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:
Nov. 05, 2024
Filed:
May. 24, 2019
National University Corporation Kagawa University, Kagawa, JP;
National University Corporation Kagawa University, Kagawa, JP;
Abstract
Provided are a pulse wave signal analyzer and an analysis method capable of determining a state of atrial fibrillation. The analyzer comprises a pulse wave detection unit for non-invasively detecting a pulse wave signal according to heartbeat of a living body; a spectrum generation unit for generating a frequency spectrum by Fourier transforming signal detected by the pulse wave detection unit; and an atrial fibrillation detection unit for detecting a state of atrial fibrillation based on the frequency spectrum generated by the spectrum generation unit. The spectrum generation unit repeatedly performs Fourier transform of the pulse wave signal at a predetermined time frame while shifting the time frame in a range of 0.005 to 0.02 seconds. The analyzer further comprises a filter for filtering the signal detected by the pulse wave detection unit, and the spectrum generation unit generates the frequency spectrum from signal output from the filter.
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