Single-shaft artificial limb knee joint with hydraulic cylinder with damping automatic adjusting function

• Main Authors: REN ZHIYU, REN ZHIQI
• Format: Patent
• Language: Chinese; English
• Published: 13.09.2019
• Subjects: BANDAGES, DRESSINGS OR ABSORBENT PADS; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF,TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; FILTERS IMPLANTABLE INTO BLOOD VESSELS; FIRST-AID KITS; FOMENTATION; HUMAN NECESSITIES; HYGIENE; MEDICAL OR VETERINARY SCIENCE; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; PROSTHESES; TREATMENT OR PROTECTION OF EYES OR EARS

The invention particularly relates to an artificial limb single-shaft hydraulic knee joint with a hydraulic cylinder with a gravity automatic adjusting damping function. The hydraulic cylinder is characterized in that: the hydraulic cylinder has multiple functions and small volume, and is a composite hydraulic cylinder consisting of a plurality of movable cylinder chambers, a plurality of movableplungers, independent knee bending extension adjusting valves, additional gravity hammers with automatic damping adjusting function, and related parts. The artificial limb knee joint is characterizedby also comprising a single-shaft hydraulic knee joint consisting of a single-shaft knee joint upper connecting body, a single-shaft knee joint lower connecting body and other joint components which are designed for the hydraulic cylinder. The upper end of the artificial limb knee joint is connected to an artificial limb receiving cavity, and the lower end is connected to a foot plate through a calf connecting rod and an a