Endoprostheses for peripheral arteries and other body vessels

• US 7,867,273 B2
• Filed: 06/27/2007
• Issued: 01/11/2011
• Est. Priority Date: 06/27/2007
• Status: Expired due to Fees

• Current Assignee: Abbott Laboratories
• Original Assignee: Abbott Laboratories
• Inventors: Shrivastava, Sanjay, Pappas, Jeffrey
• Primary Examiner(s): GHERBI, SUZETTE JAIME J
• Application Number:
  US11/769,410
• Publication Number:
  US 20090005856A1
• Time in Patent Office: 1,294 Days
• Field of Search: 623 111- 136
• US Class Current: 623/1.15
• CPC Class Codes: A61F 2/91 made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes
• CPC Class Codes: A61F 2/915 with bands having a meander structure, adjacent bands being connected to each other
• CPC Class Codes: A61F 2002/91525 within the whole structure different bands showing different meander characteristics, e.g. frequency or amplitude
• CPC Class Codes: A61F 2002/91533 characterised by the phase between adjacent bands
• CPC Class Codes: A61F 2002/9155 Adjacent bands being connected to each other
• CPC Class Codes: A61F 2002/91575 connected peak to trough

Abstract

An endoprostheses for implanting in a body lumen, such as a coronary artery, peripheral artery, or other body lumen includes a plurality of elongate strut members spaced apart and extending along a longitudinal axis, each elongate strut member having a plurality of alternating peaks and valley. At least one flexible connecting link connects each elongate strut member to an adjacent elongate strut member. The elongate strut members and connecting links forming a generally tubular stent body having a first delivery diameter and a second implanted diameter. The positioning of the connecting links along the stent body produces desired stent performance characteristics.

Claims

1. A stent, comprising:

a plurality of elongate strut members spaced apart, each elongate strut member extending lengthwise to define a longitudinal axis, each elongate strut member having a plurality of alternating peaks and valley; and

at least one flexible connecting link connecting each elongate strut member to an adjacent elongate strut member, the elongate strut members and connecting links forming a generally tubular stent body having a first delivery diameter and a second implanted diameter, some of the connecting links being disposed adjacent to each other circumferentially along the tubular stent body to form at least one continuous helix pattern which extends along the longitudinal length of the tubular member, wherein at least one connecting link attaches each elongate strut member to an adjacent elongate strut member so that at least a portion of the connecting link is positioned within the peak as it attaches that peak to a peak of an adjacent elongate strut member.

2. The stent of claim 1, wherein a plurality of connecting links connect each elongate strut member to an adjacent elongate strut member.

3. The stent of claim 2, wherein some the connecting links are disposed adjacent to each other circumferentially along the tubular stent body to form a second continuous helix pattern which extends along the longitudinal length of the tubular member.

4. The stent of claim 1, wherein each of the connecting links has a first end attached to the peak of an elongate strut member and a second end attached to the peak of an adjacent elongate strut member.

5. The stent of claim 1, wherein each of the plurality of elongate strut members have a proximal end and a distal end, the proximal ends of the elongate strut members being attached to form the proximal end of the tubular stent body and the distal ends of the elongate strut members being attached to form the distal end of the tubular stent body.

6. The stent of claim 1, wherein some of the first ends of the connecting links are attached to the same peak as the second ends of adjacent connecting links to form the helix pattern on the stent body.

7. The stent of claim 1, wherein the peaks and valleys of each elongate strut member are in phase with the peaks and valleys of adjacent elongate members.

8. A stent, comprising:

a plurality of elongate strut members spaced apart, each elongate strut member extending lengthwise to define a longitudinal axis, each elongate strut member having a plurality of alternating peaks and valley; and

at least one connecting link connecting an elongate strut member to an adjacent elongate strut member, the elongate strut members and connecting links forming a generally tubular member having a first delivery diameter and a second implanted diameter, the connecting links being disposed laterally adjacent to each other about the tubular stent, wherein at least one connecting link attaches each elongate strut member to an adjacent elongate strut member so that at least a portion of the connecting link is positioned within the peak as it attaches that peak to a peak of an adjacent elongate strut member.

9. The stent of claim 8, wherein a plurality of connecting links connect each elongate strut member to an adjacent strut member, some of the connecting links being disposed laterally adjacent to each other along the tubular stent body to form a first set of connecting links and some of the connecting links being disposed laterally adjacent to each other along the tubular stent body to form a second set of connecting links.

10. The stent of claim 8, wherein each of the connecting links have a first end attached to the peak of an elongate strut member and a second end attached to the peak of an adjacent elongate strut member.

11. The stent of claim 10, wherein some of the peaks of each elongate strut member have a first end of a connecting link attached thereto and a second end of adjacent connecting link attached thereto.

12. The stent of claim 8, wherein the peaks and valleys of each elongate strut member are in phase with the peaks and valleys of adjacent elongate members.

13. The stent of claim 8, further including a plurality of connecting links connecting each elongate strut member to an adjacent strut member, some of the connecting links being disposed laterally adjacent to each other along the tubular stent body to form a set of connecting links, wherein at least two sets of connecting links are formed on the stent body.

14. The stent of claim 13, wherein each connecting link attaches a peak of an elongate strut member to a peak of an adjacent elongate strut member and at least one valley portion on each elongate strut member is disposed between sets of connecting links.

15. A stent, comprising:

a plurality of elongate strut members spaced apart, each elongate strut member extending lengthwise to define a longitudinal axis, each elongate strut member having a plurality of alternating peaks and valley; and

at least one connecting link connecting an elongate strut member to an adjacent elongate strut member, the elongate strut members and connecting links forming a generally tubular stent body having a first delivery diameter and a second implanted diameter, the connecting links on alternating elongated strut members being disposed laterally adjacent to each other about the stent body, wherein at least one connecting link attaches each elongate strut member to an adjacent elongate strut member so that at least a portion of the connecting link is positioned within the peak as it attaches that peak to a peak of an adjacent elongate strut member.

16. The stent of claim 15, wherein a plurality of connecting links connect each elongate strut member to an adjacent strut member, some of the connecting links being disposed laterally adjacent to each other along the tubular stent body to form a first set of connecting links and some of the connecting links being disposed laterally adjacent to each other along the tubular stent body to form a second set of connecting links.

17. The stent of claim 15, wherein each of the connecting links has a first end attached to the peak of an elongate strut member and a second end attached to the peak of an adjacent elongate strut member.

18. The stent of claim 17, wherein some of the peaks of each elongate strut member have a first end of a connecting link attached thereto and a second end of adjacent connecting link attached thereto.

19. The stent of claim 15, wherein the peaks and valleys of each elongate strut member are in phase with the peaks and valleys of adjacent elongate members.

20. The stent of claim 15, further including a plurality of connecting links connecting each elongate strut member to an adjacent strut member, some of the connecting links being disposed laterally adjacent to each other along the tubular stent body to form a set of connecting links, wherein at least two sets of connecting links are formed on the stent body.

21. A stent, comprising:

a plurality of elongate strut members spaced apart, each elongate strut member extending lengthwise to define a longitudinal axis, each elongate strut member having a plurality of alternating peaks and valley; and

a plurality of connecting links connecting each elongate strut member to an adjacent elongate strut member, the elongate strut members and connecting links forming a generally tubular stent body having a first delivery diameter and a second implanted diameter, some of the connecting links being disposed laterally adjacent to each other along the tubular stent body to form a set of connecting links, wherein at least two sets of connecting links are formed on the stent body and each connecting link attaches a peak of an elongate strut member to a peak of an adjacent elongate strut member and at least one valley portion on each elongate strut member is disposed between sets of connecting links.

22. A composite stent, comprising:

a plurality of elongate strut members spaced apart, each elongate strut member extending lengthwise to define a longitudinal axis, each elongate strut member having a plurality of alternating peaks and valley; and

a plurality of connecting links connecting each elongate strut member to an adjacent elongate strut member, the elongate strut members and connecting links forming a generally tubular stent body having a first delivery diameter and a second implanted diameter, wherein the connecting links are disposed on the stent body to create at least two stent segments, each stent segment having a particular pattern of connecting links disposed circumferentially along the stent body, wherein at least one connecting link attaches each elongate strut member to an adjacent elongate strut member so that at least a portion of the connecting link is positioned within the peak as it attaches that peak to a peak of an adjacent elongate strut member.

23. The stent of claim 22, wherein the pattern of connecting links are selected from the group of connecting patterns consisting of (a) connecting links disposed adjacent to each other circumferentially along the tubular stent body to form at least one continuous helix pattern which extends along the longitudinal length of the tubular member, (b) connecting links disposed laterally adjacent to each other about the tubular stent body and (c) connecting links on alternating elongate strut members disposed laterally adjacent to each other about the tubular stent body.

24. The stent of claim 22, further including a plurality of connecting links connecting each elongate strut member to an adjacent strut member, some of the connecting links being disposed laterally adjacent to each other along the tubular stent body to form a set of connecting links, wherein at least two sets of connecting links are formed on the stent body.