Fig. 1 a.

Illustration of the endoscopic vacuum electrode (EndoVe), an electrode developed to attach to a standard endoscope and vacuum system. b Illustration of the treatment head; a chamber approximately 2.5 cm ³ containing two plate electrodes ³⁴ . c Illustration of the EndoVe device in colon. The treatment head is placed on tumor tissue which is drawn by negative pressure into the electrode chamber allowing application of the electric field. Source: Cork Cancer Research Centre