Sampler for biological vascular tissue

The utility model relates to the technical field of medical instruments, and discloses a biological vascular tissue sampler which comprises a needle cylinder, a piston, a pull rod and a puncture needle, the top surface of the pull rod is fixedly connected with a connecting rod, the bottom of the needle cylinder is sleeved with a lantern ring in a sliding mode, the tail end of the connecting rod is fixedly connected with the top surface of the lantern ring, and the piston is arranged on the piston. A driving device is arranged on the face, away from the connecting rod, of the needle cylinder, and the free end of the driving device is fixedly connected with the side face of the lantern ring. The pull rod in the needle cylinder is connected with the connecting rod, the lantern ring and the driving device which are arranged on the outer side of the needle cylinder, the lantern ring and the connecting rod are driven by the driving device to move on the outer side of the needle cylinder, pulling of the pull rod is