Disposable laparoscopic colo-rectal surgical bowel clamps for insertion through trocar tubes are disclosed. The instruments broadly include: a hollow aluminum tube; an aluminum clevis which is formed separately from the aluminum tube with the distal end of the hollow aluminum tube crimped around the proximal end of the clevis; axially off-set pivot pins coupled to the clevis; two bowel clamp blades each having a pivot hole through which the off-set pivot pin of the clevis is pivotally engaged, and each having another through-hole; an aluminum push rod extending at least partially through the hollow aluminum tube and apparatus for imparting reciprocal motion to the push rod relative to the aluminum tube, whereby the reciprocal motion is translated at an offset pivot of the clevis into high leverage pivotal motion of the blades. The blades are configured with bowed intermediate sections, and cutout proximal sections for the grasping and clamping of a bowel portion or other relatively large anatomical parts.