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:
Aug. 10, 2021
Filed:
May. 07, 2015
Dräger Medical Gmbh, Lübeck, DE;
Jonas Börner, Lübeck, DE;
DRÄGERWERK AG & CO. KGAA, Lübeck, DE;
Abstract
A respirator () includes a fresh gas port () for connecting a fresh gas supply, a gas outlet () for connecting a supply line for a patient, an absolute pressure sensor () and a data processor (). The gas outlet and the fresh gas port are fluidically connected via an inhalation branch () that is connected to the absolute pressure sensor. The fresh gas port has an adjusting valve (), to set gas flow from the fresh gas supply to the inhalation branch, and a differential pressure sensor (). The differential pressure sensor determines a differential pressure in the fresh gas port between the inhalation branch and the adjusting valve. The data processor receives and records the absolute pressure measured and the differential pressure to determine a fresh gas flow through the fresh gas port. A method for determining a fresh gas flow is also shown and described.