Abstract: The invention relates to an apparatus for cooling components in spacecraft, comprising a heat radiator (5) and a heat conductor (3; 3a, 3b). A versatile applicability is achieved in such a way that the heat conductor (3, 3a, 3b) penetrates an outside wall (1) of the spacecraft and is provided in the interior of the spacecraft with several coupling places (8) for components to be cooled (20) and/or for other heat conductors (10).

Abstract: The invention relates to an apparatus for cooling components in spacecraft, comprising a heat radiator (5) and a heat conductor (3; 3a, 3b). A versatile applicability is achieved in such a way that the heat conductor (3, 3a, 3b) penetrates an outside wall (1) of the spacecraft and is provided in the interior of the spacecraft with several coupling places (8) for components to be cooled (20) and/or for other heat conductors (10).

Abstract: The invention relates to an apparatus for cooling components in spacecraft, comprising a heat radiator (5) and a heat conductor (3; 3a, 3b). A versatile applicability is achieved in such a way that the heat conductor (3, 3a, 3b) penetrates an outside wall (1) of the spacecraft and is provided in the interior of the spacecraft with several coupling places (8) for components to be cooled (20) and/or for other heat conductors (10).

Abstract: The invention relates to a connection assembly for conduits (3, 4; 7, 8) which are arranged coaxially inside one another and which accommodate the supply flow and return flow of a cryogenic medium. Said assembly comprises a first and a second coupling half (1, 2) which can be connected to one another in a sealed manner, whereby an inner conduit (4; 8) in each coupling half (1, 2) ends in a first conical sealing surface (9; 10) and an external conduit (3; 7) in each coupling half (1, 2), which encompasses the inner conduit (4; 8), ends in an additional conical sealing surface (11; 12) that is positioned outside the first conical sealing surface (9; 10) in the radial direction. In order to establish an electrical connection simply and reliably, at least one electrical contact (18, 20) is provided within the additional conical sealing surface (11; 12) in each coupling half (1, 2).

Abstract: The invention relates to a cryoinstrument which is provided for carrying out cryosurgical interventions in the area of human and veterinary medicine, especially for treating tumors, and in the area of phytopathology and which is connected to a connecting device of a cryogenic appliance or system. The inventive cryoinstrument is comprised of a housing (1) in which a line is located that is provided for the direct flow (2) and for the return flow (3) of a cryogenic medium, e.g. liquid nitrogen. The housing has at least one closed end piece (4) which forms a working surface (5) with an exterior side (6) for cooling a tissue, and has a temperature sensor (7). In order to be able to constantly maintain the minimal temperature, in particular, between −40° C. and −196° C.

Abstract: The invention relates to a connection assembly for conduits (3, 4; 7, 8) which are arranged coaxially inside one another and which accommodate the supply flow and return flow of a cryogenic medium. Said assembly comprises a first and a second coupling half (1, 2) which can be connected to one another in a sealed manner, whereby an inner conduit (4; 8) in each coupling half (1, 2) ends in a first conical sealing surface (9; 10) and an external conduit (3; 7) in each coupling half (1, 2), which encompasses the inner conduit (4; 8), ends in an additional conical sealing surface (11; 12) that is positioned outside the first conical sealing surface (9; 10) in the radial direction. In order to establish an electrical connection simply and reliably, at least one electrical contact (18, 20) is provided within the additional conical sealing surface (11; 12) in each coupling half (1, 2).

Abstract: The invention relates to a cryogenic system which is provided for performing cryosurgical interventions in the area of human and veterinary medicine, especially for treating tumors. The inventive system is comprised of a cryostat (1) and of a connecting device (8) which is located between coaxial cryogenic lines for the direct flow (9) and return flow (10) of the cryogenic medium and which is provided for connecting a cryoinstrument (17) to a cryo-attachment (13). The electromagnetic valve (11) is located in the immediate proximity of the connecting device (8). A regulating device (18) is provided for controlling the electromagnetic valves (2, 3, 4 and 7) as well as the heating element (12), and regulates the excess pressure of the cryogenic medium in the cryostat (1) to an accuracy of ±0.1×105 Pa. The bottle neck (23) of the cryostat (1) is made of a material exhibiting a low level of thermal conductivity.