The placement takes place during a less than 15-minute outpatient visit. Allurion is the first gastric balloon that requires no endoscopy* or anaesthesia for placement or removal. Simply swallow a capsule containing the deflated Balloon with a catheter: once the Balloon is confirmed to be in your stomach via x-ray, the Balloon is filled with water through a catheter. A second x-ray takes place to ensure the Balloon is filled correctly.