Self-opening and self-plugging bottle stopper

A bottle stopper adapted for self-opening and self-plugging a bottle, comprising:

• a cylindrical cover (4) having a bottom end and a top end, wherein the cylindrical cover is sized and shaped to plug the bottle;
• a cartridge (16) encompassed by the cylindrical cover and having a fluid chamber;
• a pressure release channel;
• a conduit (20) having a proximal end with at least one lateral inlet and at least one release opening and a distal end with at least one lateral outlet;
• and
• an activation cap (10) mounted to push the conduit along a longitudinal axis of the cylindrical cover from a closed state to an open state;
• a pressure valve (130) confining a sealing object in an inner channel fluidly connecting between the at least one release opening and the pressure release channel, the pressure valve having a pressure relief port with a seat sized and shaped to receive the sealing object;
• wherein the at least one lateral outlet the at least one lateral inlet and the at least one release opening are fluidly connected by one or more fluid channels;
• wherein in the open state, the at least one lateral outlet extends beyond the bottom end and the at least one lateral inlet is fluidly connected to the fluid chamber;
• wherein in the closed state the at least one lateral outlet and the at least one lateral inlet are mounted between the bottom end and the top end.