System and method for conserving battery power in a patient monitoring system
First Claim
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1. A vital-signs patch in a patient monitoring system, the patch comprising:
- a patch housing configured for attaching to the skin of a patient and containing;
a plurality of electrodes in contact with the skin of the patient to measure a plurality of physiological parameters of the patient;
a radio configured to selectably transmit and receive on more than one frequency; and
a processor operably connected to the radio, the processor;
configuring a radio that can be configured to transmit and receive on more than one frequency to operate at a selected frequency, the selected frequency determined from a stored list of frequencies;
listening on the selected frequency to determine an amplitude of radio noise at the selected frequency;
comparing the amplitude of the radio noise to a threshold value;
when the amplitude of the radio noise is greater than the threshold value, determining a new frequency from the stored list of frequencies and repeating the steps of configuring, listening and comparing at the new frequency prior to initiating transmission on the new frequency;
when the amplitude of the radio noise is below the threshold value, using the selected frequency for initiating the transmission to a receiving device; and
switching the transmission to a selected other frequency in response to sending a confirmation of a command received on the selected frequency from the receiving device that commands the processor to switch to the selected other frequency.
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Abstract
A vital-signs patch in a patient monitoring system is disclosed. The patch includes a housing configured to be attached to the skin of a patient, the housing containing a radio that can selectably transmit and receive on more than one frequency and a processor. The processor configures the radio to transmit and receive on a determined frequency based at least in part on the level of noise detected on the frequencies.
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Citations
13 Claims
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1. A vital-signs patch in a patient monitoring system, the patch comprising:
a patch housing configured for attaching to the skin of a patient and containing; a plurality of electrodes in contact with the skin of the patient to measure a plurality of physiological parameters of the patient; a radio configured to selectably transmit and receive on more than one frequency; and a processor operably connected to the radio, the processor; configuring a radio that can be configured to transmit and receive on more than one frequency to operate at a selected frequency, the selected frequency determined from a stored list of frequencies; listening on the selected frequency to determine an amplitude of radio noise at the selected frequency; comparing the amplitude of the radio noise to a threshold value; when the amplitude of the radio noise is greater than the threshold value, determining a new frequency from the stored list of frequencies and repeating the steps of configuring, listening and comparing at the new frequency prior to initiating transmission on the new frequency; when the amplitude of the radio noise is below the threshold value, using the selected frequency for initiating the transmission to a receiving device; and switching the transmission to a selected other frequency in response to sending a confirmation of a command received on the selected frequency from the receiving device that commands the processor to switch to the selected other frequency.
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2. A method of conserving battery power in a wireless vital-signs patch that is attached to a patient in a patient monitoring system, comprising the steps of:
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configuring a radio that can be configured to transmit and receive on more than one frequency to operate at a selected frequency, the selected frequency determined from a stored list of frequencies; listening on the selected frequency to determine an amplitude of radio noise at the selected frequency; comparing the amplitude of the radio noise to a threshold value; when the amplitude of the radio noise is greater than the threshold value, determining a new frequency from the stored list of frequencies and repeating the steps of configuring, listening and comparing at the new frequency prior to initiating transmission on the new frequency; when the amplitude of the radio noise is below the threshold value, using the selected frequency for initiating the transmission to a patch in a patient monitoring system, the patch comprising a plurality of electrodes in contact with skin of a patient to measure a plurality of physiological parameters of the patient; and switching the transmission to a selected other frequency in response to sending a confirmation of a command received on the selected frequency from the receiving device that commands the processor to switch to the selected other frequency. - View Dependent Claims (3, 4, 5)
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6. A bridge in a patient monitoring system, the bridge comprising:
a bridge housing containing; at least one radio configured to selectably transmit and receive on more than one frequency; and a processor operably connected to the radio, the processor; configuring a radio that can be configured to transmit and receive on more than one frequency to operate at a selected frequency, the selected frequency determined from a stored list of frequencies; listening on the selected frequency to determine an amplitude of radio noise at the selected frequency; comparing the amplitude of the radio noise to a threshold value; when the amplitude of the radio noise is greater than the threshold value, determining a new frequency from the stored list of frequencies and repeating the steps of configuring, listening and comparing at the new frequency prior to initiating transmission on the new frequency; and using the selected frequency for initiating the transmission to a patch in a patient monitoring system when the amplitude of the radio noise is below the threshold value, the patch comprising a plurality of electrodes in contact with skin of a patient to measure a plurality of physiological parameters of the patient; and switching to transmitting to the patch using another selected frequency in response to an acknowledgement received from the patch that the patch received a command to switch to the another selected frequency. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13)
Specification