Active marker device for use in electromagnetic tracking system
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United States of America Patent
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Dec 29, 2015
Grant Date -
Jul 7, 2011
app pub date -
Jan 5, 2011
filing date -
Jan 6, 2010
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A device for use in an image-guided procedure on a patient is disclosed. The device includes an EM sensor assembly, a frame assembly (e.g., a base portion from which a plurality of legs project upward to a common point) and a plurality of attachment members. Each attachment member is arranged to be releasably (e.g., adhesively) secured to the skin of a patient and to be coupled to the frame assembly to secure the frame assembly on the skin of the patient. The EM sensor assembly is arranged to be releasably secured to the frame assembly (e.g., pivotably snap-fit into a socket in the frame assembly). The device additionally includes plural visualizable elements (e.g., metal balls) that are adapted to be readily imaged to establish imaging reference points and a plurality of asymmetrically disposed apertures to enable tattooing indicia on the skin of the patient through the apertures.
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