“…The small intestinal intussusception valve de scribed by Turnbull and Higgins ( 1 ), further modi fied by Kock (2,3) has been established by us as a good valvular mechanism to prevent reflux in experimental animal studies as well as in clinical application (4,5). In 1957, Grey et al (6) reported their clinical experiences in 2 patients with a ureteric intussusception valve to prevent reflux.…”