Coatings for drug delivery devices
First Claim
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1. A coating for a medical device, the coating comprising a polymer having at least one unit (I):
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—
[CH2—
CHR1]—
(I)and at least one unit (II);
—
[CH2—
CR2(CH2OH)]—
(II)wherein the coating is capable of containing a drug, andwherein R1 is selected from a group consisting of hydrogen and an alkyl group; and
R2 is an alkyl group.
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Abstract
A polymer coating for medical devices based on a polyolefin derivative. A variety of polymers are described to make coatings for medical devices, particularly, for drug delivery stents. The polymers include homo-, co-, and terpolymers having at least one olefin-derived unit and at least one unit derived from vinyl alcohol, allyl alcohol and derivatives thereof.
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Citations
15 Claims
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1. A coating for a medical device, the coating comprising a polymer having at least one unit (I):
-
—
[CH2—
CHR1]—
(I)and at least one unit (II);
—
[CH2—
CR2(CH2OH)]—
(II)wherein the coating is capable of containing a drug, and wherein R1 is selected from a group consisting of hydrogen and an alkyl group; and
R2 is an alkyl group. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A coating for a stent, the coating comprising a polymer having at least one unit (I):
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—
[CH2—
CHR1]—
(I)and at least one unit (II);
—
[CH2—
CR2(CH2OH)]—
(II)wherein R1 is selected from a group consisting of a hydrogen atom and an alkyl group; and R2 is an alkyl group, wherein the coating contains a drug. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15)
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Specification