Apparatus and method for detecting the bending of medical invasive tools in medical interventions
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United States of America Patent
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Sep 30, 2003
Grant Date -
N/A
app pub date -
Jan 7, 2002
filing date -
Apr 15, 1999
priority date (Note) -
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Abstract
An apparatus for detecting the bending of a medical invasive tool (2) during its insertion in a body (4, 6) comprises an ultrasound transducer (8), and a position measuring system (29, 22, 26, 28) including position measuring components, and/or articulated arms (20, 22) being attached to the medical invasive tool (2). The expected position of the medical invasive tool is calculated according to the measurements produced by the position measuring system. Echo points, and/or segments of the medical invasive tool are identified on the ultrasound image (24). The comparison between the identified echo, and the calculated position of the invasive tool (without bending) is the base of detecting the bending of the medical invasive tool. Additionally, the identified echo points/segments are used in order to evaluate the actual shape of the invasive tool. Additionally, the expected position, and/or velocity of the invasive tool calculated, and a representation thereof is displayed on the image of the invasive tool calculated, and a representation thereof is displayed on the image viewable to the user. Similar apparatus can be utilized when employing a CT scanner or MI scanner.
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