Method and apparatus for treating obesity and controlling weight gain using adjustable intragastric devices

An intragastric space-occupying device configured to be positioned within a stomach for treating excessive weight or obesity in mammals, comprising:

• an inner rod;
• a first outer rod and a second outer rod surrounding the inner rod, the plurality of outer rods moveable along the inner rod, the plurality of outer rods each being movable between an outer first position and an inner second position;
• a first plurality of support structures, each of the first plurality of support structures having a first end connected to the inner rod and a second end connected to the first outer rod, the first plurality of support structures being in a collapsed position when the first outer rod is in the outer first position and being in an extended position when the first outer rod is in the inner second position;
• a second plurality of support structures, each of the second plurality of support structures having a first end connected to the inner rod and a second end connected to the second outer rod, the second plurality of support structures being in a collapsed position when the second outer rod is in the outer first position and being in an extended position when the second outer rod is in the inner second position;
• and
• a covering positioned on the first plurality of support structures and the second plurality of support structures.