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. 15, 1991
Filed:
Oct. 29, 1990
Applicant:
Inventor:
Hans D Polaschegg, Oberursel, DE;
Assignee:
Fresenius AG, Bad Homburg van der Hohe, DE;
Primary Examiner:
Int. Cl.
CPC ...
A61M / ;
U.S. Cl.
CPC ...
604 67 ; 128D / ;
Abstract
This invention relates to an apparatus for dosed, continuous and simultaneous infusion operations. To prevent an uncontrolled flow through the conveying conduits, which can above all occur during the installation of a flexible tube into or its removal from a peristaltic pump due to the action of gravity, the invention provides a valve (5, 6) which is positioned in the conveying conduit of the peristaltic pump and operatively connected to a door detector of the pump in such a way that the valve is closed when the door is opened, and opened when the door is closed.