US 12,156,961 B2
Methods and systems for establishing retrograde carotid arterial blood flow
Stewart M. Kume, Sunnyvale, CA (US); Sieu T. Duong, Sunnyvale, CA (US); and Michi E. Garrison, Sunnyvale, CA (US)
Assigned to Silk Road Medical, Inc., Sunnyvale, CA (US)
Filed by Silk Road Medical, Inc., Sunnyvale, CA (US)
Filed on Jun. 11, 2021, as Appl. No. 17/345,544.
Application 16/299,524 is a division of application No. 15/093,406, filed on Apr. 7, 2016, granted, now 10,238,853, issued on Mar. 26, 2019.
Application 17/345,544 is a continuation of application No. 17/237,911, filed on Apr. 22, 2021.
Application 17/237,911 is a continuation of application No. 16/299,524, filed on Mar. 12, 2019, granted, now 11,433,226.
Claims priority of provisional application 62/145,809, filed on Apr. 10, 2015.
Prior Publication US 2021/0299425 A1, Sep. 30, 2021
Int. Cl. A61M 1/36 (2006.01); A61M 25/10 (2013.01); A61M 39/06 (2006.01); A61M 39/22 (2006.01)
CPC A61M 1/3613 (2014.02) [A61M 1/3653 (2013.01); A61M 1/3656 (2014.02); A61M 1/3659 (2014.02); A61M 25/10 (2013.01); A61M 39/06 (2013.01); A61M 39/223 (2013.01); A61M 2205/3334 (2013.01); A61M 2205/7545 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method of treating a target artery, comprising:
inserting at least a portion of an arterial access sheath into a common carotid artery, the arterial access sheath comprising:
a distal sheath body defining an internal sheath lumen;
an elongated tubing connected to a proximal end of the sheath body, the elongated tubing having an internal tubing lumen communicating with the internal sheath lumen of the distal sheath body;
a connector that connects the elongated tubing to the sheath body, the connector having at least one suture eyelet and an internal connector lumen that communicates with the internal sheath lumen and the internal tubing lumen;
a Y-adapter hub at a proximal end of the elongated tubing, the Y-adapter hub having an internal Y-adapter lumen and adapted to be removably connected to a reverse flow shunt, the Y-adapter hub having an arterial stopcock valve positioned adjacent to the internal lumen of the Y-adapter hub, wherein the arterial stopcock valve regulates fluid flow out of the internal lumen of the Y-adapter hub toward the reverse flow shunt when the reverse flow shunt is connected to the Y-adapter hub;
a proximal extension connected to a proximal end of the Y-adapter hub, the proximal extension formed of an elongated body and having an internal proximal extension lumen that communicates with the internal lumen of the Y-adapter hub;
a hemostasis valve at a proximal end of the proximal extension such that the proximal extension spaces apart the hemostasis valve from the Y-adapter hub; and
a flush line connected to a proximal end of the proximal extension and providing a passageway to the internal sheath lumen;
treating the target artery via the arterial access sheath.