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Absorbable coating for implantable device

  • US 10,076,591 B2
  • Filed: 06/24/2016
  • Issued: 09/18/2018
  • Est. Priority Date: 03/31/2010
  • Status: Active Grant
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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