Absorbable coating for implantable device
First Claim
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1. A medical device, comprising:
- (a) a bio-absorbable stent body; and
(b) a coating layer, the coating layer consists of D,L-PLA, novolimus, and BHT, wherein(i) the D,L-PLA has a number average molecular weight below 60,000 Daltons, and(ii) the coating layer has a thickness of less than 5 microns and has an absorption period from about 3 months to about 6 months, andwherein the stent body comprises poly(L-lactic acid-co-caprolactone) (PLLA-CL), poly(D-lactic acid-co-caprolactone) (PDLA-CL), poly(DL-lactic acid-co-caprolactone) (PDLLA-CL), poly(lactide-co-glycolide) (PLA-GA), poly(D-lactic acid-glycolic acid) (PDLA-GA), poly(L-lactic acid-glycolic acid) (PLLA-GA), poly(DL-lactic acid-glycolic acid (PDLLA-GA), or poly(glycolide-co-caprolactone) (PGA-CL).
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Abstract
The present invention provides an absorbable coating for an implantable device and the methods of making and using the same.
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2 Claims
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1. A medical device, comprising:
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(a) a bio-absorbable stent body; and (b) a coating layer, the coating layer consists of D,L-PLA, novolimus, and BHT, wherein (i) the D,L-PLA has a number average molecular weight below 60,000 Daltons, and (ii) the coating layer has a thickness of less than 5 microns and has an absorption period from about 3 months to about 6 months, and wherein the stent body comprises poly(L-lactic acid-co-caprolactone) (PLLA-CL), poly(D-lactic acid-co-caprolactone) (PDLA-CL), poly(DL-lactic acid-co-caprolactone) (PDLLA-CL), poly(lactide-co-glycolide) (PLA-GA), poly(D-lactic acid-glycolic acid) (PDLA-GA), poly(L-lactic acid-glycolic acid) (PLLA-GA), poly(DL-lactic acid-glycolic acid (PDLLA-GA), or poly(glycolide-co-caprolactone) (PGA-CL). - View Dependent Claims (2)
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Specification