*3.1.5 Articular circular stapling device (ACE)*

The articular circular stapling device (**Figure 5**) (BaroSense, Redwood City, CA; Boston Scientific Corp., Marlbourough, MA) is an investigational device which applies full-thickness transmural plications of the stomach wall aided by vacuum and stapling.

#### **Figure 5.**

*The ACE stapler: after the tissue is acquired by vacuum, plications are made with a circular staple ring in 10 locations in the stomach (from [34], with permission).*
