Abstract: Airway impedance of a subject using a respiratory treatment device can be measured, in accordance with one or more embodiments. A conduit is configured to communicate a flow of inhaled gas and a flow of exhaled gas to and from an airway of the subject using the respiratory treatment device. A first valve is disposed within the conduit and configured to affect the flow of exhaled gas. One or more sensors are disposed within the conduit and are configured to provide a signal conveying information associated with one or more characteristics of gas exhaled by the subject while the flow of exhaled gas is affected or unaffected by the first valve. An airway impedance monitoring module can be executed by a processor to determine an impedance metric of the airway of the subject based on the information conveyed by the signal provided by the one or more sensors.

Abstract: A data collection system collects and stores physiological data from an ambulatory patient at a high resolution and/or a high data rate (“more detailed data”) and sends a low-resolution and/or downsampled version of the data (“less detailed data”) to a remote server via a wireless network. The server automatically analyzes the less detailed data to detect an anomaly, such as an arrhythmia. A two-tiered analysis scheme is used, where the first tier is more sensitive and less specific than the second tier. If the more sensitive analysis detects or suspects the anomaly, the server signals the data collector to send more detailed data that corresponds to a time period associated with the anomaly. The more specific second tier analyzes the more detailed data to verify the anomaly. The server may also store the received data and make it available to a user, such as via a graphical or tabular display.

Abstract: There is provided a method for dynamically determining a breath related parameter, which includes averaging a breath related parameter over a first period of time, calculating a breath related value over a second period of time and adapting the duration of the first period of time according to the calculated breath related value.

Abstract: Systems, devices, and methods for determining a user's lung capacity may employ a sound-producing breathing device and a recording device such as a microphone included in a user electronic device (e.g., smart phone or tablet computer). A user may inhale or exhale through the sound-producing breathing device, thereby producing a sound that is received by the microphone and communicated to a processor. The processor may analyze the received sound recording to determine one or more sound intensity values over, for example, the duration of the received sound and/or points in time within the sound recording. The sound intensity values may then be used to determine the user's lung capacity.

Abstract: Described herein are various embodiments of a method and system for sleep detection. For example, in one embodiment, a method is described for automatically characterizing digitized breath sounds recorded from a subject over time as indicative of the subject being one of asleep and awake. This method comprises identify individual breathing cycles in a given segment of the recorded breath sounds; calculating one or more preset breathing cycle characteristics from the identified breathing cycles; evaluating a relative regularity of the calculated characteristics for the given segment; and upon the relative regularity satisfying a preset high regularity condition, outputting a sleep status indicator that the subject was likely asleep during the segment, otherwise outputting a wake indicator that the subject was likely awake during the segment.

Abstract: Medication management and reporting technology, in which output from at least one sensor configured to sense physical activity in a building in which medication of a patient is located is monitored and a determination is made to capture one or more images of the medication based on the monitoring. A camera is used to capture an image of the medication and the captured image is analyzed to detect a state of the medication. Information regarding a schedule by which the medication should be taken by the patient is accessed and an expected state of the medication is determined. The detected state is compared with the expected state and a determination is made that the patient has departed from the schedule based on the comparison revealing that the detected state does not match the expected state. A message indicating the departure from the schedule is sent based on the determination.

Abstract: A CNC machine shaping tool is efficiently used by monitoring human audible sound during shaping. A sound information set is created for a tool shaping a workpiece. Shaping sounds are recorded and sliced into short term units. A human operator assigns tool condition labels to each slice. Short term units are combined into mid term units. Noise is reduced by profiling. Mid term sound related features of time and frequency domains are extracted. Dimensionality is reduced by robust principal component analysis. The principal component set is balanced, e.g. by SMOTE. A classifier and principal components are selected. An information set of patterns of values of selected principal components for the tool is created. In an industrial setting, shaping sounds are recorded, noise reduced and select principal component vector values are compared to the tool condition labeled patterns of values in the information set to identify tool condition before deterioration.

Abstract: The invention provides a physiological probe that comfortably attaches to the base of the patient's thumb, thereby freeing up their fingers for conventional activities in a hospital, such as reading and eating. The probe, which comprises a separate cradle module and sensor module, secures to the thumb and measures time-dependent signals corresponding to LEDs operating near 660 and 905 nm. The cradle module, which contains elements subject to wear, is preferably provided as a disposable unit.

Abstract: An electronic device includes a display, communication circuitry, at least one sensor, and a processor electrically connected with the display and the at least one sensor. The processor is configured to, based on state information obtained by the at least one sensor satisfying a predefined condition when a health state of a user corresponds to a first state, control transmitting the state information to an external server through the communication circuitry, control receiving from the external server a symptom check result corresponding to the state information, set a health state of the user to a second state based on the symptom check result, and provide a user interface (UI) for user health management at least once until the health state of the user changes from the second state to the first state based on at least one of the state information and the symptom check result.

Abstract: An abdominal statistics system including a low profile rapidly deployable sensor element having an acoustic sensor and vibration actuator that can be conveniently attached to the abdomen of a patient. The system acquires acoustic signals as gastrointestinal (GI) sounds, processes these signals, and provides actionable data to patients and their providers.

Abstract: An information processing apparatus includes an acquisition unit, a specification unit, a determination unit, a generation unit, and a display control unit. The acquisition unit acquires a three-dimensional image containing at least a tubular structure. The specification unit specifies a first point inside the tubular structure and specifies a lesion outside the tubular structure in the three-dimensional image. The determination unit determines whether a blood vessel is present in a region between the first point and the lesion based on signal values of voxels of the three-dimensional image in the region between the first point and the lesion. The generation unit generates a two-dimensional image of the tubular structure viewed from the first point based on the three-dimensional image. The display control unit displays information indicating a region of the lesion on the two-dimensional image to be distinguishable in determining whether a blood vessel is present in the region.

Abstract: A CO2 detection chamber includes a gas inlet and a gas outlet. A CO2 sensor is housed in the CO2 detection chamber, where the sensor includes a reversible and selective pH-sensitive nanocomposite sensor element for CO2 detection, and a hydrophobic surface. A flowmeter, a thermistor and a humidity sensor operate to read flow and compensate for humidity conditions. A light source is coupled to receive signals from the CO2 sensor and respond to color changes in the sensor by transducing the color change into a light intensity change. A photodiode receives signals from the light source and responds to light intensity changes by transducing the light intensity changes into electronic signals representing varying degrees of light intensity. Data representing CO2 measurements is transmitted for display to a mobile device.

Abstract: Systems, delivery devices, and methods to treat to ablate, damage, or otherwise affect nerve tissue such that reinnervation is inhibited. The treatment systems are capable of delivering energy to nerve tissue in a target region such that at least a portion of the nerve tissue is replaced by scar tissue or otherwise altered to inhibit reinnervation in the target region.

Abstract: There is provided a method, apparatus, computer program product and wearable device for monitoring volumetric change of a lung during a breathing cycle by using an electronic signal. The method comprises: receiving by a receiver an electronic signal transmitted from a transmitter, wherein at least part of a path of the signal contours at least part of a chest wall of the lung; determining by the receiver measurements of an attribute of the signal received at the beginning and the end of a time interval during the breathing cycle; calculating by a processor a change in length of the signal path during the time interval based on the measurements of the attribute of the signal received at the beginning and the end of the time interval; and calculating by the processor a volumetric change during the time interval based on the change in signal path length.

Abstract: CPAP treatment apparatus is disclosed having a controllable positive airway pressure device. A sensor generates a signal representative of patient respiratory flow that is provided to a controller. The controller is operable to determine the occurrence of an apnea from a reduction in respiratory airflow below a threshold determined from long term ventilation. When an apnea or hypopnea has occurred the calculation of the threshold is suspended until the end of that event.

Abstract: Provided herein are systems, methods and devices for performing one or more titrations for oral appliance therapy. For example, a method for evaluating an outcome of oral appliance therapy in a subject is discussed herein. The method can include positioning an adjustable mandibular displacement device in an oral cavity of a subject and implementing an automatic titration protocol. The protocol can include controlling a protrusion level of the adjustable mandibular displacement device during a test period, monitoring physiological information from the subject during the test period, and analyzing the physiological information to evaluate the outcome of oral appliance therapy.

Abstract: An implantable pacing device for delivering ventricular pacing may be configured to intermittently and variably reduce the AV delay interval used in an atrial triggered pacing mode in a manner that simulates exercise. The device may be programmed to intermittently switch to and from a variably shortened AV delay mode according to defined entry and exit conditions.

Abstract: A method and apparatus for measuring endogenous CO concentration in exhaled alveolar air, comprises: proposing a method for injecting samples in small amounts, multiple times, intermittently, and establishing a CO concentration relationship between sample gas and gas in a measuring chamber; establishing a “concentration difference/electrical level difference” difference value fitting method, to obtain a fitted standard curve for a difference value between the sample gas and base gas; establishing an apparatus for measuring a CO concentration difference and a CO2 concentration difference between sample gas and base gas; proposing a method for compensating a measurement value for endogenous CO in exhaled alveolar air. The problem that the amount of sample gas in a breath test is small, and cannot completely replace the gas originally inside the measuring chamber, is solved. The effect of electrical level zero drift and residual CO of unknown concentration in cleaning gas is eliminated.

Abstract: The present invention relates to a method and a respiration device having a respiration unit for generating an airflow for the respiration and having a monitoring unit. The monitoring unit is used to detect a respiration parameter and to classify events in the respiration on the basis of monitoring of the respiration parameter. In this case, the monitoring unit is able and designed to carry out an event analysis to recognize an occurrence, which is characteristic for Cheyne-Stokes respiration, of chronologically successive events and for this purpose to ascertain the period length thereof and to compare them to one another and to register the presence of Cheyne-Stokes respiration when the compared period lengths each deviate by less than 40% from one another.

Abstract: A system and method for assessing treatment effects on obstructive sleep apnea are provided. The apparatus includes a bio-signal measurement unit, a combined index calculation unit, and a treatment response assessment unit. The bio-signal measurement unit measures each of the electrocardiogram and respiratory rhythm of a patient. The combined index calculation unit calculates a combined cardiac and respiratory index by combining the heart rate variability and respiratory rhythm signals measured by the bio-signal measurement unit. The treatment response assessment unit assesses a response of the patient to the treatment of obstructive sleep apnea.

Abstract: A device and a method for the analysis of the air exhaled by a subject in order to measure basal metabolism of the subject comprise a main line for a sampling flow of the air exhaled by a subject who breathes spontaneously or a subject undergoing assisted pulmonary ventilation. A mixing mini-chamber is provided for mixing a plurality of air sampling flows exhaled by the subject within a number of respiratory cycles. Sensors for sensing the oxygen concentration and the carbon dioxide concentration respectively measure the oxygen concentration and the carbon dioxide concentration within the air flow in the main line. The device further comprises an electronic control unit which processes signals from the sensors for obtaining a measurement of metabolism of the subject within a number of respiratory cycles.

Abstract: A feature implemented in a CPAP breathing therapy machine to determine if the patient is suffering from a flow limitation condition and if so, altering the operation of the CPAP machine to attempt to alleviate the condition.

Abstract: Systems and methods for stimulation of neurological tissue generate stimulation trains with temporal patterns of stimulation, in which the interval between electrical pulses (the inter-pulse intervals) changes or varies over time. Compared to conventional continuous, high rate pulse trains having regular (i.e., constant) inter-pulse intervals, the non-regular (i.e., not constant) pulse patterns or trains that embody features of the invention provide a lower average frequency.

Abstract: A nasal delivery device for and method of delivering substance to a nasal cavity of a subject, the delivery device comprising: a nosepiece for fitting to a nostril of a subject, wherein the nosepiece comprises a tip element which includes a delivery aperture from which substance is in use delivered into the nasal cavity, and the tip element is at least in part tapered such as to be inclined to a longitudinal axis of the nosepiece, with the delivery aperture extending both laterally across the tip element and along a longitudinal extent of the tip element; a nozzle through which substance is in use delivered, preferably substantially axially to a longitudinal axis of the nosepiece, to the respective nasal cavity; and a delivery unit for delivering substance through the nozzle of the nosepiece.

Abstract: A method and system for monitoring phrenic nerve function and preventing phrenic nerve injury during cardiac ablation. The system includes a pacing device operable to transmit stimulation energy to the phrenic nerve through target tissue proximate the phrenic nerve, a plurality of assessment electrodes operable to make comparisons between baseline, real-time, and predetermined threshold values for CMAP signal amplitude and amplitude over time. The processing device may be connected to an ablation console, and the processing device may interrupt or adjust an ablation procedure controlled by the ablation console and/or generate a system alert in response to one of these comparisons, if the comparison indicates phrenic nerve injury.

Abstract: A device provides respiratory treatment such as for sleep disordered breathing and other respiratory conditions in a discreet configuration to provide a minimally invasive system. The system may include a flow pressurizer apparatus configured to generate a pressurized flow of air through a small bore delivery conduit toward a patient interface. The system may further include a treatment compensator coupled with the fine bore delivery conduit. The treatment compensator may be configured at the patient interface to reduce pressure for patient inspiration. A processor may control adjustments to the pressure generated by the flow pressurizer apparatus.

Abstract: A system, method, and device to integrate electronic vapor devices and electronic communication devices.

Abstract: Devices, system, and methods generate expiratory flow-based pulmonary function data by processing a digital audio file of sound of a subject's forced expiratory maneuver. A mobile device configured to generate expiratory flow-based pulmonary function data includes a microphone, a processor, and a data storage device. The microphone is operable to convert sound of the subject's forced expiratory maneuver into a digital data file. The processor is operatively coupled with the microphone. The data storage device is operatively coupled with the processor and stores instructions that, when executed by the processor, cause the processor to process the digital data file to generate expiratory flow-based pulmonary function data for assessing pulmonary function of the subject. The sound of the subject's forced expiratory maneuver can be converted into the digital data file without contact between the subject's mouth and the mobile device.

Abstract: The method of performing multiple oral and nasal surgical procedures in the head and neck region provides a systematic procedure for the performance of multiple operations for correcting various ear, nose, and throat conditions that cause snoring and obstructive sleep apnea (OSA) in the patient. The method allows the surgeon to perform multiple operating procedures in the nose, mouth, and/or throat in a single operating session, due to the use of hemostatic sheet and gel treatments in lieu of suturing and post-operative nasal hemostatic packs that preclude nasal breathing. The various surgical implement kits allow the surgeon to select the appropriate kit according to the procedure(s) to be performed. The procedure(s) is/are selected in accordance with a specific customized treatment plan that is developed by the surgeon for the individual patient, which other surgeons involved in snoring or OSA surgery can comprehend.

Abstract: A computer-implemented method for assessing a level of dyspnea in a patient is provided. The method includes measuring physical activity of the patient over a period of time with an activity monitor to gather physical activity data; measuring respiration rate of the patient over the period of time with a respiration rate sensor to gather respiration rate data; administering a questionnaire to gather clinical information of the patient; and executing, on one or more computer processors, one or more computer program modules to determine a dyspnea value for the patient based on the respiration rate data, the physical activity data, and the clinical information of the patient. The dyspnea value is representative of the level of dyspnea in the patient.

Abstract: A method and a system for unobtrusively measuring a person's respiration, wherein at least two microphones positioned at either side of a person's head are utilized based on a distance of the persons head to the microphones and an identification of which microphone is in a line of sight and which is out of the line of site of the person's breathing as computed on the basis of images captured by a video camera.

Abstract: A ventilation analysis system comprising an interface module adapted to receive a carbon dioxide (CO2) signal and a breath flow dynamics signal, and control logic adapted to produce a ventilation indicator, based on a mutual analysis of the CO2 signal and the breath flow dynamics signal. The ventilation indicator may be, for example, an estimated CO2 waveform, an End-Tidal CO2 (ETCO2) value, and/or a minute CO2 value.

Abstract: Provided according to embodiments of the invention are methods of monitoring air obstruction in an individual that include obtaining at least one calibration photoplethysmography (PPG) signal stream from the individual while the individual spontaneously breathes through at least one resistor having a known resistance; using a processing device to determine changes in the at least one calibration PPG signal stream in response to an increase in resistance to the individual's breathing; obtaining a monitoring PPG signal stream from the individual during spontaneous breathing; and using the monitored PPG signal stream to determine a calibrated resistance value, and using the calibrated resistance value to determine a level of obstruction of the individual's breathing. Related devices are also provided herein.

Abstract: There is provided a method for dynamically determining a breath related parameter, which includes averaging a breath related parameter over a first period of time, calculating a breath related value over a second period of time and adapting the duration of the first period of time according to the calculated breath related value.

Abstract: The present teaching relates to surgical procedure assistance. In one example, a first volume of air inside a lung is obtained based on a first image of the lung captured prior to a surgical procedure. The lung has a first shape on the first image. A second volume of air deflated from the lung is determined based on a second image of the lung captured during the surgical procedure. A second shape of the lung is estimated based on the first shape of the lung and the first air volume inside the lung and second volume of air deflated from the lung. A surgical plan is updated based on the estimated second shape of the lung.

Abstract: Provided are systems, methods and/or electronic vapor devices configured to analyze matter of at least one of smoke, vapor or other material in order to at least one of analyze, classify, compare, validate, refute and catalog said matter, then reference conditions in order to send system alerts triggered by defined analytical parameters.

Abstract: A respiratory gas monitor testing system having a respiratory gas monitor coupled to a system for detecting a leak, wherein the system for detecting a leak has a flowmeter in fluid communication with both an inlet and an outlet of the respiratory gas monitor, with the exhaust of the flowmeter venting to atmosphere; a restriction valve, a sample pressure sensor, a flowmeter valve configured to allow the flowmeter to either measure sample flow rate or leak rate, a flow-smoothing buffer configured to improve flow measurement accuracy, and a system for simulating human breath; wherein the system for simulating human breath at elevated airway pressure has an air source, a calibration gas source, a breath simulation valve, a calibration gas valve, a sample pressure sensor, an air reservoir, a pressurized bottle with a pressure regulator and an orifice, and an air pump.

Abstract: Disclosed are methods, systems, and apparatuses for vapor cooling. The methods and systems can be used in conjunction with all vaping devices including e-cigarettes, hybrid communication device electronic vapor devices, robotic vapor devices, modified vapor devices “mods,” electronic vapor devices, and the like.

Abstract: Provided are systems, methods, and electronic vapor devices comprising a heating element casing designed to facilitate an eLiquid heating process while providing a vapor quality which yields a sensation of increased smoothness for a user.

Abstract: Provided are systems, methods and electronic vapor devices comprising a first container containing a first vaporizable liquid and a second container comprising a second vaporizable liquid. A vaporizer can be configured to vaporize at least the first vaporizable liquid and the second vaporizable liquid. Vaporizing the first vaporizable liquid produces a first vapor having a visible vapor cloud, and vaporizing the second vaporizable liquid produces a second vapor having a drastically reduced or invisible vapor cloud when compared to the first vapor.

Abstract: An electrical machine includes an exhaust fan and an exhaust port on which an optional device is mounted. The optional device includes a duct, an electric fan, and an air flow sensor. Through the duct, an exhaust gas from the exhaust port is guided. The electric fan draws in the exhaust gas flowing through the duct and discharges the exhaust gas into an atmosphere. The air flow sensor detects presence or absence of the exhaust gas flowing from the electrical machine. The air flow sensor includes an air path partitioned from an inside of the duct by a partition wall. The air path includes an exhaust gas and an exit port. The exhaust gas intake port includes an opening facing the exhaust gas. The exit port communicates with the atmosphere at a position outside the duct.

Abstract: A system and methods using tracheal sound intensity variations to screen patients suspected of obstructive sleep apnea during wakefulness. The system includes a mechanism positioning the patient and a sound input device attached to a recording device to receive breathing sound signals. A signal conditioning component amplifies and filters the breathing sound signals, and an analog to digital component digitizes the signals. A detecting component detects onsets of respiratory phases, and a separating component separates inspiratory sound signals and expiratory sound signals from the breathing sound signals. A segmenting component segments the inspiratory and expiratory phase signals into a short duration of overlapping windows, and a collection characteristic extraction component obtains characteristics from each window.

Abstract: The various embodiments herein relate to systems, devices, and methods for tracking abdominal orientation and activity for purposes of preventing or treating conditions of pregnancy or other types of medical conditions. In certain specific embodiments, the system, device, or method relates to identifying abdominal orientation risk values, calculating and updating a cumulative risk value, comparing the cumulative risk value to a threshold, and outputting a warning when the cumulative risk value crosses the threshold.

Abstract: A system filters received messages (e.g., unsolicited advertisements) to determine if they are appropriate for a user based on the non-static, constantly evolving, context of the user. The system can track the user's context by monitoring various environmental parameters, such as related to the user's physical, mental, computing and data environments, and can model the current context of the user based at least in part on the monitoring. The system selects a set of one or more filters to apply to incoming messages based on the user's context, and the selected filters can be updated as the user's context changes. Messages that survive the filters are then evaluated against the user's context to determine whether they should be presented immediately or stored for delayed presentation.

Abstract: Technologies for identifying sounds are disclosed. A sound identification device may capture sound data, and split the sound data into frames. The sound identification device may then determine an acoustic feature vector for each frame, and determine parameters based on how each acoustic feature varies over the duration of time corresponding to the frames. The sound identification device may then determine if the sound matches a pre-defined sound based on the parameters. In one embodiment, the sound identification device may be a baby monitor, and the pre-defined sound may be a baby crying.

Abstract: Accurate AR method for extracting respiratory rates directly from a pulse oximeter and accurate methods of extracting respiratory rates directly from a pulse oximeter under low signal-to-noise ratio (SNR) conditions.

Abstract: Described is a system including a sensor and a processing arrangement. The sensor measures data corresponding to a patient's breathing patterns. The processing arrangement analyzes the breathing patterns to determine whether the breathing patterns are indicative of a REM sleep state. In another embodiment, the processing arrangement analyzes the breathing patterns to determine whether the breathing patterns are indicative of one of the following states: (i) a wake state and (ii) a sleep state. In another embodiment, a neural network analyzes the data to determine whether the breathing patterns are indicative of one of the following states: (i) a REM sleep state, (ii) a wake state and (iii) a sleep state. In another embodiment, the processing arrangement analyzes the data to determine whether the breathing pattern is indicative of an arousal.

Abstract: Respiratory rate can be calculated from an acoustic input signal using time domain and frequency domain techniques. Confidence in the calculated respiratory rate can also be calculated using time domain and frequency domain techniques. Overall respiratory rate and confidence values can be obtained from the time and frequency domain calculations. The overall respiratory rate and confidence values can be output for presentation to a clinician.

Abstract: A bedding system uses machine vision to makes adjustments for comfort and/or support. In one aspect, a pressure mapping engine measures a two-dimensional pressure image of a sleeper on the bedding system while the sleeper is sleeping on the bedding system. A machine vision process analyzes the pressure image. A comfort and support engine adjusts a comfort and/or support of the bedding system based on the machine vision analysis.

Abstract: An apparatus for determining a respiratory condition, the apparatus includes: a signal acquirer which is configured to acquire a signal waveform corresponding to a respiratory flow of a subject; a differential calculator which is configured to acquire a differential waveform which is obtained by performing differentiation of the signal waveform; and a first determiner which is configured to determine that inspiratory flow limitation occurs in the subject, when the differential waveform satisfies a predetermined condition in a portion of the signal waveform, which corresponds to inspiration of the subject.