Intralumenally-implantable frames

• US 8,771,338 B2
• Filed: 06/24/2013
• Issued: 07/08/2014
• Est. Priority Date: 04/24/2003
• Status: Active Grant

• Current Assignee: Cook Medical Incorporated (Cook Group Incorporated)
• Original Assignee: Cook Medical Incorporated (Cook Group Incorporated)
• Inventors: Schaeffer, Darin G., Flagle, Jacob A., Garrison, Michael L., Case, Brian C., Hoffa, Andrew K.
• Primary Examiner(s): STEWART, JASON-DENNIS NEILKEN
• Application Number:
  US13/924,830
• Publication Number:
  US 20130289706A1
• Time in Patent Office: 379 Days
• Field of Search: 623/1.15, 623/1.16, 623/1.24, 623/1.26, 623 21- 219
• US Class Current: 623/1.15
• CPC Class Codes: A61F 2/06 Blood vessels
• CPC Class Codes: A61F 2/2418 Scaffolds therefor, e.g. support stents
• CPC Class Codes: A61F 2/2475 Venous valves
• CPC Class Codes: A61F 2/86 Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure
• 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 2002/068 Modifying the blood flow model, e.g. by diffuser or deflector
• CPC Class Codes: A61F 2002/91508 the meander having a difference in amplitude along the band
• CPC Class Codes: A61F 2002/91516 the meander having a change in frequency along the band
• CPC Class Codes: A61F 2002/91533 characterised by the phase between adjacent bands
• CPC Class Codes: A61F 2002/91575 connected peak to trough
• CPC Class Codes: A61F 2220/0016 with sharp anchoring protrusions, e.g. barbs, pins, spikes
• CPC Class Codes: A61F 2220/0058 soldered or brazed or welded
• CPC Class Codes: A61F 2230/0054 V-shaped
• CPC Class Codes: A61F 2250/0037 differing in height or in length
• CPC Class Codes: A61F 2250/0039 differing in diameter

Abstract

Implantable frames for use in body passages are provided herein. The implantable frames can include a plurality of hoop members joined by a plurality of longitudinal connecting members to form a tubular frame defining a cylindrical lumen. The plurality of longitudinal connecting members may include first and second longitudinal connecting members joining a first hoop member to a second hoop member such that the first and second longitudinal connecting members extend across an entire space separating the first and second hoop members.

Claims

1. An implantable frame defining a lumen extending between a proximal end and a distal end along a longitudinal axis, the implantable frame moveable between a compressed state and an expanded state and comprising:

a proximal hoop member;

a distal hoop member;

one or more additional hoop members positioned between the proximal and distal hoop members along said longitudinal axis;

each hoop member comprising a plurality of interconnected struts and bends arranged in an undulating shape;

wherein each hoop member of the one or more additional hoop members is connected to a longitudinally adjacent hoop member by an array of longitudinal connecting members arranged in pairs of closely-spaced longitudinal connecting members;

wherein a first pair of closely-spaced longitudinal connecting members extends from a first bend of a first hoop member toward a first bend of a second hoop member; and

wherein a second pair of closely-spaced longitudinal connecting members extends from the first bend of the second hoop member toward a first bend of a third hoop member.

2. The implantable frame of claim 1, wherein a first longitudinal connecting member of the first pair of closely-spaced longitudinal connecting members has a first lengthwise axis;

wherein a first longitudinal connecting member of the second pair of closely-spaced longitudinal connecting members has a second lengthwise axis; and

wherein the first lengthwise axis is coaxial with the second lengthwise axis.

3. The implantable frame of claim 1, wherein a third pair of closely-spaced longitudinal connecting members extends from a second bend of the first hoop member toward a second bend of the second hoop member;

and

wherein a fourth pair of closely-spaced longitudinal connecting members extends from the second bend of the second hoop member toward a second bend of the third hoop member.

4. The implantable frame of claim 3, wherein a first longitudinal connecting member of the third pair of closely-spaced longitudinal connecting members has a third lengthwise axis;

wherein a first longitudinal connecting member of the fourth pair of closely-spaced longitudinal connecting members has a fourth lengthwise axis; and

wherein the third lengthwise axis is coaxial with the fourth lengthwise axis.

5. The implantable frame of claim 3, wherein a fifth pair of closely-spaced longitudinal connecting members extends from a third bend of the first hoop member toward a third bend of the second hoop member;

and

wherein a sixth pair of closely-spaced longitudinal connecting members extends from the third bend of the second hoop member toward a third bend of the third hoop member.

6. The implantable frame of claim 5, wherein a first longitudinal connecting member of the fifth pair of closely-spaced longitudinal connecting members has a fifth lengthwise axis;

wherein a first longitudinal connecting member of the sixth pair of closely-spaced longitudinal connecting members has a sixth lengthwise axis; and

wherein the fifth lengthwise axis is coaxial with the sixth lengthwise axis.

7. The implantable frame of claim 1, wherein the first pair of closely-spaced longitudinal connecting members extends axially-beyond a second bend of the second hoop member.

8. The implantable frame of claim 1, wherein the first bend of the first hoop member has a first apex and connects first and second circumferentially adjacent struts;

and

wherein the first pair of closely-spaced longitudinal connecting members extends from the first apex.

9. The implantable frame of claim 8, wherein a third pair of closely-spaced longitudinal connecting members extends from a second bend of the first hoop member toward a second bend of the second hoop member, the third pair of closely-spaced longitudinal connecting members disposed between the second strut and a circumferentially adjacent third strut of the first hoop member.

10. The implantable frame of claim 1, wherein the first hoop member comprises one of the one or more additional hoop members.

11. The implantable frame of claim 10, wherein the third hoop member comprises one of the proximal and distal hoop members.

12. The implantable frame of claim 1, further comprising a radiopaque marker.

13. The implantable frame of claim 12, wherein the radiopaque marker is attached to a bridging member extending between first and second struts of a hoop member.

14. The implantable frame of claim 1, wherein the implantable frame is self-expandable.

15. The implantable frame of claim 14, wherein the implantable frame comprises a shape memory alloy.

16. The implantable frame of claim 1, wherein the implantable frame requires mechanical expansion to move from the compressed state to the expanded state.

17. The implantable frame of claim 1, wherein the implantable frame includes a bioactive agent.

18. An implantable frame defining a lumen extending between a proximal end and a distal end along a longitudinal axis, the implantable frame moveable between a compressed state and an expanded state and comprising:

a proximal hoop member;

a distal hoop member;

one or more additional hoop members positioned between the proximal and distal hoop members along said longitudinal axis;

each hoop member comprising a plurality of interconnected struts and bends arranged in an undulating shape;

wherein each hoop member of the one or more additional hoop members is connected to a longitudinally adjacent hoop member by an array of longitudinal connecting members arranged in pairs of closely-spaced longitudinal connecting members;

wherein a first pair of closely-spaced longitudinal connecting members extends from a first bend of a first hoop member toward a first bend of a second hoop member;

wherein a second pair of closely-spaced longitudinal connecting members extends from the first bend of the second hoop member toward a first bend of a third hoop member;

wherein a first longitudinal connecting member of the first pair of closely-spaced longitudinal connecting members has a first lengthwise axis;

wherein a first longitudinal connecting member of the second pair of closely-spaced longitudinal connecting members has a second lengthwise axis; and

wherein the first lengthwise axis is coaxial with the second lengthwise axis.

19. An implantable frame defining a lumen extending between a proximal end and a distal end along a longitudinal axis, the implantable frame moveable between a compressed state and an expanded state and comprising:

a proximal hoop member;

a distal hoop member;

one or more additional hoop members positioned between the proximal and distal hoop members along said longitudinal axis;

each hoop member comprising a plurality of interconnected struts and bends arranged in an undulating shape;

wherein each hoop member of the one or more additional hoop members is connected to a longitudinally adjacent hoop member by an array of longitudinal connecting members arranged in pairs of closely-spaced longitudinal connecting members;

wherein a first pair of closely-spaced longitudinal connecting members extends from a first bend of a first hoop member toward a first bend of a second hoop member;

wherein a second pair of closely-spaced longitudinal connecting members extends from the first bend of the second hoop member toward a first bend of a third hoop member;

wherein a third pair of closely-spaced longitudinal connecting members extends from a second bend of the first hoop member toward a second bend of the second hoop member;

wherein a fourth pair of closely-spaced longitudinal connecting members extends from the second bend of the second hoop member toward a second bend of the third hoop member;

wherein a first longitudinal connecting member of the first pair of closely-spaced longitudinal connecting members has a first lengthwise axis;

wherein a first longitudinal connecting member of the second pair of closely-spaced longitudinal connecting members has a second lengthwise axis; and

wherein the first lengthwise axis is coaxial with the second lengthwise axis.