Prosthesis (i.e. – artificial body members) – parts thereof – or ai – Leg – Knee
Reexamination Certificate
2005-10-18
2005-10-18
Snow, Bruce E (Department: 3738)
Prosthesis (i.e., artificial body members), parts thereof, or ai
Leg
Knee
C623S045000
Reexamination Certificate
active
06955692
ABSTRACT:
A leg prosthesis adapted to a thigh stump includes an adapter (2) for a knee joint (3), a knee joint (3) mounted on this adapter, and a prosthetic lower leg (4) coupled to the knee joint (3). A prosthetic foot (5) is attached to this prosthetic lower leg and can pivot into a toes-raised foot position. The knee joint (3) upon transition from the extended position to the bent position performs a combined rolling-sliding movement about a pivot axis (6). A force-transmitting element (8) moves the prosthetic foot (5) substantially from the toes-down foot position to the toes-raised foot position during bending of the knee joint (3). Each bending position of the knee joint is transformed by a converter into an unambiguous electrical signal, which is supplied to a programmable control device, which generates a signal used to control an electrically adjustable actuator, which increases or decreases the resistance of the knee joint against or for further bending according to the signal.
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Dietl H. et al., “The Application of Electronics in Prosthetics for Lower Extremities,”Med. Orth. Tech.117:31-35 (1997).
Akin Gump Strauss Hauer & Feld & LLP
ESKA Implants GmbH & Co.
Snow Bruce E
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