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. 16, 2005
Filed:
Nov. 08, 2004
Thomas Krüger, Reinfeld, DE;
Hans-georg Wahle, Reinfeld, DE;
Thomas Krüger, Reinfeld, DE;
Hans-Georg Wahle, Reinfeld, DE;
Dräger Medical AG & Co. KGaA, Lübeck, DE;
Abstract
A respirator with a tidal volume-measuring device () between a respiration bag () and a patient adapter () provides accurate metering of the tidal volume. The device includes a first pressure-measuring device () and a breathing gas interruptor () in series sequence between the patient adapter () and the tidal volume-measuring device (). A second pressure-measuring device () is provided between the tidal volume-measuring device () and the respiration bag (). A control unit () is connected with the tidal volume-measuring device () and the pressure-measuring devices () and sends control signals in such a way that when a predetermined tidal volume is reached, the breathing gas interrupter () is switched to the closed position, and that the closed position is eliminated when the pressure pmeasured with the second pressure-measuring means () has dropped below the pressure pdetermined with the first pressure-measuring means ().