Stent and method of using same
First Claim
1. A stent comprising a hollow, elongated body having a longitudinal axis of symmetry, said body being formed of a material having material areas and gaps between them so that after said stent is inserted into a lumen of an organ said stent can keep the lumen open while permitting tissue to grow round the stent with said body material comprising a plurality of elongated meander paths arranged adjacent one another successively over the surface of said body, plural connecting parts extending between and connecting each two adjacent meander paths, said connecting parts being relatively short in length as compared to the width of each of the two associated elongated meander paths, and said connecting parts between each two adjacent meander paths being spaced from one another along the length of the adjacent, connected meander paths by at least two non-interconnected meanderings of each meander path.
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Accused Products
Abstract
A stent, which has an easier and better bendability and higher flexibility than known stents, has several meander paths (2,2a,2b,2c) successively arranged in the axial direction (A) and extending over its circumference (U), and between axially facing areas (3,3a,3'"'"'a,3b), interconnected by connecting areas (4,4a,4b,4c), of the meander paths (2,2a,2b,2c) in the circumferential direction (U) there are at least two facing, non-interconnected areas (3,3a,3'"'"'a,3b) of each meander path (2,2a,2b,2c)
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Citations
13 Claims
- 1. A stent comprising a hollow, elongated body having a longitudinal axis of symmetry, said body being formed of a material having material areas and gaps between them so that after said stent is inserted into a lumen of an organ said stent can keep the lumen open while permitting tissue to grow round the stent with said body material comprising a plurality of elongated meander paths arranged adjacent one another successively over the surface of said body, plural connecting parts extending between and connecting each two adjacent meander paths, said connecting parts being relatively short in length as compared to the width of each of the two associated elongated meander paths, and said connecting parts between each two adjacent meander paths being spaced from one another along the length of the adjacent, connected meander paths by at least two non-interconnected meanderings of each meander path.
- 11. A method of keeping open a lumen of an organ comprising providing a stent having a hollow, elongated body with a longitudinal axis of symmetry and inserting said stent into said lumen of said organ to keep the lumen open, wherein said stent body is formed of a material having material areas and gaps between them so that after said stent is inserted into said lumen said stent can keep the lumen open while permitting tissue to grow round the stent with said body material comprising a plurality of elongated meander paths arranged adjacent one another successively over the surface of said body, plural connecting parts extending between and connecting each two adjacent meander paths, said connecting parts being relative short in length as compared to the width of each of the two associated elongated meander paths, and said connecting parts between each two adjacent meander paths being spaced from one another along the length of the adjacent, connected meander paths by at least two non-interconnected meanderings of each meander path whereby said stent has a relatively high bending flexibility such that when it is bent at right angles to its longitudinal axis the stent does not have its cross-sectional contour deformed.
Specification