Abstract: A patient support device for a radiation therapy treatment system and a method of manufacturing the same. The device includes a support having an upper surface and a lower surface and a fixture hole configuration that receives a patient fixation device. The fixture hole configuration includes at least one recess and reinforcing material positioned inside at least a portion of the at least one recess. The device may also include a lower support having an upper surface that includes at least one channel. Flat flex cable used to operate the patient support device is positioned within the at least one channel.

Abstract: A patient support device for a radiation therapy treatment system and a method of manufacturing the same. The device includes a support having an upper surface and a lower surface and a fixture hole configuration that receives a patient fixation device. The fixture hole configuration includes at least one recess and reinforcing material positioned inside at least a portion of the at least one recess. The device may also include a lower support having an upper surface that includes at least one channel. Flat flex cable used to operate the patient support device is positioned within the at least one channel.

Abstract: A patient support device for use in a medical facility. The patient support device includes a base and a table assembly coupled to the base. The table assembly includes a lower support and an upper support coupled thereto and movable with respect to the lower support. At least one of the upper support and the lower support includes a bearing layer thereon capable of improving the performance of the patient support device when the upper support moves with respect to the lower support.

Abstract: The invention involves a variable valve timing actuator that allows the opening and closing of engine valves to be variably and individually controlled without using a camshaft. The invention utilizes energy regeneration so energy delivered to a valve while accelerating it is recovered while it is decelerating. Regeneration is preferably provided by potential energy storage devices such as springs. Energy losses are made up by adding energy to the actuator while the valve is stationary (or nearly so) in an open or closed state. This is done by (1) moving the spring seats in relation to the valve, thereby “charging” the springs in relation to the valve, and/or by (2) moving the valve with respect to the spring seats to “charge” the springs with respect to the valve. This energy addition is extremely efficient because it is performed after the potential energy within the springs has already been expended and the valve is sitting stationary in its open and closed positions.