Apparatus and method for forming an anastomosis

Abstract

Apparatus for forming an anastomosis between first and second body lumen wall sections, the apparatus having a coil implant () which has an elongate tubular member () made of shape memory material, the elongate member being self-expanding from a stretched-out stowed configuration for introduction into the body, to an implantation configuration in which a first portion () of the elongate member forms at least a first loop () of the coil and a second portion () of the elongate member forms at least a second loop () of the coil, the elongate member having at least one interior cavity, the coil implant further having a plurality of magnets () carried by the first and second portions of the elongate member, each magnet of the plurality being at least partly accommodated within the at least one interior cavity of the elongate member, the magnets arranged such that the first loop is magnetically attracted to the second loop for creating a magnetic compression anastomosis in tissue trapped between the first and second loops. The loops may have spirals with tailored compression forces and/or tailored flexibility.