Abstract: The invention provides a system and method for measuring vital signs (e.g. SYS, DIA, SpO2, heart rate, and respiratory rate) and motion (e.g. activity level, posture, degree of motion, and arm height) from a patient. The system features: (i) first and second sensors configured to independently generate time-dependent waveforms indicative of one or more contractile properties of the patient's heart; and (ii) at least three motion-detecting sensors positioned on the forearm, upper arm, and a body location other than the forearm or upper arm of the patient. Each motion-detecting sensor generates at least one time-dependent motion waveform indicative of motion of the location on the patient's body to which it is affixed.

Abstract: The invention provides a sensor for measuring both impedance and ECG waveforms that is configured to be worn around a patient's neck. The sensor features 1) an ECG system that includes an analog ECG circuit, in electrical contact with at least two ECG electrodes, that generates an analog ECG waveform; and 2) an impedance system that includes an analog impedance circuit, in electrical contact with at least two (and typically four) impedance electrodes, that generates an analog impedance waveform. Also included in the neck-worn system are a digital processing system featuring a microprocessor, and an analog-to-digital converter. During a measurement, the digital processing system receives and processes the analog ECG and impedance waveforms to measure physiological information from the patient. Finally, a cable that drapes around the patient's neck connects the ECG system, impedance system, and digital processing system.

Abstract: The invention provides a sensor for measuring both impedance and ECG waveforms that is configured to be worn around a patient's neck. The sensor features 1) an ECG system that includes an analog ECG circuit, in electrical contact with at least two ECG electrodes, that generates an analog ECG waveform; and 2) an impedance system that includes an analog impedance circuit, in electrical contact with at least two (and typically four) impedance electrodes, that generates an analog impedance waveform. Also included in the neck-worn system are a digital processing system featuring a microprocessor, and an analog-to-digital converter. During a measurement, the digital processing system receives and processes the analog ECG and impedance waveforms to measure physiological information from the patient. Finally, a cable that drapes around the patient's neck connects the ECG system, impedance system, and digital processing system.

Abstract: The invention provides a sensor for measuring both impedance and ECG waveforms that is configured to be worn around a patient's neck. The sensor features 1) an ECG system that includes an analog ECG circuit, in electrical contact with at least two ECG electrodes, that generates an analog ECG waveform; and 2) an impedance system that includes an analog impedance circuit, in electrical contact with at least two (and typically four) impedance electrodes, that generates an analog impedance waveform. Also included in the neck-worn system are a digital processing system featuring a microprocessor, and an analog-to-digital converter. During a measurement, the digital processing system receives and processes the analog ECG and impedance waveforms to measure physiological information from the patient. Finally, a cable that drapes around the patient's neck connects the ECG system, impedance system, and digital processing system.

Abstract: The invention provides a sensor for measuring both impedance and ECG waveforms that is configured to be worn around a patient's neck. The sensor features 1) an ECG system that includes an analog ECG circuit, in electrical contact with at least two ECG electrodes, that generates an analog ECG waveform; and 2) an impedance system that includes an analog impedance circuit, in electrical contact with at least two (and typically four) impedance electrodes, that generates an analog impedance waveform. Also included in the neck-worn system are a digital processing system featuring a microprocessor, and an analog-to-digital converter. During a measurement, the digital processing system receives and processes the analog ECG and impedance waveforms to measure physiological information from the patient. Finally, a cable that drapes around the patient's neck connects the ECG system, impedance system, and digital processing system.

Abstract: The invention provides a sensor for measuring both impedance and ECG waveforms that is configured to be worn around a patient's neck. The sensor features 1) an ECG system that includes an analog ECG circuit, in electrical contact with at least two ECG electrodes, that generates an analog ECG waveform; and 2) an impedance system that includes an analog impedance circuit, in electrical contact with at least two (and typically four) impedance electrodes, that generates an analog impedance waveform. Also included in the neck-worn system are a digital processing system featuring a microprocessor, and an analog-to-digital converter. During a measurement, the digital processing system receives and processes the analog ECG and impedance waveforms to measure physiological information from the patient. Finally, a cable that drapes around the patient's neck connects the ECG system, impedance system, and digital processing system.

Abstract: The invention provides a body-worn monitor that measures a patient's vital signs (e.g. blood pressure, SpO2, heart rate, respiratory rate, and temperature) while simultaneously characterizing their activity state (e.g. resting, walking, convulsing, falling). The body-worn monitor processes this information to minimize corruption of the vital signs by motion-related artifacts. A software framework generates alarms/alerts based on threshold values that are either preset or determined in real time. The framework additionally includes a series of ‘heuristic’ rules that take the patient's activity state and motion into account, and process the vital signs accordingly. These rules, for example, indicate that a walking patient is likely breathing and has a regular heart rate, even if their motion-corrupted vital signs suggest otherwise.

Abstract: The invention provides a system for measuring respiratory rate (RR) from a patient. The system includes an impedance pneumography (IP) sensor, connected to at least two electrodes, and a processing system that receives and processes signals from the electrodes to measure an IP signal. A motion sensor (e.g. an accelerometer) measures at least one motion signal (e.g. an ACC waveform) describing movement of a portion of the patient's body to which it is attached. The processing system receives the IP and motion signals, and processes them to determine, respectfully, frequency-domain IP and motion spectra. Both spectra are then collectively processed to remove motion components from the IP spectrum and determine RR. For example, during the processing, an algorithm determines motion frequency components from the frequency-domain motion spectrum, and then using a digital filter removes these, or parameters calculated therefrom, from the IP spectrum.

Abstract: The present invention provides a technique for continuous measurement of blood pressure based on pulse transit time and which does not require any external calibration. This technique, referred to herein as the ‘Composite Method’, is carried out with a body-worn monitor that measures blood pressure and other vital signs, and wirelessly transmits them to a remote monitor. A network of body-worn sensors, typically placed on the patient's right arm and chest, connect to the body-worn monitor and measure time-dependent ECG, PPG, accelerometer, and pressure waveforms. The disposable sensors can include a cuff that features an inflatable bladder coupled to a pressure sensor, three or more electrical sensors (e.g. electrodes), three or more accelerometers, a temperature sensor, and an optical sensor (e.g., a light source and photodiode) attached to the patient's thumb.

Abstract: The invention provides a multi-sensor system that uses an algorithm based on adaptive filtering to monitor a patient's respiratory rate. The system features an impedance pneumography sensor and a motion sensor (e.g., an accelerometer) configured to attach to the patient's torso and measure therefrom a motion signal. The system further comprises a processing system, configured to operably connect to the impedance pneumography sensor and motion sensor, and to determine a respiration rate value by applying filter parameters obtained from the impedance pneumography sensor signals to the motion sensor signals.

Abstract: The invention provides a system and method for measuring vital signs (e.g. SYS, DIA, SpO2, heart rate, and respiratory rate) and motion (e.g. activity level, posture, degree of motion, and arm height) from a patient. The system features: (i) first and second sensors configured to independently generate time-dependent waveforms indicative of one or more contractile properties of the patient's heart; and (ii) at least three motion-detecting sensors positioned on the forearm, upper arm, and a body location other than the forearm or upper arm of the patient. Each motion-detecting sensor generates at least one time-dependent motion waveform indicative of motion of the location on the patient's body to which it is affixed.

Abstract: The invention provides a body-worn vital sign monitor that measures a patient's vital signs (e.g. blood pressure, SpO2, heart rate, respiratory rate, and temperature) while simultaneously characterizing their activity state (e.g. resting, walking, convulsing, falling) and posture (upright, supine). The monitor processes this information to minimize corruption of the vital signs and associated alarms/alerts by motion-related artifacts. It also features a graphical user interface (GUI) rendered on a touchpanel display that facilitates a number of features to simplify and improve patient monitoring and safety in both the hospital and home.

Abstract: The invention also provides an integrated system that combines an ablation system used in the electrophysiology (EP) lab with a novel, body-worn monitor and data-management software system. The body-worn monitor differs from conventional monitors in that it measures stroke volume (SV) and cardiac output (CO) in addition to heart rate (HR) and ECG waveforms. The combined system collects numerical and waveform data from patients before, during, and after an EP procedure, thereby providing a robust data set that can be used for a variety of analytics and reporting purposes. The body-worn monitor can be applied to the patient immediately after the EP procedure, e.g. while they are recovering in a hospital. Once applied, the body-worn monitor measures data in real-time, and transmits them to both an EMR and a software application running on a mobile device, such as a smartphone, tablet, or personal digital assistant.

Abstract: The invention also provides an integrated system that combines an ablation system used in the electrophysiology (EP) lab with a novel, body-worn monitor and data-management software system. The body-worn monitor differs from conventional monitors in that it measures stroke volume (SV) and cardiac output (CO) in addition to heart rate (HR) and ECG waveforms. The combined system collects numerical and waveform data from patients before, during, and after an EP procedure, thereby providing a robust data set that can be used for a variety of analytics and reporting purposes. The body-worn monitor can be applied to the patient immediately after the EP procedure, e.g. while they are recovering in a hospital. Once applied, the body-worn monitor measures data in real-time, and transmits them to both an EMR and a software application running on a mobile device, such as a smartphone, tablet, or personal digital assistant.

Abstract: The invention also provides an integrated system that combines an ablation system used in the electrophysiology (EP) lab with a novel, body-worn monitor and data-management software system. The body-worn monitor differs from conventional monitors in that it measures stroke volume (SV) and cardiac output (CO) in addition to heart rate (HR) and ECG waveforms. The combined system collects numerical and waveform data from patients before, during, and after an EP procedure, thereby providing a robust data set that can be used for a variety of analytics and reporting purposes. The body-worn monitor can be applied to the patient immediately after the EP procedure, e.g. while they are recovering in a hospital. Once applied, the body-worn monitor measures data in real-time, and transmits them to both an EMR and a software application running on a mobile device, such as a smartphone, tablet, or personal digital assistant.

Abstract: The invention also provides an integrated system that combines an ablation system used in the electrophysiology (EP) lab with a novel, body-worn monitor and data-management software system. The body-worn monitor differs from conventional monitors in that it measures stroke volume (SV) and cardiac output (CO) in addition to heart rate (HR) and ECG waveforms. The combined system collects numerical and waveform data from patients before, during, and after an EP procedure, thereby providing a robust data set that can be used for a variety of analytics and reporting purposes. The body-worn monitor can be applied to the patient immediately after the EP procedure, e.g. while they are recovering in a hospital. Once applied, the body-worn monitor measures data in real-time, and transmits them to both an EMR and a software application running on a mobile device, such as a smartphone, tablet, or personal digital assistant.

Abstract: The invention also provides an integrated system that combines an ablation system used in the electrophysiology (EP) lab with a novel, body-worn monitor and data-management software system. The body-worn monitor differs from conventional monitors in that it measures stroke volume (SV) and cardiac output (CO) in addition to heart rate (HR) and ECG waveforms. The combined system collects numerical and waveform data from patients before, during, and after an EP procedure, thereby providing a robust data set that can be used for a variety of analytics and reporting purposes. The body-worn monitor can be applied to the patient immediately after the EP procedure, e.g. while they are recovering in a hospital. Once applied, the body-worn monitor measures data in real-time, and transmits them to both an EMR and a software application running on a mobile device, such as a smartphone, tablet, or personal digital assistant.

Abstract: The invention also provides an integrated system that combines an ablation system used in the electrophysiology (EP) lab with a novel, body-worn monitor and data-management software system. The body-worn monitor differs from conventional monitors in that it measures stroke volume (SV) and cardiac output (CO) in addition to heart rate (HR) and ECG waveforms. The combined system collects numerical and waveform data from patients before, during, and after an EP procedure, thereby providing a robust data set that can be used for a variety of analytics and reporting purposes. The body-worn monitor can be applied to the patient immediately after the EP procedure, e.g. while they are recovering in a hospital. Once applied, the body-worn monitor measures data in real-time, and transmits them to both an EMR and a software application running on a mobile device, such as a smartphone, tablet, or personal digital assistant.

Abstract: The invention provides a system for monitoring an infant or adult patient that includes a garment configured to attach to the infant, and a control module connected to the garment featuring: i) a first sensor that measures HR or a parameter used to determine HR; ii) a second sensor that measures RR or a parameter used to determine RR; iii) a third sensor configured to monitor a PP parameter; and iv) a wireless transmitter configured to receive and wirelessly transmit information from the first, second, and third sensors.

Abstract: The present invention provides an improved, Internet-based system that seamlessly collects cardiovascular data from a patient before, during, and after a procedure for EP or an ID. During an EP procedure, the system collects information describing the patient's response to PES and the ablation process, ECG waveforms and their various features, HR and other vital signs, HR variability, cardiac arrhythmias, patient demographics, and patient outcomes. Once these data are collected, the system stores them on an Internet-accessible computer system that can deploy a collection of user-selected and custom-developed algorithms. Before and after the procedure, the system also integrates with body-worn and/or programmers that interrogate implanted devices to collect similar data while the patient is either ambulatory, or in a clinic associated with the hospital. A data-collection/storage module, featuring database interface, stores physiological and procedural information measured from the patient.