Title:
多軸性固定ねじプレートアセンブリ
Document Type and Number:
Japanese Patent JP4612670
Kind Code:
B2
Abstract:
A bone fixation screw includes a threaded screw shank and a screw head having upper and lower ends. The screw head lower end is secured to a proximal end of said screw shank. The screw head has substantially frustospherical shaped side surfaces and is split into segments at one of the ends. The head is radially expandable at the one end. An expansion screw is centrally received in the screw head. An interface between the expansion screw and the screw head forms a cam mechanism for expanding the screw head upon axial rotation of the expansion screw.
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Inventors:
Dalton, Brian Yee.
Application Number:
JP2007500849A
Publication Date:
January 12, 2011
Filing Date:
February 04, 2005
Export Citation:
Assignee:
Ice scrap, incorporated
International Classes:
A61B17/58; A61B17/70; A61B17/80
Domestic Patent References:
| JP2003526444A | ||||
| JP2002143176A | ||||
| JP11504227A | ||||
| JP11503351A | ||||
| JP11500334A |
Foreign References:
| US6248105 | ||||
| US0037665 |
Attorney, Agent or Firm:
Hidesaku Yamamoto
Takaaki Yasumura
Natsuki Morishita
Takaaki Yasumura
Natsuki Morishita