An implantable device (100; 200; 300; 500) having a generally cylindrical shape, configured to be disposed within a body lumen, the device comprising: a scaffolding of struts (110; 210), comprising: a plurality of annular segments (112; 512) disposed along the circumference of the cylindrical shape, the segments arranged in rows in the longitudinal direction of the cylindrical shape, each annular segment comprising a plurality of interconnected arms (114; 214; 514) with adjacent arms arranged at acute angles relative to each other; a plurality of connectors (120; 220; 520) extending between and interconnecting adjacent annular segments; a plurality of eyelets (236; 535) elongated in a circumferential direction of the cylindrical shape, the eyelets configured to receive a suture (135; 235), and the eyelets disposed adjacent a first longitudinal end of the cylindrical shape; a polymeric cover (130; 330) applied to and between the scaffolding of struts; and a valve (150; 250; 350 450) coupled to an inside diameter of the cylindrical shape, characterised in that the device defines a proximal zone (α), a transitional zone (β) and a valve zone (γ), the valve zone defining a location where the valve (150; 250; 350; 450) is located, the transitional zone being more compressible in a transverse direction than the valve zone, and the proximal zone being more compressible in the transverse direction than the transitional zone, wherein the proximal zone (α) is adjacent a first end of the cylindrical shape, the valve zone (γ) is adjacent a second end of the cylindrical shape, the transition zone (β) is located between the valve zone and the proximal zone a scaffolding of struts (110; 210), comprising: a plurality of annular segments (112; 512) disposed along the circumference of the cylindrical shape, the segments arranged in rows in the longitudinal direction of the cylindrical shape, each annular segment comprising a plurality of interconnected arms (114; 214; 514) with adjacent arms arranged at acute angles relative to each other; a plurality of connectors (120; 220; 520) extending between and interconnecting adjacent annular segments; a plurality of eyelets (236; 535) elongated in a circumferential direction of the cylindrical shape, the eyelets configured to receive a suture (135; 235), and the eyelets disposed adjacent a first longitudinal end of the cylindrical shape; a plurality of annular segments (112; 512) disposed along the circumference of the cylindrical shape, the segments arranged in rows in the longitudinal direction of the cylindrical shape, each annular segment comprising a plurality of interconnected arms (114; 214; 514) with adjacent arms arranged at acute angles relative to each other; a plurality of connectors (120; 220; 520) extending between and interconnecting adjacent annular segments; a plurality of eyelets (236; 535) elongated in a circumferential direction of the cylindrical shape, the eyelets configured to receive a suture (135; 235), and the eyelets disposed adjacent a first longitudinal end of the cylindrical shape; a polymeric cover (130; 330) applied to and between the scaffolding of struts; and a valve (150; 250; 350 450) coupled to an inside diameter of the cylindrical shape, characterised in that the device defines a proximal zone (α), a transitional zone (β) and a valve zone (γ), the valve zone defining a location where the valve (150; 250; 350; 450) is located, the transitional zone being more compressible in a transverse direction than the valve zone, and the proximal zone being more compressible in the transverse direction than the transitional zone, wherein the proximal zone (α) is adjacent a first end of the cylindrical shape, the valve zone (γ) is adjacent a second end of the cylindrical shape, the transition zone (β) is located between the valve zone and the proximal zone