Air-filled heel protector pad
By introducing a limiting and adjusting mechanism into the pressure ulcer-preventing inflatable heel protector, the problem of protector displacement is solved, ensuring that the airbag fits the heel stably, improving the comfort of use and the pressure ulcer prevention effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHENGDE CENT HOSPITAL
- Filing Date
- 2025-06-27
- Publication Date
- 2026-07-24
AI Technical Summary
Existing inflatable heel protectors for pressure ulcers are prone to shifting during use, affecting treatment outcomes.
The design incorporates a U-shaped airbag and a horizontal tube. Through the limiting and adjusting mechanisms, the airbag is designed to stably fit the heel. The height and spacing can be adjusted using a knob to prevent displacement.
This achieves stable fixation of the airbag, enhances patient comfort and treatment effectiveness, and prevents pressure sores on the heel.
Smart Images

Figure CN224540502U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical assistive device technology, specifically to an inflatable heel protector to prevent pressure sores. Background Technology
[0002] In clinical nursing, patients who are bedridden for extended periods are highly susceptible to pressure sores due to prolonged pressure on the heel skin and poor blood circulation. Inflatable pressure-resistant heel protectors, by inflating and cushioning the heel, effectively reduce pressure and prevent pressure sores. However, existing inflatable pressure-resistant heel protectors have several problems during use, the most prominent being their tendency to shift. During patient turning over or leg movements, the protector may slip or shift off the heel, causing renewed pressure and affecting treatment effectiveness. Summary of the Invention
[0003] In view of the above-mentioned problems of existing pressure ulcer-preventing inflatable heel protectors, this utility model is proposed.
[0004] The purpose of this invention is to provide an inflatable heel protector to prevent pressure sores, thus solving the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: An inflatable heel protector for pressure sores includes two U-shaped air bladders and a horizontal tube. The horizontal tube is positioned between the two U-shaped air bladders. Movable rods are movably connected to both ends of the horizontal tube. The end of the movable rod furthest from the horizontal tube is fixedly connected to the corresponding U-shaped air bladder. A cavity is formed inside the end of the movable rod closest to the horizontal tube. A limiting mechanism is provided inside the cavity to restrict the movement of the movable rod relative to the horizontal tube. A U-shaped hook is provided above the horizontal tube, and an adjustment mechanism for adjusting the height of the U-shaped hook is provided on the upper side of the middle end of the horizontal tube.
[0006] Preferably, the limiting mechanism includes a stop block and a locking block. The stop block is slidably disposed vertically inside the cavity opened at the end of the movable rod. The locking block is fixedly disposed on the stop block. Multiple through holes are sequentially opened from left to right on the upper surface of the horizontal tube. The through holes are adapted to the locking blocks. The upper end of the locking block can engage with the corresponding through hole. A spring is fixedly disposed on the lower side of the stop block. The other end of the spring abuts against the bottom wall of the inner cavity.
[0007] Preferably, the adjusting mechanism includes an internally threaded tube and a second threaded rod. The internally threaded tube is fixedly disposed in the middle of the upper surface of the horizontal tube, and the second threaded rod is threadedly sleeved in the internally threaded tube. The upper end of the second threaded rod is rotatably connected to a U-shaped hook.
[0008] Preferably, the longitudinal sections of both the horizontal tube and the movable rod are rectangular, and the wall of the movable rod abuts against the inner wall of the horizontal tube.
[0009] Preferably, an inflation port is provided on one side of the U-shaped airbag, an inflation tube is fixedly provided on the outside of the inflation port, and a plug is threaded onto the outer wall of the end of the inflation tube away from the U-shaped airbag.
[0010] Preferably, a first threaded rod is threadedly connected to one end of the U-shaped hook, the first threaded rod is connected to the open end of the U-shaped hook, and a first knob is fixedly sleeved at the lower end of the first threaded rod.
[0011] Preferably, a second knob is fixedly sleeved on the second threaded rod, and a rotating handle is also fixedly provided on the outer periphery of the second knob.
[0012] Preferably, an anti-slip layer is provided on the outer wall of the plug.
[0013] Preferably, the surface of the U-shaped airbag is provided with a wear-resistant layer.
[0014] Furthermore, a T-shaped head is provided at the top of the second threaded rod. The diameter of the T-shaped head is larger than the diameter of the second threaded rod. The second threaded rod is rotatably hooked onto the U-shaped hook through the T-shaped head.
[0015] Preferably, both the stop block and the cavity have rectangular cross-sections, and the sidewall of the stop block abuts against the inner wall of the cavity.
[0016] The technical effects and advantages provided by this utility model in the above technical solution are as follows: This invention utilizes two airbags to effectively support the heel, reducing pressure and preventing pressure sores. The position of the movable rod can be adjusted by pressing the stop block, thereby regulating the distance between the two U-shaped airbags and ensuring a stable fit. The height of the U-shaped airbags can be adjusted by rotating the knob to accommodate the patient's leg extension, increasing comfort after lowering the foot. A limiting mechanism quickly restricts the movement of the movable rod, fixing the position of the U-shaped airbags and preventing displacement of the protective pad during use, thus ensuring therapeutic effectiveness. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.
[0018] Figure 1 This is a schematic diagram of the structure of an inflatable heel protector for pressure sores proposed in this utility model; Figure 2 This is a perspective view of the limiting mechanism in this utility model; Figure 3 This is a perspective view of the adjustment mechanism in this utility model; Figure 4 This is a schematic diagram of the internal structure of the U-shaped airbag in this utility model; Figure 5 for Figure 1 A schematic diagram of the structure with the middle plug and inflation tube separated; Figure 6 for Figure 5 A structural diagram from another perspective.
[0019] Explanation of reference numerals in the attached figures: 1. U-shaped airbag; 2. Horizontal tube; 3. Movable rod; 4. Inflation tube; 5. Plug; 6. Internal threaded tube; 7. Second threaded rod; 8. U-shaped hook; 9. First threaded rod; 10. Stop block; 11. Spring; 12. Locking block; 13. First knob; 14. Second knob. Detailed Implementation
[0020] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.
[0021] Reference Figure 1-6 An inflatable heel protector for pressure sores includes two U-shaped air bladders 1 and a horizontal tube 2. The two U-shaped air bladders 1 are respectively located at both ends of the horizontal tube 2. The surface of each U-shaped air bladder 1 has a wear-resistant layer to extend its service life. The horizontal tube 2 is positioned between the two U-shaped air bladders 1. Movable rods 3 are movably connected to both ends of the horizontal tube 2. Both the horizontal tube 2 and the movable rods 3 have rectangular cross-sections, preventing the movable rods 3 from rotating relative to the horizontal tube 2, thus allowing them to slide stably within the horizontal tube 2. The movable rods 3 are positioned away from the horizontal tube 2. One end of the movable rod 3 is fixedly connected to the corresponding U-shaped airbag 1. A cavity is opened inside the end of the movable rod 3 near the horizontal tube 2. A limiting mechanism is installed inside the cavity to restrict the movement of the movable rod 3 relative to the horizontal tube 2. A U-shaped hook 8 is installed above the horizontal tube 2. One end of the U-shaped hook 8 is threadedly connected to a first threaded rod 9. Specifically, the first threaded rod 9 is connected to the open end of the U-shaped hook 8. A threaded hole is provided on the upper plate of the open end of the U-shaped hook 8, and a smooth hole is provided on the lower plate. The first threaded rod 9 passes through the smooth hole on the lower plate and is threadedly connected to the threaded hole on the upper plate. A first knob 13 is fixedly sleeved on the lower end of the first threaded rod 9 for easy rotation. An adjustment mechanism for adjusting the height of the U-shaped hook 8 is provided on the upper side of the middle end of the horizontal tube 2.
[0022] Reference Figure 1-6The limiting mechanism includes a stop block 10 and a locking block 12. The stop block 10 is slidably disposed vertically in the cavity opened at the end of the movable rod 3. The locking block 12 is fixedly disposed on the upper side of the stop block 10. Multiple through holes are opened sequentially from left to right on the upper surface of the horizontal tube 2. The through holes are adapted to the locking block 12. The upper end of the locking block 12 is engaged with the corresponding through hole. A spring 11 is fixedly disposed on the lower side of the stop block 10. The other end of the spring 11 abuts against the bottom wall of the inner cavity of the cavity at the end of the movable rod 3.
[0023] Reference Figure 1-6 The adjusting mechanism includes an internally threaded tube 6 and a second threaded rod 7. The internally threaded tube 6 is fixedly installed in the middle of the upper surface of the horizontal tube 2. The second threaded rod 7 is threadedly sleeved in the internally threaded tube 6. The upper end of the second threaded rod 7 is rotatably connected to the U-shaped hook 8. This rotatable connection can be achieved by fixing a bracket to the bottom of the lower plate of the U-shaped hook 8, and fixing a T-shaped head to the upper end of the second threaded rod 7. The diameter of the T-shaped head is larger than the diameter of the second threaded rod 7, allowing the T-shaped head to hang on the bracket at the bottom of the U-shaped hook 8 and rotate freely on the bracket. Alternatively, a sliding hole can be opened in the lower plate of the U-shaped hook 8, through which the second threaded rod 7 passes. The T-shaped head at the upper end of the second threaded rod 7 is positioned above the lower plate of the U-shaped hook 8, allowing the second threaded rod 7 to be rotatably hung on the U-shaped hook 8. The T-shaped head can be integrally formed with the second threaded rod 7 or threadedly connected.
[0024] A second knob 14 is also fixedly sleeved on the second threaded rod 7 to facilitate rotation of the second threaded rod 7. Furthermore, to facilitate rotation of the second knob 14, a rotating handle can be fixedly welded to the outer periphery of the second knob 14. Rotating the second knob 14 will drive the second threaded rod 7 to rotate, thereby driving the horizontal tube 2 to rise or fall.
[0025] Reference Figure 1-6 An inflation port is provided on one side of the U-shaped airbag 1. An inflation tube 4 is fixedly installed on the outside of the inflation port. A plug 5 is threaded onto the outer wall of the end of the inflation tube 4 away from the U-shaped airbag 1 to facilitate the inflation and deflation of the U-shaped airbag 1. The outer wall of the plug 5 is provided with an anti-slip layer to increase the friction between the hand and the plug 5 and to prevent slippage when rotating the plug 5.
[0026] In use, this invention involves inflating the U-shaped airbag 1 with gas through the inflation tube 4, then sealing the inflation tube 4 with the cap 5, and finally hanging the invention at the foot of the bed using the U-shaped hook 8. For different bed structures, if it is inconvenient to directly hang the invention on the bed end board using the U-shaped hook 8, a transfer connecting rod or an L-shaped transfer connecting bracket can be used to connect the U-shaped hook 8 to the bed end board. Then, according to the patient's body shape, the position of the movable rod 3 is adjusted by pressing the stop block 10, thereby adjusting the distance between the two U-shaped airbags 1, allowing the U-shaped airbags 1 to stably fit the heel. The height of the U-shaped airbags 1 is then adjusted by rotating the knob 13 to accommodate the patient's extended leg height, increasing comfort after the patient places their foot. After adjusting the height and width, the patient places their foot on the U-shaped airbag 1, allowing the airbag to effectively support the heel, reducing pressure on the heel and preventing pressure sores.
[0027] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.
Claims
1. An inflatable heel protector for preventing pressure sores, comprising a U-shaped air bladder (1) and a horizontal tube (2), wherein two U-shaped air bladders (1) are provided, characterized in that: A horizontal tube (2) is located between two U-shaped airbags (1). Both ends of the horizontal tube (2) are movably connected to movable rods (3). The end of the movable rod (3) away from the horizontal tube (2) is fixedly connected to the corresponding U-shaped airbag (1). The end of the movable rod (3) near the horizontal tube (2) has a cavity. A limiting mechanism that restricts the movement of the movable rod (3) relative to the horizontal tube (2) is provided in the cavity. A U-shaped hook (8) is provided above the horizontal tube (2). An adjustment mechanism for adjusting the height of the U-shaped hook (8) is provided on the upper side of the middle end of the horizontal tube (2).
2. The anti-pressure sore inflatable heel protector according to claim 1, characterized in that: The limiting mechanism includes a stop (10) and a locking block (12). The stop (10) is slidably disposed vertically in the cavity opened at the end of the movable rod (3). The locking block (12) is fixedly disposed on the stop (10). Multiple through holes are opened sequentially from left to right on the upper surface of the horizontal tube (2). The through holes are adapted to the locking block (12). The upper end of the locking block (12) can be engaged with the corresponding through hole. A spring (11) is fixedly disposed on the lower side of the stop (10). The other end of the spring (11) abuts against the bottom wall of the cavity.
3. The anti-pressure sore inflatable heel protector according to claim 1, characterized in that: The adjustment mechanism includes an internally threaded tube (6) and a second threaded rod (7). The internally threaded tube (6) is fixedly disposed in the middle of the upper surface of the horizontal tube (2). The second threaded rod (7) is threadedly sleeved in the internally threaded tube (6). The upper end of the second threaded rod (7) is rotatably connected to a U-shaped hook (8).
4. The anti-pressure sore inflatable heel protector according to claim 1, characterized in that: The longitudinal sections of both the horizontal tube (2) and the movable rod (3) are rectangular, and the wall of the movable rod (3) abuts against the inner wall of the horizontal tube (2).
5. The anti-pressure sore inflatable heel protector according to claim 1, characterized in that: An inflation port is provided on one side of the U-shaped airbag (1), and an inflation tube (4) is fixedly provided on the outside of the inflation port. A plug (5) is threaded onto the outer wall of the end of the inflation tube (4) away from the U-shaped airbag (1).
6. The anti-pressure sore inflatable heel protector according to claim 1, characterized in that: A first threaded rod (9) is threaded to one end of the U-shaped hook (8). The first threaded rod (9) is connected to the open end of the U-shaped hook (8). A first knob (13) is fixedly sleeved on the lower end of the first threaded rod (9).
7. The anti-pressure sore inflatable heel protector according to claim 3, characterized in that: A second knob (14) is fixedly sleeved on the second threaded rod (7), and a rotating handle is also fixedly installed on the outer periphery of the second knob (14).
8. The anti-pressure sore inflatable heel protector according to claim 5, characterized in that: An anti-slip layer is provided on the outer wall of the plug (5), and a wear-resistant layer is provided on the surface of the U-shaped airbag (1).
9. The anti-pressure sore inflatable heel protector according to claim 3, characterized in that: A T-shaped head is provided at the top of the second threaded rod (7). The diameter of the T-shaped head is larger than the diameter of the second threaded rod (7). The second threaded rod (7) is rotated and hooked onto the U-shaped hook (8) through the T-shaped head.
10. The anti-pressure sore inflatable heel protector according to claim 2, characterized in that: Both the block (10) and the cavity have rectangular cross-sections, and the sidewall of the block (10) abuts against the inner wall of the cavity.