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.

Date of Patent:
Jun. 09, 2015

Filed:

Feb. 07, 2011
Applicant:

Wei Zhang, Niederwerrn, DE;

Inventor:

Wei Zhang, Niederwerrn, DE;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61M 1/14 (2006.01); A61M 1/34 (2006.01); A61M 1/36 (2006.01); A61B 5/1455 (2006.01); A61B 5/00 (2006.01); A61M 39/10 (2006.01);
U.S. Cl.
CPC ...
A61M 1/3653 (2013.01); A61B 5/14557 (2013.01); A61M 2205/14 (2013.01); A61M 2202/0413 (2013.01); A61B 5/0059 (2013.01); A61B 5/14551 (2013.01); A61B 5/14552 (2013.01); A61M 2039/1005 (2013.01); A61B 5/1455 (2013.01); A61M 2202/0433 (2013.01); A61M 2202/0429 (2013.01); A61M 2205/3306 (2013.01); A61M 2205/33 (2013.01); A61B 5/0075 (2013.01); A61M 2205/15 (2013.01); A61M 2205/18 (2013.01); A61M 2230/201 (2013.01); A61M 2230/205 (2013.01); A61M 2230/207 (2013.01); A61M 2230/208 (2013.01); A61M 1/361 (2014.02); A61M 1/3656 (2014.02);
Abstract

A device and method for monitoring an access to a patient for an extracorporeal blood treatment apparatus with an extracorporeal blood circuit are described, as well as an extracorporeal blood treatment apparatus with a device for monitoring the vascular access. The device and method are based on the monitoring of a characteristic property of the blood, in particular the concentration of haemoglobin in the blood flowing in the arterial blood line of extracorporeal blood circuit I of an extracorporeal blood treatment apparatus A. In the event of an incorrect vascular access, the flow conditions change in the communicating intra- and extracorporeal blood circulation system. These changes in the flow conditions can be detected as a change in the haemoglobin concentration. A disconnection of venous puncture cannula for the patient access is ascertained by a reduction in the haemoglobin concentration in the blood in arterial blood line.


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Zhang, Wei. (2015). Device and method for monitoring a vascular access for an extracorporeal blood treatment (U.S. Patent No. 9050420). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9050420

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