Magnetic anastomosis devices and methods of delivery

A method of forming an anastomosis comprising:

• providing a system comprising:
• a magnetic compression anastomosis device comprising a plurality of magnetic segments that self-assemble from an unassembled state into an assembled state having a geometric shape including a polygon or ring and a plurality of individual guide elements, each of the plurality of guide elements having a distal end directly coupled to a respective one of a set of the plurality of magnetic segments;
• an access device configured to provide access to an anatomical structure within a subject, the access device including an elongate manipulator within the access device and being independently translatable and rotatable relative to the access device, the elongate manipulator couplable to at least one of the plurality of guide elements;
• and
• a tension device separate from the magnetic compression anastomosis device and comprising a plurality of control members configured to independently receive input from a user, wherein each of the plurality of control members is directly coupled to a proximal end of a respective one of the plurality of guide elements and is configured to separately control an amount of tension applied to the respective guide element coupled thereto based upon direct user input with the control member;
• operating at least one of the plurality of control members to manipulate the magnetic compression anastomosis device in at least one of the unassembled state or the assembled state;
• and
• operating the elongate manipulator to direct placement of the magnetic compression anastomosis device relative to the anatomical structure within the subject, wherein the elongate manipulator is coupled to the at least one of the plurality of guide elements.