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:
Aug. 19, 2025
Filed:
Oct. 24, 2024
Fresenius Medical Care Holdings, Inc., Waltham, MA (US);
Awe Technologies Llc, Bay Shore, NY (US);
Fresenius Medical Care Deutschland Gmbh, Bad Homburg, DE;
Dipen N. Sinha, Bay Shore, NY (US);
Robert Schaefer, Bay Shore, NY (US);
Curtis Osterhoudt, Hesperus, CO (US);
Peter G. Espina, Bay Shore, NY (US);
Martin J. Crnkovich, Walnut Creek, CA (US);
Fei Wang, Concord, CA (US);
Steve M. Bowman, Essex, MA (US);
Martin Urban, Thuengersheim, DE;
AWE Technologies LLC, Bay Shore, NY (US);
Fresenius Medical Care Deutschland GmbH, Bad Homburg, DE;
Fresenius Medical Care Holdings, Inc., Waltham, MA (US);
Abstract
This disclosure teaches a system and method for monitoring an extracorporeal blood circuit of a patient and identifying a needle dislodgement. The method includes identifying a potential needle dislodgement event based on changes in pressure of the extracorporeal blood circuit, searching for a heart rate of a patient by analyzing an optical backscatter signal from an optical sensor attached to the extracorporeal blood circuit or by analyzing a pressure signal representative of the pressure in the extracorporeal blood circuit, and verifying the potential needle dislodgement event is a needle dislodgement based on the absence of the heart rate.