Abstract: A retractor system and related methods for use in spinal surgery procedures, including but not limited to fusing or repairing damaged or deteriorated intervertebral discs or vertebral bodies in the lower lumbar levels. The retractor system includes a plurality of blade assemblies coupled to a handle assembly, wherein each of the blade assemblies may be independently adjusted (e.g. length blade and/or blade angulation and/or blade rotation relative to the handle assembly) to provide unprecedented customization of an operative corridor extending to the surgical target site of the patient such that any number of spinal surgery procedures may be undertaken by a surgeon, including but not limited to spinal fusion procedures at the L5-S1 disc space.

Abstract: A real time monitoring and control system (101) interfaces with service supply entities such as SMSC, MSC, GGSN, SGSN, and IP probe entities. A data manager (104) maintains account resource data associating each of a plurality of accounts with one or more services, in which at least one account is associated with a plurality of services. Each account may have multiple pots, each associated with a type of resource such as bytes, packets, or time. A session manager (102) monitors concurrent service usage in real time and generates messages or control instructions for account modification and for account resource re-allocation across services in real time according to service usage. The session manager (102) dynamically re-distributes available account resources to sessions as the sessions occur, including resource re-allocation during a plurality of sessions including scalar and event-based sessions.