Title:
多軸式骨固定要素
Document Type and Number:
Japanese Patent JP6965257
Kind Code:
B2
Abstract:
A fastener device includes an anchor body that defines a through hole. The anchor body further includes an inner surface that defines a least a portion of the through hole. The fastener includes a head, a threaded shaft that extends out with respect to the head in a distal direction, and a neck between the head and threaded shaft. The head includes an outer surface configured to articulate along the inner surface when the fastener head is inserted in the through hole. At least a portion of the outer surface is convex and defines a portion of a sphere that defines a first diameter. The neck defines a second diameter and the fastener defines a ratio of the first diameter to the second diameter in a range between about 2 to 1 and about 3 to 1.
Inventors:
Ramsey Christopher
Di Binzenzo John
Di Binzenzo John
Application Number:
JP2018544849A
Publication Date:
November 10, 2021
Filing Date:
February 24, 2017
Export Citation:
Assignee:
Medos International SARL
International Classes:
A61B17/86
Domestic Patent References:
| JP2013094675A | ||||
| JP2015057123A | ||||
| JP2007526007A | ||||
| JP2002233532A | ||||
| JP7180714A |
Foreign References:
| US8167914 | ||||
| WO2015005347A1 | ||||
| WO2012088890A1 |
Attorney, Agent or Firm:
Konobu Kato
Takafumi Oshima
Takafumi Oshima
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