Intragastric device

An intragastric volume-occupying device system, comprising:

• an outer container configured to be swallowable and to degrade in an in vivo gastric environment;
• a balloon having a lumen, a port, and a self-sealable valve or septum, wherein the balloon is provided in a compacted state and contained within the outer container;
• tubing attached to the port of the balloon and configured to fill the lumen of the balloon with a liquid inflation fluid in vivo, wherein the tubing is further configured to be detached from the port by applying a gentle force or tug on the tubing and to be pulled away from the balloon and out from inside a patient, and wherein the self-sealable valve or septum is configured to seal when the tubing is pulled away from the balloon;
• and
• a delivery tool comprising a reservoir and a plunger, the delivery tool containing the liquid inflation fluid and configured to inject the liquid inflation fluid into the lumen of the balloon via the tubing and the self-sealing valve.