1. Take the objects to the patient's bed and explain the bed number and name to the patient.

2. Hang the infusion bottle on the infusion rack, open the outer package of the catheter needle, and wear gloves.

3. Select the vessel. Tie a pulse pressing belt 10cm above the puncture point, and conduct local skin disinfection according to routine procedures, and wait for drying.

4. Take out the static catheter of the retaining needle, remove the needle sleeve, and turn the needle core to make the needle head slope upward. Needle the scalp of the prepared intravenous infusion device into the heparin cap, pay attention to exhaust the air, and turn off the switch of the infusion device.

5. The needle is punctured at an angle of 15~30 ° with the skin. When blood returns, reduce the angle and push the needle 0.2~0.5cm Puncture. Ask the patient to clench his fist, tighten the skin with his left hand, and clamp the protective wing of the catheter needle with his right hand with his thumb and index finger. Fix the catheter needle with the right hand, pull out the needle heart 0.5~1cm with the left hand, put all the outer tubes into the vein with the left hand, loosen the pulse band, and ask the patient to loosen his fist.

6. Draw out the needle heart, fix the catheter needle with a special application, write the patient's name, the date and time of retaining the needle on the application, then fix the heparin cap, and take out the pulse compression band.

Extended data:

The components of the static core of the indwelling needle include a flexible catheter/cannula that can be placed in the blood vessel, and a stainless steel puncture guide needle core. When in use, the catheter and the needle core are punctured into the blood vessel together. When all the catheter enters the blood vessel, the needle core is withdrawn, and only the soft catheter is retained in the blood vessel for infusion treatment.

The retaining needle is divided into open type and closed type, the open type is divided into ordinary type and safe type (needle stab prevention type), and the closed type is divided into ordinary type and safe type (needle stab prevention type).