摘要:
There is therefore provided a method of estimating the location of a mobile device, the mobile device being configured for use in a cellular mobile communications network comprising a plurality of base stations, the method comprising generating a database of locations visited by the mobile device by obtaining measurements of the position of the mobile device over time using a satellite-based positioning system; obtaining the identity of the base station serving the mobile device at the time of each measurement of the position of the mobile device; and analyzing the measurements to identify locations visited by the mobile device, each location being associated with a particular base station, such that the mobile device is attached to said base station when at said location; and during subsequent use of the mobile device, in the event that it is not possible to use the satellite-based positioning system to measure the position of the mobile device, estimating the location of the mobile device as one or more identified locations that are associated with the base station to which the mobile device is currently attached. Corresponding apparatus and computer program products are also provided.
摘要:
Screw back out prevention devices to inhibit screws from reverse threading or backing out are provided. The devices include first bonding materials on either a bushing in a bore of a plate or directly on the bore and second bonding materials on the screw head. The bonding materials for a bond that inhibits back out or reverse threading of the screw.
摘要:
Spinous process implants and associated methods are shown and described. In one aspect, the implant limits the maximum spacing between the spinous processes. In another aspect, a spacer has at least one transverse opening to facilitate tissue in-growth. In another aspect, an implant includes a spacer and separate extensions engageable with the spacer. The spacer is provided in a variety of lengths and superior to inferior surface spacings. In another aspect, an implant includes a spacer and a cerclage element offset from the midline of the spacer in use so that the spacer defines a fulcrum and the cerclage element is operative to impart a moment to the vertebrae about the spacer. In another aspect, instrumentation for inserting the implant is provided. In other aspects, methods for treating spine disease are provided.
摘要:
There is disclosed a retractor system to facilitate surgical access to an intervertebral disc between an inferior vertebral body and a superior vertebral body. In an embodiment, the retractor system includes an elongate member having an anchor to attach to a pedicle of an inferior vertebral body with respect to an intervertebral disc. A retractor body has a collar to attach to the elongate member, slides coupled to the retractor body, and a pair of blades mounted to the slides. The blades have a proximal end and a distal end, a distance between the proximal end and the distal end of each one of the blades configured for displacing tissue for access to an intervertebral disc. An attachment portion is adjacent the proximal end of each one of the blades for attaching one of the slides thereto. Geometry of the blade end conforms to anatomy surrounding the pedicle.
摘要:
A bone plate assembly includes a plate, at least one bushing, and at least one bone screw. The bushing is positioned within a through hole of the plate. The bushing and screw are configured to engage each other to inhibit the screw from backing out. The screw includes a visual indicator surface that is visible to the operator during insertion of the screw through the bushing and plate. The bushing is configured to cover at least a portion of the visual indicator surface to show when the bushing and screw are properly engaged to inhibit backout of the screw.
摘要:
An intervertebral disc device is provided to support or repair one or both of the disc annulus and the disc nucleus. The intervertebral disc device includes an annulus support and an elongated member to support the disc nucleus. The disc annulus support has an elongated wire and an annulus closure. The disc nucleus has an elongated member that is expandable. Any of the devices can be loaded with biologics. Moreover, any of the devices may include a scarring factor to promote fibrous growth.
摘要:
The present invention provides spinous process implant and associated methods. In one aspect of the invention the implant limits the maximum spacing between the spinous processes. In another aspect of the invention, a spacer has at least one transverse opening to facilitate tissue in-growth. In another aspect of the invention, an implant includes a spacer and separate extensions engageable with the spacer. In another aspect of the invention, instrumentation for inserting the implant is provided. In other aspects of the invention, methods for treating spine disease are provided.
摘要:
A bone plate assembly includes a plate, at least one bone screw, and at least one cap member. The screw extends into a through hole of the plate and a head of the screw seats in the through hole. The plate includes an undercut slot adjacent to the through hole. The cap includes at least one tab member that extends radially outward. The cap is mounted in the through hole with the tab member positioned in the undercut slot to inhibit the screw from backing out of the plate. In some arrangements, the tab member is rotatable within the undercut slot from an unlocked position to a locked position.
摘要:
The present invention provides an implant to be implanted between a superior vertebra and an inferior vertebra. The implant comprises a main body having a superior surface and an inferior surface with at least one linear surface protrusion residing on at least one of the superior surface or the inferior surface. The protrusion having a substantially flat bone engaging surface and a generally trapezoidal cross-section.
摘要:
Data processing delay is reduced during data processing, using compiler optimization. Blocks of code are scanned in an order from blocks recurring most often to blocks recurring least often. In an order from blocks recurring most often to block recurring least often, shifts are inserted before arithmetic references, such that a previous use of the arithmetic reference does not require a shift, shifts are inserted after each memory use such that the next use of the memory does not require a shift, and shifts are inserted after each arithmetic reference such that the next use of the arithmetic reference requires no shift. In addition, if there is a mismatch between the last shifted amount of any one block and the required initial shifted amount in any of its successors, shifts are inserted to make up for the mismatch.