Patent ID: 7919061

Claim:
A micropipette, comprising: a pipe body, having a rotating hole, an engaging hole, a receiving hole and a discharging hole, wherein the rotating hole and the engaging hole are formed in a peripheral surface Of the pipe body in radial direction of the pipe body, the rotating hole and the engaging hole are connected with each other in the pipe body, the receiving hole is formed in the pipe body and connected with the rotating hole, and the discharging hole is connected with the rotating hole and axially formed in one end of the pipe body; a rotating shaft, pivotingly disposed in the rotating hole and having a connecting hole and a switching hole, wherein the connecting hole extends through the rotating shaft in radial direction of the rotating shaft and has a first connecting opening and a second connecting opening which are respectively formed at two ends of the connecting hole and connected to the receiving hole and the discharging hole and the switching hole has a third connecting opening formed on a circumferential surface of the rotating shaft and the switching hole is formed in the radial direction of the rotating shaft and connected with the connecting hole; and a swing member, fixed on two ends of the rotating shaft.