Title:
Non-circular vertebral root screw
Document Type and Number:
Japanese Patent JP6346665
Kind Code:
B2
Abstract:
A medical bone screw in particular in pedicle screw design includes a screw-and-thread shaft which has a distal shaft portion of a preferably smaller core diameter that transitions into a proximal shaft portion of a preferably larger core diameter, whose proximal end is provided with a screw head. The core cross-sectional shape along the distal shaft portion is formed to be out-of-round, preferably polygonal, and the core cross-sectional shape along the proximal shaft portion is formed to be circular.
Inventors:
Lindner Stefan
Bogaho Yuan-Yose
Bogaho Yuan-Yose
Application Number:
JP2016522468A
Publication Date:
June 20, 2018
Filing Date:
June 25, 2014
Export Citation:
Assignee:
Ionbond AG Olten
International Classes:
A61B17/86; A61B17/70
Domestic Patent References:
| JP8206143A | ||||
| JP2009513899A | ||||
| JP10043199A | ||||
| JP52060557U |
Foreign References:
| US20110152948 |
Attorney, Agent or Firm:
Kaiyu International Patent Office