ELECTROPHYSIOLOGICAL CATHETER

Provided is an electrophysiological catheter. The electrophysiological catheter comprises an inner tube (2) and an outer tube (1) which are sleeved. The inner tube (2) and the outer tube (1) can move relative to each other; an electrode assembly (3) connects the inner tube (2) to the outer tube (1), and the electrode assembly (3) comprises: a plurality of base body groups (31), wherein the plurality of base body groups (31) are arranged in the circumferential direction of the inner tube (2), and the base body group (31) connects the inner tube (2) to the outer tube (1), and comprises more than two base bodies sequentially arranged in the circumferential direction of the inner tube (2), wherein the base body can deform, and at least comprises a first segment (311) and a second segment (312) which are connected, wherein a first connection point is provided between the first segment (311) and the second segment (312), and the first connection points in the same base body group (31) are in contact connection to f