Intelligent lateral body device for preventing pressure injury

Abstract

The invention relates to the technical field of medical information, and discloses an intelligent lateral body device for preventing stress injury. The device comprises a side-leaning device main body which is internally provided with a placing groove used for placing the body of a patient, and the side-leaning device main body is provided with a first area and a second area on the two sides of the placing groove respectively; the measuring module comprises a pressure sensor, and the pressure sensor generates a pressure signal according to the pressure value of the monitoring point and transmits the pressure signal to the signal conversion module; the signal conversion module is used for decoding the pressure signal to obtain a pressure value and analyzing the pressure value to generate a first control instruction and a second control instruction; the massage module is arranged in the first area and the second area, and the massage module is used for massaging the patient according to the first control instruction; the driving module is arranged in the first area and the second area, and the driving module adjusts the lateral angle of the patient according to the second control instruction. The side body device is small in occupied volume and convenient to move, so that the use convenience is greatly improved.

Description

Technical Field

[0001] The present application relates to the field of medical information technology, and particularly to a side-lying device for intelligently preventing pressure injuries. Background Art

[0002] In the field of medical care, for patients who are bedridden for a long time or cannot change their body positions independently, the continuous pressure generated by the body contacting the same surface for a long time will cause pressure injuries. These pressure injuries not only increase the pain of the patients, but may also lead to infections and other complications, prolonging the hospital stay.

[0003] To solve this problem, the following methods have been proposed in the prior art. For example, Chinese Patent Document with Publication No. CN119405486A discloses an automatic turning system and control method that integrates the patient's body position and the posture of the nursing bed. This method uses the set position points and pressure magnitudes of piezoelectric films to accurately judge the patient's lying position through a position and posture analysis calculation module. The control module combines the posture information of the nursing bed and the patient's lying position information in the real environment to realize the automatic control of the nursing bed and the turning device, eliminating the need for manual assistance for turning. Another example is the Chinese Patent Document with Publication No. CN119655971A, which discloses a medical intelligent turning nursing system and a medical intelligent turning nursing pad. This system controls the inflation and deflation states of the corresponding airbags according to the individual characteristic data, key vital sign data of the bedridden patients, and the pressure data borne by different airbags, so as to adjust the body force of the bedridden patients on the air cushion.

[0004] However, the nursing beds or nursing mattresses of the above technical solutions require high manufacturing costs, and there are problems such as inconvenient movement of the equipment and difficulty in cleaning. Summary of the Invention

[0005] To solve the problems raised in the above background art, the present application provides a side-lying device for intelligently preventing pressure injuries.

[0006] To achieve the above-mentioned invention objective, the present invention provides a side-lying device for intelligently preventing pressure injuries, comprising:

[0007] A side-lying device main body, which is provided with a placement groove for placing the patient's body, and the side-lying device main body is respectively provided with a first area and a second area on both sides of the placement groove;

[0008] A measurement module, which is arranged in the side-lying device main body. The measurement module includes a pressure sensor, and the pressure sensor generates a pressure signal according to the pressure value of the monitoring point and transmits the pressure signal to the signal conversion module;

[0009] A signal conversion module, which decodes the pressure signal to obtain the pressure value, and analyzes the pressure value to generate a first control instruction and a second control instruction;

[0010] A massage module, which is arranged in the first area and the second area, and the massage module massages the patient according to the first control instruction;

[0011] A driving module, which is arranged in the first area and the second area, and the driving module adjusts the side-lying angle of the patient according to the second control instruction.

[0012] Further, the measurement module includes a plurality of the pressure sensors, the plurality of pressure sensors are respectively arranged in different monitoring points, the pressure sensors collect the pressure value every first time interval and send it to the signal conversion module, and the signal conversion module generates a pressure sequence corresponding to each monitoring point within the first time period based on the pressure value;

[0013] Define the pressure value greater than the critical threshold in the pressure sequence as a high-pressure value. If the number of occurrences of the high-pressure value in the pressure sequence exceeds the first number, determine the corresponding monitoring point as a high-risk pressure point, and adjust the side-lying angle by a first value based on the position of the high-risk pressure point;

[0014] If there is no such high-risk pressure point, locate the pressure concentration point among the monitoring points based on the pressure sequence. If the pressure concentration point does not change within the second time period, adjust the side-lying angle by a second value based on the position of the pressure concentration point.

[0015] Further, the first value is a fixed value. Before adjusting the side-lying angle according to the first value, determine the adjustment direction based on the position of the high-risk pressure point and the pressure values of the other monitoring points, and adjust the side-lying angle by the first value based on the adjustment direction.

[0016] Further, determining the second value includes the following steps:

[0017] Construct the pressure change rule of each monitoring point, set the pressure adjustment rule of the pressure concentration point, calculate the corresponding preliminary adjustment angle based on the pressure value of the pressure concentration point and the pressure adjustment rule, perform weighted averaging on the preliminary adjustment angle to obtain a predicted adjustment angle. If the predicted adjustment angle is less than the maximum limit value, use the maximum limit value as the second value, otherwise use the maximum limit value as the second value.

[0018] Further, after adjusting the side-lying angle to the second value, calculate the predicted pressure value of each pressure concentration point based on the second value and the pressure change rule, and obtain the actual pressure value of each pressure concentration point. Determine the pressure deviation based on the predicted pressure value and the actual pressure value. If more than the rated number of the pressure deviations exceed the maximum deviation value, correct the side-lying angle again until the preset conditions are met.

[0019] Further, the preset conditions include that the number of corrections reaches the preset maximum number, or the number of the pressure deviations not exceeding the rated number exceeds the maximum deviation value.

[0020] Further, the signal conversion module calculates the average pressure of each monitoring point based on the pressure sequence, converts the average pressure into a pressure distribution matrix according to the position distribution of the monitoring points, determines the current side-lying angle of the patient based on the pressure distribution matrix, and determines the standard distribution matrix according to the current position of the driving module. If the pressure distribution matrix does not match the standard distribution matrix, trigger an abnormal posture alarm.

[0021] Further, an information acquisition module is arranged in the main body of the side-lying device. The information acquisition module is used to acquire the physical sign information and usage records of the patient. The usage records include the pressure values of the monitoring points at each acquisition time point and the adjustment process of each side-lying angle. The information acquisition module uploads the usage records to the cloud platform for storage.

[0022] Further, the cloud platform analyzes the usage records to determine the best adjustment scheme for the side-lying angle under each physical sign information. When it is necessary to adjust the current side-lying angle, the information acquisition module obtains the best adjustment scheme from the cloud platform based on the physical sign information and the current pressure distribution matrix of the monitoring points, and adjusts the side-lying angle based on the best adjustment scheme.

[0023] Further, the measurement module includes a temperature sensor and a humidity sensor. When the measurement module detects that the temperature of the monitoring point exceeds the temperature threshold or the humidity exceeds the humidity threshold, control the driving module to adjust the side-lying angle.

[0024] Beneficial effects;

[0025] The present invention monitors the pressure value of the patient's body in real time through a pressure sensor. When the pressure value is abnormal, the side-lying angle of the patient is automatically adjusted to avoid the occurrence of pressure injuries. And the present invention is also provided with a massage module, and the massage module performs targeted massage on the patient to promote blood circulation and reduce discomfort. By the present invention, the frequency and workload of the nursing staff turning the patient over can be reduced, and the nursing efficiency can be improved. Description of the drawings

[0026] Figure 1 This is a schematic diagram of the principle of a side-lying device for intelligently preventing pressure injuries in this application;

[0027] Figure 2 This is a schematic diagram of an implementation method of the drive module in this application;

[0028] Figure 3 This is a flowchart for adjusting the side-lying angle in this application;

[0029] Figure 4 This is a flowchart of the steps for obtaining the optimal adjustment plan in this application. Detailed implementation method

[0030] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0031] It can be understood that the terms "first", "second", etc. used in this application may be used herein to describe various elements, but unless otherwise specified, these elements are not limited by these terms. These terms are only used to distinguish the first element from another element. For example, without departing from the scope of this application, the first xx script may be referred to as the second xx script, and similarly, the second xx script may be referred to as the first xx script.

[0032] As Figure 1 shown, a side-lying device for intelligently preventing pressure injuries includes:

[0033] The main body of the side-lying device, which is provided with a placement groove for placing the patient's body, and the main body of the side-lying device is respectively provided with a first area and a second area on both sides of the placement groove.

[0034] The measurement module is arranged in the main body of the side-lying device. The measurement module includes a pressure sensor. The pressure sensor generates a pressure signal according to the pressure value of the monitoring point and transmits the pressure signal to the signal conversion module.

[0035] The signal conversion module decodes the pressure signal to obtain the pressure value, analyzes the pressure value to generate a first control instruction and a second control instruction.

[0036] The massage module is arranged in the first area and the second area. The massage module massages the patient according to the first control instruction.

[0037] The drive module is arranged in the first area and the second area. The drive module adjusts the side-lying angle of the patient according to the second control instruction.

[0038] Figure 1 This is a schematic diagram of the principle of the present invention. When in use, place the patient's waist in the placement groove. The patient maintains a side-lying position, and the orientation of the side-lying position is placed according to actual needs. When lying on the side, the patient's buttocks should be centered in the front-back direction. The width of the placement groove is greater than the width of the patient's body to ensure that the patient can move left and right after placement. After placement, the patient leans against one side of the placement groove. In one embodiment, the measurement module includes a pressure sensor, and a monitoring point is set at the bottom of the placement groove, and the pressure sensor is arranged in the monitoring point; in one embodiment, multiple monitoring points are set at different positions of the placement groove, the measurement module includes multiple pressure sensors, and each monitoring point is correspondingly provided with a pressure sensor.

[0039] The signal conversion module includes an analog-to-digital converter and a single-chip microcomputer. The analog-to-digital converter is used to convert the voltage signal generated by the pressure sensor into a digital signal for easy processing by the single-chip microcomputer; the single-chip microcomputer generates a first control instruction and a second control instruction according to the pressure value of each monitoring point. The first control instruction is used to control the massage module, and the second control instruction is used to control the driving module. There are various adjustment rules in the single-chip microcomputer for triggering and adjusting the side-lying angle of the user. For example, when the pressure value at a certain monitoring point is relatively large, such as exceeding 35 mmHg and continuously exceeding for 1 h, the side-lying angle is adjusted. The specific adjustment rules will be introduced in detail later.

[0040] The side-lying device main body is provided with massage modules on both sides of the placement groove, that is, massage modules are arranged in the first area and the second area. By massaging the patient through the massage modules, the blood flow speed can be accelerated, thereby reducing discomfort.

[0041] The side-lying device main body is provided with a driving module, and the driving module is used to adjust the side-lying angle of the patient. As a way of implementation, as Figure 2 shown, the driving module includes a rotating plate that can adjust the angle. When it is necessary to adjust the side-lying angle of the patient, the rotating plate is controlled by a power device to rotate from position E to position F. The power device is, for example, a driving motor and a motor reducer. The surface of the rotating plate is a gel-filled material to ensure the comfort of the patient during use. The surface of the rotating plate fits the body shape of the human body, and the adjustment of the side-lying angle is achieved by the rotation of the rotating plate. The specific implementation methods include multiple types and are prior arts, so they will not be shown here.

[0042] Particularly, an alarm module is also provided in the side-lying device main body. When the pressure value exceeds the standard, the alarm module will emit an alarm sound. In addition, the present invention also has a manual mode and an automatic mode. The manual mode can manually set the side-lying angle, and the automatic mode can automatically adjust the patient's posture according to the patient's posture and the holding duration. The specific adjustment method will be introduced later.

[0043] The present invention monitors the pressure value of the patient's body in real time through a pressure sensor. When the pressure value is abnormal, it automatically adjusts the patient's side-lying angle to avoid the occurrence of pressure injuries. In addition, the present invention is also provided with a massage module, which performs targeted massage on the patient to promote blood circulation and reduce discomfort. The present invention can reduce the frequency and workload of the nursing staff turning the patient over, and improve the nursing efficiency.

[0044] It should be particularly noted that the side-lying device of the present invention occupies a small volume and is convenient to move, thus greatly improving the usability.

[0045] In this embodiment, the adjustment of the side-lying angle in the automatic mode includes the following rules: The measurement module includes a plurality of pressure sensors, which are respectively arranged at different monitoring points. The pressure sensors collect pressure values at intervals of a first time and send them to the signal conversion module. The signal conversion module generates a pressure sequence corresponding to each monitoring point within a first time period based on the pressure values.

[0046] The first time is set to 1 s, and the first time period is set to 10 min. In other embodiments, it can also be set to 30 min or other values. After the side-lying device is started, the pressure sensors obtain the pressure values of the monitoring points at intervals of 1 s, generate corresponding pressure signals, and send the pressure signals to the signal conversion module. After the signal conversion module decodes them, it obtains the pressure values of the monitoring points and the corresponding time points when they appear. Then, each monitoring point will collect 600 pressure values in 10 min, and the 600 pressure values will be used as the corresponding pressure sequence.

[0047] Define the pressure values greater than the critical threshold in the pressure sequence as high-pressure values. If the number of occurrences of the high-pressure values in the pressure sequence exceeds the first number, determine the corresponding monitoring point as a high-risk pressure point, and adjust the side-lying angle by a first value based on the position of the high-risk pressure point.

[0048] Specifically, the first value is a fixed value. Before adjusting the side-lying angle according to the first value, determine the adjustment direction based on the position of the high-risk pressure point and the pressure values of the other monitoring points, and adjust the side-lying angle by the first value based on the adjustment direction.

[0049] Specifically, first, determine whether there are pressure values greater than the preset critical threshold in the pressure sequence. The critical threshold is, for example, 35 mmHg. If so, continue to obtain the number of times it appears. In this embodiment, the first number is set to 300 times. If there are 600 pressure values in a certain pressure sequence, and 300 of them are greater than 35 mmHg, then the monitoring point corresponding to this pressure sequence is used as a high-risk pressure point. For example, if a patient lies on their side vertically for a long time, it will cause a large pressure value on one side of their waist. When the duration is long, it is necessary to adjust their side-lying angle.

[0050] In this embodiment, the first value is set to a fixed value, such as 20°. By setting a larger first value, the lateral body angle of the patient is adjusted to a greater extent to minimize the pressure value of the original high-risk pressure points as much as possible. Before adjustment, the adjustment direction is first determined according to the position of the high-risk pressure points and the pressure values of the monitoring points. For example, if the high-risk pressure points are distributed at the bottom of the lateral body device, and for the monitoring points of non-high-risk pressure points, such as the pressure value of the monitoring point on the left side is significantly less than that of the monitoring point on the right side, it indicates that the current patient is facing left. At this time, the lateral body angle is reduced to disperse the pressure borne by the bottom of the patient.

[0051] If there are no high-risk pressure points, the pressure concentration points are located among the monitoring points based on the pressure sequence. If the pressure concentration points do not change within the second time period, the lateral body angle is adjusted by a second value based on the positions of the pressure concentration points.

[0052] If it is determined that there are no high-risk pressure points among the monitoring points according to the above method, the pressure concentration points are located among the monitoring points. In this embodiment, the pressure concentration points are located based on the following steps. First, the first average value of the pressure values in each pressure sequence is calculated, and the pressure sequences with smaller first average values are excluded. When the patient lies on their side, some monitoring points will not detect pressure values. For example, when lying on the left side, the monitoring points on the right side will not detect pressure values. By excluding the pressure sequences corresponding to these monitoring points, the accuracy of subsequent calculations can be improved. The monitoring points retained after screening are defined as pressure-bearing points. The first average value of the pressure-bearing points is calculated again to obtain the second average value. Then, the pressure deviation ΔP of the i-th pressure-bearing point is calculated through the first formula. The first formula is: ΔP i =P i -P, where P i is the first average value of the i-th pressure-bearing point, and P is the second average value.

[0053] After that, the pressure deviations of each pressure-bearing point are standardized to obtain the standard value of each pressure-bearing point, which is specifically calculated through the second formula. The second formula is: Z i =ΔP i / σ, where Z iσ is the standard value of the i-th bearing point, and σ is the standard deviation of all bearing points. A statistical threshold is set based on the normal distribution rule. Specifically, the statistical threshold is set to 2. When the standard value of the bearing point is greater than 2, it indicates that the data has a significant deviation. Based on this, the bearing points with significant deviation in pressure deviation are selected as target points, and then the first average value of each target point is obtained, and the first half of the target points with larger values are selected as pressure concentration points. For example, if it is determined that monitoring points A, B, and C are pressure concentration points, and within the first time period (20 min), the pressure concentration points are still monitoring points A, B, and C (the pressure concentration points do not shift), then the side body angle is adjusted to change the pressure concentration point. The above adjustment process is as Figure 3 shown.

[0054] When pressure is concentrated on some parts for a long time, such as when the side body angle of the patient is small, although there are no high-risk pressure points, in order to improve the comfort of the patient, the posture can still be adjusted at regular intervals in the automatic mode.

[0055] Determining the second value in this embodiment includes the following steps:

[0056] Construct the pressure change rule for each monitoring point, set the pressure adjustment rule for the pressure concentration point, calculate the corresponding preliminary adjustment angle based on the pressure value of the pressure concentration point and the pressure adjustment rule, and perform weighted averaging on the preliminary adjustment angles to obtain the predicted adjustment angle. If the predicted adjustment angle is less than the maximum limit value, the maximum limit value is used as the second value; otherwise, the maximum limit value is used as the second value.

[0057] Specifically, the pressure change rule includes a linear function, a non-linear function, or other numerical rules, which are specifically calibrated through experiments. For example, for the j-th monitoring point, the change rule of its pressure value refers to the third formula, and the third formula is: P j (θ) = k j ·θ + P j0 , where P j (θ) is the predicted pressure value of the j-th monitoring point after changing the side body angle θ, k j is the correction coefficient of the j-th monitoring point, which is specifically calibrated through experiments, and P j0 is the pressure value of the monitoring point before changing the side body angle. Another example is that for the l-th monitoring point, the change rule of its pressure value refers to the fourth formula, and the fourth formula is: P l (θ) = a l ·θ 2 + b l ·θ + c l + P l0 , P l (θ) is the predicted pressure value of the l-th monitoring point after changing the side body angle θ, a l 、bl , c l is the correction coefficient of the l-th monitoring point, which is specifically calibrated according to experiments. P l0 is the pressure value of the monitoring point before changing the side-lying angle, that is, the pressure value of this kind of monitoring point will increase or decrease sharply with the change of the side-lying angle.

[0058] This embodiment sets a pressure adjustment rule. For example, the pressure adjustment rule is set as follows: after adjusting the side-lying angle, it is necessary to reduce the pressure value of each pressure concentration point by 2 mmHg. When determining the second value, first, according to the pressure adjustment rule, the pressure values of the pressure concentration points before and after adjustment can be determined, and then substituted into the pressure change rule corresponding to the pressure concentration point to obtain the preliminary adjustment angle of this monitoring point. For example, after calculation, it is determined that the preliminary adjustment angle of monitoring point A is 3°, and the preliminary adjustment angle of monitoring point B is 4°. In this embodiment, corresponding weights are also set for each monitoring point. For example, the weight of the monitoring point at the bottom of the side-lying device is larger, and the weight of the monitoring point at the top of the side-lying device is smaller. Finally, the preliminary adjustment angles of all pressure concentration points are weighted and averaged to obtain the predicted adjustment angle.

[0059] This embodiment also sets a maximum limit value, and the maximum limit value is 10°. By setting the maximum limit value, a large-amplitude adjustment of the patient's side-lying angle is avoided in this case, so as to achieve fine adjustment of the patient's posture and reduce their discomfort. Therefore, when the predicted adjustment angle is less than the maximum limit value, such as 3°, the side-lying angle is changed by 3°. When the predicted adjustment angle is greater than or equal to the maximum limit value, the side-lying angle is changed by 10°.

[0060] After this embodiment adjusts the side-lying angle by the second value, it calculates the predicted pressure value of each pressure concentration point based on the second value and the pressure change rule, and obtains the actual pressure value of each pressure concentration point. Based on the predicted pressure value and the actual pressure value, the pressure deviation is determined. If more than the rated number of pressure deviations exceed the maximum deviation value, the side-lying angle is corrected again until the preset conditions are met.

[0061] In this embodiment, the preset conditions include that the number of corrections reaches the preset maximum number, or the number of pressure deviations not exceeding the rated number exceeds the maximum deviation value.

[0062] Based on the previously constructed function, substituting the second numerical value into it can determine the adjusted predicted pressure value at each pressure concentration point. Then, the actual pressure value at the pressure concentration point is obtained through a pressure sensor. Due to differences in characteristics such as human body posture, weight, and shape, there will be certain deviations in the constructed pressure function. Therefore, after adjustment, the pressure deviation between the predicted pressure value and the actual pressure value is calculated. If there are large pressure deviations at multiple pressure concentration points, it indicates that the adjustment does not meet the expectations, and the side body angle continues to be corrected. The rated quantity is set to 3, for example, and the maximum deviation value is set to 1 mmHg. This embodiment is corrected based on the following method. For example, taking 1° as a step, adjusting one step to the left, and determining whether there are still more than 3 pressure concentration points with large pressure deviations. If not, stop the correction; otherwise, continue to adjust one step to the left. If there are still more than 3 pressure concentration points with large pressure deviations, after the side body device returns to the origin before correction, continue to adjust one step to the right. That is, the correction process is to first move two steps to the left and then two steps to the right. If the correction cannot be completed, stop the correction of the side body angle.

[0063] In this embodiment, the signal conversion module calculates the pressure mean value of each monitoring point based on the pressure sequence, converts the pressure mean value into a pressure distribution matrix according to the position distribution of the monitoring points, determines the current side body angle of the patient based on the pressure distribution matrix, and determines the standard distribution matrix according to the current position of the driving module. If the pressure distribution matrix does not match the standard distribution matrix, a posture abnormality alarm is triggered.

[0064] Specifically, first, calibrate the standard pressure range of each monitoring point when the driving module is in various positions and generate the corresponding standard distribution matrix. For example, for the side body angle A, its standard distribution matrix is Each element in it represents the range within which the pressure value of each monitoring point should be at this side body angle. Then, calculate the pressure mean value corresponding to each monitoring point based on the pressure sequence, and construct the corresponding pressure distribution matrix according to the position of the monitoring points. The pressure distribution matrix is, for example, Then, if the numerical value of the element of the pressure distribution matrix falls within the numerical range of the standard distribution matrix, it is considered that the pressure value at this position matches. Finally, the matching degree is determined by the ratio of the number of matching elements to the number of all elements in the matrix. For example, there are 16 elements in the pressure distribution matrix, that is, there are 16 monitoring points, and 8 of them match, so the matching degree is 8 / 16 = 0.5. Here, a judgment threshold is also set. When the matching degree is greater than the judgment threshold, it is considered that the pressure distribution matrix matches the standard distribution matrix. Otherwise, it is considered that the two do not match, and a posture abnormality alarm is triggered. For example, after the current driving module adjustment is completed, the patient needs to be approximately lying flat, but through analysis, it is found that the patient is still in a side lying state, then a posture abnormality alarm is triggered.

[0065] An information acquisition module is provided inside the main body of the side-lying device. The information acquisition module is used to obtain the physical sign information and usage records of the patient. The usage records include the pressure values at each monitoring point at each acquisition time point, and the adjustment process of each side-lying angle. The information acquisition module uploads the usage records to the cloud platform for storage.

[0066] The cloud platform analyzes the usage records to determine the best adjustment plan for the side-lying angle under each type of physical sign information. When it is necessary to adjust the current side-lying angle, the information acquisition module obtains the best adjustment plan from the cloud platform based on the physical sign information and the pressure distribution matrix of the current monitoring point, and adjusts the side-lying angle based on the best adjustment plan.

[0067] Specifically, the physical sign information includes weight, age, height, etc. The information acquisition module can be a wireless receiver, which obtains the physical sign information of the patient from the server. At the same time, when the patient is using the device, the pressure values at each monitoring point at each acquisition time point during the use process are obtained through the measurement module. The adjustment process also includes the side-lying angle before each adjustment and the side-lying angle after adjustment. The physical sign information and pressure values are uploaded to the cloud platform for storage. After the cloud platform collects a certain amount of data, the data is analyzed to determine the best adjustment plan for the side-lying angle under each type of physical sign information. The purpose of this step is, as mentioned before, there may be adjustment deviations after adjustment, and continuous adjustment and optimization are needed to find the optimal adjustment angle. After the device is put into use, the adjustment process is optimized by continuously collecting usage data, that is, the best adjustment angle, that is, the best adjustment plan, is directly determined according to the physical sign information of the user, the current side-lying angle, and the pressure distribution of each monitoring point, so as to avoid repeatedly adjusting the side-lying angle.

[0068] Specifically, it can be determined by using statistical analysis methods, or various artificial intelligence algorithms, such as clustering algorithms. This will not be introduced here. The specific analysis result is to determine what angle the patient's next side-lying angle will usually be adjusted to under the condition of physical sign information, the current side-lying angle, and the pressure values of each monitoring point, and this angle is used as the best adjustment plan.

[0069] Such as Figure 4The figure shows a flowchart of steps for obtaining an optimal adjustment plan. For example, when there is a pressure concentration point that requires adjustment of the side body information, the information acquisition module determines that when the patient's weight is 75 kg, height is 170 cm, age is 25, and the side body angle is 25°, and the pressure concentration points are monitoring points A, B, and C, with pressure values of 15 mmHg, 16 mmHg, and 17 mmHg respectively. Then, through matching, such as using the cosine similarity method for various data, if there is a corresponding optimal adjustment plan, such as adjusting 5° to the left, the side body angle of the patient is directly controlled to adjust 5° to the left. In particular, if no optimal adjustment plan is matched, the adjustment of the side body angle continues according to the method of pre-determining the second value.

[0070] The measurement module includes a temperature sensor and a humidity sensor. When the measurement module detects that the temperature at a monitoring point exceeds the temperature threshold or the humidity exceeds the humidity threshold, it controls the drive module to adjust the side body angle.

[0071] By setting the temperature sensor and the humidity sensor, the temperature and humidity at the monitoring point can be further monitored. When the temperature and humidity at the monitoring point are relatively high, the side body angle can also be automatically adjusted, thereby further improving the comfort of use.

[0072] It should be understood that the technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered to be within the scope described in this specification.

[0073] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An intelligent side-lying device for preventing pressure injuries, characterized in that, Comprising: A side body device, which is provided with a placement groove for placing a patient's body, and the side body device is respectively provided with a first area and a second area on both sides of the placement groove; A measurement module, which is arranged in the side body device, and the measurement module includes a pressure sensor, and the pressure sensor generates a pressure signal according to the pressure value of the monitoring point and transmits the pressure signal to the signal conversion module; A signal conversion module, which decodes the pressure signal to obtain the pressure value and analyzes the pressure value to generate a first control instruction and a second control instruction; A massage module, which is arranged in the first area and the second area, and the massage module massages the patient according to the first control instruction; A driving module, which is arranged in the first area and the second area, and the driving module adjusts the side body angle of the patient according to the second control instruction.

2. The device according to claim 1, characterized in that, The measurement module includes a plurality of the pressure sensors, and the plurality of pressure sensors are respectively arranged in different monitoring points. The pressure sensors collect the pressure value every first time interval and send it to the signal conversion module, and the signal conversion module generates a pressure sequence corresponding to each monitoring point within a first time period based on the pressure value; Define the pressure value greater than the critical threshold in the pressure sequence as a high-pressure value. If the number of occurrences of the high-pressure value in the pressure sequence exceeds the first number, determine the corresponding monitoring point as a high-risk pressure point, and adjust the side body angle by a first value based on the position of the high-risk pressure point; If there is no high-risk pressure point, locate the pressure concentration point among the monitoring points based on the pressure sequence. If the pressure concentration point does not change within a second time period, adjust the side body angle by a second value based on the position of the pressure concentration point.

3. The device according to claim 2, wherein The first value is a fixed value. Before adjusting the side body angle according to the first value, determine the adjustment direction based on the position of the high-risk pressure point and the pressure values of the other monitoring points, and adjust the side body angle by the first value based on the adjustment direction.

4. The device according to claim 2, characterized in that, Determining the second value includes the following steps: Construct the pressure change rule of each monitoring point, set the pressure adjustment rule of the pressure concentration point, calculate the corresponding preliminary adjustment angle based on the pressure value of the pressure concentration point and the pressure adjustment rule, perform weighted averaging on the preliminary adjustment angle to obtain the predicted adjustment angle. If the predicted adjustment angle is less than the maximum limit value, use the maximum limit value as the second value, otherwise use the maximum limit value as the second value.

5. The device according to claim 4, characterized in that, After adjusting the side body angle by the second value, calculate the predicted pressure value of each pressure concentration point based on the second value and the pressure change rule, and obtain the actual pressure value of each pressure concentration point. Determine the pressure deviation based on the predicted pressure value and the actual pressure value. If more than the rated number of pressure deviations exceed the maximum deviation value, correct the side body angle again until the preset conditions are met.

6. The device according to claim 5, characterized in that The preset conditions include that the number of corrections reaches the preset maximum number, or the pressure deviations of those not exceeding the rated quantity exceed the maximum deviation value.

7. The device according to claim 2, characterized in that, The signal conversion module calculates the pressure mean value of each monitoring point based on the pressure sequence, converts the pressure mean value into a pressure distribution matrix according to the position distribution of the monitoring points, determines the current side-lying angle of the patient based on the pressure distribution matrix, determines a standard distribution matrix according to the current position of the driving module, and triggers a posture abnormality alarm if the pressure distribution matrix does not match the standard distribution matrix.

8. The device according to claim 7, characterized in that An information acquisition module is arranged in the main body of the side-lying device. The information acquisition module is used to acquire the physical sign information and usage records of the patient. The usage records include the pressure values of the monitoring points at each acquisition time point and the adjustment process of each side-lying angle. The information acquisition module uploads the usage records to the cloud platform for storage.

9. The device according to claim 8, wherein The cloud platform analyzes the usage records to determine the best adjustment plan for the side-lying angle under each type of physical sign information. When it is necessary to adjust the current side-lying angle, the information acquisition module obtains the best adjustment plan from the cloud platform based on the physical sign information and the current pressure distribution matrix of the monitoring points, and adjusts the side-lying angle based on the best adjustment plan.

10. The device according to claim 1, characterized in that, The measurement module includes a temperature sensor and a humidity sensor. When the measurement module detects that the temperature of a monitoring point exceeds the temperature threshold or the humidity exceeds the humidity threshold, it controls the driving module to adjust the side-lying angle.

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