摘要:
An expandable tube having a substantially semicircular unexpanded shape is inserted into the disc space after the disc material has been removed therefrom. A plurality of expandable lockable rings are passed over this tube in their unexpanded states and positioned along the anterior edge of the endplates. The tube is then expanded, thereby forcing the rings to expand. The rings hold their final expanded configuration via a one-way locking mechanism. Once sufficient distraction is achieved and the rings locked, the tube is collapsed and removed, thereby leaving the expanded, locked rings behind to support the disc space.
摘要:
Multiple, small, staple-like supports are inserted through a small tube into the disc space then rotated into position on the edge of the vertebral bodies. The tooth-like geometry of the proximal and distal faces of these staples mates with the outer edge of the vertebral body, extending past the front of the endplate anteriorly. The staples have teeth that dig into the endplate on the inside of the rim as well.
摘要:
A distributed data processing system is disclosed. A problem with distributed data processing systems, especially data centres, is the low level of utilisation of those data centres. This is, in part, owing to data centre providers being concerned not to attract financial penalties levied by their customers in response to the quality of service provided to those customers by the data centre falling below service level agreed in service level agreements. Embodiments are disclosed which tackle this problem by having the data centre control the load placed upon it by carrying out an assessment of the likely impact of performing a requested bundle of jobs on jobs which are already running in the data centre. The decision whether to provide the requested bundle of jobs is then made by weighing-up the expected increase in penalties payable to customers against the revenue expected in return for running the requested bundle of jobs.
摘要:
A computer network includes a plurality of components governed by policies from a policy manager. Where conflicts arise between policies, a conflict management policy is inherent in the system and is implemented to detect and resolve such conflicts.
摘要:
A network is configured or made configurable to provide a process exploiting services distributed among nodes of the network by means of a step-by-step search, the search for one service starting at a node providing a previous service.
摘要:
This invention relates to a method of and an apparatus for providing an interface between a client and one or more data storage systems. Existing approaches to the management of multiple, distributed heterogeneous data storage systems are deficient in that they are inflexible to change. To alleviate these deficiencies there is provided a method of providing an interface between a client (307) and one or more data storage systems (309). The method comprises the steps of receiving a request from a client (307), searching, in a rule store populated by modifiable human-readable rules each specifying a handler for use in responding to client requests, for a human readable rule and providing the interface by activating the handler specified in the human readable rule to communicate with the data storage systems.
摘要:
A computer network is managed by policies. This allows selections to be made from a range of control options and optionally to be based on locally available system information. Policy-based management is distributed across the system and is handled locally by management agents allowing control of a sub-network. As a result of a distributed policy-based management system is provided which allows additional flexibility of control.