Electrosurgical knife with the water-jet function of tip-type during endoscopic treatment injection.

Objectives: This study aimed to objectively evaluate the water-jet-functioned electrosurgical knife injection performances in a desktop experiment.

Methods: Five types of water-jet-functioned electrosurgical knives, including two injection styles of sheath-type (A: DualKnife J, KD-655L; B: FlushKnife, DK2620-J-B20S; C: Splash M-Knife, DN-D2718B; D: ISSEN, SN1650-20) and tip-type (E: ORISE ProKnife, M00519361) were evaluated. These knives were compared with an injection needle (Control: SuperGrip 25G) as a control.