Patent ID: 8083806

Claim:
A multi-component, absorbable, fiber-reinforced, radiopaque, and non-migrating stent for a urinogenital conduit, the stent comprising: a compliant and hydrowettable tubular matrix comprising an absorbable copolyester having a hydrophilic polymeric additive, wherein the stent has a main central body and at least one flexible position-retaining end extending from the main central body, the at least one position-retaining end having a loop shape with an open end parallel to a longitudinal axis of the main central body after insertion in the urinogenital conduit; the matrix reinforced with and impregnating a knitted core, the knitted core comprising a load-bearing, radiopaque monofilament coil and a knitted mesh disposed over the coil; the coil comprising an absorbable polymeric radiopaque hybrid composition comprising radiopaque microparticles dispersed in a crystalline polyaxial copolyester, the copolyester derived from glycolide and at least one additional monomer selected from the group consisting of l-lactide, trimethylene carbonate, ε-caprolactone, p-dioxanone, 1,5-dioxepan-2-one, and a morpholinedione; the knitted mesh comprising an absorbable polymeric multifilament yarn comprising a crystalline polyaxial copolyester, the copolyester derived from glycolide and at least one additional monomer selected from the group consisting of l-lactide, trimethylene carbonate, ε-caprolactone, p-dioxanone, 1,5-dioxepan-2-one, and a morpholinedione; and wherein the stent exhibits one- to ten-week, radiomodulated absorption and strength retention profiles; and wherein the matrix and knitted core alone are capable of maintaining patency of a urinogenital conduit.