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Updated: May 15, 2026

Design and Fabrication of an Elastomeric Unit for Soft Modular Robots in Minimally Invasive Surgery
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Developing essential rigid-flexible outer sheath to enable novel multi-piercing surgery.

Siyang Zuo1, Takeshi Ohdaira, Kenta Kuwana

  • 1Graduate School of Information Science and Technology, University of Tokyo, Japan. sa.siyou@atre.t.u-tokyo.ac.jp

Medical Image Computing and Computer-Assisted Intervention : MICCAI ... International Conference on Medical Image Computing and Computer-Assisted Intervention
|January 5, 2013
PubMed
Summary
This summary is machine-generated.

A novel rigid-flexible outer sheath device enhances minimally invasive surgery by improving tissue closure, stability, and visualization. This innovation addresses key challenges in natural orifice transluminal endoscopic surgery and needlescopic surgery.

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Area of Science:

  • Minimally Invasive Surgery
  • Surgical Device Engineering
  • Gastrointestinal Endoscopy

Background:

  • Natural orifice transluminal endoscopic surgery (NOTES) faces challenges in tissue closure, triangulation, and platform stability.
  • Needlescopic surgery (NS) is limited by a restricted visual field, potential organ damage, and difficulties in specimen retrieval.
  • Existing surgical technologies require மேம்படுத்தல் to overcome these limitations for safer and more effective procedures.

Purpose of the Study:

  • To develop and evaluate a novel rigid-flexible outer sheath device designed to address limitations in NOTES and NS.
  • To introduce a device with enhanced maneuverability, stability, and integrated functionalities for advanced endoscopic procedures.

Main Methods:

  • Development of a rigid-flexible outer sheath incorporating a pneumatic shape-locking mechanism for selective shape control.
  • Integration of four-directional distal flexion, four working channels, and suction/water jet capabilities.
  • In vivo testing of the prototype device in a swine model for partial gastrectomy.

Main Results:

  • The novel outer sheath system demonstrated successful pre-clinical performance in a swine model.
  • The device's shape-locking mechanism allowed for selective rigidity and flexibility.
  • The integrated features facilitated complex surgical maneuvers during the partial gastrectomy procedure.

Conclusions:

  • The developed rigid-flexible outer sheath system shows significant promise for overcoming critical challenges in NOTES and NS.
  • This advanced device has the potential to improve surgical outcomes and expand the applicability of minimally invasive endoscopic techniques.
  • Further research and clinical validation are warranted to fully establish the benefits of this innovative surgical tool.