US 2025/0332005 A1 · PUMP MECHANISM

Abstract

The present disclosure pertains to prosthetic systems that encompass a prosthetic foot and a pump mechanism devised to eliminate fluid between a prosthetic socket and a residual limb or liner, thereby sustaining a hypobaric pressure chamber within a cavity of the prosthetic socket. The pump mechanism may incorporate a fluid chamber established between a membrane and the housing of the pump mechanism. Forces resulting from the user's gait during the compression and expansion of the prosthetic foot can be transmitted to an L-brace, which is configured to actuate the membrane of the pump mechanism, facilitating the influx and efflux of fluid into and from the fluid chamber.

Claims20

Dependent claims

A prosthetic system comprising:

a pump mechanism operatively connectable to a prosthetic foot having an adaptor, the pump mechanism including:
a housing having an interior cavity;
a one-way valve assembly connecting to the housing and in fluid communication with the interior cavity;
a membrane located at least partially within the interior cavity;
a connector attached to the membrane and protruding outside the interior cavity;
and
an L-brace attached to the housing and/or the prosthetic foot and configured to cooperate with the prosthetic foot to actuate the membrane;
wherein the housing is positioned at or near a proximal end of the prosthetic foot below the adaptor.

5 more elements

Dependencies are inferred from the claim text.

Pump mechanism

Life of this patent

Pump mechanism

Life of this patent

Abstract

Claims20