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 humidification chamber having suspension type float, the humidification chamber comprises a shell body, a water level control valve and a heated plate; the shell body has a water inlet, a gas inlet and a gas outlet; the water level control valve is provided with a position limiting element, a float and a sealing sheet; wherein the sealing sheet is disposed on a top end of the float, the heated plate is used for sealing the shell body to form a chamber space; when a liquid enters into the chamber space by a water inlet hole of the water inlet, the float will rise to comply with the water level increasing; when the sealing sheet contacts the water inlet hole of the water inlet, the sealing sheet can block the water inlet hole of the water inlet; when the water level of the chamber space is fell down, the position limiting element can prevent a bottom of the float from contacting the heated plate.

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.

In some embodiments, a humidification system includes a heater base having a heater plate, a humidification chamber, and circuit. The circuit can include various conduits, including an inspiratory conduit, expiratory conduit, Y-piece, patient conduit, and/or dry conduit. In use, the chamber contains a quantity of liquid. The heater base heats the heater plate, which in turn heats the liquid to a temperature that causes at least some of the liquid to become vapor, thereby humidifying the gases within the chamber. The gas is delivered to the patient via the inspiratory conduit. Various features can help control the system and ensure the patient receives gases having the desired conditions. These features can be used individually or in various combinations and subcombinations both in existing humidification systems and improved systems for respiratory humidification, laparoscopy, and other purposes.

The present disclosure discloses a humidification device, and a humidifier and a ventilator to overcome deficiencies in the prior art such as the healing efficiency of a ventilator being relatively low when the amount of water in a humidification device is adequate. The humidification device comprises a heating area and a liquid conveying device conveying n liquid to the heating area, the liquid conveying device comprising a liquid inlet pipeline, the liquid inlet pipeline extending into the heating area and extending to a bottom of the heating area, and a reserved interval being provided between an outlet of the liquid inlet pipeline and the bottom of the heating area. According to the embodiments of the present disclosure, it is ensured that the heating efficiency may be increased and the heating time may be reduced in the case of continuous use.

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.

This invention relates to a method for delivering humidified gas to a user or patient during respiratory gas ventilation support, such as, but not limited to, mechanical ventilation, continuous positive airway pressure breathing, and bi-directional positive airway pressure breathing; the method comprising the steps of heating a humidified gas from a humidified gas reservoir; transferring the heated humidified gas to a patient; receiving expired gas from a patient; heating the expired gas; and transferring the heated expired gas to a gas outlet; wherein the humidified gas and the expired gas are heated to different temperatures. Also disclosed is a humidified gas delivery system, which finds utility as a breathing circuit of a respiratory gas humidification system by delivering humidified gases to a user or patient during mechanical ventilation, continuous positive airway pressure breathing, bi-directional positive airway pressure breathing, or other mode of respiratory support provided to users or patients.

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.

In some embodiments, a humidification system includes a heater base having a heater plate, a humidification chamber, and circuit. The circuit can include various conduits, including an inspiratory conduit, expiratory conduit, Y-piece, patient conduit, and/or dry conduit. In use, the chamber contains a quantity of liquid. The heater base heats the heater plate, which in turn heats the liquid to a temperature that causes at least some of the liquid to become vapor, thereby humidifying the gases within the chamber. The gas is delivered to the patient via the inspiratory conduit. Various features can help control the system and ensure the patient receives gases having the desired conditions. These features can be used individually or in various combinations and subcombinations both in existing humidification systems and improved systems for respiratory humidification, laparoscopy, and other purposes.

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.