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.:

US 8914156 B1

PDF
Full Text
Expired
Date of Patent:
Dec. 16, 2014

Filed:

Jan. 16, 2014
Applicant:

Fresenius Medical Care Deutschland Gmbh, Bad Homburg, DE;

Inventors:

Frank L. Hedmann, Volkach, DE;

Stephan Klatte, Nienburg, DE;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05D 7/00 (2006.01); G05B 11/01 (2006.01); B01D 21/30 (2006.01); C02F 1/00 (2006.01); C02F 9/00 (2006.01); A61M 1/00 (2006.01); G06D 7/00 (2006.01); G06F 19/00 (2011.01); A61M 1/28 (2006.01); G05D 7/06 (2006.01);
U.S. Cl.
CPC ...
G05D 7/0635 (2013.01); A61M 2205/50 (2013.01); G06D 7/00 (2013.01); G06F 19/3481 (2013.01); A61M 2205/128 (2013.01); A61M 1/28 (2013.01);
Abstract

A method is provided for the control of valves for flow path control, in particular in a medical treatment machine, having a plurality of processes for the manufacture of flow paths by control of a group of valves, with each process claiming a group of valves suitable for its carrying out for itself so that other processes cannot change the switching state of these valves and with each process itself making a decision on the release of the valves claimed by it. In addition, a method is provided for monitoring the then current and/or scheduled state of a plurality of valves in the flow path control, determining the connections resulting from the switching state of the valves, and comparing the resulting connections with a predetermined number of non-permitted connections.


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