Laser device for performing canal surgery in narrow channels
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United States of America Patent
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Oct 19, 1999
Grant Date -
N/A
app pub date -
Oct 3, 1991
filing date -
Oct 3, 1991
priority date (Note) -
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Abstract
A laser apparatus for removing hard and soft tissue from a narrow channel has at its cutting end a configuration that causes the laser light to emerge in an annular region and not apically.
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