Patent ID: 11938045
Assignee: FRAUNHOFER GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. A system for use on a residual limb, the system comprising:
a liner sock configured to be worn on and contact the residual limb, the liner sock comprising:
air-permeable textile forming a substantially cylindrical portion that is closed on a distal end and open on a proximal end and comprising an internal surface and an external surface; and
a friction-interface material that covers only a portion of the internal surface of the air-permeable textile, wherein the friction-interface material defines an inner surface of the liner sock such that, when worn on the residual limb, the friction-interface material directly contacts a surface of the residual limb, and an uncovered portion of the air-permeable textile which the friction-interface material does not cover allows air to pass between an external environment of the liner sock and the surface of the residual limb, wherein the friction-interface material comprises a plurality of strips that are spaced from each other to define the uncovered portion of the air-permeable textile therebetween,
wherein the air permeable textile comprises:
a first section comprising unidirectional-stretch textile; and
at least one second section comprising bidirectional-stretch textile,
wherein the first section is fixed to the at least one second section by at least one seam, and
wherein the friction-interface material covers the at least one seam on the internal surface of the air-permeable textile.