Title:
DRILL AND REAMER FOR BONE PERFORATION
Document Type and Number:
Japanese Patent JP3916417
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a drill structured for preventing fixing of the drill and a guide member caused by the compression of bone powder, etc., generated in bone perforation in a gap between the guide member and the drill, concerning the drill for bone perforation having an axis hole which a guide member inserted to a bone is put through slidably.
SOLUTION: A horizontal hole 13 formed putting through from the inner surface 11b of the axis hole to the outside surface 1b of the drill and having a diameter ranging 0.5 to 2 time of the diameter of an axis hole 11 is formed so that at least a part of this hole 13 may exist at a position within three times of the diameter of the hole 11 from a drill tip 1a. Thus, the bone powder, etc., B having entered in a gap 12 from the tip 1a is discharged from the hole 13 to prevent the compression of the bone powder B within the gap 12.
Inventors:
Junji Ito
Kenji Doi
Kenji Doi
Application Number:
JP2001174535A
Publication Date:
May 16, 2007
Filing Date:
June 08, 2001
Export Citation:
Assignee:
KABUSHIKI KAISHA KOBE SEIKO SHO
International Classes:
A61B17/16; A61B17/17; A61B17/56; (IPC1-7): A61B17/16; A61B17/56
Domestic Patent References:
| JP7079984A | ||||
| JP60122118U | ||||
| JP10512463A |
Attorney, Agent or Firm:
Yoshiyuki Kaji
Makoto Suhara
Makoto Suhara
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