Endovascular navigation system and method
AssigneeArrow International, Inc.
InventorsWenkang Qi, Bradley Hill
Life of this patent
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Abstract
A method of navigating and positioning an endovascular device in a vasculature is disclosed. Initially, a system including an endovascular device and at least one transducer is inserted into the lumen of a patient. An acoustic signal is then transmitted within the lumen. A reflected signal is pre-processed to extract one or more acoustic features. The one or more acoustic features are processed using a computer readable set of rules to produce an output related to guidance of the instrument within a blood vessel or a position of the instrument within the blood vessel.
Claims10
A method of determining a position of a medical device in vasculature of a patient, the method comprising:
- transmitting an ultrasound signal in the vasculature from a distal end of the medical device;
- receiving a reflected ultrasound signal;
- extracting an ultrasound feature from the reflected ultrasound signal;
- receiving an electrical signal from a lead on the medical device;
- extracting an ECG feature from the received electrical signal;
- calculating a first indicator score by inputting the ultrasound feature and the ECG feature into a first indicator equation;
- calculating a second indicator score by inputting the ultrasound feature and the ECG feature into a second indicator equation;
- identifying a positional state of the medical device by comparing the first and second indicator scores;
- and
- displaying an indicator on an output device indicating the positional state.
Dependencies are inferred from the claim text.