Title:
ドリルビット及びドリルビットの製造方法
Document Type and Number:
Japanese Patent JP5273896
Kind Code:
B2
Abstract:
A drill bit comprising: a shaft (103) which has a pyramidal shaped end (105) defining a drill tip with a plurality of edges defining the pyramidal shape; and one or more recesses (107) for directing away debris produced whilst drilling, the or each recess (107) having a first portion (109) extending along the shaft (103) and a second portion (111) which extends along the drill tip, wherein the second portion (111) of the or each recess (107) extends along an edge (113) of the drill tip.
Inventors:
Ellis, Ryan, Patrick
Application Number:
JP2004526505A
Publication Date:
August 28, 2013
Filing Date:
August 07, 2003
Export Citation:
Assignee:
Surgebit IP Holdings Proprietary Limited
International Classes:
B23B51/00; A61B17/16
Domestic Patent References:
| JP2292106A | ||||
| JP11510103A | ||||
| JP9501109A | ||||
| JP200084720A |
Foreign References:
| WO2001019279A1 |
Attorney, Agent or Firm:
Patent Business Corporation Takewa International Patent Office