In accordance with the present invention, there is provided A method for implanting surgical device. The method involves providing a surgical device comprising an elongated flexible inflatable portion, an elongated flexible and substantially inextensible band portion having a distal end and a proximal end, and an inflatable portion. The band portion is attached to the inflatable portion along an inner face thereof. The band portion has a concave cross section when taken perpendicular to its longitudinal axis. The method involves deforming the band, so that it has a substantially flat cross section when taken perpendicular to the longitudinal axis, by encircling the band around body tissue.