Magnetorheological fluid compositions and prosthetic knees...

Details Magnetorheological fluid compositions and prosthetic knees... Magnetorheological fluid compositions and prosthetic knees...

2006-09-05

2006-09-05

Koslow, C. Melissa (Department: 1755)

Compositions

Magnetic

Flaw detection or magnetic clutch

Reexamination Certificate

active

07101487

ABSTRACT:
The present invention relates in one embodiment to magnetorheological fluids utilized in prosthetic joints in general and, in particular, to magnetorheological fluids utilized in controllable braking systems for prosthetic knee joints. Preferred magnetorheological fluids of the present invention comprises polarizable iron particles, a carrier fluid, and optionally an additive. Preferred additives include, but are not limited to functionalized carrier fluids as well as derivatized fluoropolymers. Preferred carrier fluids include, but are not limited, to perfluorinated polyethers.

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