Cannula cooling and positioning device
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United States of America Patent
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N/A
Issued Date -
Dec 7, 2006
app pub date -
Sep 28, 2005
filing date -
Apr 29, 2004
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A cooling device comprises a thermally conductive material preferably having a large surface area, such as a plurality of fins. The cooling device clamps or slides onto an energy-introducing cannula and can exchange heat with the surrounding air, or with a coolant enclosed in a camber or shroud around the cooling device. The coolant can be circulated via a pump connected to the shroud. The device and/or shroud can be stabilized and positioned by a positioning cone or spacer. The cooling device and method reduces, minimizes or eliminates thermal effects at critical points along the cannula, while enabling the distal end of the cannula, at which treatment is occurring, to reach a temperature sufficient to kill tumor cells.
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