Title:
骨固定機構
Document Type and Number:
Japanese Patent JP5025862
Kind Code:
B2
Abstract:
An orthopaedic method and anchor assemblies for anchoring a linkage such as a rod or cable used for fixation or reduction. One assembly includes an anchor plate and a slotted anchor bolt that captures the plate in a one-piece assembly for convenient installation. The base of the anchor bolt lies below the plate, and a cap or nut tightens down to secure a linking member, e.g., a rod or cable, in the slot, simultaneously clamping the bolt to fix both its position and its orientation on the plate. One occipital plate has lateral arms that hold the anchor bolts, and a Y-shaped embodiment is mounted in an inverted orientation to position the anchor bolts well down in soft tissue for more effective wound closure. A cable connector is used together with an anchor plate, vertebra anchor screws and fixation rods to secure ends of a cable at the level of one or more vertebrae, providing a versatile and highly stable system for alignment, fixation and fusing of the cervical and thoracic spine. The cable connectors have an open-sided channel that fits onto and securely clamps to an already-positioned fixation rod, with an eyelet or other structure providing a rigid and fixed securing point for a cable that is threaded about the vertebrae under tension. Methods of fixation are described.
Inventors:
Louis Harkey
Bradford Carrier
David M Cellbitry
Martin A. Reynolds
Thomas Buoy Doherty
Bradford Carrier
David M Cellbitry
Martin A. Reynolds
Thomas Buoy Doherty
Application Number:
JP2001239468A
Publication Date:
September 12, 2012
Filing Date:
August 07, 2001
Export Citation:
Assignee:
DEPUY SPINE,INC.
International Classes:
A61B17/58; A61B17/68; A61B17/70
Foreign References:
| US5713898 | ||||
| WO1995031147A1 | ||||
| US6086590 |
Attorney, Agent or Firm:
Konobu Kato