Method of and apparatus for determining very accurately the position of a device inside biological tissue
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United States of America Patent
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Feb 14, 1984
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N/A
app pub date -
May 7, 1981
filing date -
May 7, 1981
priority date (Note) -
Expired
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Abstract
A method of and apparatus for determining very accurately the position of a device inside biological tissue comprising a detecting instrument with a probe, which probe generates a small magnetic field which can be disturbed by a magnetically permeable metal in the device inside the tissue when a narrow end of the probe is positioned immediately adjacent to tissue containing the metal, whereby after the metal-carrying device is inserted in the tissue, the end of the probe is used to precisely locate the device by scanning the tissue until the magnetic field is disturbed which causes the instrument to emit a signal.
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