Patent ID: 7591857

Claim:
A prosthetic knee-joint assembly for a prosthetic limb comprising: a proximal segment; a distal segment pivotally disposed with respect to the proximal segment, and pivotable with respect to the proximal segment in at least an anterior-posterior direction to provide a knee-joint pivot point; a first coupling including a first coupling base component monolithically integrated into the proximal segment, the first coupling base component having a planar proximal surface and a first groove extending into and along the proximal surface, the first coupling further including a first bearing portion slidably received within the first groove and further including a first frustopyramidal boss extending in a proximal direction from the first bearing portion, the first frustopyramidal boss being rotatable with respect to the first bearing portion and adapted to mount the proximal segment to an above-knee prosthetic limb component; a second coupling including a second coupling base component monolithically integrated into the distal segment, the second coupling base component having a planar distal surface and a second groove extending into and along the distal surface, the second coupling further including a second bearing portion slidably received within the second groove and further including a second frustopyramidal boss extending in a distal direction from the second bearing portion, the second frustopyramidal boss being rotatable with respect to the second bearing portion and adapted to mount the distal segment to a below-knee prosthetic limb component; a first releasable lock adapted to selectively prohibit rotation of the first frustopyramidal boss respect to the first bearing portion; a second releasable lock adapted to selectively prohibit sliding of the first bearing portion in the first groove; a third releasable lock adaptable to selectively prohibit rotation of the second frustopyramidal boss with respect to the second bearing portion; and a fourth releasable lock adapted to selectively prohibit sliding of the second bearing portion in the second groove.