Abstract: A fluid passage/stop body, component, housing and apparatus, a ventilation treatment device, and an oxygen supply control method. The fluid passage/stop body comprises a sliding plate and a flexible connecting member; the flexible connecting member is connected to the sliding plate; the flexible connecting member is used for connecting to a first channel wall of a first fluid channel of a fluid passage/stop apparatus; and the sliding plate is used for moving, driven by the pressure of a fluid in the first fluid channel, to drive the flexible connecting member to flexibly deform. The fluid passage/stop body is simple in structure, can drive, in actual use, a passage/stop member to safely and reliably achieve the passage/stop of a fluid, and can significantly improve, in a ventilation treatment device, the safety of oxygen supply of the ventilation treatment device.

Abstract: An apparatus for detecting gas flow and a ventilation treatment device. The gas flow channel is provided with at least two detecting holes along a length direction of the gas flow channel, and the two detecting holes are connected to the sensor module by gas paths; the gas resistance module is located in the gas flow channel and located between the two detecting holes; the gas resistance module includes a housing, and an outer wall of the housing attaches to an inner wall of the gas flow channel; an inner wall of the housing surrounds to be a gas passing channel, a filter mesh structure is disposed in the gas passing channel, and the filter mesh structure is connected to the inner wall of the housing; and the filter mesh structure includes an entity part configured for blocking gas and a plurality of ventilation regions separated by the entity part.

Abstract: A breathing gas delivery pipe, a nasal catheter, and a ventilation therapy device. The breathing gas delivery pipe is used for delivering gas to a patient interface, and comprises a gas delivery pipe body (1); and the gas delivery pipe body (1) comprises a gas delivery channel (2) and a heat preservation structure used for preserving heat of the gas delivered in the gas delivery channel (2). In this way, the heat preservation structure preserves the heat of the gas delivery pipe body (1), so that the temperature drop in the gas delivery channel (2) can be effectively slowed down or avoided, thereby temperature drop of the gas delivered in the gas delivery channel (2) is further slowed down or avoided, and the generation of condensed water in the gas delivery channel (2) is avoided.

Abstract: A nasal plug for a nasal oxygen catheter, a nasal oxygen catheter, and a ventilation therapy device. The nasal plug comprises a body (1), which comprises a casing (11) and a cavity (12) located within the casing (11), and is provided with at least one gas outlet (2), the nasal plug further comprises a stop structure (3) that surrounds the at least one gas outlet (2) and extends from an inner wall of the casing (11) toward the cavity (12). The stop structure (3) surrounds the gas outlet (2) and extends from the inner wall of the casing (11) toward the cavity, thereby plays a role of preventing the condensed water on an inner wall of the cavity from entering the gas outlet, and solves the problem of water choking caused by the condensed water entering the patient's respiratory tract from the gas outlet.

Abstract: A humidification tank and a ventilation treatment device are provided. The humidification tank includes a tank body having a cavity, a connector pipe inserted into the cavity, and at least two branch pipes communicated with an outlet end of the connector pipe. The branch pipes can provide airflow towards different directions so that gas reaches more positions in the cavity, the existence of a position to which the gas cannot be blown in the cavity is avoided, the occurrence of a dead zone of airflow is avoided. The fluidity of gas inside the cavity is improved, and a gas flowing path is lengthened, thus improving the humidifying effect of gas.