Breathing machine adapter

Abstract

The utility model discloses a breathing machine adapter which comprises a breathing machine protective cover, a breathing machine air guide pipe, an air guide system and a control system. The air guide system comprises an air guide pipe one-way exhaust valve, an air guide shaft, an air guide baffle and an air guide protrusion, the air guide baffle is fixedly connected with a rotating part of the air guide shaft, the edge of the air guide baffle is tightly attached to the inner wall of the breathing machine air guide pipe, and the air guide protrusion is arranged at the position, opposite to the air guide shaft, of the inner wall of the breathing machine air guide pipe. The air guide pipe one-way exhaust valve is arranged on the wall of the breathing machine air guide pipe and is closer to the breathing machine protective cover than the air guide shaft. The control system comprises a gas flow rate sensor, a sensor support, a servo motor, a servo driver and a PLC, the gas flow rate sensor is installed in a cavity in the inner side of the respirator protective cover through the sensor support, and the gas flow rate sensor is electrically connected with the PLC. The oxygen supply pressure can be automatically adjusted according to the breathing rhythm of a user, so that the breathing machine is more comfortable and efficient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to an APAP type ventilator adapter. Background Art

[0002] At present, there are two main types of single-level ventilators in the medical field, namely CPAP type and APAP type. The former is the most basic working mode of sleep apnea machine. In CPAP mode, the ventilator will rise from the initial pressure to the set pressure and will maintain a constant output pressure. APAP mode sets a pressure range. When the user wears a breathing mask, the machine automatically adjusts the oxygen supply pressure according to the user's breathing rhythm, which is more comfortable. The breathing adapter is installed between the oxygen supply device and the trachea of ​​the ventilator to periodically adjust the oxygen supply action. The working principle of the commonly used ventilator is to supply oxygen when the user inhales, and stop supplying oxygen when the user exhales with the help of the ventilator adapter. This mode has certain disadvantages. On the one hand, the oxygen provided by the oxygen supply source is easily discharged from the system structure when the user exhales; on the other hand, the user is prone to insufficient oxygen supply when inhaling. This is mainly because the current ventilator adapter relies on software algorithms to adjust the working cycle and lacks hardware support. When the user's breathing rhythm and breathing intensity change, the algorithm's adjustment of the device is likely to lag behind the user's actual needs. Summary of the invention

[0003] In view of the problem that the existing ventilator adapters have poor therapeutic effects, the utility model provides a ventilator adapter which improves the working effect of the ventilator adapter at the hardware level and dynamically adjusts the working state.

[0004] Technical Solution

[0005] To achieve the above objectives, the utility model adopts the following technical solutions.

[0006] A ventilator adapter comprises a ventilator protective cover, a ventilator airway, an airway system and a control system.

[0007] The protective cover of the ventilator is connected to one end of the airway tube of the ventilator. The air guide system includes a one-way exhaust valve of the airway tube, an air guide shaft, an air guide baffle and an air guide protrusion. The air guide shaft includes a fixed part and a rotating part. The fixed part of the air guide shaft is fixedly connected to the inner wall of the airway tube of the ventilator. The air guide baffle is fixedly connected to the rotating part of the air guide shaft. The edge of the air guide baffle is in close contact with the inner wall of the airway tube of the ventilator. The air guide protrusion is arranged on the inner wall of the airway tube of the ventilator at a position opposite to the air guide shaft. The one-way exhaust valve of the air guide tube is arranged at a position where the wall of the airway tube of the ventilator is closer to the protective cover of the ventilator than the air guide shaft. The control system includes a gas flow rate sensor, a sensor bracket, a servo motor, a servo driver and a PLC. The gas flow rate sensor is installed in the inner cavity of the protective cover of the ventilator through the sensor bracket. The servo motor is installed in the air guide shaft. The output end of the servo motor is fixedly connected to the rotating part. The servo driver is electrically connected to the servo motor. The PLC is electrically connected to the servo driver. The gas flow rate sensor is electrically connected to the PLC.

[0008] The gas flow rate sensor is located near the user's mouth and nose. In the interval between the user's exhalation and inhalation, the gas flow rate sensor will detect that the flow rate has returned to zero. Whenever the flow rate is detected to be zero, a corresponding signal is transmitted to the PLC. The PLC then controls the servo driver to operate the servo motor to control the gas guide baffle. The gas guide baffle opens during inhalation, allowing gas to be emitted from the ventilator and reach the user's mouth and nose. When the flow rate is zero, the servo motor controls the gas guide baffle to swing down and close, thereby ensuring that the gas exhaled by the user can only flow out through the one-way exhaust valve. In theory, a one-way conducting valve can also be used at the gas guide baffle to achieve a similar function, but the power for its opening and closing is too dependent on the gas movement generated by the user's own respiratory system, which puts too much burden on the user and reduces the user experience.

[0009] Furthermore, it also includes a protective cover fixing belt, which is fixedly connected to the outer wall of the protective cover of the ventilator. Beneficial Effects

[0010] The utility model provides a ventilator adapter that can automatically adjust the oxygen supply pressure according to the breathing rhythm of the user. The variable on which the ventilator adapter is adjusted - the gas flow rate at the mouth and nose - is easy to detect and has a large data fault tolerance space, which makes it easier for the adapter to respond correctly, making the use of the ventilator more comfortable and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0012] Figure 2 This is a front view of the inner side of the mask of the present utility model;

[0013] Figure 3It is a cross-sectional view of the air guide pipe of the utility model in the exhaust state;

[0014] Figure 4 It is a cross-sectional view of the air guide tube of the utility model in the air supply state;

[0015] Among them, 1-ventilator protective cover, 11-protective cover fixing belt, 2-ventilator airway tube, 21-airway tube one-way exhaust valve, 3-gas flow rate sensor, 31-sensor bracket, 41-air guide shaft, 42-air guide baffle, 43-air guide protrusion. DETAILED DESCRIPTION

[0016] In order to enable those skilled in the art to better understand the content of the present invention, the present invention is further described in conjunction with the accompanying drawings and specific implementation methods. Example

[0017] As shown in the figure, a ventilator adapter includes a ventilator protective cover 1, a ventilator airway 2, an airway system and a control system.

[0018] The ventilator protective cover 1 is connected to one end of the ventilator airway 2, and a protective cover fixing belt 11 is provided on the ventilator protective cover 1, so that the user can fix the ventilator protective cover 1 on the face and tightly hold the mouth and nose. The air guide system includes an air guide tube one-way exhaust valve 21, an air guide shaft 41, an air guide baffle 42 and an air guide protrusion 43. The air guide shaft 41 includes a fixed part and a rotating part. The fixed part of the air guide shaft 41 is fixedly connected to the inner wall of the ventilator airway 2, the air guide baffle 42 is fixedly connected to the rotating part of the air guide shaft 41, the edge of the air guide baffle 42 is in close contact with the inner wall of the ventilator airway 2, the air guide protrusion 43 is arranged on the inner wall of the ventilator airway 2 opposite to the air guide shaft 41, and the air guide one-way exhaust valve 21 is arranged at a position where the wall of the ventilator airway 2 is closer to the ventilator protective cover 1 than the air guide shaft 41. The control system includes a gas flow rate sensor 3, a sensor bracket 31, a servo motor, a servo driver and a PLC. The specific model of the gas flow rate sensor is a miniaturized NK-FS8000. The gas flow rate sensor 3 is installed in the inner cavity of the ventilator protective cover 1 through the sensor bracket 31. The servo motor is installed in the gas guide shaft 41. The output end of the servo motor is fixedly connected to the rotating part, the servo driver is electrically connected to the servo motor, the PLC is electrically connected to the servo driver, and the gas flow rate sensor 3 is electrically connected to the PLC.

[0019] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A ventilator adapter, characterized in that: It comprises a ventilator protective cover (1), a ventilator airway (2), an airway system and a control system; The ventilator protective cover (1) is in communication with one end of the ventilator airway tube (2); The air guide system comprises an air guide tube one-way exhaust valve (21), an air guide shaft (41), an air guide baffle (42) and an air guide protrusion (43); the air guide shaft (41) comprises a fixed portion and a rotating portion; the fixed portion of the air guide shaft (41) is fixedly connected to the inner wall of the ventilator air guide tube (2); the air guide baffle (42) is fixedly connected to the rotating portion of the air guide shaft (41); the edge of the air guide baffle (42) is in close contact with the inner wall of the ventilator air guide tube (2); the air guide protrusion (43) is arranged at a position on the inner wall of the ventilator air guide tube (2) opposite to the air guide shaft (41); the air guide tube one-way exhaust valve (21) is arranged at a position on the wall of the ventilator air guide tube (2) closer to the ventilator protective cover (1) than the air guide shaft (41); The control system comprises a gas flow rate sensor (3), a sensor bracket (31), a servo motor, a servo driver and a PLC. The gas flow rate sensor (3) is mounted in the inner cavity of the ventilator protective cover (1) via the sensor bracket (31). The servo motor is mounted in the gas guide shaft (41). The output end of the servo motor is fixedly connected to the rotating part. The servo driver is electrically connected to the servo motor. The PLC is electrically connected to the servo driver. The gas flow rate sensor (3) is electrically connected to the PLC.

2. A ventilator adapter according to claim 1, characterized in that: It also comprises a protective cover fixing belt (11), wherein the protective cover fixing belt (11) is fixedly connected to the outer wall of the protective cover (1) of the respirator.

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