Training device for preventing lower limb deep venous thrombosis
By introducing a material winding component and a sensing component into the training device, the automatic replacement and reminder functions of disposable isolation pads are realized, which solves the hygiene problem of residues on the device surface, reduces the risk of cross-infection, and simplifies the management process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-13
- Publication Date
- 2026-03-31
AI Technical Summary
Existing training devices lack easily replaceable medical pads, resulting in the residue of patients' sweat and skin debris, increasing the risk of cross-infection, and their complex structure makes them difficult to clean.
A training device for preventing deep vein thrombosis in the lower extremities was designed. It uses a material winding assembly to achieve automatic replacement of disposable isolation pads and is equipped with a sensor to remind when to replace them. Full coverage isolation is achieved through magnetic noodles and flexible strips.
It effectively avoids the residue of sweat and skin flakes inside the device, improves the hygiene of the device, reduces the risk of cross-infection, and simplifies the management process.
Smart Images

Figure CN224056263U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a training device, and more particularly to a training device for preventing deep vein thrombosis of the lower extremities, which is applied in the field of training devices. Background Technology
[0002] Deep vein thrombosis (DVT) of the lower extremities is a common peripheral vascular disease, especially prevalent among those who are bedridden for extended periods, recovering from surgery, or are elderly and frail. It primarily occurs due to abnormal blood clotting within the deep veins of the lower extremities, obstructing the venous lumen and hindering venous return. Traditional prevention methods include anticoagulation medications and physical massage.
[0003] Chinese patent CN215938934U discloses an ankle pump flexion and extension exercise device for preventing deep vein thrombosis in the lower extremities. It includes two ankle support rings for wearing on the ankle support and a forefoot positioning sleeve for wearing on the toe support. While pulling to increase the distance between the blocking blocks, three tension ribs on the inner side of the mounting base can also be pulled out to reduce or put in to increase according to the training intensity requirements, so as to change the tension intensity required for the exercise over a wider range.
[0004] When different patients use the training device, if there is no easily replaceable medical pad, the patient's sweat, skin flakes, etc. will remain on the surface of the device, thereby increasing the risk of cross-infection. At the same time, the structure of the training device is usually quite complex, with many gaps and corners, which is a significant burden for the daily management of places such as hospitals or rehabilitation centers. Therefore, it is necessary to design a training device with a replaceable pad to prevent deep vein thrombosis in the lower extremities to solve the above problems. Summary of the Invention
[0005] In view of the above-mentioned prior art, the technical problem to be solved by this utility model is that when different patients use the training device, if there is no medical pad that is easy to replace, the patient's sweat, skin debris and other substances will remain on the surface of the device, thereby increasing the risk of cross-infection. At the same time, the structure of the training device is usually quite complex, with many gaps and corners, which is a significant burden for the daily management of places such as hospitals or rehabilitation centers.
[0006] To address the aforementioned problems, this utility model provides a training device for preventing deep vein thrombosis in the lower extremities. The device includes a training bed, with lower limb massage sleeves symmetrically fixed to the upper rear side of the training bed. A flexible pull plate is fixedly connected to the upper left side of the lower limb massage sleeve, and a metal nipple is fixedly connected to the end of the flexible pull plate near the lower limb massage sleeve. A magnetic nipple is fixedly connected to the right end of the lower limb massage sleeve, and the magnetic nipple and the metal nipple are magnetically connected. Multiple winding assemblies are provided at the lower end of the training bed. Each winding assembly includes a pair of corresponding fixed side plates, a rotating winding roller shaft installed between the two fixed side plates, and a motor connected to the rotating winding roller shaft. A disposable isolation pad is wound between two corresponding rotating winding roller shafts, covering the upper part of the lower limb massage sleeve. A strip-shaped slot is formed in the middle of the training bed, located above the corresponding winding assembly. The disposable isolation pad penetrates the inside and outside of the strip-shaped slot. An inflatable inner layer is fixedly connected to the inner end of the lower limb massage sleeve, and a pump is connected to the outer part of the inflatable inner layer. A sensing component is provided at the rear side of the winding assembly.
[0007] In the aforementioned training device for preventing deep vein thrombosis of the lower extremities, the lower limb massage sleeve in this design can be wound and unwound synchronously using a winding assembly before contact with the user's lower limbs. A new disposable isolation pad can be replaced promptly after each use, effectively isolating the user from direct contact with the lower limb massage sleeve. This better maintains the overall hygiene of the device and effectively avoids the drawback of patients' sweat and skin debris falling into the gaps and corners inside the lower limb massage sleeve, which are difficult to clean.
[0008] As a further improvement of this application, the sensing component includes an inner side slot formed on the inner wall of the fixed side plate near the rotating winding roller shaft.
[0009] As a further improvement of this application, the inner end of the inner side slot is slidably connected to a self-sliding crossbar, and the outer end of the self-sliding crossbar is rotatably connected to an outer rotating ring.
[0010] As a further improvement of this application, the outer rotating ring and the disposable isolation pad cooperate with each other, and the upper inner wall of the inner side strip groove is fixedly connected with a fixed side plate.
[0011] As another improvement of this application, the fixed side plate and the outer rotating ring cooperate with each other, and the left and right sides of the outer end of the rotating roller shaft are symmetrically fixedly connected with limit rings.
[0012] As a further improvement to this application, a disposable isolation pad is located between two limit rings, and an alarm is fixedly connected to the right end of the training bed.
[0013] As a further improvement to this application, the alarm is electrically connected to the fixed side panel, and multiple support legs are distributed in a rectangular pattern at the four corners of the lower end of the training bed.
[0014] In summary, before the lower limb massage sleeve comes into contact with the user's lower limbs, the winding assembly can simultaneously rewind and unwind. The width of the disposable isolation pad is much larger than the diameter of the lower limb massage sleeve. At this time, the metal strips on the flexible strip connect with the magnetic strips on the outside of the lower limb massage sleeve, allowing the lower limb massage sleeve to wrap around the outside of the lower limbs. The disposable isolation pad completely isolates the lower limbs, and a new disposable isolation pad can be replaced after each use. This effectively isolates the user from direct contact with the lower limb massage sleeve, better maintaining the overall hygiene of the device and effectively preventing the drawback of sweat and skin debris falling into the gaps and corners of the lower limb massage sleeve and being difficult to clean. At the same time, a sensor component with a reminder function is also set in the winding assembly. The outer rotating ring in the sensor component is continuously pulled out during the use of the disposable isolation pad. When the disposable isolation pad outside the rotating winding roller reaches the level that needs to be replenished, the outer rotating ring can contact the contact sensor, causing the fixed side plate to send a signal to the external alarm to remind the staff to deal with it in time, thereby ensuring the efficiency of the use of the disposable isolation pad. Attached Figure Description
[0015] Figure 1 This is an axonometric view of the training bed according to the first embodiment of this application;
[0016] Figure 2 This is the first embodiment of the present application. Figure 1 Enlarged view of a partial section of the training bed;
[0017] Figure 3 This is a side cross-sectional view of the lower limb massage sleeve according to the first embodiment of this application;
[0018] Figure 4 This is a schematic diagram of the disposable isolation pad in conjunction with the lower limbs according to the first embodiment of this application;
[0019] Figure 5 This is a schematic diagram of the limiting ring according to the second embodiment of this application;
[0020] Figure 6 This is a side view of the rotating winding roller according to the first embodiment of this application;
[0021] Figure 7 The first and second embodiments of this application Figure 5 Enlarged view of a partial truncated section of the central sensing component.
[0022] Explanation of the labels in the diagram:
[0023] 1. Training bed frame; 2. Lower limb massage sleeve; 3. Flexible padding sheet; 4. Metal noodles; 5. Magnetic noodles; 6. Slotted strip; 7. Material winding assembly; 8. Rotating winding roller shaft; 9. Disposable isolation pad; 10. Sensing assembly; 11. Side inner slotted strip; 12. Self-sliding crossbar; 13. External rotating ring; 14. Fixed side plate; 15. Limiting ring; 16. Alarm; 17. Inner layer of inflatable pad; 18. Support leg column; 19. Contact sensor. Detailed Implementation
[0024] The two embodiments of this application will be described in detail below with reference to the accompanying drawings.
[0025] First implementation method:
[0026] Figure 1-4 , Figure 6-7 This invention discloses a training device for preventing deep vein thrombosis in the lower extremities, comprising a training bed 1. A lower limb massage sleeve 2 is symmetrically fixedly connected to the upper rear side of the training bed 1. A flexible pull plate 3 is fixedly connected to the upper left side of the lower limb massage sleeve 2. A metal strip 4 is fixedly connected to the end of the flexible pull plate 3 near the lower limb massage sleeve 2. A magnetic strip 5 is fixedly connected to the right end of the lower limb massage sleeve 2, and the magnetic strip 5 and the metal strip 4 are magnetically connected. Multiple material winding assemblies 7 are provided at the lower end of the training bed 1. Each material winding assembly 7 includes a pair of corresponding fixed side plates 14. A rotating winding roller 8 is installed between the fixed side plates 14. A motor is connected to the rotating winding roller 8. A disposable isolation pad 9 is wound between two corresponding rotating winding rollers 8. The disposable isolation pad 9 covers the upper part of the lower limb massage sleeve 2. A strip-shaped slot 6 is opened in the middle of the training bed body 1, located above the corresponding winding assembly 7. The disposable isolation pad 9 passes through the inside and outside of the strip-shaped slot 6. An inflatable inner layer 17 is fixedly connected to the inner end of the lower limb massage sleeve 2. A pump is connected to the outside of the inflatable inner layer 17. A sensing assembly 10 is set on the rear side of the winding assembly 7.
[0027] Figure 1-4 , Figure 6-7 The sensing component 10 includes an inner side slot 11 formed on the inner wall of the fixed side plate 14 near the rotating winding roller shaft 8. A self-sliding crossbar 12 is slidably connected to the inner end of the inner side slot 11. A contact sensor 19 is fixedly connected to the upper inner wall of the inner side slot 11. The contact sensor 19 cooperates with the outer rotating ring 13. An alarm 16 is fixedly connected to the right end of the training bed 1. The alarm 16 is electrically connected to the contact sensor 19. Multiple support columns 18 are distributed in a rectangular shape at the four corners of the lower end of the training bed 1.
[0028] Figure 1-4 , Figure 6-7The diagram illustrates the user lying on the training bed 1. Upon starting the training program, the air pump inflates the inner layer 17 of the lower limb massage sleeve 2 at a preset inflation rate. The inner layer 17 gradually expands, inflating sequentially from the distal end of the leg towards the proximal end, and then deflating in the opposite direction, repeating this cycle. During this time, the entire lower limb is enveloped by the inner layer 17 of the air pad and subjected to moderate pressure, simulating muscle contraction, promoting blood flow, and providing a preventative effect. Simultaneously, before the lower limb massage sleeve 2 comes into contact with the user's lower limb, the winding assembly 7 can be used to simultaneously roll up and unroll it. The width of the disposable isolation pad 9 is much larger than the diameter of the lower limb massage sleeve 2. The metal strips 4 on the flexible strip 3 and the magnetic strips 5 on the outside of the lower limb massage sleeve 2 then interlock, allowing the lower limb massage sleeve 2 to wrap around the outside of the lower limb. The disposable isolation pad 9 completely isolates the lower limbs. After each use, a new disposable isolation pad 9 can be replaced in time, effectively isolating the user from direct contact with the lower limb massage sleeve 2. This better maintains the overall hygiene of the device and effectively avoids the drawback of the patient's sweat and skin debris falling into the gaps and corners of the lower limb massage sleeve 2, which are difficult to clean. At the same time, a sensor component 10 with a reminder function is also set in the winding assembly 7. The outer rotating ring 13 in the sensor component 10 is continuously pulled out during the use of the disposable isolation pad 9. When the disposable isolation pad 9 outside the rotating winding roller shaft 8 reaches the level that needs to be replenished, the outer rotating ring 13 can come into contact with the contact sensor 19, causing the fixed side plate 14 to send a signal to the external alarm 16 to remind the staff to deal with it in time, thereby ensuring the efficiency of the use of the disposable isolation pad 9.
[0029] Second implementation method:
[0030] Figure 5 , Figure 7 This invention illustrates a training device for preventing deep vein thrombosis in the lower extremities. An external rotating sleeve 13 is rotatably connected to the outer end of a self-sliding crossbar 12. The external rotating sleeve 13 cooperates with a disposable isolation pad 9. Limiting rings 15 are symmetrically fixed to the left and right sides of the outer end of a rotating winding roller shaft 8. The disposable isolation pad 9 is positioned between the two limiting rings 15. Simultaneously, when the self-sliding crossbar 12 and the disposable isolation pad 9 are in contact, the flexible rotating external rotating sleeve 13 can be set on the outside of the self-sliding crossbar 12. The external rotating sleeve 13 makes the pulling process of the disposable isolation pad 9 smoother and less prone to jamming. At the same time, limiting rings 15 with limiting functions are set in the rotating winding roller shaft 8. The limiting rings 15 can more accurately guide the winding position of the disposable isolation pad 9, thereby ensuring the stability of the winding and unwinding of the winding assembly 7.
[0031] In light of current practical needs, the above-described embodiments adopted in this application are not limited to these. Any changes made within the scope of knowledge possessed by those skilled in the art without departing from the concept of this application still fall within the protection scope of this utility model.
Claims
1. A training device for preventing deep vein thrombosis in the lower extremities, characterized in that: Including training bed body (1), the upper end rear side of training bed body (1) is fixedly connected with lower limb massage sleeve (2) in symmetry, the upper end left side of lower limb massage sleeve (2) is fixedly connected with flexible sheet (3), the end close to lower limb massage sleeve (2) of flexible sheet (3) is fixedly connected with metal noodles (4), the right end of lower limb massage sleeve (2) is fixedly connected with magnetic noodles (5), magnetic noodles (5) and metal noodles (4) are magnetically connected, the lower end of training bed body (1) is provided with a plurality of winding components (7), winding component (7) includes a pair of fixed side plates (14) corresponding to left and right, rotating winding roller shaft (8) is installed between two fixed side plates (14), motor is connected with rotating winding roller shaft (8), disposable isolation pad (9) is wound between two rotating winding roller shafts (8) corresponding to front and back, disposable isolation pad (9) covers the upper position of lower limb massage sleeve (2), strip-shaped slot (6) is set up in the upper position of corresponding winding component (7) in the middle of training bed body (1), disposable isolation pad (9) penetrates the inner and outer positions of strip-shaped slot (6), the inner end of lower limb massage sleeve (2) is fixedly connected with inflatable pad inner layer (17), pump machine is connected with inflatable pad inner layer (17), the rear side of winding component (7) is provided with induction component (10).
2. The training device for preventing deep vein thrombosis of lower extremity according to claim 1, wherein: The induction component (10) includes a side inner strip-shaped slot (11) formed in the inner wall of the fixed side plate (14) near the rotating winding roller shaft (8).
3. The training device for preventing deep vein thrombosis of lower extremity according to claim 2, wherein: The inner end of the side inner strip-shaped slot (11) is slidably connected with a self-sliding cross bar (12), and the outer end of the self-sliding cross bar (12) is rotatably connected with an external rotating loop (13).
4. The training device for preventing deep vein thrombosis of lower extremity according to claim 3, wherein: The external rotating loop (13) cooperates with the disposable isolation pad (9), and the upper inner wall of the side inner strip-shaped slot (11) is fixedly connected with a contact inductor (19).
5. The training device for preventing deep vein thrombosis of lower extremity according to claim 4, wherein: The contact inductor (19) cooperates with the external rotating loop (13), and the outer ends of the rotating winding roller shafts (8) are symmetrically fixedly connected with limiting loops (15) on the left and right sides.
6. The training device for preventing deep vein thrombosis of lower extremity according to claim 5, wherein: The disposable isolation pad (9) is located between the two limiting loops (15), and the right end of the training bed body (1) is fixedly connected with an alarm (16).
7. The training device for preventing deep vein thrombosis of lower extremity according to claim 6, wherein: The alarm (16) is electrically connected with the contact inductor (19), and the lower end of the training bed body (1) is rectangularly distributed with a plurality of leg columns (18).
Citation Information
Patent Citations
Ankle pump flexion and extension exercise device for preventing lower limb deep venous thrombosis
CN215938934U