System for controlling artificial knee joint action in an above

Details System for controlling artificial knee joint action in an above System for controlling artificial knee joint action in an above

1991-12-05

1995-01-24

Willse, David H.

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

Having electrical actuator

623 44, 188299, 188317, 18832215, A61F 264, A61F 270

Patent

active

053839390

ABSTRACT:
This invention relates to an above knee prosthesis which employs a hydraulic damper to passively regulate the angular velocity or rotation of the artificial knee joint. A programmed microprocessor recognizes common gait patterns from information received from bending moment strain and knee angle sensors on the prosthesis. The microprocessor, under the control of a rule-based program, reacts at various transition points in the gait by activating a motor which in turn adjusts a valve assembly in the damper. The valve assembly is capable of variably and separately damping the knee joint motion in each of flexion and extension at the same time. Gait is improved because of the improved extent of control of knee action. In addition, distinct routines such as stair descending and sitting down can also be practiced.

REFERENCES:
patent: 2372710 (1945-04-01), Chisholm
patent: 5062856 (1991-11-01), Sawamura et al.

Affiliated with

Also associated with

Rating

System for controlling artificial knee joint action in an above does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with System for controlling artificial knee joint action in an above , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System for controlling artificial knee joint action in an above will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1465742