Method and apparatus for determining alveolar opening and closing
First Claim
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1. Method for determination of the alveolar opening and alveolar closing of the lung, comprising the steps of:
- measuring according to the method of electrical impedance tomography an impedance signal (AU) in at least one lung zone depending on the respiration pressure, determining from the impedance signal a first respiration pressure value which corresponds to the alveolar closing of the corresponding lung zone, and determining from the impedance signal a second respiration pressure value which corresponds to the alveolar opening of the corresponding lung zone.
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Abstract
The invention refers to a method for the regional determination of the alveolar opening and alveolar closing of the lung depending on the respiration pressure, wherein according to the method of electrical impedance tomography, an impedance signal is measured in at least one lung zone depending on the respiration pressure. The alveolar opening or closing of a lung zone is determined, in particular to enable an improved artificial respiration.
43 Citations
30 Claims
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1. Method for determination of the alveolar opening and alveolar closing of the lung, comprising the steps of:
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measuring according to the method of electrical impedance tomography an impedance signal (AU) in at least one lung zone depending on the respiration pressure, determining from the impedance signal a first respiration pressure value which corresponds to the alveolar closing of the corresponding lung zone, and determining from the impedance signal a second respiration pressure value which corresponds to the alveolar opening of the corresponding lung zone. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. Apparatus for determination of the alveolar opening and the alveolar closing of the lung, comprising:
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means for measuring according to the method of electrical impedance tomography an impedance signal (AU) in at least one lung zone depending on the respiration pressure, means for determining from the impedance signal a first respiration pressure value which corresponds to the alveolar closing of the corresponding lung zone, and means for determining from the impedance signal a second respiration pressure value which corresponds to the alveolar opening of the corresponding lung zone. - View Dependent Claims (26, 27, 28, 29, 30)
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Specification