Crutch with elbow and shank springs

Details Crutch with elbow and shank springs Crutch with elbow and shank springs

1994-06-09

1995-10-17

Mai, Lanna

Tent, canopy, umbrella, or cane

Canes, sticks, crutches, and walking aids

Crutches

135 71, A61H 302

Patent

active

054581435

ABSTRACT:
A crutch system comprising an elbow spring and a shank spring stores and releases energy during crutch locomotion. The elbow spring compresses during elbow flexion and then expands, extending the elbow and lifting the body upwards during uphill crutch locomotion. The shank spring compresses during impact of the crutch bottom with the ground and then expands, thrusting the user upwards and forwards.
The crutch of this invention maximizes stability, cushioning, and efficiency.

REFERENCES:
patent: 1244249 (1917-10-01), Schlick
patent: 1547046 (1925-07-01), King
patent: 3213869 (1965-10-01), Frank
patent: 4869280 (1989-09-01), Ewing
patent: 5331989 (1994-07-01), Stephens

Affiliated with

Also associated with

Rating

Crutch with elbow and shank springs does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Crutch with elbow and shank springs, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Crutch with elbow and shank springs will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-590220