Title:
自由分割可能な外科用穴あけガイドおよびプレート
Document Type and Number:
Japanese Patent JP3996211
Kind Code:
B2
Abstract:
Instrumentation for osteofixation including a locking bone plate and a surgical drill guide. The plate has a plurality of fastener holes with inner walls of a preselected hole diameter. The drill guide has a guide member, for guiding a drill bit, and a hollow collet disposed substantially coaxially with the guide member. A radially expandable forward end of the collet comprises a radially expandable neck and an outwardly projecting rim disposed forward of the neck. This rim defines a contracted outer rim diameter that is smaller than the hole diameter in a contracted collet position, and an expanded outer rim diameter that is larger than the hole diameter in an expanded position. Thus, the rim is freely extractable through the plate hole in the contracted position, but is unreceivable through the plate hole in the expanded position. The collet neck is configured and dimensioned to press outwardly against an inner wall of the plate hole when the neck is expanded.
Inventors:
Cesaron Morix Daniel
Application Number:
JP50624299A
Publication Date:
October 24, 2007
Filing Date:
June 20, 1998
Export Citation:
Assignee:
Gintes Gesellschaft Mito Beschlenktel Haftung
International Classes:
A61B17/16; A61B17/17; A61B17/58; A61B17/80
Domestic Patent References:
| JP8294495A |
Foreign References:
| US2494229 |
Attorney, Agent or Firm:
Kazunori Saito