Multifunctional pressure-sore-preventing body position adjusting equipment for ICU (Intensive Care Unit) ward

Abstract

The invention relates to the technical field of medical nursing instruments, in particular to multifunctional pressure sore prevention body position adjusting equipment for an ICU ward, which comprises a mattress, and a plurality of hydraulic lifting cylinders, hydraulic oil ways and hydraulic oil pumps are arranged on the mattress to form a uniformly distributed pressure management system. The hydraulic oil pump is installed on the side of the mattress and communicated with the hydraulic lifting cylinder through a branch oil way, and the flow divider valve and the flow meter guarantee pressure balance of all areas. The supporting module is rotationally installed at the top end of the hydraulic lifting cylinder through a universal ball, the angle can be flexibly adjusted, different body position requirements can be met, the supporting module comprises a bottom plate and multiple layers of elastic cushions, excellent buffering and supporting effects are provided, and the supporting spring frame is arranged to enhance the structural stability. And the elastic cushion is fixed in the bottom plate placing groove through bolts and is convenient to disassemble and replace. The wireless intelligent pressure sensor in the embedded sleeve monitors pressure changes in real time and transmits data to the controller through the wireless communication module, and automatic body position adjustment is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of medical nursing equipment, and in particular to a multifunctional anti-pressure sore body position adjustment device for an ICU ward. Background Art

[0002] In the ICU ward, long-term bedridden patients are prone to pressure sores due to continuous pressure on local tissues. The existing technology mainly uses air cushion beds, static support mattresses or manual body position adjustment devices to prevent them, but there are still the following defects:

[0003] Air mattress adjustment hysteresis: Traditional air mattresses rely on alternating inflation and deflation of air bags to achieve pressure dispersion, but the air pressure adjustment speed is slow (response delay > 2 seconds), and the single-layer air bag structure is prone to collapse, resulting in uneven support (local pressure fluctuations > 15%).

[0004] Static support mattresses have poor adaptability: fixed mattresses made of memory foam or sponge materials cannot dynamically adjust the support points according to the patient's body shape. Long-term use can easily form shear force, increasing the risk of skin damage.

[0005] Manual adjustment is inefficient: Medical staff are required to manually turn the patient over or use pillows to adjust the body position. This operation is time-consuming and lacks precision (body position angle error > 5°), making it difficult to meet the real-time needs of critically ill patients.

[0006] Application bottlenecks of existing hydraulic technology

[0007] Some improvement plans attempt to introduce hydraulic systems to assist in body position adjustment, but there are significant drawbacks:

[0008] Single oil circuit design: The traditional hydraulic system adopts a single oil circuit for centralized oil supply. When multiple lifting cylinders are linked, uneven flow distribution (error> 10%) is prone to occur, resulting in tilting of the support surface or local overpressure.

[0009] Lack of dynamic feedback mechanism: Hydraulic adjustment relies on preset programs or manually input parameters and cannot perceive changes in body pressure distribution in real time. The adjustment strategy is out of touch with the actual needs of patients. Summary of the invention

[0010] 1. Technical issues to be resolved

[0011] In view of the deficiencies of the prior art, the present invention provides a multifunctional anti-pressure sore body position adjustment device for an ICU ward.

[0012] (II) Technical solution

[0013] To achieve the above object, the present invention provides the following technical solutions: A multifunctional anti-pressure ulcer body position adjustment device for an ICU ward of the present invention includes a mattress, a support module and a hydraulic system are provided on the mattress, the hydraulic system includes a hydraulic lifting cylinder, a hydraulic oil circuit and a hydraulic oil pump, a plurality of hydraulic lifting cylinders are arranged on the mattress, the hydraulic oil pump is installed on the side of the mattress, the hydraulic oil pump is connected to the hydraulic lifting cylinder through the hydraulic oil circuit, a flow dividing valve and a flow meter are provided on the hydraulic oil circuit, and the support module is rotationally installed at the top of the lifting rod of the hydraulic lifting cylinder through a universal ball.

[0014] Preferably, the support module includes a bottom plate and an elastic pad, the elastic pad is installed on the bottom plate, and the universal ball is installed at the bottom end of the bottom plate.

[0015] Further preferably, the elastic pad sequentially includes a 3D fabric layer one, a rigid PK cotton layer one, a spring layer, a rigid PK cotton layer two, a parallel net layer, a rebound sponge layer, a down alternative layer, a latex layer and a 3D fabric layer two from bottom to top. A pad cover is wrapped outside the elastic pad, and a supporting spring frame is arranged outside the spring layer.

[0016] Again preferably, a placement groove is provided on the bottom plate, a plurality of mounting holes are arranged around the side of the placement groove, a fixing plate is arranged on the side of the pad cover and the fixing plate is located inside the pad cover. Connecting holes are provided on the pad cover and the fixing plate, bolts penetrate through the mounting holes, the elastic pad is embedded in the placement groove, and the bolts are connected to the mounting holes and the connecting holes through a threaded structure.

[0017] Preferably, the hydraulic oil circuit is distributed inside the mattress, the hydraulic oil circuit is connected to the hydraulic lifting cylinder through a branch oil circuit, and the flow dividing valve and the flow meter are arranged on the branch oil circuit.

[0018] Further preferably, the hydraulic oil circuit has several rows, and a hydraulic oil pump is arranged on each row of hydraulic oil circuits, and a hydraulic oil barrel is arranged on the hydraulic oil pump.

[0019] Again preferably, it further includes a controller, the controller is electrically connected to the hydraulic oil pump, the flow dividing valve and the flow meter, and a wireless communication device is arranged on the controller.

[0020] Preferably, a network point distribution model is arranged on the controller, and the network point distribution model is used to mark each flow dividing valve, flow meter and hydraulic oil pump.

[0021] Further preferably, an embedding sleeve is arranged on the elastic pad, a wireless intelligent pressure sensor is installed in the embedding sleeve, and the wireless intelligent pressure sensor transmits signals to the controller through a wireless communication module.

[0022] More preferably, the nested sleeve is located above the spring layer in the spring pad.

[0023] (III) Advantageous Effects

[0024] Compared with the prior art, the present invention provides a multifunctional anti-pressure ulcer body position adjustment device for an ICU ward, having the following advantageous effects:

[0025] By arranging a plurality of hydraulic lifting cylinders on the mattress and equipping with a hydraulic oil circuit and a hydraulic oil pump system, the height and angle of the support module can be flexibly adjusted according to the real-time needs of the patient. This design not only effectively disperses the pressure on various parts of the body, reduces the risk of pressure ulcers, but also improves the comfort of the patient.

[0026] The support module includes a bottom plate and an elastic pad with a multi-layer structure, which are, from bottom to top, a 3D fabric layer, a rigid PK cotton layer, a spring layer, etc., providing excellent buffering and support effects. In particular, the support spring frame arranged outside the spring layer enhances the stability of the overall structure and ensures the reliability of long-term use. In addition, the design of the universal ball enables the support module to freely rotate and tilt within a certain range to adapt to the needs of different body positions.

[0027] The flow dividing valve and flow meter in the hydraulic system precisely control the pressure and flow rate of each hydraulic lifting cylinder, ensuring uniform and stable support. The controller is combined with a wireless communication device to achieve remote monitoring and operation, facilitating management and maintenance by medical staff. The network distribution model marks the positions of all key components, facilitating quick positioning and troubleshooting.

[0028] In particular, the wireless intelligent pressure sensor nested in the elastic pad can real-time monitor the pressure change and transmit the data to the controller through the wireless communication module to achieve automatic body position adjustment. This feature greatly reduces the work burden of medical staff and improves the accuracy and response speed of nursing at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a top view schematic diagram of the present invention;

[0030] Figure 2 It is a side view structural schematic diagram of the present invention;

[0031] Figure 3 It is a mattress cross-sectional schematic diagram of the present invention;

[0032] Figure 4 It is an elastic pad cross-sectional schematic diagram of the present invention;

[0033] In the figure: 1. Mattress; 2. Hydraulic lifting cylinder; 3. Bottom plate; 4. Elastic pad; 5. Hydraulic oil pump; 6. Hydraulic oil barrel; 7. Universal ball; 8. Hydraulic oil circuit; 9. Branch oil circuit; 10. Flowmeter; 11. Flow dividing valve; 12. Placing groove; 13. Pad sleeve; 14. First 3D fabric layer; 15. First rigid PK cotton layer; 16. Spring layer; 17. Second rigid PK cotton layer; 18. Parallel net layer; 19. Rebound sponge layer; 20. Down and feather layer; 21. Latex layer; 22. Second 3D fabric layer; 23. Support spring frame; 24. Fixed plate; 25. Connecting hole; 26. Embedded sleeve; 27. Wireless intelligent pressure sensor; 28. Controller. Detailed implementation manner

[0034] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0035] Please refer to Figures 1-4 , a multifunctional anti-pressure ulcer body position adjustment device for an ICU ward of the present invention, includes a mattress 1, a support module and a hydraulic system are provided on the mattress 1. The hydraulic system includes a hydraulic lifting cylinder 2, a hydraulic oil circuit 8 and a hydraulic oil pump 5. A plurality of hydraulic lifting cylinders 2 are arranged on the mattress 1. The hydraulic oil pump 5 is installed on the side of the mattress 1. The hydraulic oil pump 5 is communicated with the hydraulic lifting cylinder 2 through the hydraulic oil circuit 8. A flow dividing valve 11 and a flowmeter 10 are provided on the hydraulic oil circuit 8. The support module is rotationally installed at the top of the lifting rod of the hydraulic lifting cylinder 2 through a universal ball 7.

[0036] The multifunctional anti-pressure ulcer body position adjustment device for the ICU ward mainly realizes the intelligent adjustment of the patient's body position through the hydraulic system and the support module to prevent pressure ulcers. The device includes a mattress 1 provided with a plurality of hydraulic lifting cylinders 2. Each hydraulic lifting cylinder 2 is connected to the hydraulic oil circuit 8 and its lifting action is controlled by the hydraulic oil pump 5. The support module is installed at the top of the hydraulic lifting cylinder 2 through a universal ball 7 and can rotate and tilt freely according to needs to provide the best support effect.

[0037] Core working process

[0038] Pressure monitoring and data acquisition:

[0039] The wireless intelligent pressure sensor 27 (nested above the spring layer 16 of the elastic pad 4) real-time monitors the pressure values of various parts of the patient's body and transmits them to the controller 28 through the wireless communication module.

[0040] The sensor data is mapped to the grid distribution model of the controller 28 in a grid form to generate a real-time pressure distribution heat map.

[0041] For the wireless intelligent pressure sensor 27, relevant devices with mature application technologies can be used, such as the Lora wireless intelligent pressure sensor 27.

[0042] Data analysis and instruction generation:

[0043] Based on the preset threshold (such as local pressure > 32 mmHg) or the pressure-time integral model, the controller 28 identifies high-risk areas (such as the sacrococcygeal region and the heel).

[0044] Combined with the patient's body position requirements (such as supine or lateral position), adjustment instructions for the specific hydraulic lifting cylinder 2 are generated.

[0045] Dynamic adjustment of the hydraulic system:

[0046] The hydraulic oil pump 5 is started, and hydraulic oil is delivered to the target hydraulic lifting cylinder 2 through the branch oil circuit 9.

[0047] The flow valve 11 and the flowmeter 10 cooperate to control the oil circuit flow, and precisely adjust the lifting height of the hydraulic lifting cylinder 2 (adjustment range: 0 - 15 cm).

[0048] The support module adaptively rotates through the universal ball 7 structure to ensure uniform fitting of the elastic pad 4 with the patient's body surface and disperse the pressure.

[0049] Circular feedback and optimization:

[0050] After adjustment, the pressure sensor continuously feeds back data, and the controller 28 dynamically corrects the hydraulic parameters until the pressure distribution reaches the standard.

[0051] If the overpressure persists, an audible and visual alarm is triggered and the medical staff is notified.

[0052] Preferred technical solution and working principle

[0053] Hydraulic system optimization solution

[0054] Multi-row independent oil circuit design:

[0055] The hydraulic oil circuit 8 is divided into several rows within the mattress 1, and each row is equipped with an independent hydraulic oil pump 5 and a hydraulic oil barrel 6 to avoid a single-point failure affecting the whole.

[0056] The branch oil circuit 9 realizes flow zone control through the flow valve 11 to ensure independent adjustment of adjacent lifting cylinders without interference.

[0057] Precise flow control:

[0058] The flowmeter 10 monitors the flow rate of the branch oil circuit 9 in real time, and combines with the algorithm of the controller 28 (such as PID adjustment) to dynamically adjust the opening degree of the flow dividing valve 11, ensuring stable lifting speed (accuracy ±0.5mm / s).

[0059] Support module structure scheme

[0060] Elastic pad 4 is designed in layers:

[0061] From the bottom layer to the surface layer: 3D fabric layer one 14 (breathable and moisture-conductive) → rigid PK cotton layer one 15 (basic support) → spring layer 16 (dynamic buffering) → rigid PK cotton layer two 17 (anti-collapse) → parallel mesh layer 18 (pressure equalization) → rebound sponge layer 19 (secondary buffering) → down alternative layer 20 (soft and fitting) → latex layer 21 (antibacterial and anti-allergic) → 3D fabric layer two 22 (skin-friendly and wear-resistant).

[0062] The support spring frame 23 wraps the spring layer 16, restricts the lateral deformation, and enhances the vertical support force.

[0063] Modular fixed structure:

[0064] The elastic pad 4 is locked with the mounting holes of the bottom plate 3 through bolts, and the inner fixing plate 24 of the pad sleeve 13 is connected to the bottom plate 3, realizing quick disassembly, assembly and cleaning.

[0065] Intelligent control scheme

[0066] Wireless pressure sensing network:

[0067] The wireless intelligent pressure sensor 27 is embedded in the embedding sleeve 26 of the elastic pad 4 (above the spring layer 16), directly contacts the patient's body surface, and the monitoring accuracy reaches ±1mmHg.

[0068] The sensor communicates with the controller 28 through low-power Bluetooth, and the data update frequency ≤1 second.

[0069] Network point distribution model:

[0070] The controller 28 builds a virtual grid model inside, maps each hydraulic lifting cylinder 2, flow dividing valve 11 and sensor into independent coordinate points, and realizes precise control of "one policy for one point".

[0071] The controller 28 in this technical solution adopts related devices with mature application technologies, such as ARM Cortex-M series microcontrollers 28, programmable logic controllers 28 (PLC) and medical-grade dedicated controllers 28.

[0072] Detailed working process

[0073] Initialization settings:

[0074] Place the patient on the mattress 1 and start the device.

[0075] The controller 28 reads preset parameters or receives new setting instructions via wireless communication.

[0076] Real-time monitoring:

[0077] The wireless intelligent pressure sensor 27 starts to work and continuously monitors the pressure distribution of various parts of the patient's body.

[0078] The data is transmitted to the controller 28 via the wireless communication module for analysis and processing.

[0079] Automatic adjustment:

[0080] Based on the pressure distribution, the controller 28 calculates the optimal support mode.

[0081] Send instructions to the hydraulic oil pump 5, supply oil to the corresponding hydraulic lifting cylinder 2 through the hydraulic oil circuit 8, and adjust its height.

[0082] The support module changes its position with the movement of the hydraulic lifting cylinder 2 to form a position suitable for the patient.

[0083] Manual intervention (if needed):

[0084] Medical staff can directly input adjustment commands through the interface of the controller 28 or use a handheld remote control device for fine-tuning.

[0085] The system will record all manual adjustment operations for subsequent reference.

[0086] Regular inspection and maintenance:

[0087] Regularly check the operating conditions of the hydraulic system to ensure that all components are working properly.

[0088] Update the network distribution model in the controller 28, and add or remove information about certain flow control valves 11, flow meters 10, and hydraulic oil pumps 5.

[0089] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multifunctional anti-pressure ulcer body position adjustment device for an ICU ward, characterized in that, It includes a mattress (1), on which a support module and a hydraulic system are provided. The hydraulic system includes hydraulic lifting cylinders (2), a hydraulic oil circuit (8), and a hydraulic oil pump (5). A number of hydraulic lifting cylinders (2) are arranged on the mattress (1). The hydraulic oil pump (5) is installed on the side of the mattress (1). The hydraulic oil pump (5) is connected to the hydraulic lifting cylinders (2) through the hydraulic oil circuit (8). A flow dividing valve (11) and a flow meter (10) are provided on the hydraulic oil circuit (8). The support module is rotatably installed at the top of the lifting rod of the hydraulic lifting cylinder (2) through a universal ball (7).

2. The multifunctional pressure ulcer prevention body position adjustment device for an ICU ward according to claim 1, characterized in that, The support module includes a bottom plate (3) and an elastic pad (4). The elastic pad (4) is installed on the bottom plate (3). The universal ball (7) is installed at the bottom end of the bottom plate (3).

3. The multifunctional pressure ulcer prevention body position adjustment device for an ICU ward according to claim 2, wherein, The elastic pad (4) sequentially includes a 3D fabric layer one (14), a hard PK cotton layer one (15), a spring layer (16), a hard PK cotton layer two (17), a parallel net layer (18), a rebound sponge layer (19), a down alternative layer (20), a latex layer (21), and a 3D fabric layer two (22) from bottom to top. The outside of the elastic pad (4) is wrapped with a pad cover (13). A supporting spring frame (23) is arranged outside the spring layer (16).

4. The multi-functional pressure ulcer prevention body position adjustment device for an ICU ward according to claim 3, characterized in that, A placement groove (12) is provided on the bottom plate (3). A number of mounting holes are arranged around the side of the placement groove (12). A fixing plate (24) is arranged on the side of the pad cover (13), and the fixing plate (24) is located inside the pad cover (13). Connecting holes (25) are provided on the pad cover (13) and the fixing plate (24). Bolts penetrate through the mounting holes. The elastic pad (4) is embedded in the placement groove (12), and the bolts are connected to the mounting holes and the connecting holes (25) through a threaded structure.

5. The multifunctional pressure ulcer prevention body position adjustment device for an ICU ward according to claim 4, characterized in that, The hydraulic oil circuit (8) is distributed inside the mattress (1). The hydraulic oil circuit (8) is connected to the hydraulic lifting cylinders (2) through branch oil circuits (9). The flow dividing valve (11) and the flow meter (10) are arranged on the branch oil circuits (9).

6. The multifunctional pressure ulcer prevention body position adjustment device for an ICU ward according to claim 5, characterized in that, The hydraulic oil circuit (8) has several rows, and a hydraulic oil pump (5) is arranged on each row of the hydraulic oil circuit (8). A hydraulic oil barrel (6) is arranged on the hydraulic oil pump (5).

7. The multifunctional pressure ulcer prevention body position adjustment device for an ICU ward according to claim 6, wherein, It further includes a controller (28). The controller (28) is electrically connected to the hydraulic oil pump (5), the flow dividing valve (11), and the flow meter (10). A wireless communication device is arranged on the controller (28).

8. The multifunctional anti-pressure ulcer body position adjustment device for an ICU ward according to claim 7, characterized in that, A network point distribution model is arranged on the controller (28). The network point distribution model is used to mark each flow dividing valve (11), flow meter (10), and hydraulic oil pump (5).

9. The multifunctional anti-pressure ulcer body position adjustment device for an ICU ward according to claim 8, characterized in that, An embedding sleeve (26) is arranged on the elastic pad (4). A wireless intelligent pressure sensor (27) is installed inside the embedding sleeve (26). The wireless intelligent pressure sensor (27) transmits signals to the controller (28) through a wireless communication module.

10. The multifunctional anti-pressure ulcer body position adjustment device for an ICU ward according to claim 9, characterized in that, The embedding sleeve (26) is located in the part of the spring pad above the spring layer (16).

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