Negative pressure saliva suction device

Abstract

The utility model discloses a kind of negative pressure saliva suction devices, comprising: micropump unit, including shell, control panel and micropump body;Drainage bottle, including bottle cap and bottle body, the bottle cap is detachably connected with bottle body, the bottle cap is integrally integrated with micropump unit;Hose, one end with the drainage bottle communication, other end is connected with suction head, the suction head and hose outside all adopt medical silica gel material, the suction head has multiple liquid suction holes;Trachea, one end is connected with micropump body, other end with drainage bottle communication.The suction head and hose outside of the utility model all adopt medical silica gel material, will not cause damage to oral mucosa, to solve the problem of hard suction head poor comfort degree.Simultaneously, the suction head has multiple liquid suction holes, can effectively prevent the problem that whole saliva suction device is caused by single liquid suction hole to be blocked and fails.Multiple liquid suction holes can ensure that other holes can still work normally when one or several holes are blocked, improve the reliability and efficiency of device.

Description

Technical Field

[0001] This utility model relates to the field of medical and nursing technology, and in particular to a negative pressure saliva suction device. Background Technology

[0002] In the field of healthcare, especially for patients with symptoms such as bulbar palsy or respiratory infections, effective management of oral secretions is crucial for preventing aspiration, reducing the risk of pulmonary infection, and improving patients' quality of life. Traditionally, these patients may be unable to lie flat and sleep due to excessive saliva buildup in their mouths, increasing the difficulty of care and patient discomfort.

[0003] Currently, there are various saliva suction devices on the market, designed to remove saliva and other liquids from the mouth through negative pressure suction. However, these devices often have some design limitations. For example, some saliva suction devices use rigid suction heads, which are not only uncomfortable but also prone to causing damage to the oral mucosa. In addition, the single suction hole design is prone to clogging, thus interrupting saliva suction. Utility Model Content

[0004] To overcome at least one of the defects described in the prior art, this invention provides a negative pressure saliva suction device. This solves the problems of comfort and clogging of the suction port.

[0005] The technical solution adopted by this utility model to solve its problem is:

[0006] A negative pressure saliva suction device includes: a micropump unit, the micropump unit comprising a housing, a control board, and a micropump body, the control board and the micropump body being electrically connected and both disposed within the housing; a drainage bottle, the drainage bottle comprising a cap and a bottle body, the cap being detachably connected to the bottle body, the cap being integrally integrated with the micropump unit; a flexible tube, one end of the flexible tube being connected to the drainage bottle, and the other end being connected to a suction tip, the suction tip and the flexible tube being made of medical-grade silicone material, the suction tip having multiple suction holes; and an air tube, one end of the air tube being connected to the micropump body, and the other end being connected to the drainage bottle.

[0007] By adopting the above solution, both the suction tip and the outer surface of the tubing are made of medical-grade silicone. Medical-grade silicone is soft and comfortable, and will not damage the oral mucosa, thus solving the problem of poor comfort caused by rigid suction tips. At the same time, the suction tip has multiple suction holes, which effectively prevents the entire saliva suction device from malfunctioning due to the blockage of a single suction hole. Multiple suction holes ensure that even if one or more holes are blocked, the others can still function normally, thereby improving the reliability and efficiency of the device.

[0008] Furthermore, the flexible tube comprises, from the outside to the inside, a silicone tube and a metal-shaped flexible tube, with the metal-shaped flexible tube fitted inside the silicone tube that protrudes from the drainage bottle.

[0009] By adopting the above solution, the outer layer of the silicone tube provides softness and comfort, allowing it to conform to oral structures of different shapes and angles, reducing patient discomfort. The inner layer of the metal-shaped tube provides necessary support and shaping, ensuring that the tube remains flexible while being less prone to deformation or damage, thus extending its service life. The presence of the metal-shaped tube also allows the tube to maintain a certain shape and stability, facilitating precise adjustment of the suction tip position by the operator within the oral cavity, improving the convenience and accuracy of the operation.

[0010] Furthermore, the metal-shaped flexible tube is a gooseneck tube, a corrugated tube, or an aluminum alloy tube.

[0011] By adopting the above solution, the adjustable angle of the hose can be achieved, making the handle end curved for easy operation.

[0012] Furthermore, a pressure sensor is installed between the micropump body and the air tube.

[0013] By adopting the above scheme, the negative pressure value generated by the micropump body can be monitored in real time. This is crucial for ensuring that the device operates within a safe and effective negative pressure range. Precise pressure control can prevent excessively high negative pressure from causing discomfort or harm to the patient, while also avoiding excessively low negative pressure that leads to poor suction.

[0014] Furthermore, the negative pressure value of the micropump body is 40.0 kPa-53.5 kPa.

[0015] By adopting the above solution, the negative pressure value can be monitored and dynamically adjusted in real time within a safe range, ensuring stable suction and adaptability to oral mucosal tolerance.

[0016] Furthermore, both the hose and the air tube are inserted into the bottle cap, and the length of the hose extending into the bottle cap is greater than the length of the air tube extending into the bottle cap.

[0017] By adopting the above solution, the liquid absorption problem caused by the two being too close can be avoided, thus achieving gas-liquid separation.

[0018] Furthermore, at least one anti-backflow device is provided inside the hose.

[0019] By adopting the above method, the liquid in the tube can be prevented from flowing back into the mouth.

[0020] Furthermore, sound-absorbing cotton is spaced out inside the trachea.

[0021] By adopting the above solution, the noise generated by the micro-pump body can be greatly reduced, thus significantly minimizing its impact on human sleep.

[0022] Furthermore, the suction tip is spherical or ellipsoidal, the suction holes are evenly spaced along the circumference of the suction tip, and the suction holes are provided in at least one layer.

[0023] By adopting the above-mentioned design, the suction tip can better adapt to the curved surface of the oral cavity, ensuring that the suction holes are evenly distributed on the tip's surface. This design increases the contact area between the suction tip and oral secretions, thereby improving suction efficiency. Simultaneously, the evenly spaced suction holes ensure uniform spacing between them, preventing localized over-suction or missed suction.

[0024] Furthermore, the control board is also provided with a button unit, which is used to control the negative pressure of the micropump body, and the button unit is exposed on the surface of the outer shell.

[0025] By adopting the above approach, the negative pressure value of the micropump can be precisely adjusted according to the patient's specific condition and needs. This personalized setting helps ensure that the device operates within a safe and effective negative pressure range, while reducing patient discomfort. Precise control also means better meeting treatment needs and improving treatment outcomes.

[0026] In summary, the negative pressure saliva suction device provided by this utility model has the following technical effects:

[0027] 1. Both the suction head and the outer surface of the tubing are made of medical-grade silicone. This material is soft and skin-friendly, and will not cause pressure or damage to the oral mucosa, thus significantly improving the patient's comfort during use. At the same time, medical-grade silicone also has good elasticity and adaptability, which can conform to the oral structure of different patients, ensuring the suction effect while reducing discomfort.

[0028] 2. The suction head is equipped with multiple suction holes. This design effectively disperses suction force, preventing a single suction hole from becoming clogged due to excessive suction. Even if one or more holes are clogged, the others can still function normally, ensuring the device's continuous suction capability. It also enhances the device's reliability and reduces the risk of device failure due to clogged suction holes.

[0029] 3. The negative pressure suction generated by the micro-pump unit can efficiently and quickly remove saliva and liquid from the mouth, reducing patient discomfort and nursing difficulty. The design of the tubing and suction head allows medical staff to flexibly adjust the position and direction of the suction head to adapt to the oral structure and needs of different patients, thereby improving saliva suction efficiency.

[0030] 4. The cap is detachably connected to the bottle body, facilitating cleaning and maintenance by medical personnel. Meanwhile, the medical-grade silicone suction tip and tubing are easy to clean and sterilize, ensuring the hygiene and safety of the device. Attached Figure Description

[0031] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present utility model;

[0032] Figure 2 This is a longitudinal cross-sectional structural diagram of an embodiment of the present utility model.

[0033] The meanings of the reference numerals in the attached drawings are as follows: 1. Micropump unit; 11. Outer shell; 12. Control board; 13. Micropump body; 2. Drainage bottle; 21. Bottle cap; 22. Bottle body; 3. Tube; 31. Silicone tube; 32. Metal-shaped tube; 4. Air tube; 5. Pressure sensor; 6. Anti-backflow device; 7. Sound-absorbing cotton; 8. Suction head; 81. Liquid suction hole; 9. Button unit. Detailed Implementation

[0034] To better understand and implement this invention, the technical solutions in the embodiments of this invention will be clearly and completely described and discussed below with reference to the accompanying drawings. Obviously, what is described here is only a part of the examples of this invention, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the protection scope of this invention.

[0035] To facilitate understanding of the embodiments of this utility model, further explanations and descriptions will be provided below with reference to the accompanying drawings and specific embodiments. These embodiments do not constitute a limitation on the embodiments of this utility model.

[0036] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0038] See Embodiment 1 of this utility model. Figures 1-2As shown, a negative pressure saliva suction device is disclosed, including a micropump unit 1, a drainage bottle 2, a tubing 3, and an air tube 4. The micropump unit 1 includes a housing 11, a control board 12, and a micropump body 13. The control board 12 and the micropump body 13 are electrically connected and both are located within the housing 11, making the control board 12 and the micropump body 13 an integrated design to provide continuous negative pressure. Preferably, the micropump body 13 uses a brushless silent motor. The drainage bottle 2 includes a cap 21 and a bottle body 22, which are detachably connected. Preferably, the cap 21 and the bottle body 22 are connected by a threaded seal. Preferably, the cap 21 is integrally integrated with the micropump unit 1. One end of the tubing 3 is connected to the drainage bottle 2, and the other end is connected to the suction head 8. Both the suction head 8 and the tubing 3 are made of medical-grade silicone. The suction head 8 has multiple suction holes 81. One end of the air tube 4 is connected to the micropump body 13, and the other end is connected to the drainage bottle 2. Preferably, the other end of the air tube 4 is connected to the micropump body 13 via a sealing ring. Because both the suction head 8 and the tubing 3 are made of medical-grade silicone, which is soft and comfortable and will not damage the oral mucosa, the problem of poor comfort caused by rigid suction heads 8 is solved. Simultaneously, the suction head 8 has multiple suction holes 81, which effectively prevents the entire saliva suction device from malfunctioning due to blockage of a single suction hole 81. Multiple suction holes 81 ensure that even if one or more holes are blocked, the other holes can still function normally, thereby improving the reliability and efficiency of the device.

[0039] It should be noted that, in order to ensure that the drainage bottle 2 can store a large amount of liquid, the capacity of the drainage bottle 2 is designed to be more than 500ml, preferably 1.5L.

[0040] In some embodiments, the flexible tube 3 comprises, from the outside to the inside, a silicone tube 31 and a metal-shaped flexible tube 32. The metal-shaped flexible tube 32 is fitted inside the silicone tube 31 that protrudes from the drainage bottle 2. The outer layer of the silicone tube 31 provides softness and comfort, allowing it to conform to oral structures of different shapes and angles, reducing patient discomfort. The metal-shaped flexible tube 32, as the inner layer, provides necessary support and shaping for the flexible tube 3, ensuring that the flexible tube 3 remains flexible while being less prone to deformation or damage, thus extending its service life. The presence of the metal-shaped flexible tube 32 allows the flexible tube 3 to maintain a certain shape and stability, facilitating precise adjustment of the suction tip 8 position within the oral cavity by the operator, improving the convenience and accuracy of operation. Optionally, the metal-shaped flexible tube 32 can be a gooseneck tube, a corrugated tube, or an aluminum alloy tube, enabling the flexible tube 3 to have an adjustable angle, resulting in a curved handle end for easy operation. In other embodiments, a wire can be directly embedded inside the flexible tube 3, thereby achieving a bendable and shape-adjustable effect for the flexible tube 3 itself. In this embodiment 1, the silicone tube 31 is made of medical-grade silicone with a thickness of 1.5 mm, the metal-shaped flexible tube 32 is a gooseneck tube with an outer diameter of 2.5 mm, and the silicone tube 31 is sleeved on the outside of the gooseneck tube.

[0041] In some embodiments, to more precisely control the negative pressure value for suction, a pressure sensor 5 is provided between the micropump body 13 and the trachea 4, capable of monitoring the negative pressure value generated by the micropump body 13 in real time. This is crucial for ensuring the device operates within a safe and effective negative pressure range. Precise pressure control prevents excessively high negative pressure from causing discomfort or harm to the patient, while also avoiding insufficient suction due to excessively low negative pressure. Preferably, the negative pressure value of the micropump body 13 is 40.0 kPa-53.5 kPa. Within this range, the negative pressure value can be monitored and dynamically adjusted in real time to ensure stable suction and adaptability to oral mucosal tolerance.

[0042] In some embodiments, a gas-liquid separation structure is typically provided to avoid gas-liquid cross-contamination between the trachea 4 and the tubing 3. In this embodiment 1, both the tubing 3 and the trachea 4 are inserted into the bottle cap 21, and the length of the tubing 3 extending into the bottle cap 21 is greater than the length of the trachea 4 extending into the bottle cap 21. Preferably, the length of the silicone tubing 3 extending into the bottle is ≥10cm, and the length of the trachea 4 extending into the bottle is ≤5cm, thereby avoiding liquid absorption problems caused by their close proximity and achieving gas-liquid separation.

[0043] In some embodiments, to prevent liquid backflow, at least one anti-backflow device 6 is provided inside the hose 3. The anti-backflow device 6 is preferably a one-way valve or a finned structure. Of course, in other embodiments, the specific structure is not limited, as long as it can achieve the anti-backflow effect, thereby preventing the liquid in the hose 3 from flowing back into the oral cavity.

[0044] In some embodiments, to further reduce the noise generated by the water suction device, sound-absorbing cotton 7 is spaced out inside the air pipe 4, which can greatly reduce the noise generated by the micropump body 13 and greatly reduce the impact on human sleep. The noise level is effectively controlled below 30dB. Optionally, the signal transmission between the circuitry in the control board 12 and the pressure sensor 5 uses a low-power circuit to avoid introducing electronic noise that could interfere with the silent operation of the micropump body 13.

[0045] To improve the uniformity of liquid aspiration of the suction tip 8, in some embodiments, the suction tip 8 is designed as a spherical or ellipsoidal shape, with the suction holes 81 evenly spaced along the circumference of the suction tip 8, and at least one layer of suction holes 81. This allows the suction tip 8 to better adapt to the curved surface structure of the oral cavity, ensuring that the suction holes 81 are evenly distributed on the surface of the suction tip 8. This design increases the contact area between the suction tip 8 and oral secretions, thereby improving suction efficiency. Simultaneously, the evenly spaced arrangement of the suction holes 81 ensures uniform spacing between them, avoiding localized over-absorption or leakage. In this embodiment 1, the suction tip 8 is sealed and fixed to the end of the tubing 3 by a snap-fit, and the suction holes 81 are arranged in a double-layered annular pattern, with 6 holes per layer, each with a diameter of 1.2 mm. Even when a single hole is blocked, the remaining holes still maintain more than 80% suction power. In other embodiments, the specific diameter, number, and layer number of the annular holes are not limited.

[0046] Optionally, in some embodiments, the control panel 12 is further provided with a button unit 9, which is used to control the negative pressure of the micropump body 13. The button unit 9 is exposed on the surface of the outer casing 11, allowing for precise adjustment of the negative pressure value of the micropump body 13 according to the patient's specific condition and needs. This personalized setting helps ensure that the device operates within a safe and effective negative pressure range, while reducing patient discomfort. Precise control also means better meeting treatment needs and improving treatment outcomes.

[0047] The specific embodiments of this utility model are as follows:

[0048] The control board 12 and the micropump body 13 are fixed inside the outer shell 11. One end of the trachea 4 is sealed and inserted into the cap, and the other end is connected to the micropump body 13 through a sealing ring. The pressure sensor 5 is installed at the inlet of the trachea 4. Then, the end of the tubing 3 without the suction head 8 is passed through the outer shell 11 and then through the bottle cap 21 to fix and protect the tubing 3. The patient is placed in a lateral decubitus position. The operator checks the negative pressure value of the device and sets it to 45 kPa through the button unit 9. The tubing 3 is bent to a suitable curvature with one hand, and the suction head 8 is placed at the lowest point of the mouth, such as under the tongue. The button is pressed again to turn on the micropump body 13. Saliva enters the tubing 3 through the suction hole 81. After being separated by the drainage bottle 2, the liquid is stored at the bottom of the bottle, and the gas is discharged through the trachea 4. The pressure sensor 5 feeds back data to the control board 12 in real time. When the negative pressure exceeds 53.5 kPa, the frequency is automatically reduced with an error of ±1.5 kPa. During cleaning, disassemble bottle 22 to pour out the liquid, disinfect the suction head 8 and hose 3 by soaking them in 75% alcohol, and sterilize the gooseneck tube by high temperature and high pressure.

[0049] In summary, the negative pressure saliva suction device provided by this utility model has the following technical effects:

[0050] 1. Both the suction head 8 and the tubing 3 are made of medical-grade silicone. This material is soft and skin-friendly and will not cause pressure or damage to the oral mucosa, thus significantly improving the patient's comfort during use. At the same time, medical-grade silicone also has good elasticity and adaptability, which can conform to the oral structure of different patients, ensuring the suction effect while reducing discomfort.

[0051] 2. The suction head 8 is equipped with multiple suction holes 81. This design effectively disperses the suction force, preventing a single suction hole 81 from becoming clogged due to excessive suction. Even if one or more holes are clogged, the others can still function normally, ensuring the device's continuous suction capability. This also enhances the device's reliability and reduces the risk of device failure due to clogging of the suction holes 81.

[0052] 3. The negative pressure suction generated by the micro-pump unit 1 can efficiently and quickly remove saliva and liquid from the oral cavity, reducing patient discomfort and nursing difficulty. The design of the tubing 3 and the suction head 8 allows medical staff to flexibly adjust the position and direction of the suction head 8 to adapt to the oral structure and needs of different patients, thereby improving saliva suction efficiency.

[0053] 4. The cap 21 is detachably connected to the bottle body 22, facilitating cleaning and maintenance by medical personnel. Simultaneously, the medical-grade silicone suction tip 8 and tubing 3 are easy to clean and disinfect, ensuring the hygiene and safety of the device.

[0054] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

Claims

1. A negative pressure saliva suction device, characterized in that, include: The micropump unit (1) includes a housing (11), a control board (12) and a micropump body (13). The control board (12) and the micropump body (13) are electrically connected and are both located inside the housing (11). Drainage bottle (2), the drainage bottle (2) includes a bottle cap (21) and a bottle body (22), the bottle cap (21) and the bottle body (22) are detachably connected, and the bottle cap (21) is integrated with the micro pump unit (1); A flexible tube (3) is connected at one end to the drainage bottle (2) and at the other end to a suction head (8). Both the suction head (8) and the flexible tube (3) are made of medical silicone. The suction head (8) has multiple suction holes (81). The air tube (4) is connected at one end to the micropump body (13) and at the other end to the drainage bottle (2).

2. The negative pressure saliva suction device according to claim 1, characterized in that, The hose (3) includes a silicone tube (31) and a metal shaping hose (32) from the outside to the inside. The metal shaping hose (32) is fitted inside the silicone tube (31) that is exposed outside the drainage bottle (2).

3. A negative pressure saliva suction device according to claim 2, characterized in that, The metal-shaped flexible tube (32) is a gooseneck tube, a corrugated tube, or an aluminum alloy tube.

4. The negative pressure saliva suction device according to claim 1, characterized in that, A pressure sensor (5) is provided between the micropump body (13) and the air tube (4).

5. A negative pressure saliva suction device according to claim 1, characterized in that, The negative pressure value of the micropump body (13) is 40.0 kPa-53.5 kPa.

6. A negative pressure saliva suction device according to claim 1, characterized in that, Both the hose (3) and the air tube (4) are inserted into the bottle cap (21), and the length of the hose (3) extending into the bottle cap (21) is greater than the length of the air tube (4) extending into the bottle cap (21).

7. A negative pressure saliva suction device according to claim 1, characterized in that, At least one anti-backflow device (6) is provided inside the hose (3).

8. A negative pressure saliva suction device according to claim 1, characterized in that, Sound-absorbing cotton (7) is provided at intervals inside the trachea (4).

9. A negative pressure saliva suction device according to claim 1, characterized in that, The suction tip (8) is spherical or ellipsoidal, and the suction holes (81) are equally spaced along the circumference of the suction tip (8), and the suction holes (81) are provided in at least one layer.

10. A negative pressure saliva suction device according to claim 1, characterized in that, The control board (12) is also provided with a button unit (9), which is used to control the negative pressure of the micropump body (13), and the button unit (9) is exposed on the surface of the outer shell (11).

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