Suspension liner system with seal

A prosthesis system comprising:

• a prosthetic socket adapted to a shape of a residual limb;
• and
• a suspension liner sleeve adapted to provide an interface between the residual limb and the prosthetic socket, the suspension liner sleeve including:
• a flexible elongate, generally conical liner body portion formed from an elastomeric material, the body portion defining an interior surface and an exterior surface forming a liner profile between a distal end area and a proximal end area;
• and
• at least one seal protruding circumferentially about and radially outward a distance from the liner profile, which liner profile is defined at areas outside the at least one seal, the at least one seal defining a sealing surface arranged to deflect toward the liner profile and take up a higher pressure when donned on a residual limb and engaged with an interior wall of the prosthetic socket.

A method of positively securing a residual limb within a prosthetic socket, the method comprising:

• donning a suspension liner on a distal end of the residual limb, the suspension liner including:
• a flexible elongate, generally conical liner body portion formed from an elastomeric material, the body portion defining an interior surface and an exterior surface forming a liner profile between a distal end area and a proximal end area;
• and
• at least one seal protruding circumferentially about and radially outward a distance from the liner profile, which liner profile is defined at areas outside the at least one seal, the at least one seal defining a sealing surface;
• and
• inserting the suspension liner and the distal end of the residual limb into a prosthetic socket such that the sealing surface of the at least one seal engages an interior wall of the prosthetic socket and deflects toward the liner profile to form a substantially air-tight seal between the prosthetic socket and the suspension liner.