Title:
圧縮骨断片ワイヤ
Document Type and Number:
Japanese Patent JP2006506181
Kind Code:
A
Abstract:
A bone fragment wire connects a bone fragment to an anchor bone for a healing duration. The bone fragment wire has a distal bone penetration section which is advanced into the bone and a proximal bone exterior section. The proximal bone exterior section is longer than the bone penetration section, and thus extends substantially out of the bone during healing of the bone. The bone penetration section includes a distal bone anchor section which threadingly engages the anchor bone, and a proximal fragment section of small diameter. The fragment section fits within the overbore created by advancing the bone anchor section through the bone fragment, and thus extends through but does not positively engage the bone fragment. A compression engagement on a distal end of the bone exterior section provides a compression shoulder. In one embodiment the compression engagement is provided by a threaded compression nut, while in another embodiment the compression engagement is permanently affixed to the bone wire. The shoulder makes substantial contact with an exterior surface of the bone fragment, biasing the bone fragment toward the anchor bone with a controlled compression force. The compression engagement is further adapted, such as through thread form and/or with a sloped proximal side, to enable the bone wire to be more easily removed from the healed fracture without damaging surrounding tissue.
Inventors:
Weiner, Ron S.
Cool, thomas
Cool, thomas
Application Number:
JP2004553682A
Publication Date:
February 23, 2006
Filing Date:
November 13, 2003
Export Citation:
Assignee:
Millennium Medical Technologies, Inc.
International Classes:
A61B17/58; A61B17/68; A61B17/86
Attorney, Agent or Firm:
Hidesaku Yamamoto
Takaaki Yasumura
Natsuki Morishita
Takaaki Yasumura
Natsuki Morishita