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<b>Objectives:</b> To evaluate the efficacy of a novel intestinal diversion stent in the treatment of anastomotic leakage following mid-to-low rectal surgery. <b>Methods:</b> A retrospective analysis was conducted on three patients diagnosed with mid-to-low rectal anastomotic leakage treated with a novel intestinal diversion stent at Dongguan TungWah Hospital and the Sixth Affiliated Hospital of Sun Yat-sen University between April 2022 and February 2025. The stent measures 16 cm in total length, comprising a proximal dilated segment (length: 2.5 cm; inner diameter: 3.3 cm) and a body segment (length: 13.5 cm; inner diameter: 1.6 cm). Stents were inserted transanally under digital guidance, ensuring the proximal dilated segment bridged the anastomosis, while the distal end was secured to the perianal skin. Clinical outcomes and complications were evaluated. <b>Results:</b> Stent placement was successful in all three patients within 24 hours of the diagnosis of anastomotic leakage. Following placement, patients underwent rigorous dietary management and received nutritional support. No stent-related complications, such as hemorrhage, anal injury, migration, or dislodgement, were observed. Stents were successfully removed transanally at the bedside 9-14 days post-implantation. No patients required secondary surgical intervention or diverting stoma creation. <b>Conclusions:</b> The novel intestinal diversion stent appears to be a safe and effective therapeutic option for selected patients with rectal anastomotic leakage, potentially eliminating the need for reoperation. Further clinical studies are warranted to better define indications and the eligible patient population.