Auxiliary sputum suction device for pediatric department and method thereof

Abstract

The invention discloses a pediatric auxiliary sputum suction device and method, and relates to the technical field of pediatric auxiliary sputum suction. The pediatric auxiliary sputum suction device comprises a handle, a negative pressure pump is fixedly arranged at the upper end of the handle, a negative pressure pipe is fixedly arranged at the left end of the negative pressure pump, a communicating pipe is fixedly connected to the top end of the negative pressure pipe, and a sputum suction pipe is fixedly connected to the left end of the communicating pipe; a sputum suction head is fixedly arranged at the top end of the sputum suction pipe. The sputum suction tube and the sputum suction head can extend into the oral throat of a patient, the air cylinder and the piston block enter the throat of the patient along with the sputum suction head, and under extrusion of the inner wall of the throat, air in the air cylinder can be extruded into the air bag through the air guide tube, so that the air bag is inflated and swelled and makes contact with the inner wall of the throat of the patient; according to the sputum suction device, the sputum suction head can be limited, so that under the positioning effect of the air bag, the sputum suction head can be prevented from swinging due to random movement of a patient during sputum suction, and discomfort of the patient during sputum suction is avoided.

Description

Technical Field

[0001] This invention relates to the field of pediatric assisted suctioning technology, specifically to a pediatric assisted suctioning device and method. Background Technology

[0002] Pediatrics is a comprehensive medical science that studies the physical and mental development, health care, and disease prevention of children. All health and hygiene issues involving children and adolescents fall under the scope of pediatrics. Its patients are those in their growth and development stage.

[0003] The mission of pediatrics is to continuously explore pediatric medical theories, reduce morbidity and mortality rates based on practice, enhance the physical fitness of children and adolescents, and improve the level of health care and disease prevention for children and adolescents. The age range for pediatrics varies from country to country, generally encompassing infancy to adolescence.

[0004] Currently, for patients who are unable to clear secretions from their respiratory tract on their own, doctors often use suction devices to remove secretions from the patient's mouth, nasal cavity, and other respiratory tracts in order to keep the patient's airway open and prevent the patient from suffocating. Because children's airways are relatively narrower than adults', suction devices are more widely applicable in pediatrics as an auxiliary medical device.

[0005] When medical staff use a simple handheld suction device to remove secretions from the mouth of a child patient, they first insert the suction tube into the child's throat. When the suction device is pressed, the suction tube inserted into the patient's throat will swing in the throat due to the lack of support, which can easily cause discomfort to the child. This can lead to resistance during suctioning and reduce work efficiency. Summary of the Invention

[0006] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows: A pediatric auxiliary suction device and method includes a handle, a negative pressure pump fixedly mounted on the upper end of the handle, a negative pressure tube fixedly mounted on the left end of the negative pressure pump, a connecting tube fixedly connected to the top end of the negative pressure tube, a suction tube fixedly connected to the left end of the connecting tube, a suction head fixedly mounted on the top end of the suction tube, a limiting mechanism provided on the suction head, a support mechanism installed on the suction tube, a dilution mechanism provided on the connecting tube, side frames fixedly connected to both ends of the connecting tube, a liquid storage tank movably mounted on the lower end of the connecting tube, a threaded section one on the outer wall of the top end of the liquid storage tube, and a threaded section two on the inner wall of the lower end of the connecting tube. The limiting mechanism includes multiple sets of air bladders. The lower side of the multiple sets of air bladders is fixedly connected at equal distances to the outer wall of the top end of the suction tube. An air guide tube is fixedly provided on the left side of the air bladder. Multiple sets of grooves are equally spaced inside the suction head. An air cylinder is fixedly provided inside the groove. A piston block is movably provided inside the air cylinder.

[0007] Preferably, the top of the air cylinder extends through the groove, the top of the air cylinder is placed outside the suction head, the top of the air guide tube can pass through the suction head and be fixedly connected to one side of the air cylinder, and the air cylinder is interconnected with the air bag through the air guide tube.

[0008] Preferably, the limiting mechanism includes a collar, the inside of which is fixedly installed to the outside of the suction tube. Mounting seats are fixedly provided on both sides of the collar. A lead screw is rotatably fitted onto one side of each mounting seat. A threaded seat is threadedly connected to the outside of the lead screw. A knob is fixedly connected to the top of the lead screw. Hinge seats one is fixedly connected to both the upper and lower sides of the threaded seat. A connecting plate is rotatably connected to the inner side of hinge seat one. A second hinge seat two is rotatably installed on the top of the connecting plate. A support plate is fixedly provided on the upper side of hinge seat two. A silicone pad is fixedly glued to the upper side of the support plate.

[0009] Preferably, the support plate is semi-arc-shaped, and both sets of support plates are symmetrically provided with the upper and lower ends of the suction tube.

[0010] Preferably, the dilution mechanism includes a fixed frame, the lower side of which is fixedly installed on both sides of the upper end of the connecting pipe, a liquid bottle is fixedly connected to the top of the fixed frame, an injection head is fixedly provided on the top of the liquid bottle, a flow pipe is fixedly provided at the lower end of the liquid bottle, and a valve is fixedly connected to the upper part of the flow pipe.

[0011] Preferably, the injection head is movably fitted with a sealing cap, the lower end of the flow tube is fixedly installed with the upper end of the connecting tube, and the liquid bottle is interconnected with the connecting tube through the flow tube.

[0012] Preferably, the connecting pipe is connected to the negative pressure pump through a negative pressure pipe, and the bottom end of the side frame is fixedly connected to both ends of the negative pressure pump.

[0013] Preferably, the connecting pipe is connected to the negative pressure pump through a negative pressure pipe, and the bottom end of the side frame is fixedly connected to both ends of the negative pressure pump.

[0014] S1. The air pump and piston block are inserted into the patient's throat along with the suction head. Under the pressure of the inner wall of the throat, the air in the air pump is squeezed into the air bladder through the air tube, causing the air bladder to inflate. The inflated air bladder contacts the inner wall of the patient's throat, which can limit the position of the suction head. In this way, the positioning effect of the air bladder can prevent the suction head from swinging due to the patient's movement during suctioning, thereby avoiding discomfort to the patient during suctioning.

[0015] S2. When the screw rotates forward, the threaded seat with threaded mounting moves inward. As the two sets of threaded seats gradually approach each other, the upper and lower support plates gradually move away from each other through the rotation of hinge seat one, hinge seat two and connecting plate. In this way, the upper and lower support plates can support and fix the patient's upper and lower jaws. At this time, the patient's oral cavity can be fixed, so as to prevent the child's mouth from closing and biting the suction tube during the suctioning process, thus affecting the suctioning of sputum.

[0016] S3. By opening the valve, the disinfectant in the bottle can flow into the storage tank through the flow tube, so that the disinfectant comes into contact with the sputum and mixes and dilutes it, thereby avoiding environmental pollution.

[0017] S4. When suctioning sputum, the negative pressure pump can be turned on, so that the negative pressure pump can use the negative pressure tube to generate negative pressure suction between the suction head and the suction head, thereby absorbing the sputum in the patient's throat and sucking the sputum into the storage tank. This can complete the sputum absorption work for children.

[0018] S5. The liquid storage tank is connected to the lower end of the connecting pipe via threaded section one and threaded section two, which facilitates disassembly and makes it easier to process the diluted sputum.

[0019] Compared with the prior art, the present invention has the following beneficial effects: This invention provides a pediatric assisted suction device and method. Through a limiting mechanism, the suction tube and suction head extend into the patient's mouth and throat. An air cylinder and piston block enter the patient's throat along with the suction head. Under the pressure of the throat wall, the gas in the air cylinder is squeezed through the air delivery tube into the air bladder, causing the air bladder to inflate. The inflated air bladder contacts the patient's throat wall, limiting the suction head's position. This positioning effect of the air bladder prevents the suction head from swinging due to patient movement during suctioning, thus avoiding discomfort. After the sputum is suctioned out, the suction head is removed from the patient's mouth. When cleaning the suction head, medical staff can manually press the air bladder to return the gas inside to the air cylinder via the air delivery tube for future use.

[0020] This invention provides a pediatric auxiliary suction device and method. Through a support mechanism, when the suction tube enters the patient's oral cavity, the support plate is simultaneously placed in the patient's oral cavity. At this time, a knob can be rotated, causing the screw to rotate forward. The forward rotation of the screw causes the threaded seats to move inward. As the two sets of threaded seats gradually approach each other, the rotation of hinge seat one, hinge seat two, and connecting plate causes the upper and lower support plates to gradually move away. This allows the upper and lower support plates to support and fix the patient's upper and lower jaws, thus fixing the patient's oral cavity and preventing the child from biting the suction tube during suction, which would affect sputum suction. By reversing the screw, the threaded seats on both sides gradually move away, causing the upper and lower support plates to gradually move closer, thereby releasing the support effect on the patient's oral cavity. This facilitates the removal of the suction tube and suction head from the patient's oral cavity.

[0021] This invention provides a pediatric auxiliary suction device and method. Through a dilution mechanism, a negative pressure pump can be activated during suctioning, allowing the suction head and suction tube to generate negative pressure suction, thereby absorbing sputum from the patient's throat and drawing it into a storage tank. This completes the sputum absorption process for pediatric patients. By opening a valve, disinfectant from the liquid bottle flows into the storage tank through a flow tube, allowing the disinfectant to come into contact with and mix with the sputum, thus preventing environmental pollution. The storage tank is connected to the lower end of the connecting pipe via threaded sections one and two, facilitating disassembly and processing of the diluted sputum. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the pediatric auxiliary suction device and method of the present invention; Figure 2 This is a structural schematic diagram showing the details of the present invention; Figure 3 This is a schematic diagram of the structure from the side view of the present invention; Figure 4 This is a schematic diagram of the limiting mechanism of the present invention; Figure 5 This is a structural schematic diagram showing the details of the limiting mechanism of the present invention; Figure 6 This is a schematic diagram of the support mechanism of the present invention; Figure 7 This is a structural schematic diagram showing the details of the support mechanism of the present invention; Figure 8 This is a schematic diagram of the dilution mechanism of the present invention.

[0023] In the diagram: 1. Handle; 2. Negative pressure pump; 3. Negative pressure pipe; 4. Connecting pipe; 5. Suction tube; 6. Suction head; 7. Limiting mechanism; 8. Support mechanism; 9. Dilution mechanism; 10. Side frame; 11. Liquid storage tank; 12. Threaded section one; 13. Threaded section two; 71. Airbag; 72. Air guide tube; 73. Groove; 74. Air cylinder; 75. Piston block; 81. Collar; 82. Mounting seat; 83. Lead screw; 84. Threaded seat; 85. Knob; 86. Hinge seat one; 87. Connecting plate; 88. Hinge seat two; 89. Support plate; 810. Silicone pad; 91. Fixing frame; 92. Liquid bottle; 93. Injection head; 94. Flow tube; 95. Valve. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to embodiments: like Figures 1-8 As shown, the present invention provides a pediatric auxiliary suction device and method, including a handle 1, a negative pressure pump 2 fixedly mounted on the upper end of the handle 1, a negative pressure tube 3 fixedly mounted on the left end of the negative pressure pump 2, a connecting tube 4 fixedly connected to the top end of the negative pressure tube 3, a suction tube 5 fixedly connected to the left end of the connecting tube 4, a suction head 6 fixedly mounted on the top end of the suction tube 5, a limiting mechanism 7 on the suction head 6, a support mechanism 8 mounted on the suction tube 5, a dilution mechanism 9 mounted on the connecting tube 4, side frames 10 fixedly connected to both ends of the connecting tube 4, a liquid storage tank 11 movably mounted on the lower end of the connecting tube 4, a threaded section 12 on the outer wall of the top end of the liquid storage tube, and a threaded section 13 on the inner wall of the lower end of the connecting tube 4.

[0025] The connecting pipe 4 is connected to the negative pressure pump 2 through the negative pressure pipe 3, and the bottom end of the side frame 10 is fixedly connected to both ends of the negative pressure pump 2.

[0026] The suction head 6 is internally connected to the connecting tube 4 through the suction tube 5, the liquid storage tube is internally connected to the connecting tube 4, and the threaded section 12 and the threaded section 13 are threadedly connected.

[0027] S1. The air pump 74 and piston block are inserted into the patient's throat along with the suction head 6. Under the pressure of the inner wall of the throat, the air in the air pump 74 is squeezed into the air bag 71 through the air delivery tube 72, causing the air bag 71 to inflate. The inflated air bag 71 contacts the inner wall of the patient's throat, which can limit the position of the suction head 6. In this way, under the positioning effect of the air bag 71, the suction head 6 can be prevented from swinging due to the patient's movement during suctioning, thereby avoiding discomfort to the patient during suctioning.

[0028] S2. When the screw 83 rotates forward, it drives the threaded seat 84 to move inward. As the two sets of threaded seats 84 gradually approach each other, they will use the rotation of the first hinge seat 86, the second hinge seat 88 and the connecting plate 87 to drive the upper and lower support plates 89 to gradually move away. In this way, the upper and lower support plates 89 can support and fix the patient's upper and lower jaws. At this time, the patient's oral cavity can be fixed, so as to prevent the child's mouth from closing and biting the suction tube 5 during the suctioning process, thus affecting the suctioning of sputum.

[0029] S3. By opening valve 95, the disinfectant in bottle 92 can flow into storage tank 11 through flow tube 94, so that the disinfectant comes into contact with sputum and mixes and dilutes it, thereby avoiding environmental pollution.

[0030] S4. When suctioning sputum, the negative pressure pump 2 can be turned on, so that the negative pressure pump 2 can use the negative pressure tube 3 to generate negative pressure suction on the suction head 6 and the suction head 6, thereby absorbing the sputum in the patient's throat and sucking the sputum into the storage tank 11, thus completing the sputum absorption work for children.

[0031] S5. The liquid storage tank 11 is connected to the lower end of the connecting pipe 4 by the threaded section 12 and the threaded section 13, which facilitates disassembly and makes it easier to process the diluted sputum.

[0032] In this solution, the negative pressure pump 2 and negative pressure tube 3 can automatically draw sputum from the patient's throat into the reservoir 11 without relying on manual suction, thus avoiding discomfort to the patient. The side frame 10 can provide stable support for the negative pressure pump 2. The reservoir 11 utilizes the threaded connection between threaded section 12 and threaded section 13 to facilitate disassembly and further processing of sputum.

[0033] like Figures 4-5 As shown, the limiting mechanism 7 includes multiple sets of airbags 71. The lower side of the multiple sets of airbags 71 is fixedly connected to the outer wall of the top end of the suction tube 5 at equal distances. An air guide tube 72 is fixedly provided on the left side of the airbags 71. Multiple sets of grooves 73 are opened at equal distances inside the suction head 6. An air cylinder 74 is fixedly provided inside the groove 73. A piston block 75 is movably provided inside the air cylinder 74.

[0034] The top of the air pump 74 extends through the interior of the groove 73. The top of the air pump 74 is placed outside the suction head 6. The top of the air tube 72 can pass through the suction head 6 and be fixedly connected to one side of the air pump 74. The air pump 74 is connected to the air bag 71 through the air tube 72.

[0035] In this design, pressure pushes the piston block 75 inside the air cylinder 74 to slide inward, compressing the air inside the air cylinder 74 into the air bladder 71 through the air delivery tube 72. After gas injection, the air bladder 71 rapidly inflates, extending outward from the groove 73 and gradually making close contact with the inner wall of the pharynx. When the pressure of the air bladder 71 reaches equilibrium with the restraining force of the inner wall of the pharynx, the piston block stops sliding, and the air bladder 71 maintains a stable inflated state, firmly fixing the suction head 6 in its current position through friction. Even if the patient slightly twists or coughs due to discomfort, the suction head 6 will not swing significantly, remaining firmly in the target suction area, avoiding scratching or puncturing the pharyngeal mucosa and significantly reducing patient discomfort.

[0036] like Figures 6-7 As shown, the limiting mechanism 7 includes a collar 81, which is fixedly installed inside the suction tube 5. Mounting seats 82 are fixedly provided on both sides of the collar 81. A lead screw 83 is fitted and rotated on one side of the mounting seat 82. A threaded seat 84 is threadedly connected to the outside of the lead screw 83. A knob 85 is fixedly connected to the top of the lead screw 83. A first hinge seat 86 is fixedly connected to both the upper and lower sides of the threaded seat 84. A connecting plate 87 is rotatably connected to the inner side of the first hinge seat 86. A second hinge seat 88 is rotatably installed on the top of the connecting plate 87. A support plate 89 is fixedly provided on the upper side of the second hinge seat 88. A silicone pad 810 is fixedly glued to the upper side of the support plate 89.

[0037] The support plate 89 is set in a semi-circular shape, and both sets of support plates 89 are symmetrically provided with the upper and lower ends of the suction tube 5.

[0038] In this solution, the silicone pad 810 fits tightly against the upper and lower jaws, and the combined action of friction and support restricts oral closure, effectively preventing children from biting the suction tube 5, while not affecting the suctioning operation in the throat.

[0039] In this solution, the support structure and the limiting structure provide dual protection for oral cavity support and pharyngeal positioning. The support mechanism 8 fixes the oral cavity to prevent it from closing, while the limiting mechanism 7 fixes the suction head 6 to prevent it from swinging inside the pharynx. The two can be adjusted independently and work together to fully cover the key risk points of suctioning operations. This solution is especially suitable for agitated and crying children, and significantly reduces the difficulty of operation.

[0040] like Figure 8 As shown, the dilution mechanism 9 includes a fixed frame 91. The lower side of the fixed frame 91 is fixedly installed on both sides of the upper end of the connecting pipe 4. A liquid bottle 92 is fixedly connected to the top of the fixed frame 91. A liquid injection head 93 is fixedly provided on the top of the liquid bottle 92. A flow pipe 94 is fixedly provided at the lower end of the liquid bottle 92. A valve 95 is fixedly connected to the upper part of the flow pipe 94.

[0041] A sealing cap is movably installed on the injection head 93, and the lower end of the flow tube 94 is fixedly installed with the upper end of the connecting tube 4. The liquid bottle 92 is connected to the connecting tube 4 through the flow tube 94.

[0042] In this procedure, after sputum collection is completed, the negative pressure pump 2 is turned off, while maintaining the connection between the storage tank 11 and the connecting pipe 4. The valve 95 on the flow tube 94 is slowly opened, allowing the disinfectant in the bottle 92 to flow into the storage tank 11 under gravity through the flow tube 94 and the connecting pipe 4. This ensures the disinfectant mixes with the sputum, guaranteeing thorough dilution and disinfection, killing bacteria and viruses in the sputum, and preventing cross-contamination during subsequent processing. The disinfectant can be easily added to the bottle 92 via the injection head 93.

[0043] The working principle of this pediatric auxiliary suction device and its method will be explained in detail below.

[0044] like Figures 1-8 As shown, in use, the pediatric auxiliary suction device and method extend into the patient's mouth and throat via the suction tube 5 and suction head 6. The air cylinder 74 and piston block enter the patient's throat along with the suction head 6. Under the pressure of the throat wall, the gas in the air cylinder 74 is squeezed into the air bladder 71 through the air delivery tube 72, causing the air bladder 71 to inflate. The inflated air bladder 71 contacts the patient's throat wall, limiting the position of the suction head 6. Thus, the positioning effect of the air bladder 71 prevents the suction head 6 from swinging due to the patient's movements during suctioning, thereby avoiding discomfort. When the suction tube 5 enters the patient's mouth, the support plate 89 is also simultaneously placed in the patient's mouth. At this time, the knob 85 can be rotated, causing the lead screw 83 to rotate forward. The forward rotation of the lead screw 83 causes the threaded seat 84 to move inward. The two sets of threaded seats 84... As the device gradually approaches, the rotation of hinge seat 86, hinge seat 88, and connecting plate 87 causes the upper and lower support plates 89 to gradually move away. This allows the upper and lower support plates 89 to support and fix the patient's upper and lower jaws, thus securing the patient's mouth and preventing the child from biting the suction tube 5 during suctioning, which would affect sputum removal. During suctioning, the negative pressure pump 2 is activated, using the negative pressure tube 3 to generate negative pressure suction on the suction head 6 and suction tube 6. This absorbs the sputum from the patient's throat and draws it into the storage tank 11. The suction tube 5 and suction head 6 can then be removed from the patient's mouth, completing the sputum absorption process for the child patient. By opening valve 95, the disinfectant in bottle 92 flows through flow tube 94 into the storage tank 11, allowing the disinfectant to come into contact with and mix with the sputum, thus preventing environmental contamination.

[0045] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A pediatric assisted suction device and method, comprising a handle (1), wherein a negative pressure pump (2) is fixedly mounted on the upper end of the handle (1), characterized in that: The negative pressure pump (2) is fixedly provided with a negative pressure pipe (3) at the left end. The negative pressure pipe (3) is fixedly connected with a connecting pipe (4) at the top end. The connecting pipe (4) is fixedly connected with a suction tube (5) at the left end. The suction tube (5) is fixedly provided with a suction head (6) at the top end. The suction head (6) is provided with a limiting mechanism (7). The suction tube (5) is provided with a support mechanism (8). The connecting pipe (4) is provided with a dilution mechanism (9). Both ends of the connecting pipe (4) are fixedly connected with side frames (10). The lower end of the connecting pipe (4) is movably installed with a liquid storage tank (11). The outer wall of the top end of the liquid storage tube is provided with a threaded section one (12). The inner wall of the lower end of the connecting pipe (4) is provided with a threaded section two (13). The limiting mechanism (7) includes multiple sets of airbags (71). The lower side of the multiple sets of airbags (71) is fixedly connected to the outer wall of the top end of the suction tube (5) at equal distances. An air guide tube (72) is fixedly provided on the left side of the airbag (71). Multiple sets of grooves (73) are opened at equal distances inside the suction head (6). An air cylinder (74) is fixedly provided inside the groove (73). A piston block (75) is movably provided inside the air cylinder (74).

2. The pediatric auxiliary suction device and method according to claim 1, characterized in that: The top of the air cylinder (74) extends through the interior of the groove (73). The top of the air cylinder (74) is placed outside the suction head (6). The top of the air guide tube (72) can pass through the suction head (6) and be fixedly connected to one side of the air cylinder (74). The air cylinder (74) is connected to the air bag (71) through the air guide tube (72).

3. The pediatric auxiliary suction device and method according to claim 1, characterized in that: The limiting mechanism (7) includes a collar (81), the inside of which is fixedly installed to the outside of the suction tube (5). Mounting seats (82) are fixedly provided on both sides of the collar (81). A screw rod (83) is fitted and rotated on one side of the mounting seat (82). A threaded seat (84) is threadedly connected to the outside of the screw rod (83). A knob (85) is fixedly connected to the top of the screw rod (83). A first hinge seat (86) is fixedly connected to both the upper and lower sides of the threaded seat (84). A connecting plate (87) is rotatably connected to the inner side of the first hinge seat (86). A second hinge seat (88) is rotatably installed on the top of the connecting plate (87). A support plate (89) is fixedly provided on the upper side of the second hinge seat (88). A silicone pad (810) is fixedly glued to the upper side of the support plate (89).

4. The pediatric auxiliary suction device and method according to claim 3, characterized in that: The support plate (89) is set in a semi-arc shape, and both sets of the support plates (89) are symmetrically provided with the upper and lower ends of the suction tube (5).

5. The pediatric auxiliary suction device and method according to claim 1, characterized in that: The dilution mechanism (9) includes a fixed frame (91), the lower side of the fixed frame (91) is fixedly installed on both sides of the upper end of the connecting pipe (4), the top of the fixed frame (91) is fixedly connected to a liquid bottle (92), the top of the liquid bottle (92) is fixedly provided with a connected injection head (93), the lower end of the liquid bottle (92) is fixedly provided with a flow pipe (94), and the upper part of the flow pipe (94) is fixedly connected to a valve (95).

6. The pediatric auxiliary suction device and method according to claim 5, characterized in that: A sealing cap is movably installed on the injection head (93), the lower end of the flow tube (94) is fixedly installed with the upper end of the connecting tube (4), and the liquid bottle (92) is connected to the connecting tube (4) through the flow tube (94).

7. The pediatric auxiliary suction device and method according to claim 1, characterized in that: The connecting pipe (4) is connected to the negative pressure pump (2) through the negative pressure pipe (3), and the bottom end of the side frame (10) is fixedly connected to both ends of the negative pressure pump (2).

8. The pediatric auxiliary suction device and method according to claim 1, characterized in that: The suction head (6) is internally connected to the connecting tube (4) through the suction tube (5), the liquid storage tube is internally connected to the connecting tube (4), and the threaded section one (12) and the threaded section two (13) are threaded together.

9. A pediatric auxiliary suction device and method, used to implement the pediatric auxiliary suction device and method as described in claims 1-8, characterized in that, include: S1. The air pump (74) and piston block enter the patient's throat along with the suction head (6). Under the pressure of the inner wall of the throat, the gas in the air pump (74) will be squeezed into the air bag (71) through the air tube (72), causing the air bag (71) to inflate. The inflated air bag (71) contacts the inner wall of the patient's throat, which can limit the suction head (6). In this way, under the positioning effect of the air bag (71), the suction head (6) can be prevented from swinging due to the patient's movement during suctioning, thereby avoiding discomfort to the patient during suctioning. S2. When the screw (83) rotates forward, it drives the threaded seat (84) installed by the thread to move inward. When the two sets of threaded seats (84) gradually approach each other, they will drive the upper and lower support plates (89) to gradually move away from each other by the rotation of the hinge seat one (86), hinge seat two (88) and connecting plate (87). Then the upper and lower support plates (89) can support and fix the patient's upper and lower jaws. At this time, the patient's oral cavity can be fixed to prevent the child's mouth from closing and biting the suction tube (5) during the suctioning process, thus affecting the suctioning of sputum. S3. By opening the valve (95), the disinfectant in the liquid bottle (92) can flow into the storage tank (11) through the flow tube (94), so that the disinfectant comes into contact with the sputum and mixes and dilutes it, thereby avoiding environmental pollution. S4. When suctioning sputum, the negative pressure pump (2) can be turned on, so that the negative pressure pump (2) can use the negative pressure tube (3) to generate negative pressure suction on the suction head (6) and the suction head (6), thereby absorbing the sputum in the patient's throat and sucking the sputum into the reservoir (11), thus completing the sputum absorption work for children. S5. The liquid storage tank (11) is connected to the lower end of the connecting pipe (4) by the threaded section one (12) and the threaded section two (13), which facilitates disassembly and makes it convenient to process the diluted sputum.

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