Longitudinally flexible stent

专利名称：Longitudinally flexible stent发明人：Jacob Richter,Gregory A. Pinchasik申请号：US09864389申请日：20010525

公开号：US20020022876A1公开日：20020221

专利附图：

摘要：An intravascular stent especially suited for implanting in curved arterialportions. The stent retains longitudinal flexibility after expansion. The stent is formed ofintertwined meander patterns forming triangular cells. The triangular cells are adaptedto provide radial support, and also to provide longitudinal flexibility after expansion. The

triangular cells provide increased coverage of a vessel wall. The stent can have differentportions adapted to optimize radial support or to optimize longitudinal flexibility. Loopsin the stent are disposed and adapted to cooperate so that after expansion of said stentwithin a curved lumen, the stent is curved and cells on the outside of the curve open inlength, but narrow in width whereas cells on the inside of the curve shorten in length butthicken in width to maintain a density of stent element area which much more constantthan otherwise between the inside and the outside of the curve. As a result, when thestent is coated with a medicine the more constant density of stent elements results in aneven dose being applied to the inside wall of the lumen, avoiding the possibility that atoxic dose be supplied at one area while a less than effective dose is applied to anotherarea.

申请人：RICHTER JACOB,PINCHASIK GREGORY A.

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