US 12,440,267 B2
System for forming a fistula between two vessels
Jakob Wells, Scottsdale, AZ (US); John O'Shea, Enniscorthy (IE); and Michael Whelan, Enniscorthy (IE)
Assigned to CLEARSTREAM TECHNOLOGIES LIMITED, Enniscorthy (IE)
Appl. No. 18/294,411
Filed by CLEARSTREAM TECHNOLOGIES LIMITED, Enniscorthy (IE)
PCT Filed Jul. 13, 2022, PCT No. PCT/EP2022/069607
§ 371(c)(1), (2) Date Feb. 1, 2024,
PCT Pub. No. WO2024/012669, PCT Pub. Date Jan. 18, 2024.
Prior Publication US 2025/0134584 A1, May 1, 2025
Int. Cl. A61B 18/14 (2006.01); A61B 18/00 (2006.01)
CPC A61B 18/1492 (2013.01) [A61B 2018/00184 (2013.01); A61B 2018/00404 (2013.01); A61B 2018/00601 (2013.01); A61B 2018/1475 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A system for forming a fistula between two vessels, the system comprising a first catheter, the first catheter comprising:
a catheter shaft with a housing;
an electrode disposed at least partially within the housing, the electrode comprising a distal portion, a proximal portion and an intermediate portion therebetween for contacting a vessel wall and forming the fistula; and
a plurality of teeth for cutting a venous valve, wherein the plurality of teeth extend radially from the catheter shaft and are angled in a proximal direction, wherein each of the plurality of teeth includes a radially outer atraumatic surface.