A diagnostic pillow and a control method thereof

Abstract

This invention proposes a diagnostic aid pillow and its control method. The pillow includes a pillow body, a data acquisition module, an interaction module, and a control system. The pillow body contains multiple independently adjustable height adjustment modules. The data acquisition module collects data on the patient's lying position, shoulder and back thickness, neck and shoulder stress, and neck and shoulder tension. The control system receives data transmitted from the interaction module and the data acquisition module, analyzes the patient's cervical spondylosis condition, and obtains suitable pillow parameters. This invention integrates four functions: cervical spondylosis auxiliary diagnosis, pillow height calculation, material recommendation, and closed-loop height adjustment. It serves as both a medical diagnostic aid and a tool suitable for cervical health management in ordinary households, combining medical assistance with everyday use, and is applicable to a wide range of scenarios.

Description

Technical Field

[0001] This invention belongs to the field of pillow technology, specifically relating to a pillow for auxiliary diagnosis and its control method. Background Technology

[0002] Cervical spondylosis is a disease based on degenerative pathological changes in the cervical spine. With changes in modern work habits (such as prolonged desk work and looking down at electronic devices), the incidence of cervical spondylosis is increasing year by year and showing a trend towards affecting younger people. During sleep, the pillow, as a key support for the neck, directly affects cervical spine health due to its height and material. Inappropriate pillow selection can worsen cervical spondylosis symptoms and even induce new cervical spine injuries. Pillows designed for auxiliary diagnostic purposes need to meet both clinical diagnostic needs in hospitals and daily home use, but current technology struggles to satisfy the core requirements of both scenarios.

[0003] Existing related technologies, such as the multifunctional smart pillow based on flexible sensors disclosed in CN202110567361.4, have core functions including sleep-related data monitoring, cervical spine massage, and height adjustment based on an airbag structure; and the adaptive height-adjustable pillow disclosed in CN201910092582.3, which uses pressure sensors to detect pressure data and achieve adaptive adjustment of the height of the head and neck support. The core functions of these patents are limited to "monitoring + height adjustment," lacking cervical spondylosis analysis capabilities. They cannot combine data such as the patient's physiological characteristics and cervical spine pathology to conduct preliminary analysis and assessment of cervical spondylosis, making it difficult to meet the needs of clinical auxiliary diagnosis in hospitals; nor can they recommend suitable pillow height and materials based on cervical spine condition, and personalized adaptation is not possible for home use.

[0004] To address the aforementioned technical problems, this invention proposes an auxiliary diagnostic pillow and its control method. By integrating multi-dimensional data to construct a comprehensive diagnostic algorithm, it enables preliminary analysis of cervical spondylosis and recommendation of pillow parameters, filling a gap in existing technology. Summary of the Invention

[0005] To address the technical problems existing in the prior art, the first aspect of the present invention is to provide a pillow for assisting diagnosis. The second aspect, based on the same inventive concept, also provides a control method for the aforementioned pillow for assisting diagnosis.

[0006] In this embodiment of the invention, a diagnostic aid pillow includes a pillow body, a data acquisition module, an interaction module, and a control system. The pillow body contains multiple independently adjustable height adjustment modules, with the enable terminals of these modules connected to the control system. The data acquisition module collects data on the patient's lying position, shoulder and back thickness, neck and shoulder stress, and neck and shoulder tension, and transmits this data to the control system. The interaction module receives cervical spine input data provided by the user and outputs diagnostic data. The control system receives data transmitted from the interaction module and the data acquisition module, analyzes the patient's cervical spondylosis condition, obtains suitable pillow parameters, and displays the analysis results and suitable pillow parameters through the interaction module.

[0007] The control method of this invention, based on the aforementioned auxiliary diagnostic pillow, includes the following steps: S1, acquiring cervical spine imaging data and neck length measurement data of the patient through an interactive module, and acquiring data on the patient's lying position, shoulder and back thickness, pillow-neck-shoulder force data, and neck and shoulder tension data through a data acquisition module; S2, preprocessing the acquired and collected data, extracting cervical spine imaging feature parameters, and calculating the average neck and shoulder tension. and the uniformity of force distribution in the neck and shoulder area. S3. Calculate the inherent risk coefficient of cervical spondylosis based on cervical length measurement data, cervical spine imaging characteristic parameters, lying position, shoulder and back thickness data, average tension in the neck and shoulders, and uniformity of force distribution in the occipital, neck, and shoulder areas. Based on the inherent risk factor of cervical spondylosis Determine the risk level of cervical spondylosis; S4, based on the inherent cervical spondylosis risk coefficient Combined with the patient's neck length Based on data on the lying position and the thickness of the shoulders and back, the appropriate pillow support height is calculated. and neck support height S5. The interactive module displays the risk level of cervical spondylosis, analysis results, and suitable pillow parameters.

[0008] Compared with the prior art, the advantages of the preferred technical solution of the present invention include:

[0009] 1. Most existing similar technologies can only achieve monitoring or adjustment functions independently, and diagnosis and pillow adaptation are not related. However, this invention integrates four functions: cervical spondylosis auxiliary diagnosis, pillow height calculation, material recommendation, and height closed-loop adjustment. It is not only a medical auxiliary diagnostic tool, but also suitable for cervical health management in ordinary families. It takes into account the value of medical assistance and daily use, and has a wide range of applicable scenarios.

[0010] 2. This invention integrates multi-source information such as physiological parameters (neck length), medical images (cervical spine X-ray), lying position, shoulder and back thickness data, and mechanical data (pillow-neck-shoulder force, neck and shoulder tension). At the same time, through the partitioned deployment of flexible pressure sensors and flexible tension sensors, it takes into account both the user's comfort and the accuracy of data collection, providing support for subsequent diagnostic analysis and pillow height parameter adaptation, and adapting to the requirements of hospital clinical diagnosis for data rigor and the needs of home use for comfort.

[0011] 3. This invention divides the pillow body into two support zones: the occipital region and the neck region. Each support zone has a built-in independent height adjustment module, which provides precise support for the head and neck based on the natural curvature of the cervical spine. By dynamically adjusting the height of the occipital and neck support zones, users with different cervical spine conditions can maintain the normal physiological curvature, reducing tension in the neck and shoulder muscles caused by compensation. This not only meets the support stability requirements of postoperative patients in hospitals but also improves cervical spine discomfort during sleep for home users, enhancing overall support comfort and effectiveness.

[0012] 4. The inherent cervical spondylosis risk coefficient calculation formula of this invention incorporates individual differences in neck length as a parameter, combined with preset standard values ​​for height segments ( , , By using the formula max[(parameter difference term), 0] to ensure that the risk assessment term is non-negative, a multi-dimensional cervical spondylosis risk coefficient calculation model of "pathological characteristics + mechanical state + individual physiology" is constructed. This model can quantitatively output the risk level of cervical spondylosis, and the assessment results are based on the patient's inherent cervical spine state, objectively reflecting the health status. This not only meets the needs of hospitals for quantitative indicators in clinical auxiliary diagnosis, but also allows family users to clearly understand their own cervical spine condition, providing a targeted basis for subsequent pillow selection.

[0013] 5. The formula for the pillow support height in this invention incorporates neck length L and back thickness / shoulder width. The system incorporates three core parameters: inherent cervical spondylosis risk factor R, neck length, and a combination of back thickness / shoulder width. These parameters are designed to match the physiological structural baselines of users with different body types. Back thickness / shoulder width compensates for differences in the baseline caused by shoulder pad height, preventing excessively high or low occipital support due to variations in back thickness / shoulder width despite similar neck lengths. Furthermore, the inclusion of the inherent cervical spondylosis risk factor R allows for targeted adjustment of occipital height to suit specific cervical spine health conditions. For example, high-risk users can adjust the occipital height using... The device provides slightly higher occipital support, relieving cervical spine pressure. The reasonable allocation of weighting coefficients in the formula ensures both the core influence of neck length and the adaptation needs of back thickness. The calculation results take into account individual physiological differences and pathological conditions, making the occipital support both conform to body shape characteristics and help improve cervical spine discomfort, suitable for both precise rehabilitation in hospitals and daily sleep at home.

[0014] 6. The neck support height formula of this invention uses "body type adaptation + pathological adaptation" as its core logic to achieve personalized and accurate calculation of neck support height. Neck length L and back thickness / shoulder width are used as the formulas. The synergistic effect ensures that the support height matches the user's body shape; for example, for users with thicker backs, through... This raises the neck support benchmark, preventing the cervical spine from being in a reverse bending position due to shoulder elevation; and ( The direct correlation between the item and the pathological deviation of the cervical spine's physiological curvature—the closer the physiological curvature is to normal ( The closer to 1, the smaller this contribution, and the more closely it conforms to normal support needs; the more severe the straightening of the physiological curvature ( The smaller the value, the greater the contribution, helping to restore the natural curvature of the cervical spine by additionally increasing the neck support height. The formula takes into account the impact of body shape differences on the support benchmark and the support strength requirements of pathological conditions. The calculated neck support height can maintain the physiological curvature of the cervical spine while reducing compensatory tension in the neck and shoulder muscles. It can accurately meet the support stability needs of postoperative rehabilitation patients in hospitals and the cervical comfort needs of home users, improving the targeting and effectiveness of the support.

[0015] 7. This invention adopts a closed-loop automatic adjustment process of "adjustment-collection-verification-correction". It clearly defines the inherent cervical spondylosis risk coefficient as the diagnostic benchmark, and the dynamic cervical spondylosis risk coefficient calculated in the subsequent adjustment process is used as the basis for pillow fit verification. Through multiple dynamic optimizations, it ensures that the final pillow fit height corresponds to the lowest dynamic cervical spondylosis risk and the most uniform force distribution on the neck and shoulders. This solves the problem of pillow fit deviation caused by changes in mechanical parameters after height adjustment. At the same time, it eliminates the need for users to manually and repeatedly adjust the pillow height, thereby improving the efficiency of diagnosis and treatment in hospital settings and the convenience of use in home settings. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the auxiliary diagnostic pillow in Example 1.

[0017] Figure 2 This is a schematic diagram of the structure of the pillow used for auxiliary diagnosis in Example 2.

[0018] Figure 3 This is a flowchart of the control method for the auxiliary diagnostic pillow in Example 3.

[0019] The reference numerals in the accompanying drawings include: pillow body 10, pillow support area 11, neck support area 12, shoulder transition area 13, data acquisition module 20, flexible pressure sensor 21, flexible tension sensor 22, interaction module 30, control system 40, height adjustment module 50, pillow support push rod assembly 51, neck support push rod assembly 52, air chamber unit 53, pipeline 54, air pump 55, and height sensor 56. Detailed Implementation

[0020] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0021] Example 1

[0022] This embodiment provides a pillow for assisting diagnosis, such as... Figure 1 As shown, in a preferred embodiment, the auxiliary diagnostic pillow includes a pillow body 10, a data acquisition module 20, an interaction module 30, and a control system 40.

[0023] The pillow body 10 contains multiple independently adjustable height adjustment modules 50. The enabling end of each height adjustment module 50 is connected to a control system 40, which controls the operation of the height adjustment modules 50 to adjust the height of different areas of the pillow body 10, including the independent height adjustment of the pillow support area 11 and the neck support area 12. Specifically, the height adjustment module 50 includes a pillow support push rod assembly 51 located below the pillow support area 11 and a neck support push rod assembly 52 located below the neck support area 12. The pillow support push rod assembly 51 preferably includes three independently controlled electric push rods, evenly distributed along the head width direction (left-right direction); the neck support push rod assembly 52 includes two independently controlled electric push rods, symmetrically arranged on both sides of the neck midline. The fixed end of each electric push rod is installed on the pillow base, and the telescopic end is correspondingly connected and fixed to the pillow support area 11 and the neck support area 12. The height of the pillow support area 11 and the neck support area 12 is independently adjusted by controlling the telescopic stroke of the electric push rods. The height values ​​of the occipital support area 11 and the neck support area 12 can be indirectly obtained by detecting the extension length of the push rod through a position sensor (such as a rotary encoder) built into the push rod. This height detection method is a mature technology in the field and will not be described in detail here.

[0024] Preferably, the portion of the pillow body 10 corresponding to the pillow support area 11 and the neck support area 12 adopts an integrated flexible composite structure. This integrated flexible composite structure includes, from bottom to top: a high-density support layer, an intermediate transition layer with gradually varying mechanical properties, and a skin-friendly comfort layer on the surface. The intermediate transition layer is designed to have a high modulus at positions perpendicular to the axes of each electric push rod to ensure effective transmission of support force. Within the pillow support push rod assembly 51, between the push rods in the neck support push rod assembly 52, and at the junction of the two support areas, the modulus gradient decreases, and it possesses good lateral shear deformation capability. This allows asynchronous height changes within and between the pillow support area 11 and the neck support area 12 to automatically adapt and smoothly transition through the flexible deformation of the material itself. This ensures that the pillow support surface always presents an ergonomically continuous curved surface, completely avoiding any hard steps or sharp edges that may result from mechanical adjustments.

[0025] The data acquisition module 20 is used to collect the patient's lying position, shoulder and back thickness data, real-time force data of the neck and shoulder area, and neck and shoulder muscle tension data, and transmits them to the control system 40 through the wireless communication module. Specifically, a low-power Bluetooth module is used to achieve stable data transmission.

[0026] The data acquisition module 20 includes a pressure acquisition unit, a tension acquisition unit, a lying position acquisition unit, and a shoulder and back thickness data acquisition unit.

[0027] The pressure acquisition unit includes several flexible pressure sensors 21 distributed in the occipital support area 11, neck support area 12, and shoulder transition area 13 of the pillow body 10. These flexible pressure sensors 21 form a pressure sensing array. Preferably, the flexible pressure sensors 21 are thin-film sensors based on polyvinylidene fluoride (PVDF) or flexible piezoresistive material. They are connected to a signal conditioning circuit via a flexible printed circuit and directly attached to the contact surface of the pillow body 10 for real-time acquisition of pressure distribution and dynamic changes in each area. The tension acquisition unit includes several flexible tension sensors 22 attached to the surface of the pillow body 10, corresponding to the neck and shoulder areas, for detecting neck and shoulder tension. These flexible tension sensors 22 form a tension sensing array. The flexible tension sensors 22 use flexible dry electrode sheets made of silver / silver chloride biocompatible material and integrate weak signal amplification and filtering circuits for non-invasive acquisition of electromyographic signals from the skin surface. Based on time-domain and frequency-domain feature analysis, tension indicators reflecting muscle tension are extracted. This is existing technology and will not be elaborated upon here.

[0028] The lying position data acquisition unit includes an accelerometer to detect the head tilt angle. When the tilt angle is less than a threshold, the person is lying flat; when the tilt angle is greater than the threshold, the person is lying on their side. This is existing technology and will not be described in detail here. The shoulder and back thickness data acquisition unit includes a distance sensor located at the bottom front of the pillow. The distance sensor collects the thickness of the soft tissue in the back or the soft tissue in the shoulder on the contact side. For example, a miniature ultrasonic distance sensor can be used, such as the HC-SR04 or JSN-SR04T-2.0. This is existing technology and will not be described in detail here.

[0029] The interaction module 30 is used to receive cervical spine input data provided by the user and output diagnostic data. The interaction module 30 enables bidirectional data interaction between the user and the device. Preferably, the interaction module 30 uses an external touchscreen display (or a keyboard-equipped display) connected wirelessly as the human-computer interaction interface. When inputting data, the user inputs the neck length L through the touchscreen display; cervical spine imaging data (such as digitized cervical spine X-ray data) is obtained by connecting to the hospital's imaging system via a data interface, or by taking photos or scanning; the touchscreen display prompts the user to place their head and neck in the corresponding support area. When outputting diagnostic data, the touchscreen display shows the cervical spondylosis risk level (including low risk, medium risk, and high risk), analysis results (including cervical spine physiological curvature, neck and shoulder tension, and presence or absence of cervical spondylosis symptoms), and suitable pillow parameters (including occipital support area height, neck support area height, and recommended pillow material).

[0030] The control system 40 receives cervical spine imaging data and user input parameters from the interaction module 30. Simultaneously, it receives real-time data from the data acquisition module 20, including the patient's lying position (flat, side-lying), shoulder and back thickness data (width from back to shoulder when flat, width from shoulder to acromion when side-lying), neck and shoulder pressure data, and neck and shoulder muscle tension data. Through a built-in analysis algorithm, it comprehensively assesses the patient's cervical spine condition and calculates suitable pillow support parameters. Finally, the analysis results and recommended parameters are fed back to the user through the interaction module 30. This control system 40 uses an embedded processor as its core, integrating a hardware architecture including a multi-channel analog-to-digital converter, a communication interface unit, and an algorithm processing unit. Its specific circuit implementation and communication protocol are mature technologies in this field and will not be elaborated upon here.

[0031] Example 2

[0032] The structural principle of this embodiment is basically the same as that of Embodiment 1, based on the same inventive concept. The difference lies in the implementation method of the height adjustment module 50. For example... Figure 2As shown, in this embodiment, the height adjustment module 50 includes two independent air chamber units 53 corresponding to the pillow support area 11 and the neck support area 12. The air chamber units 53 are implemented using an inflatable airbag structure. Each air chamber unit 53 is connected to an air pump 55 (a miniature air pump installed inside the pillow body 10) through an independent pipe 54. Each pipe 54 is equipped with a solenoid valve controlled by the control system 40 to achieve independent adjustment of the air pressure and height of each air chamber unit 53. Each air chamber unit 53 is correspondingly equipped with a height sensor 56 to monitor the height change of the corresponding air chamber unit 53. For example, the height sensor 56 is installed at the bottom of the pillow body 10, and its probe extends into the corresponding air chamber unit 53. By detecting the position change of the top of the air chamber unit 53, the actual height data of the pillow support area 11 and the neck support area 12 can be obtained. The height sensor 56 corresponding to the occipital region is used to monitor the core height of the occipital support area 11, which is the height of the lowest position of the occipital support area 11; the height sensor 56 corresponding to the neck is used to monitor the core height of the neck support area 12, which is the height of the highest position of the neck support area 12.

[0033] By incorporating multiple independently adjustable height adjustment modules 50, and particularly employing a structure of independently controlled air chamber units 51, the height of the pillow support area 11 and the neck support area 12 can be adjusted. This independently adjustable structure allows the pillow to adapt to the cervical curvature and individual anatomical differences of different users, thereby providing ergonomic and personalized mechanical support for the cervical spine and alleviating abnormal pressure distribution on the cervical spine caused by unsuitable pillow height.

[0034] It should be noted that when the user is lying down, the surface height of the pillow support area 11 and the neck support area 12 is directly related to the inflation height and deformation state of the internal air chamber unit 53; by monitoring the changes in the internal space height of the air chamber unit 53, the control system 40 can calculate the effective surface height of the corresponding support area under actual load.

[0035] Example 3

[0036] This embodiment provides a control method for a diagnostic aid pillow, implemented based on a diagnostic aid pillow from Embodiment 1 or Embodiment 2, such as... Figure 3 As shown, the control method includes the following steps:

[0037] S1. The patient rests their head on the pillow. The interactive module acquires the patient's cervical spine imaging data and cervical length measurement data. The data acquisition module collects the patient's lying position, shoulder and back thickness data, pillow-neck-shoulder force data, and neck and shoulder tension data. Depending on the patient's sleeping habits, the patient can adopt a supine or lateral lying position (including left and right side lying).

[0038] S2. Preprocess the acquired and collected data, extract cervical spine imaging feature parameters, and calculate the mean tension in the neck and shoulder. and the uniformity of force distribution in the neck and shoulder area. ;

[0039] S3. Calculate the risk coefficient of cervical spondylosis based on cervical spine imaging characteristics, lying position, shoulder and back thickness data, average tension in the neck and shoulders, and uniformity of force distribution in the occipital, neck, and shoulder areas. According to the risk coefficient of cervical spondylosis Determine the risk level of cervical spondylosis;

[0040] S4. Based on the risk factor of cervical spondylosis Combined with the patient's neck length Based on data on the lying position and the thickness of the shoulders and back, the appropriate pillow support height is calculated. and neck support height ;

[0041] S5. The interactive module displays the risk level of cervical spondylosis, analysis results, and suitable pillow parameters.

[0042] It should be noted that, to ensure consistency in measurement benchmarks among different patients or the same patient at different times, in the initial state of step S1, both the neck support height and the occipital support height of the pillow body adopt a uniform preset initial support height. To eliminate individual differences and the influence of posture, the initial support height is set according to the differences in lying posture, and the core relationship of "initial neck support height > initial occipital support height" is always maintained to ensure the inherent risk factor of cervical spondylosis. Under the same baseline conditions, the specific values ​​and adaptation logic are as follows:

[0043] When lying flat, the initial support height of the occiput is 6.5cm (±0.5cm), which adapts to the weight distribution when the head is naturally placed, ensuring the versatility of the initial occiput support. It also provides more support space for the neck, preventing the neck from being unsupported due to an excessively high occiput. The initial support height for the neck is 7.5cm (±0.5cm), 1cm higher than the initial occiput support height. This conforms to the physiological lordosis curve of the cervical spine, meeting the need for a higher support height than the head when the neck is naturally relaxed while lying flat. This effectively supports the neck to maintain a neutral position, preventing muscle tension caused by the neck being unsupported, and considering the initial comfort of healthy individuals and those with mild cervical spondylosis. The initial occiput and neck support heights, when lying flat, cover the initial measurement needs of most adults (neck length 14-17cm, back thickness 4-6cm), avoiding muscle tension caused by excessive height.

[0044] When lying on your side, the initial neck support height is 9.5cm (±0.5cm), 3cm higher than when lying flat. This height is adjusted to match the height of the shoulder pad on the side of the head (4-8cm) to prevent the head from sinking due to the elevated shoulder and to maintain a horizontal connection between the head and torso. The initial neck support height is 10.5cm (±0.5cm), 1cm higher than the occipital region. This height is adjusted to match the lateral force characteristics of the cervical spine when lying on your side, supporting the neck to prevent tilting towards the side of contact, maintaining a neutral cervical spine position, and ensuring the accuracy of parameter measurements in the side-lying position. The 3cm height difference offsets the effect of the elevated shoulder, ensuring the head and torso are horizontal and avoiding lateral force on the cervical spine.

[0045] In step S3 of this invention, the method for calculating the inherent cervical spondylosis risk coefficient based on cervical spine imaging characteristic parameters, lying position, shoulder and back thickness data, average neck and shoulder tension, and uniformity of force distribution in the occipital-neck-shoulder region is as follows:

[0046]

[0047] in, The inherent cervical spondylosis risk coefficient is used to assess the severity of cervical spondylosis in patients. It is dimensionless and ranges from 0 to 1. The higher the value, the higher the risk and severity of cervical spondylosis. It should be noted that the pillow height is the same for all users when calculating the inherent cervical spondylosis risk coefficient to obtain the inherent cervical spondylosis risk coefficient based on the same standard.

[0048] The actual physiological curvature value of the patient's cervical spine, that is, the arc value of the line connecting the cervical vertebrae, in radians (rad), is extracted by the control system using image recognition algorithms (such as edge detection algorithms) after acquiring the patient's cervical spine X-ray image data.

[0049] The standard value for the physiological curvature of the cervical spine in a normal human body is expressed in radians (rad). Based on statistical data from human anatomy, it is preset in the control system and ranges from 0.2618 to 0.3491 rad (corresponding to 15° to 20°). Preferably, it is preset according to height segments, with slightly higher standard values ​​for cervical spine curvature for taller individuals. For example, for height < 160cm: C0 = 0.2618–0.2967 rad (15°–17°), taking the middle value; for height 160cm ≤ height < 180cm: C0 = 0.2967–0.3220 rad (17°–18.5°), taking the middle value; for height ≥ 180cm: C0 = 0.3220–0.3491 rad (18.5°–20°), taking the middle value.

[0050] The mean width of the intervertebral space in the patient's cervical spine, i.e., the average width of the intervertebral spaces from C3 to C7, is obtained by the control system after obtaining the patient's cervical spine X-ray image data through the interactive module, and the control system uses the image measurement algorithm to extract the width of each intervertebral space and calculate the mean value.

[0051] The standard average width of the intervertebral space in the cervical spine of a normal human body is measured in mm. It is preset in the control system based on human anatomical standard data and is set to 3–5 mm. It is preferably preset according to height segmentation. The taller the person, the larger the vertebral body size and the higher the standard value of the intervertebral space width. It is preset in segments based on clinical imaging statistics. For example, height < 160cm: D0 = 3–3.5 mm; 160cm ≤ height < 180cm: D0 = 3.5–4.5 mm; height ≥ 180cm: D0 = 4.5–5 mm.

[0052] Identify patient lying positions, distinguishing between supine, left lateral, and right lateral positions. =0 indicates lying flat. =1 indicates lying on your left side. =2 indicates lying on the right side. The head tilt angle is detected by the lying position acquisition unit (accelerometer): the absolute value of the tilt angle <15° (threshold can be calibrated) indicates lying flat (S=0); the tilt angle >15° indicates lying on the side, and the left and right sides are determined by the gravity sensor (left side lying S=1, right side lying S=2).

[0053] The mean tension of the neck and shoulders in the corresponding posture of the patient is the average value of the tension data collected by several flexible tension sensors, in Newtons (N). Invalid data with a detection value of zero are first removed, and then the mean value is calculated by the data processing module after filtering the filtered valid tension data (using the mean filtering algorithm). The tension of the entire back of the neck is collected when lying flat (S=0); the tension of the neck and shoulders on the contact side (left / right) is collected when lying on the side (S=1 / 2), and the data on the non-contact side is removed.

[0054] This represents the standard tension value for the neck and shoulders in a relaxed posture in a normal human body, measured in Newtons (N). It is preset in the control system and is based on statistical analysis of neck and shoulder tension test data from a large number of healthy individuals. The value is 5–8 N when lying flat and 7–10 N when lying on one's side. The standard tension value is slightly higher when lying on one's side because the muscles need to maintain balance. The value is slightly adjusted according to height segment.

[0055] This measurement measures the uniformity of force distribution across the occiput, neck, and shoulders in the patient's corresponding posture. It is dimensionless and ranges from 0 to 1; values ​​closer to 1 indicate more uniform force distribution. Lying supine (S=0): force is collected from the occiput, neck, and the transition area between the shoulders. Lying on one's side (S=1 / 2): force is collected only from the occiput, neck, and the shoulder on the contact side; force on the non-contact side <0.5N is considered invalid and discarded. Force data for the occiput, neck, and shoulders are collected by several flexible pressure sensors in the pressure acquisition unit. , ,..., First, invalid data with a detection value of zero and shoulder contact force less than a preset threshold (0.5 N) are removed. Then, based on the filtered valid data, each force data and the average force value are calculated. The deviation coefficient is finally obtained by subtracting the deviation coefficient from 1. The specific calculation method is as follows: The square root acts on the entire molecule and represents the root mean square (standard deviation) of the deviation of each effective force data from the average value.

[0056] These are weighting coefficients used to adjust the degree of influence of each parameter on the risk coefficient of cervical spondylosis. Based on a large amount of clinical cervical spondylosis case data, it was optimized through regression analysis algorithms, for example, the preset value was... =0.45、 =0.3、 =0.125、 =0.125;

[0057] `max[(parameter difference term), 0]` is used to ensure that each contribution is non-negative, avoiding negative risk amplification from normal parameters.

[0058] Among them, the formula for calculating the risk coefficient of inherent cervical spondylosis includes... This refers to the cervical spine physiological curvature item, which represents the percentage of risk associated with the loss of cervical lordosis. It only contributes to the risk when the curvature is lost; this item is 0 for normal curvature. This aligns with the core pathology of cervical spondylosis in clinical practice (the physiological curvature of the cervical spine is a physiological lordosis, determined by the anatomical structure of the vertebral bodies, intervertebral discs, and ligaments; the core pathological feature of cervical spondylosis is the straightening, disappearance, or even reverse curvature of the cervical spine physiological curvature). This is an important imaging indicator for the clinical diagnosis of cervical spondylosis, and also a core cause of neck and shoulder muscle tension and nerve compression. Therefore, risk assessment only needs to focus on the single abnormal scenario of cervical curvature loss. The loss of cervical physiological curvature is the core cause of cervical spondylosis, directly determining the physiological force line of the cervical spine. It has the highest priority in clinical diagnosis, and therefore accounts for nearly half of the weight.

[0059] For the intervertebral space width item, only "" is retained. < Risk contribution of "(intervertebral space stenosis)" ≥ (Normal / Excessively Wide) poses no risk and aligns with clinical logic. Narrowing of the intervertebral space is directly related to intervertebral disc herniation and nerve root compression, and is an important marker of cervical spondylosis progression, second only to loss of curvature in its pathological contribution.

[0060] For the neck and shoulder tension item, only " > The risk contribution of "(muscle tension)" ≤ (Relaxed) Risk-free and in line with common physiological knowledge. Increased tension in the neck and shoulder muscles is a compensatory manifestation caused by loss of curvature / narrowing of the intervertebral space, which is a secondary influencing factor and has a lower weight than structural indicators.

[0061] The term represents the uniformity of force distribution; the closer the uniformity of force distribution P is to 1, the lower the risk. Uneven force distribution can aggravate cervical spine pathological damage, but it is not the intrinsic cause of cervical spondylosis. It is a mechanical auxiliary indicator, along with muscle tension, and both are weighted equally to ensure a balanced assessment. In step S4 of this invention, based on the inherent cervical spondylosis risk coefficient... Combined with the patient's neck length Based on data on the lying position and the thickness of the shoulders and back, the appropriate pillow support height is calculated. and neck support height The specific method is as follows:

[0062] Pillow support height:

[0063]

[0064] Neck support height:

[0065]

[0066] in, The pillow support height is the lowest point of the pillow support area when the user rests their head on the pillow body, in cm. It is calculated using the formula above and can be fed back by the height sensor corresponding to the pillow support area. The neck support height is the highest point of the neck support area when the user rests their head on the pillow, measured in centimeters. It is calculated using the formula described above and can be fed back by a height sensor corresponding to the neck support area. It should be noted that although different neck lengths will result in variations in the highest point of the neck pressing against the neck support area and the lowest point of the head pressing against the pillow support area, the differences are small (usually within 2cm) and remain within the middle support area, having a negligible impact on the height value.

[0067] This is the neck length weighting coefficient, used to characterize the degree of linear correlation between neck length and support height, and it remains the same for both side-lying and supine positions. Dimensionless, derived from ergonomic data statistics, preset values, lying flat. 0.2, lying flat = lying on your side 0.35;

[0068] To support the benchmark weighting coefficients, used to characterize The weighting of the influence of support height is higher when lying on your side than when lying flat. Dimensionless, based on ergonomic statistical data, preset values, lying flat =0.3, lying on one's side 0.35, lying flat =0.35, lying on one's side 0.4.

[0069] The occipital posture correction coefficient adjusts the correction magnitude of the inherent risk coefficient to the occipital height under different postures. It is dimensionless and based on ergonomic experimental presets: lying flat. =1.0, lying on one's side = 1.2 When lying on your side, the pillow needs to provide stronger support to match the width of your shoulders, and the correction range should be increased; This is a neck posture correction coefficient, which adjusts the degree to which the physiological curvature of the cervical spine corrects for neck height under different postures. It is dimensionless and based on ergonomic experimental presets: lying flat. =1.0, lying on one's side =0.8, the sensitivity of the cervical spine's physiological curvature to adapt is reduced when lying on the side, the correction range is reduced, and excessive support is avoided;

[0070] The length of the patient's neck is the straight-line distance from the angle of the mandible to the spinous process of the seventh cervical vertebra, in centimeters. It is measured by the user and then input through the interactive module.

[0071] The reference thickness for supine support / reference shoulder width for lateral support is measured in cm. When supine, it is the vertical distance from the patient's back to the highest point of the shoulder; when lateral, it is the vertical distance from the bed surface to the acromion on the side of the patient's shoulder. To obtain the reference thickness for supine support, the patient lies supine on a firm bed with their cervical spine naturally relaxed; this is the vertical distance from the skin on the back (midpoint of the scapula) to the highest point of the shoulder. To obtain the reference shoulder width for lateral support, the patient lies on their side on a firm bed with their spine in a neutral position; this is the vertical distance from the acromion on the side of the shoulder (the highest bony point of the shoulder) to the bed surface. The specific reference shoulder width for lateral support can be automatically collected by a distance sensor (such as an ultrasonic sensor) built into the pillow (probe pointing vertically downwards, average of 5 samples filtered).

[0072] When lying flat, This is the vertical distance from the skin of the back (midpoint of the scapula) to the highest point of the shoulder (acromion). This distance includes the thickness of three structural layers: back soft tissue thickness (muscle + fat): 2-4 cm; shoulder skeletal support height (scapula + lateral clavicle): 3-5 cm; shoulder soft tissue thickness (muscle and fat around the acromion): 1-2 cm. After these three layers are stacked, for a person of average build... Approximately 8-9cm, 10-11cm for those with a thicker build, and 6-7cm for those with a thinner build. The range of values ​​is reasonable and meets the numerical requirements of the "support reference parameters".

[0073] When lying on your side, The vertical distance to the acromion directly determines the baseline height of the head when lying on one's side. The thickness of the adult shoulder bone is about 3-5cm (the bony support of the acromion and scapula); the thickness of the shoulder soft tissue is about 2-4cm (even in thinner individuals, there is basic muscle coverage); when combined, the height (G) is about 8-10cm for thinner individuals, about 10-12cm for average-sized individuals, and about 12-14cm for robust individuals, which meets the numerical requirements of the "support baseline parameter".

[0074] This is the pillow height correction value, used to adjust the pillow support height according to the risk level of cervical spondylosis. The unit is cm. It is preset in the control system. The value is 2cm when lying flat and lying on the side. The higher the risk coefficient of cervical spondylosis, the closer the corrected pillow height is to the appropriate value.

[0075] This is the neck height correction value, used to adjust the neck support height according to the physiological curvature of the cervical spine. The unit is cm. It is preset in the control system. The value is 3cm when lying flat and on the side. The more the physiological curvature of the cervical spine deviates from the standard value, the better the corrected neck height can support the cervical spine to restore its normal curvature.

[0076] In step S3 of the present invention, based on the cervical spondylosis risk coefficient The method for determining the risk level of cervical spondylosis is as follows: the risk level of cervical spondylosis is divided into three levels:

[0077] Low risk ( <0.3): The physiological curvature of the cervical spine is basically normal, the intervertebral space is normal, the tension in the neck and shoulders is moderate, and there are no obvious symptoms of cervical spondylosis.

[0078] Medium risk (0.3≤ ≤0.6): Slight straightening of the cervical spine's physiological curvature or slight narrowing of the intervertebral space, high tension in the neck and shoulders, and mild symptoms of cervical spondylosis (such as neck pain).

[0079] High risk ( >0.6): The physiological curvature of the cervical spine is significantly straightened or reversed, the intervertebral space is significantly narrowed, the tension in the neck and shoulders is significantly high, and there are obvious symptoms of cervical spondylosis (such as numbness in the upper limbs and dizziness).

[0080] More preferably, the present invention further includes the following step: classifying cervical spondylosis risk levels... and the uniformity of force distribution in the patient's occiput, neck and shoulder areas (i.e., the aforementioned) To determine the appropriate pillow material, the specific method is as follows:

[0081] Low risk ( <0.3) and ≥0.8: Latex material is recommended. Latex material has good elasticity and breathability, which can ensure sleep comfort.

[0082] Medium risk (0.3≤ ≤0.6) or 0.6≤ <0.8: Memory foam material is recommended. Memory foam can conform to the contours of the human body to provide support, relieve local pressure concentration, and at the same time have a certain degree of support strength.

[0083] High risk ( >0.6) and <0.6: Carbon fiber reinforced memory foam is recommended. Carbon fiber reinforced memory foam has higher support strength, which can effectively maintain the physiological curvature of the cervical spine, while also having breathable and antibacterial properties.

[0084] In another preferred embodiment, the present invention further includes the following closed-loop pillow height adjustment step:

[0085] S41. The control system sends a control command to the height adjustment module, and the height adjustment module adjusts the headrest support height and neck support height to reach the initial adaptation height calculated in step S4. , ;

[0086] S42. Restart the data acquisition module to collect data on the force distribution and tension in the neck and shoulders at the current height, and calculate the uniformity of the force distribution in the neck and shoulders. and the average tension in the neck and shoulders Calculate the current dynamic risk factor for cervical spondylosis. ;

[0087] S43. Judgment Is it less than the inherent risk factor for cervical spondylosis? ,and Is it ≥0.8? If so, determine the current occipital support height. and neck support height Adjustment completes to achieve the optimal pillow height; if not, based on... and The difference is corrected to adapt to the height parameter. ), The correction coefficients of 0.2 and 0.3 are determined based on experimental or empirical settings. The process returns to step S41 for readjustment, and the dynamic cervical spondylosis risk coefficient is calculated sequentially. , ...until the conditions are met or the preset number of adjustments is reached (e.g., 3 times); if the preset number of adjustments is reached but the conditions are still not fully met, the adjustment will be performed with the lowest dynamic cervical spondylosis risk coefficient. The occipital support height and neck support height closest to 1 are taken as the optimal fitting height.

[0088] It should be noted that the inherent risk level of cervical spondylosis It is an objective assessment based on the patient's own cervical spine physiological state (physiological parameters, imaging data) and initial support state, reflecting the patient's inherent cervical spine health status; while , , This is a dynamic cervical spondylosis risk coefficient "under specific pillow height support," reflecting whether "the support state matches the patient's cervical spine." The two have different functions and should not be confused. Therefore, the baseline for determining the risk level of cervical spondylosis remains the inherent cervical spondylosis risk coefficient. (Baseline value without closed-loop adjustment). Example: Patient's inherent cervical spondylosis risk factor. =0.5 (medium risk), stemming from straightening of the cervical spine's physiological curvature and slight narrowing of the intervertebral space, which is an objective state of the cervical spine structure itself; after adjusting the pillow height, the dynamic risk coefficient of cervical spondylosis... =0.3 (low risk) only indicates that "the current support status can reduce the stress on the cervical spine", but the patient's core pathological parameters such as the physiological curvature of the cervical spine and the width of the intervertebral space have not changed, and the inherent risk level of cervical spondylosis is still medium risk.

[0089] The core requirement for recommending pillow materials is to match the patient's "inherent cervical spine condition" and "optimal support state." This means meeting the support strength requirements under pathological conditions while also adapting to the uniform force distribution requirements of the final support state. When recommending pillow materials, the inherent cervical spondylosis risk coefficient should be the core benchmark, combined with a closed-loop adjustment to achieve "minimum dynamic cervical spondylosis risk coefficient +..." The final support status corresponding to the closest value of "1" is determined comprehensively as follows:

[0090] Low risk (inherent cervical spondylosis risk factor) <0.3): Regardless of the dynamic cervical spondylosis risk factor after adjustment, latex material is the preferred choice; if after adjustment <0.8, a blend of latex and memory foam is recommended (to improve fit).

[0091] Medium risk (initial 0.3≤ ≤0.6): Memory foam material is the core recommended material; if the dynamic cervical spondylosis risk coefficient drops to <0.3 after adjustment and ≥0.8, memory foam material can be retained (to ensure support strength), with the additional note "low risk of dynamic cervical spondylosis after adaptation, balancing support and comfort";

[0092] High risk (initial) >0.6): Carbon fiber reinforced memory foam material must be recommended (to ensure strong support); if the dynamic risk coefficient drops to medium risk after adjustment and ≥0.7, still maintain carbon fiber reinforced memory foam material, do not downgrade recommended, to avoid insufficient support strength.

[0093] This invention minimizes the risk of dynamic cervical spondylosis after adjustment and The optimal pillow height is determined by the closest possible 1 point for both head and neck support. The initial width of the pillow along the shoulder direction is set at 45–55 cm, suitable for most body types. Larger users can extend the width to 60–65 cm using an expansion component. Considering the different height requirements for lying flat and on the side, two adaptation schemes can be adopted: one is to create two separate pillows for flat and side sleeping positions; the other is to design the pillow as a combination structure of a "central flat sleeping area + left and right side sleeping areas," with the left and right side sleeping areas symmetrically distributed on both sides of the flat sleeping area. The flat sleeping area provides head and neck support when lying flat, while the side sleeping areas accommodate side sleeping positions, thus meeting the support needs of different sleeping postures.

[0094] In another preferred embodiment of the present invention, a practical pillow can also be prepared based on the diagnostic aid pillow. This pillow includes the same height adjustment mechanism as the diagnostic aid pillow of the present invention, and also includes a lying position detection unit. The control system stores pre-stored height data of the neck and occipital region in side-lying and supine positions, measured by the diagnostic aid pillow. When the user lies down, the lying position detection unit detects the lying position and transmits it to the control system. The control system adjusts the height adjustment unit according to whether the user is lying on their side or supine, achieving the preset neck and occipital region heights.

[0095] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A pillow for assisting diagnosis, characterized in that, It includes the pillow body, data acquisition module, interaction module, and control system; The pillow body is equipped with multiple independently adjustable height adjustment modules, and the enable terminal of the height adjustment module is connected to the control system. The data acquisition module is used to collect data on the patient's lying position, shoulder and back thickness, neck and shoulder force, and neck and shoulder tension, and transmit them to the control system. The interactive module is used to receive patient cervical spine input data provided by the user and output diagnostic data. The control system receives input data transmitted from the interaction module and the data acquisition module, analyzes the patient's cervical spondylosis condition, obtains suitable pillow parameters, and displays the analysis results and suitable pillow parameters through the interaction module.

2. The pillow for assisting diagnosis according to claim 1, characterized in that, The height adjustment module includes a pillow support push rod group located below the pillow support area and a neck support push rod group located below the neck support area. The telescopic ends of the pillow support push rod group and the neck support push rod group are fixedly connected to the pillow support area and the neck support area, respectively. The height of the pillow support area and the neck support area can be independently adjusted by controlling the telescopic stroke of the pillow support push rod group and the neck support push rod group, respectively. Alternatively, the height adjustment module includes two air chamber units, which correspond to the occipital support area and the neck support area, respectively. Each air chamber unit is connected to an air pump through an independent pipeline to independently adjust the air pressure and height of each air chamber unit. Each air chamber unit is equipped with a height sensor to monitor the height of the corresponding air chamber unit.

3. The pillow for assisting diagnosis according to claim 1, characterized in that, The data acquisition module includes a pressure acquisition unit, a tension acquisition unit, a lying position acquisition unit, and a shoulder and back thickness data acquisition unit. The pressure acquisition unit includes several flexible pressure sensors distributed in the pillow body's occipital support area, neck support area, and shoulder transition area. The tension acquisition unit includes several flexible tension sensors distributed on the surface of the pillow body for detecting tension in the neck and shoulders; The lying position acquisition unit includes an accelerometer for detecting head tilt angle. When the tilt angle is less than a threshold, the person is lying flat; when the tilt angle is greater than the threshold, the person is lying on their side. The shoulder and back thickness data acquisition unit includes a distance sensor located at the bottom front of the pillow. The distance sensor acquires the thickness of the back soft tissue or the thickness of the shoulder soft tissue on the contact side.

4. A method for controlling a diagnostic pillow, implemented based on the diagnostic pillow according to any one of claims 1-3, characterized in that, Includes the following steps: S1. Obtain cervical spine imaging data and cervical length measurement data from the patient through the interactive module, and collect patient lying position, shoulder and back thickness data, force data on the neck and shoulder, and neck and shoulder tension data through the data acquisition module. S2. Preprocess the acquired and collected data, extract cervical spine imaging feature parameters, and calculate the mean tension in the neck and shoulder. and the uniformity of force distribution in the neck and shoulder area. ; S3. Calculate the inherent risk coefficient of cervical spondylosis based on cervical spine imaging characteristics, lying position, shoulder and back thickness data, average tension in the neck and shoulders, and uniformity of force distribution in the occipital, neck, and shoulder areas. Based on the inherent risk factor of cervical spondylosis Determine the risk level of cervical spondylosis; S4. Based on the inherent risk factor for cervical spondylosis Combined with the patient's neck length Based on data on the lying position and the thickness of the shoulders and back, the appropriate pillow support height is calculated. and neck support height ; S5. The interactive module displays the risk level of cervical spondylosis, analysis results, and suitable pillow parameters.

5. The control method according to claim 4, characterized in that, The method for calculating the risk coefficient of inherent cervical spondylosis based on cervical spine imaging characteristics, lying position, shoulder and back thickness data, mean neck and shoulder tension, and uniformity of force distribution in the occipital, neck, and shoulder area is as follows: in, The inherent risk factor for cervical spondylosis is used to assess the severity of a patient's cervical spondylosis, with a value ranging from 0 to 1. The actual physiological curvature of the patient's cervical spine; This represents the standard value for the physiological curvature of the cervical spine in a normal human body. The mean width of the intervertebral space in the cervical spine of the patient; This represents the standard average width of the intervertebral space in the cervical spine of a normal human. Identify patient lying positions, distinguishing between supine, left lateral, and right lateral positions. =0 indicates lying flat. =1 indicates lying on your left side. =2 indicates lying on your right side; The mean tension in the neck and shoulder of the patient in the corresponding posture; The standard tension value of the neck and shoulders in a relaxed state under normal human posture; The uniformity of force distribution in the occipital, neck, and shoulder regions under the patient's corresponding posture is used to assess whether the force distribution in the occipital, neck, and shoulder regions is uniform, with a value range of 0 to 1. These are weighting coefficients used to adjust the degree of influence of each parameter on the risk coefficient of cervical spondylosis. max[(parameter difference term), 0] is used to ensure that each contribution is non-negative.

6. The control method according to claim 4, characterized in that, Based on the inherent risk factor of cervical spondylosis Combined with the patient's neck length Based on data on the lying position and the thickness of the shoulders and back, the appropriate pillow support height is calculated. and neck support height The specific method is as follows: Pillow support height: Neck support height: in, The height of the pillow support when the user rests their head on the pillow body; the height of the lowest point of the pillow support area. The height of the neck support when the user rests their head on the pillow body; the height of the highest position of the neck support area. This is the neck length weighting coefficient, used to characterize the degree of linear correlation between neck length and support height, and it remains the same for both side-lying and supine positions. ; The supporting benchmark weighting coefficients are used to characterize... The weighting of the influence on support height is higher when lying on one's side than when lying flat. ; This is the occipital posture correction coefficient, which adjusts the correction range of the inherent risk coefficient on occipital height under different postures; This is the neck posture correction coefficient, which adjusts the degree to which the physiological curvature of the cervical spine corrects for neck height under different postures. The reference thickness for supine support / reference shoulder width for lateral support is calculated as follows: when supine, it is the vertical distance from the patient's back to the highest point of the shoulder; when lateral, it is the vertical distance from the bed surface to the acromion on the side of the patient's shoulder. This is the occipital height correction amount, used to adjust the occipital support height according to the risk level of cervical spondylosis, and it is consistent when lying on the side and lying on the back. This represents the inherent risk factor for cervical spondylosis. This is the neck height correction amount, used to adjust the neck support height according to the physiological curvature of the cervical spine, and it is consistent when lying on your side and lying flat. The actual physiological curvature of the patient's cervical spine; This represents the standard value for the physiological curvature of the cervical spine in a normal human body.

7. The control method according to claim 4, characterized in that, Based on the inherent risk factor of cervical spondylosis The method for determining the risk level of cervical spondylosis is as follows: the risk level of cervical spondylosis is divided into three levels: Low risk ( <0.3): The physiological curvature of the cervical spine is basically normal, the intervertebral space is normal, the tension in the neck and shoulders is moderate, and there are no obvious symptoms of cervical spondylosis. Medium risk (0.3≤ ≤0.6): Slight straightening of the cervical spine's physiological curvature or slight narrowing of the intervertebral space, high tension in the neck and shoulders, and mild symptoms of cervical spondylosis; High risk ( >0.6): The physiological curvature of the cervical spine is significantly straightened or reversed, the intervertebral space is significantly narrowed, the tension in the neck and shoulders is significantly high, and there are obvious symptoms of cervical spondylosis.

8. The control method according to claim 4, characterized in that, It also includes the following steps: based on the inherent cervical spondylosis risk factor and the uniformity of force distribution in the patient's occiput, neck and shoulder areas To determine the appropriate pillow material, the specific method is as follows: Low risk ( <0.3) and ≥0.8: Latex material is recommended; Medium risk (0.3≤ ≤0.6) or 0.6≤ <0.8: Memory foam material is recommended; High risk ( >0.6) and <0.6: Carbon fiber reinforced memory foam material is recommended.

9. The control method according to any one of claims 4-8, characterized in that, It also includes the following closed-loop pillow height adjustment steps: S41. The control system sends a control command to the height adjustment module, and the height adjustment module adjusts the headrest support height and neck support height to reach the calculated initial adaptation height. , ; S42. Restart the data acquisition module to collect data on the force distribution and tension in the neck and shoulders at the current height, and calculate the uniformity of the force distribution in the neck and shoulders. and the average tension in the neck and shoulders Calculate the current dynamic risk factor for cervical spondylosis. ; S43. Judgment Is it less than the inherent risk factor for cervical spondylosis? ,and Is it ≥0.8? If so, determine the current occipital support height. and neck support height Adjustment completes to achieve the optimal pillow height; if not, based on... and The difference is corrected to adapt to the height parameter. ), Return to step S41 to readjust and calculate the dynamic cervical spondylosis risk coefficient sequentially. , ...until the conditions are met or the preset number of adjustments is reached.

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