Pressure sore prevention nursing pad

By designing a monitoring, support, and connection mechanism, the pressure ulcer prevention pad solves the problem that existing pads cannot relieve skin pressure and temperature, enabling real-time monitoring and support of the patient's skin condition and preventing pressure ulcers.

CN120938751APending Publication Date: 2025-11-14THE FIRST AFFILIATED HOSPITAL OF WENZHOU MEDICAL UNIV
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Patent Information

Application Number
CN202511239110.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-09-01
Publication Date
2025-11-14

AI Technical Summary

Technical Problem

Existing nursing pads cannot effectively relieve pressure and temperature on patients' skin when used for extended periods, leading to pressure sores. They also lack testing equipment and versatility.

Method used

A pressure ulcer prevention nursing pad has been designed, comprising a monitoring mechanism, a support mechanism, and a connecting mechanism. By monitoring the patient's skin pressure and temperature, it can promptly issue an alarm and push the patient to lie on their side, using an inflatable air bladder and a gel pad layer to relieve pressure.

Benefits of technology

It enables real-time monitoring of patient skin pressure and temperature, timely alerts and support mechanisms, effectively preventing pressure ulcers and reducing the risk of cross-infection.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention provides a pressure sore prevention nursing pad, and belongs to the technical field of medical instruments. The pressure sore prevention nursing pad comprises a first pad body and a second pad body, the top of the first pad body, the top of the second pad body and the top of a connecting pad are covered with gel pad layers, the top of the first pad body and the top of the second pad body are each provided with a plurality of independently-controlled expansion air bags, and bottom plates are installed at the bottoms of the first pad body and the bottom of the second pad body; the top of the first pad body and the top of the second pad body are each provided with a supporting mechanism, the inner side of the first pad body and the inner side of the second pad body are each provided with a connecting mechanism, and the bottom of the first pad body and the bottom of the second pad body are each provided with a monitoring mechanism. When it is detected that the patient needs to turn over or move after lying on the back for a long time, a signal is transmitted to a nurse station for alarm reminding, the gel cushion layer and the expansion air bag can relieve the skin pressure of the patient, and then pressure sores of the patient are prevented.
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Description

Technical Field

[0001] This invention relates to the field of medical device technology, and more specifically, to an anti-pressure ulcer care pad. Background Technology

[0002] Pressure ulcers, also known as bedsores or pressure sores, are skin and tissue injuries localized to the body's position. They occur when tissues are subjected to prolonged pressure, leading to insufficient blood supply, resulting in skin damage, ulceration, and even necrosis. They typically occur in people who are bedridden or sitting for extended periods, especially those with limited mobility and restricted local nerve and blood supply. The occurrence of pressure ulcers causes significant trauma and suffering to patients' physical and mental health. Therefore, preventing pressure ulcers is of paramount importance. To prevent pressure ulcers from developing in patients who are bedridden for extended periods, nursing pads are placed under their bodies.

[0003] However, nursing pads can only temporarily relieve skin pressure when used, and their function is relatively limited and singular. The lack of testing equipment means that when patients are not turned over or moved by medical staff for a long time, the patients press on the nursing pad for a long time, which increases the temperature and pressure on the patient's skin at the contact point with the nursing pad, leading to pressure sores on the patient's buttocks and bony prominences. Summary of the Invention

[0004] To overcome the above deficiencies, the present invention provides an anti-pressure ulcer care pad that overcomes or at least partially solves the above technical problems.

[0005] This invention is implemented as follows: This invention provides an anti-pressure ulcer care pad, comprising a first pad and a second pad, with a connecting pad disposed on the inner side of the first pad and the second pad, and a gel pad layer covering the top of the first pad, the second pad and the connecting pad, with multiple independently controlled inflatable airbags disposed on the top of the first pad and the second pad, a base plate installed at the bottom of the first pad and the second pad, a support mechanism disposed on the top of the first pad and the second pad, a connecting mechanism disposed on the inner side of the first pad and the second pad, and a monitoring mechanism disposed at the bottom of the first pad and the second pad. The monitoring agencies include: The first mounting slot is distributed at the four corners of the bottom of the first pad and the second pad; The first mounting plate is inserted into the first mounting slot and fixed to the top of the base plate. A pressure sensor is mounted on top of a first mounting plate, and a temperature sensor is mounted on top of a first mounting plate.

[0006] In a preferred embodiment, the connecting mechanism includes a first connecting plate disposed on the front and rear sides of the bottom of the first pad, a connecting strip installed on the left side of the first connecting plate, a second connecting plate installed on the left side of the connecting strip, and plug-in plates installed on the top of both the first and second connecting plates, the plug-in plates being plugged into the bottom plate.

[0007] In a preferred embodiment, a sleeve is fitted over the surface of the first pad, and both the connecting pad and the second pad are fitted inside the sleeve, with a zipper installed on the front of the sleeve.

[0008] In a preferred embodiment, both the first pad and the second pad have a second mounting groove on their tops, a support plate is provided in the inner cavity of the second mounting groove, and a pad is installed on the top of the support plate.

[0009] In a preferred embodiment, the support mechanism includes a support frame mounted on top of a base plate and located at the bottom of a support plate. A support seat is mounted on top of the support frame, and a rotating plate is rotatably mounted on the inner side of the support seat.

[0010] In a preferred embodiment, a drive motor is mounted on the top of the base plate, a first lead screw is mounted on the output end of the drive motor, a first threaded sleeve is mounted on the surface of the first lead screw, a first movable frame is mounted on the top of the surface of the first threaded sleeve, a connecting frame is mounted on the outside of the first movable frame, a pulling frame is mounted on the top of the connecting frame, and the top of the pulling frame is movably connected to the rotating plate.

[0011] In a preferred embodiment, a first fixing plate located at the bottom of the first lead screw is installed on the top of the base plate, a first limiting rod is installed on the surface of the first fixing plate, a first limiting plate is installed at the bottom of the first screw sleeve, and the outer side of the first limiting rod extends through to the outer side of the first limiting plate.

[0012] In a preferred embodiment, the support mechanism includes a mounting frame, which is respectively mounted on the surfaces of a first pad and a second pad. A support plate is rotatably mounted in the inner cavity of the mounting frame, and a first pressing block is mounted on the bottom of the support plate. The bottom of the first pressing block is inclined.

[0013] In a preferred embodiment, a rotating rod is mounted on the outer side of the mounting frame, the rotating rod extends into the inner cavity of the mounting frame, a second lead screw is mounted at the end of the rotating rod, a second threaded sleeve is mounted on the surface of the second lead screw, a second movable frame is mounted on the surface of the second threaded sleeve, and a pushing block is mounted on the back of the second movable frame, with the surface of the pushing block being inclined.

[0014] In a preferred embodiment, a second limiting plate is installed at the bottom of the second threaded sleeve, a second fixing plate is installed on the rear side of the inner wall of the mounting frame, a second limiting rod is installed on the front of the second fixing plate, and the second limiting rod extends through to the outer side of the second limiting plate.

[0015] The present invention provides an anti-pressure ulcer care pad, the beneficial effects of which include: 1. By setting up a monitoring device, the device can detect the temperature and pressure of the patient's buttocks and bony prominences. When it detects that the patient has been lying supine for a long time and needs to be turned over or moved, it can transmit a signal to the nurse station to remind the patient. The gel pad and inflatable air bladder can relieve the pressure on the patient's skin, thereby preventing pressure sores.

[0016] 2. By setting up a support mechanism and a connecting mechanism, the support mechanism can be used to push the patient to turn to the side, thereby relieving pressure on the patient's buttocks and bony prominences, thus preventing pressure sores caused by prolonged supine lying. The connecting mechanism can connect the first pad and the second pad, so that the first pad and the second pad can be placed under the patient's body to prevent the first pad and the second pad from separating. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort. Figure 1 This is a perspective view provided by an embodiment of the present invention; Figure 2 A schematic diagram of the three-dimensional structure of the gasket provided for an embodiment of the present invention; Figure 3 A schematic diagram of a partial three-dimensional cross-sectional structure of the first pad provided for an embodiment of the present invention; Figure 4 A schematic diagram of the support frame structure in Embodiment 1 provided by the present invention; Figure 5 A schematic diagram of the connecting frame structure in Embodiment 1 provided for the implementation of the present invention; Figure 6 A schematic diagram of the rotating plate structure in Embodiment 1 provided by the present invention; Figure 7 A three-dimensional structural schematic diagram of Embodiment 2 provided for the implementation of the present invention; Figure 8 A schematic diagram of the three-dimensional cross-sectional structure of the mounting frame in Embodiment 2 provided for the implementation of the present invention; In the diagram: 1. First pad; 2. Second pad; 3. Connecting pad; 4. Gel pad layer; 5. Inflatable airbag; 6. First mounting groove; 7. First mounting plate; 8. Base plate; 9. Pressure sensor; 10. Temperature sensor; 11. First connecting plate; 12. Connecting strip; 13. Second connecting plate; 14. Insert plate; 15. Pad sleeve; 16. Zipper; 17. Second mounting groove; 18. Support plate; 19. Pad plate; 20. Support frame; 21. Support base; 22. Rotary... 23. Moving plate; 24. Drive motor; 25. First lead screw; 26. First threaded sleeve; 27. First moving frame; 28. Connecting frame; 29. ​​Pulling frame; 30. First fixing plate; 31. First limiting rod; 32. Mounting frame; 33. First pressing block; 34. Rotating rod; 35. Second lead screw; 36. Second threaded sleeve; 37. Second moving frame; 38. Pushing block; 39. Second limiting plate; 40. Second fixing plate; 41. Second limiting rod. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Reference Figures 1-8 This invention provides a technical solution: an anti-pressure ulcer care pad, comprising a first pad body 1 and a second pad body 2, with a connecting pad 3 disposed on the inner side of the first pad body 1 and the second pad body 2, and a gel pad layer 4 covering the top of the first pad body 1, the second pad body 2 and the connecting pad 3, with multiple independently controlled inflatable airbags 5 on the top of both the first pad body 1 and the second pad body 2, and a base plate 8 installed at the bottom of the first pad body 1 and the second pad body 2, with a support mechanism on the top of both the first pad body 1 and the second pad body 2, and a connecting mechanism disposed on the inner side of the first pad body 1 and the second pad body 2. The bottom of each pad 2 is equipped with a monitoring mechanism, which can monitor the pressure and temperature of the patient's skin in real time and send a signal to the nurse station for alarm in a timely manner. The support mechanism can push the patient's body to turn the supine patient to the side. The gel pad layer 4 and the inflated air bladder 5 can relieve the pressure and temperature of the patient's skin, thereby preventing pressure sores caused by prolonged bed rest. It is worth noting that the external pipeline of the air bladder 5 is equipped with a solenoid valve, which facilitates the injection of air into the individual air bladder 5, which can help the patient to turn to the side.

[0020] Reference Figures 1-3In a preferred embodiment, a monitoring mechanism is provided, comprising a first mounting groove 6, a first mounting plate 7, a pressure sensor 9, and a temperature sensor 10. The first mounting groove 6 is distributed at the four corners of the bottom of the first pad 1 and the second pad 2. The first mounting plate 7 is inserted into the first mounting groove 6 and fixed to the top of the base plate 8. The pressure sensor 9 is mounted on the top of the first mounting plate 7, and the temperature sensor 10 is mounted on the top of the first mounting plate 7. The pressure sensor 9 and the temperature sensor 10 can be installed on the first pad 19, thereby using the pressure sensor 9 and the temperature sensor 10 to monitor the pressure and temperature of the patient's skin. When abnormal pressure and temperature of the patient's skin are detected, the patient's posture can be adjusted in a timely manner to avoid pressure sores on the patient's buttocks and bony prominences.

[0021] Reference Figures 1-4 In a preferred embodiment, the connecting mechanism includes a first connecting plate 11, which is disposed on the front and rear sides of the bottom of the first pad 1. A connecting strap 12 is installed on the left side of the first connecting plate 11, and a second connecting plate 13 is installed on the left side of the connecting strap 12. A plug-in plate 14 is installed on the top of both the first connecting plate 11 and the second connecting plate 13. The plug-in plate 14 is plugged into the bottom plate 8, thereby connecting the first pad 1 and the second pad 2 to facilitate support for the patient's body. A pad cover 15 is fitted on the surface of the first pad 1. The connecting pad 3 and the second pad 2 are both fitted inside the pad cover 15. A zipper 16 is installed on the front of the pad cover 15, allowing the pad cover 15 to be fitted onto the surfaces of the first pad 1 and the second pad 2. This protects the first pad 1 and the second pad 2, facilitates machine washing and disinfection, and reduces the risk of cross-infection.

[0022] Reference Figures 1-4 In a preferred embodiment, the top of both the first pad 1 and the second pad 2 are provided with a second mounting groove 17. The inner cavity of the second mounting groove 17 is provided with a support plate 18, and a pad 19 is installed on the top of the support plate 18. The second mounting groove 17 can be used to install the support plate 18 and the pad 19. After the support mechanism squeezes the support plate 18, the support plate 18 tilts and pushes the patient's body, allowing the patient to lie on their side and preventing pressure sores from forming.

[0023] Example 1 Reference Figures 4-6In a preferred embodiment, the support mechanism includes a support frame 20, which is mounted on the top of the base plate 8 and located at the bottom of the support plate 18. A support base 21 is mounted on the top of the support frame 20, and a rotating plate 22 is rotatably mounted on the inner side of the support base 21. A drive motor 23 is mounted on the top of the base plate 8, and a first lead screw 24 is mounted on the output end of the drive motor 23. A first threaded sleeve 25 is mounted on the surface of the first lead screw 24, and a first movable frame 26 is mounted on the top of the surface of the first threaded sleeve 25. A connecting frame 27 is mounted on the outer side of the first movable frame 26, and a pulling frame 28 is mounted on the top of the connecting frame 27. The top of the pulling frame 28 is connected to... The rotating plate 22 is movably connected. When the data detected by the pressure sensor 9 and temperature sensor 10 is abnormal, the drive motor 23 can be remotely started. After the drive motor 23 starts, it drives the first lead screw 24 to rotate, which in turn drives the first threaded sleeve 25 to move. The first threaded sleeve 25 can pull the rotating plate 22 through the first moving frame 26 and the connecting frame 27, so that the rotating plate 22 can be rotated from an inclined state to a vertical state. This makes it easier to support the patient by tilting the support plate 18, which can push the patient from a supine position to a side position, thereby relieving the pressure on the patient's buttocks and bony prominences and preventing the formation of pressure sores.

[0024] Reference Figures 4-5 In a preferred embodiment, a first fixing plate 29 located at the bottom of the first lead screw 24 is installed on the top of the base plate 8. A first limiting rod 30 is installed on the surface of the first fixing plate 29. A first limiting plate 31 is installed at the bottom of the first threaded sleeve 25. The outer side of the first limiting rod 30 extends through the outer side of the first limiting plate 31, allowing the first limiting rod 30 to pass through the first limiting plate 31, thereby limiting the first threaded sleeve 25 and facilitating stable movement of the first threaded sleeve 25. This allows the first moving frame 26, the connecting frame 27, and the pulling frame 28 to be moved, and the rotating plate 22 can be pulled to a vertical position.

[0025] Example 2 Reference Figures 7-8In a preferred embodiment, the support mechanism includes a mounting frame 32, which is respectively mounted on the surfaces of the first pad 1 and the second pad 2. A support plate 18 is rotatably mounted in the inner cavity of the mounting frame 32. A first pressing block 33 is mounted on the bottom of the support plate 18, and the bottom of the first pressing block 33 is inclined. A rotating rod 34 is mounted on the outer side of the mounting frame 32, and the rotating rod 34 extends into the inner cavity of the mounting frame 32. A second lead screw 35 is mounted at the end of the rotating rod 34. A second threaded sleeve 36 is mounted on the surface of the second lead screw 35, and a second movable frame 37 is mounted on the surface of the second threaded sleeve 36. A push block 38 is installed on the back of the second movable frame 37, and the surface of the push block 38 is inclined. The rotating rod 34 can be rotated manually, which drives the second lead screw 35 to rotate. When the second lead screw 35 drives the second screw sleeve 36 to move, it drives the second movable frame 37 to move. The second movable frame 37 can drive the push block 38 to move, so that the push block 38 can squeeze the first compression block 33, which facilitates the rotation of the support plate 18. When the support plate 18 is tilted, the patient can be turned to the side, which can prevent pressure sores caused by the patient lying supine for a long time.

[0026] Reference Figures 7-8 In a preferred embodiment, a second limiting plate 39 is installed at the bottom of the second threaded sleeve 36, a second fixing plate 40 is installed on the rear side of the inner wall of the mounting frame 32, and a second limiting rod 41 is installed on the front of the second fixing plate 40. The second limiting rod 41 extends through the outer side of the second limiting plate 39, allowing the second limiting rod 41 to pass through the second limiting plate 39 and thus restrict the second threaded sleeve 36. This allows the second threaded sleeve 36 to move stably when the second lead screw 35 is rotated by the rotating rod 34, which facilitates the use of the pushing block 38 to squeeze the first squeezing block 33. In turn, the patient's body can be pushed after being supported by the support plate 18, allowing the patient to lie on their side.

[0027] Specifically, the working process or principle of this pressure ulcer prevention pad is as follows: During use, an external air source pipe is connected to the inflatable airbag 5, allowing air to be injected into the airbag 5, causing it to inflate. This provides support to the patient when lying on the first pad 1 and the second pad 2. The airbag 5, in conjunction with the gel pad layer 4, further supports the patient, relieving skin pressure when lying supine. When the patient is lying supine on the first pad 1 and the second pad 2, pressure sensor 9 and temperature sensor 10 detect the patient's skin pressure and temperature, transmitting this data to the nurse station in real time. If excessive skin pressure or temperature is detected, the nurse station can issue an alarm, prompting the nurse to turn or move the patient. When pushing the patient to a side-lying position, the support mechanism tilts the support plate 18, allowing the patient to be pushed into a side-lying position, thus preventing pressure ulcers caused by prolonged bed rest.

Claims

1. A pressure ulcer prevention pad, comprising a first pad body (1) and a second pad body (2), characterized in that: The first pad (1) and the second pad (2) are provided with a connecting pad (3) on their inner sides. The top of the first pad (1), the second pad (2) and the connecting pad (3) are covered with a gel pad layer (4). The top of the first pad (1) and the second pad (2) are provided with multiple independently controlled inflatable airbags (5). The bottom of the first pad (1) and the second pad (2) is provided with a base plate (8). The top of the first pad (1) and the second pad (2) are provided with a support mechanism. The inner side of the first pad (1) and the second pad (2) is provided with a connecting mechanism. The bottom of the first pad (1) and the second pad (2) is provided with a monitoring mechanism. The monitoring agencies include: The first mounting groove (6) is distributed at the four corners of the bottom of the first pad (1) and the second pad (2); The first mounting plate (7) is inserted into the first mounting groove (6) and fixed to the top of the base plate (8); A pressure sensor (9) is mounted on the top of a first mounting plate (7), and a temperature sensor (10) is mounted on the top of a first mounting plate (7).

2. The pressure ulcer prevention pad according to claim 1, characterized in that, The connecting mechanism includes a first connecting plate (11), which is disposed on the front and rear sides of the bottom of the first pad (1). A connecting strip (12) is installed on the left side of the first connecting plate (11), and a second connecting plate (13) is installed on the left side of the connecting strip (12). A plug-in plate (14) is installed on the top of both the first connecting plate (11) and the second connecting plate (13), and the plug-in plate (14) is plugged into the bottom plate (8).

3. The pressure ulcer prevention pad according to claim 1, characterized in that, The surface of the first pad (1) is covered with a pad sleeve (15), the connecting pad (3) and the second pad (2) are both fitted inside the pad sleeve (15), and a zipper (16) is installed on the front of the pad sleeve (15).

4. The pressure ulcer prevention pad according to claim 1, characterized in that, The top of the first pad (1) and the second pad (2) are provided with a second mounting groove (17), and the inner cavity of the second mounting groove (17) is provided with a support plate (18), and the top of the support plate (18) is provided with a pad plate (19).

5. The pressure ulcer prevention pad according to claim 4, characterized in that, The support mechanism includes a support frame (20), which is installed on the top of the base plate (8) and located at the bottom of the support plate (18). A support seat (21) is installed on the top of the support frame (20), and a rotating plate (22) is rotatably installed on the inner side of the support seat (21).

6. The pressure ulcer prevention pad according to claim 5, characterized in that, A drive motor (23) is installed on the top of the base plate (8). A first lead screw (24) is installed at the output end of the drive motor (23). A first threaded sleeve (25) is installed on the surface of the first lead screw (24). A first movable frame (26) is installed on the top of the surface of the first threaded sleeve (25). A connecting frame (27) is installed on the outside of the first movable frame (26). A pulling frame (28) is installed on the top of the connecting frame (27). The top of the pulling frame (28) is movably connected to the rotating plate (22).

7. The pressure ulcer prevention pad according to claim 6, characterized in that, The top of the base plate (8) is equipped with a first fixing plate (29) located at the bottom of the first lead screw (24). A first limiting rod (30) is installed on the surface of the first fixing plate (29). A first limiting plate (31) is installed at the bottom of the first screw sleeve (25). The outer side of the first limiting rod (30) extends to the outer side of the first limiting plate (31).

8. The pressure ulcer prevention pad according to claim 4, characterized in that, The support mechanism includes a mounting frame (32), which is respectively mounted on the surfaces of the first pad (1) and the second pad (2). The support plate (18) is rotatably mounted in the inner cavity of the mounting frame (32). A first pressing block (33) is mounted on the bottom of the support plate (18), and the bottom of the first pressing block (33) is inclined.

9. The pressure ulcer prevention pad according to claim 8, characterized in that, A rotating rod (34) is installed on the outside of the mounting frame (32). The rotating rod (34) extends into the inner cavity of the mounting frame (32). A second lead screw (35) is installed at the end of the rotating rod (34). A second threaded sleeve (36) is installed on the surface of the second lead screw (35). A second movable frame (37) is installed on the surface of the second threaded sleeve (36). A push block (38) is installed on the back of the second movable frame (37), and the surface of the push block (38) is inclined.

10. The pressure ulcer prevention pad according to claim 9, characterized in that, The bottom of the second threaded sleeve (36) is equipped with a second limiting plate (39), the rear side of the inner wall of the mounting frame (32) is equipped with a second fixing plate (40), the front of the second fixing plate (40) is equipped with a second limiting rod (41), and the second limiting rod (41) extends through to the outside of the second limiting plate (39).