US 11,813,185 B2
Self-orienting endovascular delivery system
Yaniv Marmur, Yokneam Moshava (IL); Or Zigelboim, Ness Ziona (IL); and Alon Shalev, Ra'anana (IL)
Assigned to ENDOSPAN LTD., Herzilyia Pituach (IL)
Filed by ENDOSPAN LTD., Herzilyia Pituach (IL)
Filed on Jun. 15, 2022, as Appl. No. 17/840,786.
Application 16/909,259 is a division of application No. 15/548,180, abandoned, previously published as PCT/IL2016/050049, filed on Jan. 14, 2016.
Application 17/840,786 is a continuation of application No. 16/909,259, filed on Jun. 23, 2020, granted, now 11,389,313.
Claims priority of provisional application 62/110,659, filed on Feb. 2, 2015.
Prior Publication US 2022/0304839 A1, Sep. 29, 2022
Int. Cl. A61F 2/07 (2013.01); A61F 2/856 (2013.01); A61F 2/966 (2013.01)
CPC A61F 2/9662 (2020.05) [A61F 2/07 (2013.01); A61F 2/856 (2013.01); A61F 2230/008 (2013.01)] 22 Claims
OG exemplary drawing
 
1. Apparatus comprising an endovascular system, which comprises:
a stent-graft, which is shaped so as to define an inferior lateral opening, and which is configured to transition from a radially-compressed delivery state to a radially-expanded state;
an elongate delivery shaft assembly, which has proximal and distal end portions, defines a central longitudinal axis, and comprises an outer covering shaft and an inner support shaft; and
a distal tip, which is fixed to and extends distally beyond a distal end of the inner support shaft,
wherein the endovascular system is configured such that when the delivery shaft assembly is unconstrained and the stent-graft is removably constrained in the radially-compressed delivery state along the distal end portion of the delivery shaft assembly, radially between the outer covering shaft and the inner support shaft:
the delivery shaft assembly is shaped so as to define a self-orienting portion proximal of the distal tip, the self-orienting portion shaped so as to define (a) at least proximal and distal curved portions, wherein the proximal curved portion is disposed more proximal than the distal curved portion, and (b) at least one point of inflection on the central longitudinal axis longitudinally between the proximal and the distal curved portions,
the distal tip is configured to be positioned near a bifurcation of a brachiocephalic artery from an aortic arch, and
the self-orienting portion is configured, upon the positioning of the distal tip near the bifurcation, to automatically rotationally orient& itself in the aortic arch to a rotational orientation in which the inferior lateral opening of the stent-graft faces upstream in the aortic arch.