Advanced endovascular graft
AssigneeTriVascular, Inc.
InventorMichael V. Chobotov
Life of this patent
Estimating the term…
Abstract
An endovascular graft includes a tubular graft body section; a radially expandable stent extending from and affixed to the graft body section. The stent includes a proximal end, a distal end and a serpentine ring configuration having a plurality of struts and apices. The stent further includes at least one barb integrally formed as an extension of each strut extending distally from a position on the strut that is distal of an adjacent proximal apex, where the at least one integrally formed barb is formed as the extension of each strut with no joint or other connection thereat.
Claims16
An endovascular graft, comprising:
- a tubular graft body section;
- a radially expandable stent extending from and affixed to the graft body section, said stent having a proximal end, a distal end and a serpentine ring configuration having a plurality of struts and apices;
- and
- at least one barb integrally formed as an extension of each strut extending distally from a position on the strut that is distal of an adjacent proximal apex;
- wherein said at least one integrally formed barb is formed as said extension of said each strut with no joint nor other connection thereat;
- wherein said extension with no joint lacks a welded or brazed joint thereat;
- and wherein said other connection lacks a mechanical connection thereat;
- wherein the at least one barb has an elevation angle with respect to a longitudinal axis of a strut from which the barb extends of about 10 degrees to about 45 degrees;
- wherein the at least one barb has a length of about 1 mm to about 5 mm;
- wherein the radially expandable stent comprises a self expanding stent;
- and
- wherein the self-expanding stent comprises a NiTi superelastic alloy.
A radially expandable stent, comprising:
- a proximal end, a distal end, a serpentine ring configuration having a plurality of struts and apices;
- and
- a barb integrally formed as an extension of each strut extending distally from a position on the strut that is distal of an adjacent proximal apex;
- wherein said integrally formed barb is formed as said extension of said each strut with no joint nor other connection thereat;
- wherein said extension with no joint lacks a welded or brazed joint thereat;
- and wherein said other connection lacks a mechanical connection thereat;
- wherein the barb has an elevation angle with respect to a longitudinal axis of a strut from which the barb extends of about 10 degrees to about 45 degrees;
- wherein the barb has a length of about 1 mm to about 5 mm;
- wherein the radially expandable stent comprises a self expanding stent;
- and
- wherein the self-expanding stent comprises a NiTi superelastic alloy.
Dependencies are inferred from the claim text.