US 11,653,923 B1
Percutaneous arterial to venous anastomosis clip application catheter system and methods
Brad M. Kellerman, Escondido, CA (US); and Jeffrey E. Hull, Midlothian, VA (US)
Assigned to AVENU MEDICAL, INC., San Juan Capistrano, CA (US)
Filed by Avenu Medical, Inc., San Juan Capistrano, CA (US)
Filed on May 20, 2020, as Appl. No. 16/879,653.
Application 16/011,401 is a division of application No. 14/450,174, filed on Aug. 1, 2014, granted, now 10,070,866, issued on Sep. 11, 2018.
Application 16/879,653 is a continuation of application No. 16/011,401, filed on Jun. 18, 2018, granted, now 10,695,065.
Claims priority of provisional application 61/861,238, filed on Aug. 1, 2013.
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 17/115 (2006.01); A61B 18/04 (2006.01); A61B 17/11 (2006.01); A61B 18/00 (2006.01)
CPC A61B 17/115 (2013.01) [A61B 18/04 (2013.01); A61B 2017/1103 (2013.01); A61B 2017/1107 (2013.01); A61B 2018/00601 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A method of creating a fistula, comprising:
deploying a shape-memory fixation device to couple a first blood vessel to a second blood vessel, the shape-memory fixation device having a first configuration before the deploying and a second biased configuration after the deploying;
advancing a catheter device through the second blood vessel to a target location having the first blood vessel and the second blood vessel such that a distal portion of the catheter device is advanced from the second blood vessel and into the first blood vessel, so that the distal portion of the catheter device is disposed proximate a wall of the first blood vessel and a proximal portion of the catheter device is disposed proximate a wall of the second blood vessel;
moving the distal portion of the catheter device and the proximal portion of the catheter device towards each other such that a portion of the first blood vessel and a portion of the second blood vessel are captured between a blunt surface of the distal portion of the catheter device and a blunt surface of the proximal portion of the catheter device; and
producing an anastomosis between the first blood vessel and the second blood vessel.
 
10. A method of creating a fistula, comprising:
deploying via an introducer, a shape-memory fixation device to couple a first blood vessel to a second blood vessel, the shape-memory fixation device having a first configuration before the deploying and a second biased configuration after the deploying;
advancing a catheter device through the second blood vessel to a target location having the first blood vessel and the second blood vessel such that a distal portion of the catheter device is advanced from the second blood vessel and into the first blood vessel, so that the distal portion of the catheter device is disposed proximate a wall of the first blood vessel and a proximal portion of the catheter device is disposed proximate a wall of the second blood vessel;
capturing a portion of the first blood vessel and a portion of the second blood vessel between a blunt surface of the distal portion of the catheter and a blunt surface of the proximal portion of the catheter; and
applying heat to the portion of the first blood vessel and the portion of the second blood vessel captured between the first distal portion of the catheter device and the proximal portion of the catheter device to produce an anastomosis.