Helical implant having different ends
First Claim
1. An implant, comprising:
- a tubular intermediate portion defining a first helical winding and a longitudinal axis;
a tubular end portion defining a different second helical winding and disposed adjacent to an end of the intermediate portion; and
a paddle disposed adjacent to the end portion,the intermediate and end portions including a plurality of struts and bridges, each strut having an end connected to an end of an adjacent strut, each bridge connected to an end of a strut, the intermediate and end portions each having an end strut disposed proximate to an end of each helical winding, andthe paddle having a length and opposing ends disposed parallel to the longitudinal axis, an end of the paddle directly connected to a paddle strut directly connected to a paddle bridge, one of the end struts directly connected to the paddle bridge.
1 Assignment
0 Petitions
Accused Products
Abstract
Preferred embodiments of an implantable medical device with a high degree of flexibility is shown and described. One aspect includes an implantable stent having an intermediate portion with a helical winding and first and second end portions. The implantable stent further includes a coupling portion with a helical winding, and bridges joining struts of defining the helical windings. The stent also includes a paddle providing a bridge joining the ends or the helical windings. Another aspect relates to a radially self-expansible stent with a plurality of radiopaque markers attached to it. The markers are shaped and located at the stent end such that the compressive stress exerted on the end annulus of the stent during release of the stent is shared between the markers and the inflection zones that do not carry a marker.
143 Citations
18 Claims
-
1. An implant, comprising:
-
a tubular intermediate portion defining a first helical winding and a longitudinal axis; a tubular end portion defining a different second helical winding and disposed adjacent to an end of the intermediate portion; and a paddle disposed adjacent to the end portion, the intermediate and end portions including a plurality of struts and bridges, each strut having an end connected to an end of an adjacent strut, each bridge connected to an end of a strut, the intermediate and end portions each having an end strut disposed proximate to an end of each helical winding, and the paddle having a length and opposing ends disposed parallel to the longitudinal axis, an end of the paddle directly connected to a paddle strut directly connected to a paddle bridge, one of the end struts directly connected to the paddle bridge. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
-
-
14. An implant, comprising:
-
an intermediate portion having a first continuous helical winding defining a plurality of circumferential sections circumscribing a longitudinal axis from a first end to a second end to define a portion of essentially a tube, the circumferential sections being spaced apart along the longitudinal axis, each circumferential section having undulations disposed about a portion of the tube; a first end portion disposed proximate the first end, the first portion having a second continuous helical winding that circumscribes a portion of the longitudinal axis, the second continuous helical winding having undulations of increasing lengths; a second end portion disposed proximate the second end, the second portion having undulations that circumscribe the longitudinal axis to define a ring; a coupling portion that connects the second portion to the intermediate portion, the coupling portion having a third continuous helical winding that circumscribes a portion of the longitudinal axis; and a paddle disposed adjacent to the first portion, the paddle having a length and opposing ends disposed parallel to the longitudinal axis, an end of the paddle directly connected to a paddle strut directly connected to a paddle bridge, at least one end strut of the intermediate portion directly connected to the paddle bridge. - View Dependent Claims (15, 16, 17, 18)
-
Specification