Method of coating implantable medical devices

Inactive Publication Date: 2006-01-26
ABBOTT CARDIOVASCULAR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0013] In accordance with another aspect of the invention, a method for coating an implantable medical device is provided, comprising forming a polymer layer containing a drug on the device, applying a polymer in a liquid s

Problems solved by technology

A problem associated with the above procedure includes formation of intimal flaps or torn arterial linings which can collapse and occlude the conduit after the balloon is deflated.
Vasospasms and recoil of the vessel wall also threaten vessel closure.
Although stents work well mechanically, the chronic issues of restenosis and, to a lesser extent, thrombosis remain.
These events are adversely affected by the mechanical aspects of the stent such as the degree of injury and disturbance in hemodynamics caused by the stent.
A challenge is ma

Method used

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  • Method of coating implantable medical devices
  • Method of coating implantable medical devices
  • Method of coating implantable medical devices

Examples

Experimental program
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Example

[0018]FIGS. 1A-1E illustrate embodiments of an apparatus 10 for coating medical devices, such as stents. Apparatus 10 can include a disk member 12 mounted on a shaft 14. The shaft 14, in turn, can be connected to a motor 16 for rotating the disk member 12 in a clockwise or counterclockwise direction. The disk member 12 can be flat (FIG. 1A), concave (FIG. 1B), convex (FIG. 1C) or conical (FIGS. 1D and 1E) in shape. The disk member 12 can optionally include a lip 18 disposed about the periphery thereof. The lip 18 can extend in an upwardly direction, towards a nozzle 20.

[0019] The disk member 12 can be made from any suitable material or can be coated with the desired material so as to minimize the ability of the composition to adhere to a surface 22 of the disk member 12 on which the composition is applied via the nozzle 20. One suitable non-stick surface 22 can be TEFLON. A temperature adjustor 24 can also be provided for adjusting the temperature of the composition during the coat...

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Abstract

A method of coating a medical device, such as a stent is provided.

Description

CROSS REFERENCE [0001] This application is a divisional of application Ser. No. 10 / 772,858 filed on Feb. 4, 2002, which is a continuation-in-part of application Ser. No. 10 / 040,574 filed on Dec. 28, 2001.BACKGROUND OF THE INVENTION [0002] 1. Field of the Invention [0003] This invention relates to a method for coating implantable medical devices, such as stents. [0004] 2. Description of the Background [0005] Percutaneous transluminal coronary angioplasty (PTCA) is a procedure for treating heart disease. A catheter assembly having a balloon portion is introduced percutaneously into the cardiovascular system of a patient via the brachial or femoral artery. The catheter assembly is advanced through the coronary vasculature until the balloon portion is positioned across the occlusive lesion. Once in position across the lesion, the balloon is inflated to a predetermined size to radially press against the atherosclerotic plaque of the lesion for remodeling of the vessel wall. The balloon i...

Claims

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Application Information

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IPC IPC(8): A61L33/00B05D3/00B05B3/10B05B13/02
CPCA61F2/82B05B3/001Y10S118/16B05B13/0228B05B3/1014
Inventor HOSSAINY, SYED F.A.
Owner ABBOTT CARDIOVASCULAR
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