Abstract: In a connecting module for the transmission of electrical energy and/or information signals between a patient support means of an operating table and a supporting apparatus releasably connectable with the patient support means, including a support apparatus module portion (42) and a patient support means module portion (44), one of the module portions (42,44) is provided with a first group of transmission elements (88,98) for the transmission of electrical energy and/or information signals and a second and a third group of complementary transmission elements (60,72) are provided in the other module portion (44,42) and are so arranged that upon connection of the patient support means with the support apparatus in a first position of the patient support means relative to the support apparatus the transmission elements (88,98) of the first group cooperate with the transmission elements (60,72) of the second group and so that in a second position of the patient support means relative to the support apparatus, whi

Abstract: At least two connecting elements are fastened to the patient support and are insertable into pin receivers of the column and carriage. Each connecting element has two latching elements each movable between a latching position and an unlatching position, and during relative movement between the transport carriage and the support column resulting in the transfer of the patient support from the column to the transport carriage, or the reverse, each connecting element becomes received at the same time in a column pin receiver and a carriage pin receiver. Each receiver has a detent recess for receiving one of the latching elements of a received connecting element in its latching position and a control surface associated with the other latch element of the received connecting element which control surface upon the reception of the connecting element transfers this latching element to its unlatched position.

Abstract: In a switch arrangement for switching electrical functions with at least two switches (A;B) having electrical contact elements (8;9;10;11), at least one of the switches (A;B) is made as a foil switch having a flexible base foil (4;7) carrying one contact element (9;11) and a switch element (2;5), particularly a switch foil, elastically deflectable in the direction toward the base foil and carrying the opposite contact element (8;10). The other switch (B) is so arranged behind the foil switch (A) in the keying direction that it is operable by an operating pressure on the foil switch (A) which exceeds the required operating pressure for the foil switch (A).

Abstract: In a remote control arrangement for a medical appliance, a transmitter and a receiver are provided. The transmitter has a frequency generator controllable by means of code words which generate frequency signals and a group frequency signal alternately. In order to improve the freedom from interference and ease of changing the frequency of the group frequency signal, the frequency generator is constructed to generate a plurality of additional group frequency signals as a function of the feeding one at a time of a corresponding number of different group code words.

Abstract: In a method of remotely controlling a medical appliance frequency signal impulses and group frequency impulses are transmitted alternately from a transmitter to a receiver.In order to improve freedom from interference, the group frequency impulses are amplified in the transmitter and/or receiver by at least 3 dB less than the frequency signal impulses corresponding to command signals.For the same purpose, in a remote control arrangement for performing the method, the amplifier provided in the receiver exhibits at the group frequency a gain factor lower by at least 3 dB than at the frequencies of the frequency signal impulses.