A band forming apparatus for banding an internal body part and method of using same. The band forming apparatus is initially supplied as a relatively straight structure so that it can be, for example, inserted through a catheter or narrow incision such as when using endoscopic or robotic surgery techniques. Alternatively, the band forming apparatus may be used or inserted using conventional surgical techniques. In use, the initially straight assembly can be formed into a loop or band around an internal body part. Embodiments of the band forming apparatus include a compressible tube having first and second tube ends and an orifice in the tube wall between the first and second tube ends. A string is received in the tube, the string having a first end extending out of the first end of the tube and a second end extending out of the orifice. Alternatively the second string end may extend out of the second tube end. Means are provided for drawing an securing the band forming apparatus into a band of selected diameter.