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1. (WO2017040884) DEVICE TO AID IN ARTERIAL MICROVASCULAR ANASTOMOSIS

Pub. No.:    WO/2017/040884    International Application No.:    PCT/US2016/050037
Publication Date: Fri Mar 10 00:59:59 CET 2017 International Filing Date: Sat Sep 03 01:59:59 CEST 2016
IPC: A61B 17/11
A61M 25/10
Applicants: THE REGENTS OF THE UNIVERSITY OF MICHIGAN
Inventors: PLOTT, Jeffrey, Stephen
CEDERNA, Paul, S.
BOELKINS, Kirsten
KOZLOW, Jeffrey, H.
ZWIER, Jonathan, William
MAHAJAN, Krishna
LUIBRAND, Kelsey, L.
SISOLAK, Martin
KWON, Sebastian
FARBERG, Aaron, S.
MOMOH, Adeyiza
SHIH, Albert, J.
Title: DEVICE TO AID IN ARTERIAL MICROVASCULAR ANASTOMOSIS
Abstract:
An everter device to facilitate preparation of ends of arterial segments for end-to-end microvascular anastomosis. The device includes structure that provides sufficient support to prevent unwanted buckling of arterial tissue. The everter device offsets the tendency of the arterial tissue wall to recover its natural shape and fall off securement posts or pins of a coupler ring. The structure may be in the form of an intraluminal catheter balloon. Alternately, the structure may be in the form of a plunger. Alternately, the structure may be in the form of a radially expanding member provided on a shaft. The device further has a contoured surface on an everter end to evert a free end of arterial tissue over a coupler ring, and to cause the posts or pins of the coupler ring to pierce through the everted arterial tissue. The everter end is provided with one or more openings therein, such as a circumferential slot, to receive the posts or pins of the coupler ring.