US 11,730,612 B2
Prosthetic liner and method for making the same
Christophe Valois, Reykjavik (IS); Linda Ros Birgisdottir, Reykjavik (IS); Sigurdur Asgeirsson, Foothill Ranch, CA (US); and Stefan Orn Kristjansson, Reykjavik (IS)
Assigned to OSSUR ICELAND EHF, Reykjavik (IS)
Filed by Ossur Iceland ehf, Reykjavik (IS)
Filed on Dec. 5, 2019, as Appl. No. 16/704,419.
Claims priority of provisional application 62/775,611, filed on Dec. 5, 2018.
Prior Publication US 2020/0179140 A1, Jun. 11, 2020
Int. Cl. A61F 2/78 (2006.01); D04B 1/26 (2006.01); D06M 15/643 (2006.01)
CPC A61F 2/7812 (2013.01) [D04B 1/265 (2013.01); D06M 15/643 (2013.01); D10B 2403/0331 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A method for making a liner for prosthetic use, the liner having an exterior surface and an inner cavity forming an interior surface of the liner, the method comprising the steps of:
providing a textile sleeve having a first knit structure with interstices between yarns of said first knit structure, the textile sleeve defining an inner surface and an outer surface on an opposite side of the inner surface;
applying an uncured silicone material onto the inner surface of the textile sleeve and impregnating the interstices of the first knit structure of the textile sleeve, the uncured silicone material curable to at least 90% crosslinking within a range of about 120 to 210 seconds;
limiting impregnation of the uncured silicone material to only the inner surface of the textile sleeve, the outer surface devoid of the uncured silicone material;
curing the uncured silicone material to form an inner layer to the liner, the inner layer comprising silicone;
wherein the inner layer forms the interior surface of the liner and the outer surface of the textile sleeve forms the exterior surface of the liner, wherein a thickness of the liner from the interior surface of the liner to the inner surface of the textile sleeve consists of the silicone of the inner layer;
wherein the textile sleeve comprises a second knit structure comprising a plurality of circumferential bands formed by a coarser knit than the first knit structure.