Anterior dorso-lumbar spinal osteosynthesis instrumentation for the correction of kyphosis
First Claim
1. Anterior dorso-lumbar spinal osteosynthesis instrumentation for the correction of kyphosis due to the destruction of one or two vertebral bodies, comprising in combination:
- a pair of vertebral implants;
bone screws for anchorage of said implants to two corresponding vertebrae located on each side of a damaged vertebra;
a plate having two end portions for connection to said two implants;
means for fixing said end portions to said implants;
said two end portions of said plate having a rounded periphery; and
said fixing means including first apertures defined in each of said implants, second apertures defined in said end portions of said plate, and fixing screws provided with rounded heads so that the surface of said fixing screws is flush with the surface of said plate when said fixing screws are anchored in a central aperture of said first apertures of said implants and said second apertures of the respective end portions of said plate.
2 Assignments
0 Petitions
Accused Products
Abstract
The instrumentation comprises a pair of vertebral implants (1) provided with screws (4) for anchorage to two corresponding vertebrae located on each side of a damaged vertebra, and a plate (3) having two end portions (3a) for connection to the two implants, and equipped with serration (6, 15) for fixing it to the implants. The end portions (3a) of the plate have a rounded periphery and the instrumentation comprises fixing screws (50) having heads (51) which are rounded so that their surface is flush with the surface of the plate when they are anchored in the apertures of the implant and the apertures of the end portion (3a) of the plate. This arrangement ensures that the ends of the plate (3) do not come into contact with the vertebral discs when the angular position of the plate (3) relative to the implants varies, and reduces the overall size of the instrumentation.
163 Citations
8 Claims
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1. Anterior dorso-lumbar spinal osteosynthesis instrumentation for the correction of kyphosis due to the destruction of one or two vertebral bodies, comprising in combination:
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a pair of vertebral implants; bone screws for anchorage of said implants to two corresponding vertebrae located on each side of a damaged vertebra; a plate having two end portions for connection to said two implants; means for fixing said end portions to said implants; said two end portions of said plate having a rounded periphery; and said fixing means including first apertures defined in each of said implants, second apertures defined in said end portions of said plate, and fixing screws provided with rounded heads so that the surface of said fixing screws is flush with the surface of said plate when said fixing screws are anchored in a central aperture of said first apertures of said implants and said second apertures of the respective end portions of said plate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification