Medical turning mattress

Abstract

The utility model provides a kind of medical turning-over bed mattress, comprising: bottom plate both sides are equipped with right inflatable cushion and left inflatable cushion. Controller is electrically connected with control valve, control panel, and control working state;Timer is in control panel, and is electrically connected with controller, and can set turning-over interval and angle;Pressure detector, air pump are also connected with controller. The utility model is by right, left inflatable cushion respectively by n left inflatable bag and k right inflatable bag fan shape is formed, each inflatable bag has independent control valve, and partition inflation and pressure relief can be accurately adjusted. After setting turning-over interval and angle, timer triggers controller to execute instruction, adjusts air volume according to air pressure data, and ensures that patient is uniformly stressed. When inflatable cushion air pressure is abnormal, alarm warns, and data storage unit records. The design fuses mechanical and intelligent control, reduces patient injury risk, reduces medical care burden, improves nursing efficiency and quality, reduces labor cost.

Description

Technical Field

[0001] This utility model relates to the field of turning mattress technology, and in particular to a medical turning mattress. Background Technology

[0002] Prolonged bedridden patients are highly susceptible to pressure injuries (such as acne and bedsores) due to their fixed position and continuous pressure on local skin, posing a significant challenge to clinical nursing care. In traditional nursing models, patients rely on manual assistance to turn over to relieve local pressure. However, manual intervention suffers from inconsistent frequency, difficulty in precisely controlling pressure, and blind spots in nighttime care. This leads to impaired blood circulation in areas of prolonged pressure, clogged hair follicles and sebaceous glands, ultimately inducing acne or more serious pressure ulcers. Furthermore, the weakened skin barrier function of long-term bedridden patients makes them more susceptible to physical irritants such as moisture and friction, further exacerbating the risk of skin lesions and severely impacting their recovery process and quality of life.

[0003] Current technologies primarily rely on manual assistance to turn patients over to adjust their position, which has significant limitations. Manual turning requires frequent intervention from medical staff or family members, which not only increases nursing labor costs but also increases the risk of secondary injury to patients due to irregular operation or angle deviation. Utility Model Content

[0004] This utility model aims to at least solve the technical problem of high labor costs in the prior art, and innovatively proposes a medical turning mattress.

[0005] To achieve the above-mentioned objectives of this utility model, this utility model provides a medical turning mattress, comprising: Base plate; A right air cushion is provided on one side of the base plate, and a control valve is also provided on the right air cushion; The left air cushion is located on the other side of the base plate. The left air cushion is also equipped with a control valve and is symmetrical to the right air cushion. A controller, electrically connected to the control valve, is used to control the operating state of the control valve; A control panel, electrically connected to the controller, is used to send control commands to the controller; A timer, located within the control panel and electrically connected to the controller, is used to set the turning-over time interval and send a turning-over signal to the controller. A pressure detector, connected to the controller, is used to monitor the air pressure inside the right and left air pads; An air pump is connected to the controller.

[0006] The beneficial effects of this invention lie in its symmetrical and independent control design of the right and left air cushions, combined with the intelligent linkage of timers, pressure detectors, and controllers, achieving fully automatic body position management and effectively solving the problem of high labor costs associated with traditional manual turning. Specifically, the right air cushion consists of n left air bladders forming a fan-shaped structure, and the left air cushion consists of k right air bladders forming a fan-shaped structure. Each air bladder is equipped with an independent control valve, enabling precise adjustment of zoned inflation and depressurization. After setting the turning time interval and turning angle via the control panel, the timer automatically triggers the controller to execute the turning command. The controller dynamically adjusts the inflation volume of the right or left air cushion based on the air pressure data fed back by the pressure detector, ensuring even force distribution to all parts of the patient's body during turning and avoiding secondary injuries caused by concentrated pressure. When the air pressure of any air bladder in the inflatable cushion becomes abnormal, the alarm immediately issues a warning signal, and the data storage unit automatically records the abnormal time and air pressure parameters. Furthermore, the self-locking function of the control valve prevents simultaneous pressurization of the left and right air cushions, ensuring the stability and safety of the turning action. This design, through the deep integration of mechanical structure and intelligent control, significantly reduces the risk of pressure injury in long-term bedridden patients, while also alleviating the workload of medical staff, improving the efficiency and quality of clinical nursing, and reducing labor costs.

[0007] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0008] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of the initial state structure of a medical turning mattress according to this utility model.

[0009] Figure 2 This is a schematic diagram of the structure of a medical turning mattress in use according to this utility model.

[0010] In the diagram: 1. Base plate, 2. Right air cushion, 201. Left air bladder, 3. Left air cushion, 301. Right air bladder, 4. Control valve. Detailed Implementation

[0011] The embodiments of this utility model 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 this utility model, and should not be construed as limiting this utility model.

[0012] like Figure 1As shown, a medical turning mattress includes: Base plate 1; The base plate 1 is made of high-strength, lightweight materials (such as carbon fiber composite materials or aerospace aluminum alloys), which minimizes the overall weight while ensuring structural strength, making it easy to handle and install in clinical settings.

[0013] like Figure 1 As shown, the base plate 1 has a rectangular structure and serves as the supporting bottom of the reversible mattress, protecting the right air mattress 2 and the left air mattress 3 from damage by the bed. At the same time, its high strength ensures that the mattress is not easily deformed or damaged during long-term use, while the lightweight material facilitates handling and installation.

[0014] The right air cushion 2 is disposed on one side of the base plate 1, and the right air cushion 2 is also provided with a control valve 4; the right air cushion 2 includes n=3 right air bags 201, and each right air bag 201 is provided with a control valve 4. When all the right air bags 201 are inflated, the right air cushion 2 is fan-shaped.

[0015] like Figure 1 and 2 As shown, the fan-shaped design of the right airbag 2 allows it to better conform to the body's curves during inflation, providing more comfortable support for the patient. Each right airbag 201 is independently equipped with a control valve 4, allowing for individual control of the inflation and depressurization of each airbag according to actual needs, thereby achieving personalized body position adjustments. This design not only improves the mattress's applicability but also enhances patient comfort during use.

[0016] The left air cushion 3 is located on the other side of the base plate 1. The left air cushion 3 is also equipped with a control valve 4 and is symmetrical to the right air cushion 2. The left air cushion 3 includes k=3 left air bags 301, and each left air bag 301 is equipped with a control valve 4. When all the left air bags 301 are inflated, the left air cushion 3 is fan-shaped.

[0017] like Figure 1 and 2 As shown, the symmetrical design and fan-shaped structure of the left air cushion 3 echo the right air cushion 2, ensuring that the patient's body can rotate smoothly during turning. Each left air cushion 301 is independently equipped with a control valve 4, which can realize synchronous or differentiated inflation control with the right air cushion 2 to meet the position management needs in different nursing scenarios. For example, when turning to the left side is required, the controller adjusts the inflation volume of the left air cushion 3 to make the patient's body naturally tilt to the left, at which time the right air cushion 2 does not work.

[0018] The right air cushion 2 and left air cushion 3 are made of medical-grade elastic materials, such as medical-grade silicone or TPU (thermoplastic polyurethane elastomer). These materials not only have excellent elastic recovery properties, ensuring the mattress maintains its original shape after long-term use, but also possess excellent biocompatibility, preventing skin irritation or allergic reactions. Simultaneously, the antibacterial properties of the medical-grade materials effectively reduce bacterial growth during mattress use, ensuring the health and safety of patients.

[0019] The controller is electrically connected to the control valve 4 and is used to control the working state of the control valve 4; It should be noted that the controller in this embodiment uses a microcontroller, which possesses powerful data processing capabilities and stable control performance. It can accurately receive instructions from the control panel and send corresponding control signals to the control valve based on the timer-set turning interval. Its internal preset algorithm dynamically adjusts the opening degree of the control valve based on the air pressure data fed back by the pressure detector, thereby precisely controlling the inflation amount of the right or left air mattress to ensure smooth and safe turning movements. Furthermore, the microcontroller also has a self-diagnostic function. When an abnormality is detected in the control valve or the air pressure data exceeds the preset range, it immediately triggers an alarm to issue a warning signal and stores the abnormal information in the data storage unit for subsequent analysis and processing. This highly integrated intelligent control method not only improves the automation level of the mattress but also significantly enhances its reliability and safety.

[0020] The control panel is electrically connected to the controller and is used to send control commands to the controller. The control panel is equipped with a display screen to display the turning time, air pressure value and working status information. It is also equipped with operation buttons for medical staff or patients to set parameters and control the operation.

[0021] It should be noted that the control panel uses a high-resolution LCD screen, which can clearly display the turning time (accurate to the minute), the air pressure value of each inflatable bag (in kilopascals), and the current working status (such as standby, inflating, depressurizing). The operation buttons include numeric keys, function keys (such as start / pause, mode switching), and an emergency stop button. Medical staff or patients can quickly set the turning interval (ranging from 15 minutes to 4 hours), select the turning mode (such as left-side turning, right-side turning, alternating turning), or immediately stop the inflation process in an emergency using button combinations. In addition, the control panel has a built-in voice prompt function. When operation is completed or an abnormality occurs (such as low air pressure or equipment malfunction), it will emit different frequencies of prompt sounds via a buzzer, while the display screen shows the corresponding error code, facilitating quick problem identification.

[0022] A timer, located within the control panel and electrically connected to the controller, is used to set the turning-over time interval and send a turning-over signal to the controller. It should be noted that the timer uses a high-precision quartz crystal oscillator as the time reference, with a time setting error of no more than ±1 second per day, ensuring the timeliness of turning movements. Medical staff or patients input the turning interval (e.g., turning every 2 hours) via the numeric keys on the control panel. Upon reaching the set time, the timer automatically sends a trigger signal to the controller, which then initiates the corresponding inflation or deflation procedure. Furthermore, the timer has a power-off memory function, automatically restoring the settings to their previous state upon power restoration after an unexpected power outage, preventing interruptions to the nursing plan due to power failure. This design not only improves the accuracy of time control but also enhances the practicality and reliability of the equipment.

[0023] A pressure detector, connected to the controller, is used to monitor the air pressure inside the right air cushion 2 and the left air cushion 3.

[0024] It should be noted that the pressure detector uses a high-precision piezoresistive sensor with a measurement range of 0-100 kPa and an accuracy of ±0.5 kPa. It can monitor the pressure changes of each air bladder in the right and left air cushions in real time. The sensor is connected to the air bladders via an air tube, converting the pressure signal into an electrical signal and transmitting it to the controller. When the pressure of any air bladder exceeds or falls below a preset threshold (e.g., pressure exceeding 80 kPa during inflation or pressure falling below 10 kPa after depressurization), the controller immediately adjusts the opening of the corresponding control valve to ensure the pressure remains within a safe range.

[0025] An air pump is connected to the controller.

[0026] In this embodiment, when a medical turning mattress is in use, if the patient needs to turn to the left, the medical staff or the patient sends a control signal for turning to the left and a control signal for the turning angle to the controller through the control panel. The controller opens the control valve 4 (solenoid valve) and the air pump of the left air pad 3. At this time, the pressure detector monitors the air pressure in the left air pad 3 in real time. When the corresponding air pressure value is equal to the air pressure value corresponding to the turning angle, the controller controls the air pump to stop working and closes the control valve 4 of the left air pad 3.

[0027] The aforementioned table of correspondence between turning angle and air pressure value was obtained through experiments and stored in the controller. Specifically, the experiment simulated the contact pressure distribution between different parts of the body and the mattress at different turning angles, collected air pressure data of each air bladder using pressure sensors, and established a mathematical model of turning angle and air pressure value based on ergonomic principles. For example, when the turning angle is set to 30°, the experiment showed that the corresponding air bladder in the left air pad 3 needs to be inflated to 45 kPa to achieve stable support. This data was verified multiple times and stored as a standard parameter in the controller's memory. In actual use, the controller automatically calls the corresponding air pressure value according to the input turning angle command and ensures accurate air pressure matching during inflation through closed-loop control, thereby avoiding incomplete turning due to insufficient air pressure or discomfort caused by excessive air pressure.

[0028] In this embodiment, the left air cushion 3 includes three left air bladders 301, each equipped with a control valve 4. Each left air bladder 301 operates independently, and the maximum turning angle of each left air bladder 301 is 30 degrees. When the user designs a turning angle of 60 degrees, the controller only needs to inflate the first and second bottom left air bladders 301 to the maximum turning angle. When the user designs a turning angle of 80 degrees, the controller needs to inflate the first and second bottom left air bladders 301 to the maximum turning angle and control the third left air bladder 301 to inflate to the pressure value corresponding to 20 degrees (according to the experimental table of turning angles and pressure values, the pressure value corresponding to 20 degrees is the specific pressure required to achieve that angle), thus achieving precise turning angle control. This zoned and angle-based inflation control method not only improves the flexibility and accuracy of turning but also better adapts to the body shape and nursing needs of different patients. For example, overweight patients may require a larger turning angle and higher air pressure to support their body; while thinner patients or those with more sensitive skin can use a smaller turning angle and lower air pressure to reduce pressure and discomfort on their body.

[0029] When depressurization is required, medical staff or patients send a depressurization command via the control panel. Upon receiving the command, the controller sequentially opens the control valves 4 corresponding to the inflatable bladders on the left inflatable bladder 3 (if currently inflated) or the right inflatable bladder 2 (if depressurization from the other side is required). Simultaneously, the inflation pump is activated to operate in reverse suction mode (in some embodiments, the inflation pump can be switched to suction function, or rapid depressurization can be achieved through a separately set exhaust valve). The pressure detector monitors the air pressure inside the inflatable bladders in real time. When the air pressure drops to a safe threshold (e.g., below 10 kPa) or is completely depressurized, the controller closes the control valve 4 and stops the inflation pump / exhaust valve. During this process, if any abnormal depressurization rate of any inflatable bladder is detected (e.g., due to valve blockage causing excessively slow depressurization), the controller will issue an alarm sound and display the fault location and error code on the display screen for timely maintenance.

[0030] When a patient or medical staff sets a timed turning period, the timer starts and sends a turning trigger signal to the controller at preset time intervals (e.g., every 2 hours). Upon receiving the signal, the controller first determines if the patient is in a suitable turning state (e.g., no other operations are in progress, equipment is functioning correctly). If confirmed, it initiates the corresponding inflation program according to the preset turning direction (left or right). For example, if the setting is to turn to the left, the controller opens the control valves 4 corresponding to each air bladder on the right air cushion 2 and starts the inflation pump to inflate the air bladders. A pressure detector monitors the air pressure changes in each air bladder within the right air cushion 2 in real time. When the air pressure reaches the value corresponding to the turning angle (determined through an experimental table of turning angles and air pressure values), the controller immediately shuts off the inflation pump and control valves 4, completing the left-side turning action. If, during scheduled turning, medical staff or patients need to temporarily adjust the turning plan (such as turning earlier or changing the turning direction), they can input a new command through the control panel. The controller will prioritize responding to the new command and interrupt the current scheduled turning program, resuming the timer function only after the new command has been executed. Furthermore, the timer automatically updates the remaining time display after each turning action, showing a countdown on the screen, allowing medical staff or patients to easily track the next turning time. This scheduled turning function not only reduces the workload of medical staff but also ensures that patients can adjust their position on time and as needed, effectively preventing complications such as pressure injuries.

[0031] As an optional embodiment of the present invention, an alarm may also be included, connected to the controller.

[0032] The alarm in this embodiment is an audible and visual alarm, used to issue a warning signal when an abnormal situation occurs during mattress use. Specifically, when the pressure detector detects that the air pressure of any airbag exceeds the preset safety upper limit (e.g., 85 kPa) or falls below the lower limit (e.g., 8 kPa), the controller will immediately trigger the alarm to emit a high-frequency buzzer sound, while the red warning light flashes, and the specific fault location (e.g., "Left airbag 2nd airbag air pressure too high") and error code (e.g., E-02) are displayed on the control panel screen.

[0033] As an optional embodiment of the present invention, the control valve 4 on the right air cushion 2 and the control valve 4 on the left air cushion 3 are mutually self-locking.

[0034] It should be noted that this self-locking design means that when one of the control valves 4 on the right air cushion 2 is opened for inflation or depressurization, all control valves 4 on the left air cushion 3 will automatically lock and cannot be operated; and vice versa. This design effectively prevents both air cushions from inflating or depressurizing simultaneously due to accidental operation during turning, which could lead to patient instability or equipment malfunction. For example, if the control button on the left air cushion 3 is accidentally touched while turning to the right, the control valve 4 on the left air cushion 3 will not respond due to the self-locking mechanism, ensuring the smooth turning action. At the same time, the self-locking design also prevents accidental inflation or depressurization due to circuit faults or signal interference, further improving the safety and reliability of the equipment.

[0035] As an optional embodiment of the present invention, it may also include a data storage unit connected to the controller.

[0036] It should be noted that the data storage unit uses non-volatile memory (such as EEPROM or Flash memory), which can store key data during mattress operation for a long time. The specific stored content includes: timestamps of each rollover (accurate to the second), rollover direction (left / right), actual rollover angle (converted from air pressure value), inflation / depression time curves of each airbag, abnormal events recorded by the pressure detector (such as overpressure / underpressure) and corresponding alarm codes.

[0037] Although embodiments of the present 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 present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A medical turning mattress, characterized in that, include: Base plate (1); The right air cushion (2) is located on one side of the base plate (1), and the right air cushion (2) is also provided with a control valve (4). The left air cushion (3) is located on the other side of the base plate (1). The left air cushion (3) is also equipped with a control valve (4) and is symmetrical to the right air cushion (2). The controller is electrically connected to the control valve (4) and is used to control the working state of the control valve (4); A control panel, electrically connected to the controller, is used to send control commands to the controller; A timer, located within the control panel and electrically connected to the controller, is used to set the turning-over time interval and send a turning-over signal to the controller. A pressure detector, connected to the controller, is used to monitor the air pressure inside the right air pad (2) and the left air pad (3); An air pump is connected to the controller.

2. The medical turning mattress as described in claim 1, characterized in that, The right air cushion (2) includes n right air bladders (201), and each right air bladder (201) is provided with a control valve (4). When all the right air bladders (201) are inflated, the right air cushion (2) is fan-shaped.

3. The medical turning mattress as described in claim 1, characterized in that, The left air cushion (3) includes k left air bladders (301), and each left air bladder (301) is provided with a control valve (4). When all the left air bladders (301) are inflated, the left air cushion (3) is fan-shaped.

4. The medical turning mattress as described in claim 1, characterized in that, The base plate (1) is made of high-strength, lightweight material.

5. A medical turning mattress as described in claim 1, characterized in that, The control panel is equipped with a display screen to show the turning time, air pressure value, and working status information; it also has operation buttons for medical staff or patients to set parameters and control the operation.

6. A medical turning mattress as described in claim 1, characterized in that, It also includes an alarm, which is connected to the controller.

7. A medical turning mattress as described in claim 1, characterized in that, The control valve (4) on the right air cushion (2) and the control valve (4) on the left air cushion (3) are mutually self-locking.

8. A medical turning mattress as described in claim 1, characterized in that, The right air cushion (2) and the left air cushion (3) are made of medical-grade elastic material.

9. A medical turning mattress as described in claim 1, characterized in that, It also includes a data storage unit connected to the controller.

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