Original articleExperimental endoscopyEvaluation of a new multitasking platform for endoscopic full-thickness resection
Section snippets
Specification of the EndoSAMURAI
The EndoSAMURAI prototype can provide great advantages by enabling traction and counter-traction through its independently movable arms and drive handles that transmit the movement of the operator's hands to the arms (Fig. 1). The EndoSAMURAI has 3 parts, which are the main body, the insertion tube, and the tip portion.
An insertion tube is 15 mm in diameter. Two articulating arms are equipped in the tip portion, which is designed so that each arm can insert various forceps from the main body
Results
The mean diameter of the resected specimen was 24.2 mm for group A and 21.5 mm for group B (P = .09). Only this item was not significantly different between the groups.
All other assessment items were significantly superior in group B compared with those in group A (P < .05) (Table 1). The mean procedure time was 23 minutes 28 seconds for group A and 13 minutes 25 seconds for group B (P = .002). Variability of the resected specimen was 15.3 mm for group A and 7.8 mm for group B (P = .028) (Fig. 8
Discussion
We reported the first comparative study of EndoSAMURAI for EFTR by using an ex vivo porcine model. This bench-top evaluation showed that EndoSAMURAI has great potential to allow more accurate and more effective performance of EFTR compared with that of a conventional, double-channel endoscope. In a double-channel endoscope, 2 forceps cannot be manipulated simultaneously in good cooperation. In contrast, EndoSAMURAI has a much more ergonomic design, and 2 arms can be manipulated simultaneously
Conclusions
A new multitasking platform, the EndoSAMURAI, allowed performance of EFTR procedures precisely and effectively compared with a conventional endoscope in a porcine model. Its more panoramic view and effective counter-traction could contribute to these successful results. The multitasking platform, which is the new technology developed for NOTES procedures, would be useful for advanced endoluminal surgery such as ESD and EFTR as well as NOTES.
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DISCLOSURE: K. Ikeda is a consultant for Olympus Medical Systems Corp. No other financial relationships relevant to this publication were disclosed.
If you would like to chat with an author of this article, you may contact Dr Ikeda at [email protected].