Abstract: A surgical light including a light housing having at least one light source therein and a handle assembly extending from the light housing, with the handle assembly including a knob and a cover. The handle assembly is rotatably connected to the light housing. The cover covers the knob. Engaging the cover in a first mode and rotating the knob alters a first characteristic of light emitted from the at least one light source. Engaging the cover in a second mode and rotating the knob alters a second characteristic of light emitted from the at least one light source.

Abstract: A suspension arm assembly includes at least three horizontally aligned members relatively rotatable about each other, each adjacent pair of the at least three horizontally aligned members being connected to each other by a joint; a conduit pathway for positioning at least one conduit such that the at least one conduit extends along the at least three horizontally aligned members, outward of a load bearing periphery of the at least three horizontally aligned members; a brake system comprising a brake at each joint for selectively preventing movement of respective adjacent ones of the at least three horizontally aligned members about the joint; and at least one shell arranged about the at least three horizontally aligned members and the conduit pathway.

Abstract: A suspension arm assembly including at least three horizontally aligned members relatively rotatable about each other. Each adjacent pair of members are connected to each other by a joint. At least one conduit extends along the at least three horizontally aligned members, with the at least one conduit being routed horizontally along the horizontally aligned members and not being located within a periphery of the at least three horizontally aligned members.

Abstract: SA surgical room power system including at least one source of power wired to a power source for a surgical room, the at least one source of power being wired to the surgical room; at least one power receiver; and a surgical power consumer wired to the at least one power receiver, the surgical power consumer being configured to assist a surgeon during a surgical procedure on a patient. The at least one source of power wirelessly transfers power to the at least one power receiver for powering the surgical power consumer.

Abstract: A method of locating light includes providing a housing have a plurality of first light sources therein, the housing further including a plurality of second light sources, the housing further having a handle for changing a position of the housing; illuminating an object with light emitting from the housing from the first light sources; grasping the handle of the housing; turning on the second light sources; illuminating the object with light from the second light sources, with the light from each of the second light sources extending along a line; adjusting a position of the housing to have the second light sources form a point at an area of interest on the object; releasing the handle; and turning off the second light sources.

Abstract: Adjustment of a surgical light is provided to optimize viewing an object. First, a distance between the surgical light and the object being viewed can be measured and the light output from the surgical light can be adjusted depending on the distance. Second, the surgical light can be moved to optimize the direction of light emitted from the surgical light according to the position of light from visible locating light sources. Third, the light emitted from a pair of light assemblies can be adjusted to ensure that the intensity of the light at an area of overlap of the light assemblies stays below a predetermined level to help prevent eye fatigue and dehydration and excessive radiation of a wound at the area of overlap.

Abstract: A surgical room power system including at least one source of power wired to a power source for a surgical room, the at least one source of power being wired to the surgical room; at least one power receiver; and a surgical power consumer wired to the at least one power receiver, the surgical power consumer being configured to assist a surgeon during a surgical procedure on a patient. The at least one source of power wirelessly transfers power to the at least one power receiver for powering the surgical power consumer.

Abstract: A surgical light including a light housing having at least one light source therein and a handle assembly extending from the light housing, with the handle assembly including a knob and a cover. The handle assembly is rotatably connected to the light housing. The cover covers the knob. Engaging the cover in a first mode and rotating the knob alters a first characteristic of light emitted from the at least one light source. Engaging the cover in a second mode and rotating the knob alters a second characteristic of light emitted from the at least one light source.

Abstract: A surgical light including a light housing having at least one light source therein and a handle assembly extending from the light housing, with the handle assembly including a knob and a cover. The handle assembly is rotatably connected to the light housing. The cover covers the knob. Engaging the cover in a first mode and rotating the knob alters a first characteristic of light emitted from the at least one light source. Engaging the cover in a second mode and rotating the knob alters a second characteristic of light emitted from the at least one light source.

Abstract: A surgical room power system including at least one source of power wired to a power source for a surgical room, the at least one source of power being wired to the surgical room; at least one power receiver; and a surgical power consumer wired to the at least one power receiver, the surgical power consumer being configured to assist a surgeon during a surgical procedure on a patient. The at least one source of power wirelessly transfers power to the at least one power receiver for powering the surgical power consumer.

Abstract: A suspension arm assembly including at least three horizontally aligned members relatively rotatable about each other. Each adjacent pair of members are connected to each other by a joint. At least one conduit extends along the at least three horizontally aligned members, with the at least one conduit being routed horizontally along the horizontally aligned members and not being located within a periphery of the at least three horizontally aligned members.

Abstract: Adjustment of a surgical light is provided to optimize viewing an object. First, a distance between the surgical light and the object being viewed can be measured and the light output from the surgical light can be adjusted depending on the distance. Second, the surgical light can be moved to optimize the direction of light emitted from the surgical light according to the position of light from visible locating light sources. Third, the light emitted from a pair of light assemblies can be adjusted to ensure that the intensity of the light at an area of overlap of the light assemblies stays below a predetermined level to help prevent eye fatigue and dehydration and excessive radiation of a wound at the area of overlap.

Abstract: A surgical light including a substrate having a substantially planar top surface with a plurality of light sources on the substantially planar top surface, with each of the light sources emitting light in a cone when activated. The cone has a first spread angle. An optical system having a first area such that the light emitted from the light sources has a second spread angle after passing through the first area and a second area focusing or redirecting the light passing through the first area at a location a desired distance from the optical system. The second spread angle is less than the first spread angle.

Abstract: A surgical light including a light housing having at least one light source therein and a handle assembly extending from the light housing, with the handle assembly including a knob and a cover. The handle assembly is rotatably connected to the light housing. The cover covers the knob. Engaging the cover in a first mode and rotating the knob alters a first characteristic of light emitted from the at least one light source. Engaging the cover in a second mode and rotating the knob alters a second characteristic of light emitted from the at least one light source.

Abstract: A surgical light including a substrate having a substantially planar top surface with a plurality of light sources on the substantially planar top surface, with each of the light sources emitting light in a cone when activated. The cone has a first spread angle. An optical system having a first area such that the light emitted from the light sources has a second spread angle after passing through the first area and a second area focusing or redirecting the light passing through the first area at a location a desired distance from the optical system. The second spread angle is less than the first spread angle.

Abstract: A train communication and control system is described having the cars of the train connected by a two-wire train line running continuously from car to car. Each car has a transmitting circuit and a receiving circuit connected across the line. Any car may be selected to be a master unit. The selection of one car as a master unit disconnects the power sources of all other cars from the train line, leaving the master unit power source as the sole power source for the line. The master unit or any other car unit communicates with each other car by causing a high voltage ("mark" state or logic one) or a low voltage ("space" state or logic zero) to be on the train line. Each non-master car can receive a communication from a transmitting circuit, or can transmit to another car by applying a low impedance across the train line to change from a "mark" state to a "space" state. The power source consists of a voltage regulator with precision constant current limit.

Abstract: A train communication and control system is described having the cars of the train connected by a two-wire train line running continuously from car to car. Any car may be selected to be a master unit. The selection of one car as a master unit disconnects the power sources of all other cars from the train line, leaving the master unit power source as the sole power source for the line. The master unit communicates with each other car by causing a high voltage ("mark" state or logic one) or a low voltage ("space" state or logic zero) to be on the train line. Each non-master car can receive a communication from the master unit, or can transmit to another car by applying a low impendance across the train line to change from a "mark" state to a "space" state. The power source consists of a voltage regulator with precision constant current limit.