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:
Dec. 17, 2019
Filed:
Mar. 24, 2014
Shisei Datum Co., Ltd., Machida-shi, Tokyo, JP;
Riken, Hirosawa, Wako-shi, Saitama, JP;
Yukiyoshi Saito, Machida, JP;
Ryutaro Himeno, Wako, JP;
Shu Takagi, Wako, JP;
Fuyou Liang, Wako, JP;
Shisei Datum Co., Ltd., Tokyo, JP;
RIKEN, Saitama, JP;
Abstract
A vascular viscoelasticity evaluation device and method in which, a pulse wave obtained using a cuff is subjected to first derivation, a positive amplitude peak value Vfthat occurs first and a negative amplitude peak value Vrthat occurs second out of a plurality of negative amplitude peak values are detected in a state in which an external force substantially the same as or greater than the systolic blood pressure has been exerted on a blood vessel, and a ratio of the positive amplitude peak value Vfthat occurs first to the negative amplitude peak value Vrthat occurs second is calculated, and then the vascular viscoelasticity is evaluated on the basis of this calculated ratio.