Minimum catheter length tool

An ultrasound imaging system includes an ultrasound probe designed to produce an ultrasound image including one or more blood vessels below a skin surface of a patient, and a console with a display. The console is operably coupled to the ultrasound probe. The console includes a memory including instructions capable of causing a processor to determine a depth of the user selected blood vessel and a selection of medical devices based on a user selection including one or both of a minimum dwell length and an angle of insertion. The processor can be configured to determine these parameters prior to insertion of a user selected medical device into a user selected blood vessel from the one or more blood vessels below the skin surface of the patient. The display depicts the ultrasound image, the user selected blood vessel, and the user selected medical device.