Unfortunately, previous surgery on the stomach is an absolute contraindication to intragastric balloon placement. This refers to the organ the stomach only, surgery in other parts of the abdomen, like gall bladder removal or hysterectomy do not prevent intragastric balloon usage. You still have many options. Previous adjustable gastric band does not prevent you from having vertical sleeve gastrectomy or gastric bypass.
Yes you can get the balloon but you may not lose as much weight as you may think. The balloon is for people that want to lose 20 to 30 pounds at best. Why not get the gastric sleeve. The sleeve is more permanent and will give you a lot more weight loss. you will be happier in the long run.