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. 01, 2022
Filed:
Jul. 22, 2016
Nipro Corporation, Osaka, JP;
Harada Electronics Industry Co., Ltd., Sapporo, JP;
Shigeru Tadano, Sapporo, JP;
Ryo Takeda, Sapporo, JP;
Harukazu Tohyama, Sapporo, JP;
Yoshihiko Sano, Osaka, JP;
Masahide Harada, Sapporo, JP;
NIPRO CORPORATION, Osaka, JP;
HARADA ELECTRONICS INDUSTRY CO., LTD., Sapporo, JP;
Abstract
A triaxial acceleration sensor and a triaxial angular rate sensor are mounted on each of the lower limb portions on both sides of one joint among joints constituting a part of one lower limb of a subject. The acceleration and angular rate of each lower limb portion are measured by the triaxial acceleration sensor and triaxial angular rate sensor while the subject is walking. The orientations of each lower limb portion while walking are calculated on the basis of the measured acceleration and angular rate. A three-dimensional model including the motion trajectory of one joint is constructed by linking the lower limb portions in the calculated orientation to each other. The angle formed by the acceleration vector of one joint when the heel strikes the ground to the movement trajectory in the sagittal plane is calculated as a gait parameter.