Patent ID: 8211187
Filing Date: 2012-07-03
Classification: A61F

Abstract:
1. A prosthetic limb assembly comprising: a flexible liner shaped to accept a portion of a patient's residual limb, the flexible liner including an interior and an exterior; a plunger pin mounted to a distal end of the flexible liner, the plunger pin including at least one through passage providing fluidic communication between a location proximate the exterior of the liner and a distal end of the plunger pin; a socket shaped to receive the liner and the patient's residual limb, the socket including a socket interior, a proximal opening for receiving the residual limb, and a distal end including a through hole; a locking mechanism mounted within the distal end of the socket and including a central opening sized to receive the plunger pin, the locking mechanism releasably engaging the plunger pin when the residual limb and the liner are inserted into the socket; a manifold mounted to the exterior of the distal end of the socket, the manifold including a spool valve arranged to selectively vent the cavity to an ambient atmosphere via the through passage and a vent hole, the spool valve being axially slidable between an open position and a shut position within a channel provided in a valve housing integrally formed with the manifold to selectively vent the cavity via the vent hole and fluidicly isolate the cavity from the vent hole; wherein the fitting is configured to be connected to a vacuum pump for withdrawing air from the interior of the socket via the through passage of the plunger pin, the cavity, and the through passage of the manifold.