Electronically controlled prosthetic knee

Details Electronically controlled prosthetic knee Electronically controlled prosthetic knee

2006-07-20

2011-11-08

Stewart, Alvin J (Department: 3774)

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

Having electrical actuator

C623S026000, C623S039000

Reissue Patent

active

RE042903

ABSTRACT:
The present invention relates to a variable-torque magnetorheologically actuated prosthetic knee which utilizes a plurality of interspersed and alternating rotors and stators to shear magnetorheological fluid in gaps formed therebetween. Advantageously, by operating in the “shear mode” there is substantially no or negligible fluid pressure buildup or change. Moreover, the multiple MR fluid gaps or flux interfaces desirably allow for the production of a large torque at low speed—eliminating the need for a transmission—and also for a wide dynamic torque range. One embodiment of the invention allows the rotors and/or stators to close the gaps therebetween to create a frictional torque component, thereby forming a “hybrid” braking system which provides a total torque or damping which is a combination of viscous torque and frictional torque.

REFERENCES:
patent: 4005496 (1977-02-01), Wilkes
patent: 4064569 (1977-12-01), Campbell
patent: 4200003 (1980-04-01), Miller
patent: 4685927 (1987-08-01), Haupt
patent: 4790522 (1988-12-01), Drutchas
patent: 4795474 (1989-01-01), Horvath
patent: 4854428 (1989-08-01), Horvath
patent: 4893648 (1990-01-01), Horvath
patent: 4958705 (1990-09-01), Horvath
patent: 5092902 (1992-03-01), Adams et al.
patent: 5181931 (1993-01-01), van de Veen
patent: 5277281 (1994-01-01), Carlson et al.
patent: 5284330 (1994-02-01), Carlson et al.
patent: 5376137 (1994-12-01), Shorter et al.
patent: 5383939 (1995-01-01), James
patent: 5443521 (1995-08-01), Knoth et al.
patent: 5472412 (1995-12-01), Knoth
patent: 5476441 (1995-12-01), Durfee et al.
patent: 5545232 (1996-08-01), van de Veen
patent: 5545233 (1996-08-01), Fitzlaff
patent: 5571205 (1996-11-01), James
patent: 5632725 (1997-05-01), Silver et al.
patent: 5645590 (1997-07-01), van de Veen
patent: 5645752 (1997-07-01), Weiss et al.
patent: 5670077 (1997-09-01), Carlson et al.
patent: 5683615 (1997-11-01), Munoz
patent: 5704945 (1998-01-01), Wagner et al.
patent: 5711746 (1998-01-01), Carlson
patent: 5728174 (1998-03-01), Fitzlaff
patent: 5746774 (1998-05-01), Kramer et al.
patent: 5749533 (1998-05-01), Daniels
patent: 5755813 (1998-05-01), Krukenberg
patent: 5823309 (1998-10-01), Gopalswamy et al.
patent: 5842547 (1998-12-01), Carlson et al.
patent: 5888212 (1999-03-01), Petrofsky et al.
patent: 5888236 (1999-03-01), van de Veen
patent: 5893891 (1999-04-01), Zahedi
patent: 5900184 (1999-05-01), Weiss et al.
patent: 5906767 (1999-05-01), Karol et al.
patent: 5941913 (1999-08-01), Woolnough et al.
patent: 5947238 (1999-09-01), Jolly et al.
patent: 5948021 (1999-09-01), Radcliffe
patent: 5960918 (1999-10-01), Moser et al.
patent: 5967273 (1999-10-01), Hampton
patent: 5972035 (1999-10-01), Blatchford
patent: RE36521 (2000-01-01), Hiemisch
patent: 6027664 (2000-02-01), Weiss et al.
patent: 6095486 (2000-08-01), Ivers et al.
patent: 6113642 (2000-09-01), Petrofsky et al.
patent: 6139586 (2000-10-01), Wagner et al.
patent: 6165226 (2000-12-01), Wagner
patent: 6168634 (2001-01-01), Schmitz
patent: 6187051 (2001-02-01), Gerad van de Veen
patent: 6206933 (2001-03-01), Shorter et al.
patent: 6241775 (2001-06-01), Blatchford
patent: 6352144 (2002-03-01), Brooks
patent: 6423098 (2002-07-01), Biedermann
patent: 6443993 (2002-09-01), Koniuk
patent: 6517585 (2003-02-01), Zahedi et al.
patent: 6679920 (2004-01-01), Biedermann et al.
patent: 6719806 (2004-04-01), Zahedi et al.
patent: 6755870 (2004-06-01), Biedermann et al.
patent: 43 05 213 (1993-08-01), None
patent: 43 18 901 (1994-01-01), None
patent: 195 21 464 (1997-03-01), None
patent: 0 503 775 (1992-09-01), None
patent: 0 628 296 (1994-12-01), None
patent: 0 654 254 (1999-09-01), None
patent: 0 957 838 (2000-08-01), None
patent: 1 125 825 (2001-08-01), None
patent: 2 623 086 (1989-05-01), None
patent: 2 244 006 (1991-11-01), None
patent: 2 328 160 (1999-02-01), None
patent: 2 334 891 (1999-09-01), None
patent: 2 338 653 (1999-12-01), None
patent: 60-81530 (1985-05-01), None
patent: S60-81530 (1985-05-01), None
patent: 01-158233 (1989-06-01), None
patent: 02-150516 (1990-06-01), None
patent: WO 94/06374 (1994-03-01), None
patent: WO 95/26171 (1995-10-01), None
patent: WO 96/41599 (1996-12-01), None
patent: WO 98/38951 (1998-09-01), None
patent: WO 99/08621 (1999-02-01), None
patent: WO 99/29272 (1999-06-01), None
patent: WO 99/29272 (1999-06-01), None
patent: WO 99/44547 (1999-09-01), None
patent: WO 00/38599 (2000-07-01), None
patent: WO 01/17466 (2001-03-01), None
Ari Wilkenfeld & Hugh Herr,An Auto-Adaptive External Knee Prosthesis,Artificial Intelligence Laboratory, MIT, Cambridge, Massachusetts, Sep. 2000, 3 pages.
Ari Wilkenfeld, Ph.D.,Biologically inspired autoadaptive control of a knee prosthesis,Dissertation Abstract, MIT, Cambridge, Massachusetts, Sep. 2000, 1 page.
Otto Bock Orthopadische Industrie,C-LEG A New Dimension in Amputee Mobility,1997, 4 pages.
State-Of-The-Art Prosthetic Leg Incorporates Magneto-Rheological Technology,Medical Product Manufacturing News, Nov. 2000, p. 42.
Ari J. Wilkenfeld,Biologically Inspired Autoadaptive Control of a Knee Prosthesis,Ph.D. Dissertation, Massachusetts Institute of Technology, 2000, 106 pages.
Office Action in corresponding Japanese Patent Application No. 2001-555610, dated May 21, 2008, with English translation, 8 pp.
Office Action in corresponding Japanese Patent Application No. 2001-555610, dated Feb. 4, 2009, 11 pp.

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