Intervertebral retrieval device

Details Intervertebral retrieval device Intervertebral retrieval device

2000-08-18

2002-08-13

McDermott, Corrine (Department: 3738)

Prosthesis (i.e., artificial body members), parts thereof, or ai

Implantable prosthesis

Bone

C623S017110, C606S064000

Reexamination Certificate

active

06432140

ABSTRACT:

FIELD OF THE INVENTION
The present invention relates to an intervertebral retrieval device.
BACKGROUND OF THE INVENTION
The conventional intervertebral disc spacer is used in conjunction with the auxiliary fixation devices, such as the bone nail and the fixation rod, so as to prevent the disengagement of the disc spacer. The use of the auxiliary fixation devices refrain the intervertebral motion between the two vertebrae spaced by the disc spacer. In addition, the auxiliary fixation devices are not effective in averting the disengagement of the disc spacer with the vertebrae.
It is the primary objective of the present invetention to provide an intervertebral retrieval device free from the drawbacks of the prior art devices described above.
It is another objective of the present invention to provide an intervertebral retrieval device comprising a block body having an inclined hole, and a bone nail.
It is another further objective of the present invention to provide an intervertebral retrieval device comprising a plurality of block bodies and bone nails. The device of the present invention is used in conjunction with the auxiliary fixation device.
SUMMARY OF THE INVENTION
The present invention provides an intervertebral retrieval device comprising a block body provided on an upper surface and a lower surface thereof with a plurality of protruded teeth, and with an inclined hole at at least one of said upper surface and lower surface; and
a bone nail fastened onto a vertebra contacting the upper surface or the lower surface of said block body with a portion of the bone nail inserting into said inclined hole of said block body.
In spite of the use of the device of the present invention in conjunction with the auxiliary fixation device, the intervertebral retrieval device of the present invention allows a relatively greater freedom of intervertebral movement between the vertebrae. This is due to the fact that the bone nail and the inclined hole of the block body of the present invention are not joined together intimately. In light of the bone nail being fastened onto the vertebra, the block body and the vertebrae are fused together.


REFERENCES:
patent: 4904261 (1990-02-01), Dove et al.
patent: 5171279 (1992-12-01), Mathews
patent: 5397364 (1995-03-01), Kozak et al.
patent: 6056749 (2000-05-01), Kuslich
patent: 6080158 (2000-06-01), Lin
patent: 6106557 (2000-08-01), Robioneck et al.
patent: 6176882 (2001-01-01), Biedermann et al.
patent: 6206922 (2001-03-01), Zdeblick et al.
patent: 6277149 (2001-08-01), Boyle et al.
patent: 6306170 (2001-10-01), Ray

Affiliated with

Also associated with

Rating

Intervertebral retrieval device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Intervertebral retrieval device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Intervertebral retrieval device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2890118