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:
Jan. 23, 2024

Filed:

Jul. 20, 2018
Applicant:

University of Pittsburgh-of the Commonwealth System of Higher Education, Pittsburgh, PA (US);

Inventors:

Michael A. Rothfuss, Pittsburgh, PA (US);

Ervin Sejdic, Pittsburgh, PA (US);

Michael L. Gimbel, Pittsburgh, PA (US);

Murat Akcakaya, Pittsburgh, PA (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
A61B 8/06 (2006.01); A61B 5/00 (2006.01);
U.S. Cl.
CPC ...
A61B 8/06 (2013.01); A61B 5/0004 (2013.01); A61B 5/725 (2013.01); A61B 5/7264 (2013.01); A61B 2560/0219 (2013.01);
Abstract

A system for monitoring free flap patency includes transmit and receive transducers structured to be coupled to a blood vessel, and a plurality of circuitry modules structured to insonify a blood flow volume within the blood vessel and receive a scattered signal from the receive transducer, extract a baseband Doppler blood flow signal, V, from the scattered signal, extract a plurality of features from V, and classify the plurality of features and generate a binary signal based on the classification of the plurality of features, wherein the binary signal will have a first state responsive to the classification of the plurality of features indicating that a flow rate within the blood vessel is less than a predetermined level and a second state responsive to the classification of the plurality of features indicating the flow rate within the blood vessel is greater than or equal to the predetermined level.


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