Suitable for blood pressure monitoring and serial determination of arterial blood gases. A sharp atraumatic needle incision allows for minimal discomfort for the patient during the procedure.The specially designed VCL-VICKL switch prevents blood flow back and blood from reaching the medical worker's hands, and also ensures safety against air embolism and contamination. The protective covering of the needle automatically closes the sharp bevel of the needle after it is removed from the bushing, minimizing the risk of injury from the needle injection. Available with PUR catheter.