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US 8,465,539 B2Granted
Device viewable under an imaging beam
AssigneeKieran Murphy LLC
InventorKieran Murphy
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Abstract
The invention provides a stent made from a material operable to perform a stent's desired therapeutic functions, and also made from a material that has a radiopacity that substantially preserves the appearance of the stent when the stent is viewed under a CT imaging beam. Such a stent can allow for follow-up of the stent and the surrounding blood-vessel on CT.
Claims8
A stent, comprising:
- a material having structure to provide three-dimensional visualization of a surrounding tissue when said stent is inserted into said tissue and viewed under an imaging beam,
- said stent having:
- a single coating layer selected from a group consisting of:
- a hydrophilic polymer, a hydrophobic polymer, and a fatty acid polymer;
- a density enhancing radiologic opacifier embedded into said single coating layer, said single coating layer and said embedded opacifier material together providing a first Hounsfield image density suitable for viewing under a first image modality used during device insertion into a patient, wherein said density enhancing radiologic opacifier material is configured to elute from said single coating layer so as to provide a second Hounsfield image density suitable for viewing under a second image modality used for subsequent visualization of surrounding tissue, and wherein the second Hounsfield image density is less than about 1200 Hounsfield Units;
- and
- a restenosis inhibiting drug embedded into said single coating layer.
4 more elements
Dependencies are inferred from the claim text.