초록 ▼

A contactless temperature-measuring device especially for a respiration humidifier with a flow channel for breathing gas, which is improved in respect to handling and reliability of measurement. The device includes: a hollow body (1), which is closed towards the flow channel (2, 6), extends into the

A contactless temperature-measuring device especially for a respiration humidifier with a flow channel for breathing gas, which is improved in respect to handling and reliability of measurement. The device includes: a hollow body (1), which is closed towards the flow channel (2, 6), extends into the flow channel (2, 6) for assuming the temperature in the flow channel (2, 6); and an infrared detector (3, 7) is directed toward the inner surface of the hollow body (1) extending into the flow channel (2, 6) for the contactless detection of the temperature of the hollow body (1).

대표청구항 ▼

1. A temperature-measuring device for a respiration humidifier with at least one flow channel for a breathing gas, the device comprising: a hollow body having a closed end surface, said hollow body extending into the at least one flow channel for assuming a temperature in the at least one flow chann

1. A temperature-measuring device for a respiration humidifier with at least one flow channel for a breathing gas, the device comprising: a hollow body having a closed end surface, said hollow body extending into the at least one flow channel for assuming a temperature in the at least one flow channel, said hollow body having an inner surface, said hollow body being located on a first flow channel leading out of a mixing chamber of the respiration humidifier; andan infrared detector facing in a direction of said inner surface of said hollow body for the contactless detection of the temperature of said hollow body, said infrared detector being arranged adjacent to the first flow channel. 2. A temperature-measuring device in accordance with claim 1, wherein said hollow body is substantially cylindrical or is in a form of a cone or a truncated cone having a base arranged in the flow channel. 3. A temperature-measuring device in accordance with claim 1, wherein said hollow body has an emission coefficient of about 1.0 for heat radiation. 4. A temperature-measuring device in accordance with claim 1, wherein another said hollow body is located on a second flow channel leading into the mixing chamber of the respiration humidifier, another said infrared detector being arranged adjacent to said second flow channel. 5. A temperature-measuring device in accordance with claim 1, wherein said infrared detector comprises a plurality of infrared measuring elements in the form of a thermopile. 6. A temperature-measuring device in accordance with claim 1, wherein said infrared detector comprises a band pass filter, said band pass filter filtering external radiation from the environment such that the external radiation from the environment at the site of measurement is minimized in said infrared detector. 7. A temperature-measuring device in accordance with claim 1, wherein said infrared detector comprises an optical component, said optical component focusing an angle of vision of said infrared detector to said hollow body. 8. A temperature-measuring device in accordance with claim 1, wherein said hollow body and the at least one flow channel form an assembly unit. 9. A temperature-measuring device in accordance with claim 1, wherein the respiration humidifier is connected to a respirator or anesthesia apparatus. 10. A temperature-measuring device in accordance with claim 1, wherein the at least one flow channel comprises a Y-piece structure. 11. A temperature-measuring device in accordance with claim 1, wherein the at least one flow channel comprises a flexible tube composed of a plastic ranging from opal to transparent. 12. A temperature-measuring device in accordance with claim 4, further comprising: a control means for controlling heat output of the respiration humidifier based on temperatures detected by said infrared detectors. 13. A temperature-measuring device, comprising: a respiration humidifier with one or more flow channels for receiving a breathing gas;a hollow body having a hollow body closed end surface, said hollow body extending into said one or more flow channels such that said hollow body has a hollow body temperature equal to a temperature of the breathing gas in said one or more flow channels; andan infrared detector disposed opposite said hollow body such that said infrared detector detects said hollow body temperature of said hollow body without contacting said hollow body. 14. A temperature-measuring device in accordance with claim 13, wherein said hollow body has an inner surface, said infrared detector facing in a direction of said inner surface of said hollow body. 15. A temperature-measuring device in accordance with claim 13, further comprising: another hollow body having another hollow body closed end surface, said another hollow body extending into said one or more flow channels such that said another hollow body has another hollow body temperature equal to another temperature of the breathing gas in said one or more flow channels;another infrared detector disposed opposite said another hollow body such that said another infrared detector detects said another hollow body temperature of said another hollow body without contacting said another hollow body, said one or more flow channels including a first flow channel extending from a mixing chamber of said respiration humidifier and a second flow channel extending into the mixing chamber of said respiration humidifier, said first flow channel receiving humidified breathing gas, said second flow channel delivering non-humidified breathing gas to the mixing chamber of said respiration humidifier, said hollow body being located on said first flow channel, said another hollow body being located on said second flow channel, said infrared detector being arranged adjacent to said hollow body on said first flow channel, said another infrared detector being arranged adjacent to said another hollow body on said second flow channel. 16. A temperature-measuring device in accordance with claim 15, further comprising: a control unit connected to said infrared detector and said another infrared detector, said control unit controlling heat output of said respiration humidifier based on said hollow body temperature detected by said infrared detector and said another hollow body temperature detected by said another infrared detector. 17. A temperature-measuring device in accordance with claim 16, wherein said hollow body is integrally connected to said first flow channel to form an assembled first flow channel unit, said another hollow body being integrally connected to said second flow channel to form an assembled second flow channel unit. 18. A temperature-measuring device, comprising: a respiration humidifier with a respiration humidifier housing, said respiration humidifier housing defining a respiration humidifier chamber, said respiration humidifier having a first flow channel and a second flow channel, said first flow channel delivering breathing gas into said respiration humidifier chamber, said second flow channel receiving humidified breathing gas from said respiration humidifier chamber;a first hollow body having a first hollow body closed end surface, said first hollow body extending into said first flow channel such that said first hollow body has a first hollow body temperature equal to a breathing gas temperature of the breathing gas in said first flow channel;a first infrared detector disposed opposite said first hollow body such that said first infrared detector detects said first hollow body temperature of said first hollow body without contacting said first hollow body;a second hollow body having a second hollow body closed end surface, said second hollow body extending into said second flow channel such that said second hollow body has a second hollow body temperature equal to a humidified breathing gas temperature of the humidified breathing gas in said second flow channel;a second infrared detector disposed opposite said second hollow body such that said second infrared detector detects said second hollow body temperature of said second hollow body without contacting said second hollow body. 19. A temperature-measuring device in accordance with claim 18, further comprising: a heat output control means connected to said first infrared detector and said second infrared detector for controlling heat output of said respiration humidifier based on said first hollow body temperature and said second hollow body temperature. 20. A temperature-measuring device in accordance with claim 18, wherein said first hollow body is integrally connected to said first flow channel to form an assembled first flow channel unit, said second hollow body being integrally connected to said second flow channel to form an assembled second flow channel unit.