Transcript for New Weight Loss Product Gets FDA Approval for Obese
In medical news this morning scientists say a revolutionary new device the size of a match box could be the most effective weapon yet in the fight against obesity and ABC's linsey Davis explains how it works. Reporter: This morning, new hope for the nearly one-third of obese adult Americans in the form of a tiny implant. Call the v-block. The fda approved pacemaker-like device is implanted into the abdomen. It works by sending electrical pulses through the nerve pathway between the brain and the stomach helping patients to feel full. The patients have less hunger, more hasatiety. Reporter: It is only available to those severely overweight and have at least one medical problem related to obesity. In trials the average patient lost 28% of their excess body weight. It only takes a short outpatient proceed 4r50ur to insert the device now commercially available in the U.S. For Mike who has been using the v-bloc the results have been life changing. I've lost 70 pounds. My blood pressure, I've cut my medication in half. Reporter: But doctors caution this is not a quick fix. There are some risks here. Nausea, chest pain, you don't want to go into this without fully considering all of your options. Reporter: For "Good morning America," linsey Davis, ABC news, New York.
This transcript has been automatically generated and may not be 100% accurate.