A subclavian catheter is a medical device inserted into a vein located beneath the collarbone. It is used to provide long-term access to the bloodstream for administering medications, fluids, or nutrients, and for drawing blood samples. This type of catheter is often preferred for its ease of use and lower risk of infection compared to other access methods. The procedure to place a subclavian catheter typically involves local anesthesia and ultrasound guidance to ensure accurate placement. Once inserted, the catheter can remain in place for weeks or months, making it suitable for patients requiring ongoing treatment, such as those undergoing chemotherapy or long-term intravenous therapy.