Endoscopy 2014; 46(11): 977-980
DOI: 10.1055/s-0034-1377450
Innovations and brief communications
© Georg Thieme Verlag KG Stuttgart · New York

A new device for simultaneous manipulation of an endoscope and a treatment device during procedures: an ex vivo animal study

Daisuke Kikuchi
1  Department of Gastroenterology, Toranomon Hospital, Tokyo, Japan
,
Akihiro Yamada
1  Department of Gastroenterology, Toranomon Hospital, Tokyo, Japan
,
Toshiro Iizuka
1  Department of Gastroenterology, Toranomon Hospital, Tokyo, Japan
,
Kosuke Nomura
1  Department of Gastroenterology, Toranomon Hospital, Tokyo, Japan
,
Yasutaka Kuribayashi
1  Department of Gastroenterology, Toranomon Hospital, Tokyo, Japan
,
Ryusuke Kimura
1  Department of Gastroenterology, Toranomon Hospital, Tokyo, Japan
,
Satoshi Yamashita
1  Department of Gastroenterology, Toranomon Hospital, Tokyo, Japan
,
Tsukasa Furuhata
1  Department of Gastroenterology, Toranomon Hospital, Tokyo, Japan
,
Akira Matsui
1  Department of Gastroenterology, Toranomon Hospital, Tokyo, Japan
,
Toshifumi Mitani
1  Department of Gastroenterology, Toranomon Hospital, Tokyo, Japan
,
Osamu Ogawa
1  Department of Gastroenterology, Toranomon Hospital, Tokyo, Japan
,
Shu Hoteya
1  Department of Gastroenterology, Toranomon Hospital, Tokyo, Japan
,
Naohisa Yahagi
2  Cancer Center, Keio University, Tokyo, Japan
,
Mitsuru Kaise
1  Department of Gastroenterology, Toranomon Hospital, Tokyo, Japan
› Author Affiliations
Further Information

Publication History

submitted 09 September 2013

accepted after revision 12 June 2014

Publication Date:
01 August 2014 (eFirst)

Background and study aims: Endoscopists must maneuver both endoscope and treatment device during procedures, requiring them to release their hand from the scope to manipulate the treatment device. Aiming to improve this situation, we developed a new device called the Thumb Drive.

Patients and methods: The Thumb Drive comprises a controller and catheter. After attaching the controller to the endoscope’s grip, the catheter is inserted into the forceps channel. The treatment device is then inserted into the Thumb Drive and fixed with its tip protruding from the endoscope tip. A single endoscopist resected 10 lesions in a porcine stomach by endoscopic submucosal dissection (ESD) using the Thumb Drive.

Results: All lesions were resected en bloc using this new device without any perforations. The mean incision, dissection, and operative times were 97.2 ± 48.7 seconds, 121.6 ± 53.6 seconds, and 218.8 ± 67.8 seconds, respectively.

Conclusions: The Thumb Drive enables the endoscopist to manipulate the treatment device with the thumb while handling the endoscope with the right hand during ESD. Its utility should be examined in in vivo studies as a next step.