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. 22, 1995
Filed:
Jun. 09, 1993
Seishi Sawamura, Kobe, JP;
Sakuya Nakajima, Nishinomiya, JP;
Kunio Amemori, Kobe, JP;
Hidehisa Oku, Akashi, JP;
Akio Nakagawa, Itami, JP;
Ichiro Kitayama, Kobe, JP;
Mikio Yuki, Akashi, JP;
Shiro Horiguchi, Takasago, JP;
Yoshihisa Araki, Takasago, JP;
Shigeru Yuki, Takasago, JP;
Toshihiro Hamada, Kobe, JP;
Kabushiki Kaisha Kobe Seiko Sho, Kobe, JP;
Hyogo Prefectual Social Welfare Corporation, Kobe, JP;
Abstract
The present invention is intended to provide a teaching playback swing-phase-controlled above knee prosthesis which enables an external data setting to set the mechanism of the teaching playback swing-phase-controlled above knee prosthesis for conditions that enable the mechanism to operate for motions according to a walking speed. The teaching playback swing-phase-controlled above knee prosthesis includes a structural body having a thigh frame and a leg frame pivotally joined to the thigh frame for swing motion relative to the thigh frame, an air cylinder having a cylinder body, a piston axially slidably fitted in the cylinder body and provided with a valve, and a piston rod having one end fixed to the piston and the other end pivotally joined to the thigh frame, and a stepping motor for adjusting the opening of the valve of the cylinder. The opening of the valve of the cylinder is adjusted by the stepping motor to regulate sliding speed of the piston by adjusting the resistance against the flow of air through the valve so that the leg frame is able to swing relative to the thigh frame properly according to a predetermined walking speed. Data concerning the opening of the valve is taught to the teaching playback swing-phase-controlled above knee prosthesis by signals sent out by an external data setting device.