Patent ID: 9155640
Filing Date: 2015-10-13
Classification: A61F,Y10T

Abstract:
1. A non-metallic stent having a furled small-diameter state and an expanded large diameter state, the stent comprising, in the furled small-diameter state: a first plurality of central lobes arranged at spaced apart intervals and extending longitudinally defining a stent axis, the first plurality of central lobes extending in a coiled manner from a proximal end of the stent to a distal end of the stent; a second plurality of central lobes arranged at spaced apart intervals and extending longitudinally in the direction of the stent axis, the second plurality of lobes extending from the distal end to the proximal end in a coiled manner, wherein the first plurality of central lobes are formed having a clockwise rotational winding direction from the proximal end to the distal end, and wherein the second plurality of central lobes are formed having a counterclockwise rotational winding direction from the proximal end to the distal end; and at least one peripheral lobe formed on at least one of the first plurality of central lobes and on at least one of the second plurality of central lobes, each peripheral lobe extending radially inward toward an internal area of the stent, wherein each lobe of the first plurality of central lobes, the second plurality of central lobes and the at least one peripheral lobe is formed by a coiled rotation of an element.