A new robotic-assisted flexible endoscope with single-hand control

endoscopic submucosal dissection in the ex vivo porcine stomach

tsutomu iwasa, Ryu Nakadate, Shinya Onogi, Yasuharu Okamoto, Jumpei Arata, Susumu Oguri, Haruei Ogino, Eikichi Ihara, Kenoki Ouchida, Tomohiko Akahoshi, Tetsuo Ikeda, Yoshihiro Ogawa, Makoto Hashizume

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Background: Difficulties in endoscopic operations and therapeutic procedures seem to occur due to the complexity of operating the endoscope dial as well as difficulty in performing synchronized movements with both hands. We developed a prototype robotic-assisted flexible endoscope that can be controlled with a single hand in order to simplify the operation of the endoscope. The aim of this study was to confirm the operability of the robotic-assisted flexible endoscope (RAFE) by performing endoscopic submucosal dissection (ESD). Methods: Study 1: ESD was performed manually or with RAFE by an expert endoscopist in ex vivo porcine stomachs; six operations manually and six were performed with RAFE. The procedure time per unit circumferential length/area was calculated, and the results were statistically analyzed. Study 2: We evaluated how smoothly a non-endoscopist can move a RAFE compared to a manual endoscope by assessing the designated movement of the endoscope. Results: Study 1: En bloc resection was achieved by ESD using the RAFE. The procedure time was gradually shortened with increasing experience, and the procedure time of ESD performed with the RAFE was not significantly different from that of ESD performed with a manual endoscope. Study 2: The time for the designated movement of the endoscope was significantly shorter with a RAFE than that with a manual endoscope as for a non-endoscopist. Conclusions: The RAFE that we developed enabled an expert endoscopist to perform the ESD procedure without any problems and allowed a non-endoscopist to control the endoscope more easily and quickly than a manual endoscope. The RAFE is expected to undergo further development.

Original languageEnglish
Pages (from-to)3386-3392
Number of pages7
JournalSurgical endoscopy
Volume32
Issue number7
DOIs
Publication statusPublished - Jul 1 2018

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Endoscopes
Robotics
Stomach
Swine
Hand
Endoscopic Mucosal Resection

All Science Journal Classification (ASJC) codes

  • Surgery

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A new robotic-assisted flexible endoscope with single-hand control : endoscopic submucosal dissection in the ex vivo porcine stomach. / iwasa, tsutomu; Nakadate, Ryu; Onogi, Shinya; Okamoto, Yasuharu; Arata, Jumpei; Oguri, Susumu; Ogino, Haruei; Ihara, Eikichi; Ouchida, Kenoki; Akahoshi, Tomohiko; Ikeda, Tetsuo; Ogawa, Yoshihiro; Hashizume, Makoto.

In: Surgical endoscopy, Vol. 32, No. 7, 01.07.2018, p. 3386-3392.

Research output: Contribution to journalArticle

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AU - Okamoto, Yasuharu

AU - Arata, Jumpei

AU - Oguri, Susumu

AU - Ogino, Haruei

AU - Ihara, Eikichi

AU - Ouchida, Kenoki

AU - Akahoshi, Tomohiko

AU - Ikeda, Tetsuo

AU - Ogawa, Yoshihiro

AU - Hashizume, Makoto

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