Deconcentrator of tumor electric field treatment system and tumor electric field treatment system

The utility model provides a deconcentrator of a tumor electric field treatment system and the tumor electric field treatment system, and relates to the technical field of medical instruments, the deconcentrator comprises a deconcentrator main body and a plug assembly; the deconcentrator main body comprises an upper cover body, a lower cover body, a circuit assembly and a socket assembly, the socket assembly is electrically connected with the circuit assembly, the socket assembly is detachably and electrically connected with the plug assembly, and the circuit assembly is used for shunting and gathering electric signals; the plug assembly is provided with a locking part, the socket assembly is provided with a locking hole, and the locking part and the locking hole are clamped and matched with each other; the plug assembly is provided with a sealing part at the locking part, and the sealing part is used for filling a gap between the plug assembly and the socket assembly. According to the deconcentrator provided