Patent ID: 8810357

Claim:
A medical supply unit comprising: a housing with connectors for connecting medical devices, the housing coupled to a handle for manipulating the housing, and the housing coupled to a pivot arm that is connected to a hinge having a brake or connected to a lifting motor, wherein the brake or the lifting motor is operable to receive instructions from a control element disposed within the handle, the instructions allowing the pivot arm that is connected to the hinge or the lifting motor to be locked in a fixed position, moved horizontally, or moved vertically, such that the housing coupled to the pivot arm can be locked in the fixed position, moved horizontally, or moved vertically; and a bus system coupled between the brake or the lifting motor and the control element, the bus system configured to transmit the instructions of the control element to the brake or the lifting motor, the bus system comprising: a transmission system configured to transmit signals as commands; a transmitter comprising a transmitter address and configured to transmit at least one command associated with the instructions via the transmission system; and a receiver comprising: a first receiving unit having a first output and a second receiving unit having a second output, wherein the first and second receiving units comprise different softwares, and wherein the first and second outputs are coupled to each other in series to form a receiver output that executes a switching instruction only when the first and second receiving units output respective switching signals at the first and second outputs, and a receiver address, wherein the receiver is configured to receive the at least one command of the transmitter and to transmit the at least one command associated with the receiver to the switching instruction at the receiver output.