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. 05, 2013
Filed:
Dec. 14, 2007
David Moser, Hampshire, GB;
Fadi Abimosleh, Springboro, OH (US);
Mir Saeed Zahedi, London, GB;
Graham Harris, Hampshire, GB;
Stephen Terry Lang, Hampshire, GB;
Andrew Sykes, Hampshire, 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 Sykes, Hampshire, GB;
Blatchford Products Limited, Hampshire, GB;
Abstract
A self-aligning prosthetic foot and ankle assembly has an ankle unit pivotally mounting a foot component. The ankle unit contains a hydraulic piston and cylinder assembly having a piston which is linearly movable within a cylinder. The axis of the cylinder is coincident with a shin axis defined by a shin connection interface on the ankle unit. Bypass passages containing damping resistance control valves provide continuous hydraulic damping of dorsi and plantar ankle flexion, the unit being such that, over the major part of the range of damped movement, there is no resilient biasing in either the dorsi or the plantar direction. This confers a number of advantages, including stabilisation of standing, balance control, and improved stair-walking and ramp-walking.