Abstract: A modular system for fixation of a spinous process includes at least one pair of blocks shaped so as to engage a particular segment of the spinous process and arranged on opposing sides of the spinous process. Each block has a surface facing the portion of the spinous process to be engaged, the surface having an array of sharp spikes to penetrate the spinous process when so engaged. Two rods arranged parallel to the spinous process are provided to connect the at least one pair of blocks and therefore stabilize multiple segments of the spinous process. Each block includes an aperture within a central portion of the block and shaped so as to slidably receive one of the rods. Set screws are provided so as to securely position the block along the length of the rod.

Abstract: A device and system for removing cerebrospinal fluid (CSF) from a CSF space within a patient's body includes a housing adapted for implantation into a subcutaneous body space remote from the CSF space. A fluid pump is mounted inside the device housing. The pump has a pump actuator, a fluid inlet extending through the housing wall and a fluid outlet extending through the housing wall. A battery-powered electric motor is mounted inside the housing and is operatively coupled to the pump actuator. Device control circuitry controls operation of the electric motor. The device control circuitry includes a processor responsive to CSF space pressure signals, outflow pressure signals, and CSF flow rate signals to calculate CSF space pressures, CSF outflow pressures, and CSF removal volumes. A telemetry unit includes a transmitter to wirelessly transmit pump data and a receiver to receive external operational commands.

Abstract: A modular system for fixation of a spinous process includes at least one pair of blocks shaped so as to engage a particular segment of the spinous process and arranged on opposing sides of the spinous process. Each block has a surface facing the portion of the spinous process to be engaged, the surface having an array of sharp spikes to penetrate the spinous process when so engaged. Two rods arranged parallel to the spinous process are provided to connect the at least one pair of blocks and therefore stabilize multiple segments of the spinous process. Each block includes an aperture within a central portion of the block and shaped so as to slidably receive one of the rods. Set screws are provided so as to securely position the block along the length of the rod.