Port-a-cath or a peripherally inserted central catheter (PICC)  Medications can be given into the vein through a port-a-cath or a peripherally inserted central catheter (PICC).  These have a portable pump that delivers the medication.  Some people get the medication continuously.  Others can push a button to release an extra dose of medication for added relief (called patient-controlled analgesia).  Still others have both continuous medication and the option to give themselves extra doses. 

Source:  Susan G. Komen  2019