Becker Orthopedic Appliance Company, Inc.

Bloorview Macmillan Centre

Stephen Naumann

Jan Andrysek

Devin James Ostrom

Ivan D Samila

William L Cleghorn

A prosthetic knee joint including stance-phase control means comprising lock or latch for holding the knee in a straight condition, and means determining the status of the latch, said status determining means defining a control axis located so that the lock or latch is activated when a load imposed on the joint passes through a line posterior to said axis, and is de-activated when the load passes through a line anterior to said axis.

Artificial knee joint

A coupling, for example, for an orthotic brace has a cam member with a first planar bearing face journalled for rotation on a planar bearing surface of a first coupling portion, and a second planar bearing face inclined to the first face and journalled to rotate relative to a planar bearing surface of a second coupling portion. A clamping device urges the faces and surfaces together to exert a frictional reaction retaining the cam member in a selected rotational position and retains the coupling portions rigidly opposed towards the cam member.

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Toronto, Canada

Stephen Naumann