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US 9,375,377 B1Granted
Hands-free crutch assembly
OwnerAmanda Marie Edwardsinventor
Life of this patent
Estimating the term…
Abstract
A hands-free crutch assembly allows a user's foot to float suspended over an artificial foot, while transferring at least a portion of the walking load to the upper leg and permitting more natural knee flexion and extension while walking.
Claims19
A hands-free crutch assembly comprising:
- a support brace for releasable attachment to a leg of a user including:
- an upper leg brace portion releasably connectable along an upper leg of the user;
- a lower leg brace portion releasably connectable along a lower leg of the user;
- and
- at least one brace hinge connected to a lower end of the upper leg brace portion and an upper end of the lower leg brace portion and allowing pivotable motion therebetween along a pivot axis;
- at least one pivot support mechanism extending between the upper and lower leg brace portions including:
- a curved track extending rearwardly of the support brace along an arc coaxial with the pivot axis;
- and
- a carriage slidable on the curved track;
- at least one foot extension connected to the lower leg brace portion and extending downwardly therefrom;
- and
- a foot of the hands-free crutch assembly connected to a lower end of the at least one foot extension.
9 more elements
A hands-free crutch assembly comprising:
- a support brace for releasable attachment to a leg of a user including:
- an upper leg brace portion releasably connectable along an upper leg of the user;
- a lower leg brace portion releasably connectable along a lower leg of the user;
- and
- lateral and medial brace hinges connected to a lower end of the upper leg brace portion and an upper end of the lower leg brace portion and allowing pivotable motion therebetween along a common pivot axis;
- lateral and medial pivot support mechanisms extending between the upper and lower leg brace portions, each support mechanism including:
- a curved track extending rearwardly of the support brace along an arc coaxial with the common pivot axis;
- and
- a carriage slidable on the curved track;
- lateral and medial foot extensions connected to the lower leg brace portion and extending downwardly and forwardly therefrom;
- and
- a foot of the hands-free crutch assembly connected to lower ends of the lateral and medial foot extensions.
9 more elements
Dependencies are inferred from the claim text.