Patent ID: 8753292

Claim:
A method for locating a catheter tip within a human body comprising: inserting a catheter into a hollow anatomical structure of the human body, wherein the catheter comprises an elongated body having proximal end and a distal end terminating in a catheter tip at the distal end, a lumen having an opening disposed at the distal end, and an audio emitting element configured at a distal portion of the elongated body; advancing the catheter at least partially through the hollow anatomical structure; positioning a first audio sensor at a first site on or near the human body; emitting an audio beacon signal from the audio emitting element; detecting a first audio signal through the first audio sensor; transmitting the first audio signal to an audio signal processing unit; determining if the first audio signal corresponds to a target location of the catheter tip; and transmitting a notification signal to a user notification unit.