Twisted stent

Abstract

A stent is disclosed and can include a stent body having a longitudinal axis. The stent body can also have a network of struts that can define a plurality of cells defined between interconnected struts. Each of the plurality of cells includes a major axis that is angled with respect to the longitudinal axis to form a cell angle, b.

What is claimed is: 
     
         1 . A stent delivery tool comprising:
 an inner carrier catheter wherein the inner carrier catheter includes a stent engagement area configured to engage a twisted stent, with a stent enantiomorphous form, and configured to prevent the twisted stent from rotating relative to the inner carrier catheter.   
     
     
         2 . The stent delivery tool of  claim 1  wherein the stent engagement area includes a delivery helical structure extending at least partially along the stent engagement area and having a delivery structure enantiomorphous form. 
     
     
         3 . The stent delivery tool of  claim 2  wherein the delivery helical structure comprises a helical groove. 
     
     
         4 . The stent delivery tool of  claim 3  wherein an engagement angle equals the angle between the helical groove and a longitudinal axis of the inner carrier catheter. 
     
     
         5 . The stent delivery tool of  claim 4  wherein the engagement angle is greater than zero degrees and less than ninety degrees. 
     
     
         6 . The stent delivery tool of  claim 5  wherein the engagement angle is greater than one degree and less than sixty degrees. 
     
     
         7 . The stent delivery tool of  claim 6  wherein the engagement angle is greater than two degrees and less than forty-five degrees. 
     
     
         8 . The stent delivery tool of  claim 7  wherein the engagement angle is greater than five degrees and less than thirty degrees. 
     
     
         9 . The stent delivery tool of  claim 8  wherein the stent enantiomorphous form is left- or right-handed and the delivery structure enantiomorphous form is opposite that of the stent enantiomorphous form. 
     
     
         10 . The stent delivery tool of  claim 2  wherein the delivery helical structure comprises a raised helical rib. 
     
     
         11 . The stent delivery tool of  claim 10  wherein an engagement angle equals the angle between the helical groove and a longitudinal axis of the inner carrier catheter. 
     
     
         12 . The stent delivery tool of  claim 11  wherein the engagement angle is greater than zero degrees and less than ninety degrees. 
     
     
         13 . The stent delivery tool of  claim 12  wherein the engagement angle is greater than one degree and less than sixty degrees. 
     
     
         14 . The stent delivery tool of  claim 13  wherein the engagement angle is greater than two degrees and less than forty-five degrees. 
     
     
         15 . The stent delivery tool of  claim 14  wherein the engagement angle is greater than five degrees and less than thirty degrees. 
     
     
         16 . The stent delivery tool of  claim 15  wherein the stent enantiomorphous form is left- or right-handed and the delivery structure enantiomorphous form is opposite that of the stent enantiomorphous form. 
     
     
         17 . A stent delivery tool comprising:
 an inner carrier catheter wherein the inner carrier catheter includes a stent engagement area configured to engage a twisted stent, with a stent enantiomorphous form, and configured to prevent the twisted stent from rotating relative to the inner carrier catheter,   wherein the stent engagement area includes a delivery helical structure extending at least partially along the stent engagement area, having a delivery structure enantiomorphous form, and comprising a helical groove,   an engagement angle equals the angle between the helical groove and a longitudinal axis of the inner carrier catheter, and   the engagement angle is greater than zero degrees and less than ninety degrees.   
     
     
         18 . A stent delivery tool comprising:
 an inner carrier catheter wherein the inner carrier catheter includes a stent engagement area configured to engage a twisted stent, with a stent enantiomorphous form, and configured to prevent the twisted stent from rotating relative to the inner carrier catheter,   wherein the stent engagement area includes a delivery helical structure extending at least partially along the stent engagement area, having a delivery structure enantiomorphous form, and comprising a raised helical rib,   an engagement angle equals the angle between the helical groove and a longitudinal axis of the inner carrier catheter, and   the engagement angle is greater than zero degrees and less than ninety degrees.