SYSTEM AND METHODS FOR WIRELESS BODY FLUID MONITORING
2 Assignments
0 Petitions
Accused Products
Abstract
An adherent device to monitor a tissue hydration of a patient comprises an adhesive patch to adhere to a skin of the patient. At least four electrodes are connected to the patch and capable of electrically coupling to the patient. Impedance circuitry is coupled to the at least four electrodes to measure a tissue resistance of the patient, where the circuitry is configured to determine the tissue hydration in response to tissue resistance. The circuitry may comprise a processor system and the tissue resistance may correspond to a change in patient body fluid. The impedance circuitry is configured to measure the hydration signal using at least one low measurement frequency, which may be in the range of 0 to 10 kHz. Multiple measurement frequencies may be used and the hydration signal may include a tissue reactance measurement.
187 Citations
63 Claims
-
1-39. -39. (canceled)
-
40. An adherent device to monitor a patient, the device comprising:
-
an adhesive patch to adhere to a skin of the patient; at least two electrodes connected to the patch and capable of electrically coupling to the patient; and circuitry coupled to the at least two electrodes to measure a tissue resistance of the patient at a plurality of frequencies greater than zero, wherein the circuitry is configured to detect a low frequency droop in the tissue resistance and to, when low frequency droop is detected, temporarily suspend data collection or disregard some collected data based at least in part on the fact that the low frequency droop has been detected. - View Dependent Claims (41, 42, 43, 44, 45, 46, 47, 48)
-
-
49. A method of monitoring a patient, the method comprising:
-
adhering an adhesive patch to a skin of the patient to couple at least two electrodes to the skin of the patient to form a skin-electrode interface; measuring a tissue resistance of the patient at a plurality of frequencies greater than zero with impedance circuitry coupled to the at least two electrodes; detecting a low frequency droop in the tissue resistance measurement; and temporarily suspending data collection or disregarding some collected data based at least in part on the fact that the low frequency droop has been detected. - View Dependent Claims (50, 51, 52, 53, 54, 55, 56, 57)
-
-
58. An adherent device to monitor a patient, the device comprising:
-
an adhesive patch to adhere to a skin of the patient; at least two electrodes connected to the patch and capable of electrically coupling to the patient to form a skin-electrode interface; and circuitry coupled to the at least two electrodes to measure an electrocardiogram signal of the patient, wherein the circuitry is configured to measure a characteristic of the electrocardiogram signal and, on the basis of the measured characteristic, determine a quality of the skin-electrode interface. - View Dependent Claims (59, 60)
-
-
61. A method of monitoring a patient, the method comprising:
-
adhering an adhesive patch to a skin of the patient to couple at least two electrodes to the skin of the patient to form a skin-electrode interface; measuring an electrocardiogram signal of the patient with electrocardiogram circuitry coupled to the at least two electrodes; and determining a quality of the skin-electrode interface based on a characteristic of the electrocardiogram signal. - View Dependent Claims (62, 63)
-
Specification