An apparatus is provided to change the absolute humidity of a flow of air for delivery to an entrance of the airways of a patient, the change being compared to the absolute humidity of ambient air. The apparatus has a reservoir configured to hold a volume of liquid. A heating element creates vapour from the liquid. A chamber is provided to mix the flow of air with the vapour. The apparatus has a body having a first wall structure with a chamber inlet port. A closure element having an air inlet port for pneumatically connecting to a source of the flow of air is secured to the body to provide a sealed gas flow path between the air inlet port and the chamber inlet port, and a liquid trap in the gas flow path.

An apparatus is provided to change the absolute humidity of a flow of air for delivery to an entrance of the airways of a patient, the change being compared to the absolute humidity of ambient air. The apparatus has a reservoir configured to hold a volume of liquid. A heating element creates vapour from the liquid. A chamber is provided to mix the flow of air with the vapour. The apparatus has a body having a first wall structure with a chamber inlet port. A closure element having an air inlet port for pneumatically connecting to a source of the flow of air is secured to the body to provide a sealed gas flow path between the air inlet port and the chamber inlet port, and a liquid trap in the gas flow path.

A method for determining that a patient interface component comprising a vent has been replaced between therapy sessions of treatment of sleep disordered breathing, the method comprising: acquiring or receiving first vent flow rate data representing one or more estimated first vent flow rates of gas through a first vent of a patient interface in use during a first therapy session; acquiring or receiving second vent flow rate data representing one or more estimated second vent flow rates of gas through a second vent of a patient interface in use during a second therapy session after the first therapy session; and identifying, by comparison of the second vent flow rate data to the first vent flow rate data, a difference in resistance to flow through the first vent than through the second vent indicating that the second vent is not the same vent as the first vent.

A method for determining that a patient interface component comprising a vent has been replaced between therapy sessions of treatment of sleep disordered breathing, the method comprising: acquiring or receiving first vent flow rate data representing one or more estimated first vent flow rates of gas through a first vent of a patient interface in use during a first therapy session; acquiring or receiving second vent flow rate data representing one or more estimated second vent flow rates of gas through a second vent of a patient interface in use during a second therapy session after the first therapy session; and identifying, by comparison of the second vent flow rate data to the first vent flow rate data, a difference in resistance to flow through the first vent than through the second vent indicating that the second vent is not the same vent as the first vent.

There is provided a colon cleaning device comprising: a tube through which liquid and fecal matter are removed from a colon of a patient, the tube having a longitudinal axis; a cleaning head positioned at the distal end of the tube, the cleaning head having at least one opening coaxial with the longitudinal axis, the at least one opening sized for fecal matter to enter the interior of the cleaning head from the colon; at least one disassembly element disposed within the cleaning head; and an actuating mechanism which actuates the disassembly element to perform sweeping displacement inside the cleaning head so that the at least one disassembly element rotates around the longitudinal axis to slice through the fecal matter; wherein the cleaning head and the tube are sized and shaped to be displaced along the colon of a patient.

Apparatus consistent with the present disclosure may be a pipe that includes heat transfer materials that have a thermal conductivity of greater than 50 Watts per meter Kelvin. Heat transfer materials may include one or more solid heat sinks (that are rigidly connected to each other or to a portion of the pipe), Peltier devices, or loose fill of a desired size or shape. Fill included in the pipe may also absorb particulate matter or volatile organic compounds. As a user burns or vaporizes materials at one end of the pipe and sucks heated smoke or vapor into the pipe, that user may inhale cool and clean smoke or vapor. Methods and apparatus consistent with the present disclosure may allow a controller at the pipe to send sensor or consumption data to other electronic devices when a number of milligrams of a substance inhaled by a patient are monitored.

A patient interface may include a plenum chamber pressurisable to a therapeutic pressure; a seal-forming structure constructed and arranged to form a seal with a region of the patient's face; a positioning and stabilising structure to provide an elastic force to hold the seal-forming structure on the patient's head, the positioning and stabilising structure may include a tie; a vent structure; a decoupling structure configured to provide a fluid connection between the plenum chamber and an air circuit for the flow of air at the therapeutic pressure for breathing by the patient; and a frame having at least one tie attachment structure to receive the tie, wherein the frame is configured to be resiliently movable in any direction having at least one of a component parallel to the patient's sagittal plane, a component parallel to the patient's coronal plane, a component parallel to the patient's Frankfort horizontal plane.

A patient interface may include a plenum chamber pressurisable to a therapeutic pressure; a seal-forming structure constructed and arranged to form a seal with a region of the patient's face; a positioning and stabilising structure to provide an elastic force to hold the seal-forming structure on the patient's head, the positioning and stabilising structure may include a tie; a vent structure; a decoupling structure configured to provide a fluid connection between the plenum chamber and an air circuit for the flow of air at the therapeutic pressure for breathing by the patient; and a frame having at least one tie attachment structure to receive the tie, wherein the frame is configured to be resiliently movable in any direction having at least one of a component parallel to the patient's sagittal plane, a component parallel to the patient's coronal plane, a component parallel to the patient's Frankfort horizontal plane.

Described is a respiratory therapy system that comprises a respiratory therapy apparatus that is configured to provide a flow of breathable gas at, at least a first pressure and a second pressure to a patient. The respiratory therapy apparatus comprises a flow generator configured to provide the flow of breathable gas, a controller, coupled to a trigger sensor, to control respiratory therapy apparatus operations, a breathing conduit assembly that conveys the breathable gas to a patient via a patient interface, a trigger that produces a signal detectable by the trigger sensor. The controller is configured to control the flow generator to provide the flow of breathable gas at, at least the first pressure or the second pressure based on detection of the signal from the trigger.

Described is a respiratory therapy system that comprises a respiratory therapy apparatus that is configured to provide a flow of breathable gas at, at least a first pressure and a second pressure to a patient. The respiratory therapy apparatus comprises a flow generator configured to provide the flow of breathable gas, a controller, coupled to a trigger sensor, to control respiratory therapy apparatus operations, a breathing conduit assembly that conveys the breathable gas to a patient via a patient interface, a trigger that produces a signal detectable by the trigger sensor. The controller is configured to control the flow generator to provide the flow of breathable gas at, at least the first pressure or the second pressure based on detection of the signal from the trigger.