Aneurysm treatment with pushable ball segment

A method for treating an aneurysm, the method comprising:

• positioning a first portion of a tubular braided implant, the tubular braided implant comprising a tubular braid, an open end, and a pinched end, within a sac of the aneurysm such that the first portion circumferentially apposes walls within the sac and comprises one or more inversions, including a distal inversion positioned approximate a distal portion of the aneurysm wall;
• expanding a second portion of the tubular braided implant in connection with the first portion of the tubular braided implant radially to occlude a majority of a neck of the aneurysm;
• pressing the second portion distally into the first portion to provide a radial force in a plane defining a boundary between the aneurysm and blood vessel branches against the first portion towards the aneurysm wall approximate the neck of the aneurysm;
• and
• moving the distal inversion toward a distal portion of the aneurysm wall as a result of pressing the second portion distally into the first portion.

A method for forming an occlusive device to treat an aneurysm comprising:

• inverting a tubular braid comprising an open end and a pinched end to form a distal inversion;
• inverting the tubular braid to form a proximal inversion by moving the open end over at least a portion of the braid;
• shaping a first segment of the tubular braid extending between the open end and the proximal inversion;
• shaping a second segment of the tubular braid extending between the proximal inversion and the distal inversion;
• positioning the open end to encircle the second segment;
• shaping a third segment extending from the distal inversion to the pinched end;
• positioning the second segment to surround the third segment;
• shaping a ball segment of the tubular braid extending from the third segment radially outward from a central axis to form a substantially ellipsoid shape and converge at the pinched end;
• and
• applying a mold to the ball segment of the tubular braid and treating the ball segment with heat to conform the ball segment to the formed shape, the ball segment movable along a central axis of the tubular braid.