A humidification tank device for ventilation therapy equipment

Abstract

The present application relates to the technical field of medical devices, and relates to a humidification tank device for ventilation treatment equipment. The humidification tank device comprises, from top to bottom, an upper shell (1), a lower shell (2) and a bottom shell (3). The upper shell (1) is used for conveying gas, and the lower shell (2) is used for storing water. The present application only needs to simply buckle the upper and lower shells to form a complete humidification tank body, is simple to operate, easy to produce and manufacture, improves the yield, and greatly reduces the production cost. After the humidification tank is opened, it can be cleaned without dead angle, bacteria are not easy to remain, and it is ensured that the user will not cause other respiratory diseases due to bacteria breeding in the humidification tank.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and more specifically to a humidification tank device for ventilation therapy equipment. Background Technology

[0002] A ventilation therapy device is a device that can replace, control, or alter a person's normal physiological breathing, increase lung ventilation, improve respiratory function, reduce respiratory work consumption, and conserve cardiac reserve. Existing ventilation therapy equipment typically includes a humidifier. The humidifier tank has an air inlet connected to the airway outlet and an air outlet connected to the user interface. A certain amount of water is added to the humidifier tank. Air entering the humidifier tank from the blower comes into contact with the water before entering the user interface.

[0003] Currently, most respiratory ventilation therapy devices on the market adopt a left-right arrangement with a main unit and a humidification unit. This design has a potential problem: the humidifier unit can tilt relative to its normal orientation. In particular, during use, the tubing can easily drag the machine, causing it to tip over or fall. In this case, water from the humidification unit will flow into the fan unit, causing the core components to malfunction due to water ingress, resulting in many risks and inconveniences for users. Summary of the Invention

[0004] The purpose of this invention is to overcome the above-mentioned problems and provide a humidification tank device for ventilation therapy equipment.

[0005] To achieve the above objectives, the present invention provides a humidification tank device for a ventilation therapy equipment, the humidification tank device comprising, from top to bottom: an upper shell 1, a lower shell 2, and a bottom shell 3, wherein the upper shell 1 is used for conveying air, and the lower shell 2 is used for storing water;

[0006] The upper shell 1 is provided with an air inlet 6 and a humidification tank outlet 8 on one side. A curved air inlet baffle 9 is arranged parallel to the inner wall of the upper shell 1. One end of the curved air inlet baffle 9 is fixedly connected to the air inlet 6, and the other end is connected to the inner wall of the upper shell 1. The length of the curved air inlet baffle 9 is greater than half of the inner circumference of the upper shell 1.

[0007] The lower housing 2 is provided with a curved airway base plate 11 corresponding to the connection end of the upper housing 1, forming an airway with the curved airway baffle 9; the curved airway base plate 11 connected to the other end of the curved airway baffle 9 is provided with an airway outlet 7.

[0008] Preferably, the distance between the air outlet 7 and the air outlet 8 of the humidifier is the longest distance in the upper housing.

[0009] Preferably, an airflow guide baffle 10 is provided at the air outlet 8 of the humidification tank. The two ends of the airflow guide baffle 10 are respectively connected to the inner side wall of the upper shell 1 or the curved air passage baffle 9, and the airflow guide baffle 10, the inner side wall of the upper shell 1, and the curved air passage baffle 9 form an airflow channel; wherein, the height of the airflow guide baffle 10 does not exceed the position of the air outlet 7.

[0010] Preferably, the air outlet 8 of the humidification tank is positioned higher than the air outlet 7; the air outlet 7 is located at a position equal to 1 / 2 of the volume of the humidification tank.

[0011] Preferably, the upper housing 1 and the lower housing 2 are fastened together with the silicone sealing gasket 5.

[0012] Preferably, the cross-sectional area of ​​the airway outlet is not less than the cross-sectional area of ​​the airway.

[0013] Preferably, the humidification tank device further includes a heat-conducting substrate 4 disposed below the bottom shell 3.

[0014] Compared with the prior art, the advantages of the present invention are:

[0015] 1) The air outlet of the air passage of the present invention is not less than half a circle around the side wall of the humidification tank. Regardless of the angle at which the humidification tank is placed, there is always one of the air passage inlet or outlet positions that is higher than the maximum water level line.

[0016] 2) The cross-sectional area of ​​the air passage in this invention must be consistent to reduce the resistance of the structure to airflow.

[0017] 3) This invention increases the humidification path of the gas by designing the relative positions of the gas outlet and the humidification tank outlet and by adding airflow guide baffles, which can effectively improve the humidification efficiency.

[0018] 4) This invention only requires the simple snap-fitting of the upper and lower shells to form a complete humidification tank, which is simple to operate, easy to manufacture, improves the yield rate, and greatly reduces the production cost; after the humidification tank is opened, it can be cleaned without dead corners, and it is not easy for bacteria to remain, ensuring that users will not suffer from other respiratory diseases caused by bacteria growing in the humidification tank. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the humidification tank device of the present invention;

[0020] Figure 2 This is a schematic diagram of the air passage of the humidification tank of the present invention;

[0021] Figure 3 This is a key component of the humidification tank device of the present invention;

[0022] Figure 4This indicates the location of the cross-sectional line of the humidification tank device of the present invention;

[0023] Figure 5 This indicates the location of the cross-sectional line of the humidification tank device of the present invention;

[0024] Figure 6 This is a schematic cross-sectional view of the air inlet duct of the humidification tank of the present invention (AA section).

[0025] Figure 7 This is a schematic cross-sectional view of the air outlet DD of the upper air passage of the humidification tank of the present invention;

[0026] Figure 8 This is a schematic diagram of the air outlet of the upper air passage of the humidification tank and the BB cross-section of the air outlet of the humidification tank of the present invention.

[0027] Figure 9 This is a schematic diagram of the FF cross-section of the humidification tank under normal water storage conditions according to the present invention;

[0028] Figure 10 This is a schematic diagram of the water level line AA section when the humidification tank of the present invention is tilted forward at 90°;

[0029] Figure 11 This is a schematic diagram of the humidification tank of the present invention tilted backward at 90° (BB section).

[0030] Figure 12 This is a schematic diagram of the cross-section of the humidification tank tilted towards the main unit according to the present invention;

[0031] Figure 13 This is a schematic diagram of the cross-section of the humidification tank of the present invention at 180°C.

[0032] Figure 14 This is a schematic diagram of the curved air passage base plate of the lower shell of the humidification tank of the present invention;

[0033] Figure 15 This is a schematic diagram of the circular air passage of the humidification tank of the present invention; reference numerals:

[0034] 1. Upper shell, 2. Lower shell, 3. Bottom shell, 4. Thermally conductive substrate, 5. Silicone sealing gasket, 6. Airway inlet, 7. Airway outlet, 8. Humidifier outlet, 9. Curved airway baffle, 10. Airflow guide baffle, 11. Curved airway bottom plate. Detailed Implementation

[0035] The present invention will be further described below with reference to specific embodiments.

[0036] This invention provides a humidification tank device for ventilation therapy equipment, such as... Figure 1-5 As shown, from top to bottom, it includes: an upper shell 1, a lower shell 2, a bottom shell 3, and a heat-conducting substrate 4. The upper shell 1 is used to transport gas, and the lower shell 2 is used to store water.

[0037] The upper shell 1 is provided with an air inlet 6 and a humidification tank outlet 8 on one side. The air outlet 6 is lower than the humidification tank inlet 8. When water accidentally enters the air passage, the water can flow back to the water storage chamber by placing the humidification tank in the normal position.

[0038] A U-shaped curved airway baffle 9 is arranged parallel to the inner wall of the upper shell. One end of the U-shaped curved airway baffle 9 is fixedly connected to the airway inlet 6, and the other end is connected to the inner wall of the upper shell. The length of the U-shaped curved airway baffle 9 is greater than half of the inner circumference of the upper shell. A curved airway bottom plate 11 is correspondingly provided at the connection end between the lower shell 2 and the upper shell 1. Figure 14 As shown, an airway is formed with a U-shaped curved airway baffle 9; an airway outlet 7 is provided on the curved airway base plate (11) connected to the other end of the U-shaped curved airway baffle 9, and a humidification tank outlet 8 is provided at the diagonal position of the airway outlet 7. An airflow guide baffle 10 is provided at the humidification tank outlet 8, and the two ends of the airflow guide baffle 10 are respectively connected to the U-shaped curved airway baffle 9 to form an airflow channel. Furthermore, the cross-sectional area of ​​the airway outlet is not less than the same as the cross-sectional area of ​​the airway. The humidification tank outlet occupies part of the airway size. It is necessary to ensure that the remaining airway cross-sectional area after occupation is consistent with the cross-sectional area of ​​other positions in the airway. Ensuring that the cross-sectional area of ​​the airway is consistent can effectively reduce the resistance of the structure to the airflow.

[0039] The airflow structure of the humidifier is specifically as follows: Figure 6 As shown, gas is blown into the humidification tank from the main unit. After entering the humidification tank through the gas inlet 6 on the left side, the gas flows along the side wall of the upper shell of the humidification tank, and the gas outlet 7 is located at the end of the upper shell on the right side wall; as shown... Figure 7 As shown, the gas flows along the side wall of the upper shell of the humidification tank to the gas outlet 7, and is blown towards the water level in the lower shell of the humidification tank; as Figure 8 As shown, after the gas is blown from the air passage of the upper shell of the humidification tank to the water surface, it flows in the direction of the arrow. When the gas is blown from the air passage outlet 7 to the water surface for the first humidification, the airflow guide baffle 10 is set at the front end of the air outlet 8 of the humidification tank to block it and guide the gas to be blown to the water surface again, so that the gas is humidified a second time and then blown out from the air outlet of the humidification tank (flowing out from the air outlet of the humidification tank), which can further improve the humidification effect of the gas. The airflow guide baffle can be adjusted as needed and is not limited to this shape.

[0040] In this invention, the air outlet 7 of the air passage and the air outlet 8 of the humidification tank should be located at the furthest distance relative to the outer shape of the water tank to extend the humidification path of the gas. A circular shape is preferred for the inlet and outlet of the humidification tank, but it is not limited to a circle; it can also be designed as an ellipse, rectangle, or other closed shape. The shape of the humidification tank is not limited to this; the shape of the air passage can follow the shape of the humidification tank. The air passage is designed to surround the side wall of the humidification tank, and its position is not limited to the inner or outer wall of the humidification tank shell.

[0041] like Figure 9 The image shows the humidifier tank in its normal water storage state. The air outlet 7 is lower than the air inlet 8. If water accidentally enters the air passage, placing the humidifier tank in its normal position will allow the water to flow back into the water storage chamber along the air passage. When the humidifier tank is tilted forward 90°, the water level in the humidifier tank is as shown. Figure 10 As shown, only a small amount of water in the tank will submerge the air duct outlet 7. However, since the air duct path is much higher than the water level line, there is no risk of water flowing back into the main unit when tilted in this direction. When the humidification tank is tilted backward at 90° or towards the main unit, the water level in the tank is much lower than the air duct inlet and outlet, and water will flow out from the humidification tank outlet 8, eliminating the risk of water flowing back into the machine. Figure 11 , 12 As shown; when the humidifier is rotated 180°, the air outlet 7 in the airway is higher than the water level line. Due to the obstruction of the airflow guide baffle 10, most of the water is stored in the upper shell of the humidifier, with only a small amount flowing out from the air outlet 8. There is no risk of backflow into the main unit, and the small amount of water flowing into the tubing will not cause the patient to choke. Figure 13 As shown.

[0042] like Figure 15 In Example 2, the humidification tank can also be circular. The length of the circular curved airway baffle is greater than half of the inner circumference of the upper shell. That is, the positions of the airway inlet and airway outlet need to be greater than 1 / 2 of the circumference of the curved airway baffle.

[0043] The device of the present invention prevents water in the humidifier from flowing back into the machine and damaging the fan and related components; the device is simple and easy to mold, saves production costs, and has a simple assembly process.

[0044] The humidification tank of this invention is divided into two parts: an air inlet and a water storage space. The air outlet of the air inlet is located at the middle of the normal placement height of the humidification tank, and the air outlet of the air inlet also circles the side wall of the humidification tank at least half a circle in the front-back or left-right direction. In this way, no matter what angle the humidification tank is placed at, either the air inlet or the air outlet of the air inlet will always be higher than the maximum water level line; the positions of the air inlet and outlet of the air inlet can also be interchanged.

[0045] All aspects not described in detail in this invention can be covered using conventional technical knowledge in the field.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to the embodiments, those skilled in the art should understand that modifications or equivalent substitutions to the technical solutions of the present invention do not depart from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A humidification tank device for a ventilation therapy equipment, characterized in that, The humidification tank device comprises, from top to bottom, an upper shell (1), a lower shell (2), and a bottom shell (3). The upper shell (1) is used to transport gas, and the lower shell (2) is used to store water. Among them, the upper shell (1) is provided with an air inlet (6) and a humidification tank outlet (8) on one side. A curved air baffle (9) is arranged parallel to the inner wall of the upper shell (1). One end of the curved air baffle (9) is fixedly connected to the air inlet (6), and the other end is connected to the inner wall of the upper shell (1). The length of the curved air baffle (9) is greater than half of the inner circumference of the upper shell (1). A curved airway base plate (11) is provided at the connection end between the lower shell (2) and the upper shell (1), forming an airway with the curved airway baffle (9); an airway outlet (7) is provided on the curved airway base plate (11) connected to the other end of the curved airway baffle (9), and the airway outlet (7) is not less than half a circle around the side wall of the humidification tank in the front-back or left-right direction; The air outlet (8) of the humidifier is located higher than the air outlet (7); the air outlet (7) is located at 1 / 2 of the volume of the humidifier.

2. The humidification tank device according to claim 1, characterized in that, The distance between the air outlet (7) and the air outlet (8) of the humidifier is the longest distance in the upper shell.

3. The humidification tank device according to claim 1, characterized in that, An airflow guide baffle (10) is provided at the air outlet (8) of the humidification tank. The two ends of the airflow guide baffle (10) are respectively connected to the inner side wall of the upper shell (1) or the curved air passage baffle (9), and the airflow guide baffle (10) forms an airflow channel with the inner side wall of the upper shell (1) and the curved air passage baffle (9); wherein, the height of the airflow guide baffle (10) does not exceed the position of the air passage outlet (7).

4. The humidification tank device according to claim 1, characterized in that, The upper housing (1) and the lower housing (2) are fastened together with the silicone sealing gasket (5).

5. The humidification tank apparatus according to claim 1, characterized in that, The cross-sectional area of ​​the airway outlet is not less than the cross-sectional area of ​​the airway.

6. The humidification tank apparatus according to claim 1, characterized in that, The humidification tank device also includes a heat-conducting substrate (4) disposed below the bottom shell (3).

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