Ureteral endoluminal device

Abstract

An endoluminal medical device includes a cannula, the cannula having a proximal end and a distal end; an abrasion member having a series of struts interconnected by a series of bent segments forming a plurality of prongs attached to the cannula, the abrasion member having a first section and a second section; where the prongs of the first section of the abrasion member extend radially outward from the cannula.

1 . An endoluminal medical device to introduce an abrasion to the urothelium, comprising
 a cannula, the cannula having a proximal end and a distal end;   an abrasion member comprising a series of struts interconnected by a series of bent segments forming a plurality of prongs attached to the cannula, the abrasion member having a first section and a second section;   where the prongs of the first section of the abrasion member extend radially outward from the cannula.   
     
     
         2 . The endoluminal medical device of  claim 1 , wherein the first section of the abrasion member comprises five prongs. 
     
     
         3 . The endoluminal device of  claim 2 , wherein the prongs of the first section of the abrasion members have generally star shaped configuration. 
     
     
         4 . The endoluminal device of  claim 1 , wherein the abrasion member comprises a shape-memory material. 
     
     
         5 . The endoluminal device of  claim 1 , wherein the bent segments of the abrasion member have a generally circular configuration. 
     
     
         6 . The endoluminal device of  claim 1 , wherein the prongs of the second section of the abrasion member are disposed within an interior surface of the cannula. 
     
     
         7 . The endoluminal device of  claim 1 , wherein the prongs of the second section of the abrasion member are disposed on an outer surface of the cannula. 
     
     
         8 . The endoluminal device of  claim 1 , wherein the abrasion member is integrally formed with the cannula. 
     
     
         9 . A stent for placement in the ureter, comprising,
 a tubular housing having a proximal end, a distal end, and a lumen longitudinally disposed therethrough;   at least one abrasion member positioned on the tubular housing;   where at least a portion of the abrasion member extends radially outward from the housing and is configured to engage with the urothelium layer of the ureter.   
     
     
         10 . The stent of  claim 9 , wherein the at least one abrasion member is positioned distal of the ureteropelvic junction. 
     
     
         11 . The stent of  claim 9 , wherein the at least one abrasion member comprises a plurality of prongs distributed about the distal end of the stent. 
     
     
         12 . The stent of  claim 11 , wherein the plurality of prongs have a pointed configuration. 
     
     
         13 . The stent of  claim 11 , wherein the plurality of prongs have a generally flattened surface. 
     
     
         14 . The stent of  claim 11 , wherein the plurality of prongs have a generally concave configuration. 
     
     
         15 . The stent of  claim 9 , wherein the abrasion member comprises a series of struts interconnected by a series of bent segments forming a plurality of prongs attached to the cannula, the abrasion member having a first section and a second section. 
     
     
         16 . The stent of  claim 15 , wherein the bent sections of the abrasion members have a generally circular configuration. 
     
     
         17 . The stent of  claim 15 , wherein the bent sections of the abrasion members have a generally straight configuration. 
     
     
         18 . The endoluminal device of  claim 9 , wherein the at least one abrasion member is disposed on the distal end of the tubular housing. 
     
     
         19 . The endoluminal device of  claim 9 , wherein the abrasion member comprises a tubular wire removeably disposed within the lumen of the substantially tubular housing, the tubular wire comprising a plurality of projections configured to be positioned within a plurality of openings on the tubular housing. 
     
     
         20 . A method of introducing an abrasion to the urothelium layer of the ureter, comprising
 providing an endoluminal medical device, the endoluminal device comprising
 a tubular housing having a proximal end, a distal end, and a lumen longitudinally disposed therethrough; 
 at least one abrasion member comprising a series of struts interconnected by a series of bent segments forming a plurality of prongs attached to the tubular housing, the abrasion member having a first section and a second section; 
 where the prongs of the first section of the abrasion member extend radially outward from the housing 
   introducing the endoluminal device into the ureter; and   abrading the urothelium layer of the ureter with the endoluminal device.