A light source module including a light guide plate, at least one light emitting device, a light-controlling pattern element, and an absorbing pattern element is provided. Output image information is determined at the level of an application output call, an operating system output call, a device driver, a video controller level or at any other output level. Each needle electrode has a lumen that may be placed in communication with a port at a proximal end of the probe assembly, and is configured to deliver an occlusive element to a site. The second drive shaft is positioned outside of the channel of the air intake. 2, and the total cross-sectional area is 7 to 13 percent void.