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:
Aug. 16, 2016

Filed:

Oct. 20, 2010
Applicants:

Ki H. Chon, Worcester, MA (US);

Nandakumar Selvaraj, Worcester, MA (US);

Inventors:

Ki H. Chon, Worcester, MA (US);

Nandakumar Selvaraj, Worcester, MA (US);

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61B 5/02 (2006.01); A61B 5/0205 (2006.01); A61B 5/024 (2006.01); A61B 6/00 (2006.01); A61B 5/021 (2006.01); A61B 5/08 (2006.01); A61B 5/1455 (2006.01);
U.S. Cl.
CPC ...
A61B 5/02042 (2013.01); A61B 5/021 (2013.01); A61B 5/0816 (2013.01); A61B 5/14551 (2013.01);
Abstract

An apparatus and method for non-invasive monitoring and detection of sudden changes in cardiovascular hemodynamics, in which a PPG signal is obtained from a patient, a time-frequency spectrum (TFS) is computed from the PPG signal, instantaneous modulations at a plurality of time points defining a curve of a prominent frequency of oscillation are extracted from the TFS, a peak power spectral density sequence is computed using the instantaneous modulations, and instantaneous peak values for following prominent frequency oscillations are monitored.


Find Patent Forward Citations

Chon, Ki. (2016). Apparatus and method for respiratory rate detection and early detection of blood loss volume (U.S. Patent No. 9414753). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9414753

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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