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:
Oct. 18, 2005
Filed:
Feb. 13, 2004
Hans Grundei, Lübeck, DE;
Hans Grundei, Lübeck, DE;
ESKA Implants GmbH & Co., Lübeck, DE;
Abstract
A leg prosthesis adapted to a thigh stump includes an adapter () for a knee joint (), a knee joint () mounted on this adapter, and a prosthetic lower leg () coupled to the knee joint (). A prosthetic foot () is attached to this prosthetic lower leg and can pivot into a toes-raised foot position. The knee joint () upon transition from the extended position to the bent position performs a combined rolling-sliding movement about a pivot axis (). A force-transmitting element () moves the prosthetic foot () substantially from the toes-down foot position to the toes-raised foot position during bending of the knee joint (). Each bending position of the knee joint is transformed by a converter into an unambiguous electrical signal, which is supplied to a programmable control device, which generates a signal used to control an electrically adjustable actuator, which increases or decreases the resistance of the knee joint against or for further bending according to the signal.