessel, a valve assembly communicating with the compressor, the storage vessel, and an inhalation line. A controller directs the valve assembly between a storage configuration where ventilation gas is delivered from the compressor into the storage vessel, and a delivery configuration where ventilation gas is delivered from the storage vessel to the inhalation line. The controller is coupled to a pressure sensor for detecting a first pressure within the storage vessel when the valve assembly is directed to the delivery configuration, and detecting subsequent pressure while ventilation gas is delivered from the storage vessel to the inhalation line, the controller determining the volume of ventilation gas delivered to the patient based at least in part on the difference between the first pressure and the subsequent pressure.