摘要:
A spinal implant insertion device is hereby provided. The device includes an insertion blade assembly having a set of opposed insertion blades wherein the assembly is adapted to slide from a retracted position to an extended position relative to an elongate shaft. In the extended position, a blades are adapted to be positioned above and below a portion of a spinal implant so as to shield the portion of the implant during delivery to an intervertebral space. The insertion blades assembly can also be modular so as to utilize a wide range of distinct insertion blades. Additionally, a method for delivering a spinal implant to an intervertebral space is herein provided. Like above, the method utilizes an insertion blade assembly adapted to slide along a shaft of a spinal implant insertion device.
摘要:
Methods and devices for locking a fastener in a thru-bore are provided herein. In one exemplary embodiment, a spinal anchor is provided that includes a bone engaging fastener, an anti-backout mechanism, and a locking mechanism. The anti-backout mechanism can be movable between a retracted position in which it is disposed within the fastener and a deployed position in which is extends from the bone engaging fastener. The locking mechanism can be matable to the bone engaging fastener and can be configured to move the anti-backout mechanism from the retracted position to the deployed position. In the deployed position, the anti-backout mechanism can prevent the bone engaging fastener from backing out of a thru-bore in a spinal plate.
摘要:
Compositions and methods for making biodegradable plastic products are provided. The compositions include a destabilizing agent that makes the finished plastic biodegradable. The compositions also can include an oil-based carrier, such as cottonseed oil, that allows the biodegrading agent to be metered into a continuous plastic manufacturing process. The compositions further can include an additive that allows the biodegrading additive to combine with the carrier; an optical brightener to improve the appearance of the finished plastic product, and to indicate the presence of the composition in the finished product; and a pigment, so that the composition can act as a liquid coloring agent.
摘要:
An intervertebral disc prosthesis comprises a first plate including a socket and a second plate comprising a recess. A core is sandwiched between the socket and the recess. The core includes a domed surface and a plug portion. The first plate is configured to rotate upon the domed surface of the core. The second plate is substantially fixed to the core, with the plug portion engaging the recess. The core may be press-fit into the second plate during assembly of the intervertebral disc prosthesis. The first plate and second plate both include tabs that define notches, wherein the notches are configured to engage prongs of a disc insertion tool. Teeth provided on the first plate and the second plate assist in fixing the first plate and the second plate to the vertebral bodies.
摘要:
An assembly for injecting bone cement into a vertebral body, comprising a bone cement dispenser, an introducer needle, a cement injection needle attached to the cement dispenser and slidably received in the introducer needle, and a Touhy-Borst adapter that locks and unlocks the cement injection needle from the introducer needle.
摘要:
Devices, systems and methods for delivering a curable, stabilizing material into a central region of a bone structure. Precise placement of the curable substance into a central region of a bone structure through a unipedicular approach. One primary advantage is its ability to create a central cavity in a vertebral body (or to centrally deliver bone cement) through a unipedicular approach. A curved needle having increased rigidity in its flexible end when the end is disposed in its straight position. This increased rigidity is due to a novel tensioning mechanism and to a segmented tube design (as opposed to the conventional longitudinally-slotted tube design).
摘要:
Methods and devices for locking a fastener in a thru-bore are provided herein. In one exemplary embodiment, a spinal anchor is provided that includes a bone engaging fastener, an anti-backout mechanism, and a locking mechanism. The anti-backout mechanism can be movable between a retracted position in which it is disposed within the fastener and a deployed position in which is extends from the bone engaging fastener. The locking mechanism can be matable to the bone engaging fastener and can be configured to move the anti-backout mechanism from the retracted position to the deployed position. In the deployed position, the anti-backout mechanism can prevent the bone engaging fastener from backing out of a thru-bore in a spinal plate.
摘要:
A portable scale for weighing containers, and includes a weighing tray that may be moved from a weighing position to a non-weighing position by a drive mechanism. When in the non-weighing position, the weighing tray is low to the ground, allowing for easy loading and unloading. When in the weighing position, force is transmitted to one or more load cells located between the weighing tray and a scale assembly, which allows for an accurate measurement of the container and/or its contents.
摘要:
A length-adjustable vertebral body balloon catheter in which the location of the balloon can now be manipulated once an access cannula has been placed in the vertebral body. The device includes a collet such as a Touhy-Borst valve that allows the clinician
摘要:
A method for weight blending of granular materials comprises at a remote site generating a command for desired operation of granular material weight blending apparatus; encoding said command into transportable time-stable machine readable tangible storage media; transporting said media to a bar code reader operatively connected to said granular material weight blending apparatus; scanning the tangible media having the command encoded thereon to read the command; and providing the read command as input to a in microprocessor operatively connected to said granular material weight blending apparatus for regulating operation of the same.