Patent ID: 11918493
Assignee: NORTHWESTERN UNIVERSITY
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. A prosthetic liner apparatus for improving suspension and rotation control between a residual limb and a socket of a prosthesis, comprising:
a liner body having a shape configured to receive the residual limb and having an outer surface that fits within the socket;
a plurality of intermittent and incomplete raised elastomeric grips located on the outer surface of the liner body;
wherein at a proximal end of the liner body, the outer surface of the liner body includes at least an exposed smooth elastomeric region that fits within and seals with the socket;
wherein when the socket is subjected to passive suction or active vacuum, the raised elastomeric grips are held securely against the socket while the exposed smooth elastomeric region at the proximal end of the liner body seals to the socket; and
wherein the plurality of intermittent and incomplete raised elastomeric grips form a chevron pattern.