Catheter with strain gauge sensor
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United States of America Patent
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Oct 7, 2014
Grant Date -
Jan 23, 2014
app pub date -
Sep 9, 2013
filing date -
Dec 28, 2009
priority date (Note) -
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Abstract
A medical probe, including a flexible insertion tube, having a distal end for insertion into a body cavity of a patient and which is configured to be brought into contact with tissue in the body cavity. The probe further includes a sensor tube of an elastic material, contained inside the distal end of the insertion tube and configured to deform in response to forces exerted by the tissue on the distal end. The probe also includes a plurality of strain gauges fixedly attached to a surface of the sensor tube at different, respective locations and configured to generate respective signals in response to deformations of the sensor tube.
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