Sputum suction device for department of pediatrics

Abstract

The invention belongs to the technical field of sputum suction equipment, and discloses a pediatric sputum suction device which comprises a sputum suction assembly, a base frame, a mounting shell and a head supporting piece, the sputum suction assembly is connected with a sputum suction pipe, the head supporting piece is connected with a connecting shaft and a pair of fixing plates provided with air bags, and an inflator communicated with the air bags is arranged in the mounting shell; a first motor is arranged in the mounting shell, and the first motor drives the head supporting piece to rotate and drives the inflator to inflate the air bag through the transmission assembly; the transmission assembly comprises a driven gear, the installation shell is connected with a rotating shaft, the rotating shaft is connected with a driving gear meshed with the driven gear and an eccentric cam, and the eccentric cam abuts against an inflating rod of the inflator in a sliding mode. The driving assembly drives the head to lean backwards, meanwhile, the fixing plate and the air bag are used for fixing the head, it is avoided that the sputum suction tube is bent due to head swinging, the air bag makes contact with the face and the head, discomfort and pain of children are relieved, and the operation difficulty and risk of medical workers are reduced.

Description

Technical Field

[0001] This invention relates to the field of suction equipment technology, specifically a suction device for pediatric use. Background Technology

[0002] In pediatric clinical nursing and treatment, airway obstruction is a common risk threatening children's lives and health, especially for children with respiratory infections, airway obstruction, and other diseases. Timely and effective removal of sputum and secretions from the airway is crucial for maintaining airway patency and reducing the risk of breathing difficulties and suffocation. Suctioning devices use negative pressure to remove sputum from the airway, which not only directly improves the child's ventilation and increases oxygenation to alleviate hypoxia symptoms, but also simultaneously removes pathogens and foreign objects attached to the airway, creating favorable conditions for recovery.

[0003] Currently, pediatric suction devices used in clinical practice are mainly divided into two types: manual and electric. Among them, electric suction devices are powered by an electric pump and have adjustable suction strength, which can quickly clear respiratory secretions. They are especially suitable for children with respiratory diseases who require frequent suctioning or for children who are hospitalized for a long time, and their ease of operation is significantly improved. Although existing suction devices have achieved basic sputum removal functions, they generally lack a fixed structure. Children's violent resistance, avoidance, and other uncooperative behaviors may cause the suction tube to twist or bend, and the pressure inside the tube will change instantly, disrupting the original pressure balance. This makes it easy for sputum to flow back into the respiratory tract along the pressure difference, increasing the risk of reflux. Secondly, some existing suction devices do not consider the comfort of children. When the suction tube is inserted into the mouth or nose, it can easily cause discomfort, pain, and fear in children. Summary of the Invention

[0004] This invention aims to provide a pediatric suction device. A motor drives a fixed plate to rotate via a transmission assembly, simultaneously inflating an air pump into an air bladder. This tilts the child's head back while the fixed plate and air bladder stabilize the child's head, preventing head movement that could cause the suction tube to bend. Furthermore, the air bladder contacts the child's face and head, reducing discomfort and pain, facilitating suctioning for medical staff, and lowering the difficulty and risk of the procedure. This invention solves the technical problems described in the background section.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A pediatric suction device includes a suction assembly connected to a suction tube, a base frame, a mounting shell, and a head support. The mounting shell is fixedly connected to the base frame. The head support is fixedly connected to a connecting shaft, which is rotatably connected to the mounting shell. A pair of opposing fixing plates are connected to the top of the head support. Airbags are connected to opposite sides of each fixing plate. Each airbag has an inlet and an outlet, and the outlet is detachably connected to a sealing plug. An air pump is located inside the mounting shell, and the outlet of the air pump is connected to… An air inlet tube is connected to the air inlet of the airbag; a first motor is provided inside the mounting housing, which drives the head support to rotate through a transmission assembly while simultaneously driving the air pump to inflate the airbag; the transmission assembly includes a driven gear coaxially and fixedly connected to the connecting shaft, a rotating shaft is rotatably connected inside the mounting housing, and a driving gear and an eccentric cam are coaxially and fixedly connected to the rotating shaft, the driving gear meshes with the driven gear, the eccentric cam slides against the air pump rod, and the output shaft of the first motor is connected to the rotating shaft.

[0007] Furthermore, the head support has a through groove inside, and a screw is rotatably connected in the through groove. The two ends of the screw are connected to nuts with opposite directions of rotation by threads. The head support has sliding grooves on both sides that communicate with the through groove. The nuts are connected to sliders that are adapted to the sliding grooves. The sliders are slidably connected in the sliding grooves. The end of the slider away from the nut is connected to the fixing plate. The head support is equipped with a second motor that drives the screw to rotate. When the screw rotates, the two fixing plates move linearly along the axis of the screw in a direction that moves closer to or further away from each other.

[0008] Furthermore, the annular flange of the eccentric cam is provided with a cam groove, and the air pump rod is provided with a sliding member, which is slidably disposed inside the cam groove.

[0009] Furthermore, a connecting plate is connected to one end of the air pump near the eccentric cam, and the sliding member is connected to the connecting plate; the mounting shell is provided with a guide groove, and a guide block adapted to the guide groove is connected to the connecting plate.

[0010] Furthermore, the head support or the mounting shell is connected to a telescopic assembly, and the free end of the telescopic assembly is connected to a display screen.

[0011] Furthermore, the telescopic assembly includes an internally threaded tube, with externally threaded rods of opposite directions connected to both ends of the internally threaded tube via threads; one of the externally threaded rods is connected to the head support or the mounting shell, and the other externally threaded rod is connected to the display screen.

[0012] Furthermore, the base frame is connected to several fasteners for securing the patient's hands and legs.

[0013] Furthermore, the fastener includes a strap and a ring buckle connected to the base frame, and the strap has a hook and loop fastener side and a hook and loop fastener side.

[0014] Furthermore, there are two of each of the connecting shaft, the transmission assembly, and the air pump, and the two connecting shafts, the two transmission assemblies, and the two air pumps are arranged symmetrically in mirror image with the vertical center plane of the head support as the reference plane.

[0015] Furthermore, the first motor is a dual-output shaft motor, and the two output shafts of the first motor are respectively fastened to the rotating shafts on both sides through couplings.

[0016] The principles and beneficial effects of the technical solution are as follows:

[0017] 1. This invention provides a pediatric suction device. The suction tube of the suction assembly is inserted into the patient's nasal cavity for suctioning. The base frame is fixed to a bed board or other platform to facilitate suctioning while the patient is supine. The mounting shell is fixedly connected to the base frame for mounting various components. A head support is fixedly connected to a connecting shaft, which is rotatably connected to the mounting shell to tilt the patient's head back, thus facilitating suctioning by medical staff. A pair of fixing plates are connected to the top of the head support, and airbags are connected to opposite sides of the fixing plates. An air pump is installed inside the mounting shell, and the air outlet of the air pump is connected to the air inlet of the airbag to facilitate inflation. After suctioning, the air in the airbag is released through the air outlet for future use. A first motor is installed inside the mounting shell. The first motor drives the head support to rotate through a transmission assembly while simultaneously driving the air pump to inflate the airbag. That is, the fixing plates provide initial fixation of the patient's head, preventing large-scale head movement when adjusting the head support. This increases the safety of the device and, while adjusting the angle of the head support, also inflates the airbag to further fix the patient's head, preventing head movement that could cause the suction tube to twist or bend. Furthermore, the airbag reduces patient discomfort and lowers the difficulty and risk for medical staff. Specifically, the transmission assembly includes a driven gear coaxially fixed to the connecting shaft, a rotating shaft rotatably connected inside the housing, and a driving gear and an eccentric cam coaxially fixed to the rotating shaft. The driving gear meshes with the driven gear, and the eccentric cam slides against the air pump's pump rod. A first motor drives the rotating shaft to rotate, which in turn drives the connecting shaft to rotate via the driving and driven gears. The connecting shaft then rotates the head support to adjust its angle. Simultaneously, the rotating shaft drives the eccentric cam to rotate, which pushes and pulls the air pump's pump rod, inflating the airbag and fixing the patient's head while adjusting the head support angle, thus reducing the difficulty and risk for medical staff.

[0018] 2. The present invention provides a suction device for pediatric use, wherein a through groove is provided inside the head support, and a screw is rotatably connected in the through groove. Nuts with opposite directions of screwing are threaded to both ends of the screw. The head support has sliding grooves on both sides that communicate with the through groove. The nuts are connected to sliders that are adapted to the sliding grooves. The sliders are slidably connected in the sliding grooves, and the end of the slider away from the nut is connected to a fixed plate. A second motor drives the screw to rotate. Under the action of the thread and the sliding grooves, the two fixed plates move linearly along the axis of the screw in a direction that moves closer to or further away from each other. The distance between the two fixed plates can be adjusted to accommodate patients with different head widths, making it widely applicable.

[0019] 3. The present invention provides a sputum suction device for pediatric use. The annular flange of the eccentric cam has a cam groove, and the air pump rod has a sliding member. The sliding member is slidably disposed inside the cam groove to ensure the linkage between the air pump rod and the eccentric cam. The overall structure is compact and reliable, and the movement process is uniform and stable. In addition, a connecting plate is connected to the end of the air pump rod near the eccentric cam. The sliding member is connected to the connecting plate. The mounting shell has a guide groove, and the connecting plate is connected to a guide block that matches the guide groove. The sliding groove guides and limits the movement of the air pump rod, so that the inflation process of the air pump rod is stable and uniform, the inflation process is smooth, and the overall device is functionally stable.

[0020] 4. The present invention provides a pediatric suction device, wherein a head support or mounting shell is connected to a telescopic component, and a display screen is connected to the free end of the telescopic component. During intubation, videos of interest to the patient can be played on the display screen to distract the patient, reduce the patient's fear, and further reduce the difficulty and risk of operation. The telescopic component can adjust the height of the display screen to accommodate different patients. Specifically, the telescopic component includes an internally threaded tube, and the two ends of the internally threaded tube are connected by threads to externally threaded rods with opposite directions of rotation. Rotating the internally threaded tube can adjust the height of the display screen, which is convenient to operate and can achieve self-locking by using the threads to prevent the display screen from shaking.

[0021] 5. The present invention provides a sputum suction device for pediatric use, wherein a base frame is connected to several fixing components for fixing the patient's hands and legs. Specifically, the fixing components include straps and ring buckles connected to the base frame. The straps are connected to Velcro adhesive surfaces and Velcro hook surfaces. In actual application, the patient's arm or leg is placed between the straps and the ring buckle, the straps are wrapped around the patient's limb and passed through the ring buckle and folded back, and fixed by the Velcro adhesive surfaces and Velcro hook surfaces. The operation is convenient and the fastening force is strong.

[0022] 6. The present invention provides a sputum suction device for pediatric use, which has two connecting shafts, two transmission components and two air pumps. The two connecting shafts, two transmission components and two air pumps are mirror-symmetrically arranged with the vertical center plane of the head support as the reference plane, so that the left and right sides of the device are symmetrical and the movement of them moving closer or further away from each other is also symmetrical, which makes the device have good mechanical performance. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of a sputum suction device for pediatric use according to the present invention;

[0024] Figure 2 This is a front view of a sputum suction device for pediatric use according to the present invention;

[0025] Figure 3 for Figure 2 A partial sectional view of AA;

[0026] Figure 4 This is a side view of a sputum suction device for pediatric use according to the present invention;

[0027] Figure 5 for Figure 4 A partial sectional view of BB;

[0028] Figure 6 for Figure 4 A partial sectional view of CC.

[0029] The names of the corresponding labels in the attached diagram are:

[0030] 1. Base frame; 2. Mounting shell; 3. Head support component; 4. Through groove; 5. Slide groove; 6. Screw; 7. Nut; 8. Slider; 9. Fixing plate; 10. Airbag; 11. Second motor; 12. Connecting shaft; 13. Driven gear; 14. Rotating shaft; 15. Driving gear; 16. Eccentric cam; 17. Cam groove; 18. Air pump; 19. Air pump rod; 20. Connecting plate; 21. Sliding component; 22. Guide groove; 23. Guide block; 24. First motor; 25. Trachea; 26. External threaded rod; 27. Internal threaded tube; 28. Display screen; 29. ​​Strap; 30. Ring buckle; 31. Suction assembly; 32. Suction tube. Detailed Implementation

[0031] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments:

[0032] like Figures 1 to 6 As shown, a pediatric suction device includes a suction assembly 31 connected to a suction tube 32; it also includes a base frame 1, a mounting shell 2, and a head support 3, with the mounting shell 2 fixedly connected to the base frame 1; connecting shafts 12 are fixedly connected to the left and right sides of the head support 3, and the connecting shafts 12 are rotatably connected to the mounting shell 2; a pair of opposing fixing plates 9 are connected to the top of the head support 3, and airbags 10 are connected to opposite sides of each fixing plate 9, with airbags 10 having an air inlet and an air outlet, and the air outlet being detachably connected to a sealing plug;

[0033] An air pump 18 is installed inside the mounting housing 2. The air outlet of the air pump 18 is connected to the air inlet of the airbag 10 through an air pipe 25. A first motor 24 is installed inside the mounting housing 2. The first motor 24 drives the head support 3 to rotate through the transmission assembly, and at the same time drives the air pump 18 to inflate the airbag 10. Specifically, there are two connecting shafts 12, two transmission assemblies, and two air pumps 18. The two connecting shafts 12, two transmission assemblies, and two air pumps 18 are arranged symmetrically in mirror image with the vertical center plane of the head support 3 as the reference plane. In this embodiment, the transmission assembly includes a driven gear 13 that is coaxially fixedly connected to the connecting shaft 12. A rotating shaft 14 is rotatably connected inside the mounting housing 2. The rotating shaft 14 is coaxial. A drive gear 15 and an eccentric cam 16 are fixedly connected. The drive gear 15 meshes with the driven gear 13, and the eccentric cam 16 slides against the air pump rod 19 of the air pump 18. Specifically, the annular flange of the eccentric cam 16 has a cam groove 17. The end of the air pump rod 19 near the eccentric cam 16 is connected to a connecting plate 20. The connecting plate 20 is connected to a sliding member 21, which slides inside the cam groove 17. The mounting housing 2 has a guide groove 22, and the connecting plate 20 is connected to a guide block 23 that matches the guide groove 22. In addition, the first motor 24 is a dual-output shaft motor. The two output shafts of the first motor 24 are respectively fastened to the rotating shafts 14 on both sides through couplings.

[0034] The head support 3 has a through groove 4 inside, and a screw 6 is rotatably connected in the through groove 4. The two ends of the screw 6 are connected to nuts 7 with opposite directions of screwing by threads. The head support 3 has sliding grooves 5 on both sides that communicate with the through groove 4. The nuts 7 are connected to sliders 8 that are adapted to the sliding grooves 5. The sliders 8 are slidably connected in the sliding grooves 5. The end of the slider 8 away from the nuts 7 is connected to the fixing plate 9. The head support 3 is equipped with a second motor 11 that drives the screw 6 to rotate. When the screw 6 rotates, the two fixing plates 9 move linearly along the axis of the screw 6 in a direction that moves closer to or further away from each other.

[0035] The head support 3 or the mounting shell 2 is connected to a telescopic assembly, and the free end of the telescopic assembly is connected to a display screen 28. In this embodiment, the telescopic assembly includes an internally threaded tube 27, and the two ends of the internally threaded tube 27 are connected by threads to externally threaded rods 26 with opposite directions of rotation. One externally threaded rod 26 is connected to the head support 3 or the mounting shell 2, and the other externally threaded rod 26 is connected to the display screen 28.

[0036] In addition, the base frame 1 is connected to several fasteners for fixing the patient's hands and legs; in this embodiment, the fasteners include straps 29 and ring buckles 30 connected to the base frame 1, and the straps 29 are connected to a Velcro adhesive side and a Velcro hook side.

[0037] The specific implementation process is as follows:

[0038] When using this suction device, secure the base frame 1 to the bed board or other platform, rotate the internal thread tube 27 to adjust the height of the display screen 28, and use the display screen 28 to play videos or cartoons that children are interested in; the patient lies supine with their head placed on the head support 3, and the patient's arms and legs are placed between the straps 29 and the ring buckles 30. The straps 29 are wrapped around the patient's limbs and passed through the ring buckles 30 and folded back, and fixed with the Velcro adhesive and hook sides; adjust the distance between the two fixing plates 9 according to the width of the patient's head. Specifically, start the second motor 11, and the two fixing plates 9 move linearly along the axis of the screw 6 in a direction that is closer to or further away from each other; start the first motor 24, and the rotating shaft 14 drives the connecting shaft 12 to rotate through the driving gear 15 and the driven gear 13 to adjust the angle of the head support 3. At the same time, the rotating shaft 14 also drives the air pump 18 to inflate the air bag 10 through the eccentric cam 16 to clamp the patient's head; after suctioning, remove the sealing plug and release the gas inside the air bag 10 for the next use.

[0039] During intubation, the display screen 28 plays videos of interest to the patient, distracting them, reducing their fear, and lowering the difficulty and risk of the procedure. The telescopic component allows for height adjustment of the display screen 28 to accommodate different patients. Specifically, rotating the internal threaded tube 27 adjusts the height of the display screen 28, making it easy to operate. The threaded design also provides self-locking, preventing the display screen 28 from shaking. The fixing components connected to the base frame 1 secure the patient's hands and legs, preventing limb movement from interfering with the intubation procedure and reducing the difficulty and risk of the procedure. The second motor 11 drives the screw 6 to rotate. Under the action of the thread and the sliding groove 5, the two fixing plates 9 move linearly along the axis of the screw 6, moving closer or further apart. This allows for adjustment of the distance between the two fixing plates 9 to accommodate patients with different head widths, making it widely applicable.

[0040] The head support 3 is rotatably connected to the mounting shell 2 via the connecting shaft 12, so as to tilt the patient's head backward, thereby facilitating the suctioning operation for medical staff. The first motor 24 drives the head support 3 to rotate through the transmission component, while driving the air pump 18 to inflate the air bag 10. That is, the fixing plate 9 is used to initially fix the patient's head, avoiding large swings of the patient's head when adjusting the head support plate, increasing the safety of the device. In addition, while adjusting the angle of the head support 3, air can also be inflated into the air bag 10, using the air bag 10 to further fix the patient's head, preventing the suction tube 32 from twisting or bending due to the shaking of the patient's head. Furthermore, the setting of the air bag 10 can also reduce patient discomfort and reduce the difficulty and risk of operation for medical staff.

[0041] The eccentric cam 16 has a cam groove 17 on its annular flange. The air pump 18's air rod 19 has a sliding member 21, which slides inside the cam groove 17 to ensure the linkage between the air pump 19 and the eccentric cam 16. The overall structure is compact and reliable, and the movement is uniform and stable. In addition, the air pump 19 is connected to a connecting plate 20, and the mounting shell 2 has a guide groove 22. The connecting plate 20 is connected to a guide block 23 that matches the guide groove 22. The sliding groove 5 guides and limits the movement of the air pump 19, making the inflation process of the air pump 19 stable, uniform, and smooth, and ensuring the overall functionality of the device is stable. The two connecting shafts 12, the two transmission components, and the two air pumps 18 are mirror-symmetrically arranged with the vertical center plane of the head support 3 as the reference plane, making the left and right sides of the device symmetrical. Their movement towards or away from each other is also symmetrical, resulting in good mechanical performance of the device.

[0042] The above descriptions are merely embodiments of the present invention, and common knowledge regarding specific technical solutions or characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solutions of the present invention, and these should also be considered within the scope of protection of the present invention. These modifications and improvements will not affect the effectiveness of the implementation of the present invention or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A sputum suction device for pediatrics, comprising a sputum suction assembly, a sputum suction tube is connected to the sputum suction assembly; characterized in that, The base frame, the mounting shell and the head support are fixedly connected; the head support is fixedly connected with a connecting shaft, the connecting shaft is rotationally connected with the mounting shell; the head support is connected with a pair of fixed plates arranged oppositely at the top, the opposite sides of the fixed plates are connected with air bags, the air bags are provided with air inlets and air outlets, the air outlets are detachably connected with sealing plugs; the mounting shell is provided with a pump, the air outlet end of the pump is connected with the air inlet of the air bag through an air pipe; the mounting shell is provided with a first motor, the first motor drives the head support to rotate through a transmission assembly, and drives the pump to inflate the air bag; the transmission assembly comprises a driven gear coaxially fixedly connected with the connecting shaft, the mounting shell is rotationally connected with a rotating shaft, the rotating shaft is coaxially fixedly connected with a driving gear and an eccentric cam, the driving gear is engaged with the driven gear, the eccentric cam is slidably connected with the pump rod, and the output shaft of the first motor is connected with the rotating shaft.

2. A sputum suction device for pediatric use according to claim 1, characterized in that, The head support is internally provided with a through groove, the through groove is rotationally connected with a screw rod, the screw rod is threadedly connected with nuts with opposite rotation directions at both ends, the head support is provided with sliding grooves in communication with the through groove at both sides, the nuts are connected with sliding blocks matched with the sliding grooves, the sliding blocks are slidably connected in the sliding grooves, and the ends of the sliding blocks away from the nuts are connected with the fixed plates; the head support is provided with a second motor for driving the screw rod to rotate; the screw rod rotates, and the two fixed plates move linearly along the axis of the screw rod towards each other or away from each other.

3. A sputum suction device for pediatric use according to claim 1, characterized in that, The annular flange of the eccentric cam is provided with a cam groove, the pump rod of the pump is provided with a sliding piece, and the sliding piece is slidably arranged on the inner side of the cam groove.

4. A sputum suction device for pediatric use according to claim 3, characterized in that, The end of the pump rod close to the eccentric cam is connected with a connecting plate, and the sliding piece is connected with the connecting plate; the mounting shell is provided with a guide groove, and the connecting plate is connected with a guide block matched with the guide groove.

5. The sputum suction device for pediatric use according to claim 1, characterized in that, The head support or the mounting shell is connected with a telescopic assembly, and the free end of the telescopic assembly is connected with a display screen.

6. A sputum suction device for pediatric use according to claim 5, characterized in that, The telescopic assembly comprises an internally threaded pipe, and the internally threaded pipe is threadedly connected with externally threaded rods with opposite rotation directions at both ends; one of the externally threaded rods is connected with the head support or the mounting shell, and the other externally threaded rod is connected with the display screen.

7. The sputum suction device for pediatric use according to claim 1, characterized in that, The base frame is connected with a plurality of fixing members for fixing the hands and legs of a patient.

8. A sputum suction device for pediatric use according to claim 7, characterized in that, The fixing member comprises a bandage and a ring-shaped buckle connected with the base frame, and the bandage is connected with a Velcro sticky surface and a Velcro hook surface.

9. The sputum suction device for pediatric use according to claim 1, characterized in that, The connecting shaft, the transmission assembly and the pump each have two pieces, and the two connecting shafts, the two transmission assemblies and the two pumps are mirror-symmetrically arranged based on the vertical central plane of the head support as a reference plane.

10. A sputum suction device for pediatric use according to claim 9, characterized in that, The first motor is a double-output-shaft motor, and the two output shafts of the first motor are respectively fastened to the two rotating shafts through couplings.

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