Method of operating a liquefracture handpiece
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United States of America Patent
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Jul 8, 2003
Issued Date -
N/A
app pub date -
Jun 27, 2000
filing date -
Jun 4, 1998
priority date (Note) -
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status (Latency Note)
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Abstract
A surgical handpiece having two coaxial tubes or channels mounted within a body. The first tube is used for aspiration and is smaller in diameter than the second tube so as to great an annular passage between the first and second tube. The annular passage communicates with a pumping chamber formed between two electrodes. The pumping chamber works by boiling a small volume of the surgical fluid. As the fluid boils, it expands rapidly, thereby propelling the liquid downstream of the pumping chamber out of the annular passage. The electrodes are insulated from each other.
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