Implant for filling a space between vertebrae
First Claim
1. A spinal implant selectively insertable as a vertebral replacement and as an insert between vertebrae, said implant comprising:
- an inner implant part having a tubular perforated sleeve and formed with a screw thread;
an outer implant part having a tubular perforated sleeve and receiving said sleeve of said inner implant part, said sleeve of said inner implant part being axially slidable in said sleeve of said outer implant part;
a center implant part braced on an end of said outer implant part and threadedly engaged with the screw thread on said sleeve of said inner implant part for altering a length of said implant, said parts and said screw thread being coaxial; and
means for preventing relative rotation of said inner and outer implant parts about a common axis of said sleeves.
2 Assignments
0 Petitions
Accused Products
Abstract
The implant includes of two end implant parts (1, 2) for positioning on the adjacent vertebrae and a center implant part (3) arranged therebetween, which is connected by a thread (4) with one of the end implant parts, whereby by turning the center implant part (3) the length of the implant can be altogether changed. The end implant parts (1, 2) form tubular sleeves (5'"'"', 5") with sleeve walls perforated by openings (6) and interengage axially with their sleeves (5'"'"', 5"), whereby they are guided on the sleeve walls to be axially slidable with respect to each other, as well as secured against mutual pivoting about the sleeve axis. The thread (4) is provided between the center implant part (3) and the end implant part (1) connected therewith by the thread and the center implant part (3) pivotable in the thread (4) is designed as an axial stop for the other end implant part (2).
558 Citations
6 Claims
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1. A spinal implant selectively insertable as a vertebral replacement and as an insert between vertebrae, said implant comprising:
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an inner implant part having a tubular perforated sleeve and formed with a screw thread; an outer implant part having a tubular perforated sleeve and receiving said sleeve of said inner implant part, said sleeve of said inner implant part being axially slidable in said sleeve of said outer implant part; a center implant part braced on an end of said outer implant part and threadedly engaged with the screw thread on said sleeve of said inner implant part for altering a length of said implant, said parts and said screw thread being coaxial; and means for preventing relative rotation of said inner and outer implant parts about a common axis of said sleeves. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification