Abstract: 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.

Abstract: Oscillatory ventilator configured for oscillating at a plurality of specifically tuned sinusoidal frequencies simultaneously a ventilation gas for delivery to a lung region of a patient and a ventilator control system, in communication with the oscillatory ventilator, to control a sinusoidal waveform input for the oscillatory ventilator, wherein the sinusoidal waveform input comprises the plurality of specifically tuned sinusoidal frequencies each of which sinusoidal frequencies are below the acoustic range.

Abstract: The invention provides a method (10) for detecting a neural respiratory drive measure of a user. The method includes obtaining (100) an EMG signal and processing (200, 280) the EMG signal to produce a surrogate respiration signal and a processed EMG signal. Inhalations of the user are then detected (300) based on the surrogate respiration signal. The detected inhalations are then used in conjunction with the processed EMG signal to determine (400) a neural respiratory drive measure of the user.

Abstract: An intelligent ventilator system and operating method thereof are provided. The system includes a ventilator and an input system. The ventilator includes an alarm system, a monitoring system, a communication unit, and a ventilator control system, where the ventilator is configured to apply respiratory treatment to a patient. The input system is configured to input the patient's parameters and treatment requirements to realize recordings of original data of a designed treatment plan. The ventilator control system calculates target data needed by the patient and design the treatment plan, and to control the ventilator. The communication unit is configured for data communication between the input system and the ventilator control system to realize transfer of data from the input system to the ventilator control system. The monitoring system is configured for real-time monitoring of patients, and the alarm system is configured to alarm in time according to the patient's urgency.

Abstract: A system that enables remote adjustment of oxygen flow from an oxygen source includes a gas source device fluidly coupled to a gas source, a remote delivery device with an outlet for providing gas to a user and an inlet fluidly coupled to an outlet of the gas source device, wherein the gas source device has a control system. The control system determines a current control setting of the remote delivery device based on pneumatic feedback from the remote delivery device and modifies a pressure of gas flowing from the gas source device to the remote delivery device based on the current control setting of the remote delivery device, so that a target flow volume of supply gas associated with the current control setting is delivered to the inlet.

Abstract: Sensing airflow and delivering therapeutic gas to a patient. At least some of the example embodiments are methods including: titrating a patient with therapeutic gas during a period of time when a flow state of breathing orifices is in a first state, the titrating results in a prescription titration volume; and then delivering the prescription titration volume of therapeutic gas to the patient when the flow state of the breathing orifices is in a second state different than the first state, the delivering only to the breathing orifices open to flow.

Abstract: A respiratory monitoring system includes (10) a mechanical ventilator (12) configurable to perform a ventilation mode in that includes an inhalation gas delivery phase and provides extrinsic positive end-expiratory pressure (PEEP) at a PEEP level during an exhalation phase. A breathing tubing circuit (26) includes: a patient port (28), a gas inlet line (16) connected to supply gas from the mechanical ventilator to the patient port, a gas flow meter (30) connected to measure gas flow into lungs of the patient, and a pressure sensor (32) connected to measure gas pressure at the patient port. At least one processor (38) is programmed to: compute a proxy pressure comprising an integral of gas flow into the lungs measured by the gas flow meter; and trigger the inhalation gas delivery phase of the ventilation mode when the proxy pressure decreases below a trigger pressure threshold.

Abstract: A method for controlling oxygen mix for a single-limb non-invasive ventilator comprising a pressure controller, and both a blower and a pressurized oxygen source downstream of the blower, each comprising a controller and a flow valve controlling flow, comprising: (i) generating a flow trajectory; (ii) providing the generated flow trajectory to a pair of complimentary flow coupling filters comprising a blower flow coupling filter and an oxygen flow coupling filter; (iii) generating an output from each of the filters, comprising an input flow trajectory for the blower flow controller and an input flow trajectory for the oxygen flow controller; and (iv) adjusting, by the blower flow controller and/or oxygen flow controller based on the input flow trajectory, target pressure, and oxygen mix, the blower speed controller and/or the pressurized oxygen source proportional flow valve.

Abstract: A process and a signal processing unit determine a pneumatic parameter (Pmus) for the spontaneous breathing of a patient. The patient is ventilated mechanically by a ventilator. A lung-mechanical model (20) and a gradient model (22) are preset. The lung-mechanical model (20) describes a relationship between the pneumatic parameter (Pmus) as well as a volume flow signal (Vol?), a volume signal (Vol) and/or a respiratory signal (Sig), which can be measured. The gradient model (22) describes a value for the pneumatic parameter (Pmus) as a function of N chronologically earlier values of the pneumatic parameter (Pmus) or of a variable correlating with the pneumatic parameter (Pmus). N values for the correlating variable are determined at first. At least one additional value is subsequently determined for the pneumatic parameter (Pmus). N chronologically earlier values of the correlating variable, current signal values, the lung-mechanical model (20) and the gradient model (22) are used for this purpose.

Abstract: A ventilation system includes a breathing apparatus which provides mechanical ventilation to a patient. The breathing apparatus is configured to perform an automated full recruitment manoeuvre, FRM, comprising a recruitment phase and a PEEP titration phase. In the PEEP titration phase the breathing apparatus is configured to gradually decrease the level of PEEP and to deliver a number of breaths at each of a plurality of PEEP levels, monitor at least one parameter from which an optimal PEEP of the patient may be determined, predict whether the optimal PEEP will be possible to reliably determine later on during the PEEP titration phase, and automatically abort the FRM manoeuvre if it is predicted that it will not be possible to reliably determine the optimal PEEP.

Abstract: A system for determining a parameter of respiratory mechanics in the presence of an intrinsic positive end-expiratory pressure during a ventilator support of a patient is provided. The system includes a computer system that comprises one or more in physical processors programmed with computer program instructions which, when executed cause the computer system to: determine breath segmentation data from airway flow information of the patient and airway pressure information of the patient; and determine the parameter of respiratory mechanics in the presence of the intrinsic positive end-expiratory pressure using the determined breath segmentation data. The parameter of respiratory mechanics includes one or more of the following: respiratory resistance, respiratory elastance, respiratory compliance, the intrinsic positive end-expiratory pressure, a pressure inside the alveoli, and an equivalent pressure generated by the respiratory muscles of the patient.

Abstract: Embodiments of a method and system for improving sleep characterization and/or a sleeping-related disorder for a user associated with a sleep session can include receiving a log of use dataset corresponding to user digital communication behavior at a mobile device, the log of use dataset associated with the sleep session; receiving a supplementary dataset characterizing activity of the user and/or mobile device, the supplementary dataset associated with the sleep session; characterizing a sleep-related parameter for the user based on at least one of the log of use dataset and the supplementary dataset; determining a sleep care plan for the user based on the sleep-related parameter, the sleep care plan including a therapeutic intervention; and promoting a therapeutic intervention to the user according to the sleep care plan.

Abstract: A ventilator with integrated breathing air humidifier has at least two defined air pathways provided in the breathing air humidifier. The breathing air humidifier is installed and fixed on a horizontal surface of the ventilator. The breathing air humidifier comprises at least a top part and a bottom part, a water reservoir being provided in the bottom part, wherein the top part cannot be removed from the bottom part when the unit is in at least one operating mode. The ventilator may have an air humidifier with at least one water reservoir, and at least one filling device for the water reservoir in the breathing air humidifier, wherein the filing device can be operated with one hand and/or opened with one hand.

Abstract: Assessing the sleep quality of a user in association with an electronic device with one or more physiological sensors includes detecting an attempt by the user to fall asleep, and collecting physiological information associated with the user. The disclosed method of assessing sleep quality may include determining respective values for one or more sleep quality metrics, including a first set of sleep quality metrics associated with sleep quality of a plurality of users, and a second set of sleep quality metrics associated with historical sleep quality of the user, based at least in part on the collected physiological information and at least one wakeful resting heart rate of the user, and determining a unified score for sleep quality of the user, based at least in part on the respective values of the one or more sleep quality metrics.

Abstract: Methods and apparatus for administering oxygen therapy, and particularly high-flow oxygen therapy is disclosed herein. A respiratory monitoring system may non-invasively determine average peak inspiratory flow rate of a patient based on biofeedback response received from the patient. Medical air, oxygen, or a combination of both may be delivered to the patient at a flow rate equal to greater than the determined average peak inspiratory flow rate of the patient to meet or exceed inspiratory demand of the patient. Fraction of oxygen inspired by the patient may be determined based on the average peak inspiratory flow rate and may be adjusted through high-flow oxygen therapy meeting inspiratory demand to prevent entrainment of ambient air or through low-flow oxygen therapy by accounting for entrainment of ambient air based on the average peak inspiratory flow rate to address medical needs of the patient.

Abstract: A data processing method and device based on a positive pressure ventilation therapy machine is described. The method comprises: acquiring a current operating parameter and a current pressure value of a draught fan in the positive pressure ventilation therapy machine; finding a target relational expression corresponding to the current pressure value in a preset list according to the current pressure value, wherein the preset list comprises a plurality of pressure values and relational expressions corresponding to the plurality of pressure values, and each of the relational expressions corresponding to the plurality of pressure values is a relational expression between operating parameters of the draught fan and a gas flow output by the positive pressure ventilation therapy machine; and determining a current gas flow output by the positive pressure ventilation therapy machine according to the current operating parameter and the target relational expression.

Abstract: A respirator mask that includes a body, a nasal interface, and a mouthpiece. The body defines an exterior surface and an interior space. The mouthpiece includes an inner channel that is insertable into a human mouth, wherein the inner channel extends outward from the exterior surface of the body and defines an opening into the interior space. The nasal interface includes a recessed portion that is recessed into the body and is configured to receive at least part of a human nose. The nasal interface further includes a pair of nozzles, wherein each nozzle of the pair of nozzles is insertable into a nostril of a wearer and defines an opening into the interior space.

Abstract: A CPAP apparatus according to the present disclosure includes a housing, a hose whose one end communicates with a connection portion, a fan configured to expel air flowing in from an intake port, from another end of the hose, a motor and a motor driving unit configured to rotationally drive the fan, a control unit configured to control the motor driving unit, and a flow rate sensor. The control unit includes a command generation unit configured to generate a command value of a rotation number of the fan such that a pressure to be expelled from the other end of the hose becomes a target pressure, and a command correction unit configured to correct the command value based on a flow rate value obtained by the flow rate sensor.

Abstract: Devices and methods for delivering air to a patient are provided. A device includes a first portion having a first airflow inlet and a sensor configured to sense airflow, the first portion defining a first airflow path, and a second portion comprising a second airflow inlet, an impeller, and an outlet for communicating airflow to a patient, the second portion defining a second airflow path. The device includes means for coupling the first portion and the second portion, such that the sensor sensing airflow in the first portion causes corresponding movement of the impeller, wherein the impeller is configured to impel air through the second airflow inlet and out of the outlet to the patient, upon movement of the impeller.

Abstract: A method may be provided to operate a surgical robotic system including a robotic arm configured to position a surgical end-effector with respect to an anatomical location of a patient. Position information may be received where the position information is generated using a sensor system remote from the robotic arm and remote from the patient. The position information may include position information relating to a tracking device affixed to the patient and position information relating to the surgical end-effector. The robotic arm may be controlled to move the surgical end-effector to a target trajectory relative to the anatomical location of the patient based on the position information generated using the sensor system.

Abstract: The invention relates to a device for operating a breathing apparatus with a touch-sensitive graphical display and just one other mechanical operating element, wherein the basic treatment can be started by pressing down the mechanical operating element, and additional adjustments are made using the touch-sensitive graphical display.

Abstract: A respiratory treatment apparatus generates an indication of inspiration or expiration based on a measure of motor current of a flow generator. In an example, first and second current signals are derived from the measurement. The first derived current signal may be a long term measure or average of current and the second derived current signal may be a short term measure or average of current. A processor 120 determines an indication of inspiration or expiration as a function of the first and second derived current signals. The function of the first derived current signal and the second derived current signal may be a comparison of the derived current signals. The derived signals may be determined by filtering. The indication of inspiration or expiration may serve as a trigger or cycle control for changing treatment pressure in synchrony with patient respiration without measured signals from pressure, flow or speed sensors.

Abstract: A method of detecting stroke in a patient receiving a pressure support therapy includes: receiving data from one or more sensors structured to gather data related to patient respiration while receiving pressure support therapy from an airflow generator via a patient circuit; analyzing the data from the one or more sensors while pressure support therapy is provided to the patient; determining that the analyzed data from the one or more sensors is indicative of a patient experiencing respiratory changes indicative of a stroke; and responsive to said determining, triggering at least one alarm.

Abstract: The embodied invention is a new inspiration/expiration ventilator flow design, with a constant inspiration flow and intermittent-concurrent expiratory flow based on lung pressure setpoints. This mode is possible by using a new dual lumen tube inserted into a patient Trachea. Additionally, the control provides support for patient initiated breathing which is initiated by a lung pressure drop. This control provides continuous and gentle recruitment of lung alveoli.

Abstract: An apparatus and method for employing data from the person and from the environment where the person is situated facilitate the detection and prediction of severity of high altitude-induced Sleep Disordered Breathing (SDB, and specifically Central Sleep Apnea (CSA)). Longitudinal tracking of local barometric pressure and severity of SDB symptoms (objective or subjective or both) allow for prediction of occurrence of SDB (per altitude). Some of all of the data can be obtained from one or more wearable devices that may be worn by the person. Additionally, personalized mapping for dosing of medication (e.g. acetazolamide, low-flow oxygen therapy) to treat high altitude-induced SDB are provided, with recommended dosing provided to the person per altitude.

Abstract: The present invention provides clinical decision support that can be used with non-portable and portable systems when delivering and/or monitoring delivery of a therapeutic gas comprising nitric oxide to a patient. Further, clinical decision support can be used with non-portable and portable systems during delivery and/or monitoring of delivery of therapeutic gas when nebulized drugs may and/or may not be being delivered to a patient (e.g., when nebulizers are delivered upstream in the inspiratory limb of the breathing circuit, into a breathing gas delivery system, etc.).

Abstract: A continuous positive airway pressure (CPAP) apparatus includes: a first unit including a first housing provided with a first flow path that connects a first inlet port and a first outlet port and in which an air blower is provided; and a second unit including a second housing provided with a second flow path that connects a second inlet port and a second outlet port. The first flow path between the first inlet port and the air blower includes a first silencer. The second flow path includes a second silencer. In a first use state where the second unit is attached to the first unit, the second outlet port is connected to the first inlet port. In a second use state where the second unit is not attached to the first unit, the first inlet port is opened to the outside.

Abstract: A method for controlling operation of a CPAP apparatus. The apparatus has a blower, a patient interface, an air delivery conduit for delivering air from the blower to the patient interface, a sensor for determining the pressure in the patient interface, and a control mechanism that causes air to be delivered at a desired pressure to the patient interface and that detects transitions between inhalation and exhalation of a respiratory cycle of a patient in order to synchronise the blower output with the patient's efforts. In one form the CPAP apparatus provides pressure in accordance with a bi-level waveform with at least one characterising parameter of the waveform being automatically adjusted in accordance with indications of sleep disordered breathing. The indications of sleep disordered breathing can be one or more of snoring, apnea, hypopnea, and flow limitation.

Abstract: Provided is an HFNC system, including at least one first sensor disposed on a first housing, a compensating device disposed on a second housing and a the controller communicatively connected with the at least one first sensor and the compensating device respectively; where the at least one first sensor is configured to collect first sensing data, and send the first sensing data to the controller; the controller is configured to receive the first sensing data, generate a first driving signal according to the first sensing data, and send the first driving signal to the compensating device; and the compensating device is configured to receive the first driving signal, where the first driving signal is used to cause vibration of the compensating device according to the first driving signal, vibration of the second housing caused by vibration of the first housing is compensated by the vibration of the compensating device.

Abstract: Apparatus and methods are described including using a sensor to monitor a sleeping subject and generate a signal in response to the monitoring. A control unit is used to accept an input indicative of a person desiring to perform an activity that is potentially disturbing to the sleep of the subject, analyze the sensor signal, in response to the analyzing, identify a time during which the activity is likely to be less disturbing to the sleep of the subject, relative to another time, and generate a notification indicating a suitability of performing the activity at the identified time. Other applications are also described.

Abstract: The invention relates to an apparatus and a method for controlling a ventilator by means of a detection unit for control commands, wherein the detection unit detects control commands of a user in a detection region of the detection unit, the detection unit comprising at least one sensor for control commands, a memory, an apparatus for producing digital control commands and an interface for coupling to the ventilator and for transmitting the control commands to the ventilator.

Abstract: A system, wearable device and management device provided for predicting a flashover event. According to one aspect of the disclosure, a wearable device for predicting a flashover event is provided. The wearable device includes at least one thermal sensor configured to generate thermal data associated with an environment, and processing circuitry configured to: determine a risk of ignition of at least one combustible gas in the environment based on the thermal data, and trigger at least one action based on the determined risk of ignition.

Abstract: Approaches described herein can capture an audio signal using at least one microphone while a user of an electronic device is determined to be asleep. At least one audio frame can be determined from the audio signal. The at least one audio frame represents a spectrum of frequencies detected by the at least one microphone over some period of time. One or more sounds associated with the at least one audio frame can be determined. Sleep-related information can be generated. The information identifies the one or more sounds as potential sources of sleep disruption.

Abstract: A system includes a respirator, a sensor including a sensing element, and a reader configured to be in wireless communication with the sensor. The sensor is positioned substantially within an interior gas space of the respirator.

Abstract: The present disclosure provides to graphical user interfaces for controlling a flow therapy apparatus. The graphical user interface can provide a display of flow therapy treatment information and indicators of a patient's health. The graphical user interface can be configured to display the information associated with the patient on one or more user interface screens.

Abstract: An apparatus, such as a pressure support ventilator or respiratory monitor, provides operations for a patient, such a patient with heart failure, Chronic Obstructive Pulmonary Disease or other respiratory insufficiency. In some embodiments, the apparatus may detect a respiratory condition, such as a decompensation event and/or exacerbation event, from respiratory parameters. A clinical alert message may be transmitted or displayed for a physician based on the results of query presented to the patient in response to an analysis of the one or more respiratory parameters. In some embodiments, the apparatus generates a potential relapse indicator that may provide a prediction of a risk of an oncoming clinical event such as for evaluating whether to release the patient from a hospital.

Abstract: A method, system and computer-readable medium are provided for weaning patients from ventilation, the method including the steps of receiving infusion and ventilation information, and determining whether to initiate termination of the ventilation. The method further including determining whether a timing of an extubation was performed according to the rules and protocols, and providing a notification to a client device regarding the timing of the extubation.

Abstract: A process and unit for determining an estimate for a respiratory signal. Measured values are received, and a sum signal is generated, which is a superimposition of the respiratory signal to a cardiogenic signal. The unit detects heartbeats, and a respective heartbeat time period for each. An intermediate signal is calculated by compensating the influence of the cardiac activity on the sum signal. The unit determines an attenuation signal, which is an indicator of the average time curve of the contribution of the cardiogenic signal to the intermediate signal in a predefined reference heartbeat time period. An intermediate signal section is generated as a section of the intermediate signal in a heartbeat time period and intermediate signal sections are mapped to the reference heartbeat time period. The estimated respiratory signal is calculated with the use of the mapped intermediate signal sections and of the attenuation signal.

Abstract: A computer implemented method is disclosed for providing adaptive control of a gas mixture for delivery to a patient via a separate external gas blender system. The computer implemented method includes receiving first SpO2 data from a regional oximeter via a regional oximeter interface; determining first PaO2 data using a first lookup table derived from a first sigmoid shaped oxyhemoglobin dissociation curve; determining a first gas mixture value using the first PaO2 data; and transmitting first adaptive feedback control data including the first gas mixture value to the separate external gas blender system via a gas blender interface.

Abstract: Systems, methods, and/or apparatuses for acclimatizing a user to positive airway pressure (PAP) therapy are provided. Generally, a sub-therapeutic treatment pressure is provided initially. It may be ramped up to a full treatment pressure over the course of one or more therapy sessions. The pressure level may be ramped up based on, for example, sleep state, sleep phase, patient compliance with types of treatment (e.g. bilevel vs. CPAP, etc.), clinician input (either at the site, remotely, via pre-programmed smartcards, etc.), etc. Such techniques may be used alone or in combination.

Abstract: The present disclosure pertains to a system and method for monitoring and for facilitating pulmonary and systemic hemodynamics in the treatment and/or prevention of cardiac arrhythmias or structural cardiac changes, caused by altered preload. The system comprises: a pressure generator; a first sensor configured to generate output signals conveying information related to venous blood accumulation during cardiac preload in the subject; a second sensor configured to generate output signals conveying information related to systemic arterial circulation in the subject; and one or more hardware processors configured by machine-readable instructions to control the pressure generator to adjust the pressure levels of the flow of breathable gas during one or both of inhalation and exhalation to facilitate the pulmonary and systemic circulation based on the output signals from the first sensor and the second sensor.

Abstract: In one embodiment, a method for accurate leak estimation in a flow generation system includes measuring a total flow through the flow generation system, measuring a pressure in in the primary flow circuit of the flow generation system, determining when the measured pressure is within a predetermined threshold of EPAP, and calculating an intentional leak flowrate and an unintentional leak flowrate based on the relationship QFS(t)=QIL(t)+QUL(t) when the measured pressure is within the predetermined threshold. In another embodiment, a flow generation system includes in one embodiment an airflow generator connected in-line to a flow sensor, a pressure sensor and a patient interface connection by a first gas flow circuit, and a controller electrically coupled to the airflow generator, the flow sensor and the pressure sensor.

Abstract: In an embodiment, a method is described. The method comprises obtaining an indication of a speech pattern of a subject and using the indication to determine a predicted time of inspiration by the subject. A machine learning model is used for predicting the relationship between the speech pattern and a breathing pattern of the subject. The machine learning model can then be used to determine the predicted time of inspiration by the subject. The method further comprises controlling delivery of gas to the subject based on the predicted time of inspiration by the subject.

Abstract: Systems and methods for novel ventilation that allows the ventilator to detect a patient intention to cycle exhalation are provided. Further, systems and methods for cycling exhalation based on a muscle pressure are provided.

Abstract: This disclosure is directed to devices, systems, and techniques for monitoring a patient condition. In some examples, a medical device system includes a medical device comprising a set of sensors. Additionally, the medical device system includes processing circuitry configured to identify, based on at least one signal of the set of signals, a time of an event corresponding to the patient and set a time window based on the time of the event. Additionally, the processing circuitry is configured to save, to a fall risk database in a memory, a set of data including one or more signals of the set of signals so that the fall risk database may be analyzed in order to determine a fall risk score corresponding to the patient, wherein the set of data corresponds to the time window.

Abstract: A method of acclimatizing a patient to provide continuous positive airway pressure (CPAP) therapy, including operating a device for treating sleep disordered breathing (SDB). The device provides continuous positive airway pressure to the patient during sleep via a mask configured to provide a seal with respect to airways of the patient. The method comprises applying full therapeutic pressure during a first session, monitoring a mask pressure during application of the full therapeutic pressure, calculating a difference between the full therapeutic pressure and the mask pressure, comparing the difference to a threshold representing an acceptable level of leak, generating a first signal in response to said comparing, and in response to said first signal indicating a fault in the seal, decreasing an applied pressure to below the full therapeutic pressure during the first session in order to improve the seal of the mask against the patient's face.

Abstract: A system and method for recording healthcare information of an individual under care without deleting data, includes a device for capturing person centered data and transmitting an identification signal, a memory for storing device rules, a buffer, a database; and a processor. The processor receives the signal and data, and retrieves the rules from the memory. Based on the rules, the processor determines whether the data is to be stored in the database or the buffer, and based on the data content, it determines the device location, the data recordation time, whether the individual is identified, and the individual's activity, and based on the rules and the location, time, individual identification, and activity, it determines whether the data is to be stored in the database or eliminated from the buffer. The person-centered data may include goal, outcome, medication error data, non-person centered public data, or protected health information (PHI).

Abstract: The systems and methods provide for novel a triggering mode that allows the patient to trigger or initiate the delivery of a breath during ventilation on a ventilator. Further, the systems and methods provide for triggering ventilation utilizing a statistical trigger mode. Additionally, the systems and methods provide for analyzing and/or displaying information related to a potential change in a triggering threshold for a currently utilized breath type.

Abstract: Methods and apparatus provide automated circuit disconnection monitoring such as for a respiratory apparatus or system. Disconnection of a patient circuit, including a patient interface and air delivery circuit, may be detected and a message or alarm activated. In some versions, detecting occurrences of circuit disconnection event(s), such as by a processor, may be based on an instantaneous disconnection parameter as a function of a disconnection setting. The disconnection setting may be determined based on patient circuit type. The instantaneous disconnection parameter may be determined from detected pressure and flow rate, and may be, for example, a conductance value or an impedance value. Disconnection events may be qualified by one or more detected respiratory indicators.

Abstract: A breathing air supply system (200) is configured to be carried by a person (300) and includes a breathing air supply device (130), a fastening device (1) for the breathing air supply device (130) and a vital parameter sensor (30.1). The vital parameter sensor (30.1) is mounted in or at a back section (22) belonging to a fastening section (20) of the fastening device (1). The vital parameter sensor (30.1) is configured to contactlessly measure a vital parameter of a user (300) of the breathing air supply system (200).