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Published in: International Journal of Computer Assisted Radiology and Surgery 2/2015

Open Access 01-02-2015 | Original Article

Mobile locally operated detachable end-effector manipulator for endoscopic surgery

Authors: Toshikazu Kawai, Myongyu Shin, Yuji Nishizawa, Yuki Horise, Atsushi Nishikawa, Tatsuo Nakamura

Published in: International Journal of Computer Assisted Radiology and Surgery | Issue 2/2015

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Abstract

Purpose

 Local surgery is safer than remote surgery because emergencies can be more easily addressed. Although many locally operated surgical robots and devices have been developed, none can safely grasp organs and provide traction. A new manipulator with a detachable commercial forceps was developed that can act as a third arm for a surgeon situated in a sterile area near the patient. This mechanism can be disassembled into compact parts that enable mobile use.

Methods

 A mobile locally operated detachable end-effector manipulator (LODEM) was developed and tested. This device uses crank-slider and cable-rod mechanisms to achieve 5 degrees of freedom and an acting force of more than 5 N. The total mass is less than 15 kg. The positional accuracy and speed of the prototype device were evaluated while performing simulated in vivo surgery.

Results

 The accuracy of the mobile LODEM was 0.4 mm, sufficient for handling organs. The manipulator could be assembled and disassembled in 8 min, making it highly mobile. The manipulator could successfully handle the target organs with the required level of dexterity during an in vivo laparoscopic surgical procedure.

Conclusions

 A mobile LODEM was designed that allows minimally invasive robotically assisted endoscopic surgery by a surgeon working near the patient. This device is highly promising for robotic surgery applications.
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Metadata
Title
Mobile locally operated detachable end-effector manipulator for endoscopic surgery
Authors
Toshikazu Kawai
Myongyu Shin
Yuji Nishizawa
Yuki Horise
Atsushi Nishikawa
Tatsuo Nakamura
Publication date
01-02-2015
Publisher
Springer Berlin Heidelberg
Published in
International Journal of Computer Assisted Radiology and Surgery / Issue 2/2015
Print ISSN: 1861-6410
Electronic ISSN: 1861-6429
DOI
https://doi.org/10.1007/s11548-014-1062-4

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