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1. (WO2018065615) JOINT DEVICE, HYDRAULIC UNIT AND METHOD FOR CONTROLLING A JOINT DEVICE

Pub. No.:    WO/2018/065615    International Application No.:    PCT/EP2017/075573
Publication Date: Fri Apr 13 01:59:59 CEST 2018 International Filing Date: Sat Oct 07 01:59:59 CEST 2017
IPC: A61F 2/64
Applicants: OTTO BOCK HEALTHCARE PRODUCTS GMBH
Inventors: SEYR, Martin
SIMA, Harald
AUBERGER, Roland
Title: JOINT DEVICE, HYDRAULIC UNIT AND METHOD FOR CONTROLLING A JOINT DEVICE
Abstract:
The invention relates to a joint device with an upper part (1) and a lower part (2) which are mounted on each other so as to be pivotable about a pivot axis (3), with a hydraulic unit (100) secured on the upper part (1) and the lower part (2), with a housing (10) in which a cylinder (12) is arranged, in which a working piston (30) connected to a piston rod (35) is mounted displaceably and divides the cylinder (12) into two chambers (41, 42). According to the invention, provision is made that the working piston (30) is coupled to at least one spring mechanism (50) which transmits tensile forces and compressive forces and which engages on at least one abutment (31, 32) arranged displaceably inside the cylinder (12).