A foot drop prevention device for use in emergency intensive care units

Abstract

This invention discloses a foot drop prevention device for use in an emergency intensive care unit, comprising a base plate, an electromagnetic plate, and a pair of fixing members. A pair of adjusting plates are slidably connected to the front end of the base plate. A prevention member is hinged to the end of the adjusting plate away from the base plate. The prevention member includes a magnetic footplate hinged to the end of the adjusting plate away from the base plate. A torsion spring is installed at the hinge point between the adjusting plate and the magnetic footplate. A collar and a restraint strap are fixedly connected to the end of the magnetic footplate away from the base plate, with Velcro at the outer end of the restraint strap. The electromagnetic plate is fixedly connected to the end of the base plate near the prevention member, and is located at the upper end of the adjusting plate. The pair of fixing members are fixedly connected to the left and right ends of the base plate, respectively. This invention, through the intermittent magnetic attraction between the electromagnetic plate and the magnetic footplate, combined with the rebound effect of the torsion spring, can drive the patient's foot to perform reciprocating flexion and extension movements, helping to maintain ankle joint mobility and playing a positive role in reducing the risk of foot drop and assisting in early rehabilitation training.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and more specifically, to a foot drop prevention device for use in emergency intensive care units. Background Technology

[0002] Patients admitted to the emergency intensive care unit often present with altered mental status, loss of limb muscle strength, limited voluntary movement, and prolonged bed rest and immobilization. Due to paralysis of the anterior calf muscles and persistent spasm and traction of the posterior calf muscles, coupled with a lack of effective foot support and passive movement, these patients are highly susceptible to foot drop deformities. They are also prone to complications such as heel pressure sores, ankle stiffness, and lower extremity deep vein thrombosis, which seriously affect their subsequent rehabilitation and quality of life, and may even increase the disability rate.

[0003] Most existing foot drop prevention devices on the market have numerous technical defects, making them difficult to adapt to the special usage scenarios of emergency intensive care units. Most devices use a fixed structure, unable to be flexibly adjusted according to patient body size, foot spacing, and bed width, resulting in poor adaptability. Installation and fixing procedures are cumbersome, with some devices even requiring bed modifications, hindering rapid deployment in emergency situations. Secondly, conventional devices only provide static foot fixation, failing to induce passive reciprocating flexion and extension rehabilitation movements. Prolonged static fixation can exacerbate muscle atrophy and joint stiffness. Furthermore, the sealed, non-breathable area where the device contacts the foot can lead to excessive heat, sweating, and maceration of the sole with prolonged use. The lack of massage and soothing structures further hinders local blood circulation, increasing the risk of pressure sores. In addition, most existing devices lack medication delivery and foot warming functions, failing to enhance rehabilitation effects when combined with external medications. Patient foot comfort is poor, and some devices with movable structures have excessively fast rebound speeds, potentially causing secondary impact on the patient's foot, raising concerns about safety. Therefore, in view of the above-mentioned technical problems, it is necessary to provide a foot drop prevention device for use in emergency intensive care units. Summary of the Invention

[0004] The purpose of this invention is to provide a foot drop prevention device for use in emergency intensive care units, in order to solve the above-mentioned problems.

[0005] To achieve the above objectives, an embodiment of the present invention provides the following technical solution: A foot drop prevention device for use in an emergency intensive care unit includes a base plate, an electromagnetic plate, and a pair of fixing members. A pair of adjusting plates are slidably connected to the front end of the base plate. A prevention member is hinged to the end of the adjusting plate away from the base plate. The prevention member includes a magnetic foot plate hinged to the end of the adjusting plate away from the base plate. A torsion spring is installed at the hinge point between the adjusting plate and the magnetic foot plate. A collar and a restraining strap are fixedly connected to the end of the magnetic foot plate away from the base plate, respectively. The outer end of the restraining strap has a Velcro fastener. The electromagnetic plate is fixedly connected to the end of the base plate near the prevention member, and the electromagnetic plate is located at the upper end of the adjusting plate. The pair of fixing members are respectively fixedly connected to... The base plate is secured to the sides of the bed by a pair of fasteners, allowing it to be stably positioned at the patient's feet. By sliding and adjusting a pair of adjustment plates, a pair of preventative feet are positioned at the soles of the patient's feet. After passing a loop through a restraint strap, the foot is bound to the magnetic footplate and secured with Velcro. This allows for the use of different patients' feet. Subsequently, an electromagnetic plate intermittently activates the magnets, attracting the magnetic footplates to rotate against the spring force. After the magnets are released, the preventative feet are reset by the rebound force of the spring. This prevents foot drop while simultaneously promoting reciprocating rehabilitation movements of the patient's feet.

[0006] As a further improvement of the present invention, the preventive component also includes a plurality of massage pestles. The magnetic foot plate has a plurality of round holes at the end away from the substrate. The plurality of massage pestles are slidably connected in the plurality of round holes. A magnetic block is installed at the end of the massage pestle near the substrate, and the magnetic block is slidably connected in the round hole. When the magnetic foot plate is magnetically attracted to the substrate, the plurality of magnetic blocks are further attracted, thereby causing the magnetic blocks to detach from the round holes, allowing air to enter from the gap between the massage pestle and the round hole, thereby achieving the purpose of ventilating the patient's feet.

[0007] As a further improvement of the present invention, the preventive component also includes multiple pairs of limiting blocks. A pair of limiting grooves are provided on the inner wall of the circular hole. The multiple pairs of limiting blocks are slidably connected in the corresponding pair of limiting grooves, and the limiting blocks are fixedly connected to the massage pestle. A return spring is fixedly connected between the limiting block and the inner wall of the limiting groove. Through the elastic force of the return spring, after the magnetic block loses its magnetic attraction, the limiting block is pushed to reset the massage pestle, so that the massage pestle expands and squeezes the patient's foot, thereby causing the massage pestle to move repeatedly and massage the patient's foot. At the same time, the limiting block slides along the limiting groove, which can limit the massage pestle and prevent it from falling off.

[0008] As a further improvement of the present invention, the preventive component also includes a heating plate, which is fixedly connected to the end of the magnetic footplate away from the base plate. The heating plate can heat and warm the patient's feet, making the patient more comfortable and promoting blood circulation.

[0009] As a further improvement of the present invention, the massage pestle includes a top rod, which is slidably connected to a circular hole. A liquid storage tank is formed at the end of the top rod near the magnetic block, and the magnetic block is threadedly connected to the inner wall of the liquid storage tank. The liquid storage tank is filled with an auxiliary medicinal liquid. A squeezing plate is slidably connected to the liquid storage tank. A sliding hole is formed at the end of the top rod away from the magnetic block, and the sliding hole communicates with the liquid storage tank. An abutment rod is slidably connected within the sliding hole. A liquid outlet hole is formed in the middle of the abutment rod. An elastic bladder is fixedly connected to the outer end of the abutment rod. The elastic bladder is connected to the outlet hole and is fixedly connected between the squeezing plate and the inner wall of the reservoir. Multiple miniature one-way valves are embedded in the outer end of the elastic bladder. The reservoir is equipped with a squeezing spring, which is located between the squeezing plate and the magnetic block. When the massage pestle is reset, the abutment rod is squeezed by the sole of the foot. At the same time, the abutment rod pushes the squeezing plate to compress the squeezing spring. The elastic bladder is stretched by the force and returns from a flat shape to a bulging shape. The auxiliary medicine is drawn into the elastic bladder from the miniature one-way valve and flows out from the outlet hole to be applied to the sole of the patient's foot.

[0010] As a further improvement of the present invention, the fixing member includes an elastic telescopic rod, which is fixedly connected to the side end of the base plate. A clamp is fixedly connected to the end of the elastic telescopic rod away from the base plate. By stretching the elastic telescopic rod, the clamp is fastened to one side of the hospital bed. Under the rebound force of the elastic telescopic rod, the clamp is pulled to stably clamp a pair of clamps on both sides of the hospital bed.

[0011] As a further improvement of the present invention, the fastener also includes a frosted pad, which is fixedly connected to one end of the clamping plate near the elastic telescopic rod and is located below the elastic telescopic rod. The frosted pad can increase the friction between the clamping plate and the edge of the bed and prevent the clamping plate from falling off.

[0012] As a further improvement of the present invention, an adjustment groove is provided at one end of the substrate near the adjustment plate, and a T-shaped block is slidably connected in the adjustment groove. The T-shaped block is fixedly connected to the adjustment plate. By sliding the T-shaped block along the adjustment groove, the sliding adjustment of the adjustment plate can be guided and limited.

[0013] As a further improvement of the present invention, the upper and lower ends of the T-block are provided with rolling grooves, and rolling balls are rolled in the rolling grooves. The rolling balls abut against the inner wall of the adjustment groove. By the rolling balls abutting against the adjustment groove and rolling when the T-block slides, the friction between the T-block and the adjustment groove can be reduced, thereby improving the smoothness of the position adjustment of the preventive component.

[0014] As a further improvement of the present invention, a pair of rubber pads are embedded at the outer end of the adjusting plate, and the rubber pads abut against the preventive component. The rubber pads can increase the frictional force between the adjusting plate and the preventive component during rotation, so that when the preventive component is reset after rotation, the preventive component and the foot can be slowly reset by means of friction.

[0015] Compared with the prior art, the advantages of this invention are: (1) This scheme uses the intermittent magnetic attraction between the electromagnetic plate and the magnetic foot plate, combined with the rebound effect of the torsion spring, to drive the patient's foot to achieve reciprocating flexion and extension movements, which helps maintain the range of motion of the ankle joint and has a positive effect on reducing the risk of foot drop and assisting in early rehabilitation training.

[0016] (2) In this solution, during the magnetic swinging process of the magnetic foot plate, the massage pestle can form a gap expansion and contraction with the movement of the magnetic block, so that an airflow channel is generated between the sole of the foot and the massage pestle, which helps to improve the local breathability of the sole of the foot, reduce the skin discomfort caused by long-term closed contact, and improve the comfort of use.

[0017] (3) Through the alternating action of magnetic attraction and return spring, the massage pestle can achieve reciprocating extension and retraction, forming intermittent pressure on the corresponding area of ​​the sole of the foot, which helps to relax local soft tissues, promotes blood circulation in the sole of the foot to a certain extent, and relieves the stiffness caused by limb immobilization.

[0018] (4) The massage pestle in this solution is equipped with an auxiliary medicine storage and release structure. During the stretching and squeezing process, the medicine can be slowly discharged and coated on the sole of the foot. Combined with the contact pressure of the sole of the foot, it can achieve uniform coating, which helps the medicine to play an auxiliary role in improving circulation and soothing the skin, and enhances the synergistic effect of nursing and rehabilitation. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a side sectional view of the present invention; Figure 3 This is a side sectional view of a portion of the preventive component of the present invention; Figure 4 This is a partial sectional view of the massage pestle of the present invention; Figure 5 For the present invention Figure 1 Enlarged view of point A in the middle; Figure 6 For the present invention Figure 2 Enlarged view of section B in the middle.

[0020] Explanation of the labels in the diagram: 1. Base plate; 2. Adjustment plate; 3. Preventive component; 31. Magnetic foot plate; 32. Ring; 33. Restraint strap; 34. Massager; 341. Top rod; 342. Squeezing plate; 343. Abutting rod; 344. Elastic bladder; 345. Miniature one-way valve; 346. Compression spring; 35. Magnetic block; 36. Limiting block; 37. Return spring; 38. Heating plate; 4. Electromagnetic plate; 5. Fixing component; 51. Elastic telescopic rod; 52. Clamping plate; 53. Frosted pad; 6. T-block; 7. Ball bearing; 8. Rubber pad. Detailed Implementation

[0021] The technical solution 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, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0022] Example 1:

[0023] Please see Figure 1-6 A foot drop prevention device for use in an emergency intensive care unit includes a base plate 1, an electromagnetic plate 4, and a pair of fixing components 5. The base plate 1 is injection molded from high-strength engineering plastic, featuring light weight, high strength, corrosion resistance, and easy cleaning. It can withstand the pressure of the patient's foot and various forces during device operation, while also facilitating disinfection by medical staff, meeting the hygiene requirements of a medical environment. A pair of adjusting plates 2 are slidably connected to the front end of the base plate 1. The adjusting plates 2 are also made of engineering plastic, with a rectangular cross-section, providing good structural stability. A foot drop prevention component 3 is hinged to the end of the adjusting plate 2 away from the base plate 1, with a stainless steel pin connection at the hinge point to ensure flexible rotation and prevent rusting. The foot drop prevention component 3 includes a magnetic foot plate 31, which is made of a rigid plastic shell with a permanent magnet embedded inside. The permanent magnet is made of neodymium iron boron material, possessing strong magnetic properties and capable of generating sufficient magnetic attraction with the electromagnetic plate 4. The magnetic footplate 31 is hinged to the end of the adjusting plate 2 furthest from the base plate 1. A torsion spring is installed at the hinge point between the adjusting plate 2 and the magnetic footplate 31. The torsion spring is made of stainless steel spring wire, which has good elasticity and fatigue resistance. Its initial state keeps the magnetic footplate 31 at a 90-degree angle with the adjusting plate 2, i.e., the ankle joint is in a neutral position. A collar 32 and a restraint strap 33 are fixedly connected to the end of the magnetic footplate 31 furthest from the base plate 1. The collar 32 is made of elastic rubber material, which can adapt to toes of different sizes. The restraint strap 33 is made of nylon webbing with Velcro at the outer end. The Velcro is made of medical-grade material, which is strong and not easy to fall off. Through the cooperation of the collar 32 and the restraint strap 33, the patient's foot can be firmly fixed on the magnetic footplate 31 to prevent the foot from slipping during exercise.

[0024] The electromagnetic plate 4 is fixedly connected to the end of the base plate 1 near the preventive component 3, and is located on the upper end of the adjustment plate 2. The electromagnetic plate 4 is composed of an iron core made of stacked silicon steel sheets and a coil wound with enameled copper wire. The coil is wrapped with an insulating layer and a waterproof shell, which can effectively prevent liquid from seeping in and causing short circuits. The electromagnetic plate 4 is connected to the control unit and power supply through wires. Its working voltage is a safe voltage and will not cause electric shock to the patient. A pair of fixing components 5 are fixedly connected to the left and right ends of the base plate 1, respectively. The fixing components 5 are used to fix the entire device to the hospital bed. Through the coordinated arrangement of the base plate 1, adjustment plate 2, preventive component 3, electromagnetic plate 4 and fixing components 5, the device can be fixed in the corresponding position on the hospital bed relatively easily. The adjustment plate 2 can adapt to different patient foot spacing within a certain range. The magnetic foot plate 31, under the intermittent magnetic attraction of the electromagnetic plate 4 and the torsion spring, helps to drive the patient's foot to perform reciprocating flexion and extension movements, which has a certain positive effect on reducing the risk of foot drop and assisting early rehabilitation exercises. The setting of the collar 32 and the restraint strap 33 also helps to improve the adaptability of foot fixation.

[0025] The preventative component 3 also includes multiple massage pestles 34, made of medical-grade silicone with a smooth, soft surface that will not damage the patient's foot skin. The magnetic footplate 31 has multiple circular holes at its end away from the base plate 1, evenly distributed in a matrix. The massage pestles 34 are slidably connected within these holes, with their diameters slightly smaller than the holes to ensure free movement. Magnetic blocks 35, made of permanent magnet material, are mounted on the end of each massage pestle 34 closest to the base plate 1. These blocks are slidably connected within the holes, with a diameter larger than the massage pestle 34 to prevent them from slipping out of the holes. By placing multiple massage pestles 34 and magnetic blocks 35 on the magnetic footplate 31, the massage pestles 34 can create gap displacement relative to the holes under the magnetic attraction of the electromagnetic plate 4. This allows air to circulate through the gaps, improving local breathability and reducing the stuffiness and discomfort caused by prolonged contact.

[0026] The preventive component 3 also includes multiple pairs of limiting blocks 36, which are integrally formed with the massage pestle 34 and made of the same silicone material. A pair of symmetrically distributed limiting grooves are formed on the inner wall of the circular hole, extending axially along the hole. The multiple pairs of limiting blocks 36 are slidably connected to their respective pairs of limiting grooves, and are fixedly connected to the massage pestle 34. The cooperation between the limiting blocks 36 and the limiting grooves restricts the sliding stroke of the massage pestle 34, preventing excessive sliding. A return spring 37 is fixedly connected between the limiting blocks 36 and the inner wall of the limiting groove. The return spring 37 is made of stainless steel spring wire, with one end fixedly connected to the limiting block 36 and the other end fixedly connected to the inner wall of the limiting groove. With the cooperation of the limiting block 36, the limiting groove and the return spring 37, the massage pestle 34 can be pushed back to its original position after the magnetic attraction disappears, so that the massage pestle 34 forms a reciprocating extension and retraction motion, which produces intermittent pressure on the sole of the foot, which helps to soothe local soft tissue. The sliding cooperation between the limiting block 36 and the limiting groove can also reduce the possibility of the massage pestle 34 falling off to a certain extent.

[0027] The preventative component 3 also includes a heating plate 38, which is made of a flexible carbon fiber heating film. This heating plate features uniform heating, rapid temperature rise, high thermal efficiency, and a long service life. It also possesses good flexibility, allowing it to fit snugly against the surface of the magnetic footplate 31. The heating plate 38 is fixedly connected to the end of the magnetic footplate 31 furthest from the base plate 1, and its surface is covered with a thermally conductive silicone pad, enabling even heat transfer to the patient's sole. The heating plate 38 is connected to the control unit and power supply via wires, and its operating voltage is also a safe voltage. By adding the heating plate 38 to the magnetic footplate 31, gentle heating of the sole can be provided, helping to improve patient comfort and also providing some assistance in promoting local blood circulation in the sole and lower limbs.

[0028] Example 2:

[0029] The massage pestle 34 includes a top rod 341 made of rigid plastic, which is slidably connected to a circular hole. A liquid reservoir is located at the end of the top rod 341 near the magnetic block 35, for storing auxiliary medication. The magnetic block 35 is threadedly connected to the inner wall of the liquid reservoir, facilitating the addition and replacement of medication. The liquid reservoir is filled with auxiliary medication, and a pressure plate 342, made of rubber, is slidably connected within it, its edges tightly fitting the inner wall of the reservoir to prevent leakage. A sliding hole is located at the end of the top rod 341 away from the magnetic block 35, communicating with the liquid reservoir. An abutment rod 343, made of silicone, is slidably connected within this hole, its outer end being rounded to ensure good contact with the patient's sole. The contact rod 343 has a liquid outlet hole in the middle, extending axially along the contact rod 343. An elastic bladder 344 is fixedly connected to the outer end of the contact rod 343. The elastic bladder 344 is made of medical-grade rubber, possessing good elasticity and sealing properties, and is connected to the liquid outlet hole. The elastic bladder 344 is fixedly connected between the squeezing plate 342 and the inner wall of the storage tank. Multiple miniature one-way valves 345 are embedded in the outer end of the elastic bladder 344. The miniature one-way valves 345 only allow the liquid to flow from the storage tank into the elastic bladder 344, and do not allow the liquid to flow backward. A squeezing spring 346 is installed inside the storage tank. The squeezing spring 346 is made of stainless steel spring wire and is located between the squeezing plate 342 and the magnetic block 35. Through the structural cooperation of the top rod 341, the squeezing plate 342, the abutment rod 343, the elastic bladder 344, the miniature one-way valve 345 and the squeezing spring 346, the auxiliary medicine can be absorbed and slowly coated during the extension and retraction of the massage pestle 34, which helps the medicine to act more evenly on the sole of the foot and improves the synergistic effect of nursing and rehabilitation to a certain extent.

[0030] The fixing component 5 includes an elastic telescopic rod 51, which is made of stainless steel and consists of an inner rod and an outer rod. A compression spring is provided between the inner and outer rods to provide stable telescopic force. The elastic telescopic rod 51 is fixedly connected to the side of the base plate 1. A clamping plate 52 is fixedly connected to the end of the elastic telescopic rod 51 away from the base plate 1. The clamping plate 52 is made of engineering plastic and is L-shaped, which can firmly clamp the edge of the hospital bed. By using the elastic telescopic rod 51 and the clamping plate 52 to form the fixing component 5, the telescopic force of the elastic telescopic rod 51 can be used to adapt to the edge of the hospital bed of different widths, which facilitates quick installation and fixation and helps to improve the stability of the device on the bed.

[0031] The fastener 5 also includes a frosted pad 53, which is made of rubber and has dense abrasive particles on its surface to increase friction. The frosted pad 53 is fixedly connected to the end of the clamp 52 near the elastic telescopic rod 51, and is located below the elastic telescopic rod 51. By setting the frosted pad 53 on the clamp 52, the friction between the clamp 52 and the edge of the bed can be increased to a certain extent, reducing the probability of slippage or detachment during use and further improving the reliability of the fixation.

[0032] An adjustment groove is formed at one end of the base plate 1 near the adjustment plate 2. The adjustment groove extends along the width direction of the base plate 1, and a T-shaped block 6 is slidably connected within the adjustment groove. The T-shaped block 6 is made of engineering plastic and has a T-shaped cross-section that matches the shape of the adjustment groove. The T-shaped block 6 is fixedly connected to the adjustment plate 2. Through the cooperation of the adjustment groove on the base plate 1 and the T-shaped block 6, the sliding direction of the adjustment plate 2 can be guided and limited, which helps to improve the stability of the adjustment plate 2 during movement and facilitates precise adjustment of the position of the preventive component 3.

[0033] Both ends of the T-block 6 are provided with spherical grooves, and ball bearings 7 are rolled within the grooves. The ball bearings 7 are made of stainless steel with a smooth surface and abut against the inner wall of the adjustment groove. By setting the ball bearings 7 on the T-block 6, the frictional resistance between the T-block 6 and the adjustment groove can be reduced when the adjustment plate 2 slides, which helps to make the position adjustment process smoother and reduces the feeling of operation jamming.

[0034] A pair of rubber pads 8 are embedded at the outer end of the adjusting plate 2. The rubber pads 8 are made of wear-resistant rubber and abut against the preventive component 3. By setting the rubber pads 8 on the outside of the adjusting plate 2, the rotational friction between the adjusting plate 2 and the preventive component 3 can be appropriately increased, so that the magnetic foot plate 31 moves more smoothly when the torsion spring returns to its original position, reducing the impact of rapid rebound on the patient's foot and improving the safety of use.

[0035] The control and power supply methods for the electrical components are as follows: Both the electromagnetic plate 4 and the heating plate 38 are uniformly controlled by a control unit. The control unit uses a microcontroller as the core controller, installed inside the base plate 1, and is equipped with a waterproof outer shell. The control unit is equipped with a power switch, a mode selection button, a time adjustment button, and a temperature adjustment button. Medical staff can select different working modes according to the patient's specific condition and adjust the intermittent working time of the electromagnetic plate 4 and the heating temperature of the heating plate 38. The intermittent working mode of the electromagnetic plate 4 includes multiple preset programs, such as being set to power on for 3 seconds and power off for 7 seconds, or power on for 5 seconds and power off for 10 seconds, to achieve different frequencies of ankle flexion and extension movements. The heating temperature of the heating plate 38 is divided into three levels: low, medium, and high, which can meet the needs of different patients. The power supply adopts a dual power supply mode of external DC power supply and built-in rechargeable lithium battery. The external DC power supply is connected to the mains power through a power adapter. The built-in rechargeable lithium battery is a lithium-ion battery with a large capacity, which can maintain normal operation of the device for a period of time in the event of a power outage, ensuring that the patient's rehabilitation training is not interrupted. The control unit also has overcurrent protection, overvoltage protection and overheat protection functions. When the device malfunctions, it can automatically cut off the power supply to ensure the safety of the patient and the equipment.

[0036] It should be noted that the specific installation method, circuit connection method, and control method of the electromagnetic plate 4 and heating plate 38 in this invention are all conventional settings well known to those skilled in the art, and will not be described in detail in this invention.

[0037] Working principle: First, the elastic extension force of the elastic telescopic rod 51 in the fixing component 5 drives the clamping plate 52, which is then locked onto the edges of both sides of the hospital bed. The abrasive pads 53 on the clamping plate 52 increase the friction between it and the edge of the bed, thus stabilizing the base plate 1 at the positions corresponding to the patient's feet on both sides of the bed. Next, the T-shaped block 6 in the adjustment groove of the base plate 1 drives the adjustment plate 2 to slide along the groove. The ball bearings 7 on the upper and lower parts of the T-shaped block 6 convert the sliding friction between the T-shaped block 6 and the adjustment groove into rolling friction, significantly reducing sliding friction resistance and allowing the adjustment plate 2 to move smoothly to a position suitable for the patient's foot spacing. Then, the patient's foot is placed in contact with the magnetic footplate 31 of the preventative component 3. The patient's toes are passed through the loop 32, and the binding strap 33 with Velcro is wrapped around the instep to stably bind and fix the foot to the magnetic footplate 31, ensuring that there is no relative sliding between the foot and the magnetic footplate 31.

[0038] Turn on the power switch on the control unit, select the appropriate working mode and heating temperature according to the patient's condition and tolerance, and the electromagnetic plate 4 will intermittently activate and magnetize according to the preset program. When the electromagnetic plate 4 is energized and generates magnetic force, the magnetic force attracts the magnetic foot plate 31 to overcome the elastic force of the torsion spring at the hinge and rotate it to one side of the base plate 1, thereby driving the patient's ankle joint to complete a passive plantar flexion movement. During this magnetic attraction process, the magnetic block 35 at the bottom of the massage pestle 34 on the magnetic foot plate 31 is simultaneously attracted by the magnetic force of the electromagnetic plate 4, causing the massage pestle 34 to slide outward along the circular hole on the magnetic foot plate 31, creating a gap between the massage pestle 34 and the circular hole. Outside air can circulate through these gaps to the space between the patient's sole and the magnetic foot plate 31, achieving foot ventilation. At the same time, the limiting block 36 slides outward along the limiting groove on the inner wall of the circular hole, compressing the return spring 37 to store its elastic potential energy.

[0039] When the electromagnetic plate 4 is de-energized and the magnetic attraction is released, the elastic potential energy stored in the torsion spring is released. Its rebound force drives the magnetic foot plate 31 to rotate away from the base plate 1, thereby causing the patient's ankle joint to complete a passive dorsiflexion movement. The rubber pad 8 at the outer end of the adjusting plate 2 can increase the rotational friction between the adjusting plate 2 and the magnetic foot plate 31, consuming some of the elastic potential energy and making the reset movement smoother, avoiding the impact of rapid rebound on the patient's foot. At the same time, the elastic potential energy stored in the reset spring 37 is released, pushing the limiting block 36 to slide inward along the limiting groove, thereby driving the massage pestle 34 to reset inward, forming intermittent pressure on the patient's sole and achieving a massage effect.

[0040] When the massage pestle 34 resets, the contact rod 343 first contacts the patient's sole, sliding towards the reservoir under the reaction force of the sole, pushing the compression plate 342 to compress the compression spring 346, causing the elastic bladder 344 to contract. When the electromagnetic plate 4 is activated again, the massage pestle 34 slides outward, the pressure between the contact rod 343 and the sole disappears, and the compression spring 346 pushes the compression plate 342 away from the magnetic block 35, causing the elastic bladder 344 to stretch and bulge back, creating a negative pressure inside the elastic bladder 344. This draws the auxiliary medication from the reservoir into the elastic bladder 344 through the miniature one-way valve 345. When the electromagnetic plate 4 is de-energized again, and the massage pestle 34 resets, the contact rod 343 is again compressed by the sole, causing the elastic bladder 344 to contract again, squeezing out the medication through the outlet hole on the contact rod 343, and slowly applying it to the patient's sole. This process is repeated continuously, allowing the patient's feet to flex and extend repeatedly while simultaneously applying the auxiliary medication.

[0041] In addition, the heating plate 38 on the magnetic footplate 31, under the control of the control unit, gently heats the sole of the foot. The heat is evenly transferred to the patient's sole through the heat-conducting silicone pad, helping to promote local blood circulation. Throughout the process, through the combined action of electromagnetic attraction, torsion spring rebound, spring reset, and mechanical sliding, it not only promotes reciprocating rehabilitation movements of the foot and prevents foot drop, but also achieves the synergistic effects of foot breathability, massage, medicated application, and warmth.

[0042] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and not restrictive.

[0043] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A foot drop prevention device for use in an emergency intensive care unit, characterized in that: include: A substrate (1) has a pair of adjustment plates (2) slidably connected to its front end, and a preventive member (3) is hinged to the end of the adjustment plate (2) away from the substrate (1). The preventive component (3) includes a magnetic foot plate (31), which is hinged to the end of the adjustment plate (2) away from the base plate (1). A torsion spring is installed at the hinge point between the adjustment plate (2) and the magnetic foot plate (31). A collar (32) and a restraint strap (33) are fixedly connected to the end of the magnetic foot plate (31) away from the base plate (1). The outer end of the restraint strap (33) is provided with Velcro. Electromagnetic plate (4), the electromagnetic plate (4) is fixedly connected to the base plate (1) near the end of the preventive component (3), and the electromagnetic plate (4) is located at the upper end of the adjustment plate (2); The fasteners (5) are a pair, and the pair of fasteners (5) are respectively fixedly connected to the left and right ends of the substrate (1).

2. The foot drop prevention device for use in an emergency intensive care unit according to claim 1, characterized in that: The preventive component (3) also includes multiple massage pestles (34). The magnetic foot plate (31) has multiple round holes at the end away from the substrate (1). The multiple massage pestles (34) are slidably connected in the multiple round holes. A magnetic block (35) is installed at the end of the massage pestle (34) close to the substrate (1), and the magnetic block (35) is slidably connected in the round hole.

3. A foot drop prevention device for use in an emergency intensive care unit according to claim 2, characterized in that: The preventive component (3) also includes multiple pairs of limiting blocks (36), and a pair of limiting grooves are provided on the inner wall of the circular hole. The multiple pairs of limiting blocks (36) are slidably connected in the corresponding pair of limiting grooves, and the limiting blocks (36) are fixedly connected to the massage pestle (34). A return spring (37) is fixedly connected between the limiting blocks (36) and the inner wall of the limiting groove.

4. A foot drop prevention device for use in an emergency intensive care unit according to claim 1, characterized in that: The preventive component (3) also includes a heating plate (38), which is fixedly connected to the end of the magnetic foot plate (31) away from the substrate (1).

5. A foot drop prevention device for use in an emergency intensive care unit according to claim 2, characterized in that: The massage pestle (34) includes a push rod (341), which is slidably connected to a circular hole. A liquid storage tank is provided at the end of the push rod (341) near the magnetic block (35), and the magnetic block (35) is threadedly connected to the inner wall of the liquid storage tank. The liquid storage tank is filled with auxiliary medicine. A squeezing plate (342) is slidably connected to the liquid storage tank. A sliding hole is provided at the end of the push rod (341) away from the magnetic block (35), and the sliding hole is connected to the liquid storage tank. An abutment rod (343) is slidably connected to the sliding hole. The contact rod (343) has a liquid outlet hole in the middle. An elastic bladder (344) is fixedly connected to the outer end of the contact rod (343), and the elastic bladder (344) is connected to the liquid outlet hole. The elastic bladder (344) is fixedly connected between the extrusion plate (342) and the inner wall of the storage tank. Multiple miniature one-way valves (345) are embedded in the outer end of the elastic bladder (344). A compression spring (346) is provided in the storage tank, and the compression spring (346) is located between the extrusion plate (342) and the magnetic block (35).

6. A foot drop prevention device for use in an emergency intensive care unit according to claim 1, characterized in that: The fastener (5) includes an elastic telescopic rod (51), which is fixedly connected to the side end of the substrate (1), and a clamp (52) is fixedly connected to the end of the elastic telescopic rod (51) away from the substrate (1).

7. A foot drop prevention device for use in an emergency intensive care unit according to claim 6, characterized in that: The fastener (5) also includes a frosted pad (53), which is fixedly connected to one end of the clamp (52) near the elastic telescopic rod (51) and is located below the elastic telescopic rod (51).

8. A foot drop prevention device for use in an emergency intensive care unit according to claim 1, characterized in that: An adjustment groove is provided at one end of the substrate (1) near the adjustment plate (2), and a T-shaped block (6) is slidably connected in the adjustment groove, and the T-shaped block (6) is fixedly connected to the adjustment plate (2).

9. A foot drop prevention device for use in an emergency intensive care unit according to claim 8, characterized in that: The T-shaped block (6) has rolling grooves at both the top and bottom ends, and rolling balls (7) are connected in the rolling grooves, with the rolling balls (7) abutting against the inner wall of the adjusting groove.

10. A foot drop prevention device for use in an emergency intensive care unit according to claim 1, characterized in that: The outer end of the adjustment plate (2) is inlaid with a pair of rubber pads (8), and the rubber pads (8) abut against the prevention component (3).

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