US 12,419,641 B2
Apparatus for anastomosing a cut vessel
Kent K. Higdon, Nashville, TN (US); and Stephane A. Braun, Nashville, TN (US)
Assigned to VANDERBILT UNIVERSITY, Nashville, TN (US)
Appl. No. 18/004,495
Filed by Vanderbilt University, Nashville, TN (US)
PCT Filed Jun. 3, 2021, PCT No. PCT/US2021/035754
§ 371(c)(1), (2) Date Jan. 6, 2023,
PCT Pub. No. WO2022/010601, PCT Pub. Date Jan. 13, 2022.
Claims priority of provisional application 63/049,270, filed on Jul. 8, 2020.
Prior Publication US 2023/0240681 A1, Aug. 3, 2023
Int. Cl. A61B 17/11 (2006.01)
CPC A61B 17/11 (2013.01) [A61B 2017/1107 (2013.01); A61B 2017/1132 (2013.01)] 22 Claims
OG exemplary drawing
 
1. An apparatus for anastomosing a cut vessel, the apparatus comprising:
a first ring having longitudinally spaced first and second ring surfaces and an inner surface longitudinally extending between the first and second ring surfaces, the inner surface of the first ring defining an inner lumen configured to receive a first vessel end of the cut vessel, the first ring including an annular central recession between the inner surface and the first ring surface, the annular recession of the first ring being defined by a longitudinally extending recession sidewall and a laterally extending recession floor, the inner surface of the first ring having at least one inner surface spike extending away from the inner surface into the inner lumen, the at least one inner surface spike of the first ring being configured to penetrate a vessel wall of the first vessel end and secure the first ring to the first vessel end, the recession floor of the first ring including at least one floor spike longitudinally extending therefrom for penetrating an everted portion of the first vessel end; and
a second ring having longitudinally spaced first and second ring surfaces and an inner surface longitudinally extending between the first and second ring surfaces, the inner surface of the second ring defining an inner lumen configured to receive a second vessel end of the cut vessel, the second ring including an annular central recession between the inner surface and the first ring surface, the annular recession of the second ring being defined by a longitudinally extending recession sidewall and a laterally extending recession floor, the inner surface of the second ring having at least one inner surface spike extending away from the inner surface into the inner lumen, the at least one inner surface spike of the second ring being configured to penetrate a vessel wall of the second vessel end and secure the second ring to the second vessel end, the recession floor of the second ring including at least one floor spike longitudinally extending therefrom for penetrating an everted portion of the first vessel end;
wherein the first and second rings, after being secured to the first and second vessel ends, are configured to be joined together into direct engagement to anastomose the cut vessel.