Abstract: A modular interface connector for coupling a prosthetic limb socket assembly to a prosthetic limb upright assembly comprises an interface cushion member adapted to fit substantially entirely within the distal end of the socket, having a proximate end adapted to abut the wearer's residual limb; a first attachment mechanism for releasably attaching the interface connector within the distal end of the socket; and a second attachment mechanism for releasably attaching the upright assembly to the distal end of the socket. When attached in the socket, the interface connector provides an air-tight seal between the attachment mechanism and the wearer's residual limb.

Abstract: A removable interface cushion for a prosthetic limb is adapted to be snugly fitted within a prosthetic limb outer socket over the interconnection components which connect the outer socket to the upright assemblies. The interface cushion is adapted to abut and provide comfort to the wearer's residual limb when the socket is worn on the residual limb, because the interface cushion is formed from an elastomeric material and has a substantially concave proximate surface. The interface cushion also includes a cavity in the distal end of the cushion for receiving the interconnection components; and the mouth of the cavity has an annular projection extending therefrom which is adapted to abut the inner surface of the socket to create an airtight seal between the interface cushion and the inner surface of the socket when the cushion is snugly fitted into the distal end socket cavity.

Abstract: A prosthetic limb comprises a socket for receiving a patient's residual limb, and an upright assembly. The socket includes a base provided in its distal end. The base includes a chamber therewithin and an channel for providing fluid communication between the chamber and the interior of the socket. A duct extends through the socket and engages the base such that it is in fluid communication with the chamber. A valve is coupled to the duct to allow controlled or forced gas transfer to and from the interior of the socket. A seal is provided between the base and the socket to facilitate suction between the patient's residual limb and the socket.

Abstract: A modular interface connector for coupling a prosthetic limb socket assembly to a prosthetic limb upright assembly comprises a base, adapted to fit within the distal end of the socket; and an interface cushion, having a proximate end adapted to abut the wearer's residual limb, mounted on the base. The base includes interconnection components in its distal end such that the modular interface connector can be releasably mounted within the distal end of the socket and such that the upright assembly can be releasably mounted to the distal end of the base and, in turn, to the distal end of the socket. When mounted in the socket, the interface connector provides an air-tight seal between the base and the inner surface of the socket to facilitate a suction fit of the wearer's residual limb in the socket.