A new T-type electrosurgical knife with waterjet function used in probe mode: a safe technical variant for colorectal endoscopic submucosal dissection

The water-jet hydrodissection technique is an effective method for colorectal endoscopic submucosal dissection (ESD) [1], even during the technique learning curve [2]. The use of the T-type HybridKnife in "probe mode" can facilitate ESD [3], even in complex situations [4] [5]. The design of the new HybridKnife Flex ([Fig. 1]) may improve the precision and safety of the technique.