Micropipette device

A micropipette device for delivering sub-microliter volumes of fluid into a receptacle, the device comprising;

• a mounting bracket;
• a hollow dispensing tip having a first end and a second end;
• a tip holder holding the dispensing tip at the first end and secured to the mounting bracket in such a way that the tip holder is capable of reciprocal vertical motion;
• a linear motive force generator connected to the mounting bracket and connected to the tip holder to reciprocate the tip holder vertically above the receptacle;
• a fluid tubing adapted for connecting a fluid pump means to the dispensing tip, wherein the fluid pump means forces a sub-microliter droplet of fluid through the tubing and out of the dispensing tip so that the droplet is hold on the second end of the dispensing tip by surface tension;
• and
• a stop plate located below and in the downward path of travel of the tip holder and fixed in place on the mounting bracket so that vertical downward motion of the tip holder as caused by the linear motive force generator is stopped by the stop plate so as to dislodge the droplet of fluid located on the second end of the dispensing tip so that the droplet falls away from the dispensing tip and drops into the receptacle without the dispensing tip making physical contact with the receptacle.