Section 876.4270 - Colostomy rod(a)Identification. A colostomy rod is a device used during the loop colostomy procedure. A loop of colon is surgically brought out through the abdominal wall and the stiff colostomy rod is placed through the loop temporarily to keep the colon from slipping back through the surgical opening.(b)Classification. Class II (special controls). The device is exempt from the premarket notification procedures in subpart E of part 807 of this chapter subject to the limitations in § 876.9 .48 FR 53023, Nov. 23, 1983, as amended at 84 FR 71813 , Dec. 30, 2019