Abstract: The present invention provides a braking device for an operating table base, comprising at least two supporting legs, each supporting leg having a pivoting end and a supporting end distanced from the pivoting end. The operating table base supports an operation bed whose projected area covers the operating table base. The operating table base has a first pivoting portion corresponding to each supporting leg, and each supporting leg has a second pivoting portion at the pivoting end to correspond to the first pivoting portion of the operating table base. The first pivoting portion pivotally connects to the second pivoting portion, so that each supporting leg rotates with respect to the operating table base. The supporting ends of the supporting legs extend a supporting area of the operating table base.

Abstract: A surgical lighting illumination control device includes a suspension system; light heads mounted on the suspension system and each including a housing, light sources mounted in the housing, an unsterilizable grip mounted on the housing for hand holding and moving the light heads, and detection pairs mounted to the unsterilizable grip for receiving an infrared signal that is transmitted therefrom and reflected by an external object for control and adjustment of the illumination, each detection pair including an infrared transmitter and an infrared receiver; a compensation control mechanism connected to the detection pairs and including a control operation unit and environment temperature compensation units connected to the control operation unit; and a sterilizable grip mountable to the unsterilizable grip and including a guide channel formed therein to correspond, in position, to each of the detection pairs to allow the infrared signal to pass therethrough.

Abstract: The present invention provides an LED driver circuit, comprising a voltage converter electrically connected to a power supply and an LED string, wherein the voltage converter provides a fixed voltage to the LED string; and a current-based light-adjusting unit electrically connected to the voltage converter, wherein the current-based light-adjusting unit controls the amplitude of the current flowing through the LED string, in an analog manner and based on a duty cycle of a pulse width modulation signal.

Abstract: An automatic light intensity compensating device of a surgical light includes a suspension or support system and one or multiple light heads carried on the suspension or support system. Each of the light head includes a housing, one or multiple grips mounted to the housing for hand holding and moving the light head to a desired position, one or multiple light sources mounted in the housing for illumination, a focus adjustment mechanism for adjusting the focal length of illumination, a focusing detection mechanism for detecting a position of the focus adjustment mechanism within a variation range, and an automatic illuminance compensation device, which automatically increases or decreases luminance of the light source according to the position of the focus adjustment mechanism.

Abstract: Provided is a surgical light with luminous intensity fine adjustment (LIFA) function, which includes a suspension or support system; one or more light heads carried by the suspension or support system; one or more light sources mounted in the light heads for being operable to supply lighting; one or more driving circuits connected to the light sources for being operable to drive the light sources; one or more operation interfaces connected to the driving circuits to allow for adjustment of the luminous intensities of the light sources between a topmost limit value of luminous intensity and a bottommost limit value of luminous intensity; one or more maximum LIFA activation/deactivation manners allowing the operation interfaces or the driving circuits to enter/exit the maximum/minimum LIFA mode for adjusting and storing the topmost/bottommost limit value of luminous intensity.

Abstract: A energy-saving device of surgical light includes a suspension or support system; a light head carried on the suspension or support system and includes a housing, a grip mounted to the housing for hand holding and moving the light head, multiple light clusters mounted in the housing and each including at least one light source, and multiple detection pairs mounted in the housing and each including an emitter and a receiver, in which the emitter transmits a signal that is reflected by an external object to the receiver to detect the external object at a specific site and a specific distance from the light head; a light source driver operable to drive the light clusters according to the detection result of the detection pairs; and an operation interface connected to the light source driver and configured for energy saving modes of fixed light intensity and compensation light intensity.

Abstract: The present invention relates to a bidirectional output mixed hydraulic power system, which includes a hydraulic fluid that stores and contains therein a fluid tank; at least one electrical hydraulic pump connected to the fluid tank to draw in, pressurize, and output the hydraulic fluid; at least one mechanical hydraulic pump connected to the fluid tank to draw in, pressurize, and output the hydraulic fluid; at least two sequence check valves each connected to the electrical hydraulic pump and the mechanical hydraulic pump, each of the sequence check valves being set normally open in a first direction and preventing fluid returning in a second direction; and a dual pressure valve that is connected to the fluid tank and each of the sequence check valves for switching output direction of the hydraulic fluid.

Abstract: A bidirectional hydraulic system for operating table is disclosed, which has a switch valve connecting a bidirectional hydraulic pumping device with movable units of an operating table. The switch valve is driven by a motor, and has a valve block defining at least three outbound valve positions on the valve block's top surface, which is parallel to the inside bottom of the base, which the valve block is attached to, and thereof for controlling oil inlet and oil outlet. The switch valve switches among the outbound valve positions for respectively forming oil passages between the bidirectional hydraulic pumping device and hydraulic cylinders of the movable units.

Abstract: The LED illuminant module for medical luminaires contains a circuit board capable of heat dissipation, an LED die package, a beam splitter, and a reflector. The LED die package is attached to the circuit board and is covered by the beam splitter, which in turn is pressed by and positioned along with the reflector. Central beams from the LED die package are collimated by the beam splitter to project forward. The side light beams are refracted by the beam splitter, intercepted by the reflector, and directed to a target coverage area along with the central light beams. The illuminant module is able to achieve low energy consumption and ease of manufacturing simultaneously.

Abstract: An operating table includes a base, a support post standing on the base, and a bed. The bed has a head section, a back section, a hip section and a foot section. The back section and the foot section respectively connect with ends of the hip section through pivot joints and are pivotable relative to the hip section upward and downward. The foot section has a rear section and a front section connecting with each other, and is pivotable either upward to an angle of less than 135 degree with respect to the hip section. The rear section is detachable separately, and an angle of the front section with respect to the hip section is adjustable via a pivot joint. The foot section can be shortened to support downward weight of the patient reliably. Moreover, a surgeon can adjust angles between the patient's legs and hip easily during the operation.

Abstract: A brake mechanism is provided on one of four corners of a rectangular base of an operating table. Each brake mechanism has a cam fixed by a rotating shaft, an a hydraulic cylinder and a braking post. When braking, the hydraulic cylinder pushes the cam to rotate, and the cam abuts the braking post to press against the floor. Wheels on the base of the operating table depart upward a distance from the floor for braking. Detecting sheets are provided on the rotating shafts of two brake mechanisms which stand on the same sides. The detecting sheets match detectors to control action of the hydraulic cylinders.