Gastric band adjustment injection. Patient being shown how to adjust their gastric band by injecting saline solution through an implanted port in their abdomen. The port is connected to a tube that leads to the surgically implanted gastric band that constricts the patient's stomach. Gastric bands are used to treat obesity. The band is placed around the stomach near its upper end, restricting the amount of food a patient can eat and helping weight loss. This procedure is carried out as part of bariatrics, the branch of medicine that deals with obesity.
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