Intralumenally-implantable frames
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.
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; and
wherein a first pair of closely-spaced longitudinal connecting members is disposed between a first strut of the plurality of interconnected struts of a hoop member and a circumferentially adjacent second strut of the plurality of interconnected struts of the hoop member.
2. The implantable frame of claim 1 , wherein the proximal and distal hoop members are oriented in opposite directions relative to said lengthwise axis.
3. The implantable frame of claim 1 , comprising a first hoop member and a longitudinally adjacent second hoop member; and
wherein the first pair of closely-spaced longitudinal connecting members extends from a first bend of the first hoop member toward and axially-beyond a second bend of the second hoop member.
4. The implantable frame of claim 3 , wherein the first hoop member comprises one of the one or more additional hoop members.
5. The implantable frame of claim 4 , wherein the second hoop member comprises one of the proximal and distal hoop members.
6. The implantable frame of claim 4 , wherein the one or more additional hoop members comprises two or more hoop members; and
wherein the second hoop member comprises another of the one or more additional hoop members.
7. The implantable frame of claim 3 , comprising a third hoop member longitudinally adjacent to the first hoop member; and
wherein a second pair of closely-spaced longitudinal connecting members extends from a third bend of the first hoop member toward and axially beyond a fourth bend of the third hoop member.
8. The implantable frame of claim 7 , wherein the first hoop member comprises one of the one or more additional hoop members.
9. The implantable frame of claim 8 , wherein the one or more additional hoop members comprises two or more hoop members; and
wherein the second hoop member comprises another of the one or more additional hoop members.
10. The implantable frame of claim 9 , wherein the third hoop member comprises one of the proximal and distal hoop members.
11. The implantable frame of claim 9 , wherein the one or more additional hoop members comprises three or more hoop members; and
wherein the third hoop member comprises another of the one or more additional hoop members.
12. The implantable frame of claim 3 , wherein the one or more additional hoop members comprises two or more hoop members; and
wherein each hoop member of the two or more hoop members have one of two different configurations relative to said lengthwise axis.
13. The implantable frame of claim 3 , further comprising a radiopaque marker.
14. The implantable frame of claim 13 , wherein the radiopaque marker is attached to a bridging member extending between first and second struts of a hoop member.
15. The implantable frame of claim 1 , wherein the implantable frame is self-expandable.
16. The implantable frame of claim 15 , wherein the implantable frame comprises a shape memory alloy.
17. The implantable frame of claim 1 , wherein the implantable frame requires mechanical expansion to move from the compressed state to the expanded state.
18. The implantable frame of claim 1 , wherein the implantable frame includes a bioactive agent.
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 is disposed between a first strut of the plurality of interconnected struts of a hoop member and a circumferentially adjacent second strut of the plurality of interconnected struts of the hoop member;
wherein each pair of a first set of the pairs of closely-spaced longitudinal connecting member extends from a bend of a first hoop member of the one or more additional hoop members and toward and axially-beyond a bend of a longitudinally adjacent second hoop member;
wherein each pair of a second set of the pairs of closely-spaced longitudinal connecting members extends from a bend of the first hoop member toward and axially beyond a bend of a longitudinally adjacent third hoop member.
20. 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 oriented in a first direction relative to said lengthwise axis;
a distal hoop member oriented in a second, opposite directions relative to said lengthwise axis;
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 is disposed between a first strut of the plurality of interconnected struts of a hoop member and a circumferentially adjacent second strut of the plurality of interconnected struts of the hoop member;
wherein each pair of a first set of the pairs of closely-spaced longitudinal connecting members extends from a bend of a first hoop member of the one or more additional hoop members and toward and axially-beyond a bend of a longitudinally adjacent second hoop member;
wherein each pair of a second set of the pairs of closely-spaced longitudinal connecting members extends from a bend of the first hoop member toward and axially beyond a bend of a longitudinally adjacent third hoop member.