Patent ID: 8231642

Claim:
A method for performing anastomotic surgery to anastomose two cutout pieces of an intestine including an anus-side piece and a stomach-side piece using an anastomotic device including a device main body to be inserted from an anus to the anus-side piece of the cutout intestine and a head to be inserted to the stomach-side piece of the cutout intestine, the device main body and the head having an engaging rod projecting therefrom, the projecting engaging rod to engage with the other one of the device main body and the head and to be retracted into the device main body thereby anastomosing the anus-side piece and the stomach-side piece of the intestine, the method comprising: providing an intestinal anastomotic surgery aid to be attached to the device main body of the anastomotic device, the intestinal anastomotic surgery aid including a cylindrical portion covering the device main body side of the engaging rod while maintaining a distance from an outer face of the engaging rod, and while the device main body and the engaging rod of the device main body are attached to each other, wherein the cylindrical portion is held to the device main body, and the anus-side piece of the intestine is held to an outer face of the cylindrical portion; and wherein the engaging rod is provided to project from the device main body towards an inserting direction of the device main body; providing the intestinal anastomotic surgery aid with a detachable cover member to cover a distal end part of the engaging rod of the cylindrical portion; wherein the cylindrical portion covers the engaging rod that projects from the device main body of the anastomotic device, and the cylindrical portion has a diameter larger than a diameter of the engaging rod projected from the device main body; tying the anus-side piece of the intestine to the cylindrical portion using a suture; and sandwiching the cylindrical portion between the head and the device main body in an axial direction and crushing and deforming the cylindrical portion when the head of the anastomotic device is moved closer to the device main body to strike staplers; wherein the cylindrical portion of intestinal anastomotic surgery aid has an outer circumference provided with projected lines with which the intestine tied by the suture is engaged.