WASHINGTON (AP) — A new weight loss device offers a novel approach to cutting calories: draining them from the stomach before they are fully digested.

The AspireAssist system consists of a thin tube implanted in the stomach, connecting to an outside port on the skin of the belly. About 20 minutes after finishing a meal, users connect the port to an external device, which drains some of the recently-consumed food into the toilet.

The manufacturer — Aspire Bariatrics based in King of Prussia, Pennsylvania — says its system removes about 30 percent of food stored in the stomach before it begins causing weight gain.