Abstract: An patient interface that reliably maintains a seal between it and the patient. The patient interface advantageously includes a deformation portion at its point of connection with an air supply, with the deformation portion being relatively more deformable than the other portions of the patient interface in order to resist torque applied by the air supply from disturbing the seal between the patient interface and the patient. While the air supply is pivotably connected with the patient interface and is pivotable about a pivot axis, a torque applied about an axis other than the pivot axis results in deformation of the deformation portion and thus advantageously avoids breaking the seal between the patient interface and the patient.

Abstract: An emergency oxygen supply device for an aircraft comprises an oxygen pressure tank, and at least one oxygen mask which is conductively connected thereto. At least two electrically actuatable and activatable shut-off valves which are arranged parallel to one another are arranged in the conduit from the oxygen pressure tank to the at least one oxygen mask. Of these shut-off valves, at least one shut-off valve has an NO-function and at least one shut-off valve an NC-function.

Abstract: In accordance with at least one exemplary embodiment, a ventilation system for providing gas under a first pressure to the nose of a user and second pressure to the mouth of a user is disclosed. A ventilation system can include a flow generator that can be connected to a gas supply tube. The gas supply tube can be in fluid communication with a ventilation interface. At least a portion of the gas supply tube can have a divider within the channel of the tube forming a nasal passageway and an oral passageway. A nasal breathing chamber and an oral breathing chamber can be defined in the ventilation interface. The nasal breathing chamber can be in fluid communication with the nasal passageway. The oral breathing chamber can be in fluid communication with the oral passageway.

Abstract: This disclosure describes systems and methods for reducing nuisance alarms associated with monitoring non-physiological parameters in a ventilatory system. Non-physiological parameters may include, but are not limited to, parameters that are internally monitored by the ventilator based on pre-configured ranges dictated by the manufacturer, by an applicable protocol, or by the clinician. Embodiments described herein seek to mitigate nuisance alarms by basing alarm conditions, at least in part, on an integral threshold such that an alarm is not generated when a monitored parameter briefly falls outside an acceptable range by a slight degree, but such that an alarm is generated when a monitored parameter falls outside an acceptable range by a more significant magnitude and/or duration.

Abstract: The present invention provides a symmetrical face mask suitable for use with one hand that allows an operator to provide a reliable seal with the patient's face with his/her hand and arm in an anatomically favorable position for application of a user's physical strength. In general, a user may reach at an acute angle to the plane of their chest and engage the invention mask with their hand in a manner the user may shake another person's hand, i.e., with a distal portion of their radius and ulna arranged essentially vertically so that side to side motion of the hand translates to forward and rearward motion of a mask shell while a user reserves full bi-directional rotational capability of their arm for forward or rearward rotation compression of the mask shell while, at the same time, reserving full and lever-efficient, bi-directional pushing and pulling range of a user's arm for greater pressure of the mask shell to a right or left side of a user's fleshy cheek.

Abstract: A respiratory mask assembly for delivering breathable gas to a patient includes a frame having a front surface and a rear surface adapted in use to face the patient. The frame includes a main body providing an aperture therethrough for the introduction of breathable gas into a nasal breathing cavity. An elbow assembly is swivelably coupled to the front surface of the frame. The elbow assembly includes a swivel elbow that defines an intake port and an exhaust port separated from the intake port using a baffle. The elbow assembly includes an end portion that interfaces with the aperture of the frame.

Abstract: A breathing assistance apparatus is used to deliver gases to a wearer. The breathing assistance apparatus includes: a main body unit having a main body and two side straps connected to the main body, each of the side straps having a strap body, at least one side cushion projecting from the strap body and adapted for contact with the wearer's head, and a buffering space disposed within the side cushion; a head strap unit connected to the side straps; a nasal prong unit mounted to and disposed behind the main body; and an intake unit mounted to and disposed in front of the main body.

Abstract: A personal respiratory protection device that comprises a multilayer body including a stiffening layer, filter media layer(s) and inner or outer cover layer(s). The mask body includes a central portion between first and second portions, the central portion being defined by a fold, bond, weld, seam, or combination thereof and having a width of about 160 to 220 mm and a height of about 30 to 110 mm. The device is capable of being folded flat for storage with the first portion in at least partial face-to-face contact with a surface of the central portion and the second portion contacting a surface of the first portion. When unfolded for use the device is capable of forming a cup-shaped off the face air chamber over the nose and mouth of a wearer.

Abstract: A tube (23) for inflatable harness (1) of a breathing mask (3), the tube (23) is gas impermeable, supple and has an inner surface (22) and an outer surface (24), wherein the inner surface (22) of the tube (23) includes a plurality of protrusions (30).

Abstract: A patient interface device (30, 230, 530, 630, 730) that includes a support member (34, 234, 334, 434, 534, 634) comprising a central support portion and of cheek mount supports (70) coupled to the central portion. Each cheek mount support is configured to apply a force a side a user's cheekbone while applying substantially no force over an apex of such a user's cheekbone responsive to the patient interface being worn by a user. A seal member (36, 236, 336, 436, 536, 636, 736) is coupled to the support portion. The seal member is adapted to seal against a surface of a user to communicate a flow of gas with an airway of such a user. A conduit coupling member (38, 355, 438a, 438b, 538) is coupled to the seal member.

Abstract: A respiratory mask assembly for delivering breathable gas to a patient includes a frame having a front surface and a rear surface, opposite the front surface, and adapted in use to face the patient. The frame defines an inner wall and an outer wall extending from the rear surface, the inner and outer walls being spaced to define a channel therebetween. A cushion is removably attachable to the frame such that the cushion and frame are repeatably engagable with and disengagable from one another. The cushion includes a side wall to be inserted into the channel of the frame, the side wall having a first interlocking surface that engages a second interlocking surface provided in the channel when the cushion and frame are engaged with one another. The first and second interlocking surfaces interlock with one another to removably attach the cushion to the frame.

Abstract: A breathing mask arrangement for delivering breathable gas to a patient includes a frame, a mask having a frame contacting portion and a patient contacting portion, and a forehead support supporting forehead padding that is structured to engage a patient's forehead. The forehead padding of the forehead support is integrally formed in one piece along with the patient contacting portion.

Abstract: A mask for a system, method, and apparatus for air delivery. A formable mask having an oxygen supply port and exhaled air removal components for the delivery of oxygen enriched air to a user. The formable mask includes formable components and materials to increase comfort and minimize chafing of a wearer. The formable mask further includes a harness to hold the mask in position on a user's head, where said harness minimizes chafing of the user. An oxygen delivery system uses the formable mask and oxygen supply components. Oxygen supply components include a flow rate throttling valve and an O2 reservoir to conserve O2 use and insure O2 availability to a patient.

Abstract: A patient interface system for delivering a flow of breathable gas to a patient includes a patient interface structure configured to sealingly engage the patient's nares; a pair of strips configured to be connected to opposite sides of the patient interface structure; and adhesive configured to secure the patient interface structure in sealing engagement with the patient's nares. The adhesive may be provided on the strips, and the strips are configured to be adhered to sides of the patient's nose by the adhesive.

Abstract: A system, method, and apparatus for modified air delivery. A formable mask having an oxygen supply port and exhaled air removal components for the delivery of modified air to a user. An oxygen delivery system uses the formable mask and oxygen supply components. Oxygen supply components include a flow rate throttling valve and an O2 reservoir to conserve O2 use and insure O2 availability to a patient. The system modifies the air for delivery using an air modification module to condition the air for delivery of aerosolized particles to the user.

Abstract: A versatile, multi-port, intubation-permitting oxygen mask is provided including two diaphragms (nasal and oral) each configured with a continuous, flexible, modifiable membrane from which an instrument-access port may be manually constructed, when and if needed. The novel oxygen mask preferably includes a multiple-inlet port having a standard oxygen tube connector and an interchangeable breathing-therapy device connector, a carbon dioxide sampling port, an exhaust port, and a nose clip. The mask can be worn as a standard oxygen mask during traditional oxygen therapy, yet quickly converted into an intubation mask. The clinician manually perforates the nasal and/or oral diaphragm to create a point and size of entry perfectly matched to the requirements for a variety of procedures that may be performed involving nasally or orally introduced scopes or probes—without disturbing the ongoing benefits of increased oxygen saturation and continuous monitoring of expired gases.

Abstract: The ventilation interface for sleep apnea therapy interfaces a ventilation device to the patient's airways. The ventilation interface includes a pair of nasal inserts made from flexible, resilient silicone which are oval shaped in cross-section and slightly tapered from a base proximal the ventilation supply to the distal tip end. A bead flange is disposed about the exterior of each insert at the distal end of the insert. A bleed port for release of exhaled air is defined through a conical vent projecting normally to the path of the incoming air flow, and continues through a nipple extending to the exterior of the air conduit. In one embodiment, a pair of nasal inserts are integral with a nasal cannula body, with bleed ports axially aligned with each insert. In another embodiment, each insert is independently connected to a separate, thin-walled, flexible supply line.

Abstract: An apparatus for deploying oxygen masks that includes a pre-packaged modular system that does not require manual repacking of oxygen masks by aircraft technicians. The cartridge is for use with a manifold having a passageway in fluid communication with a source of breathable gas. The cartridge includes an end wall, a sidewall extending from the end wall and terminating at a distal end adjacent to an opening. A flexible member defines a chamber inside the cartridge. The chamber is in fluid communication with the passageway when the cartridge is coupled to the manifold. The flexible member has an outlet. A mask assembly is disposed inside the cartridge. The mask assembly has a hose coupled to the outlet of the flexible member. A cover is removably attached to the distal end of the at least one side wall.

Abstract: A patient interface device (8) for delivering a flow of breathing gas to an airway of a patient is provided that includes a patient contacting component (9, 90) having a patient contacting surface structured to engage the face of the patient when the patient interface device is donned by the patient, the patient contacting surface also including a plurality of ribs (40, 52, 62, 72, 82, 96) extending therefrom. The patient contacting component may be, without limitation, a mask having a mask cushion, a forehead support having a forehead cushion, a cheek pad or a chin pad.

Abstract: A device and method of providing positive pressure support that employs a patient interface device (2, 102) having a mask (6, 106) and an adjustment arm (26, 126) coupled to the mask. The adjustment arm includes an extension member (28) extending from the mask. The mask engages the face of the patient and the adjustment arm is spaced from and not in engagement with the head of the patient. The method includes adjusting the pressure applied to the patient by the mask by adjusting a strapping force applied to the patient interface device without causing the adjustment arm to engage the head of the patient, as well as providing a flow of gas to the patient through the mask without causing the adjustment arm to engage the head of the patient.

Abstract: A nasal assembly for delivering breathable gas to a patient includes a frame having an integrally formed first connector portion. A nozzle assembly includes a gusset or base portion and a pair of nozzles. At least one inlet conduit is structured to deliver breathable gas into the frame and nozzle assembly for breathing by the patient. A pair of second connector portions are removably and rotatably connected to respective first connector portions of the frame and are in communication with respective inlet conduits, e.g., directly or via angle connectors. A headgear assembly is removably connected to the pair of second connector portions and/or the angle connectors so as to maintain the frame and the nozzle assembly in a desired adjusted position on the patient's face.

Abstract: A mask system for use between a patient and a structure to deliver a breathable gas to the patient includes a mask assembly including a frame, a cushion provided to the frame, and optionally an elbow provided to the frame. Headgear is removably attached to the mask assembly to maintain the mask assembly in a desired position on a patient's face. The headgear includes a top strap, crown straps which cooperate to form a round shape adapted to accommodate a crown of the patient's head, and bottom straps.

Abstract: According to the present device, system, and method, the respiratory assistance mask comprising a hollow body bounding an internal chamber provided with a respiratory gas inlet and outlet, and a bearing member is remarkable in that it also comprises: a flexible membrane inserted on said bearing member and being able to be interposed between said bearing member and the face of said patient: and a multi-perforated internal skirt inserted, thru one of its two contours, on said bearing member and surrounded, at least partially, by said flexible membrane, the free contour of said skirt extending in direction of said internal chamber.

Abstract: A patient interface that reliably and comfortably seals a user's face by providing an oral-nasal mask that includes an integrated nasal interface. The patient interface includes a seal member having an oral cushion portion configured to surround the user's mouth and a nasal interface portion that provides an interface with the user's nose. The seal member, including the oral cushion portion and the nasal interface portion, is a unitary member. Finally, the nasal interface portion remains below the bridge of the nose.

Abstract: Embodiments of a face mask with a port configured to allow flow through the face mask at least in a direction towards a user, generally defined as an adhesive side or user side of the mask are provided, along with methods for using the same. In one embodiment, a face mask includes a breathable, flexible sheet having a first side and a second side, an adhesive disposed on a perimeter of the second side, the adhesive circumscribing a center region of the sheet and a port comprising a center region of the sheet. The port is configured to allow flow through the face mask at least in a direction towards a user without removal from the user.

Abstract: A patient interface device (10, 10?, 62, 62?, 102, 152, 162, 172) is provided that includes a patient sealing assembly (12, 64, 104), such as a mask having a rigid shell and a cushion coupled to the rigid shell, a forehead support (26, 72, 118) coupled to the patient sealing assembly, and a hinge assembly (40, 40?, 84, 84?, 124, 154, 164, 174) provided between a top portion of the patient sealing assembly and the forehead support.

Abstract: 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.

Abstract: The present disclosure provides a flexible oxygen supply system which can easily be adapted to different seat layouts and which is significantly improved with regard to test and maintenance possibilities. An oxygen module according to the present disclosure generally comprises an oxygen source, a mask and a tube between the oxygen source and a mask. The oxygen module further comprises fastening elements for fastening in a supply duct of an aircraft, and a locking element by means of which the cover of the oxygen module can be locked.

Abstract: 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.

Abstract: A patient interface device (10) that includes a patient sealing element (12) and a tubing assembly (14) fluidly coupled to the patient sealing element for delivering a breathing gas to the patient sealing element. The tubing assembly is adapted to be worn on a head of a user and includes at least one rigid or semi-rigid straight segment (20) fluidly coupled to at least one flexible bellows segment (18). The tubing assembly may be provided within a headgear component (16) used to attach the patient interface device to the patient's head.

Abstract: A disposable anesthesia face mask comprising a shell member having an annular flange and a do-nut shaped pneumatic sealing cushion attached to the shell member annular flange. The shell member and its flange are “pear-shaped” defining a nasal portion of first transverse extent, a mouth portion of second transverse extent, and an under-the-chin engagement portion of third transverse extent where the second transverse extent is greater than the first transverse extent and the third transverse extent is greater than the second transverse extent.

Abstract: A patient interface device that includes a mask shell and a cushion assembly. The cushion assembly includes a seal cushion and a support cushion. The seal cushion contacts a first area of a patient's face to form a seal therewith. The support cushion defines a second area over a face of such a patient when the patient interface device is being worn. The second area overlaps at least a portion of the first area.

Abstract: A nasal cannula for use in a system for providing a flow of respiratory gases to a user is described. The nasal cannula comprises a body made from a pliable material. The body has an inlet and at least one nasal prong fluidly connected to the inlet. In use a conduit providing a flow of gases to the cannula is connected to the inlet, and the nasal prong is inserted into a user's nostril. The cannula is arranged to direct the flow of gases from the nasal prong towards the front wall of the user's nasal passage within the user's nose.

Abstract: A kit for fitting a patient interface device (10) to the naris of a patient. The patient interface device employs a replaceable nasal pillow (46). The kit comprises a plurality of nasal pillows each having a characteristic that varies from one of the plurality of nasal pillows to another of the plurality of nasal pillows. Each of the nasal pillows comprises a base portion (62), a casing (65) and a fill material (66). The base portion is structured to be disposed on a portion of the patient interface device. The casing is coupled to the base in a manner which defines a sealed cavity therein. The casing includes an outer portion (65) structured to sealingly engage a naris of a patient and an inner portion (67). The fill material is disposed in the sealed cavity defined by the casing and the base.

Abstract: A patient interface that is comfortable for a user to wear is disclosed. The patient interface includes a forehead rest and cushion. In particular the cushion includes a deformable resilient member that when compressed creates a uniformly and gradually increasing force while evenly distributing the pressure on the forehead of the patient.

Abstract: A mask assembly includes nasal interface, e.g., in the form of a pair of nozzles, at least one joining portion provided to each side of the nasal interface, and a headgear coupled or otherwise provided to or extending from the joining portion, that is looped around the patient's ears. The joining portion is small and compact and may be readily affixed to an existing nasal arrangement, i.e., retrofitted. The joining portion and the headgear can be formed in separate components, or they can be formed as an integral or one-piece arrangement.

Abstract: A respiration assist mask having an input gas feed tube, a ventilation interface, a facial interface and nasal inserts. The gas feed tube can connect to the ventilation interface and form a seal. The ventilation interface may be joined with the facial interface to form a seal between the ventilation interface and the facial interface, as well as between the facial interface and the face of a user. Additionally, nasal inserts may be inserted into a portion of the facial interface and form a seal between the inserts and the facial interface.

Abstract: A nasal interface and method for delivering continuous positive airway pressure in newborns and infants are provided herein using a universal fit nasal interface that is easily adapted and operated together with a generic nasal cannula.

Abstract: A user interface comprising a non-sealing nasal cannula and a mask arranged about the nasal cannula, the mask including a seal configured with a user's face to allow the interface to be pressurised, the cannula configured to deliver breathing gases to the nares of a user at a flow rate exceeding the intended user's peak inspiratory flow requirements so that the mask and the user's pharynx are flushed continuously with fresh breathing gases to reduce dead space.

Abstract: An integrated respiratory ventilation system and method for its calibration is described. The system includes a ventilator having air conduits, transducers adapted to emit signals proportional to the level of air pressure or air flow within the air conduits, and inspiration, expiration and exhaust ports. A processor-controlled calibrator is in communication with one or more of the air conduits. A preferred calibrator includes a water-filled outer column and a vertically aligned inner column extending into the outer column, the inner column having an upper end in communication with at least one of the ports. A processor controls the opening and closing of the ports and the level of air pressure in, and air flow from, the inner column to measure the level of transducer signals at two known pressures and two known flows. The processor uses the measured transducer signals to calibrate the transducer.

Abstract: In a mask for patient ventilation, a frame portion is included for surrounding a respiratory opening of a patient. A retention strap is coupled with the frame portion for maintaining positive pressure between the frame portion and the respiratory opening of the patient. A removable insert is configured to physically attach and detach from the frame portion without requiring removal of the frame or the retention strap from the patient.

Abstract: A non-invasive ventilation patient interface comprises a fresh gas entry port, a frame, and a zygomatic facial interface. The fresh gas entry port is configured for coupling with a fresh gas supply. The frame is configured for coupling with a head strap system, wherein the head strap system is configured for supplying a securing force to secure the patient interface in a position over a respiratory opening of a patient. The zygomatic facial interface is coupled with the frame and configured for spreading the securing force away from a nasal bridge of the patient and onto left and right zygomatic arch regions of the patient.

Abstract: A patient interface for patient ventilation comprises a frame portion and a head strap system. The frame portion is for surrounding oral and nasal regions of a patient. The head strap system is configured for coupling from a left lateral portion of the patient interface, around a posterior skull of a patient, and to a right lateral portion of the frame portion such that in response to donning of the patient interface, the head strap system supplies a securing force to secure the frame portion in a position over nasal and oral cavities of the patient, the head strap is also configured to retain a head-shape when not in use to enable intuitive donning on the patient.

Abstract: A mask for patient ventilation comprises a frame portion, a front portion, a retention strap, and a gas delivery orifice. The frame portion is for surrounding a respiratory opening of a patient. The front portion is coupled with the frame portion and covers the respiratory opening region. The retention strap is for maintaining positive pressure between the frame portion and the patient. The gas delivery orifice is coupled with the frame portion and configured such that the gas delivery orifice is lateral to the front portion.

Abstract: A patient interface having a forehead support adjustably. The forehead support assembly includes a support arm that is adjustably mounted to the mask shell, thereby allowing the adjustment of the distance between the forehead support bracket and the mask shell in order to adjust for patients of different sizes. A forehead support bracket is pivotally connected to the support arm. The pivoting forehead support bracket is self-aligning to allow the forehead pad to remain parallel to the patient's forehead at all times, thus enhancing comfort and stability. The forehead support bracket is removable from the support arm, allowing the headgear (with support bracket attached) to be donned separately from the mask and support arm. The forehead support bracket in one embodiment has a forehead pad formed from the headgear itself.

Abstract: This invention is directed to a protective headgear system which includes a relatively light weight, substantially rigid, headgear structure which may include an internal, adjustable headband. The system includes at least one filter which is attachable to the headgear structure to cover the structure and a filter protector mounted thereon. A fan mechanism is mounted on the headgear structure to draw air into the headgear structure through the filter means. A power supply selectively powers the fan. A facial shield is attachable to the headgear structure to cover the face of the wearer to maintain non-contaminating conditions relative to the wearer. A flexible cuff or hood is attachable to the facial shield to enclose the lower opening of the lens and provides protection for the wearer through which air can be exhausted.

Abstract: A cockpit oxygen mask includes a mask body, an oxygen inhalation valve, a mixed air inhalation valve, an exhalation valve as well as a control device. At least the oxygen inhalation valve is signal-connected to the control device. The oxygen inhalation valve is designed as an electromagnetically actuatable valve, and includes at least one through flow path which may be closed by a magnetically movable valve body, wherein the through flow path is limited by a magnetizable wall, and wherein the wall includes at least one discontinuous location which deforms a magnetic field produced in the wall.

Abstract: Cushions for respiratory face masks have a frame-connecting portion, a face-contacting portion, and a gusset portion disposed between and joining the frame-connecting and face-contacting portions. The gusset portion preferably includes at least one perimetrical region which having a laterally projecting exterior gusset section and a laterally projecting interior gusset section. According to one aspect, the laterally projecting exterior and interior gusset sections are disposed about the entire perimeter to the gusset portion so as to establish a substantially constant widthwise dimension thereof about the gusset's entire perimeter.

Abstract: An air delivery system for providing a supply of air from a source of air at positive pressure to an interfacing structure located at the entrance to the airways of a patient includes a manifold adapted to connect with the supply of positive air pressure and at least one tube connected to the manifold and adapted to deliver the supply of air to the interfacing structure. Each tube is structured to allow movement between an open phase in which the tube allows the passage of air and a collapsed phase in which the tube is collapsed. Each tube is structured such that weight of a typical patient's head against bedding apparel is sufficient to collapse the tube from the open phase to the collapsed phase.

Abstract: 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.