Endovascular navigation system and method
First Claim
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1. 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.
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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.
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Citations
10 Claims
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1. A method of determining a position of a medical device in vasculature of a patient, the method comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification