Title:
患者の頭骨に固定される頭骨用ボルト、頭骨用ボルトのねじ切りされた部分を頭骨に挿入するための挿入器具、および患者の頭骨に頭骨用ボルトを固定する方法
Document Type and Number:
Japanese Patent JP4790303
Kind Code:
B2
Abstract:
A cranial bolt (100) secured to a skull (102) of a patient includes a threaded portion (200) and a lumen portion (300). Threaded portion has an inner surface forming a central passageway (204) which extends throughout the threaded portion. The inner surface includes a connector (206) mating with the lumen portion. The threaded portion has an outer surface having a plurality of threads (210) for engaging a hole formed in the patient's skull. The lumen portion includes a stem portion (302) that enters the central passageway and engages the mating connector. A fluid tight seal is formed between the inner surface of the threaded portion and the stem portion. At least two lumens (312) are disposed through the stem portion and the base portion (310). The lumens have a proximal end opening outside the skull and a distal end opening inside the skull. One embodiment includes sensor lumens diverging from the centerline and another allows lumen portion to rotate independent of threaded portion.
Inventors:
Stephen F Wilsom
Michael Sea Gorhan
Michael Sea Gorhan
Application Number:
JP2005134371A
Publication Date:
October 12, 2011
Filing Date:
May 02, 2005
Export Citation:
Assignee:
Codman & Shurtleff, Inc.
International Classes:
A61B17/56; A61B17/58; A61B5/03; A61B17/34; A61M1/00; A61M27/00; A61B19/00
Foreign References:
| WO2002070037A2 | ||||
| US6454774 | ||||
| US3055370 | ||||
| US4903707 | ||||
| GB2355665A |
Attorney, Agent or Firm:
Konobu Kato