Methods and apparatus for magnet-induced compression anastomosis between adjacent organs

A kit for creating a compression anastomosis between a biliary tract of a gallbladder and an adjacent organ, comprising:

• a parent magnet adapted for placement in the adjacent organ, being sized to fit within an introducing instrument and adapted to create a compression anastomosis;
• one or more second magnets or magnetic materials adapted for placement in the biliary tract of the gallbladder, to be attracted to the parent magnet to form a daughter magnet;
• and
• an endoscopic ultrasound guided fine needle aspiration needle pre-loaded with the one or more second magnets or magnetic materials within the endoscopic ultrasound guided fine needle aspiration needle, wherein the one or more second magnets or magnetic materials comprise a train of daughter magnet components, each daughter magnet component carrying two miniature magnets of variable magnetic polarity, the train of daughter magnet components sequenced to yield a larger mating area upon self-assembly in the gallbladder than would be possible with any single component.