Polymer metal and composite implantable medical devices

a medical device and metal composite technology, applied in the field of polymer metal and composite implantable medical devices, can solve the problems of large profile, difficult visualization of stents during delivery and after deployment, and inability to bioerode, and achieve the effect of different erosion ra
US20110307053A1Inactive Publication Date: 2011-12-15ABBOTT CARDIOVASCULAR
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Patent Information

Authority / Receiving Office
US Ā· United States
Patent Type
Applications(United States)
Current Assignee / Owner
ABBOTT CARDIOVASCULAR
Publication Date
2011-12-15
Estimated Expiration
Not applicable Ā· inactive patent

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Abstract

A device and a method of manufacturing an implantable medical device, such as a stent, are described herein. The device includes a metallic region composed of a bioerodable metal and a polymer region composed of a biodegradable polymer contacting the metallic region. The metallic region may erode at a different rate when exposed to bodily fluids than the polymer region when exposed to bodily fluids. In certain embodiments, the polymer region is an outer layer and the metallic region is an inner layer of the device.
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Description

CROSS-REFERENCE

[0001] This is a continuation of application Ser. No. 10 / 880,025 which is a continuation-in-part of application Ser. No. 10 / 767,296 filed on Jan. 28, 2004, issued as U.S. Pat. No. 7,699,890, which is a divisional application of application Ser. No. 10 / 235,033, which was filed on Sep. 3, 2002, issued as U.S. Pat. No. 6,723,120, which is a continuation of application Ser. No. 09 / 797,313, filed on Mar. 1, 2001, which is a division of application Ser. No. 08 / 837,993, filed on Apr. 15, 1997, and issued Jun. 5, 2001 as U.S. Pat. No. 6,240,616. The contents of application Ser. No. 10 / 880,025 are incorporated by reference herein.BACKGROUND OF THE INVENTION

[0002] 1. Field of the Invention

[0003] This invention relates to polymer and metal composite implantable medical devices, such as stents.

[0004] 2. Description of the State of the Art

[0005] This invention relates to radially expandable endoprostheses which are adapted to be implanted in a bodily lumen. An ā€œendoprosthesisā€ correspo...

Claims

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