A PICC line (peripherally inserted central catheter line) is used to give someone chemotherapy treatment or other medicines.
A PICC line is a long, thin, hollow, flexible tube called a catheter. It is put into one of the large veins of the arm, above the bend of the elbow. Then it is threaded into the vein until the tip is in a large vein just above the heart.
The line is usually sealed with a special cap or bung. This can be attached to a drip or syringe containing your chemotherapy or medication. There may be a clamp to keep the line closed when it is not being used.
Sometimes it divides into 2 or 3 lines. This allows you to have different treatments at the same time.