FIELD: medical engineering. SUBSTANCE: device is intended for accurate injection of medical agents into ambulatory patients at preset speed and within prolonged period of time. Device has compact, low-profiled laminated construction. Device includes either flexible blown-up membrane 50 or thin separating member 16 which limits liquid chamber P having liquid outlet 28 in combination with thin flat base 12. Device comprises internal source of reserve power 18 designed for controllable ejection of medical agents from device. Reserve power source 18 may include either blown-up elastomeric membrane 50 or cellular mass expanding like sponge. EFFECT: higher reliability. 33 cl, 38 dwg
