Pediatric suction device

Abstract

The present invention discloses a pediatric sputum suction device, which relates to the technical field of medical devices and includes a sputum suction device, a pressing block, a liquid storage bottle, a hose, a suction head, and an air bag. The lower part of the sputum suction device is rotatably connected to the pressing block, the left side of the sputum suction device is installed with a liquid storage bottle, the upper part of the liquid storage bottle is connected to the sputum suction device, the upper left side of the sputum suction device is installed with a hose, the left side of the hose is circumferentially fixed with four air bags, and the left side of the hose is connected to the suction head. In the present invention, the gas in the cylinder is squeezed into the air bag, so that the air bag is inflated and expanded. The expanded air bag contacts the inner wall of the patient's throat, which can limit the suction head. In this way, under the positioning effect of the air bag, it can be avoided that the hose will be swung when the pressing block is pressed, which will cause the suction head to swing and cause discomfort to the patient, which is likely to cause the patient to retch.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, in particular to a pediatric sputum suction device. Background Art

[0002] At present, for patients who are unable to clear their respiratory secretions by themselves, doctors often use suction machines to suck out the secretions from the patient's oral cavity, nasal cavity and other respiratory tracts in order to keep the patient's respiratory tract unobstructed and prevent the patient from suffocating. Because children's respiratory tracts are relatively thinner than those of adults, suction machines, as an auxiliary medical device, are more widely applicable in pediatrics.

[0003] When medical staff use a simple handheld manual suction pump to suck out secretions from the mouth of a child patient, they first insert the suction tube into the child patient's throat. Then, when they press the suction pump, the suction tube inserted into the patient's throat will swing in the throat due to lack of support, which can easily cause the child to dry heave and cause discomfort.

[0004] In summary, it is necessary to develop a pediatric suction device that can limit the suction tube to prevent the suction tube from swinging. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art that the suction tube is prone to swinging during suction, which can easily cause children to retch, the present invention provides a pediatric suction device that can limit the suction tube to prevent it from swinging.

[0006] To achieve the above objectives, the present invention is implemented through the following scheme: a pediatric sputum suction device, including a sputum suction pump, a pressing block, a liquid storage bottle, a hose, an air cylinder, a suction head, a first air duct, an air bag and an anti-blocking component. The lower part of the sputum suction pump is rotatably connected to the pressing block, the left side of the sputum suction pump is installed with a liquid storage bottle, the upper part of the liquid storage bottle is connected to the sputum suction pump, a hose is installed on the upper left side of the sputum suction pump, four air bags are circumferentially fixedly connected to the left side of the hose, the left side of the hose is connected to the suction head, four air cylinders are circumferentially evenly connected to the suction head, each air cylinder is slidably connected to a piston block, the four air bags are connected to the first air duct between the adjacent air cylinders, and the hose is provided with an anti-blocking component for preventing blockage.

[0007] In a preferred embodiment of the present invention, the anti-blocking component includes a slider, a soft rope and a first spring. The slider is slidably connected to the inside of the hose. Two soft ropes are connected to the right side of the slider. Both soft ropes are slidably connected to the inside of the hose. The right parts of the two soft ropes pass through the hose and the suction pump. The right ends of the two soft ropes are fixedly connected to the suction pump. Two first springs are connected between the slider and the inside of the hose.

[0008] In a preferred embodiment of the present invention, it also includes a first fixed ring, an annular guide plate, a mounting frame, a scissor-type support frame, a soft block, a bidirectional telescopic rod, a second spring and a driving component. The middle part of the hose is fixedly connected to the mounting frame, and two first fixed rings are slidably connected to the mounting frame. The left and right sides of the mounting frame are fixedly connected to the annular guide plates, and four soft blocks are slidably connected between the two annular guide plates. Each soft block is slidably connected to a scissor-type support frame between the mounting frame, and the lower part of each scissor support frame is fixedly connected to the two first fixed rings. The bottom of the first fixed ring is fixedly connected to the bidirectional telescopic rod, and the two first fixed rings are fixedly connected to the bidirectional telescopic rod. Each first fixed ring is connected to the bidirectional telescopic rod with a second spring, and the liquid storage bottle is provided with a driving component for driving the soft blocks to open.

[0009] In a preferred embodiment of the present invention, the first fixing rings move toward each other to drive the scissor-type support frame to extend, pushing the soft block to move outward to support the child's mouth.

[0010] In a preferred embodiment of the present invention, the driving assembly includes a limit frame, a sliding block, a linear spring, a connecting plate and a first connecting frame. Two limit frames are fixedly connected to the top of the suction pump. Sliding blocks are slidably connected to the two limit frames. A linear spring is connected between the two sliding blocks and the right side of the inner wall of the adjacent limit frame. The upper parts of the two sliding blocks are fixedly connected to the connecting plate. The inner sides of the two connecting plates are connected to the adjacent soft ropes. The lower sides of the two connecting plates are fixedly connected to the first connecting frame. The left sides of the two first connecting frames pass through the annular guide plate on the right and are fixedly connected to the first fixed ring on the left.

[0011] In a preferred embodiment of the present invention, it also includes an atomizing nozzle, a liquid guide tube, a water bottle and a trigger assembly. The upper part of the liquid storage bottle is fixedly connected to the water bottle through a mounting bracket. The interior of the water bottle is connected to the liquid guide tube. The bottom of the liquid guide tube is not connected to the bottom of the water bottle. The top of the liquid guide tube is connected to the atomizing nozzle. The hose passes through the atomizing nozzle. The trigger assembly is provided in the water bottle.

[0012] In a preferred embodiment of the present invention, the trigger assembly includes a connecting rod, an inclined frame, a third spring and a pressure plate. The pressure plate is slidably connected to the water bottle, and the pressure plate is slidably connected to the liquid guide tube. The top of the pressure plate is fixedly connected to two inclined frames, and the lower parts of the two inclined frames are connected to the top of the water bottle with the third spring, and the lower parts of the two first connecting frames are fixedly connected to the connecting rod.

[0013] In a preferred embodiment of the present invention, the two connecting rods move to contact the top of the adjacent inclined frame. The connecting rods move to squeeze the inclined frame to drive the pressure plate to move downward. The pressure plate squeezes the water in the water bottle into the liquid guide tube and then sprays it out through the atomizing nozzle.

[0014] In a preferred embodiment of the present invention, it also includes an oxygen tank, a second air duct, an air valve, a second connecting frame and a toggle lever. The oxygen tank is fixedly connected to the right front side of the upper part of the sputum suction device, the second air duct is connected to the left side of the oxygen tank, the left part of the second air duct is connected to the hose, the end of the second air duct is located inside the suction head, the second connecting frame is fixedly connected to the upper front side of the pressing block of the sputum suction device, the toggle lever is fixedly connected to the upper part of the second connecting frame, the air valve is connected to the right side of the second air duct, and the air valve is rotatably connected to the toggle lever.

[0015] In a preferred embodiment of the present invention, it also includes a fixed block, a second fixed ring, a top block and a fourth spring. The fixed block is fixedly connected to the inside of the suction head. The second fixed ring is fixedly connected to the inside of the suction head. A through hole is opened in the middle of the second fixed ring. The left side of the fixed block is connected to the top block through the fourth spring. The top block blocks the through hole on the second fixed ring.

[0016] The present invention has the following advantages: the present invention enters the patient's throat along with the suction head through the air cylinder and the piston block. Under the pressure of the inner wall of the throat, the gas in the air cylinder will be squeezed into the air bag, so that the air bag is inflated and expanded. The expanded air bag contacts the inner wall of the patient's throat, which can limit the suction head. In this way, under the positioning effect of the air bag, it can be avoided that the hose will not swing when pressing the pressing block, and then cause the suction head to swing, which can easily cause discomfort to the patient and even easily cause the patient to retch.

[0017] By moving the first connecting frame, the first fixing ring moves toward each other and squeezes the scissor-type support frame, driving the scissor-type support frame to retract and extend, thereby pushing the soft block to move outward to support the child's mouth. In this way, medical staff can operate to suck out the phlegm from the child's throat, preventing the child from biting the hose or the child biting the hose affecting the suction of phlegm.

[0018] The saline solution is squeezed into the atomizing nozzle through the pressure plate, so that the atomizing nozzle atomizes the saline solution. When the patient inhales the atomized saline solution, it can moisten the airway, dilute the sputum, facilitate the absorption of the sputum, and improve the absorption effect.

[0019] By turning the lever to open the air valve, the oxygen in the oxygen tank enters the patient's throat through the second airway. In this way, when suctioning sputum, the oxygen can buffer the suction force caused by the suction device, thereby protecting the patient and reducing the stimulation and damage to the patient caused by the suction.

[0020] The suction force drives the top block to move to the right, so that the sputum passes over the top block and enters the hose. When the suction force disappears, the fourth spring resets the top block to move to the left and blocks the through hole on the second fixing ring, thereby preventing the sputum from flowing back. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0022] Figure 2 It is a three-dimensional structural diagram of the components of the present invention, such as the sputum suction device, liquid storage bottle, hose and air cylinder.

[0023] Figure 3 It is a schematic diagram of the three-dimensional structure of the sputum suction device and the pressing block and other components of the present invention.

[0024] Figure 4 It is a schematic diagram of the three-dimensional structure of the air cylinder, suction head, air bag and other components of the present invention.

[0025] Figure 5 It is a schematic diagram of the three-dimensional structure of the hose, air cylinder, suction head and other components of the present invention.

[0026] Figure 6 It is a schematic diagram of the three-dimensional structure of the hose, slider, cord and other components of the present invention.

[0027] Figure 7 It is a schematic diagram of the three-dimensional structure of the limit frame, sliding block, linear spring and other components of the present invention.

[0028] Figure 8 It is a schematic diagram of the three-dimensional structure of the movable plate, mounting frame and other components of the present invention.

[0029] Figure 9 It is a schematic diagram of the three-dimensional structure of the scissor-type support frame and soft blocks and other components of the present invention.

[0030] Figure 10 It is a schematic diagram of the three-dimensional structure of the components such as the inclined frame, the pressing plate and the atomizing nozzle of the present invention.

[0031] Figure 11 It is a schematic diagram of the three-dimensional structure of the atomizing nozzle, liquid guide tube, water bottle and other components of the present invention.

[0032] Figure 12 It is a three-dimensional structural diagram of the oxygen tank, gas valve, toggle lever and other components of the present invention.

[0033] Figure 13 It is a schematic diagram of the three-dimensional structure of the fixing block, top block and other components of the present invention.

[0034] Figure 14 It is a schematic diagram of the three-dimensional structure of the suction head, top block and other components of the present invention.

[0035] The above drawings include the following reference numerals: 1, sputum suction device, 101, pressing block, 2, liquid storage bottle, 3, hose, 4, air cylinder, 401, suction head, 5, first air guide tube, 6, air bag, 7, slider, 8, soft rope, 9, first spring, 10, limit frame, 11, sliding block, 1101, linear spring, 12, connecting plate, 13, first connecting frame, 14, first fixing ring, 1401, annular guide plate, 1402, mounting frame, 15. Scissor-type support frame, 16. Soft block, 17. Bidirectional telescopic rod, 18. Second spring, 19. Connecting rod, 20. Oblique frame, 21. Third spring, 22. Pressure plate, 23. Atomizing nozzle, 2301. Liquid guide tube, 2302. Water bottle, 24. Oxygen tank, 2401. Toggle rod, 25. Second air guide tube, 26. Air valve, 27. Second connecting frame, 28. Fixed block, 29. Second fixing ring, 30. Top block, 31. Fourth spring. DETAILED DESCRIPTION

[0036] First of all, it should be noted that in the various embodiments described, identical components are provided with identical reference numerals or identical component names, wherein the disclosure contained throughout the entire description can be transferred to the same components having the same reference numerals or identical component names. Positional designations selected in the description, such as top, bottom, lateral, etc., also refer to the directly described and illustrated figures and are transferred to the new position in the event of a change in position.

[0037] Example 1: Pediatric suction device, please refer to Figures 1-6 , including a sputum suction device 1, a pressing block 101, a liquid storage bottle 2, a hose 3, an air cylinder 4, a suction head 401, a first air duct 5, an air bag 6 and an anti-blocking component. The lower part of the sputum suction device 1 is rotatably connected to the pressing block 101, the liquid storage bottle 2 is installed on the left side of the sputum suction device 1, the upper part of the liquid storage bottle 2 is connected to the sputum suction device 1, and a hose 3 is installed on the upper left side of the sputum suction device 1. Four air bags 6 are fixedly connected to the left side of the hose 3 circumferentially, and the suction head 401 is connected to the left side of the hose 3. Four air cylinders 4 are evenly connected circumferentially on the suction head 401, and each air cylinder 4 is slidably connected to a piston block, which is made of soft material. The four air bags 6 are connected to the adjacent air cylinders 4 with a first air duct 5, and an anti-blocking component is provided in the hose 3. The anti-blocking component is used to prevent blockage.

[0038] The anti-blocking component includes a slider 7, a soft rope 8 and a first spring 9. The slider 7 is slidably connected to the inside of the hose 3. The movement of the slider 7 can loosen the sputum adhering to the inner wall of the hose 3. Two soft ropes 8 are connected to the right side of the slider 7. Both soft ropes 8 are slidably connected to the inside of the hose 3. The right parts of the two soft ropes 8 pass through the hose 3 and the sputum suction device 1. The right ends of the two soft ropes 8 are fixedly connected to the sputum suction device 1. Two first springs 9 are connected between the slider 7 and the inside of the hose 3.

[0039] In order to prevent the hose 3 from swinging when the pressing block 101 is pressed during the process of sucking sputum, thereby causing the suction head 401 to swing, which may easily cause discomfort to the patient or even cause the patient to retch, the suction head 401 can be positioned, and the medical staff will insert the suction head 401 deep into the patient's mouth so that the suction head 401 enters the patient's throat. The suction head 401 drives the air cylinder 4 and the air bag 6 to enter the patient's throat. Under the pressure of the inner wall of the throat, the piston block on the air cylinder 4 moves inward, and the piston block pushes the air in the air cylinder 4 into the patient's throat. The body is pushed into the airbag 6 through the first air duct 5, so that the airbag 6 is inflated. The expanded airbag 6 contacts the inner wall of the patient's throat, which can limit the suction head 401. Then the pressing block 101 is pressed, and the pressing block 101 controls the sputum suction device 1 to suck out the patient's sputum. In this way, under the positioning effect of the airbag 6, it can be avoided that pressing the pressing block 101 will cause the hose 3 to swing, which will then cause the suction head 401 to swing, which may easily cause discomfort to the patient, or even cause the patient to retch, thereby affecting the medical staff's suction operation. When the patient's sputum is being sucked out, the movement of the pressing block 101 will pull the slider 7 to move through the soft rope 8, and the first spring 9 will be compressed, causing the slider 7 to move in the hose 3. In this way, the sputum can be prevented from adhering to the inner wall of the hose 3, thereby causing the hose 3 to be blocked, affecting the suction of the sputum. When the pressing block 101 is released, the first spring 9 is reset, driving the slider 7 to move to the left and reset. After the sputum is sucked out, the suction head 401 can be pulled out of the patient's mouth. Then, when cleaning the suction head 401, the medical staff can manually press the airbag 6 to allow the gas in the airbag 6 to return to the air cylinder 4 for the next use.

[0040] Example 2: Based on Example 1, please refer to Figure 1-Figure 2 and Figure 7-14 , also includes a first fixed ring 14, an annular guide plate 1401, a mounting frame 1402, a scissor-type support frame 15, a soft block 16, a bidirectional telescopic rod 17, a second spring 18 and a driving component, the middle of the hose 3 is fixedly connected to the mounting frame 1402, the mounting frame 1402 is slidably connected to two first fixed rings 14, the left and right sides of the mounting frame 1402 are fixedly connected to the annular guide plates 1401, the annular guide plates 1401 are hollow, and the two annular guide plates 1401 are slidably connected to each other. There are four soft blocks 16, each of which is slidably connected to a scissor-type support frame 15 between the soft block 16 and the mounting frame 1402, and the lower part of each scissor-type support frame 15 is fixedly connected to the two first fixing rings 14, and the bottom of the first fixing ring 14 is fixedly connected to a two-way telescopic rod 17, and the two first fixing rings 14 are fixedly connected to the two-way telescopic rod 17, and a second spring 18 is connected between each first fixing ring 14 and the two-way telescopic rod 17, and the liquid storage bottle 2 is provided with a driving component for driving the soft block 16 to open.

[0041] The driving assembly includes a limiting frame 10, a sliding block 11, a linear spring 1101, a connecting plate 12 and a first connecting frame 13. Two limiting frames 10 are fixedly connected to the top of the suction device 1. The sliding blocks 11 are slidably connected to the two limiting frames 10. The upper parts of the two sliding blocks 11 are fixedly connected to the connecting plates 12. The inner sides of the two connecting plates 12 are connected to the adjacent soft ropes 8. The two sliding blocks 11 are connected to the right side of the inner wall of the adjacent limiting frame 10 with a linear spring 1101. The lower sides of the two connecting plates 12 are fixedly connected to the first connecting frame 13. The left sides of the two first connecting frames 13 pass through the annular guide plate 1401 on the right and are fixedly connected to the first fixed ring 14 on the left.

[0042] In order to prevent the child from biting the hose 3 during the suction process of sputum from the child's throat, thereby affecting the suction of sputum, and to prevent the child from biting the hose 3, the child's mouth needs to be fixed to prevent the child from affecting the suction of sputum. When the soft rope 8 moves to the right, it drives the connecting plate 12 to move to the right, and then drives the sliding block 11 to move to the right. The linear spring 1101 is compressed, and then drives the first connecting frame 13 to move to the right through the connecting plate 12, so that the first connecting frame 13 pulls the first fixing ring 14 on the left to move to the right, and the first fixing ring 14 on the left pushes the lower part of the scissor-type support frame 15 to retract, thereby driving the first fixing ring 14 on the right to move to the left, and the two-way telescopic rod 17 and the second spring 18 are compressed, so that the scissor-type support frame 15 is extended, thereby pushing the soft block 16 to move outward to open the child's mouth, making it easier for medical staff to operate to suck out the sputum from the child's throat, and preventing the child from biting the hose 3 or the child biting the hose 3 to affect the suction of sputum. When the soft rope 8 moves to the left and resets, the linear spring 1101 resets, driving the connecting plate 12 and the first connecting frame 13 to move to the left and reset. At the same time, the second spring 18 resets, driving the two-way telescopic rod 17 to extend and reset, and then driving the two first fixing rings 14 to move outward and reset, so that the scissor-type support frame 15 is expanded and reset, and then driving the hose 3 to move inward and retract, making it easier to take the hose 3 out of the child's mouth.

[0043] It also includes a connecting rod 19, an inclined frame 20, a third spring 21, a pressure plate 22, an atomizing nozzle 23, a liquid guide tube 2301 and a water bottle 2302. The upper part of the liquid storage bottle 2 is fixedly connected to the water bottle 2302 through the mounting frame 1402. The interior of the water bottle 2302 is connected to the liquid guide tube 2301. The bottom of the liquid guide tube 2301 is not connected to the bottom of the water bottle 2302. The water bottle 2302 is slidably connected to the pressure plate 22. The pressure plate 22 is slidably connected to the liquid guide tube 2301. The top of the liquid guide tube 2301 is connected to the atomizing nozzle. 23. The hose 3 passes through the atomizing nozzle 23. The top of the pressing plate 22 is fixedly connected to two inclined frames 20. The lower parts of the two inclined frames 20 are connected to the top of the water bottle 2302 with a third spring 21. The lower parts of the two first connecting frames 13 are fixedly connected to connecting rods 19. The two connecting rods 19 move and contact the tops of the adjacent inclined frames 20. The connecting rods 19 move to squeeze the inclined frames 20 to drive the pressing plate 22 to move downward. The pressing plate 22 squeezes the water in the water bottle 2302 into the liquid guide tube 2301, and then sprays it out through the atomizing nozzle 23.

[0044] To ensure that sputum can be sucked out smoothly, children can inhale the atomized saline to humidify the airway and dilute the sputum, thereby ensuring the suction of sputum. After the hose 3 enters the patient's mouth, the atomizing nozzle 23 will cover the patient's mouth and nose. The water bottle 2302 is filled with saline. During the sputum suction process, when the first connecting frame 13 moves to the right, it drives the connecting rod 19 to move to the right, so that the connecting rod 19 squeezes the inclined frame 20 to move downward, the third spring 21 is stretched, and the inclined frame 20 moves downward, driving the pressure plate 22 to move downward. The pressure plate 22 squeezes the saline in the water bottle 2302 through the liquid guide tube 2301 into the atomizing nozzle 23, and the atomizing nozzle 23 atomizes the saline. When the patient inhales the atomized saline, it can humidify the airway and dilute the sputum, which is convenient for sucking sputum and improving the suction effect. When the first connecting frame 13 moves to the left and resets, it drives the connecting rod 19 to move to the left and reset, and the third spring 21 resets, driving the inclined frame 20 and the pressure plate 22 to move upward and reset.

[0045] It also includes an oxygen tank 24, a second air duct 25, an air valve 26, a second connecting frame 27 and a toggle rod 2401. The second connecting frame 27 is fixedly connected to the upper front side of the pressing block 101 of the sputum suction device 1, the oxygen tank 24 is fixedly connected to the upper right front side of the sputum suction device 1, the left side of the oxygen tank 24 is connected to the second air duct 25, the left part of the second air duct 25 is connected to the hose 3, the end of the second air duct 25 is located inside the suction head 401, the upper part of the second connecting frame 27 is fixedly connected to the toggle rod 2401, the right side of the second air duct 25 is connected to the air valve 26, and the air valve 26 is rotatably connected to the toggle rod 2401.

[0046] In order to prevent the suction force generated by the suction device 1 from causing damage to the patient's throat when sucking sputum, oxygen can be introduced to buffer the suction force and reduce the irritation and damage to the patient caused by the suction force. When the pressing block 101 rotates, it drives the second connecting frame 27 to move to the right, and the second connecting frame 27 drives the toggle rod 2401 to move to the right, so that the toggle rod 2401 drives the air valve 26 to rotate and open, and then the oxygen in the oxygen tank 24 enters the patient's throat through the second air duct 25. In this way, when sucking sputum, oxygen can buffer the suction force caused by the suction device 1, thereby protecting the patient and reducing the irritation and damage to the patient caused by the suction force. When the pressing block 101 reverses and resets, it drives the second connecting frame 27 to move to the left and reset, and then drives the toggle block to move to the left and reset, so that the air valve 26 is closed.

[0047] It also includes a fixed block 28, a second fixed ring 29, a top block 30 and a fourth spring 31. The second fixed ring 29 is fixedly connected to the inside of the suction head 401, and the fixed block 28 is fixedly connected to the inside of the suction head 401. The second fixed ring 29 is located on the left side of the fixed block 28. A through hole is opened in the middle of the second fixed ring 29. The left side of the fixed block 28 is connected to the top block 30 through the fourth spring 31. The top block 30 blocks the through hole on the second fixed ring 29.

[0048] In order to prevent the sputum from flowing back after being sucked, the sputum can be blocked. During the suction process of the suction head 401, the suction force generated in the hose 3 will drive the top block 30 to move to the right, and the fourth spring 31 will be compressed, thereby sucking the sputum into the hose 3. When the suction force disappears, the fourth spring 31 will reset, driving the top block 30 to move to the left and reset, so that the top block 30 blocks the through hole on the second fixing ring 29, thereby preventing the sputum from flowing back.

[0049] The above is a detailed introduction to the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method and core idea of ​​the present application. At the same time, for those skilled in the art, based on the idea of ​​the present application, there may be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A pediatric sputum suction device, characterized in that: The invention comprises a sputum suction device (1), a pressing block (101), a liquid storage bottle (2), a hose (3), an air cylinder (4), a suction head (401), a first air guide tube (5), an air bag (6) and an anti-blocking component. The lower part of the sputum suction device (1) is rotatably connected to the pressing block (101). The left side of the sputum suction device (1) is provided with a liquid storage bottle (2). The upper part of the liquid storage bottle (2) is connected to the sputum suction device (1). The upper left side of the sputum suction device (1) is provided with a hose (3). Four air bags (6) are circumferentially fixedly connected to the left side of the hose (3). The left side of the hose (3) is connected to the suction head (401). Four air cylinders (4) are circumferentially evenly connected to the suction head (401). A piston block is slidably connected to each air cylinder (4). The four air bags (6) are connected to the first air guide tube (5) between the adjacent air cylinders (4). An anti-blocking component for preventing blockage is provided in the hose (3). The utility model also includes a first fixing ring (14), an annular guide plate (1401), a mounting frame (1402), a scissor-type support frame (15), a soft block (16), a bidirectional telescopic rod (17), a second spring (18) and a driving component. The middle part of the hose (3) is fixedly connected to the mounting frame (1402). Two first fixing rings (14) are slidably connected to the mounting frame (1402). The left and right sides of the mounting frame (1402) are fixedly connected to the annular guide plates (1401). Four soft blocks (16) are slidably connected between the two annular guide plates (1401). ), each soft block (16) is slidably connected to a scissor-type support frame (15) between the mounting frame (1402), the lower part of each scissor-type support frame (15) is fixedly connected to the two first fixing rings (14), the bottom of the first fixing ring (14) is fixedly connected to a two-way telescopic rod (17), the two first fixing rings (14) are fixedly connected to the two-way telescopic rod (17), and a second spring (18) is connected between each first fixing ring (14) and the two-way telescopic rod (17), and a driving component for driving the soft block (16) to open is provided on the liquid storage bottle (2).

2. The pediatric sputum suction device according to claim 1, characterized in that: The anti-blocking component includes a slider (7), a soft rope (8) and a first spring (9). The slider (7) is slidably connected to the inside of the hose (3). Two soft ropes (8) are connected to the right side of the slider (7). The two soft ropes (8) are both slidably connected to the inside of the hose (3). The right parts of the two soft ropes (8) pass through the hose (3) and the sputum suction device (1). The right ends of the two soft ropes (8) are fixedly connected to the sputum suction device (1). Two first springs (9) are connected between the slider (7) and the inside of the hose (3).

3. The pediatric sputum suction device according to claim 2, characterized in that: The first fixing ring (14) moves toward each other, driving the scissor-type support frame (15) to extend and push the soft block (16) to move outward to support the child's oral cavity.

4. The pediatric sputum suction device according to claim 3, characterized in that: The driving assembly includes a limit frame (10), a sliding block (11), a linear spring (1101), a connecting plate (12) and a first connecting frame (13). The top of the sputum suction device (1) is fixedly connected to two limit frames (10). The two limit frames (10) are both slidably connected to the sliding blocks (11). The two sliding blocks (11) are connected to the right side of the inner wall of the adjacent limit frame (10) by a linear spring (1101). The upper parts of the two sliding blocks (11) are fixedly connected to the connecting plate (12). The inner sides of the two connecting plates (12) are connected to the adjacent soft rope (8). The lower sides of the two connecting plates (12) are fixedly connected to the first connecting frame (13). The left sides of the two first connecting frames (13) pass through the annular guide plate (1401) on the right and are fixedly connected to the first fixed ring (14) on the left.

5. The pediatric sputum suction device according to claim 4, characterized in that: The apparatus further comprises an atomizing nozzle (23), a liquid guide tube (2301), a water bottle (2302), and a trigger assembly. The upper portion of the liquid storage bottle (2) is fixedly connected to the water bottle (2302) via a mounting frame (1402). The interior of the water bottle (2302) is connected to the liquid guide tube (2301). The bottom of the liquid guide tube (2301) is not connected to the bottom of the water bottle (2302). The top of the liquid guide tube (2301) is connected to the atomizing nozzle (23). The hose (3) passes through the atomizing nozzle (23). The water bottle (2302) is provided with a trigger assembly.

6. The pediatric sputum suction device according to claim 5, characterized in that: The trigger assembly includes a connecting rod (19), an inclined frame (20), a third spring (21) and a pressure plate (22). The pressure plate (22) is slidably connected to the inside of the water bottle (2302). The pressure plate (22) is slidably connected to the liquid guide tube (2301). The top of the pressure plate (22) is fixedly connected to two inclined frames (20). The lower parts of the two inclined frames (20) are connected to the top of the water bottle (2302) with the third spring (21). The lower parts of the two first connecting frames (13) are fixedly connected to the connecting rod (19).

7. The pediatric sputum suction device according to claim 6, characterized in that: The two connecting rods (19) move to contact the top of the adjacent inclined frame (20), and the connecting rod (19) moves to squeeze the inclined frame (20) to drive the pressure plate (22) to move downward. The pressure plate (22) squeezes the water in the water bottle (2302) into the liquid guide tube (2301) and then sprays it out through the atomizing nozzle (23).

8. The pediatric sputum suction device according to claim 7, characterized in that: The invention also includes an oxygen tank (24), a second air guide tube (25), an air valve (26), a second connecting frame (27) and a toggle lever (2401). The oxygen tank (24) is fixedly connected to the right front side of the upper part of the sputum suction device (1). The second air guide tube (25) is connected to the left side of the oxygen tank (24). The left side of the second air guide tube (25) is connected to the hose (3). The end of the second air guide tube (25) is located inside the suction head (401). The upper front side of the pressing block (101) of the sputum suction device (1) is fixedly connected to the second connecting frame (27). The upper part of the second connecting frame (27) is fixedly connected to the toggle lever (2401). The right side of the second air guide tube (25) is connected to the air valve (26). The air valve (26) is rotatably connected to the toggle lever (2401).

9. The pediatric sputum suction device according to claim 8, characterized in that: The suction head (401) further comprises a fixed block (28), a second fixed ring (29), a top block (30) and a fourth spring (31). The fixed block (28) is fixedly connected to the interior of the suction head (401). The second fixed ring (29) is fixedly connected to the interior of the suction head (401). A through hole is opened in the middle of the second fixed ring (29). The left side of the fixed block (28) is connected to the top block (30) via the fourth spring (31). The top block (30) blocks the through hole on the second fixed ring (29).

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