Multifunctional paralysis nursing mattress and adjusting method thereof
The design of the multifunctional paralysis care mattress utilizes a body pressure monitoring and adjustment mechanism to achieve automatic posture adjustment, solving the problem that existing care mattresses cannot adaptively adjust, thus improving patient comfort and safety.
Patent Information
- Application Number
- CN202511148358.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-17
- Publication Date
- 2025-11-11
AI Technical Summary
Existing nursing mattresses cannot adaptively adjust the patient's posture based on real-time pressure, lack body pressure distribution monitoring, resulting in excessive local pressure, and do not integrate turning and back-raising functions, making them complex in structure and lacking in comfort.
A multifunctional paralysis care mattress was designed, comprising a first mattress and a second mattress, which are hinged together. A body pressure monitoring module and an adjustment mechanism are installed, and automatic adjustment is achieved through a control device and processor. The mattress is divided into zones and a predictive model is used for posture optimization.
It enables automatic adjustment of patient posture based on real-time monitoring and prediction of body pressure, avoiding excessive local pressure, improving comfort and safety, and supporting adaptive adjustment of turning over and back-raising functions.
Smart Images
Figure CN120918901A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of medical and nursing equipment technology, specifically to a multifunctional paralysis care mattress and its adjustment method. Background Technology
[0002] In medical care, long-term bedridden patients are prone to problems such as pressure sores, muscle atrophy, and lung infections. Existing nursing mattresses mostly employ manual adjustment or single-function designs, which have the following drawbacks: the turning function relies on manual operation and cannot be automatically adjusted according to the patient's condition; there is a lack of real-time monitoring of body pressure distribution, leading to excessive local pressure, and the inability to adjust the patient's current posture according to the pressure applied; the backrest angle adjustment and turning function are not integrated, resulting in a complex structure and insufficient comfort. Therefore, this invention researches and designs a multifunctional paralysis nursing mattress and its adjustment method. Summary of the Invention
[0003] Therefore, the technical problem to be solved by the present invention is to overcome the defect of the prior art that cannot adaptively adjust the posture of the nursing mattress according to the real-time pressure, thereby providing a multifunctional paralysis nursing mattress and its adjustment method.
[0004] To address the above problems, the present invention provides a multifunctional paralysis care mattress, comprising: A base, along the length of the base, is provided with a first mattress and a second mattress, the first mattress and the second mattress being hinged at one end close to each other; Both the first and second mattresses are equipped with body pressure monitoring modules; The first adjustment mechanism is used to adjust the patient's posture on the first mattress and the second mattress; The second adjustment mechanism is disposed between the first mattress and the second mattress and the base, and is used to adjust the angle between the first mattress and the second mattress; A control device is provided for controlling the first adjustment mechanism and the second adjustment mechanism to adjust respectively, and for adjusting the first adjustment mechanism and the second adjustment mechanism according to the body pressure monitoring module. The control device is connected to a processor.
[0005] Preferably, the first mattress and the second mattress are divided into a first section, a second section, a third section, a fourth section, a fifth section, and a sixth section of equal width along the width direction of the base. The two ends of the second section are hinged to the first section and the third section, and the two ends of the fifth section are hinged to the fourth section and the sixth section.
[0006] Preferably, the body pressure monitoring module includes: pressure sensors, which are arranged in a rectangular array in the first partition, second partition, third partition, fourth partition, fifth partition and sixth partition respectively, and the pressure sensors are respectively connected to the processor; An angle encoder is provided between the second partition and the fifth partition, and the angle encoder is connected to the processor, the first partition, the second partition, the third partition, the fourth partition, the fifth partition, and the sixth partition.
[0007] Preferably, a support mechanism is further provided between the first and fourth partitions, the third and sixth partitions and the base. The support mechanism includes a horizontal support rod and an L-shaped support rod. The horizontal support rod is positioned below the first and fourth partitions, the third and sixth partitions, and near both ends of the horizontal support rod, a vertical end of the L-shaped support rod is connected to each of the following: the other end of the L-shaped support rod is hinged to the bottom of the first partition, the third partition, the fourth partition, the fifth partition and the base.
[0008] Preferably, one of the first adjustment mechanisms is disposed between the horizontal support rod and the base; The first adjustment mechanism includes: a support bar, wherein two pairs of support bars are provided, one end of each pair of support bars is rotatably connected to each other and is respectively provided with a first connecting part, and the first connecting part is rotatably connected to the adjacent base and horizontal support rod respectively; The other end of each pair of support bars is rotatably connected to the other end of another pair of support bars and is respectively provided with a second connecting part. A screw is provided between a pair of second connecting parts. One end of the screw is screwed to a second connecting part, and the other end is rotatably connected to another second connecting part. A positioning plate is provided on the second connecting part rotatably connected to the screw. A motor is provided on the positioning plate. The output shaft of the motor rotatably passes through the positioning plate and is connected to the screw.
[0009] Preferably, the second adjustment mechanism includes: a pair of slide rails and a rotating rod. The pair of slide rails are arranged parallel to each other along the length of the second mattress at the bottom of the second section. Each pair of slide rails is provided with a sliding wheel, which is slidably connected to the slide rail. Each sliding wheel is connected to a connecting strip. One end of the connecting strip is rotatably connected to the sliding wheel, and the other end is connected to the rotating rod. Both ends of the rotating rod are rotatably connected to the base.
[0010] Preferably, the base is provided with a fixed rod arranged parallel to the rotating rod, and a pair of extension bars are provided in the middle of the rotating rod. One end of each pair of extension bars is connected to the rotating rod, and the other end extends outward from the rotating rod. An electric cylinder is provided between the extension bars and the fixed rod. The fixed end of the electric cylinder is rotatably connected to the fixed rod, and the telescopic end of the electric cylinder is rotatably connected to the pair of extension bars.
[0011] Preferably, multiple support rods are provided between the fourth section, the fifth section, and the sixth section and the base.
[0012] The present invention also provides a method for adjusting a multifunctional paralysis care mattress, comprising the multifunctional paralysis care mattress described in the preceding claim, and including the following steps: S1: Select the plane where the base is located to establish a coordinate system, determine the target posture of each partition according to the coordinate system, and collect the posture information of each partition and the actual body pressure information of the pressure sensor; S2: Establish a body pressure prediction model for each zone, and use the body pressure information and time data of each zone as inputs to predict the body pressure information of each zone to obtain the predicted body pressure information. S3: Obtain the prediction error of actual body pressure information and predicted body pressure information, and formulate an adjustment plan based on the prediction error to make preliminary adjustments to the adjustment parameters of the first adjustment mechanism and the second adjustment mechanism; S4: The actual attitude and target attitude of each partition are compared through the feedback control algorithm to obtain the actual error signal, and the adjustment parameters of the first adjustment mechanism and the second adjustment mechanism are optimized based on the actual error signal.
[0013] The multifunctional paralysis care mattress and its adjustment method provided by this invention have the following beneficial effects: 1. This invention uses a first mattress and a second mattress, the lengths of which are divided according to the position of the human body lying on the hospital bed. The first mattress and the second mattress are hinged together. The angle between the first mattress and the second mattress is adjusted by a second adjustment mechanism to meet the patient's need to sit up. The posture of the second mattress relative to the base is adjusted by the first adjustment mechanism to meet the patient's need to turn over. At the same time, the body pressure monitoring module installed on the first mattress and the second mattress monitors the body pressure data of various parts of the patient in real time and adaptively adjusts the patient's posture to avoid excessive pressure on any part of the body. 2. This invention also achieves modular division of the nursing mattress, wherein, based on the first mattress being hinged to each other, the first and fourth sections, the second and fifth sections, and the third and sixth sections are hinged to each other to meet the patient's back-raising needs. The two ends of the second section are hinged to the first and third sections, and the two ends of the fifth section are hinged to the fourth and sixth sections to meet the patient's turning needs. Through the modular nursing mattress, the patient's turning and back-raising are adjusted using the first and second adjustment mechanisms. 3. The present invention also adjusts the sliding wheel by rotating the rod to slide within the slide rail, thereby driving the first mattress and the second mattress to adjust their angles and achieve the backrest function; 4. This invention also quantifies and defines the target posture of each zone by establishing a base plane coordinate system, achieving standardization and consistency in spatial positioning. This provides a precise reference benchmark for subsequent adjustments, avoiding adjustment deviations caused by coordinate system confusion. A predictive model based on body pressure information and time series can predict the pressure change trends of each zone in different time periods, enabling proactive intervention rather than passive response, thus improving the foresight and preventative nature of the adjustment. A preliminary adjustment plan is formulated through predictive error analysis, allowing for rapid adjustment of the parameters of the first and second adjustment mechanisms based on real-time monitored body pressure deviations, achieving dynamic balance. The error signal between the actual posture and the target posture is input into the feedback control algorithm for parameter optimization, thereby enabling adaptive adjustment. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the turning-over mode structure of the present invention; Figure 2 This is a schematic diagram of the starting mode of the present invention; Figure 3 This is a schematic diagram of the first connecting part structure of the present invention. Figure 4 This is a schematic diagram of the installation of the L-shaped support rod structure of the present invention; Figure 5 This is a schematic diagram of the installation of the extension strip structure of the present invention; Figure 6 This is a schematic diagram of the adjustment method of the present invention.
[0015] The reference numerals in the attached figures are as follows: 1. Base; 2. First section; 3. Second section; 4. Third section; 5. Fourth section; 6. Fifth section; 7. Sixth section; 8. Horizontal support rod; 9. L-shaped support rod; 10. Support bar; 11. First connecting part; 12. Second connecting part; 13. Screw; 15. Positioning plate; 16. Motor; 17. Slide rail; 18. Rotating rod; 19. Sliding wheel; 20. Connecting bar; 22. Fixing rod; 23. Extension bar; 24. Electric cylinder; 25. Support rod. Detailed Implementation
[0016] like Figure 1-6 As shown, the present invention provides a multifunctional paralysis care mattress, which includes: A base 1, along the length of the base 1, is provided with a first mattress and a second mattress, the first mattress and the second mattress being hinged at one end close to each other; Both the first and second mattresses are equipped with body pressure monitoring modules; The first adjustment mechanism is used to adjust the patient's posture on the first mattress and the second mattress; The second adjustment mechanism is disposed between the first mattress and the second mattress and the base 1, and is used to adjust the angle between the first mattress and the second mattress; A control device is provided, which controls the first and second adjustment mechanisms to adjust respectively, and adjusts the first and second adjustment mechanisms according to the body pressure monitoring module. The control device is connected to a processor. Figure 1-6 As shown, the base 1 serves as a support and is in the form of a frame. The first mattress and the second mattress are installed along the length of the base 1. Both mattresses are made of high-density memory foam. The lengths of the first mattress and the second mattress are determined according to the position of the patient lying on the hospital bed. The first mattress and the second mattress are hinged together. The angle between the first mattress and the second mattress is adjusted by a second adjustment mechanism to meet the patient's need to sit up. The posture of the second mattress relative to the base 1 is adjusted by the first adjustment mechanism to meet the patient's need to turn over. At the same time, the body pressure monitoring module installed on the first mattress and the second mattress monitors the body pressure data of various parts of the patient in real time and adaptively adjusts the patient's posture to avoid excessive pressure on any part of the body.
[0017] In some embodiments, the first mattress and the second mattress are divided into a first section 2, a second section 3, a third section 4, a fourth section 5, a fifth section 6, and a sixth section 7 of equal width along the width direction of the base 1. The two ends of the second section 3 are hinged to the first section 2 and the third section 4, and the two ends of the fifth section 6 are hinged to the fourth section 5 and the sixth section 7. For example... Figure 1-6As shown, the first and second mattresses are further divided into four equal-width sections along the width of the base 1: a first section 2, a second section 3, a fourth section 5, a fifth section 6, and a sixth section 7. This modular division of the nursing mattress is achieved. The first section 2 is hinged to the first section 5, the second section 3 to the fifth section 6, and the third section 4 to the sixth section 7, thus accommodating the patient's back movement needs. The two ends of the second section 3 are hinged to the first section 2 and the third section 4, and the two ends of the fifth section 6 are hinged to the fourth section 5 and the sixth section 7, thus accommodating the patient's turning over needs. The modular nursing mattress allows for adjustment of the patient's turning over and back movement using the first and second adjustment mechanisms.
[0018] In some embodiments, the body pressure monitoring module includes: pressure sensors arranged in a rectangular array in the first partition 2, second partition 3, third partition 4, fourth partition 5, fifth partition 6, and sixth partition 7, respectively, and the pressure sensors are respectively connected to the processor; an angle encoder is disposed between the second partition 3 and the fifth partition 6, and the angle encoder is connected to the processor, and the first partition 2, second partition 3, third partition 4, fourth partition 5, fifth partition 6, and sixth partition 7 are also included. Figure 1-6 As shown, the pressure sensor is commercially available. It uses a rectangular array distributed on the first partition 2, the second partition 3, the third partition 4, the fourth partition 5, the fifth partition 6 and the sixth partition 7 to monitor the body pressure of the patient at various parts of the body. After the pressure sensor acquires the information, the processor calculates and processes it to obtain the real-time body pressure information of the patient at that part of the body. Among them, the angle encoder is commercially available. It is used to obtain the angle between the first mattress and the second mattress in the backrest state. By obtaining the angle information in the backrest state and combining it with the body pressure information, the angle between the first mattress and the second mattress is adjusted in real time when it needs to be adjusted to the target position or when the local body pressure is too large. In this system, a tilt sensor is installed in each partition, which is commercially available, to obtain the attitude of each partition in real time.
[0019] In some embodiments, a support mechanism is further provided between the first partition 2 and the fourth partition 5, the third partition 4 and the sixth partition 7 and the base 1. The support mechanism includes a horizontal support rod 8 and an L-shaped support rod 9. The horizontal support rod 8 is positioned below the first partition 2 and the fourth partition 5, the third partition 4 and the sixth partition 7, with each end of the horizontal support rod 8 connected to a vertical end of the L-shaped support rod 9. The other end of the L-shaped support rod 9 is respectively hinged away from the first partition 2, the third partition 4, the fourth partition 5, and the fifth partition 6 to the base. Figure 1-6As shown, the support mechanism between the first section 2 and the fourth section 5, and the third section 4 and the sixth section 7 connects the two modular sections 2 and 4, and 4 and 7 of the first and second mattresses. During the rolling over mode, the horizontal support rod 8 provides support. One horizontal support rod 8 connects the first section 2 and 5, and 4 and 7 of the first and second mattresses, allowing the horizontal support rod 8 to rotate relative to the second section 3 and the fifth section 6, with the horizontal end of the connected L-shaped support rod 9 as the axis. The vertical end of the L-shaped support rod 9 can be connected to the horizontal support rod 8 by bonding, bolting, or welding. The other end extends backward and is hinged to the base. For example, the other end of the L-shaped support rod 9 below the first section 2 and the fourth section 5 extends towards the point projected onto the surface of the base 1 at the hinge point between the third section 4 and the sixth section 7 and the second section 3 and the fifth section 6.
[0020] In some embodiments, one of the first adjustment mechanisms is disposed between the horizontal support rod 8 and the base 1; The first adjustment mechanism includes: support bars 10, the support bars 10 are provided in two pairs, one end of each pair of support bars 10 is rotatably connected to each other and is respectively provided with a first connecting part 11, the first connecting part 11 is rotatably connected to the nearby base 1 and horizontal support rod 8 respectively; The other end of each pair of support bars 10 is rotatably connected to the other end of another pair of support bars 10 and is respectively provided with a second connecting part 12. A screw 13 is provided between a pair of second connecting parts 12. One end of the screw 13 is screwed to a second connecting part 12, and the other end is rotatably connected to another second connecting part 12. A positioning plate 15 is provided on the second connecting part 12 rotatably connected to the screw 13. A motor 16 is provided on the positioning plate 15, and the output shaft of the motor 16 rotatably passes through the positioning plate 15 and connects to the screw 13. Figure 1-6As shown, one first adjustment mechanism is installed between each horizontal support rod 8 and the base 1, and the two first adjustment mechanisms are staggered to avoid interference. The two pairs of support bars 10 of the first adjustment mechanism are connected sequentially, such that one end of each pair of support bars 10 is rotatably connected to each other, and the other end is rotatably connected to the other end of the other pair of support bars 10. The first adjustment mechanism is installed on the base 1 and the corresponding horizontal support rod 8 via two first connecting parts 11. The motor 16 is commercially available, and the connection between the output shaft of the motor 16 and the screw 13 can be via a coupling. The motor 16 drives the screw 13. Since one end of the screw 13 is screwed to a second connecting part 12, and the other end is rotatably connected to another second connecting part 12, the end of the screw 13 rotatably connected to the second connecting part 12 is provided with... The limiting ring is positioned so that when the screw 13 rotates and the other end of the screw 13 is screwed to the corresponding second connecting part 12, the limiting ring abuts against the adjacent second connecting part 12. As the screw 13 rotates, the linear distance between the two second connecting parts 12 is magnified or reduced. At this time, the structure formed by the two pairs of support bars 10 will be magnified or reduced due to the magnification or reduction of the distance between the two second connecting parts 12, which in turn reduces or magnifies the distance between the two first connecting parts 11. Since the horizontal support rod 8 connected to it rotates about the other end of the L-shaped support rod 9 as an axis, the corresponding first partition 2 and fourth partition 5, third partition 4 and sixth partition 7 will rotate relative to the second partition 3 and fifth partition 6. This achieves the mode of adjusting the patient's posture and turning over through the first adjustment mechanism.
[0021] In some embodiments, the second adjustment mechanism includes: a pair of slide rails 17 and a rotating rod 18. The pair of slide rails 17 are arranged parallel to each other along the length of the second mattress at the bottom of the second section 3. Each of the slide rails 17 has a sliding wheel 19 slidably connected to it. Each sliding wheel 19 is connected to a connecting strip 20, one end of which is rotatably connected to the sliding wheel 19, and the other end is connected to the rotating rod 18. Both ends of the rotating rod 18 are rotatably connected to the base 1. Figure 1-6 As shown, the slide rail 17 of the second adjustment mechanism is installed at the bottom of the second section 3 relative to the length direction of the second mattress. By rotating the rotating rod 18, the connecting strip 20 rotates around the rotating rod 18 as an axis. At this time, the sliding wheel 19 connected to the connecting strip 20 slides in a pair of slide rails 17, thereby realizing the backrest function of the first mattress and the second mattress. The rotating connection between the rotating rod 18 and the base 1 can be achieved by setting support seats on the base 1 at both ends of the rotating rod 18, and the rotating rod 18 and the support seats are rotatably connected.
[0022] In some embodiments, the base 1 is provided with a fixed rod 22 arranged parallel to the rotating rod 18. A pair of extension bars 23 are provided in the middle of the rotating rod 18. One end of each extension bar 23 is connected to the rotating rod 18, and the other end extends outward from the rotating rod 18. An electric cylinder 24 is provided between the extension bars 23 and the fixed rod 22. The fixed end of the electric cylinder 24 is rotatably connected to the fixed rod 22, and the telescopic end of the electric cylinder 24 is rotatably connected to the pair of extension bars 23. Figure 1-6 As shown, the electric cylinder 24 is commercially available. By extending and retracting the electric cylinder 24, the extension bar 23 and the rotating rod 18 connected by the extension cylinder 24 form a linkage motion, thereby realizing the rotation of the rotating rod 18 on the base 1. In this way, the adjusting sliding wheel 19 of the rotating rod 18 slides in the slide rail 17, thereby driving the first mattress and the second mattress to adjust their angles and realize the backrest function.
[0023] In some embodiments, a plurality of support rods 25 are provided between the fourth partition 5, the fifth partition 6, and the sixth partition 7 and the base 1. For example... Figure 1-6 As shown, the support rod 25 is installed on the bottom of the fourth section 5, the fifth section 6, and the sixth section 7 of the second mattress. The connection method can be adhesive, snap-fit, or welding. Under normal circumstances, the second mattress bears most of the weight. The support rod 25 serves to support the fourth section 5, the fifth section 6, and the sixth section 7. Corresponding alignment grooves are provided on the support rod 25 on the base 1 of the fourth section 5 and the sixth section 7, so that it can be aligned and guided when the fourth section 5 and the sixth section 7 rotate.
[0024] The present invention also provides a method for adjusting a multifunctional paralysis care mattress, comprising the multifunctional paralysis care mattress described in the preceding claim, and including the following steps: S1: Select the plane where the base is located to establish a coordinate system, determine the target posture of each partition according to the coordinate system, and collect the posture information of each partition and the actual body pressure information of the pressure sensor; S2: Establish a body pressure prediction model for each zone, and use the body pressure information and time data of each zone as inputs to predict the body pressure information of each zone to obtain the predicted body pressure information. S3: Obtain the prediction error of actual body pressure information and predicted body pressure information, and formulate an adjustment plan based on the prediction error to make preliminary adjustments to the adjustment parameters of the first adjustment mechanism and the second adjustment mechanism; S4: The actual attitude and target attitude of each partition are compared through the feedback control algorithm to obtain the actual error signal, and the adjustment parameters of the first adjustment mechanism and the second adjustment mechanism are optimized based on the actual error signal.
[0025] Specifically, a three-dimensional Cartesian coordinate system is constructed based on the base plane. The bed is divided into six equal sections along the Y-axis. The target posture of each section is determined according to the coordinate system. For example, in the rolling-over state, the posture of the first and fourth sections is different from that of the third or sixth section. The posture information and the actual body pressure information of the pressure sensor are collected by the posture sensor of each section. In the back-raising state, the angle between the first mattress and the second mattress is different. At this time, the posture information is obtained by the angle encoder. At the same time, the angle encoder can correct the actual angle in real time based on the posture sensor (eliminating mechanical backlash error).
[0026] Specifically, a body pressure prediction model is established for each partition using a time series prediction algorithm (such as an LSTM neural network). The inputs include: the actual body pressure P of each partition at the current time. actual (t), historical body pressure data ( t -1, t −2,…, t - n ) and the attitude angle data at the corresponding time. θ ( t-1 , t −2,…, t - n ), and the attitude information at the corresponding time. θ ( t The system outputs the predicted body pressure for the next time step using a body pressure prediction model for each partition. P predicted ( t +1); At the same time, the model is trained offline using patient static / dynamic stress datasets, and the weight parameters are optimized. During the data collection process, the model parameters are dynamically updated based on the real-time collected data to adapt to different patient signs.
[0027] Specifically, calculate the error between the actual body pressure and the predicted body pressure:
[0028] like If the pressure exceeds a threshold (e.g., >15% of the maximum tolerable pressure), the corresponding backrest adjustment increases the hinge angle between the first and second mattresses through the second adjustment mechanism (e.g., an electric push rod) to reduce back pressure concentration; the corresponding turning adjustment adjusts the lateral tilt angle of the first and fourth, third and sixth zones relative to the base through the first adjustment mechanism to achieve a certain angle for turning to the left or right. Based on the target posture of each zone set according to clinical needs, preliminary adjustment parameters are generated, using the corresponding angle adjustment amount in the backrest mode and the corresponding tilt angle adjustment amount in the turning mode.
[0029] Specifically, target postures for each zone are set according to clinical needs. For example, the target pitch angle for the first zone during back extension is 60°, and the target roll angle for the first / fourth zones during rollover is ±20°. These are used as target postures. Then, based on the posture information, the PID controller of the control device is used, with the actual posture θ of the zone as the input. actual , and the target attitude θ target Error signal:
[0030] in, This indicates the attitude error signal; Then, the optimized adjustment parameters are output. u ( t )for:
[0031] in, , , These are the PID control parameters corresponding to the proportional coefficient, integral coefficient, and derivative coefficient: Then, the action amounts of the first and second adjustment mechanisms are dynamically adjusted until the attitude error converges to the allowable range.
[0032] Specifically, in use, taking into account usage habits, time, and the body pressure applied, local pressure sores can be prevented. For example, when the body pressure in the third zone is consistently >30 mmHg and the prediction error E pressure If the pressure is greater than 10%, first increase the backrest angle by 5° to distribute the pressure on the waist and achieve initial adjustment. Then, fine-tune the hinge angle through the control device so that the actual tilt angle accurately matches the target value, while monitoring the pressure to drop to the safe threshold (<20mmHg).
[0033] Specifically, when the pressure sensor detects a continuous pressure of 25 kPa on the right hip (threshold 20 kPa), the control device activates a dynamic trajectory planning algorithm to generate a movement curve for a 35° leftward roll. The first adjustment mechanism pushes the first and fourth zones to achieve the roll and lift. During this process, the posture sensor provides real-time feedback on the body position offset, and the electric push rod fine-tunes the angle of the back lift area. Once the target angle is reached, the pressure sensor verifies that the pressure has dropped to 12-20 kPa. This position is maintained for 15 minutes (optimized based on user historical data), and is monitored in real time. If the position does not meet the requirements, the movement of the first and second adjustment mechanisms is adjusted in real time to achieve adaptive adjustment.
[0034] This application establishes a base plane coordinate system to quantitatively define the target posture of each zone, achieving standardization and consistency in spatial positioning. This provides a precise reference benchmark for subsequent adjustments, avoiding adjustment deviations caused by coordinate system confusion. A predictive model based on body pressure information and time series data can predict the pressure change trends of each zone in different time periods, enabling proactive intervention rather than passive response, thus improving the foresight and preventative nature of the adjustment. Preliminary adjustment plans are formulated through predictive error analysis, allowing for rapid adjustment of the parameters of the first and second adjustment mechanisms based on real-time monitored body pressure deviations, achieving dynamic balance. Error signals between the actual posture and the target posture are input into a feedback control algorithm for parameter optimization, thereby enabling adaptive adjustment.
[0035] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention. The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the protection scope of the present invention.
Claims
1. A multifunctional paralysis care mattress, characterized in that, include: A base, along the length of the base, is provided with a first mattress and a second mattress, the first mattress and the second mattress being hinged at one end close to each other; Both the first and second mattresses are equipped with body pressure monitoring modules; The first adjustment mechanism is used to adjust the patient's posture on the first mattress and the second mattress; The second adjustment mechanism is disposed between the first mattress and the second mattress and the base, and is used to adjust the angle between the first mattress and the second mattress; A control device is provided for controlling the first adjustment mechanism and the second adjustment mechanism to adjust respectively, and for adjusting the first adjustment mechanism and the second adjustment mechanism according to the body pressure monitoring module. The control device is connected to a processor.
2. The multifunctional paralysis care mattress according to claim 1, characterized in that: The first mattress and the second mattress are divided into a first section, a second section, a third section, a fourth section, a fifth section, and a sixth section of equal width along the width direction of the base. The two ends of the second section are hinged to the first section and the third section, and the two ends of the fifth section are hinged to the fourth section and the sixth section.
3. The multifunctional paralysis care mattress according to claim 2, characterized in that: The body pressure monitoring module includes: pressure sensors, which are arranged in a rectangular array in the first partition, second partition, third partition, fourth partition, fifth partition and sixth partition respectively, and the pressure sensors are respectively connected to the processor; An angle encoder is provided between the second partition and the fifth partition, and the angle encoder is connected to the processor, the first partition, the second partition, the third partition, the fourth partition, the fifth partition, and the sixth partition.
4. The multifunctional paralysis care mattress according to claim 2, characterized in that: A support mechanism is also provided between the first and fourth partitions, the third and sixth partitions and the base. The support mechanism includes a horizontal support rod and an L-shaped support rod. The horizontal support rod is positioned below the first and fourth partitions, the third and sixth partitions, and the vertical ends of the L-shaped support rods are respectively connected to the ends of the horizontal support rods. The other ends of the L-shaped support rods are respectively hinged to the bottom of the first partition, the third partition, the fourth partition and the fifth partition and the base.
5. The multifunctional paralysis care mattress according to claim 4, characterized in that: One of the first adjustment mechanisms is respectively provided between the horizontal support rod and the base; The first adjustment mechanism includes: a support bar, wherein two pairs of support bars are provided, one end of each pair of support bars is rotatably connected to each other and is respectively provided with a first connecting part, and the first connecting part is rotatably connected to the adjacent base and horizontal support rod respectively; The other end of each pair of support bars is rotatably connected to the other end of another pair of support bars and is respectively provided with a second connecting part. A screw is provided between a pair of second connecting parts. One end of the screw is screwed to a second connecting part, and the other end is rotatably connected to another second connecting part. A positioning plate is provided on the second connecting part rotatably connected to the screw. A motor is provided on the positioning plate. The output shaft of the motor rotatably passes through the positioning plate and is connected to the screw.
6. The multifunctional paralysis care mattress according to claim 1, characterized in that: The second adjustment mechanism includes: a pair of slide rails and a rotating rod. The pair of slide rails are arranged parallel to each other along the length of the second mattress at the bottom of the second section. Each pair of slide rails is provided with a sliding wheel, which is slidably connected to the slide rail. Each sliding wheel is connected to a connecting strip. One end of the connecting strip is rotatably connected to the sliding wheel, and the other end is connected to the rotating rod. Both ends of the rotating rod are rotatably connected to the base.
7. The multifunctional paralysis care mattress according to claim 1, characterized in that: The base is provided with a fixed rod arranged parallel to the rotating rod. A pair of extension bars are provided in the middle of the rotating rod. One end of each pair of extension bars is connected to the rotating rod, and the other end extends outward from the rotating rod. An electric cylinder is provided between the extension bars and the fixed rod. The fixed end of the electric cylinder is rotatably connected to the fixed rod, and the telescopic end of the electric cylinder is rotatably connected to the pair of extension bars.
8. The multifunctional paralysis care mattress according to claim 1, characterized in that: Multiple support rods are provided between the fourth section, the fifth section, and the sixth section and the base.
9. A method for adjusting a multifunctional paralysis care mattress, characterized in that: Adjusting the multifunctional paralysis care mattress according to any one of claims 1-8 includes the following steps: S1: Select the plane where the base is located to establish a coordinate system, determine the target posture of each partition according to the coordinate system, and collect the posture information of each partition and the actual body pressure information of the pressure sensor; S2: Establish a body pressure prediction model for each zone, and use the body pressure information and time data of each zone as inputs to predict the body pressure information of each zone to obtain the predicted body pressure information. S3: Obtain the prediction error of actual body pressure information and predicted body pressure information, and formulate an adjustment plan based on the prediction error to make preliminary adjustments to the adjustment parameters of the first adjustment mechanism and the second adjustment mechanism; S4: The actual attitude and target attitude of each partition are compared through the feedback control algorithm to obtain the actual error signal, and the adjustment parameters of the first adjustment mechanism and the second adjustment mechanism are optimized based on the actual error signal.