Usage Instructions

Important Notes (Placed First)

1. The pen will not work when pressed if no cartridge is installed.

2. Scale values (20/60/100/180/220) represent remaining liquid units (U); maximum capacity: 220U (2.2mL).

3. Needles are disposable; never reuse them to avoid infection or blockage.

4. Keep the pen away from direct sunlight and high temperatures.

Operating Steps

1. Twist and separate the pen body, place the medicinal cartridge into the transparent barrel, then screw the pen firmly closed.

2. Mount a brand-new disposable needle onto the bottom threaded port.

3. Purge air: Turn the top dosage knob to select 2–4 units. Hold the pen vertically upward, press the injection button continuously until liquid drips evenly from the needle tip.

4. Rotate the top knob to set your required dosage, confirm the figure via the dosage window.

5. Wipe the injection site with an alcohol pad. Insert the needle under the skin, press the injection button all the way down, hold for 5–10 seconds before withdrawing the needle to prevent liquid backflow.

6. Remove and safely discard the used needle after each injection. Replace the empty cartridge for repeated use.

Mini Short Version (for sidebar tips)

• No cartridge = no pressing response

• Do not reuse needles

• Avoid high temperature & sunlight

• Max volume: 220 Units

1. Load cartridge and assemble pen

2. Fit new needle + exhaust air

3. Set dosage

4. Inject subcutaneously, hold 5-10s

5. Discard needle after use