Flexible coating for magnetic resonance imaging compatible invasive devices
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United States of America Patent
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Mar 1, 1994
Grant Date -
N/A
app pub date -
Aug 14, 1992
filing date -
Aug 14, 1992
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Invasive devices, such as laser fiber guides and biopsy needles, constructed of a material which exhibits little or no magnetic susceptibility, have a flexible polymer coating for retaining pieces of the device in the event of a fracture of the invasive device. The polymer coating also allows removal of the pieces of a fractured invasive device from the body of a subject without requiring surgery. The surgical instruments can be used inside a magnetic field during magnetic resonance (MR) imaging, thereby allowing interactive internal images to be produced and displayed to a surgeon during surgery. Since the invasive devices exhibit low susceptibility, they do not distort a created MR image.
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