Patent ID: 9498355
Filing Date: 2016-11-22
CPC Classification: A61F

Claim Text:
1. A suspension liner for a residual limb, the liner forming a closed-ended, tubular sleeve having a longitudinal axis, and defining along the axis a lower portion, an upper portion, and a center portion extending between the lower and upper portions, the liner divided along an anterior-posterior plane between anterior and posterior aspects, the liner comprising: a first layer having first and second surfaces spaced by a first thickness, the first surface forming a continuous circumferential internal surface of the liner and configured for contacting skin of a residual limb; a second layer having a first surface being adjacent and integrally joined to the first layer second surface, the second layer extending across the upper, central and lower portions of the anterior aspect of the liner, and terminating at the lower portion of the posterior aspect of the liner, a variable radial thickness tapers toward lateral and medial sides of the liner from the anterior aspect over a cross-sectional slice of the liner inwardly toward the longitudinal axis relative to an outer peripheral surface of the liner; wherein the second layer axially tapers in thickness along the posterior side above the lower portion of the liner toward the upper portion of the liner such that a length of the first layer extending beyond said tapered second layer thickness is devoid of the second layer thereagainst in the direction of the upper portion; wherein at the cross-sectional slice of the liner the radial taper of the second layer reduces to nothing toward the posterior side of the liner at the same point whereat the first layer is devoid of the second layer.