CATHETER TYPE IONTOPHORESIS APPARATUS

摘要

Catheter type iontophoresis apparatus (10) comprising endoscope unit (20) and, disposed at a distal end of flexible cable (18) thereof, small working-side electrode structure (12) and non-working-side electrode structure (14). Pin-point infiltration of drug solution can be accomplished by closely adhering first ion exchange membrane (44) and fourth ion exchange membrane (54) provided at the distal end thereof to, for example, a cancer site of the digestive organ and carrying out iontophoresis. The working-side electrode structure (12) and non-working-side electrode structure (14) are mounted at a distal end of rodlike member (16), and the rodlike member (16) is freely attachable to or detachable from the distal end of the flexible cable (18), being replaceable integrally.