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The First Microsurgery-assisting Robot Equipped With an Automatic Instrument Exchange System and a Miniature Tool

Makoto Mihara1, Hisako Hara1,2, Kazuhito Wakana3

  • 1From the Mukumi Clinic, Lymphedema clinic Tokyo, Tokyo, Japan.

Plastic and Reconstructive Surgery. Global Open
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Summary
This summary is machine-generated.

A new microsurgery robot with automated instrument exchange enhances surgeon autonomy and efficiency. This system achieved 100% vascular patency in rat models, improving complex procedure accuracy.

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Area of Science:

  • Biomedical Engineering
  • Surgical Robotics
  • Microsurgery

Background:

  • Microsurgery demands high precision, stability, and teamwork.
  • Current robotic systems face challenges like slow instrument exchange and reliance on assistants, increasing operative time and costs.

Purpose of the Study:

  • To develop a microsurgery-assisting robot with automated instrument exchange to improve surgical efficiency and surgeon autonomy.
  • To evaluate the system's performance in complex microsurgical tasks.

Main Methods:

  • Development of a microsurgery robot with an automated instrument exchange system and a micro tool kit.
  • Testing the robot using chicken-wing arteries and rat vessels (0.35-0.8 mm diameter).
  • Evaluation of anastomosis time, instrument exchange frequency, and vascular patency rates.

Main Results:

  • Automated instrument exchanges were completed accurately in approximately 9 seconds.
  • The system significantly reduced reliance on surgical assistants.
  • A 100% vascular patency rate was achieved in the rat model.
  • Anastomosis times were slightly longer than manual operations by skilled surgeons.

Conclusions:

  • The developed robot effectively facilitates a broader range of microsurgical tasks beyond anastomosis, including dissection and trimming.
  • The automated instrument exchange system enhances workflow and surgeon autonomy.
  • The system is anticipated to improve accuracy in microsurgical procedures involving extremely fine vessels.