Table 2.

The test and data acquisition schedule for this experiment. Intraoperative anal water injection experiments and infiltration by ICG fluorescence were performed to ensure the quality of the anastomosis

Trial flow chart
Stage		Preoperative		Intraoperative		Postoperative		Unplanned follow-up
Follow up period	2–3 days	1 day	Intraoperative	1 day	3 days	5 days	14 days	30 days	Unplanned follow-up
Baseline data collected	√	—	—	—	—	—	—	—	—
inclusion and exclusion	√	—	—	—	—	—	—	—	—
Sign informed consent	√	—	—	—	—	—	—	—	—
Group determination	√	—	—	—	—	—	—	—	—
Fill in the basic information	√	—	—	—	—	—	—	—	—
Physical examination	√	—	—	—	—	—	—	—	—
Imaging examination	√	—	—	—	If necessary	If necessary	√	If necessary	If necessary
Blood routine examination	√	—	—	—	√	√	√	If necessary	If necessary
Oral antibiotics	—	√	—	—	—	—	—	—	If necessary
Safety observation	—	—	√	√	√	√	√	√	If necessary
Operational observation	—	—	√	—	—	—	—	—	If necessary
Record adverse events	—	—	√	√	√	√	√	√	If necessary
Other works	√	√	√	√	√	√	√	√	If necessary