Abstract:
A tissue extender includes a ring defining a proximal end opening to engage a head of a subcutaneous screw, a first extender portion coupled to the ring at a proximal end of the first extender portion, and a second extender portion coupled to the ring at a proximal end of the second extender portion. The first extender portion includes a first coupling portion disposed at a distal end of the first extender portion, and the second extender portion includes a second coupling portion at a distal end of the second extender portion. The first and second extender portions define two side openings disposed on opposite sides of the tissue extender. The distal ends of the first and second extender portions together define a distal end opening. The first coupling portion engages the second coupling portion when the tissue extender is in an extended state. The distal end opening is larger in the extended state than in an unextended state.
Abstract:
Derotation instrument assemblies (500, 600, 700) and systems (512, 514, 602) are provided to facilitate positioning one or more vertebrae of a spinal column into a desired alignment. The instrument assemblies (500, 600, 700) and systems (512, 514, 602) include implant holders (10, 502, 610, 710, 710') engageable to respective implants (550) engaged to vertebrae of the spinal column, transverse bridges (100, 504, 750, 770, 1100) to connect implant holders (10, 502, 610, 710, 710') associated with a particular vertebra, and inter-level linking assemblies (510, 1160) to connect instrument assemblies (500, 600, 700) associated with different vertebrae. Derotation handles (506) can be provided on the implant holders (10, 502, 610, 710, 710') to facilitate application of the alignment forces, while the assemblies (500, 600, 700) distribute the corrective forces to the connected implants and vertebrae.
Abstract:
Derotation instrument assemblies (500, 600, 700) and systems (512, 514, 602) are provided to facilitate positioning one or more vertebrae of a spinal column into a desired alignment. The instrument assemblies (500, 600, 700) and systems (512, 514, 602) include implant holders (10, 502, 610, 710, 710') engageable to respective implants (550) engaged to vertebrae of the spinal column, transverse bridges (100, 504, 750, 770, 1100) to connect implant holders (10, 502, 610, 710, 710') associated with a particular vertebra, and inter-level linking assemblies (510, 1160) to connect instrument assemblies (500, 600, 700) associated with different vertebrae. Derotation handles (506) can be provided on the implant holders (10, 502, 610, 710, 710') to facilitate application of the alignment forces, while the assemblies (500, 600, 700) distribute the corrective forces to the connected implants and vertebrae.
Abstract:
A staple for stabilizing the attachment of a vertebral screw and a longitudinal member to the spine. The staple (1) has a plate (2A, 2B) with first (7) and second (8) apertures. All the staple's legs, prongs, or spikes (3, 4, 5) attached to the underside (6) of the staple (1) are located closer to one particular aperture (7) than the other (8). Preferably, the plate is also "bow-tie" shaped with a groove (11) that separates the wings (9, 10) of the bow-tie. This bow-tie or hour glass shape combined with the groove help the surgeon to more easily conform the plate to the patient's vertebra.
Abstract:
An adjustable vertebral body elevator is disclosed and can include a handle and a spoon rotatably coupled to the handle by a locking assembly. The handle can rotate with respect to the spoon around an axis or rotation. Further, the locking assembly can be coaxial with the axis of rotation.
Abstract:
A tissue extender includes a ring defining a proximal end opening to engage a head of a subcutaneous screw, a first extender portion coupled to the ring at a proximal end of the first extender portion, and a second extender portion coupled to the ring at a proximal end of the second extender portion. The first extender portion includes a first coupling portion disposed at a distal end of the first extender portion, and the second extender portion includes a second coupling portion at a distal end of the second extender portion. The first and second extender portions define two side openings disposed on opposite sides of the tissue extender. The distal ends of the first and second extender portions together define a distal end opening. The first coupling portion engages the second coupling portion when the tissue extender is in an extended state. The distal end opening is larger in the extended state than in an unextended state.
Abstract:
Element providing the connection between a longitudinal element (14) of a vertebral osteosynthesis device and a vertebra (3). It comprises: - a caudal hook (1) intended to be anchored to the caudal part of the said vertebra (3) following ablation of the spinal process; - a cephalad hook (7) intended to be anchored to the cephalad part of the said vertebra following ablation of the spinal process; the said hooks being situated on two elements which initially are separate. It comprises a stem, positioned in a hole formed in one of the said elements, means preventing the said stem from returning once it has been inserted in the said orifice, and a saddle intended to come into contact with the posterior arc of the vertebra, and apply pressure to the said posterior arc by means of the said stem. Vertebral osteosynthesis device comprising at least one such element. Tool for fitting same.
Abstract:
Derotation instrument assemblies (500, 600, 700) and systems (512, 514, 602) are provided to facilitate positioning one or more vertebrae of a spinal column into a desired alignment. The instrument assemblies (500, 600, 700) and systems (512, 514, 602) include implant holders (10, 502, 610, 710, 710') engageable to respective implants (550) engaged to vertebrae of the spinal column, transverse bridges (100, 504, 750, 770, 1100) to connect implant holders (10, 502, 610, 710, 710') associated with a particular vertebra, and inter-level linking assemblies (510, 1160) to connect instrument assemblies (500, 600, 700) associated with different vertebrae. Derotation handles (506) can be provided on the implant holders (10, 502, 610, 710, 710') to facilitate application of the alignment forces, while the assemblies (500, 600, 700) distribute the corrective forces to the connected implants and vertebrae.
Abstract:
Elément de liaison entre un élément longitudinal (14) d'un dispositif d'ostéosynthèse vertébrale et une vertèbre (3). Il comporte : - un crochet caudal (1 ) destiné à venir s'ancrer sur la partie caudale de ladite vertèbre (3) après ablation de l'apophyse épineuse; - un crochet céphalade (7) destiné à venir s'ancrer sur la partie céphalade de ladite vertèbre après ablation de l'apophyse épineuse; lesdits crochets étant situés sur deux éléments initialement séparés. Il comporte une tige, placée dans un orifice ménagé dans l'un desdits éléments, des moyens empêchant un retour de ladite tige après son insertion dans ledit orifice, et une selle destinée à venir au contact de l'arc postérieur de la vertèbre, et mise en pression sur ledit arc postérieur à l'aide de ladite tige. Dispositif d'ostéosynthèse vertébrale comportant au moins un tel élément. Outil de pose pour un tel élément.