An auto feed humidification chamber with improved structure, the humidification chamber comprises a shell body, an extending tube, a float, a sealing element and a heated plate; the inside of the shell body is provided with a plurality of passage spacer plates, the extending tube is integrally formed on the inside of the shell body, the extending tube has a plurality of positioning blocks; the float is a hollow container, the central portion of the float has an extending portion, a top end of the extending portion has a plurality of hooks, the sealing element can be disposed on the top end of the extending portion; the heated plate is located below the shell body, and the heated plate is used for sealing the shell body to form a chamber space; wherein the extending portion can be suspended on the extending tube by the plurality hooks and the plurality positioning blocks, the passage spacer plates and the concave portions form at least two complicated gas passages in the chamber space, the outside surface of the float and the wall surface of the shell body form at least two annular gas passages in the chamber space.

A float-controlled valve array including a valve assembly having a conduit, a valve seat formation through which the conduit passes, and a valve body formation which is movable between a closed position in which the conduit is closed and an open position in which a flow through the conduit is possible; the valve array further including a first and a second float body having a first and a second buoyancy volume portion, respectively, wherein the first and the second float bodies are articulated pivotally on a first and a second joint, respectively, so that during specified normal operation, each float body is movable along a buoyancy axis between a lowered position and a buoyant position, and wherein the first float body and the second float body are each coupled to the valve body formation in such a way that the valve body formation is in the closed position when at least one of the float bodies is in the buoyant position, and is in the open position when both float bodies are in the lowered position; the buoyancy volume portions of the two float bodies are mutually spaced apart at a distance orthogonal to the buoyancy axis in the lowered position, wherein at least one joint is located in a body spacing region between the two buoyancy volume portions.

A respiratory humidification device includes: a casing; a separator wall to divide an interior space into filling and humidification chambers, wherein a bottom edge of the separator wall leaves a space between it and the casing bottom to define a passage allowing water to flow atop the casing bottom between the chambers, and enabling the water level to rise enough to block the passage to prevent respiratory gas from passing therethrough; a valve and float within the filling chamber to control water flow into the filling chamber to prevent the water level from rising higher than a threshold; and wherein an outer wall of the casing and the separator wall cooperate with the water surface within the humidification chamber to define an elongate tube-like pathway through which respiratory gas proceeds along a path extending generally parallel to the water surface within the humidification chamber to be humidified.

A float retention arrangement and related methods for a humidification chamber that includes at least one float that operates an inlet valve that controls a flow of water through a water inlet opening of the humidification chamber. A cover of the humidification chamber defines an interior space, at least one gas port and a float retention opening. A component forms at least a portion of a water supply conduit for supplying water from a water source to the water inlet opening. The component is insertable into the float retention opening and is positionable to contact and retain the at least one float in a non-use position. In some configurations, the component can be a water spike.

A float retention arrangement and related methods for a humidification chamber that includes at least one float that operates an inlet valve that controls a flow of water through a water inlet opening of the humidification chamber. A cover of the humidification chamber defines an interior space, at least one gas port and a float retention opening. A component forms at least a portion of a water supply conduit for supplying water from a water source to the water inlet opening. The component is insertable into the float retention opening and is positionable to contact and retain the at least one float in a non-use position. In some configurations, the component can be a water spike.

A heating and humidifying device and a heating and humidifying method. The heating and humidifying device comprises a housing (1), a water tank atomizing set, a steam generator, a heating breathing pipeline, and a controller. A tank body (11) of the water tank atomizing set is buckled with a plurality of elastic pieces (5) in the housing by means of buckling strips on the outer side wall of the water tank atomizing set; the steam generator is snap fit with grooves (8) on the two sides of the housing (1) by means of the buckling pieces (29) on the two sides; a mist outlet (13) on the tank body (11) of the water tank atomizing set is connected to a connector (38) of the steam generator; a gas outlet (28) on the steam generator is connected to the heating breathing pipeline. The heating and humidifying method comprises the steps of: (1) water injecting atomization; (2) water mist gasifying; and (3) heat insulating and gas exhausting.

A respiratory humidification device includes: a casing; a separator wall to divide an interior space into filling and humidification chambers, wherein a bottom edge of the separator wall leaves a space between it and the casing bottom to define a passage allowing water to flow atop the casing bottom between the chambers, and enabling the water level to rise enough to block the passage to prevent respiratory gas from passing therethrough; a valve and float within the filling chamber to control water flow into the filling chamber to prevent the water level from rising higher than a threshold; and wherein an outer wall of the casing and the separator wall cooperate with the water surface within the humidification chamber to define an elongate tube-like pathway through which respiratory gas proceeds along a path extending generally parallel to the water surface within the humidification chamber to be humidified.

A moisture management system for a medical device. A water trap has an inlet, outlet, first reservoir, and drain, the inlet receiving gas from a supply connection and the outlet returning the gas to a patient connection. The water trap removes moisture from the gas flowing from the inlet to the outlet, where the moisture removed is held in the first reservoir. The system further includes an evaporation chamber having an inlet, an exhaust, and a second reservoir. The inlet is fluidly coupled to the drain of the water trap to receive the moisture from the first reservoir. The moisture is subsequently held in the second reservoir. The evaporation chamber is configured such that the moisture evaporates from the second reservoir and exits as vapor via the exhaust. An evaporator increases a rate at which the moisture in the second reservoir evaporates via the exhaust.

A float retention arrangement and related methods for a humidification chamber that includes at least one float that operates an inlet valve that controls a flow of water through a water inlet opening of the humidification chamber. A cover of the humidification chamber defines an interior space, at least one gas port and a float retention opening. A component forms at least a portion of a water supply conduit for supplying water from a water source to the water inlet opening. The component is insertable into the float retention opening and is positionable to contact and retain the at least one float in a non-use position. In some configurations, the component can be a water spike.

A float retention arrangement and related methods for a humidification chamber that includes at least one float that operates an inlet valve that controls a flow of water through a water inlet opening of the humidification chamber. A cover of the humidification chamber defines an interior space, at least one gas port and a float retention opening. A component forms at least a portion of a water supply conduit for supplying water from a water source to the water inlet opening. The component is insertable into the float retention opening and is positionable to contact and retain the at least one float in a non-use position. In some configurations, the component can be a water spike.