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. 23, 2002
Filed:
Dec. 27, 1999
Dieter Engel, Reinfeld, DE;
Jürgen Manigel, Klingberg, DE;
Claus Bunke, Sereetz, DE;
Matthias Witt, Lübeck, DE;
Other;
Abstract
An improved respirator with a breathing circuit ( ) and a corresponding process for operating the respirator are provided. Defined breathing gas volumes can be delivered to the patient and the current operating state can be reliably monitored despite a strong breathing gas volume flow being delivered in the breathing circuit ( ). A gas delivery element ( ) designed as a rotary compressor is connected on the inlet side to a reversible breathing gas reservoir ( ) and on the outlet side to a patient connection piece ( ) for inspiration via a first gas volume flow sensor ( ) with a first nonreturn valve ( ). A second gas volume flow sensor ( ) is located in the connection line between the patient connection piece ( ) and the patient being inspirated. The patient connection piece ( ) is connected for expiration to a second nonreturn valve ( ) via a third gas volume flow sensor ( ) and to the reversible breathing gas reservoir ( ) via a controllable shut-off valve ( ). At least one measuring and control device ( ) is connected to the gas volume flow sensors ( ), it receives their measured signals and sends control signals to the gas delivery element ( ) and to the controllable shut-off valve ( ).