STENT WITH OFFSET CELL GEOMETRY

• US 20150105853A1
• Filed: 09/30/2014
• Published: 04/16/2015
• Est. Priority Date: 09/17/2001
• Status: Active Grant

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: Covidien LP (Medtronic Plc)
• Inventors: Lee, Nathan, Thompson, Paul
• Granted Patent: US 9,707,111 B2
• Time in Patent Office: Days
• US Class Current: 623/1.16
• 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 2002/91508 the meander having a difference in amplitude along the band
• CPC Class Codes: A61F 2002/91533 characterised by the phase between adjacent bands
• CPC Class Codes: A61F 2002/91558 connected peak to peak
• CPC Class Codes: A61F 2002/91583 by a bridge, whereby at least one of its ends is connected along the length of a strut between two consecutive apices within a band

Abstract

A stent defining a longitudinal axis is disclosed. A plurality of circumferential support structures are spaced-apart along the longitudinal axis. At least some of the circumferential support structures are interconnected by connection members that extend generally in a circumferential direction.

Claims

1-20. -20. (canceled)

21. A stent comprising:

a stent body expandable between an un-deployed orientation and a deployed orientation, the stent body having a circumference and a longitudinal axis extending between first and second open ends;

the stent body having a plurality of circumferential support structures which extend generally about the circumference of the stent, each circumferential support structure including longitudinal struts interconnected at apex portions to define an undulating pattern; and

a plurality of connecting struts interconnecting at least some of the adjacent circumferential support structures, at least one of the connecting struts having a width greater than a width of at least one of the longitudinal struts.

22. The stent of claim 21, wherein the at least one of the connecting struts has a width at least twice as great as a width of the at least one of the longitudinal struts.

23. The stent of claim 22, wherein the at least one of the connecting struts has a width at least five times as great as a width of the least one of the longitudinal struts.

24. The stent of claim 21, wherein each connecting strut has a width greater than the width of each longitudinal strut.

25. The stent of claim 21, wherein at least some of the connecting struts are dimensioned to connect select apex portions of adjacent circumferential support structures, the select apex portions circumferentially offset with respect to each other.

26. The stent of claim 25, wherein the connecting struts are substantially linear.

27. The stent of claim 26, wherein the connecting struts are dimensioned to extend perpendicular to the longitudinal axis of the stent body.

28. The stent of claim 26, wherein the connecting struts are dimensioned to extend in oblique relation to the longitudinal axis of the stent body.

29. The stent of claim 25, wherein the select apex portions of adjacent circumferential support structures are configured to longitudinally overlap when in the un-deployed orientation.

30. The stent of claim 21, wherein each circumferential support structure includes pairs of longitudinal struts alternating with single longitudinal struts.

31. The stent of claim 30, wherein the pairs of longitudinal struts are longer than the single longitudinal struts.

32. The stent of claim 30, wherein the pairs of longer longitudinal struts are interconnected by the connecting struts.

33. A stent comprising:

a stent body expandable between an un-deployed orientation and a deployed orientation, the stent body having a circumference and a longitudinal axis extending between first and second open ends;

the stent body having a plurality of circumferential support structures which extend generally about the circumference of the stent, each circumferential support structure including longitudinal struts interconnected at apex portions to define an undulating pattern;

at least some of the apex portions of adjacent circumferential support structures being configured to longitudinally overlap when in the un-deployed orientation thus providing longitudinal overlap; and

a plurality of connecting struts interconnecting at least some of the adjacent circumferential support structures, the connecting struts extending generally circumferentially between the apex portions that longitudinally overlap, the connecting struts each defining a width greater than a width defined by each of the longitudinal struts.

34. The stent of claim 33, wherein the connecting struts extending between the apex portions that longitudinally overlap are angled at an oblique angle with respect to the circumference of the stent body.

35. The stent of claim 33, wherein the connecting struts extending between the apex portions that longitudinally overlap are generally perpendicular to the longitudinal axis of the stent body.