Intelligent air cushion bed for preventing pressure sores of cardiovascular critical patients during turning

By designing an intelligent air mattress to prevent pressure sores when turning over patients with cardiovascular diseases, the shape of the air mattress can be adjusted using adjustment and auxiliary mechanisms, thus solving the problems of airway accumulation and pressure sore risk, and achieving both comfort and health support for patients.

CN224387680UActive Publication Date: 2026-06-23GENERAL HOSPITAL OF SOUTHERN THEATRE COMMAND OF PLA

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GENERAL HOSPITAL OF SOUTHERN THEATRE COMMAND OF PLA
Filing Date
2025-06-19
Publication Date
2026-06-23

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Abstract

This utility model discloses an intelligent air mattress for turning over and preventing pressure sores in critically ill cardiovascular patients, belonging to the field of medical device technology. The utility model includes a base plate with a baffle fixedly connected to the top outer wall of the base plate. By setting up a control panel and automatic telescopic rods, the extension distance of multiple automatic telescopic rods at the bottom can be changed by operating the control panel, thereby causing the automatic telescopic rods to push one side of the air mattress upwards. The other side of the air mattress is confined to the base plate, so the movement of the automatic telescopic rods causes the air mattress to bend, with the bending part precisely near the waist. This allows the patient to adjust the shape of the bed to conform to the human body curve by controlling the control panel. The height of the automatic telescopic rods can be adjusted by the control panel, causing the telescopic rods to push one side of the air mattress upwards and bend it, preventing pressure sores. For critically ill cardiovascular patients, prolonged lying flat can easily lead to the accumulation of respiratory secretions in the lungs, making it difficult to expel and causing breathing difficulties.
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Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, and in particular relates to an intelligent air mattress for turning over and preventing pressure sores in critically ill cardiovascular patients. Background Technology

[0002] Patients with severe cardiovascular diseases often have serious conditions and require prolonged bed rest, limiting their mobility. Maintaining the same lying position for extended periods puts continuous pressure on local tissues, leading to impaired blood circulation and increasing the risk of pressure sores. Pressure sores not only increase patient suffering and hinder recovery but can also cause serious complications such as infection, and even endanger life.

[0003] Existing air mattresses inflate by blowing gas into the mattress. Since the mattress is full of gas, when a patient lies on it, gravity compresses the gas inside, causing a depression. The amount of gas blown into the mattress varies, thus changing the support the mattress provides to the patient.

[0004] After the above equipment is completed, because cardiovascular critically ill patients are prone to respiratory secretions accumulating in their lungs due to prolonged lying down, which is difficult to expel and can easily lead to breathing difficulties, we propose a smart air mattress for turning over and preventing pressure sores in cardiovascular critically ill patients. Utility Model Content

[0005] The purpose of this invention is to provide an intelligent air mattress for turning over and preventing pressure sores in critically ill cardiovascular patients. Through adjustment and auxiliary mechanisms, it solves the problem that prolonged lying down can easily cause respiratory secretions to accumulate in the lungs and become difficult to expel, leading to breathing difficulties.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model is an intelligent air mattress for turning over and preventing pressure sores in critically ill cardiovascular patients, including a base plate, a baffle fixedly connected to the top outer wall of the base plate, and a small blower fixedly connected to the inner wall of the baffle.

[0008] An adjustment mechanism is provided on the outer wall of the base plate. The adjustment mechanism includes an automatic telescopic rod. A control plate is fixedly connected to the top outer wall of the automatic telescopic rod. A positioning block is fixedly connected to the top outer wall of the base plate. A connecting rod is rotatably connected to the outer wall of the positioning block. A push rod is rotatably connected to the inner wall of the end of the connecting rod away from the positioning block. A push plate is rotatably connected to the top outer wall of the push rod. A second positioning block is rotatably connected to the outer wall of the end of the push rod away from the push plate. A limit block is slidably connected to the outer wall of the second positioning block. The outer wall of the limit block is fixedly connected to the outer wall of the base plate. A second push rod is rotatably connected to the outer wall of the push rod near the push plate. A second push plate is rotatably connected to the outer wall of the other end of the second push rod. A support plate is fixedly connected to the top outer wall of both the second push plate and the push plate.

[0009] Furthermore, a damper is fixedly connected to the outer wall of the connecting rod, a spring is fixedly connected to the outer wall of the damper, and an auxiliary mechanism is provided on the outer wall of the small blower.

[0010] Furthermore, the auxiliary mechanism includes an air cushion, the outer wall of which is fixedly connected to the outer wall of a small blower, a plurality of telescopic rods are fixedly connected to the bottom of the inner wall of the air cushion, a plurality of support blocks are rotatably connected to the top outer wall of the telescopic rods, and a fixed block is rotatably connected to the outer wall of the support block away from the telescopic rod.

[0011] Furthermore, a support rod is rotatably connected to the bottom outer wall of the fixing block, and a connecting block is rotatably connected to the outer wall of the end of the support rod away from the fixing block.

[0012] Furthermore, a telescopic rod two is rotatably connected to the outer wall of the other side of the connecting block, and a fixed seat is rotatably connected to the outer wall of the end of the telescopic rod two away from the connecting block.

[0013] Furthermore, the outer wall of the fixed base is fixedly connected to the inner wall of the base plate, and a plurality of limiting blocks 2 are fixedly connected to the bottom of the inner wall of the base plate, and the inner walls of the plurality of limiting blocks 2 are slidably connected to the fixing blocks 2.

[0014] Furthermore, a support rod 2 is rotatably connected to the outer wall of the fixed block 2, and a support plate 2 is rotatably connected to the outer wall of the support rod 2 away from the fixed block 2. A limit groove is formed on the inner wall of the fixed block 2.

[0015] Furthermore, the inner wall of the limiting groove is slidably connected to the outer wall of the connecting block, and a resistance spring is fixedly connected to the bottom outer wall of the connecting block. The outer wall of the resistance spring is fixedly connected to the inner wall of the second support rod.

[0016] This utility model has the following beneficial effects:

[0017] 1. This utility model incorporates a control panel and automatic telescopic rods. By operating the control panel, the extension distance of multiple automatic telescopic rods at the bottom is changed, causing the automatic telescopic rods to push one side of the air cushion upwards. The other side of the air cushion is confined to the base plate, so the movement of the automatic telescopic rods causes the air cushion to bend. The bent part is precisely near the waist, allowing the patient to adjust the shape of the bed to conform to the human body curve by controlling the control panel. This achieves the goal of adjusting the height of the automatic telescopic rods through the control panel, thereby causing the telescopic rods to push one side of the air cushion upwards and bend it. This prevents respiratory secretions from accumulating in the lungs and causing breathing difficulties, which is common in patients with severe cardiovascular diseases who lie flat for extended periods.

[0018] 2. This utility model incorporates a fixed block and a telescopic rod. The patient's weight presses down on the bottom air cushion, and the air cushion's elasticity allows it to sink downwards according to the patient's position. During this sinking process, the fixed block is pushed downwards, causing the support block to rotate around the telescopic rod. The downward movement of the fixed block and the patient's weight automatically compress the length of the telescopic rod. Simultaneously, the patient's body curves push the fixed block to rotate around the support block, thus supporting and conforming to the patient's body. This achieves the goal of supporting the patient's body with the fixed block and adjusting the support force by pushing the fixed block downwards with the patient's movement and automatically compressing the telescopic rod. This prevents situations where heavier or weaker patients require sufficient support to maintain their normal physiological curves, avoiding spinal deformities caused by insufficient mattress support.

[0019] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a cross-sectional view of the adjustment structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the auxiliary structure of this utility model;

[0024] Figure 4This is a cross-sectional view of the auxiliary structure of this utility model;

[0025] Figure 5 This utility model Figure 4 Enlarged view of point A in the middle.

[0026] The attached diagram lists the components represented by each number as follows:

[0027] 1. Base plate; 101. Baffle; 102. Small blower; 2. Adjustment mechanism; 201. Automatic telescopic rod; 202. Control panel; 203. Positioning block; 204. Connecting rod; 205. Push rod; 206. Push plate; 207. Push rod II; 208. Push plate II; 209. Positioning block II; 210. Limiting block; 211. Spring; 212. Damper; 213. Support plate; 3. Auxiliary mechanism; 301. Air cushion; 302. Telescopic rod; 303. Support block; 304. Fixing block; 305. Support rod; 306. Telescopic rod II; 307. Fixing seat; 308. Connecting block; 309. Support rod II; 310. Fixing block II; 311. Support plate II; 312. Limiting groove; 313. Resistance spring; 314. Limiting block II. Detailed Implementation

[0028] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figure 1-5 As shown, this utility model is an intelligent air mattress for turning over and preventing pressure sores in critically ill cardiovascular patients. It includes a base plate 1, a baffle 101 fixedly connected to the top outer wall of the base plate 1, and a small blower 102 fixedly connected to the inner wall of the baffle 101. The small blower 102 is started to inflate the air mattress 301.

[0030] An adjustment mechanism 2 is provided on the outer wall of the base plate 1. The adjustment mechanism 2 includes an automatic telescopic rod 201. A control plate 202 is fixedly connected to the top outer wall of the automatic telescopic rod 201. The control plate 202 controls the rising height of the automatic telescopic rod 201. A positioning block 203 is fixedly connected to the top outer wall of the base plate 1. A connecting rod 204 is rotatably connected to the outer wall of the positioning block 203. A push rod 205 is rotatably connected to the inner wall of the end of the connecting rod 204 away from the positioning block 203. A push plate is rotatably connected to the top outer wall of the push rod 205. 206. The movement of the automatic telescopic rod 201 pushes the air cushion 301 to move, and the air cushion 301 drives the push plate 206 to move while pulling the push rod 205 to rotate around the connecting rod 204. Thus, the connecting rod 204 supports the push rod 205. The outer wall of the end of the push rod 205 away from the push plate 206 is rotatably connected to the positioning block 209. The outer wall of the positioning block 209 is slidably connected to the limit block 210. The outer wall of the limit block 210 is fixedly connected to the outer wall of the base plate 1. The positioning block 209 limits the movement of the push rod 205. The sliding within block 210 pushes push rod 205, causing it to move horizontally via the rotation of air cushion 301. Push rod 205 is rotatably connected to push rod 207 on the outer wall near push plate 206, and push plate 208 is rotatably connected to the outer wall of the other end of push rod 207. Push rod 207 supports push plate 208, which in turn supports support plate 213. Simultaneously, because push rod 207 is connected to push rod 205, push rod 205 shares some of the pressure from push rod 207. A support plate 213 is fixedly connected to the top outer wall of the push plate 206. A damper 212 is fixedly connected to the outer wall of the connecting rod 204. A spring 211 is fixedly connected to the outer wall of the damper 212. Because the spring 211 is connected between the connecting rod 204 and the push rod 205, the spring 211 at the bottom will be squeezed when the push rod 205 is under pressure. The damper 212 in the middle of the spring 211 prevents the spring 211 from bending unexpectedly. An auxiliary mechanism 3 is provided on the outer wall of the small blower 102.

[0031] Auxiliary mechanism 3 includes an air cushion 301. The outer wall of the air cushion 301 is fixedly connected to the outer wall of the small blower 102. Several telescopic rods 302 are fixedly connected to the bottom of the inner wall of the air cushion 301. Several support blocks 303 are rotatably connected to the top outer wall of the telescopic rods 302. A fixed block 304 is rotatably connected to the outer wall of the end of the support block 303 away from the telescopic rod 302. The telescopic rods 302 are supported by the upper and lower layers of the air cushion 301, and the fixed block 304 is connected to the support block 303, thereby increasing the air pressure of the telescopic rods 302. The support area of ​​the pad 301 is such that a support rod 305 is rotatably connected to the bottom outer wall of the fixing block 304. A connecting block 308 is rotatably connected to the outer wall of the support rod 305 away from the fixing block 304. A telescopic rod 306 is rotatably connected to the outer wall of the other side of the connecting block 308. A fixing seat 307 is rotatably connected to the outer wall of the telescopic rod 306 away from the connecting block 308. The support rod 305 and the telescopic rod 306 are connected by the connecting block 308, and the telescopic rod 306 is fixed inside the air pad 301 by the fixing seat 307.

[0032] The outer wall of the fixed base 307 is fixedly connected to the inner wall of the base plate 1. Several limiting blocks 314 are fixedly connected to the bottom of the inner wall of the base plate 1. Fixed blocks 310 are slidably connected to the inner walls of the limiting blocks 314. A support rod 309 is rotatably connected to the outer wall of the fixed blocks 310. A support plate 311 is rotatably connected to the outer wall of the end of the support rod 309 away from the fixed blocks 310. The limiting blocks 314 restrict the position of the fixed blocks 310, and the support rod 309, through the pressure of the support plate 311, pushes the fixed blocks 310 to slide along the limiting blocks 314. The inner wall of the fixed blocks 310 opens... A limiting groove 312 is provided, and the inner wall of the limiting groove 312 is slidably connected to the outer wall of the connecting block 308. A resistance spring 313 is fixedly connected to the bottom outer wall of the connecting block 308. The outer wall of the resistance spring 313 is fixedly connected to the inner wall of the second support rod 309. When the air cushion 301 pushes the fixing block 304 and the second support plate 311 downward, the fixing block 304 will push the support rod 305 and drive the connecting block 308 to move, and make the connecting block 308 squeeze the resistance spring 313 at the bottom. The elasticity of the resistance spring 313 increases the resistance encountered by the connecting block 308 when it moves, so that the fixing block 304 can better support the air cushion 301.

[0033] One specific application of this embodiment is:

[0034] When staff need to use the device, they start the small blower 102 to blow outside air into the air cushion 301 until it is full. Then, they turn off the small blower 102 to prevent air from escaping from the air cushion 301. The patient then lies on the surface of the air cushion 301, and their own weight presses down on the bottom of the air cushion 301. Due to the elasticity of the air cushion 301, it indents downwards according to the patient's position. During this indentation, the bottom fixing block 304 is pushed downwards, and the movement of the fixing block 304 causes the support block 303 to rotate around the telescopic rod 302. The downward movement of the fixing block 304 and the patient's own weight cause the telescopic rod 302 to rotate. 2. The length of the automatic compression telescopic rod 302 is increased. Simultaneously, due to the patient's body curve, the fixed block 304 rotates around the support block 303, allowing the fixed block 304 to support the patient and conform to their body. During the movement of the fixed block 304, the support rod 305 moves, causing the connecting block 308 at the other end to slide along the limiting groove 312. Simultaneously, the connecting block 308 compresses the resistance spring 313 inside the limiting groove 312, using the elasticity of the resistance spring 313 to increase the resistance encountered by the connecting block 308 during its movement. During the movement of the connecting block 308, the connecting block 308 causes the telescopic rod 306 to rotate around the fixed base 307, thus allowing the pressure on the support rod 305 to be released. The pressure is transmitted through the connecting block 308 to the telescopic rod 306, allowing the telescopic rod 306 to share the pressure of the support rod 305. Multiple support plates 311 are located on both sides of the air cushion 301. Due to the patient's weight, the area where the air cushion 301 is depressed covers the top of the air cushion 301. Therefore, the outermost support plates 311 are also affected, causing them to rotate around the support rod 309. This allows the support plates 311 to wrap around the depressed sides of the patient's body. When the patient needs to turn over, their center of gravity shifts to one side, pushing the support plates 311 downwards and simultaneously pushing the support rod 309. The range of motion of the support rod 309 is limited by the connecting block 308. The second support rod 309 can only rotate around the connecting block 308 while pushing the second fixed block 310 to slide along the inside of the second limiting block 314. This allows the second support plate 311 to automatically change its support angle according to the patient's body posture, ensuring that the patient's body always receives sufficient support. By operating the control panel 202 to change the extension distance of the multiple automatic telescopic rods 201 at the bottom, the automatic telescopic rods 201 push one side of the air cushion 301 upwards. The other side of the air cushion 301 is restricted to the base plate 1. Therefore, the movement of the automatic telescopic rods 201 causes the air cushion 301 to bend, and the bent part is exactly near the waist. This allows the patient to adjust the shape of the bed to conform to the human body curve by controlling the control panel 202.During the extension of the automatic telescopic rod 201, it drives the multiple support plates 213 to move, which in turn drives the push plate 206 to move. The push plate 206 then pushes the push rod 205 to move. Since the push rod 205 is restricted by the connecting rod 204, it rotates around the connecting rod 204, thereby pushing the positioning block 209 to slide along the inside of the limiting block 210. During the movement of the push rod 205, it drives the connecting rod 204 to rotate around the positioning block 203, increasing the distance between the connecting rod 204 and the push rod 205. This causes the push rod 205 to pull the spring 211. The elasticity of the spring 211 allows it to release its elasticity when subjected to external pressure, increasing the support force of the push plate 206 on the support plate 213. Simultaneously, a damper 212 is installed in the middle of the spring 211 to prevent accidental bending of the spring 211 during extension, which could prevent the spring 211 from releasing its elasticity properly.

[0035] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0036] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A smart air mattress for preventing pressure sores in critically ill cardiovascular patients during turning over, comprising a base plate (1), characterized in that: A baffle (101) is fixedly connected to the top outer wall of the base plate (1), and a small blower (102) is fixedly connected to the inner wall of the baffle (101). An adjustment mechanism (2) is provided on the outer wall of the base plate (1). The adjustment mechanism (2) includes an automatic telescopic rod (201). A control plate (202) is fixedly connected to the top outer wall of the automatic telescopic rod (201). A positioning block (203) is fixedly connected to the top outer wall of the base plate (1). A connecting rod (204) is rotatably connected to the outer wall of the positioning block (203). A push rod (205) is rotatably connected to the inner wall of the end of the connecting rod (204) away from the positioning block (203). A push plate (206) is rotatably connected to the top outer wall of the push rod (205). (205) A positioning block two (209) is rotatably connected to the outer wall of the end away from the push plate (206). A limit block (210) is slidably connected to the outer wall of the positioning block two (209). The outer wall of the limit block (210) is fixedly connected to the outer wall of the base plate (1). A push rod two (207) is rotatably connected to the outer wall of the push rod (205) near the push plate (206). A push plate two (208) is rotatably connected to the outer wall of the other end of the push rod two (207). A support plate (213) is fixedly connected to the top outer wall of both the push plate two (208) and the push plate (206).

2. The intelligent air mattress for preventing pressure sores in critically ill cardiovascular patients as described in claim 1, characterized in that, A damper (212) is fixedly connected to the outer wall of the connecting rod (204), and a spring (211) is fixedly connected to the outer wall of the damper (212). An auxiliary mechanism (3) is provided on the outer wall of the small blower (102).

3. The intelligent air mattress for preventing pressure sores in critically ill cardiovascular patients as described in claim 2, characterized in that, The auxiliary mechanism (3) includes an air cushion (301), the outer wall of which is fixedly connected to the outer wall of a small blower (102), and a number of telescopic rods (302) are fixedly connected to the bottom of the inner wall of the air cushion (301). A number of support blocks (303) are rotatably connected to the top outer wall of the telescopic rods (302), and a fixing block (304) is rotatably connected to the outer wall of the support block (303) away from the telescopic rods (302).

4. The intelligent air mattress for preventing pressure sores in critically ill cardiovascular patients as described in claim 3, characterized in that, A support rod (305) is rotatably connected to the bottom outer wall of the fixed block (304), and a connecting block (308) is rotatably connected to the outer wall of the end of the support rod (305) away from the fixed block (304).

5. The intelligent air mattress for preventing pressure sores during turning over in critically ill cardiovascular patients according to claim 4, characterized in that, The other side of the connecting block (308) is rotatably connected to a telescopic rod two (306), and a fixed seat (307) is rotatably connected to the outer wall of the telescopic rod two (306) away from the connecting block (308).

6. The intelligent air mattress for preventing pressure sores in critically ill cardiovascular patients as described in claim 5, characterized in that, The outer wall of the fixed seat (307) is fixedly connected to the inner wall of the base plate (1). A plurality of limiting blocks (314) are fixedly connected to the bottom of the inner wall of the base plate (1), and a fixed block (310) is slidably connected to the inner wall of the plurality of limiting blocks (314).

7. The intelligent air mattress for preventing pressure sores in critically ill cardiovascular patients as described in claim 6, characterized in that, The outer wall of the fixed block 2 (310) is rotatably connected to the support rod 2 (309), and the outer wall of the support rod 2 (309) away from the fixed block 2 (310) is rotatably connected to the support plate 2 (311). The inner wall of the fixed block 2 (310) is provided with a limit groove (312).

8. The intelligent air mattress for preventing pressure sores during turning over in critically ill cardiovascular patients according to claim 7, characterized in that, The inner wall of the limiting groove (312) is slidably connected to the outer wall of the connecting block (308), and a resistance spring (313) is fixedly connected to the bottom outer wall of the connecting block (308). The outer wall of the resistance spring (313) is fixedly connected to the inner wall of the second support rod (309).