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:
Nov. 19, 2019
Filed:
Dec. 22, 2016
Drägerwerk Ag & Co. Kgaa, Lübeck, DE;
Draägerwerk AG & Co. KGaA, Lübeck, DE;
Abstract
A method and a control program for operating an anesthesia apparatus, as well as an anesthesia apparatus (), which operates according to the method are provided. The anesthesia apparatus includes a breathing gas feed unit () intended for displacing a breathing gas volume in a breathing circuit (). A piston () brings about the displacement of the breathing gas. Switching over between a first mode of operation and a second mode of operation during the return of the piston () allows for a presetting of a corresponding piston return velocity. The piston return velocity depends on a volume flow in an exhalation branch () of the breathing circuit () in the first mode of operation. The piston return velocity depends on a minimally necessary piston return velocity in the second mode of operation.