A tubular prosthesis that includes a scaffolding formed by at least one scaffolding filament; a cover; and at least one controlled ingrowth feature constructed and arranged to abut an inner surface of a lumen wall when the prosthesis is implanted in the body lumen. The controlled ingrowth feature may extend inwards or outwards from the prosthesis outer surface. The controlled ingrowth feature may be formed by a scaffolding filament; by a separate filament; by the cover; and combinations thereof.

A tubular prosthesis that includes a scaffolding formed by at least one scaffolding filament; a cover; and at least one controlled ingrowth feature constructed and arranged to abut an inner surface of a lumen wall when the prosthesis is implanted in the body lumen. The controlled ingrowth feature may extend inwards or outwards from the prosthesis outer surface. The controlled ingrowth feature may be formed by a scaffolding filament; by a separate filament; by the cover; and combinations thereof.

A stent 10 includes corrugated pattern bodies 11 and connection elements 12. A corrugated pattern is formed of corrugated units 14, corrugated unit 14 including a first stem 15, a second stem 16, a third stem 17, a first top portion 18 coupling a first end portion 15a of the first stem 15 and a first end portion 16a of the second stem 16, and a second top portion 19 coupling a second end portion 16b of the second stem 16 and a first end portion 17a of the third stem 17. A second end portion 17b of the third stem 17 is connected to a second end portion 15b of the first stem 15 in another corrugated unit adjacent to corrugated unit. A first end portion 12a of connection element 12 is connected to the first top portion 18 of one of adjacent ones of the corrugated units 14, and a second end portion 12b of connection element 12 is connected to the second end portion 15b of the other one of the adjacent ones of the corrugated units 14.

Provided is a segmented covered stent (100), which includes a covering membrane (120) and a support frame (110) fixed to the covering membrane (120). The support frame (110) comprises an annular structure (1200) and a spiral structure (1300), wherein the annular structure (1200) is formed by a plurality of first wave-shaped units (1100) connected end to end; and the spiral structure (1300) is a tubular structure formed by a plurality of second wave-shaped units (1400) connected end to end and arranged in a continuous spiral manner, and the overall extension direction of the spiral structure (1300) is parallel to the support frame (110). A method for preparing the segmented covered stent (100) is further provided.

A medical device is disclosed and may have a spiral shape structure that can function as a stent, such as a flow diversion stent to treat aneurysms. The medical device may have a spiral shape structure that can function as an occlusive device, for instance to occlude aneurysms. The medical device may include a shape setting structure to selectively adjust the shape of the medical device.

A medical device is disclosed and may have a spiral shape structure that can function as a stent, such as a flow diversion stent to treat aneurysms. The medical device may have a spiral shape structure that can function as an occlusive device, for instance to occlude aneurysms. The medical device may include a shape setting structure to selectively adjust the shape of the medical device.

A stent includes a main body having a plurality of rings that form a helix. Each of the plurality of rings includes a plurality of skewed v-shaped elements that each have a first leg and a second leg that is longer than the first leg. The stent further includes a first end ring and a second end ring positioned to an opposite side of the main body from the first end ring. Each of the plurality of rings of the main body is angled with respect to the first end ring and the second end ring. The stent further includes a first transitional region for connecting the first end ring to the main body, and a second transitional region for connecting the second end ring to the main body.

A stent includes a main body having a plurality of rings that form a helix. Each of the plurality of rings includes a plurality of skewed v-shaped elements that each have a first leg and a second leg that is longer than the first leg. The stent further includes a first end ring and a second end ring positioned to an opposite side of the main body from the first end ring. Each of the plurality of rings of the main body is angled with respect to the first end ring and the second end ring. The stent further includes a first transitional region for connecting the first end ring to the main body, and a second transitional region for connecting the second end ring to the main body.

An illustrative stent may comprise an elongated tubular member having a first end and a second end and an intermediate region disposed therebetween. The elongated tubular member configured to move between a collapsed configuration and an expanded configuration. The elongated tubular member may comprise at least one twisted filament, such as a knitted filament having a plurality of twisted knit stitches with intermediate rung portions extending between adjacent twisted knit stitches, or a plurality of helical filaments twisted with a plurality of longitudinal filaments.

An illustrative stent may comprise an elongated tubular member having a first end and a second end and an intermediate region disposed therebetween. The elongated tubular member configured to move between a collapsed configuration and an expanded configuration. The elongated tubular member may comprise at least one twisted filament, such as a knitted filament having a plurality of twisted knit stitches with intermediate rung portions extending between adjacent twisted knit stitches, or a plurality of helical filaments twisted with a plurality of longitudinal filaments.