Multifunctional examination bed for infants

Abstract

This invention relates to the field of medical device technology and discloses a multifunctional examination bed for infants. By integrating length measurement, adductor angle auxiliary measurement, dorsiflexion angle measurement, visual response testing in two positions, and auditory response testing into one bed, the frequency of tool changes and repositioning during the examination is reduced. The examiner can complete multiple assessments of the infant in the order of examination on one bed, reducing the cumulative stress response caused to the infant by repeated moving and touching of tools. This allows the infant to complete the assessment in a relatively stable environment, thereby obtaining clinical data that closely approximates the infant's true neuromotor development level and improving examination efficiency.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to a multifunctional examination bed for infants. Background Technology

[0002] The period from 0 to 1 year old is a critical stage in which the infant's central nervous system develops most rapidly and exhibits the greatest plasticity. During this period, the assessment of neuromotor function is of great significance for early identification of developmental deviations and the formulation of intervention strategies. Currently, there are 20 neuromotor examinations for infants aged 0-1 years, covering multiple items such as visual tracking, auditory response, prone head lifting, adductor angle, and dorsiflexion angle of the foot, aiming to provide a scientific assessment of the infant's motor ability, intellectual development, and future quality of life.

[0003] However, in current clinical practice, medical staff typically conduct examinations using ordinary tables or simple beds. These general-purpose devices are limited in function and cannot meet the specific needs of neuromotor examinations regarding positioning, measurement accuracy, and tool switching. For example, visual tracking and auditory response tests require stable trajectory guidance devices, while measurements of the adductor angle and dorsiflexion angle require angle references and positioning assistance. This necessitates frequent tool changes and manual adjustments to the infant's position during the examination, making the process cumbersome, impacting efficiency, and potentially interfering with the infant's cooperation, thus affecting the accuracy and consistency of the results. Summary of the Invention

[0004] The main objective of this invention is to provide a multifunctional examination bed for infants, which aims to improve upon the shortcomings of the prior art and solve the problem of low examination efficiency caused by the need for frequent tool changes and manual adjustment of the infant's position during the neuromotor examination of infants.

[0005] To achieve the above objectives, the present invention provides a multifunctional infant examination bed, comprising: The bed frame has a bed surface; A length measuring component, installed on the bed, is used to measure the infant's length; An adductor angle auxiliary measurement marker is set on the bed surface to provide a reference for limb positioning when testing the infant's adductor angle and to measure the infant's adductor angle; A foot dorsiflexion angle measuring component is movably mounted on the bed and is used to measure the dorsiflexion angle value of an infant's foot. A visual response testing component is mounted on the bed, and the visual response testing component includes: A supine position testing component, comprising a first mounting component and a first stimulus-bearing component, wherein the first stimulus-bearing component is mounted on the first mounting component and is suspended directly above the infant's head; A prone position testing component includes a first magnetic component and a second stimulus-bearing component. The second stimulus-bearing component is mounted on the first magnetic component and can move on the bed surface to test the infant's visual tracking response ability in a prone position. An auditory response testing component is installed on the bed. The auditory response testing component includes: The third stimulus-bearing component is used to test an infant's auditory response in a prone position. The third magnetic component is connected to the third stimuli-carrying component via a connecting rope, and the third magnetic component and the first magnetic component are magnetically connected.

[0006] Optionally, the third stimulus-bearing component is a bell.

[0007] Optionally, the supine position testing component further includes: A first guide rail is disposed on the bed body. A first damping shaft is disposed at both ends of the first mounting member. One first damping shaft is embedded at one end of the first guide rail, and the other first damping shaft is embedded at the other end of the first guide rail, so that the first mounting member can be rotated to be housed in the first guide rail.

[0008] Optionally, the prone position testing component further includes: A second guide rail is provided on the bed body, and at least a portion of the first magnetic attraction component is located within the second guide rail; The driver component includes: The mounting base is connected to the bed body; A drive motor is mounted on the mounting base plate; The first pulley is installed at the output end of the drive motor; The second pulley is mounted on the mounting base plate; A drive belt is wound around the first pulley and the second pulley; A swing arm, one end of which is connected to the second pulley, and the other end of which is connected to the first magnetic attraction component.

[0009] Optionally, the second stimulant-carrying member includes: Second magnetic attraction component; A black and white card, wherein the black and white card and the second magnetic component are connected by a connecting rope; The second magnetic attraction component and the first magnetic attraction component are magnetically connected.

[0010] Optionally, the length measuring component includes: First baffle; The second baffle is disposed opposite to the first baffle. The first baffle and the second baffle both have a use state and a storage state. When in use, the first baffle and the second baffle are perpendicular to the bed surface. When in storage, the first baffle and the second baffle are laid flat on the bed surface. Length markings are arranged along the length of the bed and located between the first baffle and the second baffle.

[0011] Optionally, the adductor angle auxiliary measurement markers include: Multiple baselines are set on the bed surface to indicate the extent of extension of the infant's lower limbs.

[0012] Optionally, the dorsiflexion angle measuring component includes: Two measuring units, corresponding to the baby's left and right feet respectively, are arranged symmetrically with respect to the longitudinal central axis of the bed. Each of the measurement units includes: A support plate, one end of which is rotatably connected to the bed frame via a pivot, has a measuring position that can be flipped upwards to form a certain angle with the bed surface when in use, and a hidden position that can be folded downwards to be flush with the bed surface when stored. An angle scale is disposed on one side of the support plate to indicate the rotation angle of the support plate relative to the bed surface. The angle scale has a measurement range of 0 to 180 degrees and a minimum division value of 1 degree.

[0013] Optionally, a protective fence is provided on the outer edge of the bed, the protective fence being continuously laid along the outer perimeter of the bed and fixedly connected to the outer edge of the bed.

[0014] Optionally, four vertical support legs are provided on the bottom bearing surface of the bed; Each of the vertical support legs is equipped with a caster wheel at its lower end, the caster wheel being configured to allow the bed to move smoothly in any direction in the horizontal plane.

[0015] Beneficial Effects: The multifunctional infant examination bed proposed in this invention includes a bed frame, a length measuring component, a dorsiflexion angle measuring component, a visual response testing component, and an auditory response testing component. The bed frame has a bed surface. The length measuring component is disposed on the bed frame and is used to measure the infant's length. An adductor angle auxiliary measurement marker is disposed on the bed surface to provide a reference benchmark for limb positioning when testing the infant's adductor angle and to measure the infant's adductor angle. The dorsiflexion angle measuring component is movably mounted on the bed frame and is used to measure the dorsiflexion angle value of the infant's foot. The visual response testing component is disposed on the bed frame and includes a supine position testing component and a prone position testing component. The supine position testing component includes a first mounting component and a first stimulus support. The device includes a first stimulus-bearing component mounted on a first mounting component and suspended directly above the infant's head; a prone position testing component including a first magnetic component and a second stimulus-bearing component, the second stimulus-bearing component mounted on the first magnetic component and movable on the bed surface to test the infant's visual tracking response ability in a prone position; and an auditory response testing component mounted on the bed. The auditory response testing component includes a third stimulus-bearing component and a third magnetic component, the third stimulus-bearing component being used to test the infant's auditory response ability in a prone position; the third stimulus-bearing component is connected to the first magnetic component via a connecting rope, and the third magnetic component is magnetically connected to the first magnetic component. This design integrates length measurement, adductor angle measurement, dorsiflexion angle measurement, visual response testing in two positions, and auditory response testing onto a single bed. This reduces the frequency of tool changes and repositioning during the examination. Examiners can complete multiple assessments of the infant in the order of examination on one bed, reducing the cumulative stress caused to the infant by repeated moving and changing of tools. This allows the infant to complete the assessment in a relatively stable environment, thereby obtaining clinical data that closely approximates their true neuromotor development level and improving examination efficiency. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0017] Figure 1 This is a three-dimensional structural diagram of the multifunctional infant examination bed disclosed in this application; Figure 2 This is a schematic diagram of the structure of the driving component disclosed in this application; Figure 3 This is a schematic diagram of the structure of the auditory response testing component disclosed in this application; Figure 4 This is a structural schematic diagram of the second irritant-bearing component disclosed in this application; Figure 5 This is a top view of the multifunctional infant examination bed disclosed in this application; Figure 6 for Figure 5 A partial schematic diagram of point A in the diagram.

[0018] Explanation of icon numbers: 1. Bed frame; 2. Body length measuring component; 21. First baffle; 22. Second baffle; 23. Length scale markings; 3. Auxiliary measurement markings for adductor angle; 31. Baseline; 32. Placement correction line; 33. Indicator extension line; 4. Dorsiflexion angle measurement assembly; 41. Measurement unit; 411. Support plate; 412. Angle scale; 5. Visual response testing assembly; 51. Supine position testing assembly; 511. First mounting component; 512. First stimulus-bearing component; 513. First guide rail; 52. Prone position testing assembly; 521. First magnetic component; 522. Second stimulus-bearing component; 5221. Second magnetic component; 5222. Black and white board; 523. Second guide rail; 524. Drive assembly; 5241. Mounting base plate; 5242. Drive motor; 5243. First pulley; 5244. Second pulley; 5245. Transmission belt; 5246. Swing arm; 6. Auditory response testing component; 61. Third stimulus carrier component; 62. Third magnetic attraction component; 7. Protective fence; 8. Vertical support legs; 9. Casters.

[0019] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0020] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0021] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0022] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0023] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the word "and / or" throughout the text means including three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of a person skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0024] The period from 0 to 1 year old is a critical stage in which the infant's central nervous system develops most rapidly and exhibits the greatest plasticity. During this period, the assessment of neuromotor function is of great significance for early identification of developmental deviations and the formulation of intervention strategies. Currently, there are 20 neuromotor examinations for infants aged 0-1 years, covering multiple items such as visual tracking, auditory response, prone head lifting, adductor angle, and dorsiflexion angle of the foot, aiming to provide a scientific assessment of the infant's motor ability, intellectual development, and future quality of life.

[0025] However, in current clinical practice, medical staff typically conduct examinations using ordinary tables or simple beds. These general-purpose devices are limited in function and cannot meet the specific needs of neuromotor examinations regarding positioning, measurement accuracy, and tool switching. For example, visual tracking and auditory response tests require stable trajectory guidance devices, while measurements of the adductor angle and dorsiflexion angle require angle references and positioning assistance. This necessitates frequent tool changes and manual adjustments to the infant's position during the examination, making the process cumbersome, impacting efficiency, and potentially interfering with the infant's cooperation, thus affecting the accuracy and consistency of the results.

[0026] Based on this, this embodiment provides a multifunctional examination bed for infants, including a bed body 1, a length measuring component 2, a dorsiflexion angle measuring component 4, a visual response testing component 5, and an auditory response testing component 6. The bed body 1 has a bed surface; the length measuring component 2 is disposed on the bed body 1 and is used to measure the infant's length; the adductor angle auxiliary measurement mark 3 is disposed on the bed surface and is used to provide a reference benchmark for limb placement when testing the infant's adductor angle and to measure the infant's adductor angle; the dorsiflexion angle measuring component 4 is movably mounted on the bed body 1 and is used to measure the dorsiflexion angle value of the infant's foot; the visual response testing component 5 is disposed on the bed body 1 and includes a supine position testing component 51 and a prone position testing component 52. The supine position testing component 51 includes a first mounting component 511 and a first stimulus bearing component 512. The stimulus carrier 512 is mounted on the first mounting component 511 and is suspended directly above the infant's head. The prone position test assembly 52 includes a first magnetic component 521 and a second stimulus carrier 522. The second stimulus carrier 522 is mounted on the first magnetic component 521 and can move on the bed surface to test the infant's visual tracking response ability in the prone position. The auditory response test assembly 6 is set on the bed 1. The auditory response test assembly 6 includes a third stimulus carrier 61 and a third magnetic component 62. The third stimulus carrier 61 is used to test the infant's auditory response ability in the prone position. The third stimulus carrier 61 is connected to the third stimulus carrier 61 by a connecting rope, and the third magnetic component 62 is magnetically connected to the first magnetic component 521.

[0027] The multifunctional infant examination bed provided in this embodiment integrates length measurement, adductor angle auxiliary measurement, dorsiflexion angle measurement, visual response testing in two positions, and auditory response testing into one bed 1. This reduces the frequency of tool changes and repositioning during the examination. The examiner can complete multiple assessments of the infant in the order of examination on one bed 1, reducing the cumulative stress response caused to the infant by repeated moving and changing of tools. This allows the infant to complete the assessment in a relatively stable environment, thereby obtaining clinical data that closely approximates the infant's true neuromotor development level and improving examination efficiency.

[0028] In this embodiment, the bed frame 1 is manufactured using a one-piece injection molding process, preferably made of polypropylene or polycarbonate, both of which possess good mechanical properties and resistance to disinfectant corrosion. The overall length of the bed frame 1 ranges from 800 mm to 1200 mm, the overall width ranges from 500 mm to 700 mm, and the height of the bed surface from the ground ranges from 700 mm to 850 mm. These dimensions can cover the body size requirements of infants from newborns to twelve-month-old infants, while also meeting the ergonomic requirements for operating height.

[0029] Specifically, the bottom bearing surface of the bed frame 1 is provided with four vertical support legs 8; the upper end of each vertical support leg 8 is fixedly connected to the bottom surface of the bed frame 1 by threaded connection or welding. The main body of the vertical support leg 8 is made of stainless steel square or round tube to enable the bed frame 1 to have vertical bearing capacity and resistance to lateral tipping. The lower end of each vertical support leg 8 is equipped with casters 9, preferably a double-wheel caster structure. The configuration of the casters 9 allows the bed frame 1 to move smoothly in any direction in the horizontal plane, facilitating the transfer of the bed frame 1 between different examination areas or the adjustment of the placement of the bed frame 1 within the same examination room.

[0030] In a preferred embodiment, a protective railing 7 is provided on the outer edge of the bed 1. The protective railing 7 is continuously laid along the outer perimeter of the bed 1 and is fixedly connected to the outer edge of the bed 1. The height of the protective railing 7 ranges from 50 mm to 120 mm, and its cross-section can be designed as cylindrical or elliptical to avoid sharp edges. This design can prevent the infant from slipping off the bed surface due to limb movements during the examination, especially when performing prone position tests or adductor angle tests, where the infant has a large range of rolling and kicking movements. The continuously laid protective railing 7 can provide reliable lateral restraint protection.

[0031] More specifically, the protective fence 7 and the bed frame 1 can also be connected in a detachable manner, such as by a pin or quick-release buckle, so that the protective fence 7 can be removed when the bed surface needs to be cleaned, eliminating cleaning dead corners.

[0032] In this embodiment, the length measuring component 2 includes a first baffle 21, a second baffle 22 and a length scale mark 23, wherein the first baffle 21 and the second baffle 22 are arranged opposite to each other, corresponding to the head end and foot end of the infant, respectively.

[0033] Both the first baffle 21 and the second baffle 22 have a working state and a retracted state. In the working state, the first baffle 21 and the second baffle 22 are perpendicular to the bed surface, forming two vertical limiting planes. The first baffle 21 and the second baffle 22 are used to abut against the soles of the feet and the top of the infant's head, respectively. In the retracted state, the first baffle 21 and the second baffle 22 lie flat on the bed surface via a damping pivot, thus not interfering with other testing procedures. This design consideration is that if the baffles are always upright, during prone position testing or visual response testing, the upright baffles can easily obstruct the operator's view, and the infant's attention can easily be distracted by seeing the baffles; while in the retracted state, the baffles are flush with or slightly tilted to the bed surface, thus eliminating the aforementioned interference factors.

[0034] Specifically, the first baffle 21 and the second baffle 22 are each connected to the bed frame 1 via a damping pivot, allowing the first baffle 21 and the second baffle 22 to remain at any angle during the flipping process, while providing a suitable operating feel. When it is necessary to switch the first baffle 21 and the second baffle 22 from the storage state to the use state, the operator holds the edge of the baffle with their fingers and lifts the first baffle 21 and the second baffle 22 upwards until they reach a position perpendicular to the bed surface. At this time, the damping pivot automatically locks, fixing the first baffle 21 and the second baffle 22 in the use position.

[0035] Length markings 23 are arranged along the length of the bed frame 1 and are located between the first baffle 21 and the second baffle 22. The length markings 23 can be printed on the bed surface or embedded in the elongated groove of the bed frame 1. The measurement range of the length markings 23 is 0~120cm, and the measurement accuracy is 1mm. The zero mark of the length markings 23 is aligned with the inner side of the first baffle 21 when it is in use. When the second baffle 22 is against the top of the baby's head, the scale value pointed to by the inner side of the second baffle 22 is the baby's length.

[0036] In practice, the operator first flips the first baffle 21 and the second baffle 22 on the bed 1 to the working position, then places the baby in a supine position on the bed, so that the soles of the baby's feet gently touch the inner side of the first baffle 21. Then, the operator gently presses down on the baby's knees with one hand to keep the lower limbs straight, and slides the second baffle 22 with the other hand so that its inner side contacts the top of the baby's head, and reads the scale value corresponding to the inner edge of the second baffle 22.

[0037] Since both the first baffle 21 and the second baffle 22 are perpendicular to the bed surface and their inner surfaces are flat, they provide a linear reference standard, eliminating reading errors caused by visual alignment. Simultaneously, the use of the first baffle 21 and the second baffle 22 eliminates the need for the operator to simultaneously hold the infant's head and feet with their palms, reducing the difficulty of the operation. After measurement, the first baffle 21 and the second baffle 22 are placed flat on the bed surface, and the bed 1 can then be used for other testing items. This design makes length measurement a natural part of the entire examination process, eliminating the need for a separate length measurement board, reducing the number of tool changes and infant repositioning adjustments, thereby reducing the probability of infant stress and facilitating the smooth progress of subsequent tests.

[0038] In this embodiment, the adductor angle auxiliary measurement mark 3 is set on the bed surface to provide a reference benchmark for limb placement when testing the infant's adductor angle and to measure the infant's adductor angle.

[0039] The adductor angle test is a classic procedure in infant neurodevelopmental assessment, used to evaluate the muscle tone of the adductor muscles of the hip joint. During the test, the infant is placed in a supine position. The operator holds the infant's knees, keeping the legs straight, and then simultaneously extends both legs outwards until significant resistance is encountered. The angle between the thighs and the longitudinal axis of the body at this point is the adductor angle. The normal range of the adductor angle varies with age; an abnormally large or small angle suggests a possible pathological condition of hypotonia or hypertonia.

[0040] The accuracy of the adductor angle test highly depends on the symmetrical extension of both lower limbs and the accurate alignment of the baseline 31. Traditionally, operators estimate the angle visually or use a separate goniometer, which introduces significant subjective error and requires simultaneously fixing the infant's lower limbs, reading the angle, and observing the infant's reaction, making the operation quite demanding. This invention solves these problems by setting an auxiliary measurement marker 3 for the adductor angle.

[0041] Specifically, see Figures 5-6 As shown, the adductor angle auxiliary measurement marker 3 includes multiple baselines 31, placement correction lines 32, and indicator extension lines 33. These baselines 31 are set on the bed surface to indicate the degree of extension of the infant's bilateral lower limbs. The baselines 31 are distributed in pairs on the bed surface with the longitudinal central axis of the bed body 1 as the axis of symmetry. Each baseline 31 extends outward from the same origin, forming radial lines at different angles to the longitudinal central axis. Preferably, the set of baselines 31 includes multiple sets of lines at angles of 20°, 40°, 60°, 80°, 100°, 120°, 140°, 160°, 180°, 200°, and 220° to the longitudinal central axis. Each set of lines includes two symmetrically distributed baselines 31 on the left and right sides. The longitudinal central axis of the bed body 1 coincides with the 0° baseline 31. Two placement correction lines 32 are provided, which are symmetrical about the longitudinal central axis. The indicator extension line 33 is aligned with the 180° baseline.

[0042] In a preferred embodiment, each baseline 31 is set to a different color, for example, a gradient color from light to dark from low angle to high angle, so that the operator can quickly identify the current unfolding angle.

[0043] Specifically, the starting point of the baseline 31 corresponds to the central projection position of the hip joint of the supine infant. The projection of the center of the infant's hip joint on the body surface is approximately 20 to 30 millimeters lateral to the pubic symphysis. In this invention, the origin of the radiation of the baseline 31 is set at the center of this projection area, so that when the infant's two lower limbs are extended along the direction of the baseline 31, the axis of the lower limbs coincides with the baseline 31, thereby intuitively indicating the current extension angle.

[0044] During use, the operator first places the infant in a supine position on the bed, adjusting the infant's position so that their body is roughly aligned with the longitudinal central axis of the bed 1, with the center of both hip joints aligned with the radiation origin area of ​​the baseline 31. The operator then holds the infant's knees with both hands and slowly extends both lower limbs outward from the initial parallel position. During this extension, the operator observes along the long axis of the infant's lower limbs. When the lower limbs coincide with a baseline 31, the angle value represented by that baseline 31 can be quickly read. Since the baselines 31 are continuously set at fixed angular intervals, the operator can visually determine which two baselines 31 the lower limbs are between and estimate the intermediate angle without the aid of a separate protractor, thus obtaining the adductor angle measurement value.

[0045] The aforementioned structural design provides an objective visual reference, improves the consistency and repeatability of angle estimation, and reduces measurement errors between different operators. Secondly, when performing lower limb extension exercises, operators no longer need to be distracted by manipulating the protractor, allowing them to focus most of their attention on sensing changes in the infant's muscle resistance, thus determining the test endpoint—the location where significant resistance occurs.

[0046] It is worth mentioning that the baseline 31 is permanently set on the bed surface, so there is no problem of loss or uncalibration, and it is always available. Since the adductor angle test is a routine item in the entire infant neurodevelopment assessment, the integration of the adductor angle auxiliary measurement mark 3 allows the test to be completed directly on the same bed 1 without having to move the infant, reducing the number of passive adjustments to the position, reducing the infant's discomfort and the probability of crying, and making the test results more reflective of the infant's basic muscle tone state rather than the increased muscle tone under stress.

[0047] In this embodiment, the dorsiflexion angle measuring component 4 is movably installed on the bed 1 and is used to measure the dorsiflexion angle value of the infant's foot.

[0048] Specifically, the dorsiflexion test is an important method for assessing the muscle tone of an infant's lower limbs, especially the posterior calf muscles, namely the gastrocnemius and soleus muscles, and is also a routine item in neonatal neurobehavioral assessment.

[0049] During the test, the operator holds the lower part of the infant's lower leg with one hand and holds the sole of the infant's foot with the other hand, pushing the foot forward towards the lower leg, causing the dorsum of the foot to flex towards the front of the lower leg. The angle between the dorsum of the foot and the front of the lower leg is the dorsiflexion angle. Abnormal increases or decreases in the dorsiflexion angle are highly correlated with damage to or developmental abnormalities of the central nervous system.

[0050] In this embodiment, the foot dorsiflexion angle measuring component 4 includes two measuring units 41, which correspond to the baby's left foot and right foot respectively, and are arranged symmetrically with the longitudinal central axis of the bed 1 as the reference. This design allows the feet on both sides to be measured separately or simultaneously for left-right comparison.

[0051] Specifically, each measuring unit 41 includes a support plate 411 and an angle scale 412. One end of the support plate 411 is rotatably connected to the bed frame 1 via a pivot. Specifically, the support plate 411 has two extreme positions: a measuring position where it flips upwards to form an angle with the bed surface during use, and a hidden position where it folds downwards to be flush with the bed surface during storage. The length of the support plate 411 ranges from 100 mm to 180 mm, and its width ranges from 60 mm to 100 mm. The surface of the support plate 411 is covered with a flexible, non-slip material, such as medical-grade silicone or polyurethane foam, to prevent the infant's feet from sliding on the support plate 411 during pressing.

[0052] An angle dial 412 is located on one side of the support plate 411, specifically at the end of the rotating shaft or on the side edge of the support plate 411. The measurement range of the angle dial 412 is from 0 degrees to 180 degrees, with a minimum division of 1 degree. The 0-degree position of the angle dial 412 corresponds to the position where the support plate 411 is parallel to the bed surface, i.e., in its retracted state, while 90 degrees corresponds to the position where the support plate 411 is perpendicular to the bed surface. Since the dorsiflexion angle of a normal infant's foot is typically between 60 and 90 degrees, this measurement range covers the needs of clinical examination.

[0053] When measuring the dorsiflexion angle, the operator first flips the corresponding measuring unit 41 from its storage position to its measuring position. Based on the infant's age and the expected dorsiflexion angle, the operator can pre-set the support plate 411 to a suitable starting angle, or maintain the support plate 411 at its current angle under the action of the rotating shaft damping. Then, the operator places the infant's foot on the support plate 411, ensuring the sole of the foot is in contact with the surface of the support plate 411. The operator holds the lower part of the infant's leg with one hand, and applies pushing pressure to the sole of the foot through the support plate 411 with the other hand, causing the dorsiflexion of the foot towards the front of the lower leg. During this process, the support plate 411 rotates around the rotating shaft under the pushing pressure. When the operator feels that the passive movement of the foot has reached its maximum range, the operator reads the angle scale value at this point; this value is the dorsiflexion angle.

[0054] When the dorsiflexion angle measuring component 4 is not in use, the support plate 411 is folded down to a position flush with the bed surface, so as not to interfere with other test items, and the infant can be placed on the bed surface for rest or daily care.

[0055] In this embodiment, the visual response testing component 5 is set on the bed 1 to assess the infant's visual function development level, including visual fixation ability, visual tracking ability, and the ability to distinguish and respond to different visual stimuli.

[0056] Specifically, the visual response testing component 5 includes a supine position testing component 51 and a prone position testing component 52, which correspond to the visual response assessment of infants in different body positions.

[0057] The supine position testing assembly 51 includes a first mounting member 511 and a first stimulus carrier member 512. The first stimulus carrier member 512 is mounted on the first mounting member 511 and is suspended directly above the infant's head.

[0058] When an infant is lying on their back, their natural gaze is upward. By suspending the first stimulus-bearing component 512 directly above their head, the infant can see the stimulus directly without turning their neck.

[0059] The first mounting component 511 is an arched frame that spans across the bed 1. A hanging point is provided at the midpoint of the span of the first mounting component 511. The first stimulant bearing component 512 is connected to the hanging point by a flexible rope or a rigid rod.

[0060] The first stimulus carrier 512 can be selected from various types to suit the visual development levels of infants at different ages. For newborns to two-month-old infants, whose visual contrast sensitivity is low at this stage, they react most strongly to high-contrast black and white patterns. Therefore, the first stimulus carrier 512 can be a black and white striped card, a checkerboard card, a bullseye pattern card, or a striped sphere. For infants older than two months, whose color vision is gradually developing, brightly colored spheres or cards such as red, yellow, and blue can be used.

[0061] The supine position testing assembly 51 also includes a first guide rail 513, which is mounted on the bed frame 1 and is used to store and unfold the first mounting component 511. Specifically, the first guide rail 513 is a groove, and the first mounting component 511 has a first damping shaft at each end. One first damping shaft is embedded at one end of the first guide rail 513, and the other first damping shaft is embedded at the other end of the first guide rail 513, allowing the first mounting component 511 to rotate around the first damping shaft as the rotation center. When the supine position testing assembly 51 is needed, the operator flips the first mounting component 511 upward from the first guide rail 513 so that it spans across the bed surface; when the test is completed and storage is required, the operator flips the first mounting component 511 downward so that it is fully embedded in the first guide rail 513. At this time, the upper surface of the first mounting component 511 is flush with the bed surface and does not occupy additional space.

[0062] The prone position testing assembly 52 includes a first magnetic suction member 521 and a second stimulus carrier member 522. The second stimulus carrier member 522 is mounted on the first magnetic suction member 521 and is movable on the bed surface to test the infant's visual tracking response ability in the prone position.

[0063] When an infant is in a prone position and can support their head, their field of vision expands significantly, and their visual exploration behavior becomes more proactive. Visual tracking tests at this time can assess the infant's visual attention and target tracking ability.

[0064] The second stimulus carrier component 522 includes a second magnetic component 5221 and a black and white card 5222. The black and white card 5222 and the second magnetic component 5221 are connected by a connecting rope. The second magnetic component 5221 and the first magnetic component 521 are magnetically connected. The connecting rope is a flexible rope with a length between 50 mm and 150 mm, which allows the black and white card 5222 to produce a certain swinging and delayed following effect when it moves with the second magnetic component 5221.

[0065] The 5222 black and white cards are printed with high-contrast black and white patterns, such as stripes, checkerboards, and concentric circles. These patterns are standard stimulation materials for assessing infants' visual function. The 5222 cards can be printed on both sides, with one side featuring fine stripes of high spatial frequency and the other side featuring coarse stripes of low spatial frequency. Operators can also change the cards with different patterns according to the infant's age and responsiveness to achieve graded assessment.

[0066] In order to achieve smooth and controllable movement of the second stimulus carrier 522 on the bed surface, the prone test assembly 52 also includes a second guide rail 523 and a drive assembly 524.

[0067] The second guide rail 523 is disposed on the bed body 1, and at least a portion of the first magnetic attraction member 521 is located within the second guide rail 523. The movement trajectory of the first magnetic attraction member 521 is constrained to move along the extension direction of the second guide rail 523.

[0068] The drive assembly 524 serves as a power source, driving the first magnetic attraction component 521 to move along the second guide rail 523. The drive assembly 524 includes a mounting base 5241, a drive motor 5242, a first pulley 5243, a second pulley 5244, a transmission belt 5245, and a swing arm 5246. The mounting base 5241 is fixedly connected to the bed 1, providing a mounting foundation for other drive components. The drive motor 5242 is mounted on the mounting base 5241. The drive motor 5242 is preferably a stepper motor or a DC geared motor. Stepper motors can precisely control the rotation angle and speed, making them suitable for visual tracking tests requiring uniform motion; DC geared motors are lower in cost and can achieve stepless speed regulation through voltage adjustment. The first pulley 5243 is mounted on the output end of the drive motor 5242 and rotates synchronously with the motor shaft. The second pulley 5244 is mounted on the mounting base 5241, maintaining a certain distance from the first pulley 5243, and the two are connected by the transmission belt 5245. The transmission belt 5245 is a synchronous belt or a V-belt. One end of the swing arm 5246 is connected to the second pulley 5244, and the other end of the swing arm 5246 is connected to the first magnetic attraction component 521. The swing arm 5246 converts the rotational motion of the second pulley 5244 into the circular motion of the first magnetic attraction component 521.

[0069] During the operation of the drive assembly 524, the drive motor 5242 receives a control signal and begins to rotate, driving the first pulley 5243 to rotate. Power is then transmitted to the second pulley 5244 via the transmission belt 5245. The second pulley 5244 drives the swing arm 5246 to swing around its center of rotation. The motion trajectory at the end of the swing arm 5246 causes the first magnetic suction component 521 to reciprocate along the second guide rail 523. This motion is then magnetically coupled to the second magnetic suction component 5221 and the black and white card 5222 it is dragging, causing the black and white card 5222 to move at a preset speed within the infant's field of vision. The operator can control the direction, speed, and running time of the drive motor 5242 to adjust the speed pattern of the stimulus movement, such as uniform movement, accelerated movement, decelerated movement, or intermittent jumping, to assess the infant's visual tracking ability for different movement patterns.

[0070] In the actual operation of the prone position test, the operator first places the infant on the bed in a prone position, gently adjusting the position of the infant's arms to support the upper body. If necessary, a small soft pillow can be placed under the infant's chest for assistance. Then, the operator places the second magnetic component 5221 with the black and white card 5222 on the bed in front of the infant, coupling it with the first magnetic component 521 under the bed using magnetic force. The drive motor 5242 is activated, causing the black and white card 5222 to move in front of the infant at a speed of approximately 50 to 150 millimeters per second. During the test, the center of the black and white card 5222 is about 20 cm away from the infant's eyes. The tester observes the infant's eye movements, head rotation, and whether target locking and tracking behavior occurs. The maximum range of movement the infant can track, the duration of tracking, and the ability to recapture the target after it is lost are recorded. Normally developing infants typically exhibit smooth eye-tracking or tracking behavior accompanied by head rotation at the appropriate age, while infants with impaired visual pathways or developmental delays may exhibit interrupted tracking, saccadic gait replacing smooth tracking, or no response at all.

[0071] The auditory response testing component 6 is set on the bed 1 and is used to assess the infant's auditory function.

[0072] Specifically, the auditory response testing component 6 includes a third stimulus carrier 61 and a third magnetic component 62. The third stimulus carrier 61 carries a sound-generating device and has a similar shape and size to the second stimulus carrier 522, but the content carried is replaced by an auditory stimulus instead of a visual stimulus. The auditory stimulus can be a small electronic sound generator capable of emitting sounds of different frequencies, intensities, and timbres, such as white noise, pure tones, speech, or music. The third stimulus carrier 61 can also be a bell.

[0073] The third magnetic attraction component 62 and the third stimulus carrier component 61 are connected by a connecting rope of the same material and length as the connecting rope in the visual response test assembly 5. The third magnetic attraction component 62 is magnetically connected to the first magnetic attraction component 521 in the prone position test assembly 52.

[0074] When switching from visual to auditory testing, the operator removes the second magnetic component 5221 from the bed surface and places the third magnetic component 62 on the bed surface at the position corresponding to the first magnetic component 521, using magnetic force to attract them together. Subsequently, the movement of the drive motor 5242 is coupled to the third magnetic component 62 via the first magnetic component 521, which in turn moves the third stimulus-bearing component 61 on the bed surface via a connecting rope, allowing the sound stimulus source to move in space.

[0075] In the specific operation of the auditory stimulus response test, the operator first couples the third magnetic component 62 to the first magnetic component 521, and then starts the drive motor 5242. The sound source is outside the infant's field of vision to ensure that the infant cannot see the sound source. In this embodiment, the sound source can be set at three fixed points: directly above the infant when the infant is in a supine position, to the infant's left, and to the infant's right. The operator observes whether the infant exhibits an auditory orientation response, including behavioral indicators such as stopping the current activity, turning the eyes toward the sound source, turning the head toward the sound source, and changes in breathing rhythm. If the infant exhibits a clear turning behavior, the tester records the accuracy of the turning, i.e., whether the infant is aligned with the sound source, the latency of the turning, and the duration of the gaze after the turning.

[0076] In summary, the multifunctional infant examination bed proposed in this invention includes a bed body 1, a length measuring component 2, a dorsiflexion angle measuring component 4, a visual response testing component 5, and an auditory response testing component 6. The bed body 1 has a bed surface; the length measuring component 2 is disposed on the bed body 1 and is used to measure the infant's length; the adductor angle auxiliary measurement marker 3 is disposed on the bed surface and is used to provide a reference benchmark for limb placement when testing the infant's adductor angle and to measure the infant's adductor angle; the dorsiflexion angle measuring component 4 is movably mounted on the bed body 1 and is used to measure the dorsiflexion angle value of the infant's foot; the visual response testing component 5 is disposed on the bed body 1 and includes a supine position testing component 51 and a prone position testing component 52. The supine position testing component 51 includes a first mounting component 511 and a first stimulus bearing component 512, and the first stimulus... The support member 512 is mounted on the first mounting member 511, and the first stimulus support member 512 is suspended directly above the infant's head; the prone position test assembly 52 includes a first magnetic suction member 521 and a second stimulus support member 522, the second stimulus support member 522 is mounted on the first magnetic suction member 521, and the second stimulus support member 522 can move on the bed surface to test the infant's visual tracking response ability in the prone position; the auditory response test assembly 6 is set on the bed 1; wherein, the auditory response test assembly 6 includes a third stimulus support member 61 and a third magnetic suction member 62, the third stimulus support member 61 is used to test the infant's auditory response ability in the prone position; it is connected to the third stimulus support member 61 by a connecting rope, and the third magnetic suction member 62 is magnetically connected to the first magnetic suction member 521. This design integrates length measurement, adductor angle measurement, dorsiflexion angle measurement, visual response testing in two positions, and auditory response testing onto a single bed. This reduces the frequency of tool changes and repositioning during the examination. Examiners can complete multiple assessments of the infant on one bed in the order of examination, reducing the cumulative stress caused to the infant by repeated moving and changing of tools. This allows the infant to complete the assessment in a relatively stable environment, thereby obtaining clinical data that closely approximates their true neuromotor development level and improving examination efficiency.

[0077] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A multifunctional examination bed for infants, characterized in that, include: The bed frame has a bed surface; A length measuring component, installed on the bed, is used to measure the infant's length; An adductor angle auxiliary measurement marker is set on the bed surface to provide a reference for limb positioning when testing the infant's adductor angle and to measure the infant's adductor angle; A foot dorsiflexion angle measuring component is movably mounted on the bed and is used to measure the dorsiflexion angle value of an infant's foot. A visual response testing component is mounted on the bed, and the visual response testing component includes: A supine position testing component, comprising a first mounting component and a first stimulus-bearing component, wherein the first stimulus-bearing component is mounted on the first mounting component and is suspended directly above the infant's head; A prone position testing component includes a first magnetic component and a second stimulus-bearing component. The second stimulus-bearing component is mounted on the first magnetic component and can move on the bed surface to test the infant's visual tracking response ability in a prone position. An auditory response testing component is installed on the bed. The auditory response testing component includes: The third stimulus-bearing component is used to test an infant's auditory response in a prone position. The third magnetic component is connected to the third stimuli-carrying component via a connecting rope, and the third magnetic component and the first magnetic component are magnetically connected.

2. The multifunctional infant examination bed according to claim 1, characterized in that, The third stimulus-bearing component is a bell.

3. The multifunctional infant examination bed according to claim 2, characterized in that, The supine position testing component also includes: A first guide rail is disposed on the bed body. A first damping shaft is disposed at both ends of the first mounting member. One first damping shaft is embedded at one end of the first guide rail, and the other first damping shaft is embedded at the other end of the first guide rail, so that the first mounting member can be rotated to be housed in the first guide rail.

4. The multifunctional infant examination bed according to claim 3, characterized in that, The prone position testing component also includes: A second guide rail is provided on the bed body, and at least a portion of the first magnetic attraction component is located within the second guide rail; The driver component includes: The mounting base is connected to the bed body; A drive motor is mounted on the mounting base plate; The first pulley is installed at the output end of the drive motor; The second pulley is mounted on the mounting base plate; A drive belt is wound around the first pulley and the second pulley; A swing arm, one end of which is connected to the second pulley, and the other end of which is connected to the first magnetic attraction component.

5. The multifunctional infant examination bed according to claim 4, characterized in that, The second stimulus-bearing component includes: Second magnetic attraction component; A black and white card, wherein the black and white card and the second magnetic component are connected by a connecting rope; The second magnetic attraction component and the first magnetic attraction component are magnetically connected.

6. The multifunctional infant examination bed according to claim 5, characterized in that, The length measuring component includes: First baffle; The second baffle is disposed opposite to the first baffle. The first baffle and the second baffle both have a use state and a storage state. When in use, the first baffle and the second baffle are perpendicular to the bed surface. When in storage, the first baffle and the second baffle are laid flat on the bed surface. Length markings are arranged along the length of the bed and located between the first baffle and the second baffle.

7. The multifunctional infant examination bed according to claim 6, characterized in that, The auxiliary measurement markers for the adductor angle include: Multiple baselines are set on the bed surface to indicate the extent of extension of the infant's lower limbs.

8. The multifunctional infant examination bed according to claim 7, characterized in that, The dorsiflexion angle measuring component includes: Two measuring units, corresponding to the baby's left and right feet respectively, are arranged symmetrically with respect to the longitudinal central axis of the bed. Each of the measurement units includes: A support plate, one end of which is rotatably connected to the bed frame via a pivot, has a measuring position that can be flipped upwards to form a certain angle with the bed surface when in use, and a hidden position that can be folded downwards to be flush with the bed surface when stored. An angle scale is disposed on one side of the support plate to indicate the rotation angle of the support plate relative to the bed surface. The angle scale has a measurement range of 0 to 180 degrees and a minimum division value of 1 degree.

9. The multifunctional infant examination bed according to claim 8, characterized in that, The outer edge of the bed is provided with a protective fence, which is continuously laid along the outer perimeter of the bed and fixedly connected to the outer edge of the bed.

10. The multifunctional infant examination bed according to claim 9, characterized in that, The bottom bearing surface of the bed is provided with four vertical support legs; Each of the vertical support legs is equipped with a caster wheel at its lower end, the caster wheel being configured to allow the bed to move smoothly in any direction in the horizontal plane.

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