47 results about "Continuous positive airway pressure" patented technology

The ventilation interface for sleep apnea therapy interfaces a ventilation device to the patient's airways. The ventilation interface includes a pair of nasal inserts made from flexible, resilient silicone which are oval shaped in cross-section and slightly tapered from a base proximal the ventilation supply to the distal tip end. A bead flange is disposed about the exterior of each insert at the distal end of the insert. In one embodiment, a valve is disposed between the nasal inserts and a source of positive airway pressure, the valve having a rim with a one-way diaphragm pivotally attached to the valve body with an inflatable bladder depending from the rim which seals against an exit port during inspiration and deflates to uncover the exit port on expiration. Another embodiment has nasal inserts without positive airway pressure but with a removable filter in the inserts for filtering inspired air.

The present invention comprises a nasal cannula (2), shaped to fit within a user's nares, where the nasal cannula includes at least one prong (24, 25) allowing high flow delivery of humidified gases and creates positive airway pressure in the patient's airway. The prongs have angled ends (31, 32), such that in use, gases flowing through the prongs are directed to the user's nasal passages. The nasal cannula body is partially swivelling and preferably has a ball joint connector (37, 39). In another embodiment the nasal cannula may have at least one flared end prong (31, 32) that preferably seals within a patient's nare.

An apparatus for selectively positioning intraoral anatomic features of a human patient to enhance upper airway stability for use alone or in combination with positive airway pressure as therapeutic treatment for obstructive sleep apnea and other conditions, such as snoring, which are symptomatic of upper airway instability.

A system and method for providing a pressure support therapy administered to a patient, where at least one parameter associated with the pressure support therapy is varied according to a time-base parameter variation function. More specifically, at least one parameter or at least one group of parameters associated with a pressure control relation for providing a proportional assist ventilation (PAV) or a proportional positive airway pressure (PPAP) mode of ventilation is varied according to a time-based parameter variation function to control the PAV or PPAP ventilation with a maximum degree of flexibility.

Systems, methods, and / or apparatuses for acclimatizing a user to positive airway pressure (PAP) therapy are provided. Generally, a sub-therapeutic treatment pressure is provided initially. It may be ramped up to a full treatment pressure over the course of one or more therapy sessions. The pressure level may be ramped up based on, for example, sleep state, sleep phase, patient compliance with types of treatment (e.g. bilevel vs. CPAP, etc.), clinician input (either at the site, remotely, via pre-programmed smartcards, etc.), etc. Such techniques may be used alone or in combination.

In one embodiment, a nasal cannula is shaped to fit within a user's nares, includes at least one prong allowing high flow delivery of humidified gases and creates positive airway pressure in the patient's airway. The prongs have angled ends, such that in use, gases flowing through the prongs are directed to the user's nasal passages. The nasal cannula body is partially swivelling and preferably has a ball joint connector. In another embodiment the nasal cannula may have at least one flared end prong that preferably seals within a patient's nare.

The present inventions provide positive airway pressure therapy apparatus to humidify the pressurized air delivered to a user during various positive airway pressure therapies and corresponding methods. The positive airway pressure therapy apparatus may be configured to administer one or more positive airway pressure therapies, including: continuous positive airway pressure therapy (CPAP), bi-level positive airway pressure therapy (BPAP), auto positive airway pressure therapy (autoPAP), proportional positive airway pressure therapy (PPAP), and / or other positive airway pressure therapies.

A Discontinuous Positive Airway Pressure (DPAP) device and method of using the same for reducing sleep disordered breathing events, such as sleep apnea and snoring. The DPAP device provides selective excitation to the pharyngeal conduit or another muscle or cartilage along the respiratory path, a predetermined period of time before the end of the expiration stage, in order to prematurely reverse the respiratory cycle before the total collapse of the pharyngeal conduit, thus enabling the inhalation stage to reopen and refill the pharyngeal conduit.

The invention is directed to a positive airway pressure (PAP) system with a head mounted harness assembly with a housing and a head position sensor located within or secured to the housing that detects the position of a patient's head, and communicates this head position information to a controller of the system which may be disposed within the housing having the position sensor or a second housing. The controller varies the output pressure of the pressure source, e.g. a rotary compressor, based, at least in part, on the head position information provided by the head position sensor. In a preferred embodiment, the position sensor is an accelerometer.

A continuous positive airway pressure (CPAP) system provides positive airway pressure therapy. It has been recognized that users generally prefer to breathe freely rather than to fight the pressurized air when possible. A continuous positive airway pressure (CPAP) system provides positive airway pressure therapy when required, but allows the user to breathe freely with the mask on when positive airway pressure is not required. The system has a valve that moves between two positions to open and close the unassisted breathing vent and the outlet from the flow generator.

The invention discloses a continuous positive pressure venous indwelling needle comprising a catheter component, a needle tube component and an infusion liquid connector component. The catheter component comprises a tee catheter holder and a catheter. The needle tube component comprises a needle holder tube. The infusion liquid connector component is a needleless infusion connector. The tee catheter holder is connected with the needleless infusion connector through a long catheter, and a flow-limiting clamp used for limiting flow speed of liquid medicine in the long catheter is fitted outside the long catheter. The long catheter is provided with a pressure liquid storage part. When the pressure liquid storage part contains the liquid medicine, a pressure source of the pressure liquid storage part enables the long catheter and the catheter to admit flows under positive pressure. The continuous positive pressure venous indwelling needle has the outstanding advantages that the pressure liquid storage part of the long catheter enables the long catheter and the catheter to admit the flows under positive pressure, thrombosis is prevented effectively, and the risk of medical accidents is reduced greatly.

The systems and methods described herein include a small system integrated within a tubing for providing positive air pressure to a patient. The system may include a tube with an inlet opening, an expansion section with a gas flow generator, and an outlet opening. The systems and methods described herein provide improved mobility, comfort, and usability for patients.

A method, system or computer usable program product for managing a set of active straps for a positive airway pressure (PAP) mask including detecting a pressure value with a pressure sensor, analyzing the pressure value with a processor for identifying an adjustment of the set of active straps, and performing the identified adjustment with the set of active straps.

The invention concerns a combination control for use in nasal cannula therapy, and includes a high flow, nasal cannula respiratory assistance ducted system, and a pressure relief valve having indicator structure, which typically includes a tubular body, a carrier slidable in the body, a plunger-indicator carried by the carrier, and a spring resisting carrier movement toward a cap on the body that defines an indicator window.

Systems, methods, and / or apparatuses for acclimatizing a user to positive airway pressure (PAP) therapy are provided. Generally, a sub-therapeutic treatment pressure is provided initially. It may be ramped up to a full treatment pressure over the course of one or more therapy sessions. The pressure level may be ramped up based on, for example, sleep state, sleep phase, patient compliance with types of treatment (e.g. bilevel vs. CPAP, etc.), clinician input (either at the site, remotely, via pre-programmed smartcards, etc.), etc. Such techniques may be used alone or in combination.

Methods and / or apparatus automate setting of a pressure ramp to permit pressure to gradually arrive at a treatment pressure such as in the initial or pre-sleep stages of use of a respiratory therapy pressure device for treatment of a respiratory disorder during sleep (e.g., sleep disordered breathing). In an example, apparatus for treating a respiratory disorder may include a breathable gas pressure generating device. The apparatus may include a controller, including a processor(s). The controller may be configured to collect historic sleep onset parameter(s) concerning timing of a patient falling asleep. The apparatus may determine, based on the historic sleep onset parameter(s), a pre-sleep limit. The apparatus may determine a pre-sleep profile of pressure versus time having a duration spanning the pre-sleep limit and having a plurality of ramping sub-therapeutic pressures. The apparatus may control, upon initiation of treatment, setting of the pressure generating device according to the pre-sleep profile.

A continuous positive airway pressure (“CPAP”) mask is provided. The CPAP mask includes a mask support that includes a cavity provided within the mask support. The CPAP mask further includes a mask cushion that is received within the cavity. The mask cushion and the mask support each include an opening. Air can pass from an air delivery tube through the openings and into the mask cushion. The mask cushion can be placed around a patient's breathing orifice to deliver the air to the patient. The CPAP mask further includes a forehead support that is spaced apart form the mask support. A neck portion attaches the forehead support to the mask support. The neck portion is flexible and is molded to both the mask support and the forehead support. The flexible neck portion allows the mask support to move with respect to the forehead support.

A positive pressure endotracheal device used with an air source which provides transmission of continuous positive pressure into the lungs using an inspiratory line and a one-way valve placed within the inspiratory line. This one-way valve will not allow exhaled air to return through the inspiratory line. The pressure in the device is measured with a monitor line which is connected to the air source and the disclosed Positive Pressure Endotracheal Device. The device includes: 1) WYE molded endotracheal connector interface, 2) a primary pressure release port, 3) a pressure monitor port, 4) a dispenser port (optional), 5) and inspiratory line (smooth walled), 6) a one-way valve connected to the inspiratory line, 7) an expiratory line (smooth walled), and 8) a peep valve connected on an end of the expiratory line to control lung inflation pressure at the end of exhalation.

The invention provides a continuous positive pressure remaining needle which comprises a remaining needle body, a catheter and a positive pressure keeping assembly. The remaining needle body is provided with a branch tube, the branch tube is connected with one end of the catheter, the other end of the catheter is connected with the positive pressure keeping assembly, and the positive pressure keeping assembly comprises a silicone tube, a liquid inlet one-way valve, a liquid outlet valve and a connector. The silicone tube has elasticity, the volume of the silicone tube is expanded when the silicone tube is filled with liquid, the silicone tube is connected with the liquid inlet end of the connector through the liquid inlet one-way valve, the silicone tube is connected with the liquid outlet end of the connector through the liquid outlet valve, and the connector is connected with the other end of the catheter at the same time. The continuous positive pressure remaining needle is provided with the positive pressure keeping assembly, when the remaining needle is not used for infusion, trace normal saline can be continuously injected into a blood vessel of a patient, the phenomenon of backflow and solidification of blood in the catheter of the remaining needle is avoided, and therefore the risk of thrombosis in the catheter of the remaining needle is reduced.

A breathing device for assisting patients to breath by maintaining positive airway pressure during the breathing cycle comprises a breathing channel in fluid communication with an exhaust channel extending from a junction therebetween. A gas inlet is arranged so as to introduce gas into the breathing channel. A positive pressure may be maintained in the breathing channel wherein the axis of the gas inlet channel is laterally offset at the point at which the gas inlet channel introduces the gas into the breathing channel from the axis of the narrowest part of the breathing channel.

Provided are a ventilation control device and breathing mask equipment with the same. The ventilation control device comprises a cavity, a valve assembly and a heat and moisture exchanger; the cavity is provided with a delivery port, the valve assembly is arranged at the delivery port, for the structure of the valve assembly, when expiration is conducted, the pressure in the cavity is kept larger than the atmospheric pressure, a mask vent which is communicated with the delivery port is formed in the heat and moisture exchanger or the cavity, the mask vent is used for being communicated with a breathing mask, and the heat and moisture exchanger is communicated with the delivery port, so that exhaling and inhaling are both conducted through the heat and moisture exchanger. By means of the ventilation control device, the positive pressure function of the expiratory phase is achieved, and the discomfort caused by continuous positive pressure to a patient is avoided; the ventilation control device does not need to be connected with a positive pressure gas supply device, a pipeline and the like in use, and the patient can move conveniently; when the patient goes out, the patent does not need to carry the positive pressure gas supply device. In addition, the ventilation control device is small in size, convenient to carry and low in cost.

The invention concerns a combination control for use in nasal cannula therapy, and includes a high flow, nasal cannula respiratory assistance ducted system.

Provided are a ventilation control device and breathing mask equipment with the same. The ventilation control device comprises a cavity and a valve assembly. The cavity is provided with a delivery port and a mask vent which are communicated with each other, and the mask vent is used for being communicated with a breathing mask. The valve assembly is provided with an air inlet passage and an air outlet passage which are communicated with the cavity through the delivery port. For the structure of the valve assembly, the air inlet passage is dredged when the pressure in the cavity is smaller than or equal to the atmospheric pressure, and the air outlet passage is dredged when the difference of the pressure in the cavity and the atmospheric pressure is larger than or equal to the preset value. By means of the ventilation control device, the positive pressure function of the expiratory phase is achieved, and the discomfort caused by continuous positive pressure to a patient is avoided; the ventilation control device does not need to be connected with a positive pressure gas supply device such as a CPAP respirator, a pipeline and the like in use, and the patient can move conveniently; when the patient goes out, the patent does not need to carry the positive pressure gas supply device, and the patient can wear the breathing mask equipment with the ventilation control device to conduct treatment at any time. In addition, the ventilation control device is small in size, convenient to carry and low in cost.

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.

The invention relates to a ventilation control device and breathing mask equipment with the same. The ventilation control device comprises a cavity, a valve assembly and a silencer, wherein the cavity is provided with one or more air conveying openings and a mask ventilating opening, the air conveying openings are communicated with the mask ventilating opening, and the mask ventilating opening is used for being communicated with a breathing mask; the valve assembly is arranged at least one of the air conveying openings and structured in the mode of keeping the pressure in the cavity higher than barometric pressure in the expiration process; the silencer comprises multiple silencing holes, and the multiple silencing holes are communicated with at least one of the air conveying openings so that air can enter the air conveying openings through the silencing holes and / or air exhausted by the air conveying openings can be exhausted through the silencing holes. The positive pressure function of the expiratory phase is achieved by the ventilation control device, and discomfort, caused by continuous positive pressure, of a patient is avoided; it is unnecessary to connect a positive pressure gas supply device or a pipeline, and therefore the patient can move conveniently; it is unnecessary to carry the positive pressure gas supply device when the patient goes out. The ventilation control device is small in size, convenient to carry and low in cost.

A Discontinuous Positive Airway Pressure (DPAP) device and method of using the same for reducing sleep disordered breathing events, such as sleep apnea and snoring. The DPAP device provides selective excitation to the pharyngeal conduit or another muscle or cartilage along the respiratory path, a predetermined period of time before the end of the expiration stage, in order to prematurely reverse the respiratory cycle before the total collapse of the pharyngeal conduit, thus enabling the inhalation stage to reopen and refill the pharyngeal conduit.