초록 ▼

An apparatus for supplying a respiratory gas to a patient within the scope of the diagnosis and/or the treatment of sleep-related breathing disorders includes an electronic signal processing device for generating a pressure control signal on the basis of indicative signals relating to the breathing

An apparatus for supplying a respiratory gas to a patient within the scope of the diagnosis and/or the treatment of sleep-related breathing disorders includes an electronic signal processing device for generating a pressure control signal on the basis of indicative signals relating to the breathing activity and/or the physiological state of a person. The signal processing device comprises a signal inputting device and an extraction device for generating data field entries according to predefined signal analysis procedures. A pressure signal generator is provided for generating the pressure control signal, taking into account determined data field entries which are at least selected by the extraction device.

대표청구항 ▼

1. An apparatus configured to supply a respiratory gas to a patient, comprising: a signal input device configured to receive breathing activity signals indicative of the patient's instantaneous breathing activity and a physiological state signal indicative of the patient's physiological state which

1. An apparatus configured to supply a respiratory gas to a patient, comprising: a signal input device configured to receive breathing activity signals indicative of the patient's instantaneous breathing activity and a physiological state signal indicative of the patient's physiological state which corresponds to a position of the patient's body;an extraction device configured to dynamically generate data field entries from the breathing activity and physiological state signals in accordance with predetermined signal analysis procedures;a respiration phase coordinating device configured to determine a respiration phase based on the breathing activity signals from the signal input device and at least one set of the data field entries generated by the extraction device, the at least one set being indicative of the patient's physiological state;a pressure presetting device configured to generate a pressure control signal based on one or more of the data field entries from the extraction device and data from the respiration phase coordinating device; anda pressure adaptation device configured to receive the pressure control signal generated by the pressure presetting device and dynamically control a pressure of the respiratory gas based on the pressure control signal. 2. An apparatus according to claim 1, wherein the respiration phase coordinating device is configured to determine the respiration phase based on a threshold determined from the at least one set of the data field entries indicative of the patient's physiological state. 3. An apparatus according to claim 2, wherein the respiration phase coordinating device is configured to increase and decrease the threshold over time. 4. An apparatus according to claim 2, wherein the respiration phase coordinating device is configured to change the threshold upon a detected change in the respiration phase. 5. An apparatus according to claim 2, wherein the respiration phase coordinating device is configured to increase the threshold upon a detected change in the respiration phase and then decrease the threshold as a function of elapsed time from the detected change in the respiration phase. 6. An apparatus according to claim 2, wherein the extraction device is configured to generate a plurality of sets of data field entries, each set of data field entries corresponding to one physiological state. 7. An apparatus according to claim 6, wherein the respiration phase coordinating device is configured to determine which of the plurality of sets of data field entries corresponds to the patient's current physiological state. 8. An apparatus according to claim 7, wherein a relative difference between a maximum threshold and a subsequent minimum threshold depends on the set of data field entries corresponding to the patient's current physiological state. 9. An apparatus according to claim 2, wherein the respiration phase coordinating device is configured to change the threshold as a function of elapsed time from the most recent respiration phase change. 10. An apparatus according to claim 1, wherein the respiration phase coordinating device is configured to determine the respiration phase based on a threshold determined from the at least one set of the data field entries indicative of the patient's physiological state, wherein the respiration phase coordinating device is configured to increase and decrease the threshold over time, wherein the respiration phase coordinating device is configured to change the threshold upon a detected change in the respiration phase,wherein the respiration phase coordinating device is configured to increase the threshold upon a detected change in the respiration phase and then decrease the threshold as a function of elapsed time from the detected change in the respiration phase,wherein the extraction device is configured to generate a plurality of sets of data field entries, each set of data field entries corresponding to one physiological state,wherein the respiration phase coordinating device is configured to determine which of the plurality of sets of data field entries corresponds to the patient's current physiological state, andwherein a relative difference between a maximum threshold and a subsequent minimum threshold depends on the set of data field entries corresponding to the patient's current physiological state. 11. A method for using an apparatus to pressurize respiratory gas to a patient, the method comprising: providing breathing activity signals indicative of the patient's instantaneous breathing activity and physiological state signals indicative of the patient's physiological state to the apparatus, wherein the patient's physiological state corresponds to a position of the patient's body;dynamically generating data field entries from the provided breathing activity and physiological state signals in accordance with predetermined signal analysis procedures;determining a respiration phase based on the provided breathing activity signals and at least one patient specific data set of the dynamically generated data field entries, the at least one patient specific data set being indicative of the patient's physiological state;generating a pressure control signal based on at least one of the dynamically generated data field entries and respiration phase data generated from the received breathing activity signals and the at least one set of the dynamically generated data field entries indicative of the patient's physiological state; anddynamically controlling a pressure of the respiratory gas based on the pressure control signal. 12. A method according to claim 11, wherein determining the respiration phase includes generating a threshold value based on the at least one set of the dynamically generated data field entries indicative of the patient's physiological state. 13. A method according to claim 12, wherein the threshold value is increased upon a detected change in the respiration phase and then decreased as a function of elapsed time from the detected change in the respiration phase. 14. A method according to claim 13, wherein a plurality of sets of data field entries are generated with each of the at least one set of the dynamically generated data field entries indicative of the patient's physiological state, and a relative difference between a maximum threshold value and a subsequent minimum threshold value depends on the respective set of data field entries indicative of the current physiological state of the patient. 15. An apparatus configured to supply a respiratory gas to a patient, comprising: a signal input device configured to receive breathing activity signals indicative of the patient's instantaneous breathing activity and a physiological state signal indicative of the patient's physiological state;an extraction device configured to dynamically generate data field entries from the breathing activity and physiological state signals in accordance with predetermined signal analysis procedures;a respiration phase coordinating device configured to determine a respiration phase based on the breathing activity signals from the signal input device and at least one patient-specific data set generated by the extraction device, the at least one patient-specific data set being based on a time series analysis procedure and a statistical classification of the data field entries;a pressure presetting device configured to generate a pressure control signal based on one or more of the data field entries from the extraction device and data from the respiration phase coordinating device; anda pressure adaptation device configured to receive the pressure control signal generated by the pressure presetting device and dynamically control a pressure of the respiratory gas based on the pressure control signal. 16. An apparatus according to claim 15, wherein the extraction device is configured to generate a plurality of patient-specific data sets, each set being based on a time series analysis procedure and a statistical classification of data field entries and each set corresponding to a physiological state. 17. An apparatus according to claim 15, wherein the respiration phase coordinating device is configured to generate a dynamically changing threshold value indicative of a change in respiration phase, the threshold value being changed upon detection of a change in respiration phase. 18. An apparatus according to claim 17, wherein the respiration phase coordinating device is configured to change the threshold value from a maximum value to a minimum value, a difference between the maximum value and the minimum value being dependent on the patient-specific data set corresponding to the current physiological state of the patient. 19. An apparatus according to claim 18, wherein the threshold value is based on the first and/or the second derivative of a respiratory gas flow. 20. An apparatus according to claim 15, wherein the extraction device is configured to generate a plurality of patient-specific data sets, each set being based on a time series analysis procedure and a statistical classification of data field entries and each set corresponding to a physiological state, wherein the respiration phase coordinating device is configured to generate a dynamically changing threshold value indicative of a change in respiration phase, the threshold value being changed upon detection of a change in respiration phase,wherein the respiration phase coordinating device is configured to change the threshold value from a maximum value to a minimum value, a difference between the maximum value and the minimum value being dependent on the patient-specific data set corresponding to the current physiological state of the patient, andwherein the threshold value is based on the first and/or the second derivative of a respiratory gas flow. 21. An apparatus according to claim 15, wherein the patient's physiological state corresponds to a position of the patient's body. 22. A computer device configured to: receive breathing activity signals indicative of a patient's instantaneous breathing activity and physiological state signals indicative of the patient's physiological state, which corresponds to a position of the patient's body;dynamically generate patient-specific data field entries from the breathing activity and physiological state signals in accordance with predetermined signal analysis procedures;determine a respiration phase based on the received breathing activity signals and at least one set of the dynamically generated patient-specific data field entries, the at least one patient-specific data set being indicative of the patient's physiological state;generate a pressure control signal based on at least one of the dynamically generated data field entries and respiration phase data generated from the received breathing activity signals and the at least one set of the dynamically generated data field entries indicative of the patient's physiological state; anddynamically control a pressure of a respiratory gas based on the pressure control signal. 23. A computer device according to claim 22, wherein determining the respiration phase includes generating a threshold value based on the at least one set of the dynamically generated data field entries indicative of the patient's physiological state. 24. A computer device according to claim 23, wherein the computer device is configured so that the threshold value is increased upon a detected change in the respiration phase and then decreased as a function of elapsed time from the detected change in the respiration phase. 25. A computer device according to claim 24, wherein the computer device is configured so that a plurality of sets of data field entries are generated with each of the at least one set of the dynamically generated data field entries indicative of the patient's physiological state, and a relative difference between a maximum threshold value and a subsequent minimum threshold value depends on the respective set of data field entries indicative of the current physiological state of the patient.