Sterilizable non-lubricated rotary instrument for dental and medical use
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United States of America Patent
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Oct 30, 1990
Grant Date -
N/A
app pub date -
May 8, 1989
filing date -
May 8, 1989
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A handpiece particularly suited for medical/dental applications in which a rotary tool is used upon and in proximity with anatomical structures. The handpiece has an anti-friction bearing assembly which mounts the rotary tool. At least the rolling elements of the bearing assembly are formed of ceramic material. The instrument may be sterilized repeatedly without requiring lubrication either in use or between sterilization cycles.
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