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Related Concept Videos

Endoscopic Procedures IV: Sigmoidoscopy and Laproscopy01:26

Endoscopic Procedures IV: Sigmoidoscopy and Laproscopy

177
Sigmoidoscopy and laparoscopy are distinct medical procedures that enable physicians to internally inspect different parts of the GI tract. Although they serve different purposes, each is essential for diagnosing and, in some cases, treating various medical conditions.
Sigmoidoscopy
Sigmoidoscopy is a diagnostic procedure that uses a flexible sigmoidoscope equipped with a light source and camera to examine the rectum and sigmoid colon. The procedure involves inserting the tube through the anus...
177

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Related Experiment Video

Updated: Sep 14, 2025

Robotics in Surgery: A Modular Robotic Platform Driven Gastric Wedge Resection
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First-in-human robot-assisted laparoscopic sigmoid resection using ANSUR surgical unit®.

H Hasegawa1,2, N Takeshita1,2, D Kitaguchi1,2

  • 1Department of Colorectal Surgery, National Cancer Center Hospital East, 6-5-1 Kashiwanoha, Kashiwa, Chiba, 277-8577, Japan.

Techniques in Coloproctology
|July 18, 2025
PubMed
Summary

This study details the first robot-assisted laparoscopic sigmoid resection for colon cancer using the novel ANSUR surgical unit. The procedure demonstrated technical and oncological safety, with successful tumor removal and uneventful patient recovery.

Keywords:
ANSURRobot-assisted surgerySigmoid colon cancerSigmoid resection

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Area of Science:

  • Robotics in Surgery
  • Surgical Oncology
  • Minimally Invasive Procedures

Background:

  • The ANSUR surgical unit, a new robot functioning as first assistant and scopist, received medical device approval in Japan in 2023.
  • This report presents the initial clinical application of this innovative surgical system.

Purpose of the Study:

  • To document the first instance of robot-assisted laparoscopic sigmoid resection for sigmoid colon cancer utilizing the ANSUR surgical unit.
  • To evaluate the safety and feasibility of this novel robotic system in a clinical setting.

Main Methods:

  • A 69-year-old female patient with advanced sigmoid colon cancer underwent robot-assisted laparoscopic sigmoid resection.
  • The procedure employed the ANSUR surgical unit for the surgical intervention.

Main Results:

  • Successful tumor resection was achieved without conversion to open surgery.
  • Operative time was 147 minutes with 36 mL estimated blood loss; no device malfunctions or adverse events occurred.
  • The patient was discharged on postoperative day 5 with no complications, and histopathology confirmed stage IIIB disease with clear margins.

Conclusions:

  • This case represents the first successful robot-assisted laparoscopic sigmoid resection for sigmoid colon cancer using the ANSUR surgical unit.
  • The procedure was technically safe and oncologically sound, indicating the potential of the ANSUR system.