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:
Jul. 26, 2011
Filed:
Feb. 22, 2008
David Moser, Hampshire, GB;
Fadi Abimosleh, Springboro, OH (US);
Mir Saeed Zahedi, London, GB;
Graham Harris, Hampshire, GB;
Stephen Terry Lang, Hampshire, GB;
Andrew John Sykes, Surrey, GB;
David Moser, Hampshire, GB;
Fadi Abimosleh, Springboro, OH (US);
Mir Saeed Zahedi, London, GB;
Graham Harris, Hampshire, GB;
Stephen Terry Lang, Hampshire, GB;
Andrew John Sykes, Surrey, GB;
Chas. A. Blatchford & Sons Limited, Hampshire, GB;
Abstract
A prosthetic ankle and foot combination has an ankle joint mechanism constructed to allow damped rotational movement of a foot component relative to a shin component. The mechanism provides a continuous hydraulically damped range of ankle motion during walking with dynamically variable damping resistances, and with independent variation of damping resistances in the plantarflexion and dorsiflexion directions. An electronic control system coupled to the ankle joint mechanism includes at least one sensor for generating signals indicative of a kinetic or kinematic parameter of locomotion and/or walking environment, the mechanism and the control system being arranged such that the damping resistances effective over the range of motion of the ankle are adapted automatically in response to such signals. Single and dual piston hydraulic damping arrangements are disclosed, including arrangements allowing independent heel-height adjustment.