Methods, devices, and systems for obesity treatment

A system for obesity treatment, comprising:

• a space-occupying balloon subsystem configured for delivery via an esophagus of a patient and inflation after placement within a gastric cavity of the patient, wherein
• the space-occupying balloon system comprises two or more inflatable gastric balloons, each balloon of the two or more inflatable gastric balloons comprising a respective inflation lumen, wherein,
• prior to the inflation via the inflation lumen, each balloon of the two or more inflatable gastric balloons has a major dimension no larger than two centimeters;
• and
• an inflation subsystem comprising
• an inflation tube releasably attachable to the inflation lumen of each balloon of the two or more inflatable gastric balloons for inflating the respective balloon in the gastric cavity of the patient, and
• a fluid delivery apparatus for coupling to the inflation tube, wherein at least one gas is delivered to each balloon of the two or more inflatable gastric balloons via the fluid delivery apparatus, wherein the at least one gas is selected to provide buoyancy for floatation of the two or more inflatable gastric balloons within the gastric cavity;
• wherein, after the inflation,
• the two or more inflatable gastric balloons arrange along a generally kidney shaped curve such that the two or more inflatable gastric balloons are configured to align against the greater or lesser curvatures of the gastric cavity, and
• each balloon of the two or more inflatable gastric balloons is released from the inflation tube such that each balloon of the two or more inflatable gastric balloons is configured to float untethered within the gastric cavity of the patient.

A system for obesity treatment, comprising:

• an obesity treatment apparatus comprising
• at least two expandable balloons, wherein each balloon of the at least two expandable balloons comprises a means for receiving and retaining one or more gasses, and
• a means for conforming the obesity treatment apparatus, in an inflated state, to a natural three-dimensional kidney shape of the stomach, wherein
• the obesity treatment apparatus is configured for delivery via an esophagus of a patient in an uninflated state, and
• upon inflation, each balloon of the at least two expandable balloons is configured to occupy a respective volume in a stomach of the patient;
• and
• an inflation apparatus comprising
• an inflation catheter releasably securable to the means for receiving and retaining the one or more gasses of each balloon of the at least two expandable balloons for inflating the respective balloon in the stomach of the patient, and
• an external pressurized fluid source for coupling to the inflation catheter, wherein
• one or more gasses of the external pressurized fluid source are selected to provide buoyancy to the obesity treatment apparatus within the stomach, and
• each balloon of the at least two expandable balloons is filled with a same one or more gasses;
• wherein, after inflating each expandable balloon with the one or more gasses through the inflation catheter using the pressurized fluid source and releasing the inflation catheter from the respective balloon,
• the obesity treatment apparatus is configured to float freely within the stomach of the patient without exerting pressure at any point in the stomach sufficient to cause ulceration.