Ventilated prosthetic liner

A prosthetic liner defining a proximal end and a distal end and forming an interior volume configured to receive a residual limb, the prosthetic liner comprising:

• a cushion layer disposed within a body region of the prosthetic liner, the cushion layer comprising a lattice structure including a plurality of layers defining interstices therebetween and being apertured such that the interstices extend through at least a portion of a thickness of the cushion layer to permit passage of air and moisture through the cushion layer, the cushion layer tapering in thickness within a distal taper region;
• a distal cup disposed at the distal end of the prosthetic liner, the distal cup having a proximal taper region corresponding to the distal taper region of the cushion layer, the distal cup and the cushion layer being secured together along the taper regions to form an integrated interface, the distal cup being non-apertured and comprising a solid, vapor- and moisture-impermeable structure continuous through the thickness of the distal cup to provide durability and sealing at the distal end;
• a seal region defined along an exterior surface of the prosthetic liner adjacent the integrated interface;
• and
• a seal secured to the exterior surface of the prosthetic liner at the seal region, the seal including a base portion that does not protrude beyond a periphery of the prosthetic liner while at least one other portion of the seal protrudes beyond the prosthetic liner.

A prosthetic liner defining a proximal end and a distal end and forming an interior volume configured to receive a residual limb, the prosthetic liner comprising:

• a facing layer defining an interior surface of the prosthetic liner and having a predetermined pattern of apertures extending through a thickness of the facing layer;
• a cushion layer disposed along an outward-facing side of the facing layer and comprising a lattice structure including a plurality of layers defining interstices therebetween, the interstices being larger than the apertures of the facing layer and arranged to permit transfer of air and moisture through the cushion layer;
• a distal cup secured to a distal portion of the cushion layer, the distal cup being non-apertured and comprising a solid, vapor- and moisture-impermeable structure continuous through the thickness of the distal cup to provide durability and sealing at the distal end;
• and a circumferential seal secured to an exterior surface of the prosthetic liner adjacent the distal cup, the circumferential seal extending outwardly beyond the exterior surface of the prosthetic liner.