Medical device for delivering biologically active material

Details Medical device for delivering biologically active material Medical device for delivering biologically active material

A - Human Necessities

61

F

A61F 2/06 (2006.01)

Patent

CA 2574045

This invention relates generally to a stent comprising a plurality of struts and a plurality of projecting elements integral with the struts. At least some of the struts and some of the projecting elements comprise a biologically active material. The struts are configured in a tubular shape or tubular sidewall having two ends. One end of at least one of the projecting elements defines an end of the stent when the stent is expanded. The invention is also directed to a method for delivering the biologically active material to body tissue of a patient by inserting such an expandable stent into body of the patient. The invention is further directed to a system comprising the expandable stent and a balloon catheter for expanding the stent.

Cette invention porte, de manière générale, sur une endoprothèse comprenant une pluralité d'éléments de treillis et une pluralité d'éléments saillants intégrés au treillis. Au moins certains éléments du treillis et certains éléments saillants comprennent une substance biologiquement active. Le treillis se présente sous une forme tubulaire ou de paroi latérale tubulaire comportant deux extrémités. Une extrémité d'au moins un des éléments saillants forme une extrémité de l'endoprothèse lorsque celle-ci est dilatée. L'invention porte également sur un procédé d'administration de la substance biologiquement active dans le tissu biologique d'un patient, ce procédé consistant à insérer cette endoprothèse dilatable dans le corps du patient. L'invention porte, en outre, sur un système comprenant l'endoprothèse dilatable et un cathéter à ballonnet pour dilater l'endoprothèse.

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