Abstract:
An anchoring system for implanting in bone, the system comprising a first coupling assembly having a first clamp and a first coupling body that receives and holds a first stabilization element; a second coupling assembly that receives and holds a second stabilization element; and a plate that attaches to the first coupling assembly and the second coupling assembly, wherein the first coupling assembly attaches to a bone fastener, and wherein the first coupling body includes a cap retainer that receives a locking cap that applies a directional force to force the first coupling body toward the plate, and applies another directional force to force the first clamp toward the plate, thereby fixedly securing the first coupling body and the first clamp to the plate.
Abstract:
Implant (1) de fixation sacro-iliaque pour une barre de liaison intervertébrale, comprenant une pièce d'ancrage monobloc supportant un élément de connexion (3) de la barre de liaison et pourvue de trois orifices pour le passage de vis d'ancrage (61, 62, 63), où la pièce d'ancrage comprend : - une paroi principale (4) allongée dans laquelle sont ménagés deux orifices, où l'élément de connexion est intercalé entre les deux orifices; et - une paroi secondaire (5) faisant saillie de la paroi principale au niveau d'une extrémité de sorte que la pièce d'ancrage présente une forme générale en « L », un troisième orifice étant ménagé sur ladite paroi secondaire; où chaque orifice est délimité intérieurement par une face d'appui en portion sphérique prolongée par une face évasée en portion tronconique centrées sur un axe central, et où les orientations des axes centraux et les angles de conicité des faces évasées sont conformés pour autoriser une disposition des axes de vissage des trois vis d'ancrage selon un trièdre tri-orthogonal.
Abstract:
The present invention provides a method for stabilizing a fractured bone. The method includes positioning an elongate rod in the medullary canal of the fractured bone and forming a passageway through the cortex of the bone. The passageway extends from the exterior surface of the bone to the medullary canal of the bone. The method also includes creating a bonding region on the elongate rod. The bonding region is generally aligned with the passageway of the cortex. Furthermore, the method includes positioning a fastener in the passageway of the cortex and on the bonding region of the elongate rod and thermally bonding the fastener to the bonding region of the elongate rod while the fastener is positioned in the passageway of the cortex.
Abstract:
The present invention provides a method for stabilizing a fractured bone. The method includes positioning an elongate rod in the medullary canal of the fractured bone and forming a passageway through the cortex of the bone. The passageway extends from the exterior surface of the bone to the medullary canal of the bone. The method also includes creating a bonding region on the elongate rod. The bonding region is generally aligned with the passageway of the cortex. Furthermore, the method includes positioning a fastener in the passageway of the cortex and on the bonding region of the elongate rod and thermally bonding the fastener to the bonding region of the elongate rod while the fastener is positioned in the passageway of the cortex.
Abstract:
Methods and devices for static or dynamic spine stabilization include an anterior plating system that allows longitudinal and pivoting motion of the plates and of the stabilized vertebras. In one embodiment a spine fixation assembly for connecting a first vertebra to a second vertebra includes a first plate configured to be attached to one or more locations of the first vertebra and a second plate configured to be attached to one or more locations of the second vertebra. The first plate is pivotally connected to the second plate and may also allow longitudinal and/or horizontal motion of the plates relative to each other.
Abstract:
In one embodiment a device for retracting tissue provides access to a spinal location within a patient. The device has an elongate body that has a proximal end and a distal end. The elongate body has a length between the proximal and distal ends such that the distal end can be positioned inside the patient adjacent the spinal location. The elongate body has a generally oval shaped proximal portion and an expandable distal portion. A passage extends through the elongate body between the proximal and distal ends. The passage is defined by a smooth metal inner surface extending substantially entirely around the perimeter of the passage between the proximal and distal ends. The elongate body is expandable between a first configuration sized for insertion into the patient and a second configuration wherein the cross-sectional area of the passage at the distal end is greater than the cross-sectional area of the passage at the proximal end.
Abstract:
A device for supporting and/or assisting in bone fusion, particularly in the spine, is described. A plate member is provided, along with two or more attachment members that are anchorable to bones. In one embodiment, the plate member has a slot near one end and an aperture at another end. The attachment members include threaded posts for connection to the plate member via the latter's slot(s) and aperture(s). Alternatively, attachment members need not have a threaded post, and attachment members may be connected to the plate member via a bone bolt or similar fixation member. The slot(s) allow a single plate member to be used for a variety of operative situations and anatomies. A device for repositioning bones and a method for using the disclosed devices is also described.
Abstract:
A method for stabilizing a cervical spine segment includes implanting a respective uncinate joint stabilizer into each uncinate joint of the cervical spine segment to stabilize the uncinate joints and thereby stabilize the cervical spine segment. A system for stabilizing a cervical spine segment includes a pair of uncinate joint stabilizers for stabilizing a respective pair of uncinate joints of the cervical spine segment, wherein each uncinate joint stabilizer is elongated along a lengthwise dimension and configured for placement in the respective uncinate joint with the lengthwise dimension substantially oriented along an anterior-to-posterior direction of the cervical spine segment, and wherein each uncinate joint stabilizer has height in a heightwise dimension orthogonal to the lengthwise dimension and the height is configured to define spacing of the respective uncinate joint.
Abstract:
A spinal plate system includes a screw, spinal plate and cap. A head of the screw includes a portion of a first sphere that has a first center and a portion of a second sphere that has a second center approximately concentric with the first center. A body of the screw extends from the first sphere. The spinal plate includes an opening through the spinal plate and an associated recess in the spinal plate that is eccentric with the opening. The cap includes an alignment opening and is configured to be rotationally engaged in the recess between a first rotational configuration and a second rotational configuration. In the first rotational configuration, the body threads into a vertebra in a selected trajectory through the alignment opening and the opening in the spinal plate and the head engages at least a portion of the opening in the selected trajectory.