摘要:
Devices and methods for spinal fixation employ at least first and second plates that are configured to allow progressive sliding advancement of the plate members toward one another and limit movement of the plate members away from one another after installation. A spring member associated with one bone plate may engage toothed section(s) on the other bone plate. The bone plates may each have arms that are spaced from one another and engaged by corresponding arms on the other bone plate. There may be more than two bone plates, with multiple restricted movement regions.
摘要:
A spinal rod connection system includes a first rod for attachment to the spinal column and a second rod for attachment to the skull releasably engaged to one another in end-to-end fashion by a coupling mechanism wherein the angle between the longitudinal axis of each of said first and second rods is variable.
摘要:
Devices and methods to prevent a screw from backing out of a plate. The plate includes an aperture for receiving a screw that is attached to the bone. A mount is positioned adjacent to the aperture and extends out from a face of the plate. A locking mechanism is attached to the mount and sized to extend over at least a portion of the inserted screw to prevent the screw from backing out of the aperture. One method comprises inserting a screw into the aperture to attach the plate to the bone. A locking mechanism is then attached to the mount. The locking mechanism is sized to extend over bone screw and prevent the screw from backing out.
摘要:
A spinal rod system includes a first instrument extending between a proximal portion and a distal portion along a longitudinal axis thereof. The proximal portion defines an inner cavity extending along the longitudinal axis. The first instrument includes a first arm extending along the longitudinal axis. The first arm defines a portion of a vertebral construct cavity disposed in communication with the inner cavity and includes a distal end being configured to engage a bone fastener. Methods of use are disclosed.
摘要:
A spinal correction system comprises an elongate member extending between a first end including a first inner surface defining a first cavity and a second end including a collar having a second inner surface defining a second cavity. The second cavity is movable relative to the elongate member in at least one orientation. The second end defining an elongated cavity. A first extender defines a first outer surface and a second extender defines a second outer surface. The elongate member is disposable between a first configuration and a second configuration such that the second cavity is movable in the at least one orientation to a position such that the first inner surface is forcibly disposable in a fixed engagement with the first outer surface and the interior surface is forcibly disposed in a fixed engagement with at least a portion of the collar. Methods of use are disclosed.
摘要:
A device for attaching an elongated member to a vertebral member and provide for dampened movement of the elongated member. The device may include a receiver that receives an elongated member. The receiver may be movably attached to an anchor that may be attached to a vertebral member. A dampener may be positioned within the receiver. Further, one or more slots may be positioned in the receiver. The dampener and/or slots dampen the translational movement of the receiver and attached elongated member relative to the anchor in first and second directions, and may also buffer forces applied into the spine.
摘要:
A device for attaching an elongated member to a vertebral member and provide for dampened movement of the elongated member. The device may include a receiver that receives an elongated member. The receiver may be movably attached to an anchor that may be attached to a vertebral member. A dampener may be positioned within the receiver. Further, one or more slots may be positioned in the receiver. The dampener and/or slots dampen the translational movement of the receiver and attached elongated member relative to the anchor in first and second directions, and may also buffer forces applied into the spine.
摘要:
A spinal rod system includes a first instrument extending between a proximal portion and a distal portion along a longitudinal axis thereof. The proximal portion defines an inner cavity extending along the longitudinal axis. The first instrument includes a first arm extending along the longitudinal axis. The first arm defines a portion of a vertebral construct cavity disposed in communication with the inner cavity and includes a distal end being configured to engage a bone fastener. Methods of use are disclosed.
摘要:
In one aspect, a bone anchor assembly is provided. The bone anchor assembly includes a bone anchor, a crown member, a saddle, and a sleeve. The bone anchor assembly is configured such that the bone anchor is moveable with respect to the saddle when the sleeve is positioned around the saddle and the bone anchor is locked relative to the saddle by compression of the head portion of the bone anchor between the crown member and a seat of the saddle. In another aspect, a system for orthopedic implantation is provided. The system includes an elongated member, a compression member, and a bone anchor assembly. In another aspect, a method of assembling a bone anchor assembly is provided.
摘要:
A method and apparatus for facilitating online payment transactions between participants in a network-based transaction facility are described. In one embodiment, user interface information is communicated to a first participant via a communications network. The user interface information identifies various payment instruments available for processing online payment transactions in the network-based transaction facility. Further, payment option information is received from the first participant via the communications network. The payment option information indicates the willingness of the first participant to accept a payment from a second participant via one or more of the various payment instruments. This payment option information is passed to the second participant via the communications network. Afterwards, personal billing information is accepted from the second participant via the communications network to facilitate an online payment transaction between the first participant and the second participant. The personal billing information concerns a payment instrument selected by the second participant from the payment instruments specified by the first participant.