[A new method of producing small-to-large intestine invagination anastomosis in experimental animals].

A method for formation of the valve apparatus by means of invagination of the end of the small intestine with everted mucosa to the side of a large intestine directly to its stump is suggested. Beforehand the tela submucosa of the evaginated small intestinal end is exposed by linear incision, and is tightened into the interrupted sutures, which are placed on the large intestinal stump. When the pressure arises in the large intestinal lumen, the small intestinal end is pressed to the stump and flattened, thus preventing reflux.