Bone implant drill
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United States of America Patent
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Aug 15, 2017
Grant Date -
Mar 24, 2016
app pub date -
Jan 27, 2015
filing date -
Sep 18, 2014
priority date (Note) -
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Abstract
A bone implant drill includes a bearing received in a sleeve. A transmission shaft includes a rod extending through the bearing and a transmission member formed on an end of the rod and received in the sleeve. The other end of the rod extends beyond the sleeve. A cutting rod includes a cutter, a coupling member received in the sleeve, and a positioning member between the cutter and the coupling member. The cutter and the coupling member are provided on two ends of the cutting rod respectively. The coupling member includes second teeth releasably engageable with first teeth on a free end of the transmission member. An elastic element is mounted in the sleeve. The elastic element includes a first end mounted around the coupling member and abutting the positioning member. The elastic element further includes a second end mounted around the transmission member and abutting the bearing.
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