Abstract: A mouth seal assembly for use with a nasal mask system includes a mouth seal adapted to form a seal with the patient's mouth. The mouth seal is substantially independent from a supply of pressurized air from the nasal mask system. An anti-asphyxia valve may be provided to either the mouth seal over the patient's lips or the nasal mask system. A strap arrangement may support the mouth seal in a desired position on the patient's face in use.

Abstract: The breathing assistance apparatus has a patient interface with a body section adapted to cover the nose, or nose and mouth of the patient. The apparatus includes a sealing interface, including at least an outer sealing member. The outer sealing member has a periphery that is attached to the body section in a sealing manner. The periphery is substantially rigid compared to the remainder of the outer sealing member. The outer sealing member is adapted to substantially seal around the facial contours of the patient to provide a sealed fluid communication to the respiratory tract of the patient. The sealing interface may also include an inner sealing member.

Abstract: A valve assembly (20) for a respirator comprises a valve body (25) having a valve outlet portion and a valve inlet portion which together define a valve cavity (30) for a valve mechanism (24) permitting gas flow from the valve inlet portion to the valve portion member, an air purge means comprising a purge inlet, connectable to an air pressure supply means, an air purge outlet (27) and an air deflection means (28) in which the deflection means is spatially arranged relative to the valve mechanism and purge outlet so that, in use, air exiting the purge outlet and incident the air deflection means provides a curtain of air over the valve mechanism.

Abstract: A CPAP device includes an air stream generator for generating positive pressure, a face mask connected to the air stream generator through a flow supply catheter, a pressure sensor measuring pressure in the face mask, a control circuit controlling the air stream generator, and a pressure detection pipe having a first side and a second side. The pressure sensor is connected to the second side of the pressure detection pipe to measure pressure of the detection hole formed at the first side of the pressure detection pipe and outputs the measured pressure value to the control circuit. The control circuit distinguishes average positive pressure from pressure caused by spontaneous breathing of patient according to values of the pressure in the face mask, which are input from the pressure sensor, and controls a speed of the air stream generator such that preset positive pressure is supplied to the patient.

Abstract: Method and device for scavenging tainted escape gas at a location proximate the patient's mouth (24) before that gas diffuses into, or otherwise reaches the personal breathing space (32, 35) of attending health care providers (38, 39). The scavenging device (50) includes, but is not limited to a suction arrangement (52) suspendable from a patient's nasal mask (40) used for administering gaseous analgesia or anesthetic such as nitrous oxide to the patient (20). A suction inlet (54) is positionable proximate the patient's mouth (24) and an exhaust outlet (56) is provided that is interconnectable with a vacuum source (46).

Abstract: A gas-powered resuscitator is operable either in a manual mode or an automatic mode. The resuscitator includes an oscillatory timing valve (14) having an outlet (23) connected to a bi-stable valve (25), the operation of which is piloted by a manual valve (16). The outlet (26) of the bi-stable valve (25) connects to the outlet (2) of the resuscitator via a rotatable control (32) and a patient valve (41). The outlet (26) of the bi-stable valve (25) also connects to the control inlet (34) of the timing valve (14). The manual valve (16) has a button (62) that can be pushed down manually in the manual mode or can be held down in the automatic mode by rotating a locking ring (262). The maximum duration of cycles is limited by operation of the timing valve (14), whether the resuscitator is operated manually or automatically.

Abstract: A retractable tube for use in a respiratory apparatus for delivering a pressurized flow of breathable gas to a patient has an internal diameter of about 30 mm or less, a weight of about 500 g/m or less, and an unextended length of about 2 m or less. The retractable tube includes a portion that is extensible in a range of about 40%-400% in response to force applied to the tube, and the extensible portion is configured to return the tube to its unextended length in the absence of force applied to the tube. A respiratory apparatus for delivering a flow of pressurized breathable gas includes a flow generator to generate the flow and a patient interface to deliver the flow to the patient's airways. The flow generator and the patient interface are connected by a retractable tube. A method of delivering a flow of pressurized breathable gas includes connecting the flow generator and the patient interface using a retractable tube.

Abstract: A nose mask assembly to be worn during sleep including a nose mask, an air hose, a suspension support bracket connected to the air hose, a retractable line connected to the air hose, and a ball joint or a flexible silicone rubber tubing member connected to the nose mask for supplying continuous positive air pressure to a user. The nose mask includes an intake port for an air hose, an opening for an exhalation air valve therein, an air chamber for receiving air, and a contoured nose section for fitting on the nose of the user. The nose mask includes holding means in the form of an expandable headband for retaining the nose mask on the head of the user. The intake port includes the ball joint swivel member or a flexible silicone rubber tubing member for swiveling of the air hose relative to the nose section of the nose mask allowing the user to move side to side without having the air hose pulling on the nose mask during sleep movements of the user.

Abstract: A filtering face mask that has a mask body and an exhalation valve. The mask body is adapted to fit over the nose and mouth of a wearer. The exhalation valve is attached to the mask body and includes a valve seat that comprises a seal surface, an orifice that is circumscribed by the seal surface, a flap-retaining surface, and a single flexible flap that has a fixed portion and a free portion and first and second opposing ends. The first end of the single flexible flap is associated with the fixed portion of the flap so as to remain at rest during an exhalation, and the second end is associated with the free portion of the flexible flap so as to be lifted away from the seal surface during an exhalation. The second end also is located below the first end when the filtering face mask is worn on a person. The flexible flap is positioned on the valve seat such that the flap is pressed towards the seal surface in an abutting relationship therewith when a fluid is not passing through the orifice.

Abstract: Artificial respiration device for patients suffering from hypoxemia or anoxemia. According to the invention, the tubular element (5) comprises a lateral safety device (12) arranged opposite the point of convergence (C) of the jets of respiratory gas (J).

Abstract: A forehead pad for a breathing mask includes a substantially dimensionally stable first wall element and an elastomer second wall element coupled to the first wall element. The second wall element has a contact zone adapted to contact a surface of a user in use. The first and second wall elements define a filling-material-receiving chamber adapted to receive a filling material.

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 mask for breathing support devices (10) to guide the breathing support gas to the patient. The mask includes a mask body including a material that is permeable to air at least in partial areas. A gas guiding structure is provided which can be connected to suction openings of the breathing support device (10). The gas guiding structure extends through the interior of the mask body. The gas guiding structure for the transport/delivery of gas is limited partially by air-permeable areas of the wall of the mask body, through which ambient air can be drawn in. The mask is characterized by high wear comfort and improved safety against accidental coverage of the suction areas.

Abstract: A breathing mask to be fastened with a strap on the head with breathing gas supply through the strap. The strap includes areas that have a multilayer design and at least two layers of the material of the strap lying one on top of another are connected with one another such that they form a channel, through which a gas can flow.

Abstract: An emergency pulmonary resuscitation device is described. The device of the present invention provides emergency breathing for use in techniques such as CPR, and is preferably capable of interaction with an automatic external defibrillator. The device is easy to operate and provides feedback so that it may be used by persons without medical training. The device also works through a simple action, making it possible for it to be inexpensively manufactured and widely disseminated.

Abstract: According to certain example embodiments of this invention, there is provided an apparatus for treatment of a patient with both sleep-disordered breathing and diabetes. A PAP device may be configured to provide a supply of pressurized breathable gas. At least one glycemia sensor also may be provided. A controller may be operable to receive a signal from the at least one glycemia detector and may be further operable to analyze the signal for an indication of a glycemia abnormality (e.g., hypoglycemia, hyperglycemia, diabetic coma, etc.). Optionally, when the signal indicates that the patient is experiencing a diabetic event, an alert may be generated and/or a drug delivery unit may administer an appropriate treatment to the patient.

Abstract: A second stage of a regulator for scuba breathing apparatus which comprises a body having an extension sleeve for delivering a breathing gas mixture to a user and a replaceable mouthpiece element comprising a connecting sleeve, which connecting sleeve of the mouthpiece is elastically deformable and may be fitted on said delivery sleeve of the second stage. According to an embodiment of the invention, there are provided separate and independent pull-out resistant means for mechanically locking the mouthpiece element to the delivery sleeve and separate and independent means for providing a hermetic seal between the mouthpiece element and the delivery sleeve.

Abstract: Present invention relates to protect the wearer from airborne viruses like influenza, and all harmful bacteria. This device will allow a user to carry out daily chorus such as eating, drinking, walking, talking and driving without taking it off. This device allows the user doing all the daily activity while filtering out all the viruses and harmful bacteria.

Abstract: A respiratory mask includes a mask frame and a forehead support provided to the mask frame. The forehead support includes a base extending from the frame. The base includes a flexible portion along at least a portion of its length including a material and/or physical characteristic that allows the base to flex from an original, unloaded position.

Abstract: A sensor main unit 1 is axially split into three sub-segments. A light-emitting element 2 is attached to one end portion, and a light-receiving element 3 is attached to the other end portion. A respiratory flow path 4 is formed so as to penetrate through the center portion. The sensor main unit 1 is attached to a position on the face below the nostrils, and respiratory gas from the nostrils is guided into the respiratory flow path 4 and is caused to cross over the optical axis connected the light-emitting element 2 and the light-receiving element 3, thereby measuring a carbon dioxide gas in the respiratory gas.

Abstract: In accordance with one embodiment of the present disclosure, an adjustable gas delivery system is provided. The system may include a face mask, an arm apparatus, and a gasket. The face mask may be configured to deliver gas to a subject, and may include a flexible cushion portion configured to interface with the subject's face and a rigid base portion configured to support the cushion portion, the rigid base portion including a gas inlet. The arm apparatus may be configured to deliver gas to the face mask. The arm apparatus may include a gas outlet having a cross-sectional area smaller than a cross-sectional area of the gas inlet of the base portion of the face mask. The gasket may couple the gas outlet of the arm apparatus with the gas inlet of the face mask. The gasket may be flexible such that the orientation of the face mask relative to the arm apparatus is adjustable.

Abstract: A mask assembly adapted for use with a positive airway pressure device, includes a mask frame, an elbow assembly provided to the frame, a cushion provided to the frame, a forehead support assembly, and a neck to connect the frame to the forehead support assembly, wherein the neck includes a pair of side walls having a streamlined design that is made to look sleek and reduce or minimize obtrusiveness. The pair of side walls may take the form of a single wall or more than two walls. The mask frame may include a recessed port structure including at least one port having access to an interior of the frame which at least in part with the cushion defines a breathing chamber in communication with a nasal passage of the patient in use. The mask frame may also include a channel to receive the cushion. The channel is formed by an outer wall and an inner wall and the channel includes an inner surface having a bead to engage with an outer surface of an edge of the cushion.

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: A respirator 10 that includes a harness 14 and a mask body 12 that is air permeable. The mask body 12 has a sinus region 40 and a primary filtering region 44 and comprises at least one nonwoven fibrous webs, which web includes a layer of filter media. The sinus region 40 of the mask body 12 exhibits a resistance to airflow that is greater than the primary filtering region 44. This resistance to airflow is achieved through an alteration of the intrinsic structure of the plurality of nonwoven fibrous layers in the sinus region 40 without adding additional material to the mask body. The alteration of the intrinsic structure assists in preventing eyewear fogging.

Abstract: A forehead support for a respiratory mask assembly includes a cushion frame including one or more openings structured to receive one or more forehead cushions. The one or more openings are angled downwardly, as viewed from the side, so as to properly orient the one or more forehead cushions with respect to the patient's forehead in use.

Abstract: The device of the present invention relates to a resuscitation device that can be operated by a single user in a hands-free manner and a method of using the resuscitation device for administration by the user to a patient of either pulmonary resuscitation or cardio-pulmonary resuscitation (CPR) which employs fresh air. The device of the present invention may be either human-actuated or non-human actuated. Typically, when used in emergency situations, the device of the present invention is human-actuated. The device of the present invention comprises a neck support means interconnectedly related to a mask; wherein the mask is interconnectedly related to a respiratory hose by means of a one-way valve coupling; and further wherein the respiratory hose is interconnectedly related to a bellows device by means of a one-way valve coupling.

Abstract: This invention pertains generally to ventilation devices, and more particularly to a low cost constant pressure, variable flow blower powered ventilation device that is fully functional with a mask and which can be adapted to a number of applications including (1) a respiratory device used for automatic resuscitation of patients needing emergency ventilation, (2) emergency backup ventilation capabilities for hospitals and other healthcare institutions, and (3) positive pressure support therapy for patients suffering from obstructive sleep apnea among other diseases and respiratory conditions.

Abstract: An apparatus for providing a breathing gas to a user may include: a headgear unit and a control unit. The headgear unit may include: a breathing interface, an adjustable structure to fit the headgear unit to the user's head with the breathing interface disposed in relation to the user's facial area, a blower motor assembly attached to the adjustable structure, and a plenum coupled to the breathing interface and the blower motor assembly to form a breathing gas flow path. The control unit controlling operation of the blower motor assembly based on a desired pressure for the breathing gas. Operation of the blower motor assembly provides the breathing gas to a user airway at an adjustable positive pressure via the breathing gas flow path. Additional embodiments of the apparatus and various embodiments of a related method are also provided herein.

Abstract: A patient interface device that includes a support member sized and configured to span at least a portion of a patient's face while remaining below the patient's eyes responsive to the patient interface device being donned by such a patient. A sealing assembly is attached to the support member via a snap assembly associated with the support member and the sealing assembly. The snap assembly allows the sealing assembly to selectively attach to the support member.

Abstract: A patient interface support that supports a patient interface of a PAP device and generates a pre-selected engagement pressure at the patient interface to create a seal between the patient interface and the patient's airflow passages when the interface support is in use while alleviating the strain on the patient's head. The patient interface support comprises a base for attachment to a support surface; and, a support extension having a joint; a patient interface mount; and, biasing means. The joint movably connects the support extension to the base, the patient interface mount supports the patient interface, and the biasing means generates a pre-selected engagement pressure at the patient interface to create a seal between said patient interface and the patient's airflow passages when said interface support is in use.

Abstract: A portable gas delivery system includes a mouthpiece, a gas delivery pack and a tubing assembly. The mouthpiece has an upper region and a lower region extending therefrom. The upper region includes a least one nose port. The lower region includes a mouth port. The gas delivery pack has a gas storage region, a gas compression region, or a combination thereof. The tubing assembly operably attached to the mouthpiece and the gas delivery pack for delivering gas from the gas delivery pack to the mouthpiece.

Abstract: A pressure support respiration mask includes an elastic cap body having: a front end wall that is formed with a front opening; a surrounding wall that extends rearwardly from a periphery of the front end wall in a transverse direction relative to the front end wall, that defines an inner space in fluid communication with the front opening, and that has a rear end; a skirt wall that flares outwardly of the inner space from a periphery of the rear end of the surrounding wall, and that has a rear end; and a rear end wall that is constricted from a periphery of the rear end of the skirt wall to define a rear opening.

Abstract: A nasal ventilation interface including a pair of tubes configured to deliver a ventilation gas. The tubes are attachable at a first end to a ventilation gas supply hose and engageable at a second end with a person's nostril. A coupler is configured to align the pair of tubes with the person's nostrils, wherein each tube has an absence of pneumatic interconnection with the other tube.

Abstract: An airway tube constricting device ASTD having a tubular constrictor attached to an oral piece and means for fastening the ASTD to the face of a patient provides for the correct placing and fixation of an airway tube within the patient's airways. A rotatable clamping means provides for constricting the airway tube thereby securing it to the oral piece. An optional mouthpiece attached to the proximal face of the oral piece provides for the protection of the tube from the jaws of a patient. One or two apertures in the oral piece provide for further insertion of tubing, auxiliary intubation tools and or probes.

Abstract: A nasal mask is adapted to attached on a face of a subject so as to cover a nose of the subject. A shell has a contact edge adapted to be brought into close contact with the face of the subject, thereby forming a sealed space therein. An attachment portion is disposed in the shell and has an inner space. The attachment portion is configured to detachably engage with a sensor disposed outside the shell and operable to measure concentration of carbon dioxide gas expired from the nostrils. A guide member is disposed inside the shell and forming a passage adapted to introduce expired gas from the nostrils into the inner space. The shell is formed with an inlet adapted to introduce external gas into the sealed space. The expired gas is guarded by the guide member from the external gas introduced through the inlet. The attachment portion is formed with an outlet adapted to discharge the expired gas from the inner space to the sealed space.

Abstract: The invention provides a nasal cushion for a mask assembly for delivering pressurised gas to the nose of a subject for treatment with continuous positive air pressure. The nasal cushion includes a self-supporting side wall defining a nose-receiving cavity; the side wall extending from a first end to a second end. The side wall is formed continuously with a thin membrane extending inwardly from a second end of the side wall into the nose-receiving cavity for sealingly engaging the nose, upper lip and cheeks of a subject. The side wall has continuously varying thickness. The first end of the side wall is adapted to engage a mask frame. The invention further provides a mask assembly for delivering pressurised gas to a patient, the assembly including a nasal cushion for sealing against the nose, cheek and-lip area the nasal cushion as described, a frame for receiving the nasal cushion, and a headgear, the headgear including a rigid arm for positioning behind the ear of a patient.

Abstract: A respiratory mask assembly includes a frame and a forehead support secured to the frame. The forehead support includes a joining member secured to an upper portion of the frame and a cushion frame movably mounted to the joining member. One of the joining member and cushion frame includes a pair of shafts and the other of the joining member and cushion frame includes a pair of openings. The pair of shafts are respectively received in the pair of openings to couple the cushion frame to the joining member and enable the cushion frame to move relative to the joining member. Each of the shafts has a non-circular cross section defining a major longitudinal axis that is angled forwardly of a vertical axis of one of the joining member and cushion frame so as to angle toward a front portion of one the joining member and cushion frame.

Abstract: A method for treating obstructive sleep apnea includes providing MAD therapy via an adjustable mandibular advancement device structured to advance the position of the patient's lower jaw, providing CPAP therapy via a mask system structured to deliver a supply of pressurized air to a patient, and selectively adjusting the mask system and/or the mandibular advancement device to alternate and/or balance between CPAP therapy and MAD therapy.

Abstract: The invention relates to a device for artificial respiration, comprising a front support (3) which is connected to The respiratory mask comprises a connection for the respiratory tube (4). The front support is coupled to the respiratory mask by means of a distancing element (2). At least one cavity (11) is arranged in the region of the distancing element, said cavity leading into an inner chamber (12).

Abstract: The present invention provides a mask for delivery of an aerosolized or nebulized drug to a patient. The mask has an inner surface configured to generate a helical flow of gases within the inner space between the mask and the patient's face after the gases rebound from the patient's face during the process of gas delivery through the mask. The helical flow of gases minimizes the leakage of gases from the interior of said mask under the rim of the mask and toward the patient's eyes.

Abstract: An oxygen therapy face mask has a face engaging portion and a valve assembly connected thereto. The valve assembly has a first passage communicating with the interior of the face engaging portion from which gas can flow into the face engaging portion and into a patient's mouth and nose and which can also receive gas from a patient's mouth and nose and the interior of the face engaging portion. A first one-way valve is associated with the first passage and a second passage connectable to an oxygen reservoir bag and to an external source of pressurized oxygen. The first one-way valve is operable to permit flow of gas from the second passage to the first passage and to prevent flow of gas from the first passage to the second passage. A second one-way valve is associated with the first passage and is operable to permit flow of gas from the first passage to the external atmosphere and to prevent flow of gas from the external atmosphere to the first passage.

Abstract: A cannula receives respiratory airflows and ambient airflows; a differential pressure transducer determine pressure differentials between the respiratory airflows and the ambient airflows; and a ventilator responds to the pressure differentials. Another receives respiratory airflows and interface airflows; a differential pressure transducer determine pressure differentials between the respiratory airflows and the interface airflows; and a ventilator responds to the pressure differentials. And another receives respiratory airflows from a subject and interface airflows from an area near a cannula; a differential pressure transducer determine pressure differentials between the respiratory airflows and the interface airflows; and a ventilator responds to the pressure differentials. Corresponding respiratory monitoring methods receive, determine, and control the same.

Abstract: A method for fabricating a facial seal for use in a breathing assistance system is provided. The method includes capturing one or more images of a patient's face. The method further includes translating the one or more images into a set of data representing a three-dimensional structure of at least a portion of the patient's face and fabricating a facial seal to substantially conform to the patient's face based at least on the set of data, including fabricating at least a portion of the facial seal using rapid prototyping or a subtractive manufacturing technique. A method for selecting a facial seal for a breathing assistance system is also disclosed.

Abstract: The present invention provides a hose support system that can be used to support hoses, tubes, wires, cables, etc., from medical devices. The invention comprises a base unit, a support arm and a flexible rod with fasteners attached. The base unit stabilizes the other connected components by placement under a mattress, a cushion or other weighted item next to both the medical device and the patient. At least one fastener is attached to the flexible rod to hold the line (i.e., hose, cable, wire, tube, etc.) from the medical device up off of the bed which allows delivery of the precise amount of the line needed.

Abstract: An adjustable mask apparatus for use in a breathing assistance system may include a housing, an adjustment arm, and a locking member. The housing may support a cushion configured to provide a seal against a patient's face. The adjustment arm may include a first end configured for attachment to a head gear, and a second end rotatably coupled to the housing to allow rotation of the adjustment arm to adjust a distance between the first end of the adjustment arm and the patient's head. The locking member may be coupled to the housing and may be configured to secure the adjustment arm in one of a plurality of predetermined rotational positions, each predetermined rotational position comprising a rotational position of the adjustment arm with respect to the housing.

Abstract: A gas exhaust system for a mask apparatus for use in a breathing assistance system may include a housing for supporting a cushion configured to provide a seal against a patient's face, the housing defining a housing opening, and a ball member secured in the housing opening such that the ball member may rotate relative to the housing. One or more exhaust passageways for communicating exhaust gas away from the patient may be defined between an outer surface of the ball member and the housing opening.

Abstract: According to one embodiment, a medical mask includes a rigid sealing portion configured to cover and seal around at least a portion of a user's nose including the user's nostrils and a rigid stabilizing frame coupled to the rigid sealing portion. The rigid stabilizing frame includes a generally horizontal upper support member configured to bear against the user's forehead, a generally vertical support member coupled between the rigid sealing portion and the upper support member, and lower left and right support members coupled between the rigid sealing portion and the upper support member and configured to bear against the user's cheeks. The rigid stabilizing frame defines two openings configured to allow the user to see through the medical mask when the medical mask is positioned on the user's face.

Abstract: A breathing assistance system may include a patient interface configured to interface with a patient to communicate gas received from a gas delivery apparatus to the patient, and a securing system configured to secure the patient interface against the patient's face. The securing system may include one or more walls forming a generally tubular structure open at least at one end. At least a portion of the one or more walls may be elastic such that at least a portion of the generally tubular structure can be stretched over the patient's head.

Abstract: A patient interface for a breathing assistance system may include a facial seal releasably coupled to a seal support. The seal support may include an opening and a first connection portion extending at least substantially around the opening. The facial seal may include a first side having a first seal opening and configured to provide a seal against a patient's face, a second side having a second seal opening, and a passageway extending between the first and second seal openings for delivering breathing gas to the patient. The facial seal may further include a second connection portion extending at least substantially around the second seal opening. The second connection portion may be deformed to mate with the first connection portion to releasably couple the facial seal to the seal support and to form a seal between the facial seal and the seal support.

Abstract: An adapter for use with a gas filter canister worn by a user as part of a breathing apparatus. The adapter is constructed of a semi-rigid plastic that has a plurality of scalloped or castellated edges. The scalloped or castellated edges allow the adapter to snap-fit over the top of the canister. Projections or lugs on the inside of the edge of the adapter can deflect and snap over the rim of the canister. An adapter seal in the form of a large preformed packing or O-ring, is pressed between the inside of the adapter top and the outside of the canister top such that an airtight seal is formed. The adapter is capable of moving relative to the filter canister to accommodate different positions of the flexible conduit between an adapter inlet and the outlet of a self contained blower assembly.