5G remote-controlled snake-arm single-port robotic pneumovesical Cohen ureteroneocystostomy: first animal study

To explore the initial technical feasibility of 5G remote-controlled single-port robotic-assisted pneumovesical ureteroneocystostomy (Cohen procedure) in an animal model, and to provide preliminary experimental evidence for this integrated surgical approach.

A healthy female juvenile Landrace crossbred pig (3-4 months old, 32 kg) was used as the experimental model. The procedure was performed at the Animal Experimental Center of Surgerii Robotics Co., Ltd., with remote control via 5G network from Fujian Children's Hospital. A snake-arm single-port robotic system was utilized to perform pneumovesical ureteroneocystostomy (Cohen procedure). Technical feasibility and parameters were evaluated.

The surgery was successfully completed with total operative time of 92 min and blood loss of 6 mL. The 5G network maintained stable video transmission and real-time control throughout the procedure. No major intraoperative complications occurred, and the animal recovered uneventfully during the 24-hour observation period. Anatomical examination confirmed accurate ureteral reimplantation, patent anastomosis, and absence of urinary extravasation.

This study successfully implemented 5G remote-controlled snake-arm single-port robotic-assisted pneumovesical ureteroneocystostomy (Cohen procedure) in an experimental animal model for the first time. The single-case piglet model demonstrated the initial technical feasibility and provided a proof-of-concept for its procedural feasibility under experimental conditions. It provides important technical support for minimally invasive treatment of vesicoureteral reflux in children, with promising potential for future research.