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169 results about "Respiratory failure" patented technology
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Respiratory failure results from inadequate gas exchange by the respiratory system, meaning that the arterial oxygen, carbon dioxide or both cannot be kept at normal levels. A drop in the oxygen carried in blood is known as hypoxemia; a rise in arterial carbon dioxide levels is called hypercapnia. Respiratory failure is classified as either Type 1 or Type 2, based on whether there is a high carbon dioxide level. The definition of respiratory failure in clinical trials usually includes increased respiratory rate, abnormal blood gases (hypoxemia, hypercapnia, or both), and evidence of increased work of breathing. Respiratory failure causes an altered mental status due to ischemia in the brain.
Non-invasive monitoring of respiratory rate, heart rate and apnea
A method and apparatus for estimating a respiratory rate of a patient. The method comprises the steps of recording respiratory sounds of the patient, deriving a plurality of respiratory rates from the recorded sounds using a plurality of respiratory rate estimating methods and applying a heuristic to the plurality of derived respiratory rates, the heuristic selecting one of the derived respiratory rates. The selected respiratory rate is the estimated respiratory rate. The apparatus comprises at least one sensor recording respiratory sounds of the patient, a plurality of respiratory rate processors, each of the processors comprising a respiratory rate calculating method, a heuristic means for selecting one of the calculated respiratory rates and a display means for displaying the selected respiratory as the estimated respiratory rate.
Owner:JPMORGAN CHASE BANK NA
Device for determining respiratory rate and other vital signs
A body-worn sensor that measures respiratory rate and other vital signs using an acoustic sensor (e.g., a small-scale sensor). The body-worn sensor features a chest-worn patch sensor that combines both the acoustic sensor and an ECG electrode into a single adhesive patch. To measure blood pressure, the device additionally performs a ‘composite’ PTT-based measurement that features both pressure-dependent and pressure-free measurements. The acoustic sensor measures respiration rate by recording sounds related to the patient's inspiration and expiration. The acoustic sensor is typically placed near the patient's trachea, but can also be placed on the middle right and left side of the chest, and the middle right and left side of the back.
Owner:SOTERA WIRELESS
Body-worn monitor for measuring respiratory rate
ActiveUS20110257555A1Lighten the computational burdenSave powerElectrocardiographyInertial sensorsAccelerometerFrequency spectrum
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.
Owner:SOTERA WIRELESS
Body-worn monitor for measuring respiratory rate
ActiveUS20110257552A1Accurate measurementImprove true positive alarmElectrocardiographyInertial sensorsAccelerometerFrequency spectrum
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.
Owner:SOTERA WIRELESS
Body-worn monitor for measuring respiratory rate
ActiveUS20110257551A1Accurate measurementImprove true positive alarmRespiratory organ evaluationSensorsFrequency spectrumAccelerometer
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.
Owner:SOTERA WIRELESS
Physiological monitoring system and improved sensor device
Owner:DOLPHIN MEDICAL
Device for determining respiratory rate and other vital signs
A body-worn sensor that measures respiratory rate and other vital signs using an acoustic sensor (e.g., a small-scale sensor). The body-worn sensor features a chest-worn patch sensor that combines both the acoustic sensor and an ECG electrode into a single adhesive patch. To measure blood pressure, the device additionally performs a ‘composite’ PTT-based measurement that features both pressure-dependent and pressure-free measurements. The acoustic sensor measures respiration rate by recording sounds related to the patient's inspiration and expiration. The acoustic sensor is typically placed near the patient's trachea, but can also be placed on the middle right and left side of the chest, and the middle right and left side of the back.
Owner:SOTERA WIRELESS
Ventilatory stabilization technology
InactiveUS7073501B2Reduce gas pressureEasy to breatheRespiratorsOperating means/releasing devices for valvesNasal cavityCentral sleep apnea
A system for reducing central sleep apnea (CSA) is described in which certain methods of increasing a patient's rebreathing during periods of the sleep cycle are used. By increasing rebreathing during periods of overbreathing, the over-oxygenation which typically results from the overbreathing period can be reduced, thus reducing the compensating underbreathing period and effectively reducing the loop gain associated with the central sleep apnea. Nasal occlusion and a leak resistant oral interface provide control for gas leaks from a patent interface.
Owner:UTI LLP
Multiple function airway adapter
InactiveUS7335164B2Promote generationEasy to measureAnalysis using chemical indicatorsChemiluminescene/bioluminescenceRespiratory flowAirway adaptor
An integrated airway adapter capable of monitoring any combination of respiratory flow, O2 concentration, and concentrations of one or more of CO2, N2O, and an anesthetic agent in real time, breath by breath. Respiratory flow may be monitored with differential pressure flow meters under diverse inlet conditions through improved sensor configurations which minimize phase lag and dead space within the airway. Molecular oxygen concentration may be monitored by way of luminescence quenching techniques. Infrared absorption techniques may be used to monitor one or more of CO2, N2O, and anesthetic agents.
Owner:NTC TECH
Out flow resistance switching ventilator and its core methods
InactiveUS20080011301A1Ensure ventilation safetyIncrease spaceRespiratorsOperating means/releasing devices for valvesAutonomous breathingFlow resistivity
An out flow resistance switching ventilator and its methodology for providing mechanical ventilation support to the respiratory failure patient are claimed. Based on the continuous out flow impounding ventilation mechanism, the apparatus provides ventilation by switching flow resistance between two different levels at a continuous gas flow system outlet valve controlled by patient's spontaneous breathing or preset mandatory parameters, resulting in airway pressure levels switching, and therefore creating lung volume switching, which is totally different from either volume ventilation or pressure ventilation mechanism utilized in the current conventional ventilators.
Owner:QIAN YUANCHENG
Respiratory valve
InactiveUS6886561B2Avoid exposure to contaminationWithout any supportTracheal tubesFire rescueRespiratorEngineering
A respiratory valve apparatus with a housing having a upper entry port and an opposite endotracheal tube connection port, along with a resuscitation bag connection port and an respirator connection port. The housing has an inner chamber. A reciprocating valve assembly fits within a chamber and slides between two positions whereby the entry, endotracheal, and respirator ports are open in one position, and the entry, endotracheal, and resuscitation ports are open in the second position. The valve assembly is a component of a surgical kit including a resuscitation bag, an endotracheal tube, and a suction catheter. A guide fixture can be attached to the entry port to help steer a catheter through the apparatus. An elongated protective bag can be sealably attached around the catheter to prevent external contact with the catheter surfaces when it is withdrawn.
Owner:BAYRON HARRY +1
Body-worn monitor for measuring respiratory rate
ActiveUS9339209B2Lighten the computational burdenSave powerElectrocardiographyInertial sensorsAccelerometerFrequency spectrum
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.
Owner:SOTERA WIRELESS
Method and system for self-monitoring of environment-related respiratory ailments
InactiveUS20090112114A1Improve standardsInertial sensorsAuscultation instrumentsDiseasePresent method
Methods and systems for continual self-monitoring of respiratory health and components for use therewith. The present methods and systems and their related components improve the standard of core in respiratory health self-monitoring by providing continual and unobtrusive monitoring that accounts for environmental, physiological and patient background information, and is capable of yielding a complex array of respiratory health-preserving responses. In some embodiments, the present methods and systems leverage ubiquitous handheld electronic devices [e.g. cell phones and personal data assistants (PDA)] for respiratory health self-monitoring.
Owner:SHARP LAB OF AMERICA
Body-worn monitor for measuring respiratory rate
ActiveUS8888700B2Lighten the computational burdenSave powerInertial sensorsRespiratory organ evaluationAccelerometerFrequency spectrum
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.
Owner:SOTERA WIRELESS
Breath training device
The inventive breath training device comprises a respiratory tube, a low-frequency mechanical air oscillation generator provided with an oscillation chamber embodied therein and provided with an input channel which is embodied in the form of an upwardly extending saddle-shaped body of revolution, contains a spherical ball and is connected to the respiratory tube and to an output channel communicating with ambient air, wherein the respiratory tube is provided with a jacket in which the body of the low-frequency mechanical air oscillation generator rotatable about a horizontal axis is fixed and a bypass chamber provided with an inspiratory tube is formed, said inspiratory tube comprises an inspiratory valve provided with a tubular attachment and the output channel of the oscillation chamber of the low-frequency mechanical air oscillation generator is also provided with an expiratory valve.
Owner:OOO SPORT TECH
Body-worn monitor for measuring respiratory rate
ActiveUS9173594B2Lighten the computational burdenSave powerEvaluation of blood vesselsRespiratory organ evaluationFrequency spectrumAccelerometer
Owner:SOTERA WIRELESS
Body-worn monitor for measuring respiratory rate
ActiveUS9173593B2Lighten the computational burdenSave powerElectrocardiographyInertial sensorsFrequency spectrumAccelerometer
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.
Owner:SOTERA WIRELESS
Body-worn monitor for measuring respiratory rate
ActiveUS20110257553A1Accurate measurementImprove true positive alarmElectrocardiographyInertial sensorsAccelerometerFrequency spectrum
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.
Owner:SOTERA WIRELESS
RNA interference mediated inhibition of respiratory syncytial virus (RSV) expression using short interfering nucleic acid (siNA)
InactiveUS20060287267A1Improves various propertyImprove the immunityBiocideSugar derivativesLipid formationDisease
This invention relates to compounds, compositions, and methods useful for modulating sespiratory syncytial virus (RSV) gene expression using short interfering nucleic acid (siNA) molecules. This invention also relates to compounds, compositions, and methods useful for modulating the expression and activity of other genes involved in pathways of RSV gene expression and / or activity by RNA interference (RNAi) using small nucleic acid molecules. In particular, the instant invention features small nucleic acid molecules, such as short interfering nucleic acid (siNA), short interfering RNA (siRNA), double-stranded RNA (dsRNA), micro-RNA (miRNA), and short hairpin RNA (shRNA) molecules and methods used to modulate the expression of RSV genes, including cocktails of such small nucleic acid molecules and lipid nanoparticle formulations of such such small nucleic acid molecules cocktails thereof. The application also relates to methods of treating diseases and conditions associated with RSV gene expression, such as RSV infection, respiratory failure, bronchiolitis and pneumonia, as well as providing dosing regimens and treatment protocols.
Owner:SIRNA THERAPEUTICS INC
Nitric oxide gas supply system of respiratory failure salvage instrument
InactiveCN1730115AExtend your lifeEasy to operateRespiratorsNitric oxideHigh concentrationElectric discharge
Disclosed a nitric oxide supply system of respiratory failure rescue device belongs to the disease therapy apparatus, which avoids the high concentration NO gas cylinder, the high concentration dry gas cylinder and the nitrogen-oxygen mixed gas cylinder. The invention uses the air as raw material for attaining the NO at any time without the storage and via controlling the electric discharge condition, generates NO gas at most with least NO2 harmful gas to attain the low ratio of NO2 / NO. While the concentration of NO ranges from 0-200 ppm in the pulse frequency of 1-90 Hz. The invention comprises an air pump connected in series to the gas passage, a clean-dry air generating device, a flow counter, a pulse generate and control circuit, a arc discharge reactor, a particle filter film, a NO2 catalytic reduction conversion apparatus, a cooler, a particle filter film, a selective absorber and a gas monitor.
Owner:HUAZHONG UNIV OF SCI & TECH
Systems, methods and kits for measuring respiratory rate and dynamically predicting respiratory episodes
InactiveUS20140213925A1High accuracy peak flow measurementPerson identificationAuscultation instrumentsMouth pieceInspiratory flow
This disclosure is directed to devices, systems, kits and methods for measuring peak expiratory or inspiratory flow-rate and dynamically predicting respiratory episodes. Additionally, systems for analyzing and processing the measurement in a communication networked environment are also provided. An aspect of the disclosure is directed to a respiratory device, In some configurations the respiratory device comprises a housing adaptable and configurable to communicate with an electronic device, a mouth piece having a proximal end and a distal end configurable to engage a mouth of a patient and transmit an air flow, one or more diaphragm sensors configured to detect a breath vibration from the air flow in the mouth piece, and a processor adaptable and configurable to analyze the breath vibration detected by the one or more diaphragm sensors.
Owner:RESPIRI LTD
Clinical monitoring in open respiratory airways
A novel and non-obvious method, system and apparatus for determining respiratory volume flow rate of a subject and associated parameters such as tidal volume, minute volume, and respiratory rate. The method for determining respiratory volume flow rate of a subject can include selecting an airway cavity of the subject, measuring delivery volume flow rate of respiratory gas delivered to the airway cavity, measuring pressure within the airway cavity and calculating a respiratory volume flow rate of the subject using the measured delivery volume flow rate of respiratory gas delivered to the airway cavity and the measured pressure within the airway cavity. The method further can include generating a warning signal selected from the group consisting of an indicator that a respiratory volume flow value is outside of an expected value for the subject and an indicator that an airway cavity measurement value does not conform to an expected value.
Owner:MERGENET MEDICAL
Respiratory valve
ActiveUS20120048274A1Reduce the possibilityWithout any supportRespiratorsMultiple way valvesLung CollapseEndotracheal tube
A respiratory valve apparatus with a housing having an inner chamber, an endotracheal tube connection port, a respirator connection port and a resuscitation bag connection port. A valve positioned within the inner chamber can switch the flow between a manual resuscitation bag port and a ventilator port enabling the patient to be treated without having to disconnect the respirator support system to thereby connect the resuscitation bag. This prevents the loss of positive end expiratory pressure (PEEP) in the lungs and guards against lung collapse and hemodynamic compromise. The valve includes preloaded seals that will create minimal dragging during valve actuation and work under both positive and negative pressure. The apparatus includes a tethered cover for closure of the resuscitation bag port for sealably covering the port when a bag is not attached or the ventilator connector during patient transport. A sealing arrangement within the resuscitator bag port insures that PEEP in maintained when the resuscitator bag adapter is inserted into the housing.
Owner:BAYWIN
Diagnostic And Therapeutic Chest Casing
A system and method is provided for detection, forewarning, and rapid therapeutic treatment of a patient's ischemic and arrhythmic heart condition, congestive heart failure, respiratory failure, etc. The system comprises a chest casing of a form fitting material. The inner surface of the chest casing comprises electrocardiogram sensor electrodes, auscultation sensors, impedance sensor electrodes, etc. The electrocardiogram sensor electrodes detect abnormal electrocardiogram signals. The auscultation sensors record internal sounds at predefined cardiac and respiratory auscultation sensor points. The impedance sensor electrodes measure thoracic impedance across two or more points on the chest wall. A control unit is connected to the sensors for collecting and processing patient information. The control unit transmits the processed patient information to an external monitoring station. The chest casing comprises therapeutic delivery points for delivering therapeutic electrical dosages and different therapies, for example, cooling therapy, to the patient via therapeutic devices connected on the chest casing.
Owner:AZIZ KUSAI SAADELDIN
Non-intrusive wearable respiratory failure alarm apparatus and method thereof
InactiveUS20120136232A1Minimizing restrictionRespiratory organ evaluationSensorsElectrical resistance and conductanceEngineering
A non-intrusive wearable respiratory failure alarm apparatus and method capable of detecting a user's respiratory failure state by estimating a change in a user's respiratory rate, while minimizing restrictions on a user's behavior are provided. The non-intrusive wearable respiratory failure alarm apparatus includes: a chest girth measurement unit including one or more resistive electro-threads attached to or worn on a user's chest, and generating a resistance value corresponding to the user's chest girth through the resistive electro-threads; a signal processing unit calculating a user's respiratory rate and whether or not the user is in respiratory failure by referring to the resistance value; and an output unit providing information regarding the user's respiratory rate and / or information regarding whether or not the user is in respiratory failure to the user or a monitoring device.
Owner:ELECTRONICS & TELECOMM RES INST
Devices, systems, and methods for peripheral arteriovenous fistula creation
ActiveUS9782533B2Good treatment effectReduce risk and adverse eventOther blood circulation devicesMedical devicesRESPIRATORY DISTRESS SYNDROME ADULTDisease
Owner:EDWARDS LIFESCIENCES CORP
Metabolic measurement system including a multiple function airway adapter
Owner:RIC INVESTMENTS LLC
Method for measuring respiratory rate and heart rate of human body based on ultra-wideband radar
InactiveCN108577815AHigh precisionOvercome limitationsSensorsMeasuring/recording heart/pulse rateComputation complexityBand-pass filter
The invention relates to the fields of radar microwave signal processing technologies and life medicine, and in particular relates to a method for measuring the respiratory rate and the heart rate ofthe human body based on ultra-wideband radar. The technical key points of the scheme are as follows: the method comprises the following steps: S1, carrying out initialization on the ultra-wideband radar; S2, acquiring echo signals; S3, calculating the position information of the person according to the echo signals; S4, carrying out Butterworth band-pass filtering on one-dimensional time series signals in S3; S5, enhancing the signals by adopting a Min-Max normalization method; S6, smoothing the enhanced signals by adopting the Harming window; S7, carrying out fast discrete Fourier transform on the signals after smoothing processing; and S8, searching the peak values of the signals in the breathing zone and the heart rate zone, wherein the searched peak values are adopted as the parametersof respiration and heartbeat. The method is applicable to the non-contact measurement for respiration and heartbeat, can be applied to the special human body and environment, and has the relatively high precision and relatively low computation complexity.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA
Human respiration detection method based on WiFi channel state information
InactiveCN109998549ARealize detectionEasy to deployRespiratory organ evaluationSensorsFrequency spectrumPeak value
The invention provides a human respiration detection method based on WiFi channel state information. Respiration channel state information data of different rates of people in the indoor environment is collected, amplitude information is extracted, then filtering and direct current removal are carried out on the channel state information (CSI) data, and an obvious respiratory cycle signal is obtained; in a respiratory signal extraction stage, subcarriers sensitive to respiratory movements are mainly selected, then subcarrier data is converted by adopting multi-resolution discrete wavelets, a respiratory signal with a specific frequency band is obtained, background noise is eliminated, finally, frequency domain conversion is carried out on the respiratory signal after wavelet conversion, the frequency corresponding to a peak value of a magnitude spectrum is obtained, and finally, the respiratory rate is obtained. In order to measure the accuracy, rate results obtained under different respiratory conditions are observed. The human respiration detection method based on the WiFi channel state information can effectively achieve the detection of human respiration at low cost, and has certain application value in the fields such as the human health.
Owner:ZHEJIANG UNIV OF TECH
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