Title:
脊椎を通る湾曲した軸方向孔を形成するための装置
Document Type and Number:
Japanese Patent JP4352204
Kind Code:
B2
Abstract:
One or more tools for use in shaped axially oriented bores extending from an accessed posterior or anterior target point are formed in the cephalad direction through vertebral bodies and intervening discs, if present, in general alignment with a visualized, trans-sacral axial instrumentation/fusion (TASIF) line in a minimally invasive, low trauma, manner. An anterior axial instrumentation/fusion line (AAIFL) or a posterior axial instrumentation/fusion line (PAIFL) that extends from the anterior or posterior target point, respectively, in the cephalad direction following the spinal curvature through one or more vertebral body is visualized by radiographic or fluoroscopic equipment. In one embodiment, curved anterior or posterior TASIF axial bores are formed in axial or parallel or diverging alignment with the visualized AAIFL or PAIFL, respectively, employing bore forming tools that can be manipulated from proximal portions thereof that are located outside the patient's body to adjust the curvature of the anterior or posterior TASIF axial bores as they are formed in the cephalad direction. Further bore enlarging tools are employed to enlarge one or more selected section of the anterior or posterior TASIF axial bore(s), e.g., the cephalad bore end or a disc space, so as to provide a recess therein that can be employed for various purposes, e.g., to provide anchoring surfaces for spinal implants inserted into the anterior or posterior TASIF axial bore(s).
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Inventors:
Crag Andrew H.
Kagan Jonathan
Kagan Jonathan
Application Number:
JP2001559333A
Publication Date:
October 28, 2009
Filing Date:
February 14, 2001
Export Citation:
Assignee:
Trans One Incorporated
International Classes:
A61B17/16; A61B17/56; A61B17/17; A61B17/22; A61B17/32; A61B17/70; A61B17/88; A61F2/44; A61F2/46; A61B17/00; A61B17/28; A61B17/66; A61F2/00; A61F2/28; A61F2/30; A61N5/10; A61B
Domestic Patent References:
| JP8509918A |
Foreign References:
| US5720749 | ||||
| WO1997031577A1 |
Attorney, Agent or Firm:
Eiji Saegusa
Kakehi Yuro
Takeshi Ohara
Hiroji Nakagawa
Yasumitsu Tate
Kenji Saito
Jun Fujii
Hitoshi Seki
Mutsuko Nakano
Kakehi Yuro
Takeshi Ohara
Hiroji Nakagawa
Yasumitsu Tate
Kenji Saito
Jun Fujii
Hitoshi Seki
Mutsuko Nakano