27 results about "Positive expiratory pressure" patented technology

The invention relates to the field of medical instruments, in particular to an oscillation expiration positive pressure device of an airway clearance technology, which comprises a shell and a controller, a monitoring structure is mounted in an air inlet cavity through an expiration structure, and an adjusting structure is mounted in a mounting cavity; the adjusting structure comprises a push plate and a screw rod, the screw rod penetrates through the mounting cavity and the adjusting cavity, the screw rod is sleeved with a lantern ring, the lantern ring is sleeved with a moving part, the moving part is matched with an adjusting power part, the screw rod is in threaded fit with a feedback structure, and the controller adjusts the power of the adjusting power part according to real-time monitoring data. Meanwhile, the controller controls the feedback structure to give feedback in different modes according to the movement condition of the screw rod, and the controller can correct the power of the adjusting power part according to the feedback result. Therefore, the oscillating airflow is always matched with the expiration process of the patient, so that the treatment effect and the comfort of the patient are improved.

The present invention relates to a device for airway clearance therapy (ACT) and method of using the device are disclosed herein. The device has an airflow obstruction mechanism that generates a positive expiratory pressure (PEP) via a cavity of a respiratory conducting passage in a subject, wherein the airflow obstruction mechanism comprises an airflow outlet. In an embodiment, the device further comprises an airflow resistance mechanism in fluid communication with the airflow outlet and the airflow obstruction mechanism.

The utility model relates to an oscillating positive expiration pressure sputum excretion device which comprises a holding shell, a working cavity is formed in the holding shell, an air channel is fixedly installed above the holding shell, a blocking piece is fixedly installed in the air channel, an air inlet is formed in the position, corresponding to the front portion of the blocking piece, of the upper end face of the holding shell, and an air inlet pipe is fixedly installed below the air inlet. An air nozzle is fixedly installed on one side of the tail end of the air inlet pipe, an oscillation box is arranged at the top end of the air nozzle, and an oscillation piece is rotatably installed in the oscillation box. Through the design that the oscillation box is arranged in the working cavity and the oscillation piece is installed in the oscillation box, compared with a traditional oscillation structure with a single-ball blocking structure, the oscillation piece and a cavity separated, the oscillation structure is more stable; the second air outlet for adjusting the air pressure through the adjusting knob is matched with the design of the transparent air flow indicating tube, multi-gear adjustment and visualization of the air pressure are achieved, the water content in exhaled air is effectively reduced through the design that the water vapor filtering cotton is arranged in the blocking cavity, and the service life of the product is prolonged.

A method for ventilating a patient includes providing pressure into a patient's airway over a period of time that includes a plurality of inhalation periods and a plurality of exhalation periods. The pressure is at an inspiratory positive airway pressure during the inhalation periods, and the pressure is at an expiratory positive airway pressure during the exhalation periods. The expiratory positive airway pressure less than the inspiratory positive airway pressure, and the expiratory positive airway pressure is configured to maximize lung compliance of the patient.

An oscillating positive expiratory pressure device includes a housing, a top cover, and an oscillating unit. The housing includes a bottom wall and a surrounding wall. The bottom wall has an inclined enclosing surface extending downwardly and terminating at an opening. The oscillating unit is swingably connected to and disposed within the housing. The oscillating unit includes a swing member, and first and second weighting pieces. The swing member includes a swing arm, and first and second swing blocks connected to the swing arm. The first weighting piece is carried on the first swing block. The second weighting piece is carried on the second swing block. The swing arm is swingable to move the second swing block to block and unblock the opening.

The invention discloses a pressure adjusting method and system for double-level respiratory support equipment, and the method comprises the following steps: in the expiration stage of a user, setting expiration positive pressure as initial pressure; detecting the breathing state of the user in real time, and when it is detected that the user enters an inspiration state, performing linear fitting based on the first pressure value to obtain a slope value; a first linear model of the target inspiration positive pressure is established according to the slope value, and the expiration pressure is increased to the target inspiration positive pressure at the initial pressure increasing speed; and in the inspiration stage, the maximum user flow is updated in real time, when the inspiration stage is switched to the expiration stage, a second linear model of the target expiration positive pressure is established based on the maximum user flow, and the target inspiration positive pressure is reduced to the target expiration positive pressure at the initial pressure reduction speed. The technical problem that the pressure boosting or reducing speed of existing bihorizontal respiratory support equipment is too high is solved.

A respiratory assistance device is configured to provide a flow of gas. The apparatus has: a flow generator operable to generate a flow of gas; a breathing catheter; a mouthpiece attachment for respiratory training connected to the respiratory catheter; and a controller. The controller is configured to control the flow of gas delivered to the mouthpiece attachment to control aerodynamic resistance provided at the mouthpiece attachment when a user performs one or more steps of respiratory training. The respiratory training may include normal breathing, tidal breathing, maximum ventilation breathing, halitus, fixed positive expiratory pressure (PEP)-resistant breathing, oscillatory positive expiratory pressure (OPEP)-resistant breathing, slow deep inspiration, and / or labial breathing.

The positive expiratory pressure device with flow and oscillation control offers improved control over both airflow and oscillation characteristics. The primary mechanical elements of the device include an oscillation mechanism that creates intermittent airflow occlusion during exhalation. This mechanism is coupled with an adjustment system that allows for precise control over the oscillation frequency. Another significant feature of the invention is an integrated air manifold system. The air manifold provides adjustable control over the airflow through the device. By adjusting the valve within the manifold, a user can modify the overall resistance to exhalation, thereby controlling the amount of back-pressure generated during therapy. This feature allows for a wider range of pressure settings than a static manifold, making a device suitable for use for patients with varying lung capacities and conditions.

Medical Equipment for Oscillating Positive Expiratory Pressure

Respiratory therapy sound capturing devices may be configured to cooperate with respiratory therapy devices such as an inhaler, a positive expiratory pressure (PEP) device, oscillating positive expiratory pressure (oPEP) device, a peak flow meter. Incentive spirometer, spirometer, and a respiratory muscle trainer (RMT) device to record sounds associated with use of the respiratory therapy device. The respiratory therapy sound capturing devices may include an attachment mechanism configured to attach the respiratory therapy sound capturing device to a respiratory therapy device and a microphone configured to detect sound made when a user is using the respiratory therapy device and communicate the detected sound to a transceiver communicatively coupled to the microphone and transmit sound detected by the microphone to an external computing device.

A compact, hands-free, oral positive expiratory pressure (PEP) device designed to optimize respiratory mechanics by providing controlled resistance during exhalation. The device slows the respiratory rate, prolongs exhalation, generates positive airway pressure, and thereby reduces breathlessness, enhances oxygenation, and expands functional lung capacity. It is particularly beneficial in conditions such as chronic obstructive pulmonary disease (COPD), tracheobronchomalacia, excessive dynamic airway collapse (EDAC), bronchiectasis, atelectasis, and acute respiratory distress syndromes, while also serving broader functions like stress reduction, cardiovascular support, and respiratory muscle training. The device is lightweight, portable, and lanyard-supported, allowing continuous availability for daily use and physical activity. Structurally, it is conical, features a primary airflow chamber, a mouth opening, and one or more resistance orifices that regulate exhalation pressure. By maintaining consistent PEP levels (ranging approximately 4-15 cm H2O), the device helps prevent airway collapse, promotes alveolar recruitment, and improves the ventilation-perfusion ratio.

Pulmonary treatment methods and systems. During pulmonary treatment breath cycles, a hold period of elevated inspiration pressure may promote lung region filling (and potentially recruitment) via collateral airways. Expectoration is promoted by dropping from the inspiration pressure to an undershoot pressure; de-recruitment (e.g., by airway collapse) is mitigated by raising the undershoot pressure to a positive expiratory pressure (PEP) during expiration phase. Breath cycles with a period of post-PEP suction may also be administered. Respiratory therapy systems may be programmed or re-programmed to administer this pressure protocol. In some embodiments, a system includes a hand-held unit including a patient mouthpiece, a base unit which provides pressurized gas to the mouthpiece, an electronically controllable valve in the hand-held unit for providing therapy maneuvers such as PEP (Positive Expiratory Pressure) through the mouthpiece, and a computing unit which instructs the hand-held unit to perform therapy maneuvers.

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.

A portable oscillator of positive expiratory pressure having capability for oscillating indication, the portable oscillator of positive expiratory pressure comprises a shell, an oscillation element and an indicator element; the shell has a pressurized cavity, the oscillation element has a valve to close the pressurized cavity, the indicator element is used to respond an oscillating state of the oscillation element and a static state of the oscillation element; wherein the shell and the oscillation element are respectively provided with a first magnetic element and a second magnetic element; when an expiratory airflow through the pressurized cavity drives the oscillation element to rotate, the valve will separate from the pressurized cavity to release the pressure, a distance between the first magnetic element and the second magnetic element is simultaneously shortened to quickly respond to a repulsive force which is generated between the same poles, and therefore the oscillation element can be returned to an original position; when the valve recloses the pressurized cavity, the pressurized cavity will produce an exhalation resistance.

A positive expiratory pressure-generating device for reducing breathlessness in a subject with one or more pulmonary disorders is disclosed. The device is rigid and hollow and can be held in the mouth of the subject. The device has at least one air chamber, at least one opening in the portion of the device that is held in the mouth and at least one additional airflow orifice. The device is configured to increase expiratory resistance and can be supported by the mouth of the subject without the need for additional support by hands, another device or other means.

A system and method for determining therapeutic expiratory positive airway pressure (EPAP) dosage through constant monitoring of flow patterns, which can be used to determine the expiratory time constant, and upon determining the expiratory time constant comparing that we various EPAP dosages to determine an optimal therapeutic EPAP dosage.

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.

The utility model relates to the technical field of medical auxiliary instruments. An oxygen therapy mask with a positive expiratory pressure function comprises a mask body, the center of the mask body is connected with an oxygen connector, and the oxygen connector is sequentially provided with an oxygen inlet and a one-way air inlet valve from bottom to top; the mask body is further connected with a one-way check safety valve used for exhausting and an expiration indication pressure adjusting valve used for exhausting, and the exhaust pressure of the expiration indication pressure adjusting valve can be adjusted. The one-way check safety valve and the expiration indication pressure regulating valve are located above the oxygen connector. An air outlet of the expiration indication pressure regulating valve is in butt joint with an indication channel, an indication ball is movably connected in the indication channel, and the indication ball moves in the indication channel through air flow. The pressure inside the mask is adjusted through the expiration indication pressure adjusting valve so as to meet the pressure requirements of different patients.

To provide a respiratory treatment device that realizes oscillating pressure therapy, and a flow resistor used therefor.SOLUTION: A flow resistor 550 is shaped and sized to be removably connectable to an opening of an oscillating positive expiratory pressure (OPEP) device. The flow resistor 550 includes: a housing 551 defining a conduit for the flow of air; a one-way valve 554 positioned in the conduit, and configured to open in response to the flow of air through the conduit in a first direction and close in response to the flow of air through the conduit in a second direction; and an opening 555 disposed in the conduit and configured for the flow of air into or out of the conduit. The housing 551 has a first section 552 and a second section 553, a position of the first section 552 relative to a position of the second section 553 is selectively adjustable. Selective adjustment of the first section 552 relative to the second section 553 adjusts a cross-sectional area of the opening 555.SELECTED DRAWING: Figure 66A

The invention relates to a customizable and adjustable expansion and vibration assisting 3D printing nasal cavity supporting device which comprises a hollow tubular supporting main body made of a biocompatible material through 3D printing, and the front end of the hollow tubular supporting main body is in a round blunt shape; the multi-section expansion mechanism comprises at least one expansion unit arranged along the peripheral side of the supporting main body; the expansion unit is of an annular structure, a functional element made of a shape memory material is anchored in the expansion unit, and the expansion unit is configured to be capable of radially expanding when activated; the vibration and positive pressure auxiliary module is arranged at the tail end of the supporting body and used for generating vibration and / or positive expiratory pressure. Multi-section adjustable expansion and vibration / positive pressure assistance are combined, and the personalized 3D printing and shape memory material technology is applied, so that serious nasal obstruction can be solved, and a patient can still smoothly exhale with the nose when rhinitis attacks.

An oscillating positive expiratory pressure system including an oscillating positive expiratory pressure device having a chamber, an input component in communication with the chamber, wherein the input component is operative to sense a flow and / or pressure and generate an input signal correlated to the flow or pressure, a processor operative to receive the input signal from the input component and generate an output signal, and an output component operative to receive the output signal, and display an output.

A cannula (4) configured to provide positive expiratory pressure (PEP) and oxygen to a patient, the cannula (4) comprising: a base (10) comprising an oxygen opening (11) and an inhalation opening (13); a valve (30) comprising an inhalation flap valve (31) to close the inhalation opening and a PEP flap valve (34); a valve holder (40) comprising a flow opening (41) and an exhalation opening (50), wherein the PEP flap valve closes the exhalation opening; and a nasal pillow (60) located on the valve holder.

An oscillating positive expiratory pressure system including an oscillating positive expiratory pressure device, an adapter coupled to the device, and a control module coupled to the adapter. The control module provides real time information about the use of the device, and provides feedback and storage of the information to improve the use thereof.

The invention discloses a control method of gas vibration equipment and related equipment thereof.A gas inlet connector in the gas vibration equipment is connected with a gas inlet port and an atomization connector of a first control valve, and a first gas outlet port and a second gas outlet port of the first control valve are connected with a gas inlet port of a second control valve and a gas inlet port of a third control valve; a first air outlet port of the second control valve and a first air outlet port of the third control valve are connected with an expiration positive pressure connector, a second air outlet port of the second control valve and a second air outlet port of the third control valve are connected with a vibration sputum excretion connector through a gas vibration device, and the control method comprises the steps that a selection instruction from a user is received; the first control valve is controlled to be opened and closed according to the selection instruction; receiving a work instruction from a user; and opening and closing of the second control valve and the third control valve are controlled according to the working instruction. According to the embodiment of the invention, the system structure can be simplified, and the equipment cost and maintenance difficulty are reduced.

The positive expiratory pressure device with flow and oscillation control offers improved control over both airflow and oscillation characteristics. The primary mechanical elements of the device include an oscillation mechanism that creates intermittent airflow occlusion during exhalation. This mechanism is coupled with an adjustment system that allows for precise control over the oscillation frequency. Another significant feature of the invention is an integrated air manifold system. The air manifold provides adjustable control over the airflow through the device. By adjusting the valve within the manifold, a user can modify the overall resistance to exhalation, thereby controlling the amount of back-pressure generated during therapy. This feature allows for a wider range of pressure settings than a static manifold, making a device suitable for use for patients with varying lung capacities and conditions.

A breathing assistance apparatus configured to provide a flow of gases. The apparatus has a flow generator that is operable to generate a flow of, a breathing conduit, a mouthpiece attachment for breathing exercises that is connected to the breathing conduit; and a controller. The controller is configured to control the flow of gases delivered to the mouthpiece attachment to control a pneumatic resistance provided at the mouthpiece attachment while a user performs one or more steps of a breathing exercise. The breathing exercise can include: normal breathing, tidal breathing, maximal breathing, huffing, breathing against a fixed positive expiratory pressure (PEP), breathing against an oscillating positive expiratory pressure (OPEP), slow and deep inhalation, and / or pursed lip breathing..