US 12,408,919 B2
Catheter with radiofrequency cutting tip and heated balloon
John F. Howard, Salem, MA (US); Gerald Fredrickson, Westford, MA (US); Kristin Regan, Winchester, MA (US); and Gary A. Jordan, Litchfield, NH (US)
Assigned to Boston Scientific Scimed, Inc., Maple Grove, MN (US)
Filed by Boston Scientific Scimed, Inc., Maple Grove, MN (US)
Filed on Apr. 13, 2021, as Appl. No. 17/229,673.
Application 17/229,673 is a continuation of application No. 15/899,985, filed on Feb. 20, 2018, granted, now 11,000,283.
Application 15/899,985 is a continuation of application No. 14/724,480, filed on May 28, 2015, granted, now 9,913,649, issued on Mar. 13, 2018.
Claims priority of provisional application 62/004,003, filed on May 28, 2014.
Prior Publication US 2021/0228210 A1, Jul. 29, 2021
Int. Cl. A61B 18/14 (2006.01); A61B 17/11 (2006.01); A61B 17/32 (2006.01); A61F 2/04 (2013.01); A61F 2/958 (2013.01); A61B 17/00 (2006.01); A61B 18/00 (2006.01)
CPC A61B 17/1114 (2013.01) [A61B 17/320016 (2013.01); A61B 18/1492 (2013.01); A61F 2/04 (2013.01); A61F 2/958 (2013.01); A61B 2017/00278 (2013.01); A61B 2017/00818 (2013.01); A61B 2017/00867 (2013.01); A61B 2017/1139 (2013.01); A61B 2018/0022 (2013.01); A61B 2018/00494 (2013.01); A61B 2018/00601 (2013.01); A61F 2002/045 (2013.01); A61F 2002/9583 (2013.01); A61F 2210/0033 (2013.01); A61F 2230/0069 (2013.01); A61F 2230/0078 (2013.01); A61F 2250/0003 (2013.01); A61F 2250/0039 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A stent delivery catheter, comprising:
a catheter shaft having a proximal end and a distal end;
wherein the catheter shaft further comprises an inner member and an outer member;
an inflatable balloon having an inner region and an outer surface, the inflatable balloon disposed adjacent to the distal end of the catheter shaft;
a cutting electrode disposed on the distal end of the inner member of the catheter shaft; and
a self-expanding stent disposed about the catheter shaft and adjacent to the distal end, the stent having a non-expanded state and an expanded state, wherein the stent in the expanded state comprises a proximal retention feature and a distal retention feature,
wherein the distal retention feature increases in diameter from a distal end of the self-expanding stent towards a proximal end of the self-expanding stent,
wherein the proximal retention feature increases in diameter from the proximal end of the self-expanding stent towards the distal end of the self-expanding stent, and
wherein at least one of the proximal or distal retention features are configured to engage an interior portion of a pseudocyst or a gastric structure to prevent migration of the self-expanding stent.