Combination self-expandable, balloon-expandable endoluminal device
First Claim
1. An endoluminal device comprising:
- a framework having a central longitudinal axis, the framework forming a wall having a plurality of cells, the wall having a constant thickness, the cells extending through the thickness of the wall, the framework comprising a first section having a thickness and a second section having a thickness, the first section consisting of a superelastic material, the second section comprising a combination of a first portion of superelastic material and a second portion of plastically deformable material, the second portion being a constant distance from said central longitudinal axis along the length of the second section, the thickness of the first section being equal to the thickness of the second section.
2 Assignments
0 Petitions
Accused Products
Abstract
An endoluminal device, such as a stent or a vena cava filter, comprising at least one superelastic section and at least one plastically deformable section. The superelastic section may comprise, for example, a superelastic grade of nitinol, whereas the plastically deformable section may comprise, for example, gold, platinum, tantalum, titanium, stainless steel, tungsten, a nickel alloy, a cobalt ally, a titanium alloy, or a combination thereof. Each plastically deformable section may merely comprise a constrained portion of the superelastic section comprising a plastically deformable material, such as gold. The device enables deployment by a method comprising introducing the device into a body lumen with the device radially constrained in a first configuration having a first diameter; allowing the device to self-expand into a second configuration having a second diameter less than or equal to a fully-self-expanded diameter; and then optionally “fine-tuning” the device by forcibly expanding the device into a third configuration having a third diameter in a range between the second diameter and less than or equal to a fully-forcibly-expanded diameter. The superelastic and plastically deformable sections may be tubular sections placed end-to-end, such that the plastically deformable section can be conformed to fit a tapered section of a lumen.
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Citations
22 Claims
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1. An endoluminal device comprising:
a framework having a central longitudinal axis, the framework forming a wall having a plurality of cells, the wall having a constant thickness, the cells extending through the thickness of the wall, the framework comprising a first section having a thickness and a second section having a thickness, the first section consisting of a superelastic material, the second section comprising a combination of a first portion of superelastic material and a second portion of plastically deformable material, the second portion being a constant distance from said central longitudinal axis along the length of the second section, the thickness of the first section being equal to the thickness of the second section. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An endoluminal device comprising:
a framework cut from a tube having a central longitudinal axis, the framework comprising a first section having a thickness and a second section having a thickness, the first section consisting of a superelastic material, the second section comprising a combination of a first portion of superelastic material and a second portion of plastically deformable material, the second portion being a constant distance from said central longitudinal axis along the length of the second section, the thickness of the first section being equal to the thickness of the second section. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21)
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22. An endoluminal device comprising:
a framework having a central longitudinal axis, the framework forming an apertured wall, the apertured wall having a constant thickness, the apertures extending through the thickness of the wall, the framework comprising a first section having a thickness and a second section having a thickness, the first section consisting of a superelastic material, the second section comprising a combination of a first portion of superelastic material and a second portion of plastically deformable material, the second portion and being a constant distance from said central longitudinal axis along the length of the second section, the thickness of the first section being equal to the thickness of the second section.
Specification