A five-fingered orthosis for the correction of foot varus

Abstract

The application discloses a foot inversion five-finger correction sock, which comprises a sock body, a finger part at the end of the sock body, a cavity structure at the bottom, a foot side correction band fixed on the upper edge of the sock body and a fixing band connected to the top of the sock body, the cavity structure is 2-3 mm in height, the cavity structure is filled with silica gel particles, and the diameter of the silica gel particles is 3 mm. The 3 mm can meet the massage demand, slight patients can select the correction sock with the cavity height of 3 mm, and severe patients can select the correction sock with the cavity height of 2 mm. The ergonomic design and the rehabilitation medical principle are combined, the foot inversion deformity is improved through physical correction and acupoint stimulation, and the movement function is recovered. The five-finger correction sock mainly aims at two core pathological mechanisms of the neuromuscular imbalance and the spasm-crimp vicious cycle of the foot inversion after the stroke, emphasizes the functional integration and the user adaptability of the design, solves the problems of poor comfort, insufficient air permeability and inconvenience in daily wearing of the existing appliances and can be worn for a long time.

Description

Technical Field

[0001] This application relates to the field of medical assistive devices, and more particularly to a five-toe corrective sock for inversion of the foot. Background Technology

[0002] Foot inversion is one of the most common motor dysfunctions following stroke. Stroke can lead to central nervous system damage, resulting in injury to the motor cortex or corticospinal tract of the brain, causing contralateral limb motor control disorders and disrupting the coordination of foot muscles, leading to muscle imbalances: the peroneal muscles (responsible for foot eversion) become weak due to reduced nerve innervation, while the tibialis anterior muscles (responsible for foot dorsiflexion and inversion) become overactive due to spastic paralysis, resulting in a "foot inversion-drop" deformity. After upper motor neuron damage, spinal reflexes become hyperactive, and the tension of the foot flexor muscles (such as the tibialis posterior) increases, forcing the foot to continuously invert, forming a spastic abnormal movement pattern. Due to decreased balance, patients tend to increase the support area by inverting the foot when walking as a compensatory mechanism, leading to long-term adaptive deformities. Prolonged immobilization or abnormal posture can cause Achilles tendon contracture and limited subtalar joint movement, further solidifying the foot inversion morphology and severely affecting lower limb motor function.

[0003] Currently, foot inversion correction is mainly achieved through rigid orthotics or custom insoles, such as foot fixation braces. These devices forcibly adjust foot posture through rigid structures, but rigid structures suffer from poor comfort, insufficient breathability, and inconvenience in daily wear. Furthermore, traditional orthotics lack dynamic adaptability, failing to simultaneously address correction and restore foot sensation, or simply correcting the strength of the dorsum of the foot muscles without providing stability protection for the ankle joint. Based on these issues, a novel five-toe inversion corrective sock is proposed. This sock overcomes the limitations of traditional orthotics through synergistic intervention of biomechanical correction and neurosensory stimulation. Utility Model Content

[0004] This application provides a five-toe corrective sock for foot inversion, which combines ergonomic design and rehabilitation medicine principles. It aims to improve foot inversion deformity and restore motor function through physical correction and acupoint stimulation. It mainly targets the two core pathological mechanisms of neuromuscular imbalance and spasticity-contraction vicious cycle of foot inversion after stroke. It emphasizes the functional integration (correction + rehabilitation) and user adaptability (dynamic adjustment + comfortable wearing) of the design, and solves the problems of poor comfort, insufficient breathability and inconvenience of daily wearing of existing devices. It can be worn for a long time.

[0005] This application provides a five-finger orthopedic sock for inversion foot, comprising: a sock body, the sock body including finger portions at the ends, a cavity structure at the bottom, a foot-side orthopedic strap fixed to the upper edge of the sock body, and a fixing strap connected to the top of the sock leg; The toe area is a flexible five-toe pocket, which can hold all five toes; The bottom of the sock has a hollow structure with a height difference of 2-3mm. The cavity is filled with silicone particles with a diameter of 3mm. 3mm can meet the massage needs. Patients with mild symptoms can choose corrective socks with a cavity height of 3mm for greater comfort, while patients with severe symptoms can choose corrective socks with a height of 2mm for better correction. The foot side correction band, which is attached to the upper edge of the sock, is fixed at the fifth toe at its starting end. It is made of highly elastic nylon fiber and has a double-layer structure. The end of the foot side correction band is equipped with Velcro A-side. The fixing strap is made of double-layer pressure braided strap, in a loop shape, with multiple support strips inside, and the surface of the fixing strap has Velcro B side.

[0006] Furthermore, the inner wall of each of the five toe pockets on the foot is provided with an anti-slip texture, which is a raised wavy stripe with a stripe width of 1.5mm.

[0007] Furthermore, the spaces between the silicone particles placed in the cavity structure are filled with a medical-grade lubricant, specifically silicone oil.

[0008] Furthermore, the length of the foot correction band is 20cm, and the elasticity of the band can meet the stretching requirements.

[0009] Furthermore, the foot-side corrective band is stretchable, extending from the fifth toe and the radial side of the metatarsal bone to the medial side of the arch, and connecting to the dorsal and lateral sides of the remaining toes, and is finally fixed by the A and B sides of the Velcro.

[0010] Furthermore, the width of the fixation strap is 6cm, and the entire outer surface of the fixation strap is the B side of the Velcro, which can accommodate individual differences within the same size and meet the needs of different patients.

[0011] Furthermore, the additional support strips inside the fixing strap are flexible polyester fiber support strips with a diameter of 1.2mm and a spacing of 3-5mm between adjacent support strips, which can better provide support.

[0012] As can be seen from the above technical solution, this application provides a five-toe inversion corrective sock, including a five-toe sock body. The sock body is made of breathable and antibacterial cotton fabric (such as bamboo fiber blend). A hollow structure with a thickness of 2-3mm is set in the sole area, filled with silicone with a diameter of 3mm. Through a multi-directional elastic correction system made of double-layer pressure knitting of high-elastic nylon fiber (such as Lycra), from the fifth toe and the radial side of the metatarsal bone to the medial side of the arch, and connecting to the dorsum and lateral sides of the other toes, a centripetal force is formed to guide the inversion of the foot back to its original position. A fixing strap is connected to the end of the sock, which adopts a double-layer pressure knitting strap, extending from the radial side of the heel to the middle of the calf. The sock body adopts a ring reinforcement design and adds polyester fiber support strips to enhance ankle joint stability, while promoting venous return and preventing deep vein thrombosis in the lower extremities.

[0013] The corrective socks are designed with international standard shoe sizes (such as European sizes 36-46) in 0.5-size increments to cover different foot lengths and circumferences. Each size of the corrective band has pre-set differentiated elasticity parameters (such as 5-8N traction for size S and 8-10N for size M) to ensure that the corrective force is precisely matched with the foot size. A bandage is included to wrap and restrain key pressure points (such as the inner arch of the foot and the ankle). The outer surface of the calf fixation band retains a Velcro micro-adjustment structure to accommodate individual differences within the same size (such as instep height and degree of muscle spasm) and meet the needs of different patients.

[0014] In summary, the beneficial effects of this application are as follows: (1) Composite correction structure: For the first time, the five-finger sock design, acupoint massage and multi-directional elastic bandage are combined to achieve the dual functions of correction and rehabilitation.

[0015] (2) Dynamic adaptability: Through the adjustment of elastic materials and Velcro, it provides personalized correction force, which is superior to traditional rigid devices.

[0016] (3) Material optimization: Silicone massage particles combine comfort and durability; Lycra fiber corrective belts reduce skin friction while ensuring tension.

[0017] (4) Clinical advantages: This design can reduce the inversion angle of the foot, is easy to wear, and significantly improves comfort compared with traditional orthotics. Attached Figure Description

[0018] To more clearly illustrate the technical solution of this application, the accompanying drawings used in the implementation examples will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained from these drawings without any creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of this application.

[0020] Figure 2 This is a structural diagram of the corrective band.

[0021] Figure 3 This is a diagram showing the direction of the medial foot correction band.

[0022] Figure 4 This is a diagram showing the direction of the lateral foot correction band and the design of the fixation band.

[0023] Figure 5 This is a structural diagram of the hook and loop fastener B side of the outer surface of the fastener.

[0024] Figure 6 This is a diagram showing the direction of the foot dorsiflexion band.

[0025] Figure 7 This is a diagram showing the direction of the foot orthotic band.

[0026] Figure 8 This is a diagram of the foot structure when the cavity structure is 3mm high.

[0027] Figure 9 This is a diagram of the foot structure when the cavity structure is 2mm high.

[0028] Illustration: Among them, 1-sock body, 2-silicone particles, 3-five-finger pockets, 4-corrective belt, 5-hollow structure, 6-fixation belt, 7-hook and loop fastener A side, 8-hook and loop fastener B side. Detailed Implementation

[0029] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0030] Example 1: As can be seen from the above technical solutions, see [link / reference]. Figures 1-8 ; This embodiment provides a five-toe corrective sock for foot inversion, an innovative product developed by combining ergonomic design and rehabilitation medicine principles to address the two core pathological mechanisms of neuromuscular imbalance and the vicious cycle of spasticity-contraction in patients with foot inversion after stroke. It aims to improve foot inversion deformity and restore motor function through physical correction and acupoint stimulation. It emphasizes the functional integration and user adaptability of the design and can be worn for a long time to solve many problems of existing devices.

[0031] This five-finger orthopedic sock for inversion foot mainly consists of the sock body 1, and the design of each part of the sock body 1 is closely based on the needs of correction and rehabilitation. 1-Sock body, 2-Silicone particles, 3-Five-finger pockets, 4-Corrective band, 5-Cavity structure, 6-Fixing band, 7-Hook and loop fastener A-side, 8-Hook and loop fastener B-side.

[0032] The toe area of ​​the sock body 1 features an elastic five-toe pocket design 3. This design effectively wraps around the five toes, providing independent support and positioning for each toe. The inner wall of each toe pocket is equipped with an anti-slip texture, consisting of raised, wavy stripes 1.5mm wide. This anti-slip texture effectively increases friction between the toe pocket and the toes during wear, preventing the toes from sliding inside the pockets and ensuring the corrective sock functions stably during walking or exercise, thus guaranteeing its corrective effect.

[0033] The bottom of the sock body 1 has a hollow structure 5 with a height difference of 2mm, filled with silicone particles 2 with a diameter of 3mm. Medical-grade lubricant is also filled between the silicone particles 2. When the patient walks, the foot applies pressure to the hollow structure. The silicone particles 2, aided by the medical-grade lubricant, can better flow and disperse this pressure, cushioning the foot and reducing the impact of walking. Furthermore, the stimulation of different reflex zones on the sole of the foot by the silicone particles 2 promotes blood circulation and stimulates sensory nerves, helping to improve inversion symptoms. The diameter of the silicone particles 2 is larger than the height of the hollow structure 5, resulting in stronger stimulation of different reflex zones on the sole of the foot, primarily targeting patients with more severe symptoms and providing better corrective effects. However, the protruding silicone particles 2 may lead to less comfort.

[0034] A foot-side correction band 4 is fixed to the upper edge of the sock body 1. The starting end of the foot-side correction band 4 is fixed at the fifth toe. It is made of highly elastic nylon fiber with a double-layer structure and is 20cm in length. This highly elastic material and double-layer structure give the foot-side correction band 4 good tensile strength and resilience, allowing for dynamic adjustment according to the patient's foot condition. The end of the foot-side correction band 4 is equipped with Velcro A side 7, which is stretchable. Starting from the fifth toe, it wraps around the radial side of the metatarsal bone, the medial side of the arch, and connects to the dorsal and lateral sides of the remaining toes. Finally, it is fixed by Velcro B side 8 on the surface of the fixation band, forming a centripetal force to guide the inversion of the foot back to its original position, effectively improving foot inversion deformity.

[0035] The top of the sock is connected to a support strap 6, which is made of double-layered pressure-woven tape, looped in shape, and 6cm wide. This pressure-woven tape provides appropriate pressure to enhance ankle joint stability. Multiple flexible polyester fiber support strips are added inside the support strap 6. The support strips are 1.2mm in diameter, and the spacing between adjacent support strips is 3-5mm. The polyester fiber support strips ensure that the support strap has a certain degree of rigidity while also being flexible, making it easy for patients to wear and adjust. At the same time, the pressure design of the support strap 6 helps promote venous return in the lower limbs, preventing lower limb deep vein thrombosis, further demonstrating the product's rehabilitation function.

[0036] In practical use, the patient slips their foot onto the toe area of ​​the corrective sock, adjusting the position of each toe within the toe pocket to ensure full contact between the anti-slip texture and the toes. Then, the foot-side corrective strap is stretched along a path from the fifth toe, the radial side of the metatarsal bone to the medial arch, connecting to the back of the remaining toes and wrapping around the side of the foot. It is then secured in place using Velcro A (side 7) and Velcro B (side 8) to provide appropriate corrective tension. Finally, the securing strap 6 at the top of the sock is wrapped around the middle of the calf, adjusted to a comfortable and supportive position, and secured with Velcro to complete the wearing of the corrective sock. Patients can wear these corrective socks for extended periods during daily activities. During walking, the various parts of the corrective sock work synergistically to achieve physical correction and acupoint stimulation, gradually improving foot inversion symptoms and restoring motor function.

[0037] Example 2: As can be seen from the above technical solutions, see [link / reference]. Figures 1-7 , Figure 9 ; The five-toe orthotic stockings for foot inversion described in this embodiment are an innovative rehabilitation device specifically designed for patients with foot inversion after stroke. Based on the principles of ergonomics and rehabilitation medicine, it aims to overcome the limitations of existing orthotic devices in terms of comfort, breathability, and ease of daily wear. Through functional integration and user-adaptive design, it provides patients with a solution that can be worn long-term.

[0038] The core structure of this five-toe inversion corrective sock is the sock body 1, and each part of the sock body 1 is designed to fit closely to the needs of correction and rehabilitation.

[0039] The toe area of ​​the sock body 1 is designed as an elastic five-toe pocket 3, which can precisely wrap around the five toes and provide independent support space for each toe. The inner wall of each toe pocket is equipped with raised wavy stripes with an anti-slip texture, with a stripe width of 1.5mm. When the patient walks or moves, the anti-slip texture can effectively prevent the toes from sliding inside the toe pockets, ensuring that the orthopedic sock fits the foot closely and guaranteeing the stability of the corrective effect.

[0040] The hollow structure 5 at the bottom of the sock body 1 has a height difference of 3mm, filled with 3mm diameter silicone particles 2, with medical-grade lubricant filling the spaces between the silicone particles 2. When the patient walks, the foot applies pressure to the hollow structure, and the silicone particles 2 can flow flexibly under the action of the lubricant, evenly distributing the pressure. This design not only cushions the sole of the foot, reducing the impact of walking, but also promotes blood circulation in the foot and stimulates nerve function recovery through the stimulation of the reflex zones on the sole of the foot by the silicone particles 2, thus helping to improve the symptoms of foot inversion. The diameter of the silicone particles 2 is the same as the height of the hollow structure 5, but the patient can still achieve the corrective purpose by squeezing the hollow structure 5 when standing. It is a simple treatment for patients with mild symptoms and can be worn for a long time. Compared with a hollow height of 2mm, it is more comfortable, but the corrective effect is poor.

[0041] The foot-side correction band 4, fixed to the upper edge of the sock body 1, starts at the fifth toe and is made of high-elasticity nylon fiber with a double-layer structure, with a length of 20cm. This material and structure give the foot-side correction band 4 good elasticity and durability, and can adapt to different patients' foot sizes and correction needs. The end of the foot-side correction band 4 is provided with Velcro A side 7. When in use, the foot-side correction band 4 starts from the fifth toe, runs along the radial side of the metatarsal bone, the medial side of the arch, and connects to the back of the other toes, and is stretched around the side. Finally, it is fixed by Velcro B side 8 on the surface of the fixing band, forming a centripetal force to guide the inversion of the foot back to its original position, effectively improving foot inversion deformity.

[0042] The fixation strap 6, connected to the top of the sock, is made of double-layered pressure-woven strap, looped in shape and 6cm wide. This pressure-woven strap provides moderate pressure, enhancing ankle joint stability and preventing excessive inversion or eversion during movement. Multiple flexible polyester fiber support strips, 1.2mm in diameter, are added inside the fixation strap 6, with a spacing of 3-5mm between adjacent strips. These polyester fiber support strips ensure the fixation strap 6's rigidity while maintaining a degree of flexibility, facilitating patient wearing and adjustment. Simultaneously, the pressure design of the fixation strap helps promote venous return in the lower extremities, preventing deep vein thrombosis and demonstrating the product's advantages in rehabilitation.

[0043] When putting on these corrective socks, patients should first insert their feet into the toe area of ​​the sock, adjusting the position of their toes within the toe pockets to ensure full contact between the anti-slip texture and their toes for a non-slip effect. Next, stretch the foot-side corrective straps along the designated path and secure them in place using Velcro straps A and B to provide appropriate corrective tension. Finally, wrap the securing strap at the top of the sock around the middle of the calf, adjusting it to a comfortable and supportive position, and secure it with Velcro. Patients can wear these corrective socks for extended periods during daily activities. The various parts of the sock work together to provide physical correction and acupressure stimulation during walking, gradually improving foot inversion symptoms, restoring motor function, and enhancing quality of life.

[0044] After wearing, the foot massage particles stimulate acupoints through walking pressure, promoting blood circulation; the corrective belt dynamically applies multi-directional tension during the gait cycle, gradually correcting the inversion angle of the foot; the ankle joint reinforcement belt restricts excessive eversion, reducing the risk of sports injuries.

[0045] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope of this application is indicated by the claims.

[0046] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The embodiments of this application described above do not constitute a limitation on the scope of protection of this application.

Claims

1. A type of five-toe corrective sock for inversion of the foot, comprising: The sock body is characterized in that it includes finger-shaped ends, a hollow structure at the bottom, a foot-side correction band fixed to the upper edge of the sock body, and a fixing band connected to the top of the sock leg. The finger section is an elastic five-toed pouch for the foot; The bottom of the sock body is a hollow structure with a vertical height difference of 2-3mm. The hollow structure is filled with silicone particles with a diameter of 3mm. The foot-side correction band, which is attached to the upper edge of the sock, is fixed at the fifth toe at its starting end. It is made of highly elastic nylon fiber and has a double-layer structure. The end of the foot-side correction band is provided with Velcro A side. The fixing strap is made of double-layer pressure braided strap, is in the shape of a ring, and has multiple support strips inside. The surface of the fixing strap is provided with Velcro B side.

2. The five-toe corrective sock for inversion of the foot according to claim 1, characterized in that, Each of the five toe pockets on the foot is provided with an anti-slip texture on its inner wall. The anti-slip texture is a raised wavy stripe with a stripe width of 1.5mm.

3. The five-toe corrective sock for inversion of the foot according to claim 1, characterized in that, The cavity structure contains silicone particles filled with medical-grade lubricant.

4. The five-toe corrective sock for inversion of the foot according to claim 1, characterized in that, The length of the foot correction band is 20cm.

5. The five-toe corrective sock for inversion of the foot according to claim 1, characterized in that, The foot-side correction band is stretchable, extending from the fifth toe and the radial side of the metatarsal bone to the medial side of the arch, and connecting to the dorsal and lateral sides of the remaining toes, and is finally fixed by the A and B sides of the Velcro.

6. The five-toe corrective sock for inversion of the foot according to claim 1, characterized in that, The width of the fixing strap is 6cm.

7. The five-toe corrective sock for inversion of the foot according to claim 1, characterized in that, The additional support strips inside the fixing belt are flexible polyester fiber support strips with a diameter of 1.2mm and a spacing of 3-5mm between adjacent support strips.

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