Class / Patent application number | Description | Number of patent applications / Date published |
128201130 | Inhaled gas heated or humidified by exhaled gas | 50 |
20080283053 | MEDICAL HEAT AND MOISTURE EXCHANGER (HME) - An HME (heat and moisture exchanger) ( | 11-20-2008 |
20090078251 | SYSTEM AND METHOD OF CONDITIONING RESPIRATORY GASES - A respiratory gas conditioning system and method are provided and includes an inhale branch (IB), an exhale branch (EB), a low-dead-space heat and moisture exchanger (HME), and a connector ( | 03-26-2009 |
20090120432 | Moisture indicator for heat and moisture exchange devices - There is provided a moisture indicator for a heat and moisture exchange (HME) device that uses a pre-colorant and an activator applied to an inner surface of the HME device. The colorant undergoes a color change of Delta E (ΔE) of equal to or greater than 3 units upon exposure to moisture but not upon exposure to high humidity. The colorant is visually obvious to the unaided human eye under normal light conditions through the body of the device. The HME device with the visual indicator for moisture can indicate to the care-giver that it is time to change the HME device. | 05-14-2009 |
20090205652 | Medico-surgical apparatus - An HME has a generally T-shape housing ( | 08-20-2009 |
20090301474 | HEAT AND MOISTURE EXCHANGE UNIT WITH RESISTANCE INDICATOR - A heat and moisture exchange (HME) unit including a housing, a heat and moisture retaining media (HM media), and a resistance indicator. The housing forms a first port, a second port, and an intermediate section. The intermediate section extends between the first and second ports, and defines a flow path fluidly connecting the first and second ports. The HM media is maintained within the intermediate section along the flow path. The resistance indicator is carried by the housing and is fluidly connected to the first port. In this regard, a visual appearance of the resistance indicator changes as a function of pressure within the housing to visually alert a caregiver as to possible existence of an excessive pressure differential condition within the HME unit. | 12-10-2009 |
20090301475 | HEAT AND MOISTURE EXCHANGE UNIT - A heat and moisture exchange unit for use with a patient breathing circuit. The unit includes a housing, an MDI port assembly and a heat and moisturizing medium. The housing forms a patient-side port, a ventilator-side port, and a containment region between the patient-side port and the ventilator-side port. The MDI port assembly includes a frame projecting into the containment region and configured to receive a portion of a metered dose dispenser. The frame terminates at an outlet end, forming a flow passage. The heat and moisturizing medium is maintained within the containment region so as to define a medium face most proximate the outlet end of the MDI port assembly. The unit is characterized by the absence of a body between the outlet end and the medium face. | 12-10-2009 |
20090301476 | HEAT AND MOISTURE EXCHANGE UNIT - A heat and moisture exchange (HME) unit including a housing, a heat and moisture retaining media (HM media), and a valve mechanism. The housing forms an intermediate section extending between two ports, and defining first and second flow paths. The HM media is maintained along the first flow path. The valve mechanism includes an obstruction member movably retained within the housing and transitionable between opposing, first and second maximum points of travel. At the first maximum point of travel, the obstruction member closes the second flow path to permit airflow through only the first flow path. At the second maximum point of travel, the obstruction member permits airflow through both of the first and second flow paths. The HME unit is simple to use, yet provides an effective bypass state in which airflow freely progresses around the HM media. | 12-10-2009 |
20090301477 | HEAT AND MOISTURE EXCHANGE UNIT WITH CHECK VALVE - An HME unit including a housing, an HM media, and a check valve assembly. The housing forms a first port, a second port, and an intermediate section defining first and second flow paths fluidly connecting the first and second ports. The HM media is maintained within the intermediate section along the second flow path. The check valve assembly includes an obstruction member movably positioned within the intermediate section to selectively provide opened and closed positions. In the opened position, the first flow path is open relative to the obstruction member. In the closed position, the obstruction member closes the first flow path. In one mode, the obstruction member transitions to the opened position in response to gas flow in a flow direction from the second port toward the first port, and transitions to the closed position in response to gas flow in an opposite flow direction. | 12-10-2009 |
20090301478 | HEAT AND MOISTURE EXCHANGER, HEAT AND MOISTURE EXCHANGING DEVICE, AND MASK - A heat and moisture exchanger configured to be located between a respiratory system of a patient and an anesthesia circuit connected to an anesthesia apparatus, or a respiratory circuit connected to a respirator for maintaining a temperature and humidity of an aspired gas required to a patient under anesthesia or artificial respiration comprises a heat storage carrier material, and a moisture absorption and release material added to the heat storage carrier material. In the heat and moisture exchanger, at least one of density of the heat storage carrier material, number of cells of the heat storage carrier material, and an added amount of the moisture absorption and release material in the heat storage carrier material is set to decrease from the patient side to the side of the anesthesia apparatus or the respirator, along a flow direction of a respiratory gas in the heat storage carrier material. | 12-10-2009 |
20090301479 | FILTER AND/OR HME DEVICE FOR RESPIRATORY CIRCUITS COMPRISING A CONDENSATION TRAP - A filter and/or HME device including an upper shell suitable to be connected to ventilation means, a lower shell suitable to be connected to a tracheal or tracheostomy tube of a patient, a filter and/or HME element disposed between the upper shell and the lower shell and a condensation screen disposed in front of the filter and/or HME element and facing the lower shell wherein the condensation screen has a conical wall extending from the opposite part of the filter and/or HME element to produce, together with a portion of the lower shell a collection chamber for the condensation that forms. | 12-10-2009 |
20120097156 | POSITIVE AIRWAY PRESSURE THERAPY MASK HUMIDIFICATION SYSTEMS AND METHODS - The present inventions provide positive airway pressure therapy apparatus to humidify the pressurized air delivered to a user during various positive airway pressure therapies and corresponding methods. The positive airway pressure therapy apparatus may be configured to administer one or more positive airway pressure therapies, including: continuous positive airway pressure therapy (CPAP), bi-level positive airway pressure therapy (BPAP), auto positive airway pressure therapy (autoPAP), proportional positive airway pressure therapy (PPAP), and/or other positive airway pressure therapies. | 04-26-2012 |
20120152239 | Low profile heat and moisture exchanger device for tracheotomy and speaking valve - A heat moisture exchange device received on a speaking tube mounted on an end of a tracheotomy tube. The heat moisture exchange device has a housing in which the air moves in a turbulent manner and passes through a heat moisture exchange filter. | 06-21-2012 |
20120192863 | HUMIDIFICATION IN BREATHING CIRCUITS - A method for humidifying gas in a ventilator circuit | 08-02-2012 |
20120234318 | DEVICE FOR FILTERING BREATHING GAS - A device (FV) for filtering breathing gas has a housing (G) with a gas inlet (GE), a gas outlet (GA) and a filter (F), which is arranged in a first housing section (G | 09-20-2012 |
20120266873 | INTEGRATED POSITIVE AIRWAY PRESSURE APPARATUS - A gas delivery system that provides positive airway pressure therapy. A mask couples to a patient's face to deliver pressurized gas to an airway of the patient. The mask includes a flow generator system disposed on the mask and that pressurizes the gas, the flow generator including at least one motor. A controller controls the at least one motor. | 10-25-2012 |
20120304985 | CPAP SYSTEM WITH HEAT MOISTURE EXCHANGE (HME) AND MULTIPLE CHANNEL HOSE - A continuous positive airway pressure (CPAP) system provides positive airway pressure therapy. It has been recognized that users generally prefer to breathe freely rather than to fight the pressurized air when possible. A continuous positive airway pressure (CPAP) system provides positive airway pressure therapy when required, but allows the user to breathe freely with the mask on when positive airway pressure is not required. The system has a valve that moves between two positions to open and close the unassisted breathing vent and the outlet from the flow generator. | 12-06-2012 |
20120325205 | VENTILATION MASK WITH INTEGRATED PILOTED EXALATION VALVE - In accordance with the present invention, there is provided a mask for achieving positive pressure mechanical ventilation (inclusive of CPAP, ventilator support, critical care ventilation, emergency applications), and a method for a operating a ventilation system including such mask. The mask of the present invention includes a piloted exhalation valve that is used to achieve the target pressures/flows to the patient. The pilot for the valve may be pneumatic and driven from the gas supply tubing from the ventilator. The pilot may also be a preset pressure derived in the mask, a separate pneumatic line from the ventilator, or an electro-mechanical control. The mask of the present invention may further include a heat and moisture exchanger (HME) which is integrated therein. | 12-27-2012 |
20120325206 | VENTILATION MASK WITH INTEGRATED PILOTED EXHALATION VALVE - In accordance with the present invention, there is provided a mask for achieving positive pressure mechanical ventilation (inclusive of CPAP, ventilator support, critical care ventilation, emergency applications), and a method for a operating a ventilation system including such mask. The mask of the present invention includes a piloted exhalation valve that is used to achieve the target pressures/flows to the patient. The pilot for the valve may be pneumatic and driven from the gas supply tubing from the ventilator. The pilot may also be a preset pressure derived in the mask, a separate pneumatic line from the ventilator, or an electro-mechanical control. The mask of the present invention may further include a heat and moisture exchanger (HME) which is integrated therein. | 12-27-2012 |
20130068219 | BYPASS HEAT AND MOISTURE EXCHANGER - A heat and moisture exchanger (HME) device for respiratory therapy, the device comprising a housing defining a passageway for the flow of respiratory gas, where the housing can include a ventilator side port, a patient side port, a first pathway defined within the housing, and a second pathway defined within the housing, a medium located within the first pathway and a valve configured to selectably impede fluid flow through one of the first pathway and second pathway during use. The HME can further include a knob configured to position the valve. The housing can include a first sealing wall and a second sealing wall, where the valve is configured to abut the first sealing wall in a first valve position and to abut the second sealing wall in a second valve position. | 03-21-2013 |
20130081616 | TRACHEAL COUPLINGS AND ASSOCIATED SYSTEMS AND METHODS - A tracheal coupling for interfacing between a patient and a gases source, the connector comprising a patient port ( | 04-04-2013 |
20130098359 | NARES MASK AND SUPPORT APPARATUS - Embodiments of the present invention provide a nares mask and support apparatus (e.g., for use with a positive airway pressure therapy system) that may generate the desired mask retaining force while reducing or even eliminating the need for supplemental facial contact elements such as face-contacting straps or bands. The apparatus may include a first biasing element that biases a nares interface in a direction generally orthogonal to and towards the user's face. A second biasing element may bias the nares interface in a direction generally parallel to the face and towards the user's forehead. The biasing forces applied by the first and second biasing elements may thus produce a resultant force that biases the nares interface in a direction generally aligned with an axis of the nares. | 04-25-2013 |
20130104883 | CONTINUOUS POSITIVE AIRWAY PRESSURE (CPAP) APPARAUTS WITH ORIENTATION SENSOR | 05-02-2013 |
20130133645 | HEAT AND MOISTURE EXCHANGER - A heat and moisture exchanger of the present invention includes a casing defining a retaining space therein, and an air conditioning unit retained in the retaining space. The casing has a breathing port and an air flow unit that are adapted to communicate fluidly the retaining space, and an air valve unit that has an air hole formed in the casing, and that is adjustable from a closed state to an opened state. | 05-30-2013 |
20130186394 | RESPIRATORY VALVE APPARATUS - The invention relates to a pressure responsive respiratory valve apparatus for enabling positive pressure from a source of pressure to be applied to a user's airway, and allowing ingress of a breathable gas from an inlet port into a user's airway during inhalation and egress of expired tidal volume of air from the user's respiratory system to an exhalation port during exhalation. The invention minimises rebreathing of expired gas and optimizes delivery of pressurised breathable gas by venting gas only during exhalation, as well as addressing important user considerations including minimizing noise, pressure swine, and size. | 07-25-2013 |
20130239958 | BREATHING PROTECTOR - A breathing protector may include an inlet and an outlet, wherein an air flow may be configured to pass from the inlet to the outlet into a trachea. A filter housing may include an inner housing part, an outer housing part, and a filter body. The inner housing party may include the outlet, a tracheal tube fitting and a support structure extending longitudinally and distally from the tracheal tube fitting. A base plate may be arranged in a proximal zone of the tracheal tube fitting and extend radially outwards from the tracheal tube fitting. The outer housing part may include the inlet and form a cage enclosing the support structure. The filter body may be arranged between the support structure and the outer housing part. | 09-19-2013 |
20130247905 | BREATHING SYSTEMS | 09-26-2013 |
20130255672 | TRANSPORTING LIQUID IN A RESPIRATORY COMPONENT - A respiratory component coupled with a breathing circuit, the respiratory component including at least one groove disposed upon a surface of the respiratory component, wherein the respiratory component is not a heater wire. | 10-03-2013 |
20140109901 | RESPIRATORY VALVE APPARATUS - The invention relates to a pressure responsive respiratory valve apparatus for enabling positive pressure from a source of pressure to be applied to a user's airway, and allowing ingress of a breathable gas from an inlet port into a user's airway during inhalation and egress of expired tidal volume of air from the user's respiratory system to an exhalation port during exhalation. The invention minimises rebreathing of expired gas and optimizes delivery of pressurised breathable gas by venting gas only during exhalation, as well as addressing important user considerations including minimizing noise, pressure swine, and size. | 04-24-2014 |
20140123977 | SLEEP-ACTIVATED CPAP MACHINE - A system and method for delaying the start of the continuous positive air pressure therein making it easier for a user to fall asleep. The system delivers pressurized gas to the airway of a patient. The system has a gas flow generator for providing a flow of gas and a mask for delivery of gas flow to an airway of a patient. The mask has an exhaust port being continuously open and having suitable flow resistance for maintaining a pressure in the cavity. The mask has a breathing port adaptable to open when no flow of pressurized air for allowing free breathing by the user. A hose extends between the gas flow generator and the mask for providing a flow of gas. The system has a mechanism for turning the flow of gas on at a time distinct from turning on the apparatus. | 05-08-2014 |
20140150779 | BREATHING PROTECTOR - A breathing protector for use in a stoma of a laryngectomized or tracheotomised person is provided. This breathing protector is provided with an inlet and an outlet, such that an air flow in use will pass from the surroundings of said person through said inlet to said outlet, into trachea of said person. The breathing protector further comprises a heat-moisture exchanger ( | 06-05-2014 |
20140216445 | COVERING SHEET - A covering sheet for covering a skin adhesive surface of a device for holding a tracheostoma device over a tracheostoma of a patient may include a central/medial element for covering the central/medial part of the skin adhesive surface of the device. The covering sheet may include first and second elements arranged laterally of the central/medial element. Lateral peripheral borders of the central/medial element may be positioned adjacent medial peripheral borders of the first and second elements. The peripheral borders may be defined by division lines. | 08-07-2014 |
20140216446 | DEVICE AND METHOD FOR PROVIDING A BREATHING GAS STREAM | 08-07-2014 |
20140251322 | BREATHING SYSTEMS - A heat exchange apparatus ( | 09-11-2014 |
20140305431 | EXCHANGER ASSEMBLY FOR RESPIRATORY TREATMENT - An exchanger conduit permits temperature and/or humidity conditioning of a gas for a patient respiratory interface. In an example embodiment, a conduit has a first channel and a second channel where the first channel is configured to conduct an inspiratory gas and the second channel configured to conduct an expiratory gas. An exchanger is positioned along the first channel and the second channel to separate the first channel and the second channel. The exchanger is configured to transfer a component (e.g., temperature or humidity) of the gas of the second channel to the gas of the first channel. In some embodiments, an optional flow resistor may be implemented to permit venting at pressures above atmospheric pressure so as to allow pressure stenting of a patient respiratory system without a substantial direct flow from a flow generator of respiratory treatment apparatus to the patient during patient expiration. | 10-16-2014 |
20140311486 | BREATHING APPARATUS AND METHOD FOR THE USE THEREOF - A breathing assistance apparatus includes an inner volumetric member pressurizable from a first pressure to a second pressure and an outer volumetric member surrounding at least a portion of the inner expandable volumetric member. The inner volumetric member pressurizes the outer volumetric member as the inner volumetric member is pressurized from the first pressure to the second pressure. In another embodiment, a breathing assistance apparatus includes exhalation and inhalation chambers with respective biasing members providing for the exhalation chamber to apply a pressure to the inhalation chamber and thereby provide assisted inhalation. Methods for assisting breathing are also provided. | 10-23-2014 |
20140352691 | ADJUSTABLE AND BIASED-OPEN UNIDIRECTIONAL SPEAKING VALVE - A speaking valve for management of a patient's airway comprising a body rotatably and removably attachable to a tracheotomy tube, the body having a first end communicable with the tracheotomy tube and a second end distal from the first end, an offset opening formed in the second end, a ramp disposed within the body, a ball having a diameter disposed within the chamber, the ball being adapted to be guided up and down the ramp and able to partially close the opening in the second end of the body, and the body and hence the chamber therein, at the option and control of the patient, wherein the ball is adapted to move up and down the ramp opening and partially closing the opening in the second end of the body and, as selected, exhalation by the patient proceeds through the patient's upper respiratory system and facilitates speaking by the patient. | 12-04-2014 |
20150034079 | Ventilation Mask with Integrated Piloted Exhalation Valve - A mask for achieving positive pressure mechanical ventilation (inclusive of CPAP, ventilator support, critical care ventilation, emergency applications), and a method for a operating a ventilation system including such mask. The mask includes a piloted exhalation valve that is used to achieve the target pressures/flows to the patient. The pilot for the valve may be pneumatic and driven from the gas supply tubing from the ventilator. The pilot may also be a preset pressure derived in the mask, a separate pneumatic line from the ventilator, or an electro-mechanical control. The mask of the present invention may further include a heat and moisture exchanger (HME) which is integrated therein. | 02-05-2015 |
20150083119 | TRACHEOSTOMA VALVE - A tracheostoma valve for attachment to a tracheostoma valve plaster may include a tubular base portion with a proximal opening through which inhaled and exhaled air enters and exits, respectively. A distal lid portion may be arranged distally of the tubular base portion. The distal lid portion may have a distal opening through which inhaled and exhaled air enters and exits, respectively. The tracheostoma valve may have a valve flap member for closing the distal opening via interaction between a front side of the valve flap member and an edge of the distal opening. A valve retaining arm may be included for interaction with the valve flap member to prevent the valve flap member from interacting with the distal opening. | 03-26-2015 |
20150335846 | PATIENT INTERFACE - A patient interface for delivery of a supply of pressurised air or breathable gas to an entrance of a patient's airways includes a frame member, a cushion assembly provided to the frame member, and an anterior wall member repeatedly engageable with and disengageable from the cushion assembly. The frame member includes connectors operatively attachable to a positioning and stabilizing structure. The cushion assembly includes a seal-forming structure and a void defined by an anterior surface of the cushion assembly. The anterior wall member has a predetermined surface area to seal the void of the cushion assembly and form a gas chamber when the anterior wall member and the cushion assembly are engaged. The void of the cushion assembly is sized such that the patient's nose and/or mouth is substantially exposed when the anterior wall member is disengaged from the cushion assembly thereby improving breathing comfort of the patient. | 11-26-2015 |
20160008566 | PATIENT INTERFACES WITH CONDENSATION REDUCING OR COMPENSATING ARRANGEMENTS | 01-14-2016 |
20160015925 | FACIAL INTERFACE AND HEADGEAR SYSTEM FOR USE WITH VENTILATION AND POSITIVE AIR PRESSURE SYSTEMS - The present disclosure relates to a mask assembly system that has an adjustable headgear system with adjustable sidepiece for conforming to a user's face. Additionally, the mask assembly allows for detachable nasal pillows to be rotated about multiple degrees of freedom. | 01-21-2016 |
20160022949 | COMPONENTS FOR MEDICAL CIRCUITS - An expiratory limb is provided that is configured to remove humidified gases from a patient and configured to provide improved drying performance by providing a tailored temperature profile along the limb. Limbs for providing humidified gases to and/or removing humidified gases from a patient are also provided, the limbs having improved gas residence time at constant volumetric flow rate. The improved residence time can be achieved by providing a limb comprising multiple lumens. | 01-28-2016 |
20160051792 | RESPIRATORY VALVE APPARATUS - The invention relates to a pressure responsive respiratory valve apparatus for enabling positive pressure from a source of pressure to be applied to a user's airway, and allowing ingress of a breathable gas from an inlet port into a user's airway during inhalation and egress of expired tidal volume of air from the user's respiratory system to an exhalation port during exhalation. The invention minimises rebreathing of expired gas and optimizes delivery of pressurised breathable gas by venting gas only during exhalation, as well as addressing important user considerations including minimizing noise, pressure swing, and size. | 02-25-2016 |
20160082219 | GAS-TREATMENT DEVICES - An HME has exchange elements ( | 03-24-2016 |
20160136368 | AUTOMATED DRUG DISPENSING SYSTEMS WITH AUTOMATED HME BYPASS FOR VENTILATOR CIRCUITS - Dispensing systems for a ventilator circuit having a ventilator flow circuit with a normal inhalation flow path with a heat and moisture exchanger (HME), a flow sensor in communication with the ventilator circuit, an automated drug dispensing system with an actuator and a pressurized canister residing upstream of the HME, a bypass inhalation flow path residing downstream of the pressurized canister, and at least one electromechanical valve residing in the inhalation flow path to selectively open the valve which can be normally closed to define a closed bypass path. At least one controller opens the at least one electromechanical valve to open the bypass inhalation flow path and close the normal inhalation flow path through the HME only when the flow sensor indicates air flow is in an inhalation direction. Once the valve is open, the actuator dispenses medication through the bypass inhalation flow path to the patient. | 05-19-2016 |
20160158474 | FACIAL MASK WITH INTERNAL SUPPORT STRUCTURE FOR USE WITH VENTILATION AND POSITIVE AIR PRESSURE SYSTEMS - The present disclosure relates to a positive airway interface system which includes a facial mask having an internal support structure and an external shell disposed over the internal support structure and a plurality of attachment mechanisms provided about an external surface of the external shell. The positive airway interface system can thus be configured to transform a sealing force applied by a strap assembly in a uniform-like manner so as to sealingly engage the facial mask around a user's mouth and nose when a sealing force applied to the attachment mechanisms. | 06-09-2016 |
20160158475 | HYBRID POSITIVE AIRWAY INTERFACE SYSTEM FOR USE WITH VENTILATION AND POSITIVE AIR PRESSURE SYSTEMS - The present disclosure relates to a positive airway interface system which includes a mouth interface having an internal support structure and an external shell disposed over the internal support structure and a plurality of attachment mechanisms provided about an external surface of the external shell. The positive airway interface system also includes a nasal interface having a pair of nasal pillows configured to sealingly engage with a user's nares. This positive airway interface system can be configured to transform a tensile sealing force applied by a headgear strap assembly in a uniform-like manner so as to sealingly engage the mouth interface around the user's mouth and the pillows with the user's nose when a sealing force applied by the headgear strap assembly. | 06-09-2016 |
20160175552 | HEAT AND MOISTURE EXCHANGER FOR A PATIENT INTERFACE | 06-23-2016 |
20160250438 | HME AND COMPACT BREATHING APPARATUS | 09-01-2016 |
20180021538 | HEAT AND EXCHANGE MOISTURIZER (HME) HAVING ROTATABLE BYPASS CHANNEL FOR USE IN A MEDICAL VENTILLATION SYSTEM | 01-25-2018 |