Multi-layered radiopaque coating on intravascular devices

a radiopaque coating and intravascular technology, applied in the field of intravascular devices, can solve the problems of band looseness, shifting, falling off, poor or inexistent visualization of these devices, etc., to prevent exposure promote the bonding of the radiopaque layer, and enhance the bonding of the capping layer
US20060260930A1Inactive Publication Date: 2006-11-23SAHAGIAN RICHARD
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
SAHAGIAN RICHARD
Publication Date
2006-11-23
Estimated Expiration
Not applicable · inactive patent

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Abstract

Intravascular devices having a radiopaque layer thereon for visualization are provided. The devices further includes a capping layer on the radiopaque layer to prevent exposure of the radiopaque material to surrounding tissues. A method of coating the device is also provided. The method includes using an unbalanced magnetic field magnetron to generate, from a source, metal atoms for coating and bombarding ions for compressing deposited metal atoms to the surface of the device.
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Description

RELATED U.S. APPLICATIONS(S)

[0001] This application claims priority to U.S. Provisional Application Ser. Nos. 60 / 252,005, filed Nov. 20, 2000, and 60 / 253,107, filed Nov. 27, 2000, both which are hereby incorporated herein by reference.FIELD OF THE INVENTION

[0002] The present invention relates to intravascular devices, and in particular, to intravascular devices having radiopaque coatings thereon for visualization. BACKGROUND ART

[0003] Many medical intravascular devices are used either temporarily or permanently inside the human body. An example of such an intravascular device includes a stent for use in, for instance, coronary angioplasty. Stents are small metal scaffolds used to mechanically hold open and support constricted coronary arteries. For proper positioning, stents may need to be visualized during and after deployment using imaging techniques such as x-ray radiography and x-ray fluoroscopy. However, due to the nature of the materials used to construct these intravascula...

Claims

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