An automatic
constant pressure and constant flow
liquid injection device, comprising a
voltage stabilizing power supply, an electric gas injection mechanism, a gas tank, a liquid
medicine tank, an outer shell, an
electromagnetic valve, a flow meter, a manual valve, a power switch, further comprising a speed regulating circuit, a
control circuit, a prompt circuit, the electric gas injection mechanism, the gas tank, the liquid
medicine tank, the
electromagnetic valve, the flow meter and the manual valve are installed in the outer shell, the
voltage stabilizing power supply, the power switch, the speed regulating circuit, the
control circuit and the prompt circuit are installed in a component box and electrically connected with the electric gas injection mechanism, the
electromagnetic valve and the flow meter. The present application does not need human to inject liquid, ensures that the liquid
medicine entering the
human body tissue is in
constant pressure and flow rate.
Medical staff can also select and set different
liquid injection pressure according to the different tolerance of different patients, which brings convenience to
medical staff, improves work efficiency and ensures good
liquid injection effect. Therefore, the present application has good application prospect.