Drainage stent and associated method
First Claim
1. An implantable device for facilitating fluid flow between a branch of a bifurcated lumen and an interior region of the implantable device, the implantable device comprising:
- a scaffolding of struts formed from a tube of memory material and having a proximal end and a distal end, wherein the scaffolding comprises a plurality of interconnected legs and connectors, and wherein the legs extend in circumferential rows about the implantable device, and the connectors extend longitudinally between adjacent rows;
a cover applied to and between the scaffolding of struts to define an interior region within the scaffolding; and
at least one drainage region having a proximal end, a distal end, wherein the drainage region is offset from the proximal and distal ends of the scaffolding to facilitate fluid flow between the branch of the bifurcated lumen and the interior region of the scaffolding, and wherein the drainage region comprises;
at least one drainage hole defined between the scaffolding and through the cover such that fluid is capable of flowing through the drainage hole, wherein the at least one drainage hole has a periphery that follows a contour defined by a first plurality of interconnected legs of adjacent rows of the scaffolding and a first pair of connectors extending therebetween, such that all the legs and connectors are located outside of the periphery of the at least one drainage hole; and
a plurality of supplemental drainage holes defined between the scaffolding and through a portion of the cover bounded by a second plurality of interconnected legs of adjacent rows of the scaffolding and a second pair of connectors extending therebetween, wherein each of the supplemental drainage holes has a periphery spaced from the second plurality of interconnected legs of adjacent rows and the second pair of connectors extending therebetween, such that fluid is capable of flowing through each of the plurality of supplemental drainage holes.
3 Assignments
0 Petitions
Accused Products
Abstract
A stent for facilitating flow between a branch of a bifurcated lumen and an interior region of the stent is provided. The stent includes proximal and distal ends and an interior region defined therethrough. The stent typically includes scaffolding having a cover applied thereto. The stent also includes at least one drainage region having at least one drainage hole defined between the scaffolding and through the cover such that fluid is capable of flowing through the drainage holes. The drainage region is typically offset from the proximal and/or distal end to facilitate fluid flow between the branch of the bifurcated lumen and the interior region of the stent.
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Citations
23 Claims
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1. An implantable device for facilitating fluid flow between a branch of a bifurcated lumen and an interior region of the implantable device, the implantable device comprising:
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a scaffolding of struts formed from a tube of memory material and having a proximal end and a distal end, wherein the scaffolding comprises a plurality of interconnected legs and connectors, and wherein the legs extend in circumferential rows about the implantable device, and the connectors extend longitudinally between adjacent rows; a cover applied to and between the scaffolding of struts to define an interior region within the scaffolding; and at least one drainage region having a proximal end, a distal end, wherein the drainage region is offset from the proximal and distal ends of the scaffolding to facilitate fluid flow between the branch of the bifurcated lumen and the interior region of the scaffolding, and wherein the drainage region comprises; at least one drainage hole defined between the scaffolding and through the cover such that fluid is capable of flowing through the drainage hole, wherein the at least one drainage hole has a periphery that follows a contour defined by a first plurality of interconnected legs of adjacent rows of the scaffolding and a first pair of connectors extending therebetween, such that all the legs and connectors are located outside of the periphery of the at least one drainage hole; and a plurality of supplemental drainage holes defined between the scaffolding and through a portion of the cover bounded by a second plurality of interconnected legs of adjacent rows of the scaffolding and a second pair of connectors extending therebetween, wherein each of the supplemental drainage holes has a periphery spaced from the second plurality of interconnected legs of adjacent rows and the second pair of connectors extending therebetween, such that fluid is capable of flowing through each of the plurality of supplemental drainage holes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for manufacturing an implantable device for facilitating fluid flow between a branch of a bifurcated lumen and an interior region of the implantable device, the method comprising:
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forming a scaffolding from a tube of memory material having a proximal end and a distal end, wherein the scaffolding comprises a plurality of interconnected legs and connectors, a plurality of the connectors comprising a pair of curved inclined sections; and wherein the legs extend in circumferential rows about the implantable device, and the connectors extend longitudinally between adjacent rows; applying a cover to and between the scaffolding of struts to define an interior region within the scaffolding; and defining at least one drainage region offset from the proximal and distal ends of the scaffolding to facilitate fluid flow between the branch of the bifurcated lumen and the interior region of the implantable device, and wherein the drainage region comprises; at least one drainage hole defined between the scaffolding and through the cover such that fluid is capable of flowing through the drainage hole, wherein the at least one drainage hole has a periphery that follows a contour defined by a first plurality of interconnected legs of adjacent rows of the scaffolding and a first pair of connectors extending therebetween, such that all the legs and connectors are located outside of the periphery of the at least one drainage hole; and a plurality of supplemental drainage holes defined between the scaffolding and through a portion of the cover bounded by a second plurality of legs of adjacent rows of the scaffolding and a second pair of connectors extending therebetween, wherein each of the supplemental drainage holes has a periphery spaced from the second plurality of legs of adjacent rows and the second pair of connectors extending therebetween, such that fluid is capable of flowing through each of the plurality of supplemental drainage holes. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. An implantable device for facilitating fluid flow between a branch of a bifurcated lumen and an interior region of the implantable device, the implantable device comprising:
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a scaffolding of struts formed from a tube of memory material and having a proximal end and a distal end, wherein the scaffolding comprises a plurality of interconnected legs and connectors, and wherein the legs extend in rows circumferentially about the implantable device, and the connectors extend longitudinally between adjacent rows, a plurality of the connectors curving continuously along their length; a cover applied to and between the scaffolding of struts to define an interior region within the scaffolding; at least one drainage hole defined between the scaffolding and through the cover such that fluid is capable of flowing through the drainage hole, wherein the at least one drainage hole has a periphery that follows a contour defined by a first plurality of interconnected legs of adjacent rows of the scaffolding and a first pair of connectors extending therebetween, such that all the legs and connectors are located outside of the periphery of the at least one drainage hole; and a plurality of supplemental drainage holes defined between the scaffolding and through a portion of the cover bounded by a second plurality of interconnected legs of adjacent rows of the scaffolding and a second pair of connecters extending therebetween, wherein each of the supplemental drainage holes has a periphery spaced from the second plurality of legs of adjacent rows and the second pair of connecters extending therebetween, such that fluid is capable of flowing through each of the supplemental drainage holes and such that all the legs and connectors are located outside of a periphery of each of the supplemental drainage holes, wherein each of the supplemental drainage holes is configured to facilitate fluid flow between the branch of the bifurcated lumen and the interior region of the scaffolding, wherein the plurality of supplemental drainage holes are spaced apart from one another about the entire circumference of the scaffolding and are offset a plurality of rows of legs from the distal end of the scaffolding to define a gap therebetween such that no drainage holes are defined in the gap. - View Dependent Claims (21, 22, 23)
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Specification