A system and method includes (i) providing patient data stored in a data repository, (ii) applying a first patient identification algorithm to the patient data to identify an initial group of individuals associated with select physical and health characteristics, (iii) applying a second patient identification algorithm to the patient data associated with the initial group of individuals to identify a narrower subgroup associated with select behavioral characteristics, and (iv) generating patient identifiable information from the patient data to allow for notification. The identification of the initial group is based on a determined likelihood of obstructive sleep apnea (OSA) for individuals meeting or exceeding a first threshold criteria. The identification of the narrower group is based on a determined likelihood of long-term adherence to OSA treatment for individuals meeting or exceeding a second threshold criteria. The notification is of designated entities that one or more of the individuals in the narrower subgroup are preferred individuals for OSA.
G16H 50/20 - TIC spécialement adaptées au diagnostic médical, à la simulation médicale ou à l’extraction de données médicalesTIC spécialement adaptées à la détection, au suivi ou à la modélisation d’épidémies ou de pandémies pour le diagnostic assisté par ordinateur, p. ex. basé sur des systèmes experts médicaux
Methods and apparatus provide communications among respiratory therapy device ("TD"), server and intermediary (e.g., a control device ("CTLD") for the therapy device) to improve security. More secure communication channel(s) may be established using shared secrets derived with different channels. The communications may include transmitting therapy data from TD to server for authentication. The CTLD may receive the data and a nonce from a server. The CTLD receives from the TD a signing key dependent on the nonce and a secret shared by TD and server. The CTLD generates an authorisation code with received therapy data and the key for authentication of the data by the server upon its receipt of the code and data. The server computes (1) a key from the nonce and the secret known to TD, and (2) another authorisation code from received therapy data and the key. Data authentication may involve comparing received and computed codes.
A respiratory valve, such as a positive end expiratory pressure valve, permits pressure control for respiratory apparatus such as a ventilator or positive airway pressure device. The valve may include a flexible gas passage cover. The cover may be configured with a first side surface to operatively block and open an aperture of the gas passage at a valve seat to respectively prevent and permit gas flow through the aperture defined by the valve seat. The cover may include a second side surface opposite the first surface. The second surface may include at least one drop section forming a reduction in thickness of the cover between the first surface and the second surface. The first surface may include a coating to reduce friction of a membrane material of the first surface. The rim of the valve seat may comprise a variation in height relative the flexible cover.
A respiratory therapy device generates a flow of breathable gas for therapy. The apparatus may include a flow generator in a housing to generate the breathable gas flow. The flow generator may have an operating voltage for such operations. The device may include a battery pack that is engageable with the housing. The battery pack may be configured to power the flow generator and may include a stand-by circuit configured to switch between stand-by and operating modes. The stand-by circuit may be configured to provide a stand-by operations voltage while in the stand-by mode that is less than an operating voltage of the flow generator and may be configured to detect current demand of the flow generator with the stand-by operations voltage while in stand-by mode such as for enabling an increase voltage from the battery pack to produce the operating voltage in the operating mode for the flow generator.
A respiratory polygraphy system comprising a plurality of sensors and a processor configured to perform method or process. The sensors include a thoracic movement sensor configured to generate a signal representing thoracic movement of a patient, a nasal pressure transducer configured to generate a signal representing nasal flow rate of the patient, and a pulse oximeter configured to generate a signal representing oxygen saturation of the patient. The system further comprises a memory configured to store channel data representing the thoracic movement signal, the nasal flow rate signal, and the oxygen saturation signal. The processor is configured to carry out a method of extracting one or more Cheyne-Stokes respiration (CSR) features from the stored signals. The method comprises detecting apnea events using the nasal flow rate signal; detecting central apneas among the detected apnea events using the thoracic movement signal; detecting hypopneas using the nasal flow rate signal and the oxygen saturation signal; detecting hyperpneas from the detected central apneas and hypopneas and the nasal flow rate signal; detecting CSR cycles from the detected hyperpneas, central apneas, and hypopneas; and extracting the one or more CSR features from the detected CSR cycles. In addition to the system and method, a device comprising a processor and memory for implementing the method is provided.
A seal-forming structure for a patient interface may include a patient-contacting surface configured to engage the patient's facial skin to form a seal; a posterior opening formed in the patient-contacting surface, the posterior opening configured to provide the flow of air at said therapeutic pressure to the patient's nares; and a support structure extending from the patient contacting surface to an interior surface of the seal-forming structure, the support structure and the interior surface forming a continuous loop, wherein the patient interface is configured to allow the patient to breath from ambient through their mouth in the absence of a flow of pressurised air through the plenum chamber inlet port, or the patient interface is configured to leave the patient's mouth uncovered.
Methods and apparatus infer or indicate sleep stage(s) of a patient from a respiratory flow rate signal of the patient. The method may include applying a plurality of detection pathways to a signal representing a respiratory flow rate of the patient, wherein each detection pathway is configured to generate start events and end events indicating start times and end times of episodes respectively of a corresponding sleep stage, wherein each start event and each end event has a priority; and combining the start events and end events based on their priorities to produce an indication of the sleep stage of the patient. The apparatus may include a sensor configured to generate a signal representing a property of a flow of air within a patient interface; and a processor configured to implement a method of inferring a sleep stage of the patient from the signal.
Aspects of the present technology comprise an inflatable positioning and stabilising structure for a patient interface for delivery of a flow of pressurised air to an entrance of a patient's airways. The positioning and stabilising structure is structured to maintain a seal at the entrance to the patient's airways and may comprise at least one gas delivery tube to deliver the flow of air to the entrance of a patient's airways via a seal-forming structure, an adjustment mechanism to enable dimensional adjustment of the positioning and stabilising structure, and a bias mechanism to impart a biasing force upon the adjustment mechanism and urge the seal-forming structure towards the entrance of the patient's airways. The adjustment mechanism may be positioned out of contact with a patient's face. The patient interface comprises a connection port to fluidly connect with a supply of pressurised air and being located proximal a top, side or rear portion of a patient's head, seal-forming structure to seal with an area surrounding the entrance to the patient's airways.
Aspects of the present technology comprise a positioning and stabilising structure to hold a seal-forming structure in a therapeutically effective position on a head of a patient. The positioning and stabilising structure may comprise at least one gas delivery tube to deliver the flow of air to the entrance of a patient's airways via the seal-forming structure. The at least one gas delivery tube may be constructed and arranged to contact, in use, at least a region of the patient's head superior to an otobasion superior of the patient's head. The positioning and stabilising structure may comprise an adjustment mechanism for adjustment of a length of the at least one gas delivery tube to enable the positioning and stabilising structure to fit different size heads. The positioning and stabilising structure may comprise a bias mechanism to impart a biasing force along at least a part of a length of the at least one gas delivery tube to urge the seal-forming structure towards the entrance of the patient's airways in use.
A patient interface includes a frame including a textile material and a seal- forming structure provided to the frame. The seal-forming structure includes a foam material and/or a foam and textile material configured and arranged to form a seal with the patient's nose and/or mouth.
Systems and methods permit generation of a digital scan of a user's face such as for obtaining of a patient respiratory mask, or component(s) thereof, based on the digital scan. The method may include: receiving video data comprising a plurality of video frames of the user's face taken from a plurality of angles relative to the user's face, generating a three-dimensional representation of a surface of the user's face based on the plurality of video frames, receiving scale estimation data associated with the received video data, the scale estimation data indicative of a relative size of the user's face, and scaling the digital three-dimensional representation of the user's face based on the scale estimation data. In some aspects, the scale estimation data may be derived from motion information collected by the same device that collects the scan of the user's face.
A61M 16/06 - Masques respiratoires ou pour l'anesthésie
G06K 9/00 - Méthodes ou dispositions pour la lecture ou la reconnaissance de caractères imprimés ou écrits ou pour la reconnaissance de formes, p.ex. d'empreintes digitales
G06N 99/00 - Matière non prévue dans les autres groupes de la présente sous-classe
G06K 9/42 - Normalisation des dimensions de la forme
A61B 5/00 - Mesure servant à établir un diagnostic Identification des individus
A61B 5/107 - Mesure de dimensions corporelles, p. ex. la taille du corps entier ou de parties de celui-ci
A61M 16/00 - Dispositifs pour agir sur le système respiratoire des patients par un traitement au gaz, p. ex. ventilateursTubes trachéaux
G16H 50/50 - TIC spécialement adaptées au diagnostic médical, à la simulation médicale ou à l’extraction de données médicalesTIC spécialement adaptées à la détection, au suivi ou à la modélisation d’épidémies ou de pandémies pour la simulation ou la modélisation des troubles médicaux
G06F 19/00 - Équipement ou méthodes de traitement de données ou de calcul numérique, spécialement adaptés à des applications spécifiques (spécialement adaptés à des fonctions spécifiques G06F 17/00;systèmes ou méthodes de traitement de données spécialement adaptés à des fins administratives, commerciales, financières, de gestion, de surveillance ou de prévision G06Q;informatique médicale G16H)
G06N 3/00 - Agencements informatiques fondés sur des modèles biologiques
A61B 5/08 - Dispositifs de mesure pour examiner les organes respiratoires
G16H 10/60 - TIC spécialement adaptées au maniement ou au traitement des données médicales ou de soins de santé relatives aux patients pour des données spécifiques de patients, p. ex. pour des dossiers électroniques de patients
Apparatus and methods provide control for generation of a flow of air to a patient's airways for different respiratory therapies. The pressure and a flow rate may be simultaneously controlled so as to provide a pressure therapy and a flow therapy. The system may include one or more flow generators, in which the control of the pressure and flow rate may include altering the output of one or more of the flow generators and/or an optional adjustable vent. The pressure and flow rate may each be held at a constant. One or both of the pressure and flow rate may also vary in accordance with a desired therapy. The air may be provided via a patient interface that includes a vent to atmosphere, which may be the adjustable vent. The vent may be actuated by a controller to implement the simultaneous control of pressure and flow rate of the air.
A sensor may be configured to detect periodic limb movement in a sleeping person. The sensor may be a non-contact sensor, such as a radar motion sensor. The sensor may include a radio frequency transmitter for emitting radio frequency signals toward the person. The sensor may include a receiver for receiving reflected ones of the emitted radio frequency signals and processing the reflected ones of the emitted radio frequency signals to produce motion signal(s). A processor, such as one integrated with or coupled to the sensor, may evaluate the motion signals, such as in-phase and quadrature motion signals, and generate an indicator to identify occurrence of periodic limb movement in the motion signals based on the evaluation of the motion signals.
A61B 5/05 - Détection, mesure ou enregistrement pour établir un diagnostic au moyen de courants électriques ou de champs magnétiquesMesure utilisant des micro-ondes ou des ondes radio
A61B 5/11 - Mesure du mouvement du corps entier ou de parties de celui-ci, p. ex. tremblement de la tête ou des mains ou mobilité d'un membre
A61B 5/00 - Mesure servant à établir un diagnostic Identification des individus
A61B 5/113 - Mesure du mouvement du corps entier ou de parties de celui-ci, p. ex. tremblement de la tête ou des mains ou mobilité d'un membre se produisant au cours de la respiration
An air conduit for a respiratory therapy device comprises a first end, a second end, and a tube portion, wherein the tube portion comprises a tube wall and an auxiliary structure, such as a rib. The air conduit may deliver a flow of air from a respiratory therapy device or a humidifier to a patient interface. The air conduit may comprise a plurality of auxiliary structures, some of which may consist of a polymeric material, and some of which may comprise a polymeric material and an electrical conductor. An auxiliary structure may be a helical rib extending across a length of the tube portion.
A fluid connector between patient interface and a respiratory therapy device and a vent adaptor for a respiratory pressure therapy system. The fluid connector comprising two parts, the first of which includes a seal and a latching portion and the second a complementary latching portion configured to engage the former to provide a fluid flow patch between the two parts. The vent adaptor comprising a vent assembly comprising a vent housing and an annular plate including an array of holes to discharge the pressurised gas to atmosphere and an deformable membrane which presses against the annular plate.
A61M 16/20 - Valves spécialement adaptées aux dispositifs respiratoires médicaux
F16K 7/12 - Dispositifs d'obturation à diaphragme, p. ex. dont un élément est déformé, sans être déplacé entièrement, pour fermer l'ouverture à diaphragme plat, en forme d'assiette ou en forme de bol
A61M 16/06 - Masques respiratoires ou pour l'anesthésie
16.
PATIENT INTERFACE WITH FOAM SEAL-FORMING STRUCTURE
A cushion assembly for a patient interface includes a foam cushion and an elastomeric support portion configured to support the foam cushion. The foam cushion is more compliant in a nasal bridge region than other regions of the cushion assembly, the nasal bridge region being a region configured to engage the patient's nasal bridge when the cushion assembly is mounted on the patient's face. The elastomeric support portion may also provide varying levels of support to the foam cushion in different regions of the cushion assembly.
A cushion assembly for a patient interface includes an elastomeric seal-forming portion that includes a dome-shaped superior region (3180A); a saddle-shaped inferior region (3180G); a first support region (3180E) having a consistent wall thickness, preferably 2 mm, that is greater than the wall thickness of the dome-shaped superior and the saddle-shaped inferior regions, preferably 0.3 mm; a second support region (3180D) having a varied wall thickness and is bounded by the first support region (3180E) on a proximal side and having a distal side opposite the proximal side. In claim 1, the wall thickness in the second support region (3180D) increases from the distal side to the proximal side, preferably 2 to 1.3 mm. Preferably, wall thickness of a third support region (3180F) is 1.3 mm, a compliant region (3180C) is 0.85 mm and a flap (3180H) is 0.5 mm. Preferably flap (3180H) moves independently of a loop connection (3110).
A patient interface includes a frame assembly (16100) including connectors operatively attachable to headgear, a cushion assembly (16175) including a shell (161800) and a seal-forming structure (16200) structured to form a seal with the patient's nose and/or mouth, and an air delivery connector (16600). The cushion assembly and air delivery connector are structured to releasably connect to the frame assembly independently of each other. A static face seal and separate static diametric seal between the shell (161800) and frame (16100). A dynamic face seal and separate dynamic diametric seal between the air delivery connector (16600) and frame (16100). Separate claims (fig 6) to a frame assembly (16100) with upper headgear connector arms (16134) including at least one slot (6146) (claim 17) or flexible portions (claim 22) to form hinges structured and arranged to conform to varying facial profiles.
Elbow assembly including a swivel component (6610) connected to a patient interface (6000) by a pair of spring arms (6650) and coupled to an elbow component (6620) by ball and socket joint and a hinge joint (6645) which allows pivoting about a single axis. Hinge joint prevents the elbow component from contacting the spring arms. Swivel component includes inner radial wall (6630) and outer radial wall (6632) defining radial channel (7633) leading to vent holes (6640) for gas washout, tracks or guide walls (7637) within the channel providing discrete flow paths to the vent holes, an inwardly extending lip or chevron (8631) redirects flow to reduce noise and/or minimize flow directly onto sensitive parts the face. Ball portion (6662) includes opposed recesses (6664) engaged with pivot pins (6645) on swivel component to form the hinge. Elbow component houses a pair of anti-asphyxia valves (6680).
A cushion assembly for a patient interface including an elastomeric support portion and an elastomeric seal-forming structure supported by the elastomeric support portion that is more rigid than the elastomeric seal-forming structure. The elastomeric seal-forming structure includes a first compliant region and a second compliant region separated from the first compliant region by a support region that is more rigid than the first and second compliant regions. The more rigid support region extends to and is anchored by the elastomeric support portion. In addition, for every point in the rigid support region, the inner surface has a negative curvature when the outer surface has a positive curvature and the inner surface has a positive curvature when the outer surface has a negative curvature.
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. In some cases, instantaneous impedance or conductance may be used to assess re-connection of a patient circuit, detection of flow starvation, determine breath shape for triggering and cycling and to detect patient or circuit obstructions.
A headgear assembly includes a strap of a first flexible material with an elongate edge, and a second flexible material folded around and running along the elongate edge. The second flexible material may be an elastic material. The second flexible material may also cover an intersection or joint in the first flexible material such that the first flexible material may be made from two flexible materials layered together or joined end to end.
A patient interface includes a cushion assembly adapted to form a seal around the patient's nose and/or mouth and a gas washout vent configured to allow a flow of patient exhaled CO2 to an exterior of the patient interface to minimise rebreathing of exhaled CO2 by the patient. The cushion assembly defines a plenum chamber pressurised at a pressure above ambient pressure in use. At least one volume reducing member is provided within the plenum chamber to reduce an effective internal volume of the plenum chamber. The at least one volume reducing member is arranged to separate a main volume of the plenum chamber for delivery of the therapy pressure from deadspace volume provided at least superior the entrance to the patient's nasal passages. The main volume is adapted to be in direct fluid communication with the patient's nose and/or mouth and the vent.
Apparatus for generating a supply of air at positive pressure for the amelioration or treatment of a respiratory disorder includes a first chamber, a second chamber, at least one inlet tube structured and configured to allow ambient air to enter the first chamber, at least one flow tube structured and configured to allow air to pass from the first chamber to the second chamber, and a blower structured and configured to produce a flow of air at positive pressure. The blower is positioned in the first chamber and structured and configured to receive air from the second chamber. The blower includes a housing structured and configured to sealingly separate air flow through an interior of the housing from the first chamber. The at least one inlet tube is axially spaced from the at least one flow tube.
A flow regulating valve for a respiratory treatment system is disclosed, as well as a vent arrangement comprising the flow regulating valve. The flow regulating valve may include an inlet, an outlet, and a variable conduit in fluid communication with the inlet and the outlet. The variable conduit may include a movable portion that may move to vary an impedance of the variable conduit, thereby regulating a flow rate of the air travelling through the variable conduit. Advantageously, the flow regulating valve may thus reduce wastage of air (e.g. humidified air) that is exhausted from a respiratory treatment system, while maintaining sufficient washout of air.
Apparatus and methods automate selection of patient interface(s) according to their size, such as with processing in a processor(s) or in a server(s). Image data captured by an image sensor may be received. The captured image data may contain facial feature(s) of an intended user of the patient interface. The facial features may be captured in association with a predetermined reference feature of known dimension(s). The user's facial feature(s) and the reference feature may be detected in the captured image data. Image pixel data of the image may be processed to measure an aspect of the detected facial feature(s) based on the reference feature. A patient interface size may be detected from standard patient interface sizes based on a comparison between the measured aspect of the facial feature(s) and a data record relating sizing information of the standard patient interface sizes and the measured aspect of the facial feature(s).
A61M 16/06 - Masques respiratoires ou pour l'anesthésie
G06F 19/00 - Équipement ou méthodes de traitement de données ou de calcul numérique, spécialement adaptés à des applications spécifiques (spécialement adaptés à des fonctions spécifiques G06F 17/00;systèmes ou méthodes de traitement de données spécialement adaptés à des fins administratives, commerciales, financières, de gestion, de surveillance ou de prévision G06Q;informatique médicale G16H)
27.
DIAGNOSIS AND MONITORING OF CARDIO-RESPIRATORY DISORDERS
Methods and systems estimate cardio-respiratory parameter(s), such as from in-phase and quadrature channels. The channels may represent patient chest movement and may be generated with a sensor, such as a contactless sensor that may sense movement with radio-frequency signals. In the methods/systems, the in-phase and quadrature channels may be processed, such as in a processor(s), using relative demodulation to generate cardio-respiratory parameter estimate(s). Optionally, the processing produces a jerk signal that may be filtered for producing a heart rate estimate, such as from zero-crossings of the filtered signal. Optionally, the processing produces a chest velocity signal that may be filtered for producing a respiratory rate estimate, such as from zero-crossings of the filtered signal. Optionally, a respiratory volume, such as tidal volume, may be estimated from an intrapulmonary pressure signal generated by applying a function to a chest displacement signal where the function relates intrapulmonary pressure and chest displacement.
A61B 5/0205 - Évaluation simultanée de l'état cardio-vasculaire et de l'état d'autres parties du corps, p. ex. de l'état cardiaque et respiratoire
A61B 5/113 - Mesure du mouvement du corps entier ou de parties de celui-ci, p. ex. tremblement de la tête ou des mains ou mobilité d'un membre se produisant au cours de la respiration
A61B 5/08 - Dispositifs de mesure pour examiner les organes respiratoires
A61B 5/024 - Mesure du pouls ou des pulsations cardiaques
28.
IMPELLER WITH INCLINED AND REVERSE INCLINED BLADES
An impeller for use in a centrifugal blower, the impeller includes a hub defining an axis of rotation for the impeller; a plurality of inclined blades, the plurality of inclined blades extending away from the hub; and a plurality of reverse inclined blades, the plurality of reverse inclined blades extending away from the hub. Each of the plurality of inclined blades are joined to an adjacent inclined blade at least in part by a reverse inclined blade.
A method and system are disclosed for use in monitoring/screening/diagnosing sleep or wake state of a subject or patient. The method generally includes monitoring the patient's activity during one or more sleep sessions comprising a plurality of intervals known as epochs. The sleep/wake state of the subject is determined during each epoch of the session using actigraphy data obtained during the monitoring session. The actigraphy data provides information about the activity of a patient during an epoch. The sleep or wake state is determined based on a ratio of the activity count during an epoch to the activity count during a preceding epoch. If the ratio is greater than a first activity threshold, then a "wake" indication may be provided by, for example, the system. Alternatively, or additionally, a "wake" indication may be determined if the activity count during the epoch is greater than a threshold.
Methods and apparatus treat a respiratory disorder. For example, a pressure generator supplies a flow of air at positive pressure to a patient's airway through a patient interface. A sensor generates a signal representing respiratory flow rate of the patient. A controller controls the pressure generator to provide to the patient interface a ventilation therapy having a base pressure. The controller computes a measure of ventilation of the patient from the signal. The controller computes a measure of flow limitation from an inspiratory portion of the signal. The controller computes a ratio of the measure of ventilation and an expected normal ventilation. The controller adjusts a set point for the base pressure of the ventilation therapy based on the measure of flow limitation. The adjustment may further depend on a comparison between the ratio and a relative ventilation threshold that increases as the measure of flow limitation increases.
One form of the present technology includes a sealing structure to seal against a user's face around the user's airways. The sealing structure includes a flap or membrane that extends inward towards the user's airways and includes a structure that prevents an inner boundary of the flap or membrane from being blown outwards (e.g., folded backwards upon itself) due to internal pressurization.
A method, such as in a controller associated with a respiratory therapy device, determines whether high flow therapy is being used by a patient. The method may include determining whether a property of a flow of air being delivered by a respiratory therapy device along an air circuit to an unsealed patient interface contains a significant oscillation within a breathing rate frequency band. The method may also include generating, dependent on the determination, an indication of whether high flow therapy is being used by the patient.
One form of the present technology includes a fluid connector for delivery of breathing gas to a patient from a respiratory pressure therapy device, the fluid connector including a first end with a first opening to deliver a fluid flow, a seal portion extending around a periphery of the first opening, and a latching portion, a second end with a second opening to receive the fluid flow, a sealing surface extending around a periphery of the second opening and configured to engage the seal portion to form a face seal, and a complementary latching portion configured to engage with the latching portion
F16L 37/086 - Accouplements du type à action rapide dans lesquels l'assemblage entre les extrémités s'aboutant ou se chevauchant est maintenu par des organes de blocage combinés à un verrouillage automatique au moyen d'éléments d'enclenchement poussés radialement par des éléments faisant ressort
A medical humidifier for humidification of air to be delivered to a patient's airways may include a humidification chamber, a reservoir and a water delivery mechanism. The humidification chamber may include a water retention feature such as a wick, a heating element for heating the humidification chamber, and an air flow baffle configured to promote humidification. The humidifier may be further configured to execute one or more algorithms, for example to determine a condition of the humidifier and/or to mitigate any detected faults. In some forms, the humidifier may also comprise algorithms for controlling one or more components of the humidifier.
A gas washout vent for a patient interface may be configured to allow a flow of patient exhaled gas to an exterior of the patient interface to minimise rebreathing of exhaled gas by the patient and the vent may include: a plurality of vent passages extending between a first and a second side of the vent, each vent passage may include: a plurality of first openings extending from the first side towards the second side, said first openings being uniform in size and shape; a plurality of second openings extending from the second side towards the first side, said second openings being uniform in size and shape; and wherein the first openings and the second openings partially overlap each other at an interface to form constricted passages therebetween.
A personal entertainment respiratory apparatus provides air to a user to provide a fully immersive entertainment experience. The personal entertainment system may comprise a flow generator for providing the flow of air. A personal spatial respiratory interface may be coupled to the flow generator. The personal spatial respiratory interface may comprise an outlet for the flow generator. The personal spatial respiratory interface may further be configured to direct the flow of air within an ambient breathing proximity of a user. The personal entertainment respiratory apparatus may further comprise a controller and a sensory particle dispenser. The controller and sensory particle dispenser may be configured to selectively activate release of a sensory particle from the dispenser into the directed flow of air in response to an entertainment triggering signal.
A62B 7/10 - Appareils respiratoires avec des éléments filtrants
A62B 18/08 - Parties constitutives des casques ou masques à gaz, p. ex. fenêtres, sangles, transmetteurs de voix, dispositifs de signalisation
A62B 23/02 - Filtres en vue de la protection des voies respiratoires pour appareils respiratoires
A63F 13/28 - Dispositions de sortie pour les dispositifs de jeu vidéo répondant à des signaux de commande reçus du dispositif de jeu pour influer sur les conditions ambiantes, p. ex. pour faire vibrer les sièges des joueurs, activer des distributeurs de parfums ou agir sur la température ou la lumière
A61M 16/06 - Masques respiratoires ou pour l'anesthésie
F04D 25/10 - Ensembles comprenant des pompes et leurs moyens d'entraînement le fluide énergétique étant l'air, p. ex. pour la ventilation l'ensemble ayant le moyen de changer automatiquement la direction de l'air refoulé
F04D 29/42 - Carters d'enveloppeTubulures pour le fluide énergétique pour pompes radiales ou hélicocentrifuges
F04D 29/52 - Carters d'enveloppeTubulures pour le fluide énergétique pour pompes axiales
A patient interface for sealed delivery of a flow of air at a continuously positive pressure with respect to ambient air pressure to an entrance to the patient's airways including at least entrance of a patient's nares to ameliorate sleep disordered breathing may include a seal-forming structure comprising a foam undercushion and a textile membrane for contact with the patient's face; a positioning and stabilising structure to maintain the seal-forming structure in sealing contact with an area surrounding an entrance to the patient's airways while maintaining a therapeutic pressure at the entrance to the patient's airways; and a plenum chamber pressurised at a pressure above ambient pressure in use.
Methods and apparatus provide automated controls for a respiratory pressure therapy device, such as a servo-ventilator. For example, a controller of a respiratory pressure therapy device may control application of pressure support ventilation therapy to an airway of a patient. The controller may control the respiratory pressure therapy device to auto-titrate an expiratory positive airway pressure (EPAP) of a pressure support ventilation therapy so as to maintain airway patency of the patient. The EPAP may be bounded below by a floor pressure limit. The controller may control the respiratory pressure therapy device to repeatedly adjust the floor pressure limit depending on events of interest during the auto-titration of the EPAP. Such methodologies may improve treatment for patients such as those suffering from sleep disordered breathing-comorbid hyperarousal disorders.
Apparatus and methods provide compliance management tools such as for respiratory pressure therapy. In some versions, a respiratory pressure therapy system may include one or more processors, such as of a data server, configured to communicate with a computing device and/or a respiratory pressure therapy device. The respiratory pressure therapy device may be configured to deliver respiratory pressure therapy to a patient for a session. The computing device may be associated with the patient. The processor(s) may be further configured to compute a therapy quality indicator of the session from usage data relating to the session. The therapy quality indicator may be a number derived from contributions of a plurality of usage variables for the session in the usage data. The processor(s) may be further configured to present, such as by transmitting, the therapy quality indicator to the computing device. The therapy quality indicator may promote patient compliance.
A mask apparatus for a respiratory treatment can permit delivery of breathable gas to a user. In one example, the mask may employ a frame and cushion to form a seal for both mouth and nose. The frame may be adapted for coupling with a respiratory treatment apparatus so as to permit communication of a pressurized gas from the respiratory treatment apparatus. The cushion, which may be foam, and a frame component may be made in an overmoulding process that moulds the frame onto a pre- formed foam cushion. Such a moulding process may form a mechanical and/or chemical bonding of the foam and mask frame component. The mask frame component may be a shell of plenum chamber, such as for both nose and mouth. Various features of the cushion may further promote sealing and comfort for the under the nose design.
A gas washout vent, and a patient interface with the gas washout vent, configured to allow patient-exhaled CO2 to flow to an exterior of the plenum chamber to minimise rebreathing of exhaled CO2 by the patient, the gas washout vent including at least one outlet orifice; a diffusing member at least partly covering the outlet orifice; and a blocking member having an air-impermeable material, the blocking member preventing gas exiting from the outlet orifice from flowing straight through the diffusing member.
A positioning and stabilising structure for a patient interface for delivery of a supply of pressurized air or breathable gas to a patient's airways may include a first fabric layer; a second fabric layer; a central fabric layer between the first fabric layer and the second fabric layer. The central fabric layer, the first fabric and the second fabric may be warp/weft knitted together.
Automation for a system and/or method detects and/or controls treatment of inspiratory flow limitation. The system may include a flow rate sensor configured to generate a signal representing a respiratory flow rate of a patient. It may include a recording device configured to record the generated respiratory flow rate signal during a diagnosis session. It may include a computing device (7040) configured to detect a degree of inspiratory flow limitation of the patient on the recorded respiratory flow rate signal. The method may include extracting an inspiratory portion of each breath during a detection and/or monitoring session from a respiratory flow rate signal of the patient, calculating a feature vector from each inspiratory flow portion, labelling each feature vector as flow limited or not flow limited, and/or computing a metric based on the labels, the metric indicating the degree of inspiratory flow limitation of the patient during the session.
Methods or systems (7000) are implemented for treatment with or monitoring use of respiratory pressure therapy device(s). The device may be for a respiratory disorder. A processor, such as a processor of a server communicating with the therapy device, may analyse data relating to respiratory therapy delivered by the device. The processor may generate data in the processor representing a prediction, such as compliance prediction(s), about progress of therapy based on the analysis. The processor may select an action to improve therapy based on data representing the prediction. The processor may take or prompt selected action to improve the therapy. In some cases, a processor may analyse usage data concerning a period of days with a therapy device and generate compliance prediction indicators based on the analysis. The indicators indicate whether compliance will be likely. The processor may recommend engagement action to improve compliance based on evaluation of the indicators.
Methods and Systems implement patient management. In some cases, a patient management system 200 may include one or more respiratory pressure therapy devices to deliver respiratory pressure therapy to patients, and generate therapy data relating to a therapy session for a patient. The patient management system may include a data server communicating with the therapy device(s). The data server may compute, from therapy data, therapy summary data for the session, the summary data may include one or more statistics summarising therapy data. The patient management system may include a therapy management server communicating with the data server. The therapy management server may apply one or more rules to the summary data, update or generate one or more workflow groups of patients, each workflow group corresponding to a rule, depending on results of the respective rule applications; and/or serve a graphical layout representing one or more workflow groups.
A method of manufacturing a patient interface for sealed delivery of a flow of air at a continuously positive pressure with respect to ambient air pressure to an entrance to the patient's airways includes collecting anthropometric data of a patient's face. Anticipated considerations are identified from the collected anthropometric data during use of the patient interface. The collected anthropometric data is processed to provide a transformed data set based on the anticipated considerations, the transformed data set corresponding to at least one customised patient interface component. At least one patient interface component is modelled based on the transformed data set.
Devices and systems with methods for detecting a sealing condition between a patient interface and a patient, and adjusting the patient interface to maintain the patient interface in sealing contact with the patient. The patient interface may include a sealing structure to form a seal on the patient, and a positioning structure to secure the sealing structure to the patient. The patient interface may include a sensor coupled to the sealing structure. A processor determines the sealing condition between the sealing structure and the patient based on a signal from the sensor, and adjusts at least one of the sealing structure and the positioning structure to maintain the sealing structure in sealing contact with the patient. A prediction system predicts a leak between the sealing structure and the patient based on the sensor signal. A learning system learns how to fit the sealing structure to the patient to form a seal.
The technology provides for a cushion assembly or a tool for forming the cushion assembly for a patient interface delivery of a supply of pressurised air or breathable gas to an entrance of a patient's airways. The cushion assembly has an inferior surface and a mask connection portion, and includes a pad arranged on the inferior surface for sealingly contacting a wearer's face in use.
Apparatus to permit a delivery of a flow of breathable gas to a patient's airways. In one version, a coupler extension may include a seat portion to permit use of a mask with a nasal cannula. In some versions, the coupler extension is configured to conduct the flow of gas to prongs of a nasal cannula. The seat portion can receive and seal with a cushion of a respiratory mask and may have a sealing bevel to promote sealing between the cushion of the respiratory mask and a facial contact surface of a user. In some versions, a conduit adapted to communicate a flow of gas may comprise a slit valve formed by a portion of the wall material of the conduit. In some versions, a nasal interface may include naris pillows to seal with and conduct a flow of breathable gas into a nares of a user. Each naris pillow may include a nasal projection to conduct a further flow of gas. The nasal projection may extend within the naris beyond the seal of the naris pillow.
Methods and apparatus for treating a respiratory disorder, in one aspect, include an apparatus that delivers backup breaths at a sustained timed backup rate that is a function of the patient's spontaneous respiratory rate. Other aspects include apparatus that delivers backup breaths at a rate that gradually increases from a spontaneous backup rate to a sustained timed backup rate or, alternatively, apparatus that oscillates a treatment pressure in antiphase with the patient's spontaneous respiratory efforts when a measure indicative of ventilation is greater than a threshold. Other aspects include apparatus configured to treat Cheyne-Stokes respiration by computing the treatment pressure so as to bring a measure indicative of ventilation of the patient towards a target ventilation that is dependent on the measure indicative of ventilation or, alternatively, by periodically elevating the treatment pressure to a high level for a short time, the high level being high enough and the short time being long enough to induce a central apnea in a patient. Depending on functionality, the foregoing apparatus may comprise an adaptive servo-ventilator or CPAP therapy device.
A system and method for patient data management may include a patient device (720, 730, 740), server (710), and computing device (760). The patient device (720, 730, 740) may collect usage data (728) in accordance with subscriptions (726) that may include a set of instructions. The patient device (720, 730, 740) may also transmit the collected usage data (728) over a network to the server (710) or computing device (760). This transmission may occur based on a triggering event designated in the subscription (726). The patient device (720, 730, 740) may also receive updates to the subscription (726) from the server (710), so as to alter the process by which the patient device collects and transmits the usage data.
G06Q 50/24 - Gestion de dossiers médicaux (traitement de données médicales ou biologiques à des fins scientifiques G06F 19/00)
A61B 5/00 - Mesure servant à établir un diagnostic Identification des individus
G06F 19/00 - Équipement ou méthodes de traitement de données ou de calcul numérique, spécialement adaptés à des applications spécifiques (spécialement adaptés à des fonctions spécifiques G06F 17/00;systèmes ou méthodes de traitement de données spécialement adaptés à des fins administratives, commerciales, financières, de gestion, de surveillance ou de prévision G06Q;informatique médicale G16H)
A61M 16/00 - Dispositifs pour agir sur le système respiratoire des patients par un traitement au gaz, p. ex. ventilateursTubes trachéaux
A system and method is disclosed for performing diagnostics on patient devices (720). The patient devices (720) may include respiratory therapy devices that operate in accordance with instruction sets, such as software or firmware. A server (710) may maintain a database of diagnostic data (718) indicating faults in one or more of a plurality of patient devices (720). The server (710) may transmit this diagnostic data (718) to one or more computing devices (760), including identification of faults that have occurred. The server (710) may also transmit service data to the plurality of patient devices (720) in order to address the identified faults.
A61B 5/00 - Mesure servant à établir un diagnostic Identification des individus
G06Q 50/22 - Aide sociale ou assistance sociale, p. ex. activités de développement communautaire ou services de consultation
G06F 19/00 - Équipement ou méthodes de traitement de données ou de calcul numérique, spécialement adaptés à des applications spécifiques (spécialement adaptés à des fonctions spécifiques G06F 17/00;systèmes ou méthodes de traitement de données spécialement adaptés à des fins administratives, commerciales, financières, de gestion, de surveillance ou de prévision G06Q;informatique médicale G16H)
G06F 11/07 - Réaction à l'apparition d'un défaut, p. ex. tolérance de certains défauts
A system and method for updating patient devices is disclosed. The patient devices (720, 730, 740) may include respiratory therapy devices (4000) that operate in accordance with instruction sets (726), such as software or firmware. A server (710) may maintain a database of configuration data (718) indicating the versions of the software and firmware that is currently installed on the patient devices (720, 730, 740). The server (710) may also transmit updated instructions (716) from over a network (4282), including a wireless network. Particular patient devices (720, 730, 740) may be selected for updating based on the configuration data (718). Upon performing an update a patient device (720, 730, 740) may transmit configuration data (728) to the server (710).
A61B 5/00 - Mesure servant à établir un diagnostic Identification des individus
G06Q 50/22 - Aide sociale ou assistance sociale, p. ex. activités de développement communautaire ou services de consultation
G06F 19/00 - Équipement ou méthodes de traitement de données ou de calcul numérique, spécialement adaptés à des applications spécifiques (spécialement adaptés à des fonctions spécifiques G06F 17/00;systèmes ou méthodes de traitement de données spécialement adaptés à des fins administratives, commerciales, financières, de gestion, de surveillance ou de prévision G06Q;informatique médicale G16H)
A patient interface comprises a frame, a headgear, a manifold and two nasal prongs. The frame may be recessed from the face of the patient, and preferably from the manifold so that the manifold may deform or move with respect to the face of the patient. The manifold may be further configured to be compliant in the direction of engagement with the patient's face, such as in the anterior direction. These features may allow the manifold to engage with the face of the patient, such as the upper lip, without exerting a significant pressure which may lead to patient discomfort. The manifold may also be configured to be rotatable with respect to the frame, for example by a grip feature which may be configured to be held in one hand for rotation.
A patient interface for sealed delivery of a flow of air to ameliorate sleep disordered breathing may include: a seal-forming structure to form a pneumatic seal with the entrance to the patient's airways; a positioning and stabilising structure to maintain the seal-forming structure in sealing contact with an area surrounding the entrance to the patient's airways; a plenum chamber pressurised at a pressure above ambient pressure in use; a connection port for the delivery of the flow of breathable gas into the patient interface; and a device positioned within a breathing chamber defined, at least in part, by the seal-forming structure and the plenum chamber, wherein the device divides the breathing chamber into a posterior chamber and an anterior chamber, and wherein the device comprises a plurality of apertures such that turbulence of the air in the posterior chamber is less than turbulence in the air in the anterior chamber.
A humidifier for humidification of air to be delivered to a patient's airways may include a humidification chamber, a reservoir and a water delivery mechanism. The humidification chamber may include a water retention feature such as a wick that encloses part of the flow path, a heating element for heating the humidification chamber, and an air flow baffle configured to promote humidification. The humidifier may be further configured to execute one or more algorithms, for example to determine a condition of the wick or to detect condensation in the flow path. In some forms, the humidifier may also comprise algorithms for controlling one or more components of the humidifier such as to control the build up of foreign matter on the wick.
Disclosed is an apparatus for treating a respiratory disorder. The apparatus comprises a pressure device, and a controller, including at least one processor, configured to control the pressure device to: supply, upon initiation of treatment, a flow of pressurised air to the airway of a patient at a treatment pressure according to a pre- sleep profile of pressure versus time, increase, upon detection of sleep onset of the patient, the treatment pressure to a predetermined therapeutic pressure according to a bridging profile of pressure versus time, and supply the flow of pressurised air to the airway of the patient at a therapeutic pressure.
A method for a device detects periodic breathing in a patient. The method may include receiving a series of event intervals bounded by apnea or hypopnea events detected in respiration of the patient, and processing, upon closure of an event interval, the event interval to determine a character of the event interval, such as any of: probably a periodic breathing cycle; probably not a periodic breathing cycle; and uninformative. The method may further include determining whether to change a current periodic breathing state that indicates whether a periodic breathing episode is in progress, based on a history of event interval characters that is long compared to the typical length of a periodic breathing cycle.real-time detection of periodic breathing
ABSTRACT A method of a device detects a respiratory effort-related arousal in a respiratory airflow signal of a patient. The method may include computing a measure of consistency of inspiratory flow limitation over a plurality of recent breaths from the signal. The method may further include computing a measure of step change in ventilation indicating a sudden big breath. The method may further include computing a measure indicating a degree of confidence of occurrence of a respiratory effort-related arousal from the measure of consistency of inspiratory flow limitation and the measure of the step change in ventilation.
A respiratory pressure therapy (RPT) device is disclosed for treatment of respiratory- related disorders. The RPT device includes a pressure generator, a pneumatic block, a chassis and a device outlet for delivering a supply of flow of gas to a patient interface. The RPT device also comprises an integrated humidifier including a water reservoir. An RPT device is also disclosed that includes a wireless data communication interface integrated with the housing and configured to connect to another device or a network.
A patient interface for delivery of a supply of pressurised air or breathable gas to an entrance of a patient's airways comprising: a cushion member that includes a retaining structure and a seal-forming structure permanently connected to the retaining structure; a frame member attachable to the retaining structure; and a positioning and stabilising structure attachable to the frame member.
A method of an apparatus control pressure in the patient interface. A vent valve may be used with a respiratory device, where the vent valve may selectively block fluid communication between components, such as the flow generator, the patient interface, and/or the vent. An expiratory flow model may be used to determine an expiratory characteristic such as an expiratory flow rate or pressure in the patient interface where an indicative measure may not be available. The expiratory flow model may receive inputs based on a measure of the patient's respiration, such as the tidal volume, peak inspiratory flow rate or length of inspiration. The expiratory characteristic may be used by a controller to control a pressure in the patient interface to provide respiratory therapy to a patient at or close to a target pressure.
Methods of an apparatus determine a quantity of a body of water in a humidifier such as by indirect measurement. The quantity of water may be determined by measuring one or more properties or characteristics, from which the quantity of water may be inferred. Characteristics of a flow of air, the humidifier, and/or the body of water may be measured. The characteristics may be, for example, pressure, flow rate, noise, vibration, temperature, electrical or mechanical. These may be measured by one or more sensors, which may be located in the humidifier, RPT device, air circuit or the patient interface. The methods described may have advantages, for example in being able to detect the quantity of water without requiring sensors to be present in a disposable component, and in some cases, without introduction of additional sensors.
A system and method electronically manages sleep related data obtained by a diagnostic device. The system and method may include collecting sleep data from a patient using a diagnostic device. The sleep data may be stored in a sleep data file and delineated as multiple sleep sessions. A user may access the stored sleep data by selecting a particular sleep session. The sleep data for the selected sleep session may then be extracted from the sleep data file and presented to the user as a combination of image tiles, JavaScript elements, and an event indicator.
A61B 5/08 - Dispositifs de mesure pour examiner les organes respiratoires
G06F 19/00 - Équipement ou méthodes de traitement de données ou de calcul numérique, spécialement adaptés à des applications spécifiques (spécialement adaptés à des fonctions spécifiques G06F 17/00;systèmes ou méthodes de traitement de données spécialement adaptés à des fins administratives, commerciales, financières, de gestion, de surveillance ou de prévision G06Q;informatique médicale G16H)
G06F 3/00 - Dispositions d'entrée pour le transfert de données destinées à être traitées sous une forme maniable par le calculateurDispositions de sortie pour le transfert de données de l'unité de traitement à l'unité de sortie, p. ex. dispositions d'interface
A vent arrangement for a mask system includes a mask component and a mask vent provided to the mask component. The mask vent includes a plurality of vent holes each extending through a thickness of the mask component and each including a vent exit, and a continuous side wall structured to surround the plurality of vent exits of the vent holes.
A system and method for patient data processing during diagnosis and therapy of a patient's sleep disorder breathing. The system and method includes providing diagnostic providers and therapy device providers with a simple and fast way to generate a clinical diagnosis from a diagnostic device and to transfer that patient's record and diagnostic data to the therapy provider responsible for the patient's ongoing care. The patient may be automatically assigned therapy devices having predetermined therapy settings that are based on the patient's record and diagnostic data.
A patient interface for supplying a flow of breathable gas to the airways of a patient may comprise a heat and moisture exchanger (HME). The HME may be positioned in a flow path of the flow of breathable gas. The HME may absorb heat and moisture from gas exhaled by the patient and the incoming flow of breathable gas to be supplied to the patient's airways may be heated and moisturized by the heat and moisture held in the HME.
A patient interface system to treat a respiratory disorder of a patient, the patient interface system comprising: a positioning and stabilising structure including a back portion and a pair of upper straps extending from the back portion; and a patient interface including a patient interface frame and a pair of rigidiser arms each connected to the patient interface frame at a connection point located in a plane substantially parallel to the patient's Frankfort horizontal plane, the pair of rigidiser arms further including a pair of upper attachment points, wherein the pair of upper straps are adapted to be releasably attached to the pair of upper attachment points such that, when donned by the patient, the pair of upper straps are vertically offset relative to the connection points and substantially parallel to the patient's Frankfort horizontal plane, and wherein the patient interface does not include a forehead support.
A respiratory apparatus includes components to protect operations of the apparatus. For example, in some versions, the apparatus may include a power supply, a motor powered by the power supply, and a transient absorption diode circuit between the motor and the power supply. The transient absorption diode circuit may be configured to absorb energy generated by the motor from rotational kinetic energy. Such absorption may serve to protect the components of the apparatus. In some examples, the apparatus may include a fault mitigation integrated circuit (IC). The IC circuit may be included in the respiratory apparatus to detect one or more faults based on physical and system parameters of the apparatus. The fault mitigation integrated circuit may generate a signal to stop the motor based on the detected fault, and may digitally communicate with a processor information about the detected fault.
A61M 16/00 - Dispositifs pour agir sur le système respiratoire des patients par un traitement au gaz, p. ex. ventilateursTubes trachéaux
A61M 39/00 - Tubes, raccords ou accouplements pour tubes, soupapes, voies d'accès ou similaires, spécialement adaptés pour un usage médical
H02M 3/155 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu sans transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs
70.
OUTLET CONNECTION ASSEMBLY AND METHOD OF MAKING THE SAME
A connection assembly for a respiratory therapy system, comprising: an outlet assembly, said outlet assembly including an outlet housing and a swivelling disc located on said outlet housing, said outlet housing and said swivelling disc defining, at least in part, a recess; an outlet connector located at an end of a tube portion, said outlet connector including an electrical connector; and a cable having a first end to connect to the electrical connector and a second end to connect to at least one electrical component of the respiratory therapy system, said cable having a slack portion, wherein said outlet connector and said swivelling disc are rotatable in unison between a first position and a second position, and wherein the slack portion of the cable extends from the recess and wraps around the swivelling disc as the swivelling disc is rotated from the first position to the second position.
A respiratory treatment apparatus generates a flow of breathable gas such as for a respiratory therapy. In an example, the apparatus may employ one or more steam cells. The steam cell may generate a flow of steam for the respiratory therapy. In some examples, the flow of steam from the steam cell may be applied to be mixer. The mixer may be configured to combine the steam from the mixer with air, such an ambient air. In some versions, the mixer may be a discrete component or integrally formed within a housing or chamber of the steam cell. Optionally, the mixer may include one or more venturi jets configured to accelerate the flow of steam and entrain the air for delivery as a breathable gas treatment for a patient or user.
A patient interface to provide breathable gas to a patient, comprising: a plenum chamber assembly, comprising: a nasal plenum chamber at least partly defining an upper gas chamber; an oral plenum chamber at least partly defining a lower gas chamber; and a decoupling structure at least partly connecting the nasal plenum chamber and the oral plenum chamber and at least party defining a flow path; a top plate including at least one connection feature configured to releasably retain a first portion of a positioning and stabilising structure; and a faceplate configured to releasably retain a second portion of a positioning and stabilising structure.
The present technology relates to a neck strap, a crown strap assembly and a headgear for a breathing mask. The neck strap comprises first and second lower connection portions adapted to connect to first and second lower mask connection straps, and first and second upper connection portions adapted to connect to a first and second lateral crown straps.
A61M 16/06 - Masques respiratoires ou pour l'anesthésie
A61B 18/08 - Instruments, dispositifs ou procédés chirurgicaux pour transférer des formes non mécaniques d'énergie vers le corps ou à partir de celui-ci par chauffage à l'aide de sondes chauffées électriquement
A vent arrangement for a respiratory pressure therapy device may include one or a plurality of vents configured with a variable aperture for communicating a flow of breathable gas. The vent arrangement may be configured with a cross section profile exposed to the flow of breathable gas communicating through the vent that does not change as the aperture size changes. A vent arrangement may include a plurality of the vents and the aperture size of each vent may be controlled independently or together, and may be controlled according to one or more input signals from one or more sensors. Examples of suitable input signals include flow, pressure, noise, accelerometer outputs, orientation of a patient or presence of any obstructions. A patient interface or an air circuit may include the vent arrangement, or the vent arrangement may be configured to connect with a patient interface or an air circuit.
A61M 16/06 - Masques respiratoires ou pour l'anesthésie
A61M 16/20 - Valves spécialement adaptées aux dispositifs respiratoires médicaux
F16K 11/02 - Soupapes ou clapets à voies multiples, p. ex. clapets mélangeursRaccords de tuyauteries comportant de tels clapets ou soupapesAménagement d'obturateurs et de voies d'écoulement spécialement conçu pour mélanger les fluides dont toutes les faces d'obturation se déplacent comme un tout
A reservoir configured to retain a volume of liquid for use in an apparatus for humidifying a flow of pressurised air comprises a base portion and a lid portion. The reservoir may be configured to improve its level of thermal contact to the heater plate using the flow of pressurised air. The reservoir may be configured to improve thermal contact between the reservoir and the heater plate by pre-compression upon engagement of the reservoir with the humidifier. The reservoir may comprise a removable intermediate portion, which may include the inlet tube and/or the outlet tube, for improved access for cleaning. The reservoir may also be configured to prevent overfilling. Overfill prevention features in the reservoir may include defined flow egress paths and/or formation of air locks.
Apparatus for cutting of elastic material (2) that comprises: a base plate (4, 4', 1144, 144'), an opposing center plate portion (14, 14', 1114, 1114') and separation means (10) adapted to, in use, separate at least a portion of the elastic material (2). At least one of the base plate (4, 4', 1144, 1144') and the opposing center plate portion (14, 14', 1114, 1114') is movable relative to the others to change a distance therebetween. This change may compress the elastic material (2) and define a protruding portion (22) of the elastic material (2). At least one of the separation means (10) may be rotatable and the apparatus is arranged to change a distance between the separation means (10) and the opposing center plate portion (14, 14', 1114, 1114') to effect the cutting of the protruding portion (22).
B26D 3/28 - Fendage d'un matériau pour obtenir des feuilletsSéparation mutuelle des couches par coupe
B26D 9/00 - Appareillages de coupe combinés avec des appareillages de poinçonnage ou de perforation, ou avec d'autres appareillages de coupe différents
B26D 7/01 - Moyens pour maintenir ou mettre en position la pièce
B26D 7/08 - Moyens de traitement de la pièce ou de l'outil de coupe pour faciliter la coupe
77.
METHOD AND APPARATUS FOR CONTROLLING PRESSURIZED GAS DELIVERED TO A PATIENT
A mask assembly for delivering pressurized gas to a patient comprising a mask having an inspiratory port and an expiratory port located on generally opposite sides, wherein said ports are sized, oriented, positioned, and/or spaced apart a sufficient distance to allow a cross-flow of pressurized gas to flow through the mask assembly; an outlet limb connected to the expiratory port and having an aperture in pneumatic communication with the breathing chamber; the aperture size being variable between a first, open configuration and at least one second configuration that is different from the first. A ventilation system for delivering pressurized gas to a patient comprising a seal formed with the patient's airways and in pneumatic communication with a plenum chamber; an exchanger positioned at least partially within the plenum chamber, and in pneumatic communication with inspiratory and expiratory flow paths, to recover heat and/or moisture from gas exhaled by the patient.
A mask apparatus for a respiratory treatment can permit delivery of breathable gas to a user. In one example, the mask may employ a frame and cushion to form a seal for both mouth and nose. The frame may be adapted for coupling with a respiratory treatment apparatus so as to permit communication of a pressurized gas from the respiratory treatment apparatus. The cushion, which may be foam, may have a substantially under the nose configuration or over the nose configuration. The mask may have a common plenum chamber for both nose and mouth. The cushion may further define a centrally open lip superior region. The cushion may be adapted to couple with the frame directly or to the frame in conjunction with a cushion support clip. Various features of the cushion may further promote sealing and comfort for the under the nose design.
A patient interface for delivery of a supply of pressurised air or breathable gas to an entrance of a patient's airways comprising: a cushion member that includes a retaining structure and a seal-forming structure permanently connected to the retaining structure; a frame member attachable to the retaining structure; and a positioning and stabilising structure attachable to the frame member.
A nasal patient interface for delivery of a supply of pressurised air or breathable gas to an entrance of a patient's airways comprising a cushion member that includes a retaining structure and a seal-forming structure permanently connected to the retaining structure; a frame member attachable to the retaining structure; a positioning and stabilising structure releasably attachable to the frame member; and a headgear clip that mechanically and magnetically engages the frame member to the positioning and stabilising structure. The frame further comprising a vent structured to allow washout of exhaled air and a baffle structured to segregate the exhaled air via the vent from the supply of pressurised air or breathable gas.
Devices and systems provide methods of controlling breathable gas generation such as for a respiratory treatment and/or for controlling ionization of the gas. In an example, a controller of a respiratory treatment apparatus controls generation of a supply of ionized air. The apparatus may include a flow generator to generate a flow of pressurized breathable gas. The flow generator may be adapted for connection with a respiratory interface. The apparatus may also include an ionizer to ionize the flow of gas. The controller may be coupled with the ionizer and the flow generator and be configured to control the ionizer to programmatically change levels of ionization of the gas. Such ionized gas treatments may be suitable for helping users to sleep or improving respiratory oxygen absorption, and may be for patients with, for example, sleep disordered breathing or chronic obstructive pulmonary disease.
A patient interface system to treat sleep disordered breathing of a patient with pressurized gas, comprising: a patient interface; at least one strap; at least one retractor fixedly attached to the patient interface, said at least one retractor connected to the at least one strap and configured to retract the at least one strap without patient actuation; and at least one pad to cushion a rearward portion of the patient's head, said at least one pad having an opening, wherein said at least one strap passes through said opening to allow the at least one pad to move freely relative to said at least one strap.
A method and system assists in management of data associated with a home medical equipment (HME) device provided to a patient. An HME identifier may be received by a physician terminal or an HME provider terminal. In an example, an HME identifier may be stored, encoded, engraved or otherwise applied to a component of an HME device such as a removable storage medium (e.g., an SD card). A records management system may then be searched for a patient record associated with the HME device identifier based on retrieval of the identifier from the component. If a patient record is found, the identity of the patient may be verified. Optionally, if no such patient record is found, then a new patient record associated with the HME identifier may be created.
A patient interface for delivery of a supply of pressurised air or breathable gas to an entrance of a patient's airways comprising: a cushion member that includes a retaining structure and a seal-forming structure permanently connected to the retaining structure; a frame member attachable to the retaining structure; and a positioning and stabilising structure attachable to the frame member.
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.
A respiratory apparatus evaluates accuracy of a pressure sensor, such as when only a single pressure sensor is provided. The accuracy of the pressure sensor may be assessed based on pressure measurement obtained from the pressure sensor and a subordinate or secondary characteristic of the respiratory device such as altitude or atmospheric pressure. A controller or processor may calculate the altitude of the respiratory device based in part on the pressure measurement. In some embodiments, the assessment of the pressure sensor may involve an evaluation of the calculated altitude. In some cases, the assessment of the pressure sensor may involve determining an estimated pressure based on a calculated altitude, and comparing the pressure measurement obtained from the pressure sensor with the estimated pressure.
Disclosed is a cardio-pulmonary health monitoring apparatus. The apparatus comprises a contactless motion sensor configured to generate one or more movement signals representing bodily movement of a patient during a monitoring session; a processor; and a memory storing program instructions configured to cause the processor to carry out a method of processing the one or more movement signals. The method comprises extracting one or more sleep disordered breathing features from the one or more movement signals, and predicting whether a clinical event is likely to occur during a predetermined prediction horizon based on the one or more sleep disordered breathing features.
A61B 5/103 - Dispositifs de mesure pour le contrôle de la forme, du dessin, de la dimension ou du mouvement du corps ou de parties de celui-ci, à des fins de diagnostic
A61B 5/08 - Dispositifs de mesure pour examiner les organes respiratoires
G08B 21/02 - Alarmes pour assurer la sécurité des personnes
A swivel elbow and connector assembly for a patient interface system includes a ring (128) configured to be sealingly secured in an aperture of the patient interface system and an elbow (125) swivably secured in the ring (128). The ring (128) includes a first side (128(1)) in an interior of the patient interface system and a second side (128(2)) at an exterior of the patient interface system when the ring (128) is secured in the aperture. The ring (128) comprises a first flange on the first side and a second flange on the second side, the first and second flanges defining a channel (128(3)) that sealingly engages the aperture of the patient interface system. An inner surface (128(4)) of the ring (128) is partially spherical and an outer surface (125(3)) of the elbow (125) is partially spherical and the elbow (125) and the ring (128) form a ball and socket connection.
Respiratory pressure treatment apparatus include automated methodologies for controlling modulation of pressure during an inspiratory phase or an expiratory phase of patient respiration. The changes in pressure result in various pressure waveforms that may be suitable for treating patients suffering from respiratory insufficiency such as Chronic Obstructive Pulmonary Disease. In example embodiments, a pressure rise or pressure increase may be controlled during a period of patient expiration by implementation of linear, cubic and/or quartic functions that serve as control parameters in a processor that controls a flow generator. One or more of the functions may optionally serve as a control parameter to control the pressure increase during an expiration period and a following decrease during the period of expiration. In some embodiments, such functions may further control a decrease in pressure during a period of patient inspiration, such as a decrease prior to mid-inspiration.
A therapy system configured to wash out or flush out the oral and/or nasal cavity to reduce the effective dead space and reduce the work of breathing. The system may displace the expired air in the oral and/or nasal cavity with atmospheric air, or air with altered concentrations, for example, increased humidity, or oxygen levels. A sealed oral interface is provided to the mouth of a patient to supply a volume of pressurized gas. A control system to synchronize the supply of pressurized gas with the patients respiratory cycle. The supply of respiratory gas may be provided during only a portion of the respiratory cycle.
Disclosed is an apparatus for treating a respiratory disorder, configured to compute a measure of typical recent ventilation such that a rate of adjustment of the measure of typical recent ventilation is reduced as a measure of recent uncompensated leak increases. Also disclosed is an apparatus for treating a respiratory disorder, configured to compute a target ventilation from a product of a measure of typical recent ventilation and a target fraction, wherein the target fraction is dependent on the recent pressure support.
A patient interface for treatment of a user having a respiratory disorder includes a nasal portion having at least one nasal portion aperture adapted to be in communication with a supply of pressurized gas for delivery to at least one nasal opening of the user, and a mouth portion having at least one mouth portion aperture also adapted to be in communication with the supply of pressurized gas to deliver the pressurized gas to an oral cavity of the user's mouth. The at least one mouth portion aperture is separate from the at least one nasal portion aperture, and the patient interface is adapted to limit a flow of the pressurized gas out of the at least one aperture of the mouth portion to be no greater than a flow of the pressurized gas out of the at least one nasal portion aperture.
The present technology relates to a tub for a humidifier comprising a container made of a first material, a heating element, and a lining made of a second, preferably biocompatible, material different from the first material, wherein the container comprises a base and a side wall defining a reservoir for a supply of liquid to be evaporated, the heating element is provided on the base of the container, and the lining covers the heating element and a substantial portion of the inner surface of the side wall of the container.
A full-face mask assembly includes a frame, a cushion provided to the frame, the cushion adapted to form a seal around the patent's nose and mouth and a skeleton frame to maintain the cushion to the frame, the skeleton frame including at least one of an upper support member adapted to support a forehead support, lower headgear clip receptacles adapted to be engaged with clips provided to straps of a headgear assembly, and an annular elbow connection seal adapted to engage an inlet conduit.
A method of a processor for detecting a presence of Cheyne-Stokes respiration from a respiration signal includes accessing data representative of a respiration signal. Data is assessed to detect apnea and/or hypopnea events. A cycle length histogram is determined based on the events and an incident of Cheyne-Stokes respiration is detected based on the cycle length histogram.
An apparatus assesses a condition of a patient. The apparatus may contain a patient interface for communicating a treatment generated by a respiratory treatment apparatus to the respiratory system of a patient. The apparatus may also include a sensing module containing one or more electrochemical sensors to sense chemicals in exhaled breath in real time, or over an extended period of time. The apparatus may also include one or more collectors to accumulate a breath condensate over an extended period of time. The sample collectors may contain an absorbent material, and may also be adapted for replacement within a sensing module. The absorbent material may also include a preservative for preserving a chemical component of the breath, such as an analyte of the exhaled breath. The technology may provide treatment recommendations based on the detected condition of the breath condensate or the chemical components thereof.
A cushion module provided to a frame module for delivery of a supply of gas at positive pressure to be delivered to a patient's airways, the cushion module comprising a main body and a cushion, the main body defining a breathing chamber and having an exterior surface adapted to directly engage with a surface of the frame module, wherein the main body and the cushion together comprise a co-molded, integrated component, the main body comprising a molded polycarbonate material adapted to directly contact the frame module and the cushion comprises a molded silicone material adapted to interface with patient's face, and wherein the molded polycarbonate material of the main body is a more rigid material than the molded silicone material of the cushion.
A mask system includes a cushion for a mask that seals at its upper extent in a region of the nose that is generally above the tip of the nose or pronasale, and extends across a portion of the cartilaginous framework, alar or flares of the patient's nose, e.g., not extending over or across the nasal bone of the patient's nose.
The present technology relates to methods and apparatus to provide ventilation to patients. In particular, the present technology relates to changing ventilator parameters to match changing patient metabolic demand.
A respiratory assistance component is disclosed that changes shape when an electrical charge is provided. The amount of electrical charge that is applied may be based on values, characteristics, or user controlled parameters of the respiratory assistance system. The component may be all or part of a patient interface, a tube, a flow generator, and/or a sleep mat.
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