Patent ID: 8915741

Claim:
An implantable sleep quality evaluation device for implantation into a patient, comprising: a detector system including one or more patient-internal sensors for detecting and determining a first measure related to a heart rate of the patient, a second measure related to a respiration of the patient, and a third measure related to an activity of the patient; a memory; and a sleep quality processor coupled to the detector system and configured to: determine a sleep condition of the patient based on the first measure related to the heart rate of the patient, the second measure related to the respiration of the patient, and the third measure related to the activity of the patient, in combination with one or more thresholds, wherein the sleep quality processor uses the second measure related to respiration to characterize a minute ventilation (MV) of the patient, and uses a measure related to minute ventilation (MV) of the patient in determining the sleep condition of the patient; and store the sleep condition into the memory of the implantable sleep quality evaluation device.