Abstract:
Methods and devices for providing a stabilized implant at a site of implantation include providing locking members on faces (108,110) of the implant and applying bone cement to the implant faces (103,105). The locking members secure the bone cement so that the bone cement will not be substantially displaced when the implant is inserted at an implantation site.
Abstract:
A joint prosthesis (20) comprises a first member (26) for engaging a first bone portion and a second member (24) for engaging a second bone portion. The first member comprises a first surface (34) with a first curve and the second member comprises a second surface (30) with a second curve. The first member is translatable with respect to the second member and the second curve is positioned within the first curve to bias the first and second curves towards alignment along a first axis (44) passing through the first and second bone portions.
Abstract:
An intervertebral implant (20) comprises a first member (26) for engaging a first vertebral body and a second member (24) for engaging a second vertebral body. The first member has a first surface (34) with a first curve, and the second member has a second surface (30) with a second curve. The first member is translatable with respect to the second member and the second curve is positioned within the first curve to bias the first and second curved surfaces towards central alignment along a longitudinal axis (44) passing through the first and second vertebral bodies.
Abstract:
An apparatus (20) for implanting an intervertebral implant (22) in a void between a pair of vertebral endplates comprises a power source (32), a drive mechanism (38, 26) coupled to the power source, and an implant adapter (28) driven by the drive mechanism. The intervertebral implant is removably coupled to the implant adapter to create a seat in at least one of the vertebral endplates as the intervertebral implant is moved relative to the at least one vertebral endplate.
Abstract:
An intervertebral disc space preparation guide (118) comprises a spacer portion (130) having a first recess (131) and a first machining guide (120) comprising a first bore . The first bore (120) and the first recess (131) are aligned and adapted to receive a first bone removal mechanism (144) .
Abstract:
This invention relates to an implantable medical device to treat a patient. The implantable device can be an orthopedic device such as a spinal implant including, but not restricted to, a disc or nucleus pulposus prosthesis, a spinal rod assembly, or a bone fixation plate. The orthopedic device can be formed to include a metal matrix composite that provides enhanced wear and diagnostic imaging techniques. In other forms, the present invention provides an implantable medical device that includes a porous metal matrix composite that can deliver a therapeutic composition to a patient. In still other forms, the present invention provides an implantable electrical device or lead formed to include a metal matrix composite that provides lower polarization and interfacial impedance and allows enhanced sensing of the physiological signals.
Abstract:
A roadway luminaire is provided which includes a mast mount docking station (6) securable to an end of a pole mast. The mast mount docking station includes a power plug electrically coupled to the power conductors. The luminaire includes a corresponding power plug (36) which is electrically and mechanically coupled to the mast mount docking station via a twist-lock feature including mating keys and keyways (43) in the docking station and luminaire includes several plug-in components such as a plug-in photoelectric cell, a plug-in starter and a capacitor press-fit into a molded cavity in the luminaire. The power plug of the luminaire is adaptable to be used with all international voltages. The twist-lock feature provides for a fool-proof mechanical and electrical connection to ensure that the correctly rated luminaire is connected to the supply voltage.
Abstract:
A vertebral construct includes a first fastening element having a first portion and a second portion configured for engagement with tissue. A rod defines an elongated cavity configured to facilitate dynamic translation of the first portion therein relative to the rod. A second fastening element has a first portion fixedly connected to the rod. Methods of use are disclosed.
Abstract:
A spinal implant clamps to the spinous processes and provides an osteointegration material between the spinous processes so that there may be osteointegration between the spinous processes and a portion of the implant located in the interspinous space. The implant includes first and second plates, a post that extends between the plates and into at least one of the plates, a locking mechanism for locking the relative positions of the plates, and an osteointegration sleeve. The sleeve is disposed between the first and second plates and has an inner surface defining a longitudinal through-passage that is disposed about an outer surface of the post. The sleeve includes osteointegration material and is distinct from the post. The osteointegration material of the sleeve may be, for example, allograft bone or a bone growth material such as bone morphogenetic protein. Related methods are also described.
Abstract:
A spinal implant (10) including an interbody device (12) and an anchor device (14). The interbody device (12) is sized and shaped to be positioned within an intervertebral disc space between adjacent upper and lower vertebrae. The anchor device is at least partially formed of a resorbable material and is coupled to the interbody device and anchored to the upper and lower vertebrae. The anchor device is configured to temporarily secure the interbody device to the upper and lower vertebrae for a period of time sufficient to facilitate bone growth onto and/or through the interbody device and is thereafter resorbed into the body.