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:
Jun. 06, 2017
Filed:
Dec. 18, 2012
Omron Healthcare Co., Ltd., Muko-shi, Kyoto, JP;
Public University Corporation Nara Medical University, Kashihara-shi, Nara, JP;
Hironori Sato, Moriyama, JP;
Naoki Mori, Takatsuki, JP;
Tomoko Hashimoto, Suita, JP;
Toshihiko Ogura, Inuyama, JP;
Shozo Takamatsu, Nagaokakyo, JP;
Hideo Utsuno, Suita, JP;
Kimihiko Kichikawa, Kashihara, JP;
Hirofumi Ito, Kashihara, JP;
OMRON HEALTHCARE CO., LTD., Muko, JP;
Abstract
A first calculation unit receives phase characteristics Pa(f) and Pb(f) outputted from frequency transform units, calculates a propagation time difference based on a phase difference between the two phase characteristics in a high-frequency component thereof, and calculates a pulse wave velocity by dividing a difference in the distances of vascular pathways from the heart to respective measurement areas. Meanwhile, a second calculation unit calculates a pulse wave velocity by dividing the stated difference in the distances by a appearance time difference at a predetermined position in respective pulse waveforms obtained by rendering the measurement signals Pa(t) and Pb(t) on a time axis. A comparison unit compares the pulse wave velocities, and in the case where the ratio thereof is outside a predetermined range, an evaluation result indicating that it is possible that a predetermined pathologic change is present in the vascular pathway is outputted to a display processing unit.