Abstract: A system for providing mechanical ventilation support to a patient and includes a mechanical ventilator. A breathing circuit is pneumatically connected between the mechanical ventilator and a patient connection. An inspiratory check valve is disposed within an inspiratory limb of the breathing circuit. A fresh gas manifold provides fresh gas to the breathing circuit for delivery to the patient. A fresh gas valve is disposed between the fresh gas manifold and the breathing circuit. The fresh gas valve is operable between a first position which directs fresh gas upstream of the inspiratory check valve and a second position that directs fresh gas downstream of the inspiratory check valve. A digital signal processor operates the fresh gas valve selectively between the first position and the second position. A method of ventilating a patient includes introducing a flow of fresh gas into an inspiratory limb of the breathing circuit.

Abstract: A CPAP system includes a PAP device (5) structured to generate a supply of pressurized air, a patient interface (15) adapted to engage with the patient's face to provide a seal, an air delivery conduit (102,104) provided between the PAP device and the patient interface to deliver the supply of pressurized air along a gas delivery path from the PAP device to the patient interface, and a muffler (100) provided along the gas delivery path downstream of the PAP device.

Abstract: A breathing apparatus is operable in self-contained and filtered modes of operation. In the self-contained mode of operation, a breathable gas is delivered to a user from a self-contained source of breathing gas. In a second, filtered mode of operation, a suction source draws ambient air through a filter removing contaminants and delivers filtered ambient air to the user. A method of delivering air to a subject is also provided.

Abstract: Ventilator apparatus provides a breathing circuit for supplying breathing gas to a patient. The breathing circuit includes a variable volume enclosure (3) provided within an enclosure chamber (2) and a gas supply path (21) into the enclosure chamber enabling the enclosure chamber to be pressurised by the supplied gas in order to vary the volume of the enclosure. An alternative path (9) for the gas supply is provided enabling the gas supplied, in predetermined circumstances, to enter directly into the breathing circuit via a valve (4). The gas supply path into the chamber is directed such that as a result of gas passing into the enclosure chamber the valve is biased more firmly to a closed condition.

Abstract: The present invention discloses an oxygen mask which is connected externally to a carbon dioxide density tester and facilitates a patient to breathe in oxygen. The oxygen mask comprises a mask and a tube unit, and only covers a nose of a patient without covering a mouth. An opening of a respiration tube of the tube unit faces upward to facilitate connecting externally with a resuscitation bag. The respiration tube is provided with a carbon dioxide discharge tube which is integrally formed with the respiration tube and can be externally connected with a carbon dioxide density tester, allowing a paramedic to observe density of carbon dioxide exhaled from the patient, without resulting in a leak to the oxygen mask, which affects the patient to breathe in oxygen.

Abstract: The invention relates to an oxygen breathing device, including a casing, said casing accommodating in a non-activated condition an oxygen source, in particular a chemical oxygen generator or an oxygen pressure tank, a starter device for initiating a flow of oxygen out of said oxygen source, a buffer connected to said oxygen source, said buffer being adapted to temporarily store oxygen produced in said oxygen source, at least one oxygen mask connected via an oxygen supply line to said buffer wherein a flexible buffer is provided in the oxygen breathing device and connected to the oxygen source.

Abstract: A continuous positive airway pressure device which includes:—an inflatable breathable air reservoir provided with an air inlet/outlet;—a pressurized gas reservoir arranged to apply a predetermined substantially constant pressure on the breathable air reservoir, irrespective of the degree of inflation of the breathable air reservoir.

Abstract: A flow regulation vent for venting washout gas to atmosphere and for regulating flow from a pressurized gas supply includes a fixed portion adapted to engage a gas supply conduit; a spring force biased movable portion in communication with the pressurized gas supply; and a hinge pivotally connecting the movable portion to the fixed portion. The fixed portion has a gas flow orifice and the movable portion is pivotally movable between 1) a relaxed position, below a specified operating pressure to establish a first gas washout flow area, and 2) a fully pressurized position. At or above the specified operating pressure, the pressurized gas pivots the movable portion adjacent the fixed portion to cover at least a portion of the gas flow orifice and establish a second gas washout flow area. The second gas washout flow area is less than the first gas washout flow area.

Abstract: A medical ventilation monitoring system includes a patient ventilation unit defining an airflow path, the unit arranged so that when the unit is applied to a patient, the airflow path is in fluid communication with the patient's airway; an airflow sensor in the air flow path positioned to sense the presence of ventilation airflow to or from the patient; and a wireless transceiver arranged to receive data that is generated by a portable medical device, and to use the data to provide feedback to a rescuer regarding proper administration of ventilation.

Abstract: A system for the control of a ventilator or an anesthesia delivery machine for an intubated patient, wherein the intubated patient has an endotracheal tube inserted into the airway passage, the endotracheal tube having a controllably inflatable annular cuff thereon, wherein the cuff is monitored and controlled by a pressure control unit, the system including: a patient-disturbed signal arrangement for providing a feedback to the ventilator or anesthesia delivery machine through the pressure control unit to delay pressure changes directed to the cuff by the ancillary devices.

Abstract: In one aspect, the invention relates to a portable life support device including a ventilator comprising a ventilator bag which combines a pressure relief valve and blow through valve.

Abstract: A manually operated ventilating element such as a bellows for administration of artificial respiration, for example, during anesthesia, has wall sections or pleats of different diameters. When the element is actuated through a small stroke length, the smaller section is actuated. A small volume of gas is delivered and the change in delivered volume per unit stroke length is small, so that the operator can precisely control the delivered volume. When the element is actuated through a larger stroke length, a larger volume per unit stroke length is delivered. The same element can be used to treat children and adults.

Abstract: The present invention relates to methods and systems for resuscitation of an infant which maintains healthy blood oxygen saturation values in the infant by titration of supplemental oxygen concentrations.

Abstract: An aspiration and resuscitation system which is useable to perform aspiration and/or resuscitation procedures on living beings, particularly small animals, and most particularly newborn small animals such as puppies and kittens. The system includes an aspirator and a resuscitator. Each includes a separable pump and animal interface mask. Further disclosed are aspiration and resuscitation methods using the disclosed apparatus.

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: A collapsible reservoir system is disclosed herein. The collapsible reservoir system includes a first tube pneumatically connected to the collapsible reservoir, and a second tube pneumatically connected to the collapsible reservoir. The second tube is configured to generally remain open in the absence of an externally applied compressive force. The second tube is positioned relative to the collapsible reservoir such that a compressive force applied to the collapsible reservoir can also compress and thereby restrict the second tube. A corresponding method for controlling the pressure of a collapsible reservoir system is also provided.

Abstract: A dispenser for a liquid or pulverulent, in particular a pharmaceutical medium with a medium reservoir, is provided for single-handed operation. The dispenser includes a dosing opening and is bounded in some sections by wall sections of flexible design, and by a dimensionally stable holding plate, which is provided as a handle for the application of actuating forces to the medium reservoir.

Abstract: A breathing circuit is described for the supplying of low pressure oxygen to a patient that is at risk of hypoxia. The breathing circuit includes a patent airway maintaining device, a first tube that includes a substantially rigid elbow and connectors and a flexible tubular extension. An inflatable bag is coupled to the first tube and has a pressure relief valve that exhausts into the atmosphere. A second tube has a first end that terminates in proximity to the patent airway maintaining device and a second opposed end that terminates external to the first tube. A third tube connects an external source of oxygen to the second tube. A method for an oxygen breathing circuit is also described that further includes the use of a carbon dioxide monitor and the inflatable bag for assisted breathing. The breathing circuit uses only non-metallic polymer or composite type materials.

Abstract: A cardiopulmonary resuscitation device that combines ventilation of a patient's lungs with chest compressions on the patient's sternum area. The device includes a self-inflating bag having an outlet port through which the content of the bag is forced when bag is compressed; target indicia on the bag to indicate the proper position of the bag on the patient's sternum area and to indicate the proper location on the bag for applying force to the top side thereof; a face mask for placement over the patient's mouth and nose; and a tube extending from the bag to the face mask. The device may include indicia for indicating the amount of pressure applied to the self-inflating bag, and a backboard including belt/motor structure for providing repeated and rapid chest compression and forced ventilation of the patient's lungs.

Abstract: In accordance with one embodiment of the present invention, a protective sheath for use with a manual ventilation bag that is associated with an anesthesia apparatus includes a sheath body that is intended to surround the manual ventilation bag. The sheath body has a plurality of removable overlying sheath layers, with each sheath layer being progressively longer in length from an innermost layer to an outermost layer with respect to the ventilation bag that is received within the sheath body.

Abstract: The present invention relates to a method of delivering combined positive and negative pressure assist ventilation to a patient, wherein a positive pressure is applied to the patient's airways to inflate the patient's lungs, a negative pressure is applied around the patient's ribcage and/or abdomen in order to reduce a load imposed by the ribcage and/or abdomen on the patient's lungs, and application of the positive and negative pressures is synchronized.

Abstract: A breathing circuit is described for the supplying of low pressure oxygen to a patient that is at risk of hypoxia. The breathing circuit includes a patent airway maintaining device, a first tube that includes a substantially rigid elbow and connectors and a flexible tubular extension. An inflatable bag is coupled to the first tube and has a pressure relief valve that exhausts into the atmosphere. A second tube has a first end that terminates in proximity to the patent airway maintaining device and a second opposed end that terminates external to the first tube. A third tube connects an external source of oxygen to the second tube. A method for an oxygen breathing circuit is also described that further includes the use of a carbon dioxide monitor and the inflatable bag for assisted breathing. The breathing circuit uses only non-metallic polymer or composite type materials.

Abstract: A device for automatically squeezing and releasing an AMBU-bag is disclosed. A device has a housing, and a mechanical compression squeezer in the housing. There are openings in the housing for inlet tubes and outlet tubes of AMBU-bag to pass in and out of the housing. A powered actuator powers the compression squeezer.

Abstract: Provided is a breathing system comprising a flexible reservoir bag (6) having bag walls and provided with an exhaled gas inlet and a gas outlet (7). The bag defines a passageway for flow of gas in a first direction. The gas outlet of the reservoir bag is in communication with a collecting tube (8) which defines a passageway for flow of gas in a second direction and in use is connectable to a gas collector. At least part of the walls of the bag extend beyond the sides of the collecting tube, and the first and second directions of gas flow are substantially parallel to, and laterally offset from, one another. Additionally, the collecting tube is attached to an outer surface of the reservoir bag.

Abstract: A diaphragm valve is provided, in which there is improved sealing of a closing cover (15) against the valve housing (3). The seal includes a cylindrical sealing washer (25), which is connected to the valve housing (3) in one piece and into which a cylindrical wall section (18) of the closing cover (15) can be inserted with press fit.

Abstract: A hand-held apparatus that delivers pressurized breathing gas to the airway of a patient, thereby creating positive end expiratory pressure (PEEP) and reducing respiratory muscle fatigue. The apparatus includes a deformable reservoir, a breathing interface, and a pressure relief valve. The apparatus may include a means for creating fluid communication between the deformable reservoir and a source of pressurized breathing gas. The apparatus may also include an adjuster that allows a user to vary the pressure of the breathing gas contained in the deformable reservoir.

Abstract: In one embodiment, the invention provides a device for decreasing intracranial or intraocular pressures. The device comprises a housing having an inlet opening and an outlet opening that is adapted to be interfaced with a person's airway. The device further includes a valve system that is operable to regulate respiratory gas flows through the housing and into the person's lungs during spontaneous or artificial inspiration. The valve system assists in lowering intrathoracic pressures during each inspiration to repetitively lower pressures in the venous blood vessels that transport blood out of the head to thereby reduce intracranial or intraocular pressures.

Abstract: A volume expansion system increases the storage volume for breathing gas in a closed-circuit breathing gas apparatus. A flow controller is coupled to an inhalation side of the closed-circuit breathing gas apparatus and is also coupled to an expandable reservoir. The flow controller defines a first flow path that allows breathing gas in the inhalation side to automatically flow into the expandable reservoir when pressure in the inhalation side exceeds a threshold. The flow controller can also include the means to define a second flow path that allows on-demand return of the breathing gas in the expandable reservoir to the inhalation side of the breathing gas apparatus.

Abstract: An adapter for connecting, in particular, respiratory implements such as tubes, tube extensions, filters, breather bags, or artificial noses to a tube having a particularly conically tapered connector. the adapter has a clamping section that may be fixed to the connector in a frictionally engaged manner. The clamping section of the adapter may be radially expanded from a first clamping position in which the inner diameter of the clamping section is less than the outer diameter of the connector into a second release position in which the inner diameter of the clamping section is greater than the outer diameter of the connector.

Abstract: A cardiopulmonary resuscitation device that combines ventilation of a patient's lungs with chest compressions on the patient's sternum area. The device includes a self-inflating bag having an outlet port through which the content of the bag is forced when bag is compressed; target indicia on the bag to indicate the proper position of the bag on the patient's sternum area and to indicate the proper location on the bag for applying force to the top side thereof; a face mask for placement over the patient's mouth and nose; and a tube extending from the bag to the face mask. The device may include indicia for indicating the amount of pressure applied to the self-inflating bag, and a backboard including belt/motor structure for providing repeated and rapid chest compression and forced ventilation of the patient's lungs.

Abstract: Described herein are nasal respiratory devices, in particular, nasal respiratory devices configured to achieve positive end-expiratory pressure (PEEP) in a subject wearing the device. PEEP devices may have a threshold pressure for opening during expiration. In some variations, these devices have a threshold pressure for closing during expiration.

Abstract: A collapsible respiration bag assembly is disclosed and includes a flexible hollow body longitudinally extending about a longitudinal axis thereof between an air intake end and an air outlet end and formed with at least three annular folds. A patient valve is fitted at the outlet end and includes a face mask coupler transversing the longitudinal axis. An intake valve assembly is also included and a face mask fitted with a face engaging rim, a dome portion and a valve coupler detachably connectable to the face mask coupler. The dome portion of the face mask is deformable between an operative, concave position and a convex stowing position, where the dome portion is inverted and where the valve coupler is detached from the face mask coupler. The assembly is configurable between at least one extended, operative position and a fully collapsed stowed position where the annular fold zones at least partially overlap.

Abstract: A cardiopulmonary resuscitation device that combines ventilation of a patient's lungs with chest compressions on the patient's sternum area. The device includes a self-inflating bag having an outlet port through which the content of the bag is forced when bag is compressed; target indicia on the bag to indicate the proper position of the bag on the patient's sternum area and to indicate the proper location on the bag for applying force to the top side thereof; a face mask for placement over the patient's mouth and nose; and a tube extending from the bag to the face mask. The device may include indicia for indicating the amount of pressure applied to the self-inflating bag, and a backboard including belt/motor structure for providing repeated and rapid chest compression and forced ventilation of the patient's lungs.

Abstract: A hyperinflation system includes an airbag having an air inlet and an air outlet, and a one-piece multi-way connector including a base, a first tube section projecting from a first side of the base and connected to the air outlet, a second tube section projecting from a second side of the base oppositely of the first tube section, and a pressure gauge projecting from the second side of the base. A multi-port adaptor includes a first port connected fluidly to the second tube section, and a second port adapted for connection with a patient interface.

Abstract: A device for the controlled inhalation of therapeutic aerosols comprises means providing individual patient parameters and/or aerosol parameters for the inhalation. The aerosol doses, such as the tidal volume and the respiratory flow, are individually adjusted on the basis of these individual parameters. Thus, the inhalation device may be individually adjusted to the patient to be treated.

Abstract: A flexible bag aerosol holding chamber is sealed around the outlet passage of the actuator for a pressurized metered-dose inhaler. An elastic-loaded mouthpiece is sealed around the inlet passage of the actuator so that the user may intermittently break the seal around the inlet passage by withdrawing the mouthpiece, thus allowing inhalation of a portion of the aerosol contents of the chamber. In a preferred embodiment of the invention, the aerosol contains a compound which has traditionally been smoked such as nicotine or a cannabinoid. The user may draw upon the chamber's contents a number of times at a frequency analogous to smoking until the chamber is fully collapsed. One inhaler actuation, and one filled chamber, are comparable to one cigarette. The collapsible bag chamber allows for economy of inhaler actuations relative to user inhalations, without the aerosol being diluted by ambient air.

Abstract: A ventilator system is disclosed herein. The ventilator system includes a collapsible reservoir assembly comprising an outer reservoir and an inner reservoir disposed at least partially within the outer reservoir. The ventilator system also includes a source of gas pneumatically coupled with the outer reservoir, and a controller operatively connected to the source of gas. The controller is configured to regulate the transmission of gas from the source of gas to the outer reservoir in order to compress the inner reservoir and thereby automatically transfer the contents of the inner reservoir.

Abstract: Disclosed is a manually operable volume-adjustable ventilation device. The device includes a reservoir with an inlet mechanism, an outlet mechanism, and a volume adjuster configured to move a volume adjustment limit of the reservoir and change an expressed maximum volume of the reservoir. The reservoir has a body having a plurality of movable walls defining an enclosed volume. The reservoir has an uncompressed state and a compressed state. The walls of the reservoir are movable with respect to each other, such that moving the walls expresses the volume adjustment limit of the reservoir. The walls can be operably connected by movable structures configured such that two adjacent walls are configured to rotate around substantially orthogonal axes with respect to each other when the reservoir moves from an uncompressed to a compressed state. In some embodiments, the movable structures can be hinges, such as snap-fit assembly hinges. Methods of ventilating a patient that involve the device are also disclosed.

Abstract: A breathing apparatus is operable in self-contained and filtered modes of operation. In the self-contained mode of operation, a breathable gas is delivered to a user from a self-contained source of breathing gas. In a second, filtered mode of operation, a suction source draws ambient air through a filter removing contaminants and delivers filtered ambient air to the user. A method of delivering air to a subject is also provided.

Abstract: Systems and methods for monitoring motion parameters of an object are described in the present disclosure. In one embodiment among many, a sensor, coupled to a housing, senses motion associated with the housing and provides a sensor output based on the sensed motion. A processing device receives the sensor output, accumulates counts associated with the sensor output, and provides an output once a threshold associated with the accumulated counts is reached. A vibrotactile device, that receives the output from the processing device, provides a haptic output in response to the output from the processing device. In one embodiment among many, a toothbrush is described as a monitoring mechanism for monitoring a plurality of brush strokes that a user executes with the toothbrush. The monitoring mechanism is incorporated in the handle of the toothbrush. The monitoring mechanism may be used to provide an alert once a sufficient number of brush strokes is achieved.

Abstract: A therapeutic face mask comprises a face-engaging portion and a single connector having a mask-engaging end and a single treatment-receiving end which has a single attachment mounting for detachably sealingly receiving a treatment attachment, such as an oxygen reservoir bag or a nebulizer. A one-way inhalation valve in the connector permits fluid flow from the treatment-receiving end to the mask-engaging end during inhalation and inhibits fluid flow in the other direction. The mask also includes a valve-governed exhalation port and an anti-asphyxia valve assembly configured to permit fluid flow from ambient to the face-engaging portion during inhalation only when inspiratory effort during inhalation exceeds fluid flow to the treatment-receiving end of the connector. Also provided is an oxygen reservoir bag having a neck shaped for removable coupling to a mating connector of a therapeutic face mask. An oxygen reservoir bag may have a metered-dose inhaler port defined in its neck.

Abstract: An inflatable resuscitation mask for use in hospitals or healthcare clinics for medical purposes including use in anesthesia of a patient. The mask includes several features such as an inflatable/deflatable balloon that allow a perfect seal between the mask and the patient's face in order to prevent gas leakage during oxygenation. The mask also includes a carbon dioxide detecting device that assists the medical operator, physician, or nurse to determine proper ventilation. The mask is designed to fit all facial shapes and sizes of the patients and still provide comfort to the patients during oxygenation.

Abstract: A manual ventilation or resuscitation device is provided. The body of the device has rigid panels that encompass a sealed volume and are movable with respect to each other. The body has a displacement in a direction of a hand displacement and at least one other direction. A size adjuster adjusts the body displacement(s) between the states. A frequency adjuster adjusts the time to restore the volume or to adjust the time to compress the volume. The body provides an ergonomic fit to a user's hand, which reduces fatigue. The volume and/or frequency adjustments provide a user with reliance on a more or less constant tidal volume and tidal rate. Such adjustments allow usage of the device on any patient, regardless of individual factors such as physical condition, body/lung size, age and sex. Multiple devices could easily be stacked or nested with each other, which reduces storage space.

Abstract: A compressed air respirator has prolonged operating time due to a rebreathing feature. The respirator has a compressed air reserve (1) with a connected demand air supply valve (2), wherein the demand air supply valve (2) is connected with a reversible breathing gas reservoir (4) with adjustable volume. A rebreathing line (25) for the user of the apparatus has an expiration valve (88), wherein the rebreathing line (25) is connected with the breathing gas reservoir (4).

Abstract: A continuous positive airway pressure device which includes:—an inflatable breathable air reservoir provided with an air inlet/outlet; —a pressurised gas reservoir arranged to apply a predetermined substantially constant pressure on the breathable air reservoir, irrespective of the degree of inflation of the breathable air reservoir.

Abstract: A breathing bag is disclosed. The breathing bag comprises a bag body enclosing an interior volume of the breathing bag. The bag body includes a distal end portion and a neck portion terminating in an open proximal end of the breathing bag. The breathing bag further comprises a bushing coupled to the neck portion. The breathing bag includes at least one indicia thereon. The at least one indicia has a color corresponding with a size of the breathing bag.

Abstract: An oxygenating device including: a body having: a first coupling spigot to which a collapsible bag is connected; an oxygen inlet to which a supply of oxygen can be connected for inflating, in use, the collapsible bag with oxygen; a second coupling spigot having a female leur socket for receipt in use of a male leur connector of an endotracheal tube or laryngeal mask; and a mask which can be applied, in use, about the nose and mouth of a patient and having an inlet/outlet socket mounted over the second coupling spigot.

Abstract: A manual ventilation or resuscitation device is provided. The body of the device has rigid panels that encompass a sealed volume and are movable with respect to each other. The body has a displacement in a direction of a hand displacement and at least one other direction. A size adjuster adjusts the body displacement(s) between the states. A frequency adjuster adjusts the time to restore the volume or to adjust the time to compress the volume. The body provides an ergonomic fit to a user's hand, which reduces fatigue. The volume and/or frequency adjustments provide a user with reliance on a more or less constant tidal volume and tidal rate. Such adjustments allow usage of the device on any patient, regardless of individual factors such as physical condition, body/lung size, age and sex. Multiple devices could easily be stacked or nested with each other, which reduces storage space.

Abstract: A ventilation system providing inspiratory air to a patient and receiving expiratory air from the patient. The ventilation system comprises a ventilator operable between an inspiratory phase and an expiratory phase of a respiration cycle. The ventilator has an inspiratory outlet for providing inspiratory air to a patient during the inspiratory phase and an expiratory inlet for receiving expiratory air from the patient during the expiratory phase. A patient circuit is configured in fluid communication with the lungs of a patient. The patient circuit conveys inspiratory air from the inspiratory outlet to a patient's lungs during the inspiratory phase and conveys expiratory air from the patient's lungs to the expiratory inlet during the expiratory phase. A flow transducer is provided in fluid communication with the patient circuit. The flow transducer is configured to detect a minimum volume of expiratory air in the patient circuit during the expiratory phase of a respiratory cycle.

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.