Title:
並進及び回転動作を許容する人工の椎間関節
Document Type and Number:
Japanese Patent JP4047937
Kind Code:
B2
Abstract:
An intervertebral joint prosthesis (20) having a ball component (22) for engagement with a first vertebra (26) and a trough component (24) for engagement with a second vertebra (27) adjacent to the first vertebra (26) is disclosed. The trough component (24) includes a generally concave surface (50) having a substantially flat portion (52). When the ball component (22) and the trough component (24) are engaged to their respective vertebrae (26, 27), the ball component (72) and the trough component (24) engage each other, permitting rotation and translation of the vertebrae (26, 27) with respect to each other. Both components (22, 24) include a flange (34, 56) for engaging a vertebra (26, 27). The invention also contemplates a tool (70) for use in implanting a two-piece intervertebral joint prosthesis (20).
Inventors:
Jill, Stephen S.
Walker, Colin
Van hawke, james
Rally, ghost
Walker, Colin
Van hawke, james
Rally, ghost
Application Number:
JP54967898A
Publication Date:
February 13, 2008
Filing Date:
October 22, 1998
Export Citation:
Assignee:
Warsaw Orthopedic Incorporated
International Classes:
A61F2/44; A61F2/46; A61B17/17; A61B17/86; A61F2/00; A61F2/30
Domestic Patent References:
| JP4505574A | ||||
| JP10501705A | ||||
| JP6007390A | ||||
| JP11137585A |
Foreign References:
| FR2737656A1 | ||||
| EP0699426A1 | ||||
| FR2718635A1 |
Attorney, Agent or Firm:
Kazuo Shamoto
Shinjiro Ono
Akio Chiba
Hiroyuki Tomita
Hiroyuki Uchida
Shigeo Takeuchi
Takami Ito
Akutsu Katsuhisa
Shosuke Imai
Tadashi Masui
Tadahiko Kurita
Yasushi Kobayashi
Shinjiro Ono
Akio Chiba
Hiroyuki Tomita
Hiroyuki Uchida
Shigeo Takeuchi
Takami Ito
Akutsu Katsuhisa
Shosuke Imai
Tadashi Masui
Tadahiko Kurita
Yasushi Kobayashi