Balanced Indwelling Needle Assembly and Paste-Type Medicine Infusion System

A paste-type medicine infusion system, comprising a balanced indwelling needle assembly and a main engine unit, wherein the balanced indwelling needle assembly comprises a baseplate and a vertical indwelling needle provided in a central preset area of the baseplate;

• a side of the baseplate is an applying surface and an opposite side of the baseplate is a mounting surface;
• the vertical indwelling needle is formed with an indwelling needle catheter extending vertically away from the applying surface;
• the applying surface is formed with an adhesive layer for being fixed onto a surface of a patient's skin;
• the vertical indwelling needle is formed with a fluid inlet connector on the mounting surface, the fluid inlet connector being communicated with a top inlet of an indwelling needle tube;
• the mounting surface is formed with a mounting part;
• the mounting part is used to detachably fix a main engine unit of a medicine infusion system on the mounting surface;
• and when the main engine unit is mounted and fixed on the mounting surface, the fluid inlet connector is in sealed communication with a medicine delivery connector of a medicine delivery device of the main engine unit.