Foot assistive device capable of adjusting heel bearing pressure

Abstract

The utility model provides a foot assistive device capable of adjusting heel bearing pressure, which comprises a foot pad and a heel pad, and the heel pad is connected with the bottom of the foot pad; the foot pad comprises a front foot part, a middle foot part and a rear foot part, a hole is formed in the bottom of the rear foot part, a recess is formed in the heel pad, and the hole corresponds to the recess. The foot assistive device capable of adjusting heel pressure bearing focuses on a heel shaft, three arches surrounding a foot and the principle of mechanical change when the foot walks, the pressure borne by the heel when the heel falls to the ground is rapidly transferred, the front foot part, the middle foot part and the rear foot part of the foot assistive device are combined in a soft and hard mode through different structures through a three-dimensional design 3D printing method, and therefore the foot assistive device with the adjustable heel pressure bearing function is obtained. And under the condition of conforming to foot mechanics and gait cycle principles, the heel pressure is effectively adjusted, so that the purpose of relieving heel pain is achieved.

Description

Technical Field

[0001] The utility model belongs to the field of foot aids, and in particular relates to a foot aid capable of adjusting the heel pressure bearing. Background Art

[0002] Most of the current market common decompression foot aids reduce pressure through the performance of EVA materials or only fix and support the sole structure through a simple medial foot arch. Such common designs can only support unilaterally, while the foot structure is three-dimensional, with a transverse arch, a medial foot arch, and a lateral foot arch, forming a "three-legged stand" structure. Moreover, during the walking cycle, the foot acts as a fulcrum, that is, the role of an axis, to ensure the smooth forward movement of the body. The detailed classification of the foot axis includes: the heel axis, the ankle axis, the forefoot axis, and the toe axis. Simple material decompression and unilateral support cannot well change the rolling forward of the foot axis. Summary of the Invention

[0003] In view of this, the utility model aims to overcome the defects in the prior art and proposes a foot aid capable of adjusting the heel pressure bearing.

[0004] To achieve the above object, the technical solution of the utility model is realized as follows:

[0005] A foot aid capable of adjusting the heel pressure bearing, comprising a foot pad and a heel pad, wherein the heel pad is connected to the bottom of the foot pad;

[0006] The foot pad includes a forefoot part, a midfoot part, and a rearfoot part. A hole is provided at the bottom of the rearfoot part, and a depression is provided on the heel pad. The hole corresponds to the depression;

[0007] The inner diameter of the hole is greater than or equal to the inner diameter of the depression; the inner diameter of the hole is 3-9 cm; the inner diameter of the depression is 3-5 cm.

[0008] Through the cooperation of the hole and the depression, the instantaneous pressure when the heel lands is transferred to the periphery of the heel, effectively preventing the pain points of patients with bone spurs and osteochondritis from touching the ground when walking; moreover, the depression is used to increase the distance between the heel and the ground when the heel axis rolls. When used in combination with the hole, the depth is increased. For some patients who need to increase the decompression of soft materials, soft materials can also be added here.

[0009] Furthermore, a buffer protrusion is provided at the edge of the hole; a plurality of support pads are evenly provided on the outer side of the buffer protrusion. The buffer protrusion and the depression cooperate to increase the overall depth, further playing a role in buffering and decompressing. The surface of the support pad is an arc structure, located slightly away from the edge of the hole, and its hardness is slightly greater than that of the foot pad, playing a certain supporting role for the heel, and at the same time transferring the instantaneous pressure when the heel lands to the periphery of the heel.

[0010] Further, the middle foot part is located between the front foot part and the rear foot part. At both upper ends of the middle foot part, a metatarsal part and a cuboid part are respectively arranged. An inner arch part is arranged on the upper inner side of the middle foot part. The inner arch part supports the inner arch. The height of the inner arch part is 25 - 30 mm.

[0011] Further, the height of the cuboid part is 2 - 4 mm; the metatarsal part has an elliptical structure, the height of the metatarsal part is 3 - 6 mm, and the included angle between the bottom surface of the metatarsal part and the bottom surface of the foot pad is 40 - 45 degrees. The cuboid part forms the outer arch; an included angle is generated between the metatarsal part and the foot pad, which plays a role in supporting the transverse arch.

[0012] Further, an anti - wear layer is arranged at the bottom of the front foot part, and a twill structure is arranged on the surface of the anti - wear layer. The twill structure is softer than other structures, which can reduce the loss of bending of the front foot part when the front foot pedals away from the foot assistive device, and increase the durability of the foot assistive device.

[0013] Further, anti - torsion layers are arranged at the bottoms of both the middle foot part and the rear foot part, and a hexagonal structure is arranged on the surface of the anti - torsion layer. It can increase the hardness of the middle foot part and the rear foot part, and enhance the anti - torsion efficiency of the foot assistive device.

[0014] Further, a coding area is arranged at the bottom of the middle foot part. Identity recognition information such as the patient's outpatient number can be encoded, so as to facilitate identification during regular maintenance and inspection of the foot assistive device.

[0015] Further, a buffer layer is arranged at the bottom of the heel pad, and a diamond - shaped pattern structure is arranged at the bottom of the buffer layer; the thickness of the heel pad is 2 - 6 mm. It raises the heel, reduces the stretching distance of the Achilles tendon, and speeds up the heel - off speed. The diamond - shaped pattern structure is of moderate hardness. The pressure of the heel landing on the ankle is several times that of the front foot and the middle foot. The structure of moderate hardness can support the heel pressure without being too hard, and has high comfort.

[0016] Compared with the prior art, the present utility model has the following advantages:

[0017] The foot assistive device with adjustable heel bearing pressure of the present utility model focuses on the heel axis, surrounds the three arches of the foot, and the principle of mechanical changes of the foot during walking. It quickly transfers the pressure borne by the heel when landing. By means of 3D printing with three - dimensional design, the front foot part, the middle foot, and the rear foot part of the foot pad are combined with different structures of soft and hard. Under the principle of conforming to foot mechanics and gait cycle, it effectively adjusts the heel pressure, so as to achieve the purpose of relieving heel pain.

[0018] The foot assist device for adjusting heel pressure in the present utility model transfers the instantaneous pressure when the heel touches the ground to the periphery of the heel through the cooperation of holes and depressions, which can effectively prevent the painful areas of patients with bone spurs and epiphysitis from touching the ground when walking. Moreover, the depression is used to increase the distance between the heel and the ground when the heel axis rolls. When used in combination with the holes, the depth of the depression is deepened. For some patients who need to add soft materials for decompression, soft materials can also be added here. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings constituting a part of the present utility model are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0020] Figure 1 is a schematic diagram of the foot assist device for adjusting heel pressure according to Embodiment 1 of the present utility model;

[0021] Figure 2 is a schematic diagram of the foot pad according to Embodiment 1 of the present utility model;

[0022] Figure 3 is a schematic diagram of the hole according to Embodiment 1 of the present utility model;

[0023] Figure 4 is a top perspective view of the foot assist device according to Embodiment 1 of the present utility model;

[0024] Figure 5 is a bottom perspective view of the foot assist device according to Embodiment 1 of the present utility model;

[0025] Figure 6 is a static analysis diagram of Embodiment 1 and Comparative Example 1 of the present utility model.

[0026] Description of the reference numerals in the drawings:

[0027] 1, foot pad; 2, heel pad; 11, front foot part; 12, midfoot; 13, rear foot part; 14, cuboid part; 15, metatarsal part; 16, medial arch part; 17, coding area; 111, anti-wear layer; 121, anti-twist layer; 131, hole; 132, buffer protrusion; 133, support pad; 21, depression; 22, buffer layer. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other.

[0029] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more.

[0030] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "mounted", "connected", "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood through specific circumstances.

[0031] The present utility model will be described in detail below with reference to the drawings and in conjunction with embodiments.

[0032] Embodiment 1

[0033] As Figures 1-5As shown in the figure, an orthotic device for adjusting heel pressure includes a foot pad 1 and a heel pad 2. The heel pad 2 is connected to the bottom of the foot pad 1. The foot pad 1 includes a front foot part 11, a midfoot part 12, and a rear foot part 13. A hole 131 is provided at the bottom of the rear foot part 13, and a depression 21 is provided on the heel pad 2. The hole 131 corresponds to the depression 21. The inner diameter of the hole 131 is 8 cm; the inner diameter of the depression 21 is 5 cm. A buffer protrusion 132 is provided at the edge of the hole 131; a number of support pads 133 are evenly provided on the outer side of the buffer protrusion 132. The cooperation of the buffer protrusion 132 and the depression 21 increases the overall depth and further plays a role in buffering and decompressing. Through the cooperation of the hole 131 and the depression 21, the instantaneous pressure when the heel touches the ground is transferred to the periphery of the heel, effectively preventing the painful area of patients with bone spurs and osteochondritis from touching the ground when walking; moreover, the depression 21 is used to increase the distance between the heel and the ground when the heel axis rolls. When used in combination with the hole 131, the depth is increased. For some patients who need to add soft materials for decompression, soft materials can also be added here.

[0034] The midfoot part 12 is located between the front foot part 11 and the rear foot part 13. At both ends above the midfoot part 12, a metatarsal part 15 and a cuboid part 14 are respectively provided. An inner arch part 16 is provided on the inner side above the midfoot part 12. The inner arch part 16 supports the inner arch. The height of the inner arch part 16 is 30 mm.

[0035] The height of the cuboid part 14 is 4 mm; the metatarsal part 14 has an elliptical structure, the height of the metatarsal part 15 is 4 mm, and the included angle between the bottom surface of the metatarsal part 15 and the bottom surface of the foot pad 1 is 45 degrees. The cuboid part 14 forms the outer arch; the included angle between the metatarsal part 15 and the foot pad 1 plays a role in supporting the transverse arch.

[0036] An anti-wear layer 111 is provided at the bottom of the front foot part 11, and a twill structure is provided on the surface of the anti-wear layer 111. The twill structure is softer than other structures, which can reduce the loss of bending of the front foot part 11 of the orthotic device when the front foot pushes off, and increase the durability of the orthotic device. Anti-twist layers 121 are provided at the bottoms of the midfoot part 12 and the rear foot part 13, and a hexagonal structure is provided on the surface of the anti-twist layer 121. It can increase the hardness of the midfoot part 12 and the rear foot part 13 and enhance the anti-twist efficiency of the orthotic device.

[0037] A coding area 17 is provided at the bottom of the midfoot part 12. Identity identification information such as the patient's outpatient number can be encoded, so as to facilitate identification during regular maintenance of the orthotic device.

[0038] A buffer layer 22 is provided at the bottom of the heel pad 2, and a rhomboid pattern structure is provided at the bottom of the buffer layer 22; the thickness of the heel pad 2 is 3 millimeters. It elevates the heel, reduces the stretching distance of the Achilles tendon, and speeds up the heel push-off speed. The rhomboid pattern structure is moderately hard and soft. The pressure of the heel landing on the ground on the ankle joint is several times that of the forefoot and midfoot 12. The moderately hard and soft structure can support the heel pressure without being too hard, providing high comfort.

[0039] Comparative Example 1

[0040] A foot assistive device includes a foot pad, an upper heel pad, and a lower heel pad. The upper heel pad and the lower heel pad are respectively located above and below the heel of the foot pad. The foot assistive devices of Example 1 and Comparative Example 1 were subjected to pressure detection, and the results are shown in Table 1 and Figure 6 as shown. The redder the area in the pressure map, the greater the pressure. Through the cooperation of the holes and depressions, the pressure in the middle of the heel significantly decreases, and the pressure is concentrated on the edge part of the heel. The left heel load is 33, and the right heel load is only 18. It can be seen that the effects of the foot assistive device in Comparative Example 1 and the foot assistive device in Example 1 are very different.

[0041] Table 1 Data Sheet

[0042]

[0043]

[0044] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A foot support device capable of adjusting heel pressure, characterized in that: It comprises a foot pad and a heel pad, wherein the heel pad is connected to the bottom of the foot pad; The foot pad includes a front foot portion, a mid foot portion, and a rear foot portion, the bottom of the rear foot portion is provided with a hole, the heel pad is provided with a depression, and the hole corresponds to the depression; The inner diameter of the hole is greater than or equal to the inner diameter of the depression; the inner diameter of the hole is 3-9 cm; the inner diameter of the depression is 3-5 cm.

2. The foot support with adjustable heel pressure according to claim 1, characterized in that: A buffer protrusion is arranged at the edge of the hole; and a plurality of supporting pads are evenly arranged on the outer side of the buffer protrusion.

3. The foot support device with adjustable heel pressure according to claim 1, characterized in that: The midfoot portion is located between the forefoot portion and the hindfoot portion, the upper two ends of the midfoot portion are respectively provided with a metatarsal portion and a cuboid portion, and the upper inner side of the midfoot portion is provided with a medial arch portion.

4. The foot support device with adjustable heel pressure according to claim 3, characterized in that: The height of the cuboid part is 2-4 mm; the metatarsal part is an elliptical structure, the height of the metatarsal part is 3-6 mm, and the angle between the bottom surface of the metatarsal part and the bottom surface of the foot pad is 40-45 degrees.

5. The foot support device with adjustable heel pressure according to claim 1, characterized in that: The bottom of the forefoot portion is provided with an anti-wear layer, and the surface of the anti-wear layer is provided with a twill structure.

6. The foot support device with adjustable heel pressure according to claim 1, characterized in that: The bottoms of the midfoot and the rearfoot are both provided with anti-torsion layers, and the surfaces of the anti-torsion layers are provided with hexagonal structures.

7. The foot support device with adjustable heel pressure according to claim 1, characterized in that: The bottom of the midfoot portion is provided with a coding area.

8. The foot support device with adjustable heel pressure according to claim 1, characterized in that: The bottom of the heel pad is provided with a buffer layer, and the bottom of the buffer layer is provided with a prismatic structure; the thickness of the heel pad is 2-6 mm.

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