Title:
医療用ねじおよびその取付方法
Document Type and Number:
Japanese Patent JP4864276
Kind Code:
B2
Abstract:
A medical screw includes a shaft having a threaded portion and a distal guiding tip for introducing the screw into a pre-drilled implantation site. The threaded portion of the medical screw has a first series of helical threads having a first diameter and a second series of helical threads interleaved with the first series of helical thread and having a second diameter, where the first diameter is different than the second diameter. In addition, the medical screw may have a counter-rotation channel configured to receive bone growth.
Inventors:
Baldwin, Jeffrey, Pea.
Hatch, Laird, Elle.
Hatch, Laird, Elle.
Application Number:
JP2002515157A
Publication Date:
February 01, 2012
Filing Date:
August 01, 2001
Export Citation:
Assignee:
Orthopedic Bio Systems Limited Incorporated
International Classes:
A61B17/58; A61B17/04; A61B17/86
Foreign References:
| US5871486A | 1999-02-16 | |||
| US5743914A | 1998-04-28 |
Attorney, Agent or Firm:
Masatake Shiga
Takashi Watanabe
Yasuhiko Murayama
Shinya Mitsuhiro
Takashi Watanabe
Yasuhiko Murayama
Shinya Mitsuhiro