Patent ID: 9730772
Date: 2017-08-15
CPC Classifications: A61B,A61C

Claim:
1. A bone implant drill comprising: a sleeve; a bearing received in the sleeve; a transmission shaft including a rod and a transmission member, with the rod extending through the bearing, with the transmission member formed on an end of the rod and received in the sleeve, with the transmission member including a free end with a plurality of first teeth, and with another end of the rod extending beyond the sleeve; a cutting rod including a cutter, a positioning member, and a coupling member, with the cutter and the coupling member provided on two ends of the cutting rod respectively, with the positioning member located between the cutter and the coupling member, with the coupling member received in the sleeve, and with the coupling member including a plurality of second teeth releasably engageable with the plurality of first teeth; and an elastic element mounted in the sleeve, with the elastic element including a first end mounted around the coupling member and abutting the positioning member, and with the elastic element further including a second end mounted around the transmission member and abutting the bearing.