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. 07, 2019
Filed:
Nov. 03, 2015
Drägerwerk Ag & Co. Kgaa, Lübeck, DE;
Ralf Heesch, Lübeck, DE;
Till Rahlf, Stockelsdorf, DE;
Drägerwerk AG & Co. KGaA, Lübeck, DE;
Abstract
The function of a respiration system, with a patient port () with connected inspiration branch () and expiration branch, is checked. A rebreathing line () connects the inspiration branch to the expiration branch. A reservoir () is connected to a reservoir port () in the rebreathing line. An actuatable control valve () is provided in the rebreathing line between the expiration branch and the reservoir port. A pressure sensor () is connected to the rebreathing line. A control unit () is connected to the control valve and to pressure sensor. The process includes closing the control valve for a preset inspiration time and opening it for a preset expiration time. The value sent by the pressure sensor is detected with the control valve opened during the expiration time and compared with a preset first threshold valve. An error message is generated when the value sent exceeds the first threshold value.