US 12,263,104 B2
Self expanding stents and methods
Richard A. Swift, South Bend, IN (US); Sam C. Mullins, Limerick (IE); and Stephen T. Clancy, County Clare (IE)
Assigned to Cook Medical Technologies LLC, Bloomington, IN (US)
Filed by Cook Medical Technologies LLC, Bloomington, IN (US)
Filed on May 20, 2022, as Appl. No. 17/750,042.
Application 17/750,042 is a continuation in part of application No. 17/713,399, filed on Apr. 5, 2022, granted, now 11,896,507.
Claims priority of provisional application 63/313,902, filed on Feb. 25, 2022.
Claims priority of provisional application 63/190,906, filed on May 20, 2021.
Prior Publication US 2023/0000648 A1, Jan. 5, 2023
Int. Cl. A61F 2/915 (2013.01)
CPC A61F 2/915 (2013.01) [A61F 2002/91541 (2013.01); A61F 2002/91558 (2013.01); A61F 2002/91583 (2013.01); A61F 2230/0052 (2013.01); A61F 2250/001 (2013.01)] 25 Claims
OG exemplary drawing
 
1. A stent comprising:
a framework having a hollow cylindrical shape with a length along a stent axis, and the framework including a sequence of cells that each occupy a discrete segment of the stent length, and each of the cells including a plurality of struts with ends connected at respective vertices;
an adjacent pair of the cells being attached to one another by a first plurality of T-bars that each include a first column defining a long axis extending parallel to the stent axis and a top bar attached to one end of the first column, and an opposite end of the first column being attached to a first cell of the adjacent pair of cells, the top bar being attached at opposite ends to a second cell of the adjacent pair of cells, the top bar having a top bar edge that faces away from the first column and defines a first peak and a second peak separated by a concave curved edge portion;
a third cell of the sequence of cells, the third cell adjacent to the second cell opposite the first cell along the stent length, the third cell connected to the second cell by a second plurality of T-bars each having a top bar having a top bar edge defining a first peak and a second peak separated by a concave curved edge portion;
wherein the framework has a first total number of vertices on the first cell that face toward the second cell across a gap between the first cell and the second cell;
wherein the framework has a second total number of vertices on the second cell and first and second peaks of the second plurality of T-bars, combined, that face toward the first cell across the gap;
and wherein the first total number and the second total number are the same.