An acoustic sensor attached to a medical patient can non-invasively detect acoustic vibrations indicative of physiological parameters of the medical patient and produce an acoustic signal corresponding to the acoustic vibrations. The acoustic signal can be integrated one or more times with respect to time, and a physiological monitoring system can determine pulse or respiration parameters based on the integrated acoustic signal. The physiological monitoring system can, for instance, estimate a pulse rate according to pulses in the integrated acoustic signal and a respiration rate according to a modulation of the integrated acoustic signal, among other parameters. Further, the physiological monitoring system can compare the integrated acoustic signal or parameters determined based on the integrated acoustic signal with other signals or parameters to activate alarms.

A self-inflating personal flotation device (SIPFD) configured to be worn by a wearer and aid the wearer automatically. The SIPFD may communicate with a global communication network and pressurized gas cartridge assembly based on a triggering event. The SIPFD may have a wearable data transmitter of a heartbeat device; a water depth device; and a geolocation device. The SIPFD may have a neck inflation device and a torso inflation device both connected to the pressurized gas cartridge assembly to enable the pressurized gas cartridge to inflate the neck and torso inflation devices when prompted. The prompt may be automatic or on request and be performed using an actuator mechanically communicating with the pressurized gas cartridge assembly to: (i) inflate the neck and torso inflation devices; and (ii) deflate the neck and torso inflation devices associated with a wearer.

Systems, devices and methods transmit data from a patient device to a location, for example a remote location, where the patient is monitored. The system may comprise a server system, for example a backend server system, a gateway and the patient worn device. The gateway can be configured to communicate with the patient worn device in response to a list transmitted from the server, for example an approved patient device list transmitted from the server to the gateway. The gateway may exclude communication with patient worn devices that are not on the list. This use of the list can control data throughput from the patient device to the gateway and also from the gateway to the server, such that the communication from the device on the list to the server is maintained and appropriate information can be reliably sent from the patient device to the server.

A self-inflating personal flotation device (SIPFD) configured to be worn by a wearer and aid the wearer automatically. The SIPFD may communicate with a global communication network and pressurized gas cartridge assembly based on a triggering event. The SIPFD may have a wearable data transmitter of a heartbeat device; a water depth device; and a geolocation device. The SIPFD may have a neck inflation device and a torso inflation device both connected to the pressurized gas cartridge assembly to enable the pressurized gas cartridge to inflate the neck and torso inflation devices when prompted. The prompt may be automatic or on request and be performed using an actuator mechanically communicating with the pressurized gas cartridge assembly to: (i) inflate the neck and torso inflation devices; and (ii) deflate the neck and torso inflation devices associated with a wearer.

A method for creating alarm signals based on time-series signal behavior determined from real-time discrete data obtained from a medical device. In one embodiment the method includes identifying patterns in preceding time-series measurement threshold breaches in clinical readings obtained from said medical device when associated with a particular patient, and initiating an alarm signal to a front-line clinician based on the preceding quantity of threshold breaches.

Method and system for determining calving information about a moment at which a cow is going to calve, a period in which a cow is going to calve or the moment at which the cow has calved. The system comprises a sensor and a signal processing unit which is configured to process signals obtained with the sensor. With the sensor a heartbeat of the cow is measured so that the signals obtained with the sensor comprise information about the measured heartbeat of the animal. With the signal processing unit an increased heartbeat is recognized according to a predetermined criterion on the basis of signals obtained with the sensor. If the increased heartbeat is recognized with the signal processing unit, the signal processing unit generates an alarm signal which comprises the calving information.

A method for identifying cardiac bradiacardia behavior may include acquiring pulse volume wave data from a sensor associated with a patient, and calculating metrics associated with peaks detected therein. The metrics may include changes in peak amplitudes of pulse volume peaks and in the times of occurrence of pulse volume peaks. Alternative metrics may include changes in frequency domain parameters derived from the time domain pulse volume wave data. Peak amplitude values may be compared to an amplitude baseline, and differences in successive peak occurrence times may be compared to a time baseline. Cardiac bradycardia behavior may be identified by a combination of a decrease in the pulse volume peak amplitude and an increase in successive peak occurrence times. A system to implement the method may include a computing device in data communication with a photo-plethysmograph. Alternative sensors may include a blood pressure cuff and an ECG device.

A method of determining signal quality in a patient monitoring device includes acquiring one or more signals using the patient monitoring device. One or more signal quality metrics are determined based on the one or more acquired signals. A noise condition is detected based on the one or more signal quality metrics, and a determination is made whether the noise condition should be classified as intermittent or persistent. One or more actions are taken based on the classification of detected noise as intermittent or persistent.

A garment (e.g., a shirt) for monitoring biometric properties of the wearer of the garment is disclosed. The garment may include sensors for monitoring or assessing biometric properties such as, but not limited to, respiration properties, heart properties, and motion properties. These properties may be assessed together to provide an assessment of vital signs and body position (e.g., three-dimensional body position) of the wearer of the garment.

There is provided a method for measuring heart activity of a person in a single-use electrode patch, the method comprising: measuring the heart activity of the person; displaying the heart activity of the person on the basis of the measuring the heart activity; and broadcasting at least one message enabling transfer of heart activity data indicating the heart activity of the person from the electrode patch to the one or more external devices, wherein the broadcasting is performed while the heart activity of the person is being measured and displayed by the electrode patch.