A system for inflating an inflatable intragastric device , comprising: an inflation fluid container having an inflation fluid container aperture and a reservoir holding an inflation fluid; an inflation fluid dispenser securely coupled to the inflation fluid container and comprising: a housing with an inner surface defining a channel having a proximal inlet coupled to the inflation fluid container aperture and a distal outlet positioned at a distal end of the inflation fluid dispenser ; a valve disposed in the channel and configured to transition between a closed state and an open state; and a valve control coupled to the valve and configured for manipulation by a user to transition the valve between the closed state and the open state, an inflatable intragastric device having an inner cavity and a proximal aperture; and a catheter coupled to the inflatable intragastric device , the catheter having a lumen positioned between, and in fluid connection with, the channel of the inflation fluid dispenser and the proximal aperture of the inflatable intragastric device , characterised in that the inflation fluid dispenser further comprises: a pressure gauge configured to measure pressure within the channel between the valve and distal outlet, and a barometric pressure compensation valve configured to release a portion of the inflation fluid from the inflation fluid container through a vent to achieve a target starting volume within the inflation fluid container . an inflation fluid container having an inflation fluid container aperture and a reservoir holding an inflation fluid; an inflation fluid dispenser securely coupled to the inflation fluid container and comprising: a housing with an inner surface defining a channel having a proximal inlet coupled to the inflation fluid container aperture and a distal outlet positioned at a distal end of the inflation fluid dispenser ; a valve disposed in the channel and configured to transition between a closed state and an open state; and a valve control coupled to the valve and configured for manipulation by a user to transition the valve between the closed state and the open state, a housing with an inner surface defining a channel having a proximal inlet coupled to the inflation fluid container aperture and a distal outlet positioned at a distal end of the inflation fluid dispenser ; a valve disposed in the channel and configured to transition between a closed state and an open state; and a valve control coupled to the valve and configured for manipulation by a user to transition the valve between the closed state and the open state, an inflatable intragastric device having an inner cavity and a proximal aperture; and a catheter coupled to the inflatable intragastric device , the catheter having a lumen positioned between, and in fluid connection with, the channel of the inflation fluid dispenser and the proximal aperture of the inflatable intragastric device , a pressure gauge configured to measure pressure within the channel between the valve and distal outlet, and a barometric pressure compensation valve configured to release a portion of the inflation fluid from the inflation fluid container through a vent to achieve a target starting volume within the inflation fluid container . <EOS>