Effect of ‘’closed-loop feedback intelligent infusion’’ intelligent analgesia pump on postoperative rehabilitation of patients undergoing laparoscopic radical resection of colorectal cancer

Interventions: intelligent adjustment group (group A):Application of ‘’closed-loop feedback automatic medication’’ intelligent pain pump for postoperative venous pain;Normal intelligent group (Group C) :Application of common intelligent pain pump for postoperative venous pain Primary outcome(s): The 15-item quality of recovery, QoR-15 Study Design: Parallel