US 11,986,209 B2
Methods and devices for creation of communication between aorta and left atrium
Matthew DiCicco, Guelph (CA); Gareth Davies, Toronto (CA); Eduardo Moriyama, Richmond (CA); and John Paul Urbanski, Toronto (CA)
Assigned to Boston Scientific Medical Device Limited, Ballybrit (IE)
Filed by Boston Scientific Medical Device Limited, Ballybrit (IE)
Filed on Feb. 25, 2021, as Appl. No. 17/185,202.
Claims priority of provisional application 62/981,434, filed on Feb. 25, 2020.
Prior Publication US 2021/0259732 A1, Aug. 26, 2021
Int. Cl. A61B 17/34 (2006.01); A61B 17/00 (2006.01)
CPC A61B 17/3423 (2013.01) [A61B 17/3476 (2013.01); A61B 2017/00053 (2013.01); A61B 2017/3425 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A method for creating a pathway between an aorta and a left atrium of a patient's heart, comprising:
a. via a femoral venous access site and a right atrium, advancing a puncture assembly device towards an interatrial septum, wherein said puncture assembly device comprises a sheath, a dilator, and a flexible puncturing device;
b. positioning a perforating tip of puncturing device adjacent an interatrial septum proximate a left atrium;
c. advancing the perforating tip to perforate through the interatrial septum creating a pathway between the right atrium and left atrium;
d. advancing the puncturing device to the left atrium;
e. advancing the sheath and the dilator over the puncturing device through the septum and into the left atrium such that perforating tip of the puncturing device is aligned with a distal tip of the sheath and a distal tip of the dilator, forming said puncturing assembly;
f. positioning the puncturing assembly at a target site within the left atrium to gain access to the aorta;
g. advancing the perforating tip of the puncturing device to perforate through the wall of the left atrium and then through a wall of the aorta, to create a pathway between the aorta and the left atrium;
h. advancing a snare towards the aorta via an arterial access site;
i. snaring the puncturing device with the snare; and
j. confirming the creation of the pathway between the aorta and the left atrium with at least one of fluoroscopy, electro-anatomical mapping, pressure measurement, contrast injection, and echocardiography.