Prevention of deep vein thrombosis in the lower limbs bed training device

Abstract

The application provides a bed training device for preventing lower extremity deep vein thrombosis, which comprises oppositely arranged foot pedal assemblies, detachable bed edge fixing devices and resistance adjusting modules. The foot pedal assemblies are oppositely arranged, and each foot pedal assembly comprises a foot pedal with an arc-shaped arch limiting groove and an elastic bandage integrated with a pressure sensor. The height-adjustable support comprises a lifting aluminum alloy stand and a rotating joint with an angle scale. The foot pedal assemblies are oppositely arranged on the two sides of the resistance adjusting module. By using the auxiliary training device, the device is installed on a patient's bed, the patient's feet are fixed on the foot pedal assemblies, active resistance or passive resistance is selected according to the patient's condition, then the resistance value is adjusted according to the doctor's order, and the bed training is started. The patient can move the lower limbs without the continuous assistance of medical staff, the frequency and amplitude of the lower limb movement of the patient in bed are improved, and thus the incidence of lower extremity deep vein thrombosis is reduced.

Description

Technical Field

[0001] This utility model relates to the field of medical auxiliary rehabilitation equipment technology, specifically a bed training device for preventing deep vein thrombosis in the lower extremities. Background Technology

[0002] Deep vein thrombosis (DVT) of the lower extremities is a disease caused by the abnormal coagulation of blood within the deep veins of the lower extremities, forming a blood clot that obstructs the blood vessel lumen and leads to impaired venous return. Venous thromboembolism (VTE) is a common clinical condition, primarily including deep vein thrombosis (DVT) and pulmonary thromboembolism (PTE). When a deep vein thrombosis detaches, the embolus can travel through the bloodstream to the pulmonary artery, causing a pulmonary embolism. Lower extremity DVT is the most common type of deep vein thrombosis; therefore, preventing lower extremity DVT is crucial for reducing the incidence of pulmonary thromboembolism.

[0003] Currently, there are various measures to prevent deep vein thrombosis in the lower extremities. However, for patients who are bedridden for a long time or unable to get out of bed after surgery, lower limb movement has always been a difficult problem for both doctors and patients, often requiring the assistance of medical staff and greatly increasing their workload.

[0004] Therefore, designing an auxiliary device that can effectively prevent deep vein thrombosis in the lower extremities of bedridden patients, while saving manpower and resources and bringing better social and economic benefits, has become an urgent problem to be solved. Summary of the Invention

[0005] The purpose of this invention is to provide a bed training device for preventing deep vein thrombosis in the lower extremities, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A bed training device for preventing deep vein thrombosis of the lower extremities includes: a foot pedal assembly arranged opposite each other, a detachable bed edge fixing device, and a resistance adjustment module; The foot pedal assemblies are arranged opposite each other, and the foot pedal assemblies include: foot pedals with arc-shaped arch limiting grooves and elastic straps with integrated pressure sensors; The detachable bed edge fixing device includes: a clamp and a height-adjustable bracket. The height-adjustable bracket includes: a lifting aluminum alloy column and a rotating joint with an angle scale. The clamp is located at the bottom of the height-adjustable bracket. The rotating joint with the angle scale is mounted on the lifting aluminum alloy column. The resistance adjustment module is rotatably located on the other side of the rotating joint. The foot pedal assembly is located on both sides of the resistance adjustment module.

[0007] Optionally, the resistance adjustment module includes: a rotating wheel, a brake disc, and an electromagnetic braking system; the foot pedal assembly is mounted opposite to each other on both sides of the rotating wheel, and the brake disc is coaxially fixed with the rotating wheel; the electromagnetic braking system cooperates with the brake disc to provide adjustable resistance to the brake disc.

[0008] Optionally, the electromagnetic braking system includes: an adjustable current electromagnetic coil and a resistance value display module; the adjustable current electromagnetic coil is used to change the magnetic force by changing the current magnitude, thereby changing the resistance of the electromagnetic braking system to the brake disc; wherein, the resistance adjustment range is 0-50N, and the minimum adjustment unit is 1N.

[0009] Optionally, the depth of the arch support groove of the foot pedal is 2-3cm; the elastic strap has a built-in thin-film pressure sensor with an adjustable alarm threshold of 50-200kPa.

[0010] Optionally, the height-adjustable bracket's lifting column adopts a nested telescopic structure; the height adjustment range is 25-35cm, and it is equipped with a quick-locking knob.

[0011] Optionally, a medical-grade antibacterial coating may be applied to the surface of the bed trainer for preventing deep vein thrombosis of the lower extremities; the overall weight of the bed trainer for preventing deep vein thrombosis of the lower extremities shall not exceed 3 kg.

[0012] Compared with existing technologies, this application provides a bed training device for preventing deep vein thrombosis in the lower extremities, comprising: a foot pedal assembly, a detachable bed edge fixing device, and a resistance adjustment module, all arranged opposite each other. The foot pedal assembly includes a foot pedal with an arc-shaped arch support groove and an elastic strap with an integrated pressure sensor. The detachable bed edge fixing device includes a clamp and a height-adjustable bracket, which includes a lifting aluminum alloy column and a rotating joint with an angle scale. The clamp is located at the bottom of the height-adjustable bracket, the rotating joint with the angle scale is mounted on the lifting aluminum alloy column, and the resistance adjustment module is rotatably mounted on the other side of the rotating joint. The foot pedal assembly is arranged opposite each other on both sides of the resistance adjustment module. By designing the bed training device for preventing deep vein thrombosis in the lower extremities of this application, after installing the device on the patient's bed and fixing the patient's feet to the foot pedal assembly, the resistance value can be adjusted according to the doctor's orders, and bed training can begin without continuous assistance from medical personnel. The device provided by this application is more practical and has good clinical application results. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of a bed training device for preventing deep vein thrombosis in the lower extremities.

[0014] Figure 2 for Figure 1A partial structural diagram.

[0015] Figure 3 for Figure 1 An enlarged diagram of the top structure.

[0016] In the diagram: 1. Foot pedal assembly; 2. Fixing device; 3. Foot pedal; 4. Elastic strap; 5. Clamp; 6. Electromagnetic brake system; 7. Lifting aluminum alloy column; 8. Rotary joint with angle scale; 9. Rotary wheel; 10. Brake disc. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Furthermore, the elements in this invention are referred to as being "fixed to" or "set on" another element, which may be directly on the other element or may also include an intervening element. When an element is considered to be "connected" to another element, it may be directly connected to the other element or may also include an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0019] Please see Figures 1-3 In this embodiment of the present invention, a bed trainer for preventing deep vein thrombosis of the lower extremities includes: a foot pedal assembly 1, a detachable bed edge fixing device 2, and a resistance adjustment module, all arranged opposite each other. The foot pedal assembly 1 includes: a foot pedal 3 with an arc-shaped arch limiting groove and an elastic strap 4 with an integrated pressure sensor. The detachable bed edge fixing device 2 includes: a clamp 5 and a height-adjustable bracket. The height-adjustable bracket includes: a lifting aluminum alloy column 7 and a rotating joint 8 with an angle scale. The clamp 5 is disposed at the bottom of the height-adjustable bracket, the rotating joint 8 with an angle scale is mounted on the lifting aluminum alloy column, and the resistance adjustment module is rotatably disposed on the other side of the rotating joint. The foot pedal assembly 1 is disposed opposite each other on both sides of the resistance adjustment module.

[0020] At least two clamps 5 can be provided and fixed on both sides of the hospital bed respectively, so that the connection between the device provided in this application and the hospital bed can be more stable.

[0021] In this embodiment, the C-type clamp is made of 304 stainless steel with a 3mm thick silicone cushioning layer on the inside; the thermoplastic foot pedal 3 has an arch groove with a curvature radius of 120mm±5mm; the surface is provided with anti-slip protrusions 101a with a height of 1.5mm; the strap system is a 50mm wide nylon hook and loop strap; and the embedded thin-film pressure sensor is also included.

[0022] In one specific embodiment, the resistance adjustment module includes: a rotating wheel 9, a brake disc 10, and an electromagnetic braking system 6; the foot pedal assembly 1 is installed opposite to each other on both sides of the rotating wheel 9, and the brake disc 10 is coaxially fixed with the rotating wheel 9; the electromagnetic braking system 6 cooperates with the brake disc 10 to provide adjustable resistance to the brake disc 10.

[0023] In this embodiment, the resistance adjustment module may include an active resistance adjustment module and a passive resistance adjustment module. The active resistance adjustment module includes a brushless motor and a magnetic powder brake that works with it. This control method is a conventional technique in the field and is not limited in this application. For example, it is the motor speed control of an electric bicycle, with a control accuracy of ±0.5N. The passive resistance adjustment module is used when the patient exerts force. It can be equipped with three sets of 403 coil spring pre-compression structures. Different resistance adjustments are achieved by pressing the brake pads with coil springs of different pressures. To improve safety, a safety lock can be configured on the quick-switch lever. Its principle is the same as the pressure adjustment method of an exercise bike. This application has not made any improvements to it. The same function can be achieved by applying its technical principle to this application.

[0024] In one specific embodiment, the inner side of the clamp 5 is provided with an anti-slip rubber layer, and the clamp opening adjustment range is 5-15cm; the electromagnetic braking system 6 includes: an adjustable current electromagnetic coil and a resistance value display module; the adjustable current electromagnetic coil is used to change the magnetic force by changing the current magnitude, thereby changing the resistance of the electromagnetic braking system 6 to the brake disc 10; wherein, the resistance adjustment range is 0-50N, and the minimum adjustment unit is 1N. The arch limiting groove depth of the foot pedal 3 is 2-3cm; the elastic strap 4 has a built-in thin-film pressure sensor, and the alarm threshold is adjustable from 50-200kPa. The lifting column of the height-adjustable bracket adopts a nested telescopic structure; the height adjustment range is 25-35cm, and it is equipped with a quick-locking knob. The surface of the bed trainer for preventing deep vein thrombosis of the lower extremities is coated with a medical-grade antibacterial coating; the overall weight of the bed trainer for preventing deep vein thrombosis of the lower extremities does not exceed 3kg.

[0025] Example 1 Mechanical Resistance Mode Spring selection: Switch the lever to "Medium" for 15N resistance; a "click" sound indicates locking is complete; Safety test: Simulate foot spasm by applying 250kPa pressure; the system triggers emergency release after 2.8 seconds.

[0026] By designing the bed training device for preventing deep vein thrombosis of the lower extremities in this application, after the device is installed on the patient's bed, the patient's feet are fixed on the foot pedal assembly 1. Then, the patient can adjust the resistance value according to the doctor's order and start bed training without the need for continuous assistance from medical staff. The device provided by this application is more practical and has good clinical application results.

[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0028] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A bed-based training device for preventing deep vein thrombosis of the lower extremities, characterized in that, include: The relative foot pedal assembly (1), the detachable bed edge fixing device (2), and the resistance adjustment module; The foot pedal assembly (1) is arranged opposite to each other, and the foot pedal assembly (1) includes: a foot pedal (3) with an arc-shaped arch limiting groove and an elastic strap (4) with an integrated pressure sensor. The detachable bed edge fixing device (2) includes: a clamp (5) and a height-adjustable bracket. The height-adjustable bracket includes: a lifting aluminum alloy column (7) and a rotating joint (8) with an angle scale. The clamp (5) is located at the bottom of the height-adjustable bracket. The rotating joint (8) with an angle scale is installed on the lifting aluminum alloy column. The resistance adjustment module is rotatably located on the other side of the rotating joint. The foot pedal assembly (1) is located on both sides of the resistance adjustment module.

2. The bed training device for preventing deep vein thrombosis of the lower extremities according to claim 1, characterized in that: The resistance adjustment module includes: a rotating wheel (9), a brake disc (10), and an electromagnetic braking system (6); the foot pedal assembly (1) is installed on both sides of the rotating wheel (9), and the brake disc (10) is coaxially fixed with the rotating wheel (9); the electromagnetic braking system (6) cooperates with the brake disc (10) to provide adjustable resistance to the brake disc (10).

3. The bed training device for preventing deep vein thrombosis of the lower extremities according to claim 1, characterized in that: The clamp (5) has an anti-slip rubber layer on its inner side, and the clamp opening adjustment range is 5-15cm.

4. The bed training device for preventing deep vein thrombosis of the lower extremities according to claim 2, characterized in that: The electromagnetic braking system (6) includes: an adjustable current electromagnetic coil and a resistance value display module; the adjustable current electromagnetic coil is used to change the magnetic force by changing the current magnitude, thereby changing the resistance of the electromagnetic braking system (6) to the brake disc (10); wherein, the resistance adjustment range is 0-50N, and the minimum adjustment unit is 1N.

5. The bed training device for preventing deep vein thrombosis of the lower extremities according to claim 1, characterized in that: The foot pedal (3) has an arch-limiting groove depth of 2-3cm; the elastic strap (4) has a built-in thin-film pressure sensor with an adjustable alarm threshold of 50-200kPa.

6. The bed training device for preventing deep vein thrombosis of the lower extremities according to claim 1, characterized in that: The height-adjustable bracket's lifting column adopts a nested telescopic structure; the height adjustment range is 25-35cm, and it is equipped with a quick-lock knob.

7. The bed training device for preventing deep vein thrombosis of the lower extremities according to any one of claims 1-6, characterized in that, The surface of the bed trainer for preventing deep vein thrombosis in the lower extremities is coated with a medical-grade antibacterial coating; the overall weight of the bed trainer for preventing deep vein thrombosis in the lower extremities does not exceed 3 kg.

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