Intraosseous device including a sensing obturator

An obturator assembly configured for use with an intraosseous access system, comprising:

• an elongate obturator body;
• and
• an electrical impedance sensor disposed proximate a distal end of the obturator body, the electrical impedance sensor configured to detect a change in modality to determine access to a medullary cavity, the electrical impedance sensor communicatively coupled with a control logic disposed in a driver of the intraosseous access system, the control logic configured to modify operation of the driver when the electrical impedance sensor detects the change in modality, the electrical impedance sensor further including an RFID chip, wherein the change in modality detected by the electrical impedance sensor transitions the RFID chip from an inactive state to an active state and, wherein the control logic is configured to provide an interrogation signal configured to induce a response signal from the RFID chip in the active state to determine access to the medullary cavity.