Self-powered body position adjustment pad

Abstract

The utility model relates to a kind of self-driving body position adjusting pad, including symmetrically arranged left inflatable pad, right inflatable pad and integrated air pressure regulation and control device and operating switch;Air pressure regulation and control device is connected respectively left inflatable pad and right inflatable pad by gas circuit pipeline;The air pressure regulation and control device includes air pump and solenoid valve, for controlling the inflation and exhaust of inflatable pad;Among them, operating switch is electrically connected with solenoid valve, and the operating switch is equipped with left control button and right control button, respectively independently triggers the inflation operation of left inflatable pad or right inflatable pad, and is pushed by one side inflation to promote patient body position overturning;Its advantage is shown in: the device is combined structure and pressure dispersion, individualized adjustment function optimization by symmetric inflatable pad, air pressure regulation and control device and physical operating switch, realizes patient autonomous operation, safety enhancement and comfort improvement, effectively solves the clinical pain points, such as traditional inflatable pad relies on artificial, single function, many safety hazards.

Description

Technical Field

[0001] This invention belongs to the field of medical device technology, and in particular to a self-driven body position adjustment pad. Background Technology

[0002] In the field of medical care, positional management of long-term bedridden patients (such as those after orthopedic surgery or paralyzed patients) is a crucial aspect of preventing pressure ulcers and promoting blood circulation. Traditional positional adjustment methods mainly rely on medical staff manually assisting patients in turning over or using basic inflatable mattresses for support. However, existing technologies have the following limitations:

[0003] 1. Frequent reliance on medical staff to assist with turning over not only increases labor costs and workload, but may also increase the patient's psychological stress (such as privacy exposure);

[0004] 2. Currently widely used inflatable mattresses (such as single-cavity inflatable mattresses) require manual valve adjustment of air pressure. Nursing staff need to frequently check and operate the air pump, resulting in low work efficiency and failing to meet the patient's need to adjust their position at any time.

[0005] 3. Although some semi-automatic inflation devices support air pressure adjustment, they still require nursing staff to operate. Patients cannot control them independently, which can easily delay care, especially at night or in emergency situations.

[0006] Therefore, in summary, there is an urgent need for a self-driven body position adjustment pad that is simple in structure, intuitive in operation, and can be independently controlled by the patient. Utility Model Content

[0007] The purpose of this invention is to solve the above-mentioned problems in the prior art and to provide a self-driven body position adjustment pad.

[0008] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0009] A self-driven body position adjustment pad includes: a left inflatable pad and a right inflatable pad symmetrically arranged; an integrated air pressure control device connected to the left and right inflatable pads respectively via air passages, the air pressure control device including an air pump and a solenoid valve for controlling the inflation and deflation of the inflatable pads by the air passages; and an operating switch electrically connected to the solenoid valve, the operating switch having a left control button and a right control button, which independently trigger the inflation operation of the left or right inflatable pad, thereby promoting the patient's body position rotation through unilateral inflation.

[0010] Preferably, the surfaces of the left and right air cushions are made of elastic, skin-friendly material, and the interiors have a uniformly distributed honeycomb support structure. The honeycomb support structure is made of elastic polymer material to evenly distribute pressure and reduce the risk of pressure sores.

[0011] Preferably, the air passage is an independent dual-pass design, including a left air passage and a right air passage, which are respectively sealed to the left inflation pad and the right inflation pad. The solenoid valve is a bidirectional control valve used to switch between inflation and deflation states. The switching action of the solenoid valve is triggered by the button of the operation switch.

[0012] Preferably, the operation switch is a physical button switch, fixed to the side of the inflatable pad or connected to a position accessible to the patient via a cable, and the surfaces of the left and right control buttons are provided with anti-slip textures.

[0013] Preferably, the left and right air cushions are divided into multiple independent partitioned air chambers along their length, and each partitioned air chamber is connected to the solenoid valve through an independent air passage to achieve independent local air pressure adjustment.

[0014] Preferably, the bottom of the inflatable pad is bonded with an anti-slip silicone layer, and the surface of the anti-slip silicone layer is provided with an array of raised structures to increase the friction with the bed surface.

[0015] Preferably, the device is suitable for the autonomous turning care of post-orthopedic patients and long-term bedridden patients, and the left and right body positions can be switched by unilateral air inflation drive.

[0016] Due to the adoption of the above technical solution, the beneficial effects obtained by this utility model include:

[0017] 1. Through structural innovation (such as the combination of symmetrical inflatable pads, air pressure control devices and physical operation switches) and functional optimization (such as pressure dispersion and personalized adjustment), this device enables patients to operate independently, enhances safety and improves comfort, and effectively solves the clinical pain points of traditional inflatable pads, such as reliance on manual labor, limited functionality and multiple safety hazards.

[0018] 2. This utility model is applicable to the independent turning care of post-orthopedic surgery patients and long-term bedridden patients. It achieves left and right position switching through unilateral air inflation drive; during the process, unilateral air inflation drive can be achieved through physical buttons, without relying on nursing staff.

[0019] 3. The honeycomb support structure and partitioned air chamber design in this utility model reduce the risk of pressure sores and meet personalized rehabilitation needs; the anti-slip silicone layer at the bottom of the inflatable pad enhances the stability of the device, prevents the pad from shifting during body position adjustment, and ensures safe use. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of an embodiment of the self-driven body position adjustment pad of this utility model.

[0021] Figure 2 This is a schematic diagram of the structure of the anti-slip silicone layer at the bottom of the self-driven body position adjustment pad of this utility model.

[0022] Figure 3 This is a partial structural diagram of the air pressure regulation device, air pipeline, and partitioned air chamber of this utility model.

[0023] Figure 4 This is a partial structural schematic diagram of the partitioned air chamber of this utility model.

[0024] Figure 5 This is a schematic diagram of the control electrical appliance of this utility model.

[0025] Figure 6 This is a cross-sectional schematic diagram of the contact surface between the air cushion and the patient under different modes of the control electrical appliance of this utility model.

[0026] The attached figures are labeled as follows:

[0027] 1. Left air cushion; 2. Right air cushion;

[0028] 3. Air pressure regulating device; 31. Air pump; 32. Solenoid valve;

[0029] 33. Gas line; 331. Left gas line; 332. Right gas line;

[0030] 4. Operation switch; 41. Left control button; 42. Right control button;

[0031] 5. Honeycomb support structure; 6. Partitioned air chambers; 7. Anti-slip silicone layer. Detailed Implementation

[0032] Please see Figure 1-5As shown, this utility model mainly provides a self-driven body position adjustment pad, including a left air pad 1 and a right air pad 2. The left air pad 1 and right air pad 2 are symmetrically placed on both sides of the patient's body, and their surfaces are made of elastic, skin-friendly material (such as medical-grade silicone). The interior is filled with a uniformly distributed honeycomb support structure 5. The use of skin-friendly elastic material and the honeycomb support structure (the honeycomb structure material is medical-grade polyurethane) evenly distributes body pressure, reduces local pressure, decreases the risk of pressure sores, and improves user comfort. An integrated air pressure regulating device 3 is connected to the left air pad 1 and right air pad 2 respectively through air pipes 33. The air pressure regulating device 3 includes an air pump 31 and a solenoid valve 32. 3 is used to control the inflation and deflation of the air cushion. Specifically, the air passage 33 has an independent dual-passage design, with the left air passage 331 and the right air passage 332 connected to the left air cushion 1 and the right air cushion 2, respectively. The solenoid valve 32 is a bidirectional control valve used to switch between inflation and deflation states. The independent dual-passage air passage and bidirectional solenoid valve design ensure that the inflation / deflation of the air cushion is independently controllable, avoids air passage interference, and improves adjustment accuracy and reliability. In this embodiment, the operation switch 4 is electrically connected to the solenoid valve 32. The operation switch 4 has a left control button 41 and a right control button 42, which independently trigger the inflation operation of the left air cushion 1 or the right air cushion 2, and push the patient's body position to rotate through unilateral inflation.

[0033] In this embodiment, the device, through a combination of a double-sided inflatable pad, an air pressure regulating device, and a physical operation switch, enables the patient to independently control their body position rotation with a single button, reducing reliance on nursing staff and improving ease of operation. The air pump has a power of 12V / 50W, a maximum air pressure output of 30kPa, and an inflation rate of 5L / min, ensuring that a single-sided inflatable pad can be fully inflated within 30 seconds. Its solenoid valve is a bidirectional two-position three-way valve (model SMC VQZ21U) with a response time of 0.1 seconds. A pulse signal (5V DC) is sent via the operation switch button to trigger the solenoid valve to switch the airflow direction.

[0034] In this embodiment, the operation switch 4 can be a physical button switch, fixed to the side of the inflatable pad or connected to a patient-accessible location via a cable. The left control button 41 and the right control button 42 have anti-slip textures on their surfaces (the anti-slip textures can also be set as independent raised shapes, such as left and right arrows, to increase the tactile feel for the patient and facilitate accurate operation). The physical buttons are directly integrated into the inflatable pad or connected externally via a cable, simplifying the operation process and ensuring that the patient (especially those with limited limb mobility) can easily reach the control buttons. In addition, one end of the operation switch is also connected to a power source to provide energy to the entire inflation device. This power source can be a portable lithium battery or a 220V external power source, and is electrically connected to the inflation device via a wire to provide sufficient energy to the entire device.

[0035] It should be noted that the operating switch can also be a physical self-locking button. When the left control button is pressed, the solenoid valve switches to the left air path inflation mode, and the air pump is started simultaneously. After releasing the button, the solenoid valve resets to the deflation state (or can be switched to continuous inflation by pressing and holding for 3 seconds). Specifically, the operating switch 4 is linked to the solenoid valve 32 and the air pump 31 via a DC signal, and the control logic is as follows:

[0036] When the left control button 41 is pressed, a one-way pulse signal is triggered → the solenoid valve 32 switches to the left air passage 331 conduction state → the air pump 31 starts and inflates the left air pad 1.

[0037] After releasing the button, the solenoid valve 32 automatically resets to the deflation state (or can be switched to continuous inflation mode by pressing and holding for 3 seconds).

[0038] like Figure 4 , Figure 5 As shown in this embodiment, the left air cushion 1 and the right air cushion 2 are divided into multiple independent partitioned air chambers 6 along the length direction. Each partitioned air chamber 6 is connected to a bidirectional solenoid valve 32 through an independent air passage 333 (and each air chamber can be controlled by an independent micro solenoid valve (model Festo MHE2)) to achieve independent local air pressure adjustment. In addition, the partitioned air chambers, together with the independent air passages, can support local air pressure adjustment for different areas of the body (such as the waist and legs) to meet personalized rehabilitation needs.

[0039] like Figure 2 As shown, in this embodiment, an anti-slip silicone layer 7 is adhered to the bottom of the inflatable pad. The surface of the anti-slip silicone layer is provided with an array of raised structures to increase the friction with the bed surface. Furthermore, the anti-slip silicone layer at the bottom of the inflatable pad enhances the stability of the device, prevents the pad from shifting during body position adjustment, and ensures safety during use.

[0040] like Figure 6 As shown, the working principle of this utility model is as follows:

[0041] Turning to the left: Press the right control button 42, the solenoid valve 32 opens the right air passage 332, the air pump 31 inflates the right air cushion 2, pushing the patient's body to the left; and as the right air cushion 2 gradually rises, a gentle pushing force will be generated, steadily pushing the patient's body to the left, achieving easy turning over;

[0042] Turning to the right: Press the left control button 41, the solenoid valve 32 opens the left air passage 331, the air pump 31 inflates the left air cushion 1, pushing the patient's body to the right; similarly, as the air is continuously inflated, the left air cushion 1 will inflate and rise in a short time, successfully turning the patient to the right.

[0043] Safety Protection: The bottom of the inflatable pad is equipped with an anti-slip silicone layer 7 to prevent displacement; a pressure sensor can also be installed near the inflatable pad to monitor the air pressure inside the pad in real time, and control the solenoid valve to automatically stop inflation or deflation according to a preset threshold. When the air pressure exceeds the threshold, the power supply to the air pump will be automatically cut off. The sensor can be installed at the end of the left / right air passage pipe (331 / 332), near the inlet of the inflatable pad; when the air pressure is ≥30kPa, the sensor can send a signal to the microcontroller (MCU, model STM32F103) to trigger the air pump to cut off power and switch the solenoid valve to the deflation mode.

[0044] The method of using this utility model is as follows:

[0045] Place the left and right air cushions symmetrically on either side of the patient's body; the patient selects the left or right control button via the operating switch to trigger the inflation of one side of the air cushion; after inflation is complete, the patient can adjust to a comfortable position; when repositioning is required, press the vent button on the operating switch to switch the solenoid valve to the vent state.

[0046] When performing zoned air chamber adjustment, for fracture patients, the air pressure of a specific zone is adjusted through independent airway 333, for example, by elevating the affected limb area to avoid compressing the wound.

[0047] It should be noted that this invention is suitable for the self-turning care of post-orthopedic surgery patients and long-term bedridden patients. Users can adjust the pad themselves according to their body's feedback. For example, for those who spend long hours at a desk, changing their position can prevent prolonged pressure on blood vessels, promote blood circulation, and prevent limb numbness. During the rehabilitation phase, patients can adjust the pad themselves according to their rehabilitation plan to maintain a specific position and cooperate with rehabilitation training. For fracture patients, self-adjustment of position can strengthen muscle strength and accelerate the recovery of limb function. The low difficulty of care allows users to adjust their position independently, greatly reducing the workload of caregivers, minimizing the need for frequent assistance in turning patients, and protecting patient privacy. In addition, the physical button enables unilateral inflation, eliminating the need for caregivers. The honeycomb support structure and partitioned air chamber design reduce the risk of pressure sores and meet personalized rehabilitation needs. The anti-slip silicone layer at the bottom of the inflatable pad enhances the stability of the device, prevents the pad from shifting during position adjustment, and ensures safe use.

[0048] The foregoing descriptions and embodiments are provided to enable those skilled in the art to understand and apply this invention. Those skilled in the art will readily make various modifications to these contents and apply the general principles described herein to other embodiments without inventive effort. Therefore, this invention is not limited to the foregoing descriptions and embodiments. Improvements and modifications made by those skilled in the art based on the disclosure of this invention without departing from its scope should be within the protection scope of this invention.

Claims

1. A self-propelled body position adjustment pad, characterized in that, include: The left and right air cushions are symmetrically arranged. An integrated air pressure control device is connected to the left and right air pads respectively through air pipelines. The air pressure control device includes an air pump and a solenoid valve, which are used to control the inflation and deflation of the air pads by the air pipelines. An operating switch is electrically connected to the solenoid valve. The operating switch is equipped with a left control button and a right control button, which independently trigger the inflation operation of the left or right air cushion, thereby pushing the patient's body position to rotate through unilateral inflation.

2. The self-driving body position adjustment pad according to claim 1, characterized in that: The surfaces of the left and right air cushions are made of elastic, skin-friendly material, and the interiors have a uniformly distributed honeycomb support structure. The honeycomb support structure is made of elastic polymer material, which is used to evenly distribute pressure and reduce the risk of pressure sores.

3. The self-driving body position adjustment pad according to claim 1, characterized in that: The air passage is an independent dual-pass design, including a left air passage and a right air passage, which are respectively sealed to the left inflation pad and the right inflation pad. The solenoid valve is a two-way control valve used to switch between inflation and deflation states. The switching action of the solenoid valve is triggered by the button of the operation switch.

4. The self-driving body position adjustment pad according to claim 1, characterized in that: The operating switch is a physical button switch, connected to the solenoid valve or externally connected to a patient-accessible location via a cable. The left and right control buttons have anti-slip textures on their surfaces.

5. The self-driving body position adjustment pad according to claim 1, characterized in that: The left and right air cushions are divided into multiple independent air chambers along their length, and each air chamber is connected to the solenoid valve through an independent air passage to achieve independent local air pressure adjustment.

6. The self-driving body position adjustment pad according to claim 1, characterized in that: The bottom of the inflatable pad is bonded with an anti-slip silicone layer, and the surface of the anti-slip silicone layer has an array of raised structures to increase friction with the bed surface.

7. The self-driving body position adjustment pad according to any one of claims 1-6, characterized in that: The device is suitable for the autonomous turning care of post-orthopedic patients and long-term bedridden patients, and can switch between left and right positions through unilateral air inflation.

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