The circular stapler is used in general surgery, thoracic surgery, surgical treatment of obesity and in colo-rectal surgery, to perform end-to-end, side-to-end, and side-to-side anastomoses. This type of stapler is available in diameters: - curved - from 17mm up to 34mm - straight - from 32mm up to 36 mm. The stapler utilizes titanium staples in circular staggered assembly of two concentric rings inside the staples-containing cartridge. The circular blade automatically cuts off any tissue excess during staple release and creation of circular anastomosis. The stapler can be easily operated by complete squeeze of the trigger handle. Dimension of anastomosis is defined by the size of the selected circular staples-containing cartridge.