Patent ID: 9526440
Filing Date: 2016-12-27
CPC Classification: A61B

Claim Text:
1. A system for placing a catheter in a patient's vasculature, comprising: a console including a display; an ultrasound probe for ultrasonically imaging a portion of the patient's vasculature for depiction as an ultrasound image on the display, the ultrasound probe configured to communicate imaging information to the console; a stylet removably positionable in a lumen of the catheter, the stylet including a radiating element capable of producing an electromagnetic field; a stylet control module connected to the stylet, the stylet control module configured to control operation of the radiating element, wherein the stylet control module includes a timer circuit configured to send electrical pulses at a pulse signal frequency to the radiating element; and an external sensor configured to detect the electromagnetic field of the radiating element, the electromagnetic field providing electromagnetic field information for determining a position of the catheter with respect to the external sensor during advancement of the catheter in the patient's vasculature, the external sensor configured to communicate the electromagnetic field information to the console for depiction on the display with the ultrasound image, wherein at least one of the console and the external sensor includes a circuit configured to synchronize the at least one of the console and the external sensor with the pulse signal frequency.