38 results about "Positive expiratory pressure" patented technology

A respiratory treatment device comprising at least one chamber, a chamber inlet configured to receive exhaled air into the at least one chamber, at least one chamber outlet configured to permit exhaled air to exit the at least one chamber, and an exhalation flow path defined between the chamber inlet and the at least one chamber outlet. A restrictor member positioned in the exhalation flow path is moveable between a closed position, where a flow of exhaled air along the exhalation flow path is restricted, and an open position, where the flow of exhaled air along the exhalation flow path is less restricted. A vane in fluid communication with the exhalation flow path is operatively connected to the restrictor member and is configured to reciprocate between a first position and a second position in response to the flow of exhaled air along the exhalation flow path.

An oscillating positive expiratory pressure device comprising a housing enclosing at least one chamber, a chamber inlet configured to receive exhaled air into the at least one chamber, and a chamber outlet configured to permit exhaled air to exit the at least one chamber. A channel is positioned in an exhalation flow path between the chamber inlet and the chamber outlet, with the channel being moveably connected to a chamber of the at least one chamber. An air flow regulator is moveable with respect to the channel between a first position, where the flow of air through the channel is restricted and a second position, where the flow of air through the channel is less restricted, the air flow regulator being configured to repeatedly move between the first position and the second position in response to a flow of exhaled air.

A respiratory therapy device including a housing and an interrupter valve assembly. The housing is sized for handling by a patient and defines a patient breathing passage extending from a patient end and through which a patient inhales and exhales air. The interrupter valve assembly is carried by the housing and includes a control port, a valve body, and a drive mechanism. Expiratory airflow is released from the patient breathing passage through the control port. The valve body is sized to at least partially obstruct fluid flow through the control port. The drive mechanism moves the valve body relative to the control port in response to the expiratory airflow such that the valve body repeatedly transitions between a position of maximum obstruction and a position of minimum obstruction relative to the control port to create an oscillatory positive expiratory pressure effect.

A pressure indicator for a respiratory treatment device, the pressure indicator including an instrument for measuring pressures, a conduit configured to transmit a pressure within the respiratory treatment device to the instrument, and a pressure stabilizer orifice positioned within the conduit.

A respiratory treatment device for the combined administration of respiratory muscle training (“RMT”) and oscillating positive expiratory pressure (“OPEP”) therapy, and administration of RMT using pressure threshold resistors and flow resistors with respiratory treatment devices, such as OPEP devices.

A positive pressure airway device for providing resistance in an air pathway for a patient exhaling. The device includes a central tube region, a inspiratory air passageway for passing air into the central tube region when a patient breathing through the device inhales, and an expiratory air passageway for passing air out of the central tube region when a patient breathing through the device exhales, A valve in the expiratory air passageway allows air to flow out only when a patient using the device exhales with an expiratory air pressure greater than a selected pressure, and includes a stopper and a coil spring with an interior portion that is free from any structure that would inhibit the “side-to-side” movement of the spring within the housing. The stopper has a cone-shaped air-stopping surface providing a valve angle that is different from, and is preferably slightly less than, the valve-seat angle.

The invention discloses a ventilation nasal plug with positive expiratory pressure. The ventilation nasal plug comprises a casing, wherein two through-holes are formed in the casing; a silicone tube is arranged at each through-hole; a one-way inlet valve is arranged at the bottom of the casing; and a one-way pressure adjustable outlet valve is arranged at the front end of the casing. During the use, the silicone tubes are inserted into nares of a treated patient and then are fixed through a fixing band in a knotting manner behind the head. During inspiration, the one-way inlet valve is opened, and inspiratory resistance is about zero. During expiration, the one-way inlet valve is closed, and air is restrictively expired through the one-way pressure adjustable outlet valve, so that expiratory phase in-airway positive pressure is established, and the pressure range can be adjusted by setting the one-way pressure adjustable outlet valve. The ventilation nasal plug with positive expiratory pressure can be used comfortably; and for a mask claustrophobia patient and other patients who cannot accept mask treatment, sleep is affected less, the nasal plug is easy to carry, and the patient compliance is good.

The invention discloses a device for noninvasively detecting the level of carbon dioxide in human blood. The device comprises a blowing nozzle, a prolonged expiration induction device for a user to conveniently expire, an infrared adapter window body, a signal detection processing device and a terminal, wherein the prolonged expiration induction device is used for providing expiration positive pressure, limiting flow velocity and inducing the continuous prolonged expiration of expired gas; the infrared adapter window body is used for a detection gas chamber of the expired gas, and detection infrared rays pass through the infrared adapter window body; the signal detection processing device is used for emitting the detection infrared rays to the infrared adapter window body, and detecting the CO2 partial pressure of the expired gas; the terminal is used for receiving, processing and displaying the data of the signal detection processing device. According to the device, the prolonged expiration induction device can be used for providing expiration positive pressure and limiting the flow velocity, so that a patient can be helped to conveniently prolong the expiration time and improve expiration effects; with the use of the prolonged expiration induction device, the flow velocity and pressure of the expired gas are regular, the measurement standardization degree of a testee (patient) is favorably improved, and the consistency of a measurement result is ensured.

A device for providing positive expiratory pressure therapy to a patient wherein exhaled air is at a comparatively higher pressure than atmospheric pressure, said device including a container to hold liquid, an air inlet means to allow entry of air into the container and an air outlet to allow air to vent from the container. The air inlet means includes a conduit to discharge the exhaled air. The conduit is fixed in position so that the exhaled air is discharged at or substantially adjacent the base of the container. In use liquid is introduced into the container to a predetermined level and the bottom of the conduit is below the predetermined level of liquid to provide a desired level of positive pressure and the air outlet is above the predetermined level of liquid.

A hand-held positive expiratory pressure device is presented. A float is insertable into an internal chamber of a housing and is urged towards a sealing surface by a biasing member to restrict or prevent airflow through the internal chamber. A user exhaling through the device urges the float away from the sealing surface to allow fluid to flow through the internal chamber. An adjustable stop positioned in the internal chamber selectively adjusts the amount of force exerted by the biasing member on the float.

An improved oscillating positive expiratory pressure (“OPEP”) device, for respiratory therapy having a self sterilizing flow valve capable of insertion into the curved OPEP body without tools or aids. The flow valve is also tear resistant and incorporates a flared reinforced proximal end. To maximize the benefit to patients, the adjustable therapy selector is constrained from withdrawal and is dimensioned to accept commercially available, standardized respiratory fittings adaptors, mouthpieces and “Tees” that are capable of connection to multiple respiratory therapy devices or medicated aerosol delivery units. The aesthetics have been altered by the addition of an arced handle.