Home and specialized infusion encompasses a broad range of pharmacological treatments delivered in an outpatient environment, often in the patient’s home or in an infusion suite. The bulk of these drugs are supplied through needle or catheter, a process known as infusion, but some are provided via intramuscular, epidural, or self-injectable ways.

In the early 1990s, needleless connectors for N catheters, administration sets, and syringes were developed to reduce the incidence of needlestick accidents among health care personnel.