摘要:
Systems and methods for non-invasive respiratory rate measurement are disclosed. In some embodiments, a system comprises a wearable member including an energy transmitter configured to project energy into tissue of a user. An energy receiver generates a multichannel signal based on a first received portion of the energy, the received portion of energy being received through the tissue of the user. A respiratory rate calculation system includes a pre-processing module for filter noise from the signal. A spectrum module determines a spectrum of the signal. A respiratory rate processing module determines a first respiratory rate from the spectrum of the signal. A noise reference and one or more second respiratory rates are obtained. A third respiratory rate is determined based on the first respiratory rate, the noise reference, and the one or more second respiratory rates. A communication module provides a message based on the third respiratory rate.
摘要:
The invention relates to a device for non-invasive measurement of aortic flow in the subdiaphragmatic region in a small laboratory mammal, characterised in that it comprises: - a device for plethysmography of the thorax by inductance measurement, comprising two electrically conducting, extendible coils (2, 3) rigidly attached to an elastic garment (1) that is adjustable to the torso of said mammal (A), - a device (4) for acquiring the signal from variation in the cross-section of each coil, - a processor (6) configured to calculate the instantaneous subdiaphragmatic aortic flow of said mammal from said signals from the variation in cross-section of each coil and from a functional model of the cardiorespiratory system, according to which the exchanges of blood between the thorax and the rest of the body of said mammal consist of an output of blood via the abdominal aorta in the subdiaphragmatic region and an input of blood via the inferior vena cava.
摘要:
A method, system and software for monitoring a signal from a living subject to measure a function of the living subject. Specifically, a computer method, computer system and software for accurately calibrating respiratory inductance plethysmography and esophageal manometry signals to measure effort of breathing before and after extubation of a patient to provide an automated real-time interpretation for a clinician of whether or not the patient has upper airway obstruction, and severity of the same. The method, system and software can be adapted specifically for a child or infant.
摘要:
Verfahren zur Vermessung des Atemvorgangs eines Patienten (5) während einer Magnetresonanzuntersuchung mit einer Magnetresonanzeinrichtung (1), dadurch gekennzeichnet, dass die Reflektionseigenschaften wenigstens eines unterhalb des Patienten (5) angeordneten Spulenelements (6) vermessen und zur Ermittlung von den Atemzustand zu verschiedenen Zeitpunkten beschreibenden Atmungsdaten ausgewertet werden.
摘要:
The present invention provides, among other things, apparatus and methods of use for treating a subject in need of assistance with breathing. In some embodiments the subject suffers from airflow obstruction. In some embodiments, the subject suffers from chronic obstructive pulmonary disease.
摘要:
The present invention relates to the field of ambulatory and non-invasive monitoring of a plurality of physiological parameters of a monitored individual. The invention includes a physiological monitoring apparatus with an improved monitoring apparel worn by a monitored individual, the apparel having attached sensors for monitoring parameters reflecting pulmonary function, or parameters reflecting cardiac function, or parameters reflecting the function of other organ systems, and the apparel being designed and tailored to be comfortable during the individual's normal daily activities. The apparel is preferably also suitable for athletic activities. The sensors preferably include one or more ECG leads and one of more inductive plethysmographic sensors with conductive loops positioned closely to the individual to preferably monitor at least basic cardiac parameters, basic pulmonary parameters, or both. The monitoring apparatus also includes a unit for receiving data from the sensors, and for storing the data in a computer-readable medium. The invention also includes systems comprising a central data repository for receiving, storing, and processing data generated by a plurality of physiological monitored apparatus, and for making stored data available to the individual and to the health care providers.
摘要:
The present invention is directed to an improved method for determining respiratory parameters. The method is capable of discriminating particular respiratory from base respiratory events and comprises the steps: a.) receiving respiratory signals (21) from one or more monitored subjects such that the respiratory signals include one or more particular respiratory events (37-45) and one or more base respiratory events, b.) evaluating the capability of individual respiratory parameters and of combinations of respiratory parameters to statistically discriminate between the particular and the base respiratory events, and c.) selecting an individual respiratory parameter or a combination of respiratory parameters with adequate discriminatory capability.
摘要:
This invention provides a system for processing physiological sensor signal data comprising: a wearable construction comprising one or more sensors sensitive to physiological systems or processes comprising electrocardiographic (ECG) activity and respiratory activity; and computer memory comprising computer instructions toretrieve sensor signals from said wearable construction when worn by a monitored subject during periods comprising unconstrained activities, said retrieved sensor signals comprising ECG signals and respiratory signals; generate an RR interval signal from said ECG signal comprising data describing successive intervals between successive R-waves; and estimate respiratory components in said ECG signal by adaptively processing said ECG signals jointly with said respiratory signals in order to reduce an error signal, wherein a high frequency heart rate variability (HF HRV) signal comprises said estimated respiratory components, a low frequency heart rate variability (LF HRV) signal comprises said error signal.
摘要:
A system for processing physiological sensor signal data comprising:a wearable construction comprising one or more sensors sensitive to physiological systems or processes comprising electroencephalographic (EEG) activity and respiratory activity; and computer memory comprising computer instructions to retrieve sensor signals from said wearable construction when worn by a monitored subject during periods comprising unconstrained activities, said retrieved sensor signals comprising EEG signals and respiratory signals; estimate respiratory components in said EEG signal by adaptively processing said EEG signals jointly with said respiratory signals in order to reduce an error signal; and enhance desired EEG components relative to undesired respiratory components in said EEG signals in dependence on said estimated respiratory components.
摘要:
The present invention relates to the field of ambulatory and non-invasive monitoring of a plurality of physiological parameters of a monitored individual. The invention includes a physiological monitoring apparatus with an improved monitoring apparel worn by a monitored individual, the apparel having attached sensors for monitoring parameters reflecting pulmonary function, or parameters reflecting cardiac function, or parameters reflecting the function of other organ systems, and the apparel being designed and tailored to be comfortable during the individual's normal daily activities. The apparel is preferably also suitable for athletic activities. The sensors preferably include one or more ECG leads and one of more inductive plethysmographic sensors with conductive loops positioned closely to the individual to preferably monitor at least basic cardiac parameters, basic pulmonary parameters, or both. The monitoring apparatus also includes a unit for receiving data from the sensors, and for storing the data in a computer-readable medium. The invention also includes systems comprising a central data repository for receiving, storing, and processing data generated by a plurality of physiological monitored apparatus, and for making stored data available to the individual and to the health care providers.