Precision Liver Preservation Achieved: Prof. Zhou Baoyong’s Team Successfully Performs Complex Hepatic Lesion Resection Using Sentire® Surgical Robot

Recently, the team led by Professor Zhou Baoyong, Director of the Department of Hepatobiliary and Pancreatic Surgery at Bishan Hospital Affiliated to Chongqing Medical University, successfully performed a challenging robot-assisted resection of focal nodular hyperplasia (FNH) of the liver on a young patient, utilizing the Sentire® surgical robot independently developed by Cornerstone Robotics. During the procedure, faced with a large lesion in the right lobe of the liver located in a complex anatomical position, the team successfully completed the resection by leveraging their mature minimally invasive techniques and the precise assistance of the robotic system. Intraoperative blood loss was less than 50 ml. This achievement fully demonstrates the technical expertise of the Department of Hepatobiliary and Pancreatic Surgery at Bishan Hospital Affiliated to Chongqing Medical University in performing complex liver surgeries, and further validates the clinical application value of the Sentire® system in precise, minimally invasive treatment for complex hepatobiliary procedures.

The patient undergoing surgery in this case is a young individual in whom a right hepatic mass was detected during a routine physical examination. Further evaluation indicated focal nodular hyperplasia (FNH) of the right liver, with the lesion measuring approximately 77 × 51 mm. Due to the large size of the lesion and its location in the right liver, adjacent to critical vascular structures, the primary challenges of this surgery were to achieve complete resection of the lesion while preserving as much normal liver tissue as possible and minimizing intraoperative blood loss.

Given the liver’s rich blood supply and complex anatomical structure, particularly in the right lobe region—which is adjacent to major blood vessels—and the limited surgical field and operating space caused by large tumor volume, stringent requirements are imposed on the surgeon’s anatomical identification capabilities, as well as on the precision of the instruments and the stability of the system. To ensure the patient’s postoperative quality of life, Professor Zhou Baoyong’s team, after rigorous preoperative assessment, decided to perform minimally invasive surgery using the Sentire® laparoscopic surgical robot.

During the procedure, Professor Zhou Baoyong leveraged the high-definition 3D wide-field visualization provided by the Sentire® system to clearly identify the hepatic vascular anatomy and lesion boundaries, thereby achieving precise tissue dissection. Faced with lesions involving multiple segments of the right liver, Professor Zhou fully utilized the flexible and precise maneuverability of the Sentire® articulating instruments to perform meticulous resection along the lesion margins. The lesion was successfully removed while adequately preserving normal hepatic parenchyma and critical vascular structures.

Throughout the procedure, the Sentire® system’s stable and clear surgical field visualization, flexible and precise steerable instruments, and tremor filtration function provided robust support for delicate dissection and precise hemostasis. The entire surgery proceeded smoothly, with intraoperative blood loss of less than 50 mL, and the patient experienced a favorable postoperative recovery.

Hepatectomy has always been one of the most challenging procedures in hepatobiliary surgery due to the complex anatomical structures, rich blood supply, and high risk of intraoperative bleeding. With the advancement of robotic technology, complex hepatectomies are continuously evolving toward greater precision and minimally invasive approaches. The successful completion of this robot-assisted resection for focal nodular hyperplasia of the liver not only demonstrates the solid expertise in minimally invasive techniques of the Hepatobiliary and Pancreatic Surgery Team at Bishan Hospital Affiliated to Chongqing Medical University but also represents another successful practice of domestically produced innovative technology empowering precise treatment in complex hepatobiliary surgery. Cornerstone Robotics will continue to adhere to its technical path of independent research and development and vertical integration, closely aligning with actual clinical needs,Using High-Quality Surgical Robotic TechnologyEmpower more frontline clinical experts to deliver high-quality surgical treatment solutions to more patients.