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Tools and Techniques

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Tools and techniques
Open Access
Colorectal endoscopic submucosal dissection with use of a bipolar and insulated tip knife
VideoGIE
Vol. 4Issue 7p314–318Published in issue: July, 2019
- Yutaka Saito
- Shih Yea Sylvia Wu
- Mai Ego
- Seiichiro Abe
Cited in Scopus: 6
- Video
The bipolar needle-knife (B-knife) was originally developed by Doi et al in collaboration with the Zeon Medical Company (Tokyo, Japan) in 2002. The main advantage of the B-knife is safety. The electric current is limited to the needle, and the highest density of current stays near the sheath pole. The risks of both perforation and coagulation effect to the muscle layer are, therefore, significantly reduced.^1,2 Several clinical studies have demonstrated the safety of the B-knife.^3,4