| 摘要 |
<p>Abstract The present disclosure provides a stent positionable in a body lumen and radially inwardly contracted to permit placement of the stent in a body lumen and radially outwardly expanded after placement in the body lumen to secure an opening in the body lumen, the stent comprising: a cylindrical stent body comprised of a plurality of annular wavy bodies each comprised of a wave-shaped strut configured to include plural bent portions and plural connecting portions, with each connecting portion connecting pairs of the bent portions, the bent portions each possessing an inflection point, the bent portions being subjected to deformation when the stent is contracted and expanded; the plurality of annular wavy bodies being axially arranged, with axially adjacent ones of the annular bodies connected by a joint portion; a drug coat layer on an outer surface of the struts forming at least some of said annular wavy bodies; and the drug coat layer including a plurality of spaced-apart drug coat layer thickness reducing regions at which the drug coat layer on the outer surface of the struts possesses a thickness that gradually decreases, the drug coat layer thickness reducing regions being located at parts of the struts on opposite sides of the inflection points of the bent portions.</p> |
