US 12,127,929 B2
Multi-component stent-graft system for implantation in a blood vessel with multiple branches
Alon Shalev, Ra'anana (IL); Sagi Raz, Tel Aviv (IL); and Rafi Benary, Tel Aviv (IL)
Assigned to ENDOSPAN LTD., Netanya (IL)
Filed by ENDOSPAN LTD., Herzilyia Pituach (IL)
Filed on Dec. 1, 2020, as Appl. No. 17/108,664.
Application 17/108,664 is a continuation of application No. 16/228,986, filed on Dec. 21, 2018, granted, now 10,888,413.
Application 16/228,986 is a continuation of application No. 14/572,156, filed on Dec. 16, 2014, granted, now 10,201,413, issued on Feb. 12, 2019.
Application 14/572,156 is a continuation of application No. 13/512,778, granted, now 8,945,203, issued on Feb. 3, 2015, previously published as PCT/IL2010/000999, filed on Nov. 30, 2010.
Claims priority of provisional application 61/264,861, filed on Nov. 30, 2009.
Prior Publication US 2021/0077247 A1, Mar. 18, 2021
Int. Cl. A61F 2/07 (2013.01); A61F 2/90 (2013.01); A61F 2/06 (2013.01)
CPC A61F 2/07 (2013.01) [A61F 2/90 (2013.01); A61F 2002/061 (2013.01); A61F 2250/0039 (2013.01); A61F 2250/006 (2013.01); A61F 2250/0065 (2013.01)] 5 Claims
OG exemplary drawing
 
1. Apparatus comprising a multi-component stent-graft system, which comprises:
a first generally tubular stent-graft, which (i) when unconstrained in a radially-expanded state, defines a first lateral opening having a first lateral opening perimeter, and (ii) is configured for positioning a first end thereof in a descending aorta, and a second end thereof in one of the branches of an aortic arch, with the first lateral opening disposed in the aortic arch facing upstream; and
a second generally tubular stent-graft, which is configured to assume a radially-expanded state, wherein the first and the second stent-grafts are configured such that the second stent-graft forms a blood-impervious seal with the first stent-graft around the first lateral opening when the second stent-graft is disposed therethrough, and the first and second stent-grafts are in their radially-expanded states,
wherein the first stent-graft comprises a first generally tubular support element and a first covering element attached to the first support element so as to at least partially cover the first support element, and the first covering element and the first support element are shaped so as to together define the first lateral opening through the first stent-graft when the first stent-graft is in its radially-expanded state,
wherein the second stent-graft comprises a second generally tubular support element and a second covering element attached to the second support element so as to partially cover the second support element, and
wherein the first and the second stent-grafts are configured such that when the first and the second stent-grafts are in their radially-expanded states and the second stent-graft is disposed through the first lateral opening such that a proximal portion of the second support element is disposed within the first stent-graft:
the second covering element forms the blood-impervious seal with the first covering element around the first lateral opening, and
the second covering element does not fully cover the proximal portion of the second support element, thereby allowing blood flow through the first stent-graft.