Pediatric sputum excretion device

Abstract

The invention relates to the technical field of medical equipment, in particular to a pediatric sputum excretion device.The pediatric sputum excretion device comprises a base, the base is connected with a bandage, and the bandage is used for installing the base on the back of a patient; the tapping mechanism comprises a sliding rail, a tapping head and a driving assembly, the sliding rail is rotationally installed on the base, the tapping head is installed in the sliding rail in a sliding mode, the driving assembly is installed in the base and used for driving the sliding rail to rotate, and the tapping head slides along the sliding rail and conducts multidirectional tapping on the back of the patient; the device is worn on the body of a patient, rotation of the sliding rail is combined with linear sliding of the tapping head, sputum moves from the peripheral bronchus to the central airway, the patient is tapped in all directions, medical staff do not need to hold the tapping head by hand for a long time, and the labor intensity of the medical staff is reduced.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to a pediatric sputum drainage device. Background Technology

[0002] In pediatric clinical treatment, many patients produce large amounts of sputum due to respiratory diseases such as pneumonia and bronchitis. Because children have weaker coughing abilities, sputum easily accumulates in the respiratory tract, affecting respiratory function and even leading to more serious complications. To address this, clinical medicine generally uses chest physiotherapy, including manual back percussion for sputum clearance and external vibration therapy. External vibration therapy involves medical staff placing the percussion head of a vibration sputum clearance machine against the patient's back and moving it up and down, mimicking the patting motion of a hand during manual sputum clearance. This causes vibration in the lungs, which is transmitted to the airway, causing airway secretions to vibrate and increasing their flow. The flowing secretions stimulate the airway mucosa, inducing coughing, thereby clearing airway secretions and improving the patient's respiratory capacity.

[0003] Most sputum expectoration machines on the market are handheld devices that require medical staff to continuously hold and vibrate the tapping head, precisely positioning it to the specific area needed by the patient. Through continuous physical vibration stimulation, they help patients effectively cough up sputum accumulated in the respiratory tract. However, these handheld sputum expectoration machines have many inconveniences in actual use. Medical staff operate them for long periods of time, which is not only labor-intensive, but also makes it difficult to ensure the stability and consistency of the tapping force and frequency, thus affecting the sputum expectoration effect. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the present invention proposes a pediatric sputum drainage device to solve the technical problems mentioned in the background art.

[0005] The technical solution adopted in this invention is a pediatric sputum drainage device, comprising: A base, wherein the base is connected to a strap for attaching the base to the patient's back; The percussion mechanism includes a slide rail, a percussion head, and a drive assembly. The slide rail is rotatably mounted on a base, the percussion head is slidably mounted within the slide rail, and the drive assembly is mounted within the base to drive the slide rail to rotate. The percussion head slides along the slide rail to perform multi-directional percussion on the patient's back.

[0006] In a preferred embodiment, a circular shell is rotatably mounted on the upper end of the base, and the slide rail is connected to the side wall of the circular shell.

[0007] In a preferred embodiment, the drive assembly includes a drive shaft rotatably mounted in the middle of the base, a power component for driving the drive shaft to rotate is provided at the bottom of the base, a first gear is rotatably mounted in the middle of the base, a gear ring that is rotatably connected to the first gear is rotatably mounted on the side wall of the circular shell, and the drive shaft is rotatably connected to the first gear.

[0008] In a preferred embodiment, a take-up reel is horizontally rotatably mounted inside the circular shell. The take-up reel is located above the first gear, and a pull wire is wound around the take-up reel. The end of the pull wire is connected to the striking head, and the take-up reel is drively connected to the drive shaft.

[0009] In a preferred embodiment, a power output component is slidably mounted on the drive shaft, and a sliding member is provided between the base and the circular shell for driving the power output component to slide up and down. When the power output component slides down, it is connected to the first gear, and when the power output component slides up, it is connected to the winding wheel.

[0010] In a preferred embodiment, a first elastic element is provided between the side of the striking head near the base and the sidewall of the slide rail.

[0011] In a preferred embodiment, the power output component includes a sliding sleeve, with connecting members fixed at both the upper and lower ends of the sliding sleeve, and both the first gear and the winding wheel are provided with connected members corresponding to the connecting members.

[0012] In a preferred embodiment, the sliding member includes an annular groove formed in the side wall of the base, an annular plate is slidably mounted in the annular groove, the annular plate is connected to the power output member through a connecting rod, a second elastic member is provided between the upper side of the annular plate and the side wall of the annular groove, and a plurality of circumferentially distributed first magnetic blocks are provided on the upper side of the annular plate. The bottom wall of the circular shell is provided with a horizontally arranged sliding groove, in which a second magnetic block is horizontally slidably installed. The upper wall of the base is provided with an annular limiting groove, in which the second magnetic block extends into the annular limiting groove. The side wall of the annular limiting groove is provided with a V-shaped groove corresponding to the position of the first magnetic block. The second magnetic block is connected to a top rod at the end away from the base, and the striking head is fixed with a push rod that matches the top rod.

[0013] As can be seen from the above technical solution, the beneficial technical effects of the present invention are as follows: 1. This invention involves wearing the device on the patient and using the combination of the rotation of the slide rail and the linear sliding of the percussion head to move sputum from the peripheral bronchi to the central airway, providing all-round percussion to the patient. This eliminates the need for medical staff to hold the percussion head for extended periods, reducing the workload of medical staff.

[0014] 2. The drive shaft of this invention automatically switches the power transmission path through the power output component, realizing the orderly switching between slide rail rotation and snap head sliding. Only one power component can drive multiple components to work together, with a compact structure and ingenious design.

[0015] 3. This invention uses the adsorption and detachment mechanism of six first and second magnetic blocks to ensure that the percussion head stays at the position corresponding to the patient's lower, middle, and upper bronchial lobes, thus achieving targeted percussion. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0017] Figure 1 This is a schematic diagram of the structure of the device according to Embodiment 1 of the present invention; Figure 2 This is a cross-sectional structural diagram of the device according to Embodiment 1 of the present invention; Figure 3 for Figure 2 Enlarged structural diagram at point A; Figure 4 for Figure 2 Enlarged structural diagram at point B; Figure 5 This is the internal structure of the base in Embodiment 1 of the present invention; Figure 6 This is a schematic diagram showing the stopping states of the slide rail at various positions according to the present invention; Figure 7 The diagram shows the cross-sectional structure of the devices in Embodiments 2 and 3 of the present invention. Figure 1 ; Figure 8 The diagram shows the cross-sectional structure of the devices in Embodiments 2 and 3 of the present invention. Figure 2 ; Figure 9 for Figure 8 Enlarged schematic diagram of the structure at point C.

[0018] Figure label: Base 1, strap 11, slide rail 2, striking head 21, push rod 211, circular shell 23, drive shaft 24, first gear 25, gear ring 251, power output component 26, sliding sleeve 261, connecting component 262, connected component 263, winding wheel 3, pull wire 31, first elastic component 32, annular groove 4, annular plate 41, connecting rod 42, second elastic component 43, first magnet 44, slide groove 45, second magnet 46, top rod 461, annular limiting groove 47, V-shaped groove 48; 5. Housing 51, slider 52, sprocket 53; Fixed shell 6, rack 62, third elastic element 63, abutment rod 64, cam 65, hollow groove 66, screw 67, sleeve 7, connecting block 71, hinge rod 72, connecting groove 73, strip groove 74, knob 75. Detailed Implementation

[0019] The embodiments of the technical solution of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the technical solution of the present invention and are therefore intended to limit the scope of protection of the present invention.

[0020] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application should have the ordinary meaning as understood by one of ordinary skill in the art to which this invention pertains.

[0021] Example 1: like Figure 1-6 As shown, this embodiment provides a pediatric sputum expectoration device, including a base 1, a percussion mechanism, etc., with the specific structure as follows: Base 1: Base 1 serves as the basic support component of the entire device, and straps 11 are connected to it.

[0022] The strap 11 is used to securely install the base 1 on the patient's back, ensuring that the device will not easily shift during use and guaranteeing the stability and effectiveness of the sputum clearance operation.

[0023] In other embodiments, the straps 11 may be provided with Velcro fasteners for interlocking, thereby enabling connection.

[0024] Knocking mechanism: Slide rail 2: Slide rail 2 is rotatably mounted on base 1. A circular shell 23 is rotatably mounted on the upper end of base 1. Slide rail 2 is connected to the side wall of circular shell 23. This design allows slide rail 2 to rotate along base 1, thereby changing the movement trajectory of percussion head 21 and realizing percussion on different positions of the patient's back.

[0025] Tapping head 21: The tapping head 21 is slidably installed in the slide rail 2. A first elastic element 32 is provided between the side of the tapping head 21 near the base 1 and the side wall of the slide rail 2. The first elastic element 32 provides a reset elastic force for the tapping head 21, so that the tapping head 21 can quickly return to the initial position after completing a tapping action, and prepare for the next tapping.

[0026] The tapping head 21 slides along the slide rail 2, allowing it to move from the outside in, thus guiding the liquefied sputum toward the airways.

[0027] The percussion head 21 connects to existing vibration expectoration machines and can apply high-frequency vibration (typically 15-30Hz, adjustable range 10-60Hz) vertically to the back, simulating the vertical force of manual back percussion. This vibration can penetrate the skin, muscles and body fluids, and act directly on the respiratory mucosa, relaxing and liquefying mucus and metabolites, and reducing sputum viscosity.

[0028] Drive component: The drive component is installed in the base 1 and is used to drive the slide rail 2 to rotate and the tapping head 21 to slide along the slide rail 2, so as to achieve multi-directional tapping of the patient's back.

[0029] The specific structure is as follows: Drive shaft 24: Drive shaft 24 is rotatably mounted in the middle of base 1, and a power component for driving drive shaft 24 to rotate is provided at the bottom of base 1.

[0030] In other embodiments, the power component is a servo motor, which is horizontally disposed at the bottom of the base 1. The servo motor can transmit power to the drive shaft 24 through the bevel teeth, thereby driving the drive shaft 24 to rotate continuously.

[0031] First gear 25: The first gear 25 is rotatably mounted in the middle of the base 1. The drive shaft 24 is connected to the first gear 25 for transmission. The rotation of the drive shaft 24 drives the first gear 25 to rotate.

[0032] Gear ring 251: A gear ring 251 that is rotatably mounted on the side wall of the circular shell 23 and is connected to the first gear 25 for transmission. When the first gear 25 rotates, it can drive the gear ring 251 to rotate, thereby causing the circular shell 23 to rotate and realizing the rotation of the slide rail 2. The first gear 25 and the gear ring 251 are connected by a transmission wheel meshing.

[0033] Take-up reel 3: A take-up reel 3 is horizontally rotatably installed inside the circular shell 23. The take-up reel 3 is located above the first gear 25. The take-up reel 3 is wound with a pull wire 31. The end of the pull wire 31 is connected to the striking head 21. The take-up reel 3 is connected to the drive shaft 24 for transmission. When the drive shaft 24 drives the winding wheel 3 to rotate, it can wind up the wire 31, thereby causing the striking head 21 to slide along the slide rail 2.

[0034] Power output component 26: A power output component 26 is slidably mounted on the drive shaft 24. The power output component 26 includes a sliding sleeve 261, which is slidably mounted on the outside of the drive shaft 24. When the drive shaft 24 rotates, it can drive the sliding sleeve 261 to rotate (see reference). Figure 3 As shown, a fixed slider is installed on the outside of the drive shaft 24, and a longitudinally arranged strip groove is provided on the inside of the sliding sleeve 261. By sliding the fixed slider in the strip groove, the drive shaft 24 can rotate synchronously to drive the sliding sleeve 261 to rotate, and the sliding sleeve 261 can slide up and down relative to the drive shaft 24. Connecting parts 262 are fixed at both the upper and lower ends of the sliding sleeve 261. The first gear 25 and the winding wheel 3 are both provided with connected parts 263 corresponding to the connecting parts 262.

[0035] A sliding member is provided between the base 1 and the circular shell 23 to drive the power output member 26 to slide up and down. When the power output member 26 slides down, the connecting member 262 is connected to the connected member 263 of the first gear 25, and the power is transmitted to the first gear 25. When the power output member 26 slides up, the connecting member 262 is connected to the connected member 263 of the winding wheel 3, and the power is transmitted to the winding wheel 3.

[0036] Sliding component: The sliding component includes an annular groove 4 formed in the side wall of the base 1. An annular plate 41 is slidably mounted in the annular groove 4. The annular plate 41 is connected to the power output component 26 (i.e., connected to the sliding sleeve 261) via a connecting rod 42. A second elastic element 43 is provided between the upper side of the annular plate 41 and the side wall of the annular groove 4 to provide a downward elastic force to the annular plate 41. Several circumferentially distributed first magnetic blocks 44 are provided on the upper side of the annular plate 41. The bottom wall of the circular shell 23 is provided with a horizontally arranged sliding groove 45, and a second magnetic block 46 is horizontally slidably installed in the sliding groove 45. The upper wall of the base 1 is provided with an annular limiting groove 47, and the second magnetic block 46 extends into the annular groove 47 through the annular limiting groove 47. The side wall of the annular limiting groove 47 is provided with a V-shaped groove 48 corresponding to the position of the first magnetic block 44, which is used to guide the movement of the second magnetic block 46.

[0037] The second magnetic block 46 is connected to a push rod 461 at the end away from the base 1, and the striking head 21 is fixed with a push rod 211 that matches the push rod 461.

[0038] The power output component 26 is initially connected to the first gear 25. When the power component drives the drive shaft 24 to rotate, the drive shaft 24 transmits power to the first gear 25 through the power output component 26. The first gear 25 drives the gear ring 251 to rotate, which in turn causes the circular shell 23 to rotate. The slide rail 2 also rotates, changing the position of the striking head 21.

[0039] When the circular shell 23 rotates, the second magnetic block 45 moves along the annular limiting groove 47. When the second magnetic block 45 is aligned with the first magnetic block 44, the first magnetic block 44 moves upward under the action of magnetic force and attracts the second magnetic block 45. Through the annular plate 41 and the connecting rod 42, the power output component 26 moves upward, so that the power output component 26 is connected to the winding wheel 3 and disengaged from the first gear 25.

[0040] At this time, the drive shaft 24 will drive the take-up wheel 3 to rotate, the take-up wheel 3 will take up the pull wire 31, and drive the striking head 21 to move towards the base 1 until the push rod 211 pushes the top rod 461, which will drive the second magnetic block 46 to slide towards the base 1 in the slide groove 45. At this time, the second magnetic block 46 and the first magnetic block 44 will be misaligned and disengaged. The second magnetic block 46 will then enter the V-shaped groove 48. The second elastic element 43 will push the annular plate 41 to move downward, and drive the power output element 26 to move downward through the connecting rod 42, connect with the first gear 25, and disengage from the take-up wheel 3.

[0041] Then the circular shell 23 continues to rotate. At this time, the elastic force of the first elastic element 32 pushes the striking head 21 to move away from the base 1, so that the striking head 21 is reset. The second magnetic block 46 re-enters the annular limiting groove 47 through the guide of the V-shaped groove 48.

[0042] When the circular shell 23 rotates to the next first magnetic block 44, the second magnetic block 46 can attract the first magnetic block 44 and continue to repeat the above movement.

[0043] Therefore, during the continuous rotation of the drive shaft 24, the circular shell 23 can be driven to rotate to the position of the first magnetic block 44 and then stop, and the striking head 21 can be driven to move along the slide rail 2 towards the base 1. Then the circular shell 23 continues to rotate to the position of the next first magnetic block 44, and the striking head 21 moves along the slide rail 2 again.

[0044] There are 6 first magnetic blocks 44, which are arranged symmetrically on the left and right. The positions of the first magnetic blocks 44 correspond to the positions of the lower lobe bronchus, the middle lobe bronchus and the upper lobe bronchus, respectively. In this way, the stopping positions of the slide rail 2 and the tapping head 21 can correspond to the positions of each lobe bronchus, so as to achieve precise tapping.

[0045] Since the positions of the first magnetic block 44 correspond to the positions of the lower lobe bronchus, the middle lobe bronchus, and the upper lobe bronchus, respectively, and the stopping positions of the slide rail 2 and the percussion head 21 correspond to the positions of each lobe bronchus, the percussion head 21 can guide the liquefied sputum to move towards the large airway as it moves from the outside to the inside along each lobe bronchus. At the same time, the percussion head 21 acts vertically on the back with high-frequency vibration, further promoting the discharge of sputum.

[0046] In other embodiments, a rotating ring is rotatably mounted on the outer side of the sliding sleeve 261, and the connecting rod 42 is connected to the rotating ring. In this way, when the drive shaft 24 drives the sliding sleeve 261 to rotate, the connecting rod 42 and the rotating ring will not rotate. However, when the connecting rod 42 moves up and down, it can drive the sliding sleeve 261 to move up and down through the rotating ring.

[0047] refer to Figure 3 As shown, in other embodiments, the connector 262 is a toothed ring, and the connected component 263 is a toothed groove. When the sliding sleeve 261 moves upward or downward, it enters the toothed groove through the toothed ring, which can transmit power to the first gear 25 or the winding wheel 3. The toothed ring and the sliding sleeve 261 are elastically slidably connected, providing an elastic extension force for the toothed ring. If the toothed ring is not aligned during the docking process with the toothed groove, the toothed ring will slide relative to the sliding sleeve 261 first. At the instant the toothed ring aligns with the toothed groove, the elastic restoring force can push the toothed ring into the toothed groove.

[0048] In other embodiments, both the connector 262 and the connected component 263 are friction plates. When the sliding sleeve 261 moves upward or downward, the friction plates abut against each other, which can transmit power to the first gear 25 or the winding wheel 3.

[0049] In other embodiments, both the first elastic element 32 and the second elastic element 43 are springs.

[0050] The working principle of the embodiments is explained in detail below: The base 1 is securely installed on the middle of the patient's back using straps 11, and the positions of the six first magnets 44 are respectively aligned with the patient's lobe bronchus to ensure accurate installation and allow the percussion head 21 to act on the corresponding sputum expectoration sites on the patient's back.

[0051] When the power is turned on and the power unit is started, the drive shaft 24 begins to rotate. The power output unit 26 is initially connected to the first gear 25. The drive shaft 24 drives the first gear 25 to rotate through the power output unit 26. The first gear 25 drives the gear ring 251 to rotate, thereby causing the circular shell 23 and the slide rail 2 to start rotating.

[0052] As the circular shell 23 rotates, the second magnetic block 45 moves along the annular limiting groove 47. When it aligns and attracts the first magnetic block 44, the power output component 26 moves upward and connects with the winding wheel 3. The drive shaft 24 drives the winding wheel 3 to rotate, and the winding cable 31 causes the striking head 21 to move toward the base 1.

[0053] When the push rod 211 pushes the top rod 461 to disengage the second magnetic block 46 from the first magnetic block 44, the power output component 26 moves downward and reconnects with the first gear 25, the circular shell 23 continues to rotate, and the first elastic component 32 pushes the striking head 21 to reset.

[0054] This cycle continues, with the tapping head 21 moving along a trajectory corresponding to the position of each lobe bronchus, while simultaneously applying high-frequency vibrations to the back to achieve the function of expectoration.

[0055] After the sputum clearance procedure is completed, turn off the power supply and remove the base 1 from the patient's back. Clean and disinfect the device for future use.

[0056] Example 2: like Figure 7-8 As shown, as an improvement to Embodiment 1, the slide rail 2 is slidably mounted with a housing 5, and a slider 51 is slidably mounted up and down inside the housing 5. The striking head 21 is connected to the slider 51, and the pull wire 31 is connected to the slider 51. The side wall of the slide rail 2 is provided with an installation groove, and sprockets 52 are unidirectionally mounted at both ends of the installation groove. The two sprockets 52 are connected by an accessory chain 53. The slider 51 is rotatably mounted with a guide rod, and the guide rod is connected to the accessory chain 53. When the tapping head 21 slides along the slide rail 2 toward the base 1, the guide rod moves along the lower side of the accessory chain 53. At this time, the tapping head 21 contacts the patient's back. When the tapping head 21 slides along the slide rail 2 away from the base 1, the guide rod moves along the upper side of the accessory chain 53. Then the slider 51 slides upward relative to the inside of the housing 5 a certain distance, and the tapping head 21 moves away from the patient's back. If the sprocket 52 is installed in the mounting groove in one direction, the sprocket 52 can only rotate in one direction. When the tapping head 21 slides back and forth along the slide rail 2, it can maintain contact with the patient's back when sliding towards the base 1, and when sliding away from the base 1, the tapping head 21 does not contact the patient's back. Therefore, when the head 21 is tapped, it will make contact with the patient's back when it moves outward and inward, which can guide the liquefied sputum to move towards the airway.

[0057] Example 3: like Figure 7-9 As shown, as an improvement to Embodiment 1, the circular shell 23 is equipped with two fixed shells 6 distributed front and back, and the end of the slide rail 2 is rotatably mounted on the fixed shell 6 via a rotating shaft. A rotating shaft extends into the fixed housing 6 and is rotatably mounted with a second gear. A rack 62, which is slidably mounted in the fixed housing 6 and is connected to the second gear, is driven by the rack. A third elastic element 63 is provided between the end of the rack 62 away from the base 1 and the inner wall of the fixed housing 6. An abutment rod 64 is connected to the end of the rack 62 near the base 1 and extends into the base 1. A cam 65 is rotatably mounted on the upper wall of the circular shell 23. The cam 65 is sleeved on the outside of the drive shaft 24. The abutting rod 64 abuts against the cam 65. A hollow groove 66 is opened in the drive shaft 24. A screw 67 is rotatably mounted at the center of the hollow groove 66. The screw 67 has two sets of symmetrically arranged connecting structures. The upper connecting structure is used to connect with the cam 65, and the lower connecting structure is used to connect with the sliding sleeve 261. The connecting structure includes a screw 67 threadedly connected to a sleeve 7. A through groove is formed on the side wall of the hollow groove 66, and a connecting block 71 is slidably installed in the through groove. The sleeve 7 and the connecting block 71 are connected by a hinged rod 72. The cam 65 has a connecting groove 73 that matches the connecting block 71 on the upper side; The sliding sleeve 261 has a strip groove 74 that matches the lower connecting block 71. The sliding sleeve 261 slides up and down in the strip groove 74 through the lower connecting block 71, so that it is slidably mounted on the outside of the drive shaft 24. When the drive shaft 24 rotates, the sliding sleeve 261 can be driven to rotate synchronously through the lower connecting block 71. A knob 75 is provided at the upper end of the screw 67. When it is necessary to switch the working mode of the striking head 21, the striking head 21 is first de-energized and no longer generates vibration force. Then, the operator rotates the knob 75 to drive the screw 67 to rotate in the hollow groove 66 (at this time, the drive shaft 24 itself does not rotate). When the screw 67 rotates, both sleeves 7 will be displaced upward. When the upper sleeve 7 moves upward, it pushes the connecting block 71 to slide in the through groove through the hinge rod 72, so that the upper connecting block 71 slides into the connecting groove 73 provided by the cam 65. At this time, the drive shaft 24 is connected to the cam 65. When the lower sleeve 7 moves upward, the connecting block 71 is pulled to slide in the through groove by the hinge rod 72, so that the lower connecting block 71 slides out of the strip groove 74. At this time, the drive shaft 24 is not connected to the sliding sleeve 261. At this time, the drive unit is activated, causing the drive shaft 24 to rotate. The rotation of the drive shaft 24 only causes the cam 65 to rotate. Since the abutment rod 64 abuts against the cam 65, when the protruding part of the cam 65 contacts the abutment rod 64, it can push the abutment rod 64 to move. The abutment rod 64 drives the rack 62 to slide within the fixed housing 6, which can drive the second gear to rotate, thereby causing the slide rail 2 to rotate upward. When the protruding part of the cam 65 leaves the abutment rod 64, the elastic force of the third elastic element 63 pushes the rack 62 and the abutment rod 64 to reset, thereby causing the slide rail 2 to rotate downward, so that the tapping head 21 taps the patient's back. In this way, as the drive shaft 24 continues to rotate, it can drive the tapping head 21 to reciprocate tapping the patient's back. This tapping mode differs from the previous high-frequency vibration mode. It simulates the action of manual back percussion to expel phlegm through rhythmic reciprocating tapping. It can more effectively stimulate the patient's back muscles, promote the loosening and expulsion of phlegm. Moreover, this tapping mode can control the frequency and force of tapping by adjusting the rotation speed of the drive shaft according to the patient's specific condition and phlegm expulsion needs, so as to achieve the best phlegm expulsion effect.

[0058] When this tapping mode is not needed, simply turn the knob 75 in the opposite direction to make the screw 67 rotate in the opposite direction, the two sleeves 7 move downward, the upper connecting block 71 exits the connecting groove 73, the lower connecting block 71 re-extends into the strip groove 74, and the drive shaft reconnects with the sliding sleeve, restoring the previous high-frequency vibration sputum expectoration mode.

[0059] This switchable operating mode design allows the pediatric sputum clearance device to adapt to the needs of patients with different conditions and stages of sputum clearance, improving the device's practicality and flexibility. In actual use, medical staff can flexibly select the appropriate sputum clearance mode according to the patient's specific situation, providing more personalized and effective sputum clearance treatment.

[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and specification of the present invention.

Claims

1. A pediatric sputum expectoration device, characterized in that, include: A base (1) is connected to a strap (11) for attaching the base (1) to the patient's back; The percussion mechanism includes a slide rail (2), a percussion head (21), and a drive assembly. The slide rail (2) is rotatably mounted on a base (1). The percussion head (21) is slidably mounted inside the slide rail (2). The drive assembly is mounted inside the base (1) and is used to drive the slide rail (2) to rotate. The percussion head (21) can slide along the slide rail (2) to perform multi-directional percussion on the patient's back.

2. The pediatric sputum expectoration device according to claim 1, characterized in that, A circular shell (23) is rotatably mounted on the upper end of the base (1), and the slide rail (2) is connected to the side wall of the circular shell (23).

3. A pediatric sputum expectoration device according to claim 2, characterized in that, The drive assembly includes a drive shaft (24) rotatably mounted in the middle of the base (1), a power component for driving the drive shaft (24) to rotate is provided at the bottom of the base (1), a first gear (25) is rotatably mounted in the middle of the base (1), a gear ring (251) rotatably mounted on the side wall of the circular shell (23) and driven by the first gear (25), and the drive shaft (24) is driven by the first gear (25).

4. A pediatric sputum expectoration device according to claim 3, characterized in that, A winding wheel (3) is horizontally rotatably installed inside the circular shell (23). The winding wheel (3) is located above the first gear (25). A pull wire (31) is wound around the winding wheel (3). The end of the pull wire (31) is connected to the striking head (21). The winding wheel (3) is connected to the drive shaft (24) for transmission.

5. A pediatric sputum expectoration device according to claim 4, characterized in that, A power output component (26) is slidably mounted on the outside of the drive shaft (24). A sliding component is provided between the base (1) and the circular shell (23) to drive the power output component (26) to slide up and down. When the power output component (26) slides down, it is connected to the first gear (25). When the power output component (26) slides up, it is connected to the winding wheel (3).

6. A pediatric sputum expectoration device according to claim 4, characterized in that, The striking head (21) is provided with a first elastic element (32) between the side of the base (1) and the side wall of the slide rail (2).

7. A pediatric sputum expectoration device according to claim 5, characterized in that, The power output component (26) includes a sliding sleeve (261), and both the upper and lower ends of the sliding sleeve (261) are fixed with connecting parts (262). The first gear (25) and the winding wheel (3) are both provided with connected parts (263) corresponding to the connecting parts (262).

8. A pediatric sputum expectoration device according to claim 5, characterized in that, The sliding member includes an annular groove (4) opened in the side wall of the base (1), an annular plate (41) is slidably installed in the annular groove (4), the annular plate (41) is connected to the power output member (26) through a connecting rod (42), a second elastic member (43) is provided between the upper side of the annular plate (41) and the side wall of the annular groove (4), and a plurality of circumferentially distributed first magnetic blocks (44) are provided on the upper side of the annular plate (41). The bottom wall of the circular shell (23) is provided with a horizontally arranged sliding groove (45), and a second magnetic block (46) is horizontally slidably installed in the sliding groove (45). The upper wall of the base (1) is provided with an annular limiting groove (47), and the second magnetic block (46) extends into the annular groove (4) through the annular limiting groove (47). The side wall of the annular limiting groove (47) is provided with a V-shaped groove (48) corresponding to the position of the first magnetic block (44). The second magnetic block (46) is connected to a top rod (461) at the end away from the base (1), and the striking head (21) is fixed with a push rod (211) that matches the top rod (461).

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