Prone position three-step body position pad for newborns

Abstract

The prone position three-step body position pad comprises a head supporting frame, a thoracico-abdominal supporting frame and a leg supporting frame which are sequentially arranged, and the head supporting frame and the thoracico-abdominal supporting frame are connected through an adjusting device so that the height and the inclination angle of the head supporting frame can be adjusted; a plurality of air bags attached to the table top are arranged on the thoracico-abdominal supporting frame side by side, and the pressure of each air bag is independently adjusted through a micro pump so that local protruding or sinking can be achieved. The chest and abdomen supporting frame and the leg supporting frame are connected through a lifting device so that the height of the leg supporting frame can be adjusted. Through the arrangement of the adjusting device, the height and angle of the head supporting frame can be controlled, and through the arrangement of the lifting device, the height of the foot supporting frame can be adjusted, so that the requirements of multiple body positions of the newborn are met; the multiple air bags are arranged on the thoracico-abdominal supporting frame, different thoracico-abdominal areas of the newborn can be supported in a differentiated mode, and the adaptability to diseases of the newborn is improved.

Description

Technical Field

[0001] The present application relates to the technical field of neonatal care appliances, and in particular to a three-step body positioning mat for neonates in prone position. Background Art

[0002] The three-step prone positioning cushion for newborns is a medical assistive device designed specifically for newborns. It is mainly used to standardize prone posture, improve respiratory function, prevent complications and promote development. It is an important tool for respiratory management and position intervention in newborns (especially premature babies).

[0003] In the related art, a three-step body support cushion for prone position is usually provided in three steps for layered support.

[0004] For example, a three-level stepped anti-slip mat for newborns with application number CN202121135696.0 can adapt to the body sizes of different newborns by changing the positions of the three sponge pads by setting different first sponge pads, second sponge pads and third sponge pads. However, it can only achieve basic body position support, but there is a problem of a single adjustment dimension, and it cannot adapt to the body position requirements required for different diseases of newborns.

[0005] For example, a multi-stage adjustable positioning cushion with application number CN202321506121.4 can adjust the positioning cushion to meet the different positioning needs of newborns through a multi-stage adjustable cushion structure. Although the positioning cushion uses a combination of fan-shaped air bags and separate inflation and deflation to enable the positioning cushion to meet the three-step prone position or supine position with the upper body raised, for the support of the chest and abdominal areas of some sick newborns, the overall support pressure distribution cannot match the support needs of sick newborns, and the needs of special therapeutic positions for newborns (for example, in newborns with aspiration pneumonia, the head needs to be lower than the lower limbs) cannot be met.

[0006] Therefore, there is a need for a prone three-step body position cushion that can match the physiological curvature of newborns and can be flexibly adjusted to meet the various body position requirements of newborns. Summary of the Invention

[0007] The present application aims to solve at least one of the technical problems in the above-mentioned technology to a certain extent.

[0008] To achieve the above-mentioned objectives, the first aspect of the present application proposes a three-step body positioning cushion for prone position of newborns, comprising: a head support frame, a chest and abdomen support frame and a leg support frame arranged in sequence, wherein the head support frame and the chest and abdomen support frame are connected by an adjustment device to adjust the height and inclination angle of the head support frame; a plurality of air bags that fit the table surface are arranged side by side on the chest and abdomen support frame, and the pressure of each air bag is independently adjusted by a micro pump to achieve local convexity or concaveness; the chest and abdomen support frame and the leg support frame are connected by a lifting device to adjust the height of the leg support frame.

[0009] In addition, the three-step prone position cushion for newborns proposed in the present application may also have the following additional technical features:

[0010] As a further description of the above technical solution: the adjustment device includes a first drive motor, a second drive motor and a rotating arm, wherein the first drive motor is arranged on the chest and abdomen support frame, and the output end of the first drive motor is connected to one end of the rotating arm; the second drive motor is arranged on the other end of the rotating arm, and the output end of the second drive motor is connected to the head support frame.

[0011] As a further description of the above technical solution: the lifting device includes a rotating structure and a connecting rod, wherein the chest and abdomen support frame and the leg support frame are pivotally connected on the same side by two parallel connecting rods; the rotating structure is arranged at the bottom of the chest and abdomen support frame, and the rotating end of the rotating structure is connected to the pivot end of one of the connecting rods.

[0012] As a further description of the above technical solution: the rotating structure includes a third drive motor, a worm, a worm wheel and a rotating rod, wherein the rotating rod is connected to the pivot end of the connecting rod; the worm wheel is arranged on the rotating rod; the worm is rotatably arranged at the bottom of the chest and abdomen support frame through the installation cavity and is connected to the worm wheel; the output end of the third drive motor is connected to the worm.

[0013] As a further description of the above technical solution: A three-step prone position cushion for newborns also includes a controller, and the adjustment device, the lifting device and the micro pump of the airbag are electrically connected to the controller respectively.

[0014] As a further description of the above technical solution: the head support frame is provided with a concave structure that matches the face of the newborn, and a detachable neck pillow is provided on the side of the concave structure close to the neck of the newborn.

[0015] As a further description of the above technical solution: the neck pillow includes a flexible support layer, a magnetorheological elastic layer and a silicone surface layer which are covered in sequence, wherein a miniature electromagnetic coil is embedded in the magnetorheological elastic layer to adjust the hardness by reorganizing the chain of magnetic particles in the rheological elastic layer through electromagnetic changes; a pressure sensor is embedded in the silicone surface layer, and the pressure sensor and the electromagnetic coil are electrically connected to the controller respectively, so that the hardness of the neck pillow can be automatically adjusted by changing the pressure value of the pressure sensor.

[0016] As a further description of the above technical solution: elastic bands for blocking gaps are respectively provided at adjacent locations of the head support frame, the chest and abdomen support frame, and the leg support frame.

[0017] The three-step prone position cushion for newborns according to the present application can control the height and angle of the head support frame through the setting of the adjustment device, and can adjust the height of the foot support frame through the setting of the lifting device, thereby meeting the needs of various body positions of newborns; by arranging multiple air bags on the chest and abdomen support frame, different areas of the newborn's chest and abdomen can be supported differently, thereby improving adaptability to newborn diseases.

[0018] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0020] Figure 1 This is a structural diagram of a three-step prone position cushion for newborns according to one embodiment of the present application;

[0021] Figure 2 is a structural schematic diagram of a three-step prone position cushion for newborns according to another embodiment of the present application;

[0022] Figure 3 is a structural schematic diagram of a three-step prone position cushion for newborns according to another embodiment of the present application;

[0023] Figure 4 is a schematic diagram of a rotating structure according to an embodiment of the present application;

[0024] Figure 5 This is a side view of a three-step body positioning cushion for a newborn baby in a prone position according to one embodiment of the present application;

[0025] Figure 6is a diagram showing the positional relationship between the head support frame and the adjustment device according to one embodiment of the present application;

[0026] Figure 7 is a diagram showing the positional relationship between the leg support frame and the lifting device according to one embodiment of the present application;

[0027] Figure 8 This is a schematic diagram of a three-step prone position cushion for a newborn baby in a stored state according to one embodiment of the present application;

[0028] As shown in the figure:

[0029] 100. Head support frame; 101. Concave structure; 102. Neck support; 200. Chest and abdomen support frame; 201. Airbag; 202. Support frame; 300. Leg support frame; 400. Adjustment device; 430. Rotating arm; 410. First drive motor; 420. Second drive motor; 500. Lifting device; 501. Mounting cavity; 510. Rotating structure; 511. Third drive motor; 512. Worm; 513. Turbine; 514. Rotating rod; 520. Connecting rod; 600. Controller. DETAILED DESCRIPTION

[0030] The following describes in detail embodiments of the present application, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0031] The following describes a three-step prone position mat for newborns according to an embodiment of the present application with reference to the accompanying drawings.

[0032] like Figures 1 to 3 As shown, the three-step prone position cushion for newborns in the embodiment of the present application may include a head support frame 100, a chest and abdomen support frame 200, and a leg support frame 300 arranged in sequence.

[0033] The head support frame 100 and the chest and abdomen support frame 200 are connected via an adjustment device 400 to adjust the height and tilt angle of the head support frame 100 .

[0034] As a possible scenario, Figure 2 As shown, the adjusting device 400 includes a first driving motor 410 , a second driving motor 420 and a rotating arm 430 .

[0035] Among them, the first drive motor 410 is arranged on the chest and abdomen support frame 200, and the output end of the first drive motor 410 is connected to one end of the rotating arm 430, and the second drive motor 420 is arranged on the other end of the rotating arm 430, and the output end of the second drive motor 420 is connected to the head support frame 100.

[0036] It should be noted that the rotation amplitude of the neonatal head support frame 100 is small and the load is light, so the first drive motor 410 and the second drive motor 420 (such as micro stepping motors) can reduce the size of the equipment, adapt to the space limitations of the crib or incubator, and achieve millimeter-level angle accuracy through closed-loop control to meet the clinical fine-tuning requirements for head support. Therefore, the controllability of the drive is better than that of mechanical transmission.

[0037] It can be understood that the rotation of the first drive motor 410 can drive the rotating arm 430 to rotate, thereby changing the position of the head support frame 100, and then causing a height difference between the head support frame 100 and the chest and abdomen support frame 200, and the rotation of the second drive motor 420 can cause the head support frame 100 to have a tilt angle. In addition, by controlling the forward and reverse rotation of the first drive motor 410, the entire head support frame 100 can be raised or lowered to achieve the requirement that the head support frame 100 is higher than the chest and abdomen support frame 200 or the head support frame 100 is lower than the chest and abdomen support frame 200.

[0038] For example, when the head support frame 100 needs to be raised to a height of L and tilted to an angle of A, the first driving motor 410 is driven to rotate the adjustment device 400 and the head support frame 100 which were originally in a collinear and horizontal state.

[0039] like Figure 5 and Figure 6 As shown, according to the trigonometric sine function formula L=L1*SinB, (L is the height difference between the head support frame 100 and the chest and abdomen support frame, L1 is the effective length of the rotating arm 430, and B is the required rotation angle), when L1 and L are known, the required rotation angle B of the rotating arm 430 can be calculated.

[0040] The first drive motor 410 drives the rotating arm 430 to rotate by angle B and then stops, and then a compensation calculation is performed, that is, the actual required rotation angle C of the second drive motor 420 = BA (A is the target angle, B is the rotation angle of the rotating arm 430). Therefore, after the first drive motor 410 rotates by angle B, the second drive motor 420 rotates by angle C to achieve the requirements of the head support frame 100 being lifted by L and tilted by angle A.

[0041] A plurality of air bags 201 that fit the table surface are arranged side by side on the chest and abdomen support frame 200. The pressure of each air bag 201 is independently adjusted by a micro pump to achieve local convexity or concavity.

[0042] As a possible scenario, the multiple airbags 201 can be arranged in two rows, with at least three airbags in each row, thereby forming at least six independent control areas to individually control different parts of the newborn's chest and abdomen.

[0043] The chest and abdomen support frame 200 and the leg support frame 300 are connected via a lifting device 500 to adjust the height of the leg support frame 300.

[0044] In one embodiment of the present application, Figure 4 As shown, the lifting device 500 includes a rotating structure 510 and a connecting rod 520 .

[0045] Among them, two parallel connecting rods 520 are pivotally connected on the same side of the chest and abdomen support frame 200 and the leg support frame 300, and the rotating structure 510 is set at the bottom of the chest and abdomen support frame 200, and the rotating end of the rotating structure 510 is connected to the pivot end of one of the connecting rods 520.

[0046] It should be noted that, by providing the parallel connecting rods 520 , when the connecting rods 520 rotate, the leg support frame 300 is always kept from tilting, that is, the leg support frame 300 is smoothly raised and lowered.

[0047] To clearly illustrate the previous embodiment, in one embodiment of the present application, the rotating structure 510 includes a third driving motor 511 , a worm 512 , a worm wheel 513 and a rotating rod 514 .

[0048] Among them, the rotating rod 514 is connected to the pivot end of the connecting rod 520, the worm gear 513 is set on the rotating rod 514, the worm 512 can be rotatably set at the bottom of the chest and abdomen support frame 200 through the installation cavity 501, and is connected to the worm gear 513, and the output end of the third drive motor 511 is connected to the worm gear 512.

[0049] It should be noted that the transmission between the worm wheel 513 and the worm 512 in the rotating structure 510 has a self-locking feature, which can maintain the leg support angle without an additional braking device, preventing accidental displacement due to gravity or baby's activities. Moreover, since the leg support frame 300 needs to bear the weight of the baby's lower limbs and possible pedaling movements, the transmission ratio of the worm wheel 513 and the worm 512 can amplify the output torque of the third drive motor 511, ensuring smoothness and load capacity during low-speed rotation, and its static stability is better than that of direct motor drive.

[0050] It can also be understood that by controlling the forward and reverse rotation of the third drive motor 511, the entire leg support frame 300 can be raised or lowered to achieve the requirement that the leg support frame 300 is higher than the chest and abdomen support frame 200 or the leg support frame 300 is lower than the chest and abdomen support frame 200.

[0051] For example, if Figure 5 and Figure 7 As shown, when the height difference between the leg support frame 300 and the chest and abdomen support frame 200 needs to be adjusted to H, according to the trigonometric sine function formula H=L2*SinD, (L2 is the effective length of the connecting rod 520, and D is the angle at which the connecting rod 520 needs to rotate), when H and L2 are known, the required rotation angle D of the connecting rod 520 can be obtained. Since the connecting rod 520 and the worm 512 are coaxially arranged, the rotation angle D of the worm 512 can be obtained, which can be controlled by the third drive motor 511.

[0052] To further improve the control of the head support frame 100, the airbag 201 and the leg support frame 300, the prone three-step body position cushion for newborns also includes a controller 600, and the adjustment device 400, the lifting device 500 and the micro pump of the airbag 201 are electrically connected to the controller 600 respectively.

[0053] Specifically, the first drive motor 410, the second drive motor 420 and the third drive motor 511 are electrically connected to the controller 600 respectively; further, the micro pump corresponding to the airbag 201 is electrically connected to the controller 600, and the relevant staff can enter specific parameters, such as the height and angle required to adjust the head support frame 100, the height required to adjust the leg support frame 300, and the pressure required for the airbag 201, so that the controller 600 can control the adjustment device 400, the lifting device 500 and the micro pump respectively.

[0054] For example, for newborns with gastroesophageal reflux, since gastric contents reflux into the esophagus, the risk of reflux needs to be reduced by placing the baby in a head-high, feet-low position. The head support frame 100 can be raised by 15 mm and tilted at a 10° angle to keep the airway open. The airbag 201 in the stomach area can be pressurized to 20-25 mmHg to limit gastric expansion. The airbag 201 in the esophagus area can be depressurized to 8-10 mmHg to reduce pressure on the lower esophageal sphincter. At the same time, the leg support frame 300 can be lowered by 5 mm to form a head-high, feet-low position. Gravity is used to reduce intragastric pressure. Combined with pressurization in the stomach area to inhibit gastric expansion and decompression in the esophagus area to avoid sphincter pressure, the frequency of reflux is reduced, thereby reducing the frequency of reflux and improving feeding tolerance.

[0055] For newborns with bronchopulmonary dysplasia, due to poor lung compliance, dynamic pressure stimulation is required to promote secretion discharge. The head support frame 100 can be controlled to rise 5mm and tilt 10° to expand the airway diameter; the air bags 201 at the midline of the sternum and the left intercostal area are alternately pressurized to 18mmHg (at intervals of 5 seconds), and the air bags 201 at the right intercostal and ventral lateral areas are alternately depressurized to 12mmHg (at intervals of 5 seconds); the leg support frame 300 is periodically raised and lowered by ±5mm (at a frequency of 5 times / minute) to promote lymphatic return. The alternating pressurization of the air bags 201 simulates percussion expectoration to reduce secretion retention. The leg swinging enhances blood circulation and improves oxygenation, thereby improving lung dynamic compliance and reducing carbon dioxide partial pressure.

[0056] For newborns with aspiration pneumonia, due to the retention of respiratory secretions, postural drainage is required to promote sputum discharge. The head support frame 100 is lowered by 10 mm and tilted at a -5° angle. The airbag 201 in the lung area is depressurized to 8 mmHg to reduce chest pressure, and the airbag 201 in the abdomen area is pressurized to 15 mmHg to stabilize the abdominal pressure. The leg support frame 300 remains horizontal to avoid chest pressure. The head-down and feet-high position promotes gravity drainage of secretions. The chest and abdomen zone pressure adjustment maintains respiratory stability, which can improve sputum drainage efficiency and oxygen saturation.

[0057] In one embodiment of the present application, a concave structure 101 matching the face of a newborn is provided on the head support frame 100 , and a detachable neck pillow 102 is provided on one side of the concave structure 101 close to the neck of the newborn.

[0058] As a possible scenario, a male Velcro patch is provided on the surface of the concave structure 101 of the head support frame 100, and a female Velcro patch is sewn on the back of the neck pillow 102. The male Velcro patch and the female Velcro patch are detachably attached.

[0059] As another possible situation, guide rails are set on both sides of the concave structure 101, and a clip matching the guide rails is embedded in the bottom of the neck pillow 102. When disassembling, gently pull the clip of the neck pillow 102 outward, and when installing, align it with the guide rails and push it in.

[0060] It should be noted that, for healthy newborns, the neck pillow 102 needs to be removed when the newborns lie prone, while it can be installed as needed for sick newborns.

[0061] To clearly illustrate the above embodiment, in one embodiment of the present application, the neck pillow 102 includes a flexible support layer, a magnetorheological elastic layer, and a silicone surface layer that are sequentially coated.

[0062] Among them, a miniature electromagnetic coil is embedded in the magnetorheological elastic layer to adjust the hardness by reorganizing the chain of magnetic particles in the rheological elastic layer through electromagnetic changes. A capacitive pressure sensor is embedded on the surface of the silicone, and the pressure sensor and the electromagnetic coil are electrically connected to the controller 600 respectively, so that the hardness of the neck pillow 102 can be automatically adjusted through the change of the pressure value of the pressure sensor.

[0063] It should be noted that the magnetic particles in the rheological elastic layer include neodymium iron boron particles with a volume share of 30% and a particle size of 5-10μm. Under normal conditions (no magnetic field), the magnetic particles are randomly distributed and have a low elastic modulus (0.5kPa); when the magnetic field is activated, the magnetic particles are arranged in a chain along the direction of the magnetic field, and the elastic modulus is increased to 5kPa.

[0064] Specifically, when the newborn is lying prone, the pressure sensor collects neck pressure in real time, and the controller 600 dynamically matches the hardness of the magnetorheological layer based on the pressure data.

[0065] For newborns with respiratory distress syndrome, if the neck pressure is detected to be too high, the magnetorheological layer will be locally hardened to stabilize the airway opening; for newborns with bronchopulmonary dysplasia, if the pressure difference on both sides of the neck is detected to exceed the threshold, the low-pressure side electromagnetic coil will be controlled to reduce the flow to soften the material, guide the head and neck to the center, and improve the drainage of secretions.

[0066] In one embodiment of the present application, in order to prevent limbs or skin from falling into gaps and maintain body position stability, elastic bands for blocking gaps are respectively provided at adjacent locations of the head support frame 100, the chest and abdomen support frame 200, and the leg support frame 300. In addition, in order to further ensure the stability of the entire body position cushion, the chest and abdomen support frame 200 is provided with a bracket 202.

[0067] In another embodiment of the present application, Figure 8 As shown, by controlling the first drive motor 410, the second drive motor 420 and the third drive motor 511, the head support frame 100 and the leg support frame 300 can be stored under the chest support frame 200 to reduce space occupation when not in use.

[0068] In summary, according to the embodiment of the present application, the three-step prone position cushion is used for newborns. Through the setting of the adjustment device 400, the height and angle of the head support frame 100 can be controlled. Through the setting of the lifting device 500, the height of the foot support frame can be adjusted to meet the needs of various body positions of newborns. By arranging multiple air bags 201 on the chest and abdomen support frame, differentiated support can be provided for different areas of the chest and abdomen of the newborn, thereby improving the adaptability to newborn diseases. Therefore, the present application can not only adapt to the prone position of ordinary newborns, but also meet the body position adjustment required for different disease conditions of newborns.

[0069] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0070] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0071] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A three-step body positioning cushion for a newborn baby in prone position, characterized in that: include: A head support frame (100), a chest and abdomen support frame (200), and a leg support frame (300) are sequentially arranged, wherein: The head support frame (100) and the chest and abdomen support frame (200) are connected via an adjustment device (400) to adjust the height and tilt angle of the head support frame (100); A plurality of airbags (201) are arranged side by side on the chest and abdomen support frame (200), and the pressure of each airbag (201) is independently adjusted by a micro pump to achieve local convexity or concavity; The chest and abdomen support frame (200) and the leg support frame (300) are connected via a lifting device (500) to adjust the height of the leg support frame (300).

2. The three-step prone position cushion for newborns according to claim 1, characterized in that: The regulating device (400) comprises a first driving motor (410), a second driving motor (420) and a rotating arm (430), wherein: The first drive motor (410) is arranged on the chest and abdomen support frame (200), and the output end of the first drive motor (410) is connected to one end of the rotating arm (430); The second drive motor (420) is arranged on the other end of the rotating arm (430), and the output end of the second drive motor (420) is connected to the head support frame (100).

3. The three-step prone position cushion for newborns according to claim 1, characterized in that: The lifting device (500) comprises a rotating structure (510) and a connecting rod (520), wherein: The chest and abdomen support frame (200) and the leg support frame (300) are pivotally connected on the same side by two parallel connecting rods (520); The rotating structure (510) is arranged at the bottom of the chest and abdomen support frame (200), and the rotating end of the rotating structure (510) is connected to the pivot end of one of the connecting rods (520).

4. The three-step prone position cushion for newborns according to claim 3, characterized in that: The rotating structure (510) includes a third driving motor (511), a worm (512), a worm wheel (513) and a rotating rod (514), wherein: The rotating rod (514) is connected to the pivot end of the connecting rod (520); The worm gear (513) is arranged on the rotating rod (514); The worm (512) is rotatably arranged at the bottom of the chest and abdomen support frame (200) through the installation cavity (501) and is connected to the worm wheel (513); The output end of the third drive motor (511) is connected to the worm (512).

5. The three-step prone position cushion for newborns according to claim 1, characterized in that: A controller (600) is also included, and the regulating device (400), the lifting device (500) and the micro pump of the airbag are electrically connected to the controller (600) respectively.

6. The three-step prone position cushion for newborns according to claim 5, characterized in that: The head support frame (100) is provided with a concave structure (101) that matches the face of a newborn, and a detachable neck pillow (102) is provided on a side of the concave structure (101) close to the neck of the newborn.

7. The three-step prone position cushion for newborns according to claim 6, characterized in that: The neck pillow (102) comprises a flexible support layer, a magnetorheological elastic layer and a silicone surface layer which are coated in sequence, wherein: The magnetorheological elastic layer is embedded with a micro electromagnetic coil to adjust the hardness by reorganizing the chain of magnetic particles in the magnetorheological elastic layer through electromagnetic changes. A pressure sensor is embedded on the surface of the silicone rubber, and the pressure sensor and the electromagnetic coil are electrically connected to the controller respectively, so that the hardness of the neck pillow can be automatically adjusted through the change of the pressure value of the pressure sensor.

8. The three-step prone position cushion for newborns according to claim 1, characterized in that: Adjacent locations of the head support frame (100), the chest and abdomen support frame (200), and the leg support frame (300) are respectively provided with elastic bands for shielding gaps.

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