Abstract:
A detachable actuator arm as part of or in combination with an osteogenesis distractor device, the actuator arm being detachable from the distraction mechanism of the distractor device by manipulation of a proximally disposed release mechanism. A detachable actuator arm is provided as part of an osteogenesis distractor device or in combination with an osteogenesis distraction device, the actuator arm being structured such that its proximal end is configured to mate with a drive tool such that the arm may be rotated when needed, with the distal end of the arm being structured such that the arm is mated in lockable manner with the operative distraction mechanism of the distractor main body.
Abstract:
Set suitable for use in a bone-shortening osteotomy of a predetermined distance, the set comprising: an implant with threaded holes; an accessory with successively a first segment, a second segment and a third segment, wherein the first segment comprises first threaded holes and wherein the third segment comprises second threaded holes, and wherein the second segment comprises two guides which are each adapted to guide a saw blade so that the osteotomy of predetermined distance can be performed via the two guides.
Abstract:
Various embodiments of a device for tensioning an apparatus for fusion, stabilization, and/or fixation of bones are disclosed. In one embodiment, a device for tensioning an orthopedic device is provided, the device comprising: a screw drive; a screw gear; a body portion comprising a first cam lever and a second cam lever; and a cable operatively connected to the orthopedic device and operatively connected to the body portion; wherein rotation of the screw gear causes translation of the screw drive.
Abstract:
A bone fracture plate assembly including female and male plate portions. The female plate portion has a post, a female dovetail, and an extending arm with a group of ratchet teeth. The male plate portion has two upstanding posts, a male dovetail for coupling to the female dovetail so that the plate portions move linearly with respect to each other, a slot for the arm, and a pawl for engaging the ratchet teeth. A spring, coupled to the posts of the plate portions, dynamically connects the plate portions by applying a compressive load therebetween. The spring has a pair of elongated ears, each defining a slot to allow for relative movement of the plate portions. The ratchet teeth are engaged by the pawl to retain the plate portions together, and the spring mounts on the posts of the plate portions such that the spring biases the plate portions together.
Abstract:
An orthopedic plate comprising, a frame portion and a bearing rotatably coupled with the frame portion, wherein the bearing defines an opening configured to receive a fastener for fastening the orthopedic plate to a body, wherein the bearing includes an outer surface that is eccentric to the opening such that a position of the opening with respect to the frame portion is adjustable as the bearing rotates.
Abstract:
La présente invention concerne un équipement pour le rapprochement et la mise en compression de deux parties osseuses, qui est constitué : a/ d'une plaque (2) munie de plusieurs orifices traversants (12, 14, 16, 17), et b/ de moyens (3, 4) pour le rapprochement desdits deux parties osseuses, comprenant - une embase (20), apte à être fixée sur ladite plaque (2), comportant au moins un orifice traversant oblong (28) dont l'une des bordures latérales (28b) comporte une crémaillère (28b'), et - un outil de manœuvre (4) comprenant une tête (46) munie (i) d'une tige d'extrémité (47) destinée à être introduite dans un trou ménagé dans ledit matériau osseux et (ii) d'un pignon (48) destiné à engrener avec ladite crémaillère (28b') de l'embase (20), de sorte que la manœuvre en rotation de ladite tête (46) autour dudit axe de rotation fixe (4') provoque un mouvement de translation de ladite embase (20), et de ladite plaque (2) associée, par rapport à ladite tête (46), afin d'obtenir ladite manœuvre de rapprochement et de mise en compression recherchée.
Abstract:
Le dispositif d'ostéosynthèse, comporte : une première vis (21) de fixation d'une première embase (11) de maintien à un premier tronçon (101) d'un os (100); une seconde vis (21A,) de fixation d'une seconde embase (12) de maintien à un second tronçon (102) de l'os (100), et un élément de liaison (13) rigide reliant mutuellement les première (11) et seconde (12) embases, l'un parmi la première vis (21) et la première embase (11) comporte des une cavité de réception d'un support (31) d'un dispositif de repérage de position (41) associé.
Abstract:
A Static Compression Device (SC device) for active, measurable compression of a fusion graft by the surgeon at the time of surgery is disclosed. The SC device is attachable to adjacent vertebral bodies or other pieces of bone and has a device that applies compressive force to the adjacent vertebral bodies or pieces of bone to assist fusion according to Wolffs law. The SC device has a locking mechanism that maintains the compression applied at surgery, but prevents further compression (settling) from occurring after surgery. The SC device allows the surgeon the ability to compress a segment, measure the applied compression, and lock the segment in the compressed position. In one embodiment of the invention, the pressure is applied to the SC device through a compression device that applies a desired and measurable amount of force. In this embodiment, the combination of the SC device with a pressure applying and measuring device allows the surgeon more control over the force applied to a cervical, thoracic or lumbar implant than has previously been available. In the preferred embodiment, the SC device compresses two or more adjacent vertebrae across an adjacent bone graft to facilitate fusion of these vertebrae to treat pain produced by pressure from the disks between such vertebrae bulging and resulting in contact with and pressure on the spinal cord and adjacent nerve roots. In other embodiments, the SC device may be used to apply measurable compression across any type of bony interface (e.g. fractures) to facilitate union.
Abstract:
Spinal surgical systems include a compressor (40, 90) mountable to a first vertebra and positionable relative to a fulcrum (70, 120) mountable to a second vertebra. The compressor (40, 90) and fulcrum (70, 120) are manipulated relative to one another to compress the first and second vertebrae. The systems further include a distractor (140) mountable to a first vertebra and positionable relative to a fulcrum (70, 120) mountable to a second vertebra. The distractor (140) and fulcrum (70, 120) are manipulated relative to one another to distract the first and second vertebrae.
Abstract:
The invention concerns a vertebral osteosynthesis plate for maintaining the correction of the relative orientation of vertebrae with a correcting instrument (19), said osteosynthesis plate being generally rectangular in shape and having four slots (1, 2, 4, 5) for allowing through each a fixing means, at least two slots (4, 5) opening onto a lateral edge (6) of said osteosynthesis plate so as to enable the plate to be set and fixed without prior withdrawal of the instrument (19) correcting the relative orientation of the vertebrae.