Infusion means driven based on the outlet pressure of the pump source microfluidic

The present invention provides an infusion device, to a source of air pressure driving the pump drive outlet microfluidic constant voltage, comprising a joint assembly (1) and the plug assembly (11); said joint assembly (1) by a closure member (4) and in the locking said closure member (4) composed of the lower end of the member; said plug assembly (11) that has the reservoir tube is inserted into the connector assembly (1); said closure member (4) is attached to the top of the tube is connected to the reservoir a liquid tubules (3); (4) to the top side of the closure member is provided for driving the reservoir through the catheter fluid reservoir tubules (3) an infusion of the intake port (5); said locking member the plug locking assembly (11) when said plug assembly (11) is inserted into said connector assembly (1). The present invention is simple, fast, safe, pneumatic push agent from the melt extruded up tubules, facilitate increasing the plurality of drive head, multi-control agent.