The Site~Rite 6 is an ultrasound system designed specifically for guiding needles and catheters into vascular structures, often used for procedures like vascular access or for intraoperative guidance. It is a part of a line of ultrasound systems from manufacturers like BD (formerly Bard) and uses an ultrasound transducer to create images of the body's internal structures, which allows medical professionals to visualize blood vessels and guide medical devices accurately. The system functions similarly to other ultrasound machines by sending sound waves into the body and interpreting the echoes to form an image, but it is optimized for needle and catheter guidance.