The ColonRing device is intended to be used for the creation of intestinal anastomoses in colorectal surgery in both open and laparoscopic surgeries. This indication is within the currently cleared indication of the ColonRing device, which has been cleared by the US FDA and carries the CE Mark for use throughout the alimentary trct for the creation of circular end-to-end, side-to-end or side-to-side anastomosis.

Anastomotic leakage is defined as evidence of a defect in the intestinal wall integrity at the anastomotic site leading to a communication between the intra and extra luminal compartments.

The Following complications will be examined:

Bleeding. Stricture (either clinical evidence of a stricture or the inability to pass a 12 mm sigmoidoscope through the anastomosis in a procedure that does not include a diversion). Septic complication (including wound infection, pelvic infection, peritonitis, abscess) Readmission, re-operation, death within two months of the procedure Extra colonic complications (including urinary infection, urinary retention, DVT, pneumonitis, pulmonary embolism, cardiac, injury to other organs - e.g. spleen, ureter)

The following post operative measures will be reported:

Hospitalization duration (two dates will be recorded: ready for discharge and discharge). The latter noting where the patient was discharged to - e.g. nursing home or home. First day to first postoperative flatus. First day to first postoperative bowel movements. First day of first postoperative toleration of liquids and solids (time to "keeping them down")