Disclosed are a noise reduction box and a ventilation therapeutic device comprising the same. The noise reduction box comprises a shell (10) and a detection assembly, wherein the inside of the shell (10) defines a cavity; the shell (10) is provided with an air inlet (101) and an air outlet (102) which are in communication with the cavity; and the detection assembly is mounted on the shell (10) to detect the degree to which the inside of the cavity is dirty. The special detection assembly for detecting the degree to which the inside of the noise reduction box is dirty is mounted on the noise reduction box, so that the degree to which the inside of the noise reduction box is dirty can be clearly observed by means of the detection assembly, without it being necessary to disassemble the noise reduction box, and same is simple to operate and convenient for checking.

A ventilator includes a bidirectional breath detection airline and a flow outlet airline. The flow outlet airline includes an airline outlet. The flow outlet airline is configured to be connected to an invasive ventilator circuit or a noninvasive ventilator circuit. The breath detection airline includes airline inlet. The airline inlet is separated from the airline outlet of the flow outlet airline. The ventilator further includes a pressure sensor in direct fluid communication with the breath detection airline. The pressure sensor is configured to measure breathing pressure from the user and generate sensor data indicative of breathing by the user. The ventilator further includes a controller in electronic communication with the pressure sensor. The controller is programmed to detect the breathing by the user based on the sensor data received from the pressure sensor.

A patient interface for treating sleep disorder breathing includes a textile tube that also provides support for the seal forming structure. The textile tube includes an inner and outer layer that are joined along seams to form an air chamber or passageway. The textile tube can be pre-shaped so that the textile tube resiliently returns to a pre-determined shape prior to the introduction of pressurized air.

A respiratory therapy system for providing continuous positive air pressure (CPAP) to a patient may include a flow generator for generating a supply of breathable gas, a sensor to measure a physical quantity while the breathable gas is supplied, and a computing device. The computing device may be configured to: receive sensor data that is based on measured physical property of the supply of breathable gas; control the flow generator to adjust a property of the supply of breathable gas; display a question and a plurality of selectable responses; receive a first input selecting one of the selectable responses; and display a coaching response corresponding to the selected response.

A patient interface includes: a plenum chamber; a seal-forming structure; a positioning and stabilising structure; a plenum chamber insert configured to be positioned and retained within the plenum chamber; and a vent structure; wherein the plenum chamber insert has a plenum chamber insert port; wherein the plenum chamber insert has an exterior surface configured to be positioned adjacent to an interior surface of the plenum chamber; wherein when the plenum chamber insert is positioned and retained within the plenum chamber, a radial channel is formed by the interior surface of the plenum chamber and the exterior surface of the plenum chamber insert such that gas is able to pass between a patient-proximal side of the plenum chamber insert and a patient-distal side of the plenum chamber insert via the radial channel during use.

Methods and apparatus, such as a controller of a respiratory therapy device, generate a signal representing an estimate of flow rate of gas flow from the device. The respiratory therapy device may include a motor-operated blower. The method may include receiving in the controller, signals generated by a set of sensors, including measures of pressure and frequency (e.g., speed) of the motor. The controller may be configured to compute an entrained air density function and generate the estimate signal based on a function of the measures of pressure and frequency, and the entrained air density function. The entrained air density function may apply signals from additional sensors, such as atmospheric pressure, gas temperature, and ambient relative humidity, to compute atmospheric density. Control operations of the therapy device may then be based on the estimated signal, which may be applied to assess accuracy of a signal from a flow sensor.

A medicine vaporizer apparatus comprises a base with an upwardly extending heating element disposed within a rigid tube. Air is drawn into the rigid tube through an aperture in the rigid tube below the heating element and directed over the heating element to then be drawn through a flexible tube and through a filter or screen comprising an amount of medicine. Heated air flows over the amount of medicine and vaporizes the same, wherein the medicine is thereafter drawn into the lungs of a patient pulling the air therethrough with his or her mouth. Thermal separation and cooling of various parts prevents accidental injury to users and provides an inert air path for the air therethrough. The apparatus further provides controlled incineration and/or vaporization of the medicine.

Provided are a method for controlling oxygen-containing gas output by an oxygen provider, The method includes: acquiring a first pressure measurement of the oxygen-containing gas at the oxygen provider side; determining a pressure estimation of the oxygen-containing gas at the patient side based on the first pressure measurement, wherein the oxygen-containing gas experiences a pressure drop on the gas pathway to arrive at the patient side; and controlling a target parameter of the oxygen-containing gas output by the oxygen provider based on the pressure estimation. With the method or device for controlling oxygen-containing gas output by an oxygen provider, an automated solution to control the oxygen-containing gas based on a pressure measurement at the oxygen provider side is provided, and the complexity of a medical device for oxygen therapy is reduced.

An electronic vaporizer is provided. The electronic vaporizer includes a cartridge that facilitates provision of a vaporized solution to an individual. The cartridge includes a housing that includes an interior, wherein the housing is one of a polymer housing or a ceramic housing. The cartridge also includes a heating element located in the interior of the housing, wherein the heating element is configured to vaporize a solution for oral provision to the individual. The vaporizer may also include a power harvesting device operative to acquire energy from the environment for use with powering the heating element.

A system adapted to regulate pressure of a flow of breathable gas generated by a motorized blower fan. The system may include a flow estimation analyzer adapted to receive a speed signal representative of a speed of the fan and estimate a parameter representative of the flow of breathable gas (e.g., a flow rate of the breathable gas). The parameter may be determined by inputting the speed signal into a function (e.g., an equation, matrix, or lookup table), which may be selected from a plurality of predetermined functions. The predetermined function may be selected based upon a specific characteristic of the speed signal as identified at the time of estimation of the parameter representative of flow.