(Summary description)Steps for usage:
1. Remove the arterial blood collection needle from the sterile packaging.
2. Remove the arterial blood collection needle cap and place it in a proper position.
3. Push the needle cap outward.

Steps for usage:

1. Remove the arterial blood collection needle from the sterile packaging.

2. Remove the arterial blood collection needle cap and place it in a proper position.

3. Push the needle cap outward.

4. Push the mandrel forward to the zero mark line and pull back the preset to the desired scale.

5. The arterial blood collection needle is down, and the puncture is performed at an angle of 45° to 90 °

6. Fill the sample with a preset scale under arterial pressure.

7. After the sample is collected, immediately pull out the needle of the arterial blood collection needle and press the puncture point with gauze for at least 5 minutes to prevent bleeding.