Device for detecting the improper adjustment of a ventilatory support machine used on a mammal
First Claim
1. A device for detecting an improper adjustment of a ventilatory support machine used on a mammal, the device comprising:
- a measuring device configured to measure, as a function of time, a neurophysiological signal involved in the respiratory process of the mammal for at least two successive respiratory cycles, each respiratory cycle comprising a respiratory initiation time, the measuring device comprising an electroencephalograph;
an input for receiving a respiratory initiation signal which is different from the neurophysiological signal;
a processing unit configured to process the neurophysiological signal, the processing unit being configured to select, from the neurophysiological signal, one neurophysiological sub-signal for each respiratory initiation time, each neurophysiological sub-signal being formed by a portion of the neurophysiological signal extending over a period of time comprising the corresponding respiratory initiation time and starting before the corresponding respiratory initiation time, the processing unit being configured to process the neurophysiological sub-signals and to detect an occurrence of a premotor potential before the respiratory initiation time based on the processed neurophysiological sub-signals; and
a detection unit configured to detect an improper adjustment of the ventilatory support machine based on the processed neurophysiological sub-signals, the improper adjustment being detected when the premotor potential occurring before the respiratory initiation time has been detected by the processing unit.
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Abstract
A device for detecting the improper adjustment of a ventilatory support machine used on a mammal. The device (12) includes measuring elements (40) for taking a measurement, as a function of time, of a neurophysiological signal involved in the respiratory process of the mammal for at least two successive breathing cycles, each breathing cycle comprising a respiratory initiation time; an input for receiving a respiratory initiation signal (to) which is different from the neurophysiological signal; elements (42) for processing the neurophysiological signals, which are configured to process the neurophysiological signals for each respiratory initiation time over a period of time starting from the respiratory initiation time; and elements (44) for detecting an improper adjustment of the ventilator using the processed signals.
13 Citations
16 Claims
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1. A device for detecting an improper adjustment of a ventilatory support machine used on a mammal, the device comprising:
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a measuring device configured to measure, as a function of time, a neurophysiological signal involved in the respiratory process of the mammal for at least two successive respiratory cycles, each respiratory cycle comprising a respiratory initiation time, the measuring device comprising an electroencephalograph; an input for receiving a respiratory initiation signal which is different from the neurophysiological signal; a processing unit configured to process the neurophysiological signal, the processing unit being configured to select, from the neurophysiological signal, one neurophysiological sub-signal for each respiratory initiation time, each neurophysiological sub-signal being formed by a portion of the neurophysiological signal extending over a period of time comprising the corresponding respiratory initiation time and starting before the corresponding respiratory initiation time, the processing unit being configured to process the neurophysiological sub-signals and to detect an occurrence of a premotor potential before the respiratory initiation time based on the processed neurophysiological sub-signals; and a detection unit configured to detect an improper adjustment of the ventilatory support machine based on the processed neurophysiological sub-signals, the improper adjustment being detected when the premotor potential occurring before the respiratory initiation time has been detected by the processing unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method of detecting an improper adjustment of a ventilatory support machine used on a mammal, the method comprising:
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receiving a measure, at a measuring device comprising an electroencephalograph, as a function of time, of a neurophysiological signal involved in the respiratory process of the mammal for at least two respiratory cycles, each respiratory cycle comprising a respiratory initiation time; receiving a respiratory initiation signal, from which the respiratory initiation time is determined, which is different from the neurophysiological signal; processing the neurophysiological signal to select, from the neurophysiological signal, one neurophysiological sub-signal for each respiratory initiation time, each neurophysiological sub-signal being formed by a portion of the neurophysiological signal extending over a period of time comprising the corresponding respiratory initiation time and starting before the corresponding respiratory initiation time, and processing the neurophysiological sub-signals and detecting an occurrence of a premotor potential before the respiratory initiation time based on the processed neurophysiological sub-signals; and detecting an improper adjustment of the ventilatory support machine based on the processed neurophysiological sub-signals, the improper adjustment being detected when the premotor potential occurring before the respiratory initiation time has been detected by the processing unit. - View Dependent Claims (16)
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Specification