MEDICAL DEVICES HAVING INORGANIC BARRIER COATINGS

Title:

MEDICAL DEVICES HAVING INORGANIC BARRIER COATINGS

Document Type and Number:

WIPO Patent Application WO/2010/011515

Kind Code:

A3

Abstract:

Medical devices having a barrier layer comprising an inorganic material. The medical device has a reservoir containing a therapeutic agent and the barrier layer is disposed over the reservoir. In one aspect, the barrier layer has one permeability to the therapeutic agent at one portion of the medical device and a different permeability at another portion of the medical device. In another aspect, the dosage amount of the therapeutic agent in the reservoir at one portion of the medical device is different from the dosage amount of the therapeutic agent in the reservoir at another portion of the medical device. In another aspect, a bioresorbable layer is disposed over the barrier layer at one or more portions of the medical device, wherein the bioresorbable layer comprises a bioresorbable material. Also, methods of coating a medical device are disclosed, in which a barrier layer over a medical device is formed using a lithographic etching process where a plurality of particles serve as an etch mask.

Inventors:

SCHEUERMANN TORSTEN (DE)
KUEHLING MICHAEL (DE)
WEBER JAN (NL)
SEIDEL DOMINIQUE (DE)

Application Number:

PCT/US2009/050365

Publication Date:

November 25, 2010

Filing Date:

July 13, 2009

Export Citation:

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Assignee:

BOSTON SCIENT SCIMED INC (US)
SCHEUERMANN TORSTEN (DE)
KUEHLING MICHAEL (DE)
WEBER JAN (NL)
SEIDEL DOMINIQUE (DE)

International Classes:

A61L31/14; A61L31/08; A61L31/16

Domestic Patent References:

WO2006063157A2	2006-06-15
WO2008061017A1	2008-05-22
WO2008140482A2	2008-11-20

Other References: