Selectively thinned coiled-sheet stents and methods for...

Details Selectively thinned coiled-sheet stents and methods for... Selectively thinned coiled-sheet stents and methods for...

A - Human Necessities

61

F

A61F 2/06 (2006.01) A61F 2/00 (2006.01)

Patent

CA 2425966

A coiled-sheet stent includes a tubular body having a longitudinal axis, a circumference, and a thickness, and having a size configured for introduction into a body lumen. The tubular body includes a plurality of cylindrical bands, each band including a generally zig-zag pattern defined by a series of sequential arcuate-shaped diagonal elements connected to one another and extending about the circumference. Longitudinal connectors extend between adjacent cylindrical bands. Slots are formed in the tubular body oriented about the circumference of the tubular body, thereby providing reduced thickness regions in the longitudinal connectors that have a thickness that is substantially smaller than the thickness of the cylindrical bands of the tubular body.

Ce stent du type ruban spiralé comprend un corps tubulaire possédant un axe longitudinal, une circonférence et une épaisseur, et il est dimensionné pour être introduit dans une lumière corporelle. Ce corps tubulaire comprend plusieurs bandes cylindriques, chacune comportant un motif généralement en zigzag, défini par une série d'éléments diagonaux de forme arquée reliés les uns aux autres et s'étendant autour de la circonférence, des raccords longitudinaux s'étendant entre des bandes cylindriques adjacentes. Des fentes sont formées dans le corps tubulaire, orientées autour de la circonférence de ce corps, de manière à offrir des régions d'épaisseur moindre dans les connecteurs longitudinaux possédant une épaisseur sensiblement inférieure à celle des bandes cylindriques du corps tubulaire.

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