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US 12,714,440 B2Granted
Implant drill
AssigneeDentium Co., Ltd.
InventorsSeung-Woo Suh, Byunggyu Song, Sung Min Chung
Life of this patent
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Abstract
An implant drill according to the present invention includes: a drill body having a threaded cutting edge formed on an outer circumference thereof; and a reverse flute formed in a form of a groove on an outer circumference of the drill body so that cut bone chips are collected, and having a rotational direction and reverse directionality of the drill body so that the collected bone chips are pushed toward an end portion entering an inside of a drilling hole of the drill body by a rotation of the drill body.
Claims20
An implant drill, comprising:
- a drill body;
- and
- at least reverse one flute formed in a form of a groove on an outer circumference of the drill body so that cut bone chips are collected as the drill body rotates, and having a rotational direction and reverse directionality of the drill body so that the collected bone chips are pushed toward an end portion of the drill body entering an inside of a drilling hole of the drill body by a rotation of the drill body,
- wherein the at least one reverse flute increases in depth toward the end portion of the drill body such that a chip-receiving capacity of the at least one reverse flute increases toward the end portion to facilitate smoother inward conveyance of the bone chips into the drilling hole.
1 more element
An implant drill, comprising:
- a drill body having a threaded cutting edge formed on an outer circumference thereof;
- and
- a reverse flute formed in a form of a groove on the outer circumference of the drill body so that cut bone chips are collected as the drill body rotates, and having a rotational direction and reverse directionality of the drill body so that the collected bone chips are pushed toward an end portion of the drill bod entering an inside of a drilling hole of the drill body by a rotation of the drill body;
- wherein the reverse flute increases in depth toward the end portion of the drill body such that a chip-receiving capacity of the reverse flute increases toward the end portion to facilitate smoother inward conveyance of the bone chips into the drilling hole.
1 more element
An implant drill, comprising:
- a drill body having a shank to be coupled to a handpiece;
- a vertical cutting edge formed to protrude from an end portion of the drill body;
- and
- a reverse flute formed in a form of a groove on an outer circumference of the drill body so that cut bone chips are collected as the drill body rotates, and having a rotational direction and reverse directionality of the drill body so that the collected bone chips are pushed toward the end portion entering an inside of a drilling hole of the drill body by a rotation of the drill body,
- wherein a space portion in which bone chips are collected is formed between a left side surface of the vertical cutting edge and the end portion of the drill body, and between a right side surface of the vertical cutting edge and the end portion of the drill body, respectively;
- and
- wherein the reverse flute is in communication with the space portion so that the bone chips collected in the space portion are guided into the reverse flute and are pushed toward the end portion entering the inside of the drilling hole of the drill body by rotation of the drill body.
4 more elements
Dependencies are inferred from the claim text.