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. 17, 2021
Filed:
Mar. 30, 2016
Hamamatsu Photonics K.k., Hamamatsu, JP;
Tomoya Nakazawa, Hamamatsu, JP;
Rui Sekine, Hamamatsu, JP;
HAMAMATSU PHOTONICS K.K., Hamamatsu, JP;
Abstract
A blood pressure information calculating device includes an input unit to which a waveform based on a pulse wave of the subject and reference blood pressure information serving as a reference for calculating the blood pressure information on the basis of the waveform based on the pulse wave are input, a conversion unit that calculates a phase spectrum of a waveform based on the pulse wave by performing Fourier transformation on the waveform based on the pulse wave, a calculation unit that calculates a correction value using at least one of a phase of a main wave corresponding to a pulse of the subject and a phase of a second harmonic wave of the main wave on the basis of the phase spectrum, and a calculation unit that calculates an average blood pressure by correcting the reference blood pressure information using the correction value.