A breathing device having an elongated body which may be cylindrical in shape. The body can be hollow so as to form the general shape of a tube. The tube has an opening and an exit. The user may interact with the device by placing their mouth in communication with the opening so that the user may exhale through their mouth into and through the hollow body of the device. The exit can comprise a connective part which may be configured to be coupled to one or more objects such as clothing, strings, necklaces and chains, bracelets, headbands and hair accessories, and the like.

The present invention relates to a method and a system for controlling breathing of a patient. A mixing device extends from a patient interface to control a volume of exhaled gasses. The mixing device has a first orifice connected to and in fluid communication with a first control tube and terminating in a first variable flow control valve and a second orifice connected to and in fluid communication with a second control tube and terminating in a second variable flow control valve. Further a first volume extends between the first and second orifices. A controller then controls the volume of exhaled gasses from the patient using the first and second variable flow control valves.

Gas flow control valves comprising a valve housing including a cylindrical interior passage, and a housing opening extending from the interior passage through the housing. The gas flow control valve further comprises a cylindrical rotary valve element including a sidewall, and a rotary valve element opening extending through the sidewall. The valve element is rotatably received within the interior passage of the valve housing, such that the housing opening may be selectively aligned with the rotary valve element opening, and an area of overlap of the housing opening and the valve element opening may be varied by rotating the valve element within the interior passage of the valve housing.

The present invention relates to a method and a system for controlling breathing of a patient. A mixing device extends from a patient interface to control a volume of exhaled gasses. The mixing device has a first orifice connected to and in fluid communication with a first control tube and terminating in a first variable flow control valve and a second orifice connected to and in fluid communication with a second control tube and terminating in a second variable flow control valve. Further a first volume extends between the first and second orifices. A controller then controls the volume of exhaled gasses from the patient using the first and second variable flow control valves.

A hypoxic training system is provided that dynamically adjusts the oxygen ratio in the gas provided to the user during a hypoxic training session based on the blood oxygen saturation (SPO.sup.2) level of the user. During a first training period, the hypoxic training system provides gas according to a first oxygen ratio. When it is determined that the SPO.sup.2 level of the user has reached a target SPO.sup.2 level, the hypoxic training system may provide a recovery period, during which gas according to a second oxygen ratio is provided to the user. When it is determined that the SPO.sup.2 level of the user has fallen more than a predetermined threshold below the target SPO.sup.2 level during the recovery period, the hypoxic training system may provide gas according to an increased first oxygen ratio during a subsequent training period.

The present invention includes a device for hypoxia training comprising: one or more electrochemical cells each comprising: a cathode and an anode separated by a proton exchange membrane, each of the anode and cathode in communication with an input and an output, wherein the input of the cathode is in fluid communication with ambient air, and wherein the input of the anode is in fluid communication with a source of liquid water; a power supply connected to the one or more electrochemical cells; and a mask in fluid communication with the output from the cathode of the one or more electrochemical cells, wherein oxygen is removed from the ambient air during contact with the cathode when hydrogen ions separated from liquid water by a catalyst on the anode convert oxygen in the ambient air into water.

A virus attenuator includes: a housing defining an interior and having at least one intake port fluidly coupled to the interior and a gas ejection nozzle fluidly coupled to the interior, the gas ejection nozzle being configured to couple to a mask; and at least one heater disposed in the interior between the at least one intake port and the gas ejection nozzle such that at least some gas brought into the interior through the at least one gas intake port contacts the at least one heater. The at least one heater is configured to heat contacting gas to a virus attenuating temperature before the contacting gas exits the interior through the gas ejection nozzle.

A system for reversing the effects of inhaled anesthesia reactivates and restores electrical signaling of neurons that control brain function of a subject. The system is used to administer increased inhaled carbon dioxide to a subject while causing an increase in the subject's respiratory rate and tidal volume and, thus, an increase in the subject's minute ventilation. The changes in the subject's respiration are tailored to increase extracellular acidification around neurons that control brain function, which have been affected by the inhaled anesthesia, and to inhibit ion channel activity (e.g., TREK-1 ion channel activity, etc.) to reactivate and restore electrical signaling by such neurons.

A mouthpiece includes a buccal retention feature that produces frictional attachment to the lateral buccal portions (inner cheeks) of the individual user. The mouthpiece includes a U-shaped body sized and shaped to conform to the outer face of the dental arch. The retention feature includes bulbous protrusions that project laterally outward from the body to engage the cheek. The mouthpiece, and particularly the buccal retention feature, has a width that is large enough to prevent dislodgment or removal of the device from the mouth, taking advantage of the decrease in the intercommissural distance as the mouth is opened to attempt to remove the device. The device further includes a duct portion extending forward, outside the mouth, from the body, to permit normal respiration through the duct portion. The duct portion can be configured to connect to other devices, including but not limited to, devices for rebreathing, suctioning, feeding or delivering medicaments.

High flow therapy is used to treat Cheyne-Stokes respiration and other types of periodic respiration disorders by periodic application of high flow therapy, adjustment of high flow therapy flow rates and/or periodic additions of CO2 or O2 into the air flow provided to the patient.