Novel endocrine effusion collecting device

The utility model discloses a novel endocrine effusion collecting device. Sampling tube, a straw is arranged in the center of the lower end of the sampling tube; a piston rod is arranged inside the upper end of the sampling pipe; the lower end of the piston rod is fixedly connected with a sealing plate inside the sampling pipe; an elastic sealing ring located outside the piston rod is arranged atthe upper end of the sealing plate; the lower end of the elastic sealing ring is hermetically connected to the sealing plate; the upper end of the elastic sealing ring is hermetically connected insidethe upper end of the sampling tube; the sampling pipe, the elastic sealing ring and the sealing plate form an accommodating cavity; sealing covers are fixedly connected to the upper ends of the piston rods; the lower end of the sealing cover is fixedly connected to the sampling pipe; the outer side of the sampling pipe is slidably connected with a sleeve; a plurality of uniformly distributed sliding grooves are formed in