Abstract: Embodiments are directed to devices configured to assist the flow of fluids in the body. The device comprises a covering for placing on the skin of a patient having protrusions which can contact the skin. The protrusions have a base proximal to a surface of the covering and an outer edge distal to the surface of the covering. Protrusions can be configured in an array, in a line perpendicular to desired fluid flow or in a spiral configuration, such that fluid flow is enhanced in the appropriate direction. The device can be configured as a prosthesis, an orthotic, a liner for a prosthesis or orthotic, or a wrap or covering that is positioned around a body part. The body part can be part of a lower limb, part of an upper limb, or other body part.

Abstract: A method and apparatus for making prosthetic socket preforms, a method for making prosthetic sockets, and a socket attachment component are disclosed. The method of making preforms of the present invention involves the blowmolding of memory plastics with a cooling step prior to parison expansion to enhance the molded-in stresses of the resulting preform. The blowmolding apparatus of the present invention comprises two mold halves having specially designed knifing sections and a modified blow pin. The method for making prosthetic sockets involves heat- and vacuum-forming memory plastic preforms over a positive cast of a residual limb after preheating of the cast to prevent heat-sinking. The socket attachment component disclosed is adapted for molding with a prosthetic socket during heat- and vacuum-forming, is configured to receive a sleeve attachment shaft, and possesses an integral male member for attaching the component and socket to an artificial limb shaft using bolts or screws.