The invention discloses a front end
assembly, an
endoscope and an
endoscope assembly, and belongs to the technical field of endoscopes. Comprising a front end seat and a telescopic
pipe; the front end seat is provided with an instrument channel and a
camera module mounting part, and the instrument channel is used for adsorbing broken stones; the telescopic
pipe is movably installed on the front end base, the telescopic
pipe is arranged around the instrument channel, the telescopic pipe can move relative to the front end base in the axial direction of the instrument channel so that at least part of the telescopic pipe can stretch out to the far end of the front end base, the telescopic pipe is provided with a perspective area, and the perspective area is located on the side, close to the
camera module installation part, of the telescopic pipe. According to the device, the telescopic pipe is arranged, the range of the instrument channel is expanded through movement of the telescopic pipe, stone is treated in the telescopic pipe, the telescopic pipe can prevent
diffusion of broken stone formed after the stone is crushed, the instrument channel communicated with the telescopic pipe is used for adsorbing the broken stone, and the broken stone in the telescopic pipe can flow out along the fluid negative pressure flow channel; broken stones are prevented from remaining in the body, and the stone removing efficiency and the stone removing effect are improved.