Portable insulin injection device

Abstract

The invention relates to a portable insulin injection device which is characterized in that a disposable liquid medicine box is movably installed at the bottom of an injection rod, a sealing liquid pushing block is installed in the disposable liquid medicine box, a liquid medicine cavity in the lower portion of the sealing liquid pushing block is filled with liquid medicine, and a pushing rod with the bottom connected with the top face of the sealing liquid pushing block is arranged in a pushing cavity in the upper portion of the sealing liquid pushing block; the sliding block is connected with the push block through a connecting rod, the bottom of the push block is matched with the top of the push rod, a plurality of microneedles which are of an array structure and communicate with the liquid medicine cavity are arranged at the bottom of the disposable liquid medicine box, and a soluble needle head is arranged at the end of each microneedle; the disposable liquid medicine boxes of different structures are installed to convey liquid medicine, meanwhile, a plurality of microneedles of an array structure are adopted as puncture bodies, the whole pain is small, infection and subcutaneous hyperplasia are not prone to occurring, and local discomfort or extravasated blood cannot be caused.

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