Diagnosis and/or therapy using blood chemistry/expired gas parameter analysis
First Claim
1. A method of providing disordered breathing therapy for a patient whose respiration cycle includes inspiration and expiration intervals, comprising:
- providing a patient-external respiratory therapy and a patient-internal cardiac therapy to a patient, the respiratory therapy being adapted to treat disordered breathing;
measuring an expired respiratory gas concentration of an expired respiratory gas sample acquired at the end of an expiration interval of the patient as determined by a timing element, the measured expired respiratory gas concentration representative of blood gas concentration;
determining one or more parameters influenced by disordered breathing, the one or more parameters comprising at least the expired respiratory gas concentration;
providing one or more parameter thresholds comprising at least an expired respiratory gas threshold; and
adjusting the respiratory therapy and the cardiac therapy based on the one or more parameters and the one or more parameter thresholds.
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Accused Products
Abstract
Methods and systems for diagnosing disorders, including, for example, disordered breathing, involve sensing one or more of a blood chemistry parameter and/or an expired gas parameter, such as expired respiratory gas concentration, blood gas concentration, and blood pH. Diagnosis of the disorder may be performed by a medical device, such as a respiratory therapy device or a cardiac therapy device, based on implantably detected blood gas/pH concentration/level or externally detected expired respiratory gas concentration. Cardiac and respiratory therapies for addressing the disorder may be adjusted based on the detected parameters.
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Citations
30 Claims
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1. A method of providing disordered breathing therapy for a patient whose respiration cycle includes inspiration and expiration intervals, comprising:
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providing a patient-external respiratory therapy and a patient-internal cardiac therapy to a patient, the respiratory therapy being adapted to treat disordered breathing; measuring an expired respiratory gas concentration of an expired respiratory gas sample acquired at the end of an expiration interval of the patient as determined by a timing element, the measured expired respiratory gas concentration representative of blood gas concentration; determining one or more parameters influenced by disordered breathing, the one or more parameters comprising at least the expired respiratory gas concentration; providing one or more parameter thresholds comprising at least an expired respiratory gas threshold; and adjusting the respiratory therapy and the cardiac therapy based on the one or more parameters and the one or more parameter thresholds. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method of providing disordered breathing therapy for a patient whose respiration cycle includes inspiration and expiration, comprising:
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providing a patient-external respiratory therapy and a patient-internal cardiac therapy to a patient, the respiratory therapy being adapted to treat disordered breathing; measuring an expired respiratory gas concentration of an expired respiratory gas sample acquired at the end of an expiration interval of the patient as determined by a timing element, the measured expired respiratory gas concentration representative of blood gas concentration; determining one or more parameters influenced by disordered breathing, the one or more parameters comprising at least the expired respiratory gas concentration; providing one or more parameter thresholds comprising at least an expired respiratory gas threshold; and adjusting, using a therapy controller, the respiratory therapy and the cardiac therapy based on the one or more parameters and the one or more parameter thresholds. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22)
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23. A method of providing disordered breathing therapy for a patient whose breathing includes inspiration and expiration, comprising:
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providing a patient-external respiratory therapy and a patient-internal cardiac therapy to a patient, the respiratory therapy being adapted to treat disordered breathing; measuring an expired respiratory gas concentration of an expired respiratory gas sample acquired at the very end of the patient'"'"'s expiration just before inhalation starts as determined by a timing element, the measured expired respiratory gas concentration representative of blood gas concentration; determining one or more parameters influenced by disordered breathing, the one or more parameters comprising at least the expired respiratory gas concentration; providing one or more parameter thresholds comprising at least an expired respiratory gas threshold; and adjusting, using a therapy controller disposed in an implantable housing, the respiratory therapy and the cardiac therapy based on the one or more parameters and the one or more parameter thresholds. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30)
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Specification