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:
Oct. 02, 2001
Filed:
Oct. 07, 1999
Applicant:
Inventors:
Mikael Kock, Akersberga, SE;
Pär Emtell, Vällingby, SE;
Assignee:
Siemens Elema AB, Solna, SE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61M 1/500 ;
U.S. Cl.
CPC ...
A61M 1/500 ;
Abstract
An anaesthetic machine for connection to a patient's airways has a fan with an inlet and an outlet, a first system of flow paths connected between the fan's outlet and inlet, and a second system of flow paths connected between the fan's outlet and inlet. A fast system with wide variability with respect to operating modes is achieved by arranging a shunt valve at the fan's outlet in order to regulate the amount of gas flowing into the first system of flow paths and the second system of flow paths respectively, and a control unit is provided to control the shunt valve.