Method and apparatus for wireless health monitoring and emergent condition prediction
The present invention relates generally to an adherent sensor patch for wireless and remote physiological monitoring and evaluation of health and disease state of a patient wearing the patch, and specifically with respect to cardiac and pulmonary pathologies, including heart failure and sleep apnea. Data generated by the patch, which includes a microphone sensor and other sensors, is processed by a remote server and is made accessible to caregivers and also used to manage, calibrate and control the operations of the sensors of the patch.
1. A wearable body sensor patch for monitoring a health state of a patient, comprising:
an accelerometer;
a first electrode pad disposed on the patch and configured to be adhesively attached to the skin of a patient;
a second electrode pad disposed on the patch and configured to be adhesively attached to the skin of the patient;
a microphone (i) integrated with the first pad, (ii) having a hole or a funnel bored in a non-conductive area of the first pad, (iii) configured to have a direct air or diaphragm contact with the patient's chest wall disposed on the patch, (iv) configured to detect cardiac and pulmonary acoustic signals continuously for six to twenty-four hours during which the patient performs a plurality of daily activities in an outpatient setting including walking, sitting and sleeping, and (v) configured to be coupled to one of a mobile cellular device or a remote server; and
the patch having a generally rectangular shape and rounded edges and a form factor approximately the size of a human palm; wherein,
the one of the cellular device or the remote server is configured to provide information related to the signals to a remote healthcare provider in one of a time delayed or a real time manner;
the accelerometer determines noise level and determines if the patient is walking, sitting or sleeping;
data associated with the microphone is read for the six to twenty-four hours in windows of static or dynamic duration lengths, wherein the reading windows are initiated based on the noise level and during each of the plurality of daily activities to monitor patient compliance;
the first pad provides acoustic insulation to the microphone and a snug contact between the microphone and the chest wall; and
the patch is reusable by the patient for at least one month.
2. The patch of claim 1 , wherein the remote server or the cellular device instructs the wearable body sensor patch to one of stop processing or stop transmitting data generated by the microphone if the data generated by accelerometer indicates that the ambient noise is above a predetermined threshold level.
3. The patch of claim 1 , wherein the remote server or the cellular device instructs the wearable body sensor patch to reduce a duty cycle associated with the operation of the microphone if the data generated by accelerometer indicates that the ambient noise is above a predetermined threshold level.
4. The patch of claim 1 , wherein the microphone includes one of a direct air microphone without a diaphragm or a contact microphone including a diaphragm.
5. The patch of claim 1 , wherein the remote server is configured to isolate data related to pulmonary acoustic signals from data related to cardiac acoustic signals.
6. The patch of claim 1 , further comprising: the wearable body sensor patch includes an electrocardiogram sensor and wherein the remote server is configured to validate the information associated with the acoustic signals by comparing it with data associated with the electrocardiogram sensor.
7. The patch of claim 1 , further comprising:
the microphone includes an intake portion, wherein the intake portion is elevated above the first and second electrodes.
8. The patch of claim 1 , further comprising: the first electrode pad includes a first surface facing the patch and rigidly attached to the patch and a second surface facing away from the patch and configured to adhere to a patient's skin.
9. The patch of claim 1 , further comprising: the second electrode pad includes a first surface facing the patch and rigidly attached to the patch and a second surface facing away from the patch and configured to adhere to a patient's skin.
10. The patch of claim 1 , wherein the remote healthcare provider includes one of a physician, a nurse, a caregiver, a family member of the patient, or a friend of the patient, wherein the healthcare provider is remotely located from the patient.
11. The patch of claim 1 , wherein the microphone is configured to detect cardiac and pulmonary acoustic signals to monitor the patient for heart failure or sleep apnea when the patient is sleeping in an outpatient setting.
12. The patch of claim 1 , wherein the one of the cellular device or the remote server is configured to provide information related to the signals to a remote healthcare provider in a real time manner if the information indicates an acute condition.
13. The patch of claim 1 , wherein the one of the cellular device or the remote server is configured to provide information related to the signals to a remote healthcare provider in a time delayed manner if the information relates to a condition that is not an acute condition.