公开(公告)号：EP1620866B1

公开(公告)日：2009-04-08

申请号：EP03787180.3

申请日：2003-11-26

申请人： Össur hf

发明人： HSU, Henry ,  BISBEE III, Charles, R. ,  PALMER, Michael Lars ,  LUKASIEWICZ, Ronald, J. ,  LINDSAY, Michael, W. ,  PRINCE, Stephen, W.

IPC分类号： H01F1/44 ,  A61F2/64 ,  C10M171/00

CPC分类号： A61F2/68 ,  A61F2002/5004 ,  A61F2002/503 ,  A61F2002/5033 ,  A61F2002/6818 ,  C10M171/001 ,  C10M2201/05 ,  C10M2213/06 ,  C10M2213/0606 ,  C10N2210/08 ,  C10N2220/022 ,  C10N2220/023 ,  C10N2220/082 ,  C10N2230/02 ,  C10N2260/00 ,  C10N2260/06 ,  C10N2260/09 ,  C10N2260/12 ,  H01F1/447

摘要： 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.