Vertebral implant, method for the placement of such an implant and tool for the placement of the implant
AssigneeBpath
InventorsRichard Laurent MINFELDE, Jacques SENEGAS
Life of this patent
Estimating the term…
Abstract
The invention relates to a vertebral implant placed after a laminectomy and fixed by transfacet screws arranged in a translaminar direction. The invention also relates to a placement instrument and to a method for the placement of an implant.
Claims16
A vertebral implant comprising a first body and a second body that are hinged to each other, and two transfacet connection screws, each having a threaded shank provided with a partially spherical head, each body comprising both a portion for connection to the other body and also a base having a soleplate arranged to face towards a portion of vertebra that has been exposed by laminectomy, the base being provided with a hole having a first end opening out into the soleplate and a second end that opens out at the opposite end and that is provided with a recess for receiving the screw head, the base also being provided with a slot extending along the hole and opening out laterally into the hole in order to enable lateral insertion of the screw in the hole.
An instrument for putting screws into place in a vertebra after laminectomy, the instrument comprising forceps having a first jaw co-operating with a guide tube and a second jaw, the guide tube having an open first end arranged to bear on a portion of vertebra left uncovered by the laminectomy and an open second end arranged to enable a drilling member to be inserted in the guide tube, the second jaw having an end extending substantially facing the first end of the guide tube.
16-20. (canceled)
Dependencies are inferred from the claim text.