The invention relates to medical equipment, namely, to devices for subcutaneous, intramuscular, intravenous and intraosseous injections of liquid medications placed in carpules used for single-use injections, in particular, for implementation of local anesthesia in dentistry. A disposable carpule injector comprises a cylindrical barrel, which has at one end a handle-finger rest with a hole at the face end for installation, with a possibility of displacement therein, of a rod-rest with a bar-shaped tip, and at the opposite end, a bush for a double-edged needle, a carpule installed in a barrel with a possibility of contact of the carpule plunger and the tip of the rod-rest, and a fastening element with a double-edged injection needle, where bush for the double-edged needle is made with a possibility of threaded fixation of the fastening element with the double-edged injection needle thereon and installation of a protective needle cap, the handle-rest is made with a possibility of being fixed on the barrel by means of projections fixing the barrel and corresponding grooves on the handle-rest, and is provided with a clamp for the carpule, the carpule end opposite to the plunger has a metal cap, the barrel has a pull-out protective cap following the shape of the barrel, installed with a possibility of being moved along the same, extended to the full length of the injection needle and fixed on the barrel by means of fixation elements forming a fixation unit.
