Patent ID: 9737642
Date: 2017-08-22
CPC Classifications: A61F,A61L

Claim:
1. A method of preparing a laminate coronary stent comprising: a. providing a stent framework having a plurality of struts, each strut having a luminal, abluminal and side wall surfaces; b. depositing a plurality of bioabsorbable polymer layers on the luminal, abluminal and side wall surfaces of each strut of said stent framework to form said laminate coronary stent; c. depositing at least one active agent in crystalline form; and d. sintering the stent after each polymer layer is deposited; wherein said plurality of layers forms a coating on the stent framework, the coating consisting essentially of the bioabsorbable polymer and the active agent in crystalline form, and wherein at least one internal layer comprises the active agent; and wherein the stent framework has a thickness of about 50% or less of a thickness of the laminate coronary stent.