Osteosynthesis system for vertebra arthrodesis
- Reims, FR
- L'Etrat, FR
- Chaumont, FR
- Montpellier, FR
An osteosynthesis system for vertebral arthrodesis, having at least one vertebral compression or distraction bar capable of extending over a portion at least of the rachis; at least one vertebral anchoring member having an end head with a spherical surface, an intermediate shank and a vertebral anchoring portion; and, associated with each anchoring member, a common support for receiving, coupling and immobilizing the vertebral anchoring member and the bar, the common support including a first concave housing for receiving the bar, a second concave housing, for receiving the spherical head, and a screwthreaded member, for immobilization of the bar and the anchoring member on the support, the immobilization member having at least one nut which is screwed onto a screwthreaded portion of the support. The first housing is disposed to the exterior of the screwthreaded portion of the support and is open laterally and upwardly, in opposite relationship to the rachis, so that the bar is immobilized by a peripheral portion of the nut.
- Research Organization:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- DOE Contract Number:
- W-7405-ENG-48
- Assignee:
- Aesculap AG & Co. KG (Tuttlingen, DE)
- Patent Number(s):
- US 6086588
- OSTI ID:
- 873079
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
vertebra
arthrodesis
vertebral
compression
distraction
bar
capable
extending
portion
rachis
anchoring
head
spherical
surface
intermediate
shank
associated
common
support
receiving
coupling
immobilizing
including
concave
housing
screwthreaded
immobilization
nut
screwed
disposed
exterior
laterally
upwardly
opposite
relationship
immobilized
peripheral
threaded portion
spherical surface
support including
peripheral portion
common support
spherical head
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