US 12,478,722 B2
Bidirectional arterial cannula for extracorporeal membrane oxygenation and method for using such a cannula
Jean-Paul Couetil, Vaucresson (FR)
Assigned to NOVAFLOW, Vaucresson (FR)
Appl. No. 17/776,683
Filed by NOVAFLOW, Vaucresson (FR)
PCT Filed Nov. 6, 2020, PCT No. PCT/FR2020/052022
§ 371(c)(1), (2) Date May 13, 2022,
PCT Pub. No. WO2021/099716, PCT Pub. Date May 27, 2021.
Claims priority of application No. 1912831 (FR), filed on Nov. 18, 2019.
Prior Publication US 2022/0395621 A1, Dec. 15, 2022
Int. Cl. A61M 1/32 (2006.01); A61M 1/36 (2006.01); A61M 25/00 (2006.01); A61M 25/01 (2006.01)
CPC A61M 1/3659 (2014.02) [A61M 25/003 (2013.01); A61M 2025/0031 (2013.01); A61M 25/0102 (2013.01)] 10 Claims
OG exemplary drawing
 
1. An arterial cannula for ECMO comprising:
a main arterial cannula including an inner wall and having a first end with a blood outlet orifice, the first end being intended to be inserted into an artery in order to inject blood in a retrograde manner into the artery, and
a retroperfusion cannula configured to be movable in translation between a retracted position in the first end of the main arterial cannula and a position at least partially deployed out of the first end of the main arterial cannula, the retroperfusion cannula being opposite to the blood outlet orifice of the main arterial cannula, wherein the retroperfusion cannula comprises a tube with a diameter smaller than a diameter of the main arterial cannula, and a ring with a diameter substantially identical to the diameter of the main arterial cannula, the ring being disposed at a proximal end of the retroperfusion cannula with respect to the blood outlet orifice of the main arterial cannula.