Cushion structure of artificial knee joint

Details Cushion structure of artificial knee joint Cushion structure of artificial knee joint

2011-07-26

2011-07-26

Snow, Bruce E (Department: 3738)

Prosthesis (i.e., artificial body members), parts thereof, or ai

Leg

Knee

Reexamination Certificate

active

07985264

ABSTRACT:
An artificial knee joint includes a joint support having upper and lower ends jointed to outside links and an upper link respectively; a brake block having upper and lower jointing holes respectively jointing a lower end of the upper link and a connector, and having an upper portion forming a positioning slot; a hydraulic cylinder arranged inside the brake block and having an upper end coupled to the joint support; a connector having a lower portion connected to a shank and an upper end portion through which a positioning axle extends; and outside links having an upper end jointed to an upper jointing hole of the joint support and a lower end jointed to a jointing hole of the connector. A cylinder barrel, a piston, a resilient element, and an adjusting bolt are arranged inside the connector and the piston is set against a lower end of the brake block.

REFERENCES:
patent: 6086616 (2000-07-01), Okuda et al.
patent: 2004/0107008 (2004-06-01), Veen
patent: 2005/0143839 (2005-06-01), Chen et al.
patent: 2009/0088867 (2009-04-01), Andrysek
patent: 2010/0100197 (2010-04-01), Kremser et al.

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