Right atrium indicator

摘要

A method for determining the location of a medical device within a body is provided. The method includes transmitting from the medical device an acoustic signal; receiving with the medical device a reflected acoustic signal; advancing the medical device based on a first algorithm, the first algorithm including a first weighting factor and a first feature extracted from the reflected acoustic signal; determining a first location of the medical device based on the first algorithm; and moving the medical device to a second location based on a second algorithm, the second algorithm based on the determined first location and including at least one of a second weighting factor and a second feature extracted from the reflected acoustic signal. Also disclosed are systems and devices for performing the methods described herein.

主权项

1. A method for determining that a distal region of a medical device has entered the right atrium of a patient, the method comprising:
transmitting, from a non-imaging ultrasound transducer of the medical device, an acoustic signal; receiving, using the non-imaging ultrasound transducer of the medical device, a reflected acoustic signal; detecting, using an electrocardiogram sensor of the medical device, an electrocardiogram signal; extracting one or more acoustic features from the reflected acoustic signal; extracting one or more electrocardiogram features from the electrocardiogram signal; determining that the distal region of the medical device has entered the right atrium of the patient based on the one or more acoustic features and the one or more electrocardiogram features; and visually indicating, in response to the determination that the distal region of the medical device has entered the right atrium of the patient, that the distal region of the medical device has entered the right atrium of the patient.