US 11,986,236 B2
Devices and methods for forming a fistula
Gary H. Miller, Milpitas, CA (US); Adam L. Berman, Austin, TX (US); William E. Cohn, Bellaire, TX (US); Dana R. Mester, Austin, TX (US); and Damian A. Jelich, Austin, TX (US)
Assigned to TVA Medical, Inc., Franklin Lakes, NJ (US)
Filed by TVA Medical, Inc., Franklin Lakes, NJ (US)
Filed on Jun. 8, 2021, as Appl. No. 17/342,209.
Application 17/342,209 is a continuation of application No. 16/056,775, filed on Aug. 7, 2018, granted, now 11,051,880.
Application 16/056,775 is a continuation of application No. 14/697,451, filed on Apr. 27, 2015, granted, now 10,045,817, issued on Aug. 14, 2018.
Application 14/697,451 is a continuation of application No. 14/550,747, filed on Nov. 21, 2014, granted, now 9,039,702, issued on May 26, 2015.
Application 14/550,747 is a continuation of application No. 13/298,169, filed on Nov. 16, 2011, granted, now 9,017,323, issued on Apr. 28, 2015.
Claims priority of provisional application 61/414,357, filed on Nov. 16, 2010.
Prior Publication US 2021/0369344 A1, Dec. 2, 2021
Int. Cl. A61B 18/14 (2006.01); A61B 17/32 (2006.01); A61B 17/3207 (2006.01); A61B 18/16 (2006.01); A61M 1/36 (2006.01); A61B 17/00 (2006.01); A61B 17/22 (2006.01); A61B 18/00 (2006.01); A61B 18/12 (2006.01); A61B 90/00 (2016.01)
CPC A61B 18/1492 (2013.01) [A61B 17/320016 (2013.01); A61B 17/320725 (2013.01); A61B 18/16 (2013.01); A61M 1/3655 (2013.01); A61B 2017/00778 (2013.01); A61B 2017/00876 (2013.01); A61B 2017/22095 (2013.01); A61B 2017/320791 (2013.01); A61B 2018/00083 (2013.01); A61B 2018/00107 (2013.01); A61B 2018/00172 (2013.01); A61B 2018/00404 (2013.01); A61B 2018/00577 (2013.01); A61B 2018/00625 (2013.01); A61B 2018/1253 (2013.01); A61B 2018/144 (2013.01); A61B 2090/3925 (2016.02); A61B 2090/3966 (2016.02)] 17 Claims
OG exemplary drawing
 
1. A system for forming a fistula between two blood vessels comprising:
a first catheter comprising a catheter body and an electrode comprising a first end, a second end, and a patterned ablation surface including a plurality of channels crossing one another defining a plurality of projections raised between the plurality of channels positioned between the first end and the second end,
a second catheter, wherein the second catheter comprises a recessed region,
wherein the electrode is movable from a low-profile configuration to an extended position wherein the patterned ablation surface of the electrode extends away from the catheter body.