Prosthesis (i.e. – artificial body members) – parts thereof – or ai – Leg – Foot
Patent
1993-02-19
1995-08-22
Willse, David H.
Prosthesis (i.e., artificial body members), parts thereof, or ai
Leg
Foot
623 55, 36 29, A61F 266
Patent
active
054435293
ABSTRACT:
The invention relates to a prosthetic device utilizing multiple bladders to absorb, store and release energy. In particular, the present invention relates to a prosthetic foot and leg device having a foot member extending from the heel end to the toe end and having a sole, wherein two or more bladders are secured to the bottom of said sole, to provide a smooth roll-over transition from heel-strike to toe-off. Generally, the bladders do not extend the length of the sole, so that the migration of air at heel-strike or toe-load is eliminated. Moreover, the bladders are positioned with one or more cavities therein, permitting the bladders to expand laterally inward and outward which advantageously provides stability and balance to the amputee.
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