US Patent 8725435 Syringe-based leak detection system

Generally described herein are devices, methods and systems related to detecting a leak present in a gastric banding system for the treatment of obesity. For example, a leak detector may include a syringe, a leak sensing unit and a needle, and may measure a pressure decay within a gastric banding system after the needle penetrates the patient's skin and is inserted into an access port connected to the gastric band of the gastric banding system. The pressure decay may be interpreted to determine if a leak is present in the gastric banding system.