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:
Mar. 10, 2015
Filed:
Apr. 30, 2008
Alessandro Balboni, Granarolo dell'Emilia, IT;
Leonardo Balli, Florence, IT;
Denis Mattia DE Micheli, Navacchio di Cascina, IT;
Gabriele Donati, Pescia, IT;
Nicola Ferrini, Terricciola, IT;
Alessandro Balboni, Granarolo dell'Emilia, IT;
Leonardo Balli, Florence, IT;
Denis Mattia De Micheli, Navacchio di Cascina, IT;
Gabriele Donati, Pescia, IT;
Nicola Ferrini, Terricciola, IT;
Rizzoli Ortopedia S.p.A., Budrio, IT;
Abstract
A above knee prosthesis (P) applied to femoral connection () of an amputee that comprises a upper hinge () connected to femoral connection of the patient, an articulation axis () with the function of reproducing the knee movements, a tibia-calf muscle unit () pivotally connected to the femoral•segment and a damper () that reproduces some functions of the calf muscle and ensures to the prosthesis to brake and to allow the sequential swing and stance phases typical of the gait. The damper comprises a cylinder () wherein a piston () and a stem () act connected to each other and adapted to carry out a damping reaction of said damper responsive to the forces loaded on the prosthesis. In particular, a force transducer is provided in the damper arranged, in particular, in the stem with a microprocessor that receives a force signal from the transducer and operates means for adjusting the reaction of the damper responsive to the detected force signal.