Magnetoelectric surgical tools for minimally invasive surgery
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United States of America Patent
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Dec 10, 2013
Grant Date -
Mar 31, 2011
app pub date -
Sep 24, 2010
filing date -
Sep 25, 2009
priority date (Note) -
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Abstract
A magnetoelectric element of a surgical tool positioned in the body of a subject is controllably bent or elongated under the influence of an applied magnetic field. A piezoelectric layer in the magnetoelectric element provides output that can be used to determine the actual amount of bending or elongation of the magnetoelectric element, and this actual amount is compared to a theoretical amount of bending or elongation which would result from the applied magnetic field. Any differences between the actual and theoretical amounts provide feedback to the surgeon for performing the surgical procedure. Preferably, tactile feedback is provided to the surgeon.
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