The Obalon Balloon. The power of innovation applied to weight loss.

The Obalon Balloon is the first balloon that allows for placement by simply swallowing a capsule. No sedation or anesthesia is required. The balloon uses advanced materials specifically designed to meet the rigors of the gastric environment. The capsule delivery allows placement of additional balloons to stimulate further weight loss over a 3-month treatment period. A buoyant balloon residing in the fundus with a smaller initial balloon size makes the balloon easy to tolerate. The result is a first choice weight loss therapy that helps patients feel full faster so they eat less and achieve their weight loss goals.

The Obalon Balloon is engineered to deliver meaningful weight loss in a convenient, easy-to-manage therapy:

  • Easy To Place: Unique, swallowable capsule allows simple balloon placement in about 10 minutes* without sedation or anesthesia
  • Well Tolerated: Lightweight, gas-filled design and smaller initial size improves patient comfort
  • Customized Therapy: Easy to add volume with additional balloons during therapy based on patient tolerability and to further stimulate weight loss
  • Durable Design: Novel composite materials designed specifically to withstand the chemical and mechanical stresses in the stomach
  • Short Treatment Period: Excellent weight loss results in a 3-month treatment period to keep patients engaged
  • Easy To Remove: Low profile design and advanced materials make endoscopic removal fast and easy. No special tools are required.

The Obalon System

The Obalon Balloon has CE Mark Approval with the following indications for use:

The Obalon gastric balloon system is indicated for temporary use for weight loss in overweight and obese adults with a body mass index—BMI—of 27 or greater who have previously failed a supervised weight control program. The Obalon gastric balloon system is intended to be used in conjunction with a diet and behavior modification program.

Up to 3 Obalon Balloons may be placed in the stomach across a 3-month (12-week) period based on the individual’s weight loss progress and satiety levels. The maximum placement period for the Obalon Balloon(s) is 3 months (12 weeks) and all balloons must be removed at that time or earlier.

The Obalon system features three primary elements:

  • Swallowable capsule with the balloon folded inside
  • Miniature catheter attached to the capsule for rapid balloon inflation and easy catheter removal
  • Light, buoyant, 250 cc Balloon filled with gas that resides in the fundus

Course of treatment: A 3-month therapy period delivers repeatable weight results. Second or third balloons can be added throughout the treatment period to stimulate further weight loss. At the end of the 3-month period, the balloons are quickly removed in a short endoscopic procedure using light sedation and standard commercially available tools.

See how it works

The next big idea in medical weight loss technology just got easier. Introducing the newest Obalon Inflation System.

The EzFill Dispenser™ is a handheld inflation device for transferring gas to the Obalon Balloon, and the EzFill Can™ is a single use canister that contains the gas for balloon inflation. The system provides a straightforward process for preparing and administering the Obalon Balloon.

See how it works

The Obalon Balloon provides a first choice weight loss therapy for your patients who are seeking medical intervention due to the frustration of failing conventional diet programs.

Clinical Results

Three studies have evaluated the clinical performance of the Obalon Balloon. The weight loss results are summarized below. More detailed data can be accessed via the links below.



Published abstracts

50.2% Excess Weight Loss 8.3% of Total Body Weight Loss and 2.8 point reduction in BMI in 3 months*

Easily placed. Well tolerated. 
Customizable. Effective.

Patient Selection: First choice therapy option for your patients who are frustrated by failing conventional diet programs and are willing to consider an interventional approach, but do not want surgery. See Indications for Use for more specific information.

Course of treatment: A 3-month therapy period delivers repeatable weight loss in a period of time that keeps patients engaged. Second or third balloons can be added throughout the treatment period to stimulate further weight loss.

Removal: Fast and easy in a short endoscopic procedure using standard commercially available tools.

  • Capsule delivery allows easy placement and ability to customize therapy for each patient by placing additional balloons to further stimulate weight loss throughout the therapy period
  • Hydrophilic coating to facilitate easy swallowing
  • Small diameter (2 French), highly flexible catheter for easy, reliable placement
  • High strength tubing allows rapid, reliable balloon filling
  • Low profile, small diameter valve provides reliable inflation and seal. Radiopaque for visualization under x-ray.
  • Lightweight (less than 6 grams), buoyant 250cc balloon that floats high in the stomach for maximum effect with excellent patient tolerance
  • Durable, multi-layered, high-strength composite film that is resistant to chemical and mechanical forces of the stomach