Breathable mattress structure for preventing pressure sores of bedridden patient

By introducing a support pad structure and ventilation mechanism into the pressure ulcer prevention and breathable mattress, the problems of easy damage and uneven support of breathable mattresses are solved, achieving durability, breathability, and uniform support, thus preventing pressure ulcers.

CN224251685UActive Publication Date: 2026-05-19XIANGYA HOSPITAL CENT SOUTH UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XIANGYA HOSPITAL CENT SOUTH UNIV
Filing Date
2025-05-20
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Existing pressure ulcer-preventing breathable mattresses are prone to damage and lack cushioning performance in pursuit of breathability, failing to effectively distribute body pressure, resulting in uneven support and making it difficult to effectively prevent pressure ulcers.

Method used

The design employs a support pad structure, including equidistantly installed airbags, vents, rubber blocks, and support rods. Combined with a ventilation mechanism, it utilizes an electric push rod to drive a slider and a gear and rack transmission to move the air circulation fan, promoting airflow. In conjunction with springs and telescopic rods, it adjusts pressure distribution, providing uniform support and ventilation.

Benefits of technology

It achieves a balance between durability and breathability of the airbags, preventing pressure sores and keeping the mattress surface dry and comfortable by evenly distributing body pressure and providing effective ventilation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of mattresses, and discloses a pressure sore prevention breathable mattress structure for bedridden patients, which comprises a supporting pad, a plurality of air bags are equidistantly mounted on the top wall of the supporting pad, a plurality of vent holes are equidistantly formed in the top wall of the supporting pad, and a plurality of rubber blocks are equidistantly and fixedly connected to the inner top wall of the supporting pad. First connecting blocks are fixedly connected to the front side and the rear side of the outer wall of the rubber block, second connecting blocks are rotatably connected to the inner sides of the first connecting blocks, supporting rods are fixedly connected to the sides, away from each other, of the outer walls of the two second connecting blocks, and first springs are arranged on the outer walls of the supporting rods. When the rubber block moves downwards, the supporting rod slides in the cylinder to compress the first spring, force is transmitted to the inner wall of the supporting pad through the third connecting block and the fourth connecting block, the telescopic rod below the rubber block compresses the second spring, the elastic force of the first spring helps the rubber block to adjust the position according to the pressure, and uniform supporting is provided for a patient.
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Description

Technical Field

[0001] This utility model relates to the field of mattress technology, and in particular to a breathable mattress structure for preventing pressure sores in bedridden patients. Background Technology

[0002] A mattress is a piece of bedding used to support the human body during sleep and rest. It is usually placed on a bed frame or bed board and is made of a variety of materials. It is designed to provide comfortable support, good breathability, and appropriate softness and firmness to meet people's physical needs during sleep and help people achieve better sleep quality.

[0003] The pressure ulcer prevention and breathable mattress for bedridden patients is a multi-functional mattress designed specifically for long-term bedridden patients. It aims to effectively prevent pressure ulcers while providing patients with a comfortable resting environment. Through special materials, structure and technology, air can circulate freely within the mattress, keeping the surface dry and reducing discomfort and infection risks caused by skin moisture.

[0004] However, some special structures and materials of pressure ulcer-preventing breathable mattresses, such as the air bladders in air mattresses, are relatively easy to damage. For example, if the air bladders rupture, it will not only affect the performance of the mattress, but also require frequent mattress replacement, increasing the cost of use. Current technology uses high-strength, high-elasticity, and wear-resistant rubber materials to make air bladders, which have good pressure resistance and tear resistance, and can withstand long-term pressure and frequent inflation and deflation cycles, making them less prone to rupture or air leakage. However, in pursuit of breathability, breathable mattresses are somewhat lacking in cushioning performance, with uneven firmness or insufficient support for different parts of the body, failing to distribute body pressure well and making it difficult to effectively prevent pressure ulcers. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a breathable mattress structure for preventing pressure sores in bedridden patients, aiming to improve the problem that breathable mattresses in the prior art cannot effectively distribute body pressure.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a breathable mattress structure for preventing pressure sores in bedridden patients, including a support pad. Multiple airbags are equidistantly installed on the top wall of the support pad, and multiple ventilation holes are equidistantly opened on the top wall of the support pad. Multiple rubber blocks are equidistantly fixed to the inner top wall of the support pad. Connecting blocks one are fixedly connected to the front and rear sides of the outer walls of the rubber blocks. Connecting blocks two are rotatably connected to the inner side of the connecting blocks one. Support rods are fixedly connected to the outer walls of two connecting blocks two on opposite sides. Springs one is provided on the outer wall of the support rod. A cylinder is slidably connected to the outer wall of the support rod. Connecting blocks three are fixedly connected to the outer walls of two cylinders on opposite sides. Connecting blocks four are rotatably connected to the outer wall of the connecting blocks three. Two connecting blocks four are fixedly connected to the front and rear sides of the inner wall of the support pad. A telescopic rod is fixedly connected to the bottom wall of the rubber blocks. The telescopic rod is fixedly connected to the middle of the inner bottom wall of the support pad. Spring two is provided on the outer wall of the telescopic rod. A ventilation mechanism is provided inside the support pad for ventilating the support pad.

[0007] As a further description of the above technical solution:

[0008] The ventilation mechanism includes an electric push rod, which is fixedly connected to the rear side of the inner bottom wall of the support pad. A fixing block is fixedly connected to the output end of the electric push rod. A rotating shaft is rotatably connected to the inner bottom wall of the support pad. A gear is fixedly connected to the top of the rotating shaft. Racks are meshed with the front and rear sides of the outer wall of the gear. Slider blocks are fixedly connected to the top walls of the two racks on opposite sides. The fixing block is fixedly connected to the bottom wall of the rear slider. Guide rails are fixedly connected to the front and rear sides of the inner bottom wall of the support pad. The slider is slidably connected to the guide rails. An air circulation fan is provided on the top of the slider.

[0009] As a further description of the above technical solution:

[0010] Mounting holes are provided at all four corners of the top wall of the air circulator fan.

[0011] As a further description of the above technical solution:

[0012] The top wall of the slider is fixedly connected to a bracket, and a gasket is installed on the top wall of the bracket.

[0013] As a further description of the above technical solution:

[0014] The inner wall of the mounting hole is threaded with bolts, and the air circulation fan is fixedly connected to the bracket by bolts.

[0015] As a further description of the above technical solution:

[0016] The outer wall of the support pad has square grooves on both the front and rear sides, and a dustproof net is installed on the inner side of the square grooves.

[0017] As a further description of the above technical solution:

[0018] The airbag has fixing straps installed on both the front and rear sides of its outer wall.

[0019] As a further description of the above technical solution:

[0020] A headrest is installed on the left side of the outer wall of the support pad.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, when the patient applies local pressure to the rubber block, the rubber block moves downward, which causes the support rod to slide and compress the first spring inside the cylinder. The force is transmitted to the inner wall of the support pad through the third and fourth connecting blocks. The telescopic rod under the rubber block compresses the second spring. The elasticity of the first spring helps the rubber block adjust its position according to the pressure, assisting the airbag in dispersing and regulating the pressure, and providing uniform support for the patient.

[0023] 2. In this utility model, the electric push rod pushes the fixed block to move, which in turn drives the slider to move along the guide rail. The rack under the slider causes the gear to rotate on the rotating shaft. The gear drives the rack on the front side to slide in the opposite direction, and the air circulation fan moves in different directions on the slider and works continuously, accelerating the air flow in the support pad and exhausting it through the vents to achieve a ventilation effect. This helps to remove the heat and moisture emitted by the patient, ensuring that the mattress surface is dry and comfortable and preventing pressure sores. Attached Figure Description

[0024] Figure 1 This is a front view of the structure of the pressure ulcer-preventing breathable mattress for bedridden patients proposed in this utility model;

[0025] Figure 2 This is a perspective view of the structure of the pressure-resistant and breathable mattress for bedridden patients proposed in this utility model.

[0026] Figure 3 This is a partial structural breakdown diagram of the pressure ulcer-preventing breathable mattress structure for bedridden patients proposed in this utility model;

[0027] Figure 4 This is a partial exploded view of the structure of the pressure ulcer-preventing breathable mattress for bedridden patients proposed in this utility model;

[0028] Figure 5 This is a schematic diagram of the ventilation mechanism of the breathable mattress structure for preventing pressure sores in bedridden patients proposed in this utility model.

[0029] Legend:

[0030] 1. Support pad; 2. Ventilation mechanism; 201. Electric push rod; 202. Fixing block; 203. Rotating shaft; 204. Gear; 205. Rack; 206. Slider; 207. Guide rail; 208. Air circulator fan; 3. Airbag; 4. Ventilation hole; 5. Rubber block; 6. Connecting block one; 7. Connecting block two; 8. Support rod; 9. Spring one; 10. Cylinder; 11. Connecting block three; 12. Connecting block four; 13. Spring two; 14. Telescopic rod; 15. Mounting hole; 16. Bolt; 17. Bracket; 18. Washer; 19. Square channel; 20. Dustproof net; 21. Fixing strap; 22. Headrest. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figure 2 , Figure 3 and Figure 4This utility model provides an embodiment of a breathable mattress structure for preventing pressure sores in bedridden patients, comprising a support pad 1, multiple airbags 3 equidistantly installed on the top wall of the support pad 1, and multiple ventilation holes 4 equidistantly opened on the top wall of the support pad 1 for air circulation. Multiple rubber blocks 5 are fixedly connected at equal intervals to the inner top wall of the support pad 1. Connecting blocks 6 are fixedly connected to the front and rear sides of the outer walls of the rubber blocks 5, allowing the rubber blocks 5 to drive the connecting blocks 6 to move. Connecting blocks 7 are rotatably connected to the inner side of the connecting blocks 6. Support rods 8 are fixedly connected to the outer walls of the two connecting blocks 7 on opposite sides. Springs 9 are provided on the outer walls of the support rods 8. A cylinder 10 is slidably connected to the outer walls of the support rods 8. The rotation of the connecting blocks 7 causes the support rods 8 to rotate around the connection point, and the support rods 8 slide within the cylinder 10, compressing the springs 9. Connecting blocks 3 are fixedly connected to the outer walls of the two cylinders 10 on opposite sides. 11. Connecting block 3 11 is rotatably connected to connecting block 4 12 on its outer wall. The two connecting blocks 4 12 are fixedly connected to the front and rear sides of the inner wall of the support pad 1. Through connecting block 3 11 and connecting block 4 12, the force is transmitted to the inner wall of the support pad 1. The bottom wall of the rubber block 5 is fixedly connected to a telescopic rod 14. The telescopic rod 14 is fixedly connected to the middle of the inner bottom wall of the support pad 1. The outer wall of the telescopic rod 14 is provided with a spring 2 13. The telescopic rod 14 below the rubber block 5 compresses the spring 2 13. The support pad 1 is provided with a ventilation mechanism 2. The ventilation mechanism 2 is used to ventilate the support pad 1. The front and rear sides of the outer wall of the support pad 1 are provided with square grooves 19. The inner side of the square grooves 19 is provided with a dustproof net 20. The dustproof net 20 prevents dust from entering the interior of the support pad 1 during the ventilation process and ensures the cleanliness of the air inside the support pad 1. The front and rear sides of the outer wall of the airbag 3 are provided with fixing straps 21. The fixing straps 21 are used to fix the airbag 3.

[0033] Specifically, when local pressure from the patient's body acts on the rubber block 5, the rubber block 5 moves downward. Subsequently, the rubber block 5 drives the connecting block 6 to move, which in turn causes the connecting block 7 to rotate. The rotation of the connecting block 7 causes the support rod 8 to rotate around the connection point. The support rod 8 slides inside the cylinder 10 and compresses the spring 9. At the same time, through the connecting blocks 11 and 12, the force is transmitted to the inner wall of the support pad 1. At this time, the telescopic rod 14 below the rubber block 5 compresses the spring 13. The elasticity of the spring 9 provides a buffering effect, allowing the rubber block 5 to flexibly adjust its position according to the pressure, further assisting the airbag 3 in dispersing and regulating the pressure, thereby providing more uniform support for the patient's body. The support pad 1 is equipped with a ventilation mechanism 2, which is used to ventilate the support pad 1. The dustproof net 20 prevents dust from entering the interior of the support pad 1 during the ventilation process, ensuring the cleanliness of the air inside the support pad 1. The fixing strap 21 is used to fix the airbag 3.

[0034] Reference Figure 3 and Figure 5The ventilation mechanism 2 includes an electric push rod 201, which is fixedly connected to the rear side of the inner bottom wall of the support pad 1. A fixing block 202 is fixedly connected to the output end of the electric push rod 201. The output end of the electric push rod 201 pushes the fixing block 202 on the right side to move. A rotating shaft 203 is rotatably connected to the inner bottom wall of the support pad 1. A gear 204 is fixedly connected to the top of the rotating shaft 203. Racks 205 are meshed on the front and rear sides of the outer wall of the gear 204. The racks 205 cause the gear 204 to rotate on the rotating shaft 203. Slider blocks 206 are fixedly connected to the top walls of the two racks 205 on opposite sides. The fixing block 202 is fixedly connected to the bottom wall of the rear slider 206. Guide rails 207 are fixedly connected to the front and rear sides of the inner bottom wall of the support pad 1. The slider 206 slides with the guide rails 207. Next, the slider 206 moves on the guide rail 207. An air circulation fan 208 is provided on the top of the slider 206. The air circulation fan 208 runs continuously during the movement, which accelerates the air flow speed inside the support pad 1 and causes the air to be discharged from the vent 4. There are mounting holes 15 at the four corners of the top wall of the air circulation fan 208. The mounting holes 15 are used to fix the air circulation fan 208 in a specific position. A bracket 17 is fixedly connected to the top wall of the slider 206. The bracket 17 plays the role of supporting and positioning the air circulation fan 208. A gasket 18 is installed on the top wall of the bracket 17. The gasket 18 is used to increase the friction between the air circulation fan 208 and the bracket 17, so that the air circulation fan 208 is installed more stably and prevents it from shifting due to vibration during operation.

[0035] Specifically, after the electric actuator 201 is activated, its output end pushes the right-side fixed block 202, which in turn drives the slider 206 to move inward along the guide rail 207. The rack 205 at the bottom of the slider 206 causes the gear 204 to rotate on the rotating shaft 203. Due to the rotation of the gear 204, the front rack 205 slides in the opposite direction, causing the air circulation fan 208 on the slider 206 to move in different directions. The air circulation fan 208 continues to operate during the movement, accelerating the airflow speed inside the support pad 1, thereby... The ventilation holes 4 facilitate the exhaust of air, thus providing ventilation for the support pad 1. This process effectively removes heat and moisture emitted by the patient's body, keeping the mattress surface dry and comfortable, which helps prevent pressure sores. The mounting holes 15 are used to fix the air circulator 208 in a specific position. The bracket 17 supports and positions the air circulator 208. The pads 18 increase the friction between the air circulator 208 and the bracket 17, making the air circulator 208 more securely installed and preventing it from shifting due to vibration during operation.

[0036] Reference Figure 1 , Figure 5The inner wall of the mounting hole 15 is threaded with a bolt 16. The air circulation fan 208 is fixedly connected to the bracket 17 by the bolt 16. The bolt 16 is used to firmly fix the air circulation fan 208 to the bracket 17. A headrest 22 is installed on the left side of the outer wall of the support pad 1. The headrest 22 is used to provide comfortable head support for bedridden patients.

[0037] Specifically, bolt 16 is used to securely fix the air circulator fan 208 to the bracket 17, and headrest 22 is used to provide comfortable head support for bedridden patients.

[0038] Working principle: When local pressure from the patient's body is applied to the rubber block 5, the rubber block 5 moves downward, which in turn causes the connecting block 6 to move, thereby causing the connecting block 7 to rotate. The connecting block 7 causes the support rod 8 to rotate around the connection point. The support rod 8 slides inside the cylinder 10 and compresses the spring 9. At the same time, the force is transmitted to the inner wall of the support pad 1 through the connecting block 11 and the connecting block 12. At this time, the telescopic rod 14 under the rubber block 5 compresses the spring 13. The elasticity of the spring 9 provides buffering, allowing the rubber block 5 to flexibly adjust its position according to the pressure, further assisting the airbag 3 in achieving pressure dispersion and regulation, and providing more uniform support for the patient's body.

[0039] When the electric push rod 201 is activated, its output end pushes the right-side fixed block 202. The fixed block 202 drives the slider 206, causing it to move on the guide rail 207. The rack 205 under the slider 206 drives the gear 204 to rotate on the shaft 203. As the gear 204 rotates, it causes the rack 205 on the front side to slide in opposite directions simultaneously. Therefore, the air circulation fan 208 on the slider 206 moves in different directions at the same time. The air circulation fan 208 runs continuously during the movement, accelerating the airflow speed inside the support pad 1 and causing the air to be discharged from the vent 4, thus achieving the ventilation function of the support pad 1. This effectively removes heat and moisture emitted by the patient's body, keeping the mattress surface dry and comfortable, and helping to prevent pressure sores.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A breathable mattress structure for preventing pressure sores in bedridden patients, comprising a support pad (1), characterized in that: The top wall of the support pad (1) is equidistantly equipped with multiple airbags (3), and the top wall of the support pad (1) is equidistantly provided with multiple ventilation holes (4). The inner top wall of the support pad (1) is equidistantly fixedly connected with multiple rubber blocks (5). The outer walls of the rubber blocks (5) are fixedly connected with connecting blocks one (6) on both the front and back sides. The inner side of the connecting blocks one (6) is rotatably connected with connecting blocks two (7). The outer walls of the two connecting blocks two (7) are fixedly connected with support rods (8) on opposite sides. The outer walls of the support rods (8) are provided with springs one (9). The outer walls of the support rods (8) are slidably connected with cylinders (10). Each of the outer walls of the cylinder (10) is fixedly connected to a connecting block three (11) on the side away from each other. The outer wall of the connecting block three (11) is rotatably connected to a connecting block four (12). The two connecting blocks four (12) are fixedly connected to the front and rear sides of the inner wall of the support pad (1). The bottom wall of the rubber block (5) is fixedly connected to a telescopic rod (14). The telescopic rod (14) is fixedly connected to the middle of the inner bottom wall of the support pad (1). The outer wall of the telescopic rod (14) is provided with a spring two (13). The support pad (1) is provided with a ventilation mechanism (2). The ventilation mechanism (2) is used to ventilate the support pad (1).

2. The pressure-resistant and breathable mattress structure for bedridden patients according to claim 1, characterized in that: The ventilation mechanism (2) includes an electric push rod (201), which is fixedly connected to the rear side of the inner bottom wall of the support pad (1). The output end of the electric push rod (201) is fixedly connected to a fixing block (202). The inner bottom wall of the support pad (1) is rotatably connected to a rotating shaft (203). The top end of the rotating shaft (203) is fixedly connected to a gear (204). The outer wall of the gear (204) is meshed with racks (205) on both the front and rear sides. The top walls of the two racks (205) are fixedly connected to sliders (206) on opposite sides. The fixing block (202) is fixedly connected to the bottom wall of the rear slider (206). The inner bottom wall of the support pad (1) is fixedly connected to a guide rail (207). The slider (206) is slidably connected to the guide rail (207). An air circulation fan (208) is provided on the top of the slider (206).

3. The pressure-resistant and breathable mattress structure for bedridden patients according to claim 2, characterized in that: Mounting holes (15) are provided at the four corners of the top wall of the air circulator fan (208).

4. The pressure-resistant and breathable mattress structure for bedridden patients according to claim 2, characterized in that: The top wall of the slider (206) is fixedly connected to a bracket (17), and a gasket (18) is installed on the top wall of the bracket (17).

5. The pressure-resistant and breathable mattress structure for bedridden patients according to claim 3, characterized in that: The inner wall of the mounting hole (15) is threaded with a bolt (16), and the air circulation fan (208) is fixedly connected to the bracket (17) by the bolt (16).

6. The pressure-resistant and breathable mattress structure for bedridden patients according to claim 1, characterized in that: The outer wall of the support pad (1) is provided with square grooves (19) on both the front and rear sides, and a dustproof net (20) is installed on the inner side of the square grooves (19).

7. The pressure-resistant and breathable mattress structure for bedridden patients according to claim 1, characterized in that: The airbag (3) has fixing straps (21) installed on both the front and rear sides of its outer wall.

8. The pressure-resistant and breathable mattress structure for bedridden patients according to claim 1, characterized in that: A headrest (22) is installed on the left side of the outer wall of the support pad (1).