HELICAL IMPLANT HAVING DIFFERENT ENDS
First Claim
1. An implant, comprising:
- a tubular intermediate portion defining a first helical winding and a longitudinal axis;
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 connected to a paddle strut connected to a paddle bridge, one of the end struts 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.
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Citations
112 Claims
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1. An implant, comprising:
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a tubular intermediate portion defining a first helical winding and a longitudinal axis; 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 connected to a paddle strut connected to a paddle bridge, one of the end struts connected to the paddle bridge. - View Dependent Claims (6, 10, 11, 12, 13, 17, 20, 21, 31, 37, 40, 45)
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51. An implant, comprising:
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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 end 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 end portion having undulations that circumscribe the longitudinal axis to define a ring; a coupling portion that connects the second end 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 end portion, the paddle having a length and opposing ends disposed parallel to the longitudinal axis, an end of the paddle connected to a paddle strut connected to a paddle bridge, at least one end strut of the intermediate portion connected to the paddle bridge. - View Dependent Claims (52, 53, 54, 57)
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- 96. A radially self-expansible stent having a thickness in the radial direction and an axial length between end annuli for delivery by a co-axial catheter delivery system, a part of which during release of the stent from the delivery system pushes on one end of the stent while withdrawing a sheath from around the abluminal surface of the stent, whereupon the stent expands from a radially compressed into a radially expanded state, the end annulus to be pushed having a circumference, with a plurality of spaced inflection zones being distributed in the circumference, selected inflection zones carrying a radiopaque marker, wherein the markers are shaped and located on the selected inflection zones such that the compressive stress exerted on the end annulus during release of the stent is shared between the markers and the inflection zones chat do not carry a marker.
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Specification