Non-circular stent

• US 20070203566A1
• Filed: 01/30/2007
• Published: 08/30/2007
• Est. Priority Date: 09/03/2003
• Status: Abandoned Application

• Current Assignee: Bolton Medical, Inc. (Terumo Corporation)
• Original Assignee: Bolton Medical, Inc. (Terumo Corporation)
• Inventors: Berra, Humberto, Arbefeuille, Samuel
• Application Number:
  US11/699,700
• Publication Number:
  US 20070203566A1
• Time in Patent Office: Days
• US Class Current: 623/1.130
• CPC Class Codes: A61F 2/07 Stent-grafts
• CPC Class Codes: A61F 2/89 the wire-like elements comprising two or more adjacent rings flexibly connected by separate members
• CPC Class Codes: A61F 2/95 Instruments specially adapted for placement or removal of stents or stent-grafts
• CPC Class Codes: A61F 2/9517 handle assemblies therefor
• CPC Class Codes: A61F 2/966 with relative longitudinal movement between outer sleeve and prosthesis, e.g. using a push rod
• CPC Class Codes: A61F 2002/075 the stent being loosely attached to the graft material, e.g. by stitching
• CPC Class Codes: A61F 2002/828 Means for connecting a plurality of stents allowing flexibility of the whole structure
• CPC Class Codes: A61F 2002/9505 having retaining means other than an outer sleeve, e.g. male-female connector between stent and instrument
• CPC Class Codes: A61F 2002/9511 the retaining means being filaments or wires
• CPC Class Codes: A61F 2002/9528 for retrieval of stents
• CPC Class Codes: A61F 2002/9665 with additional retaining means
• CPC Class Codes: A61F 2210/0014 using shape memory or superelastic materials, e.g. nitinol
• CPC Class Codes: A61F 2230/0091 helically-coiled or spirally-coiled, i.e. having a 2-D spiral cross-section
• CPC Class Codes: A61F 2250/0098 radio-opaque, e.g. radio-opaque markers
• CPC Class Codes: A61M 25/0105 Steering means as part of the catheter or advancing means; Markers for positioning systems for detection of markers A61B
• CPC Class Codes: A61M 25/0108 using radio-opaque or ultrasound markers
• CPC Class Codes: Y10T 29/49799 Providing transitory integral holding or handling portion
• CPC Class Codes: Y10T 74/18392 Crank, pitman, and crank

Abstract

A vascular repair device includes a tubular graft body having a central longitudinal axis and a structural framework having at least one stent connected to the graft body in a partially compressed state, the stent having substantially linear struts and apices between adjacent pairs of the struts, each of the apices being in the same plane as the adjacent pairs of the struts. Also provided is a vascular repair device where the stent defines a cross plane orthogonal to the longitudinal axis and has a cross profile having a polygonal shape parallel to the cross-sectional plane and viewed along said longitudinal axis.

Claims

1. A vascular repair device, comprising:

a tubular graft body having a central longitudinal axis; and

a structural framework having at least one stent connected to said graft body in a partially compressed state, said stent having;

substantially linear struts; and

apices between adjacent pairs of said struts, each of said apices being in the same plane as said adjacent pairs of said struts.

2. The vascular repair device according to claim 1, wherein said at least one stent is a Z-stent.

3. The vascular repair device according to claim 1, wherein said stent has between 10 and 20 of said apices.

4. The vascular repair device according to claim 1, wherein:

said stent defines a cross profile orthogonal to said longitudinal axis; and

said cross profile has a polygonal shape selected from one of the group consisting of a decagon, an undecagon, a dodecagon, a tridecagon, a tetradecagon, a pentadecagon, a hexadecagon, a heptadecagon, a octadecagon, an enneadecagon, and an icosagon.

5. The vascular repair device according to claim 1, wherein said at least one stent is a plurality of stents.

6. The vascular repair device according to claim 5, wherein said plurality of stents are independently connected to said graft body.

7. The vascular repair device according to claim 6, wherein said plurality of stents are independently connected to said graft body without touching one another.

8. The vascular repair device according to claim 5, wherein said plurality of stents includes at least one bare stent.

9. The vascular repair device according to claim 1, wherein said at least one stent is sewn to said graft body.

10. The vascular repair device according to claim 9, wherein said graft body has exterior and interior surfaces and said at least one stent is sewn to at least one of said exterior surface and said interior surface.

11. The vascular repair device according to claim 5, wherein:

said stents define a proximal-most stent, a distal-most stent, and a bare stent connected to said interior surface; and

a remainder of said stents is connected to said exterior surface.

12. The vascular repair device according to claim 1, wherein said graft body has an internal diameter and said stent has an internal at-rest diameter larger than said internal diameter.

13. The vascular repair device according to claim 1, wherein the stent is a wire of a material having a shape memory.

14. The vascular repair device according to claim 13, wherein said material is selected from at least one of a group consisting of nitinol, stainless steel, biopolymers, cobalt chrome alloy, and titanium alloy.

21. The device according to claim 1, wherein said apices are at least one of curved and angular.

15. A vascular repair device, comprising:

a tubular graft body having a longitudinal axis; and

a structural framework having at least one stent connected to said graft body in a partially compressed state, said stent having a polygonal profile orthogonal to said longitudinal axis.

16. The vascular repair device according to claim 15, wherein:

said at least one stent is a Z-stent; and

said polygonal profile is a shape selected from one of the group consisting of a decagon, an undecagon, a dodecagon, a tridecagon, a tetradecagon, a pentadecagon, a hexadecagon, a heptadecagon, a octadecagon, an enneadecagon, and an icosagon.

17. A vascular repair device, comprising:

a tubular graft body having a longitudinal axis; and

a structural framework having at least one Z-stent connected to said graft body in a partially compressed state, said Z-stent having

substantially linear struts; and

apices between adjacent pairs of said struts, each of said apices being in the same plane as said adjacent pairs of said struts.

18. In a vascular repair device having a tubular graft body with a longitudinal axis, a structural framework comprising:

at least one stent connected to the graft body, said stent having a polygonal profile orthogonal to the longitudinal axis.

19. A vascular repair device, comprising:

a tubular graft body having a central longitudinal axis; and

a structural framework having at least one stent connected to said graft body, said stent defining;

a cross plane orthogonal to said longitudinal axis; and

a cross profile parallel to said cross-sectional plane and viewed along said longitudinal axis, said cross profile having a polygonal shape.

20. A vascular repair device, comprising:

a tubular graft body having a longitudinal axis; and

a structural framework having at least one Z-stent connected to said graft body in a partially compressed state, said Z-stent having a polygonal profile orthogonal to said longitudinal axis, said polygonal profile being a shape selected from one of the group consisting of a decagon, an undecagon, a dodecagon, a tridecagon, a tetradecagon, a pentadecagon, a hexadecagon, a heptadecagon, a octadecagon, an enneadecagon, and an icosagon.