3D printing orthopedic insole with gait adjusting function

By designing 3D printed orthopedic insoles with support and guide mechanisms, the shortcomings of existing orthopedic insoles in terms of pigeon-toed feet, flat feet and ankle stability are solved, and effective correction of pigeon-toed feet, flat feet and ankle inversion or ankle eversion is achieved, providing stable support and comfortable correction effects.

CN223311293UActive Publication Date: 2025-09-09FOURTH MILITARY MEDICAL UNIVERSITY
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Patent Information

Application Number
CN202422196747.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-09
Publication Date
2025-09-09
Estimated Expiration
2034-09-09

AI Technical Summary

Technical Problem

Existing orthopedic insoles have deficiencies in correcting pigeon-toed foot posture, supporting flat feet, and stabilizing ankle joints, and are difficult to effectively correct pigeon-toed feet, flat feet, and ankle inversion or ankle valgus problems.

Method used

A 3D printed orthopedic insole was designed, which includes a support mechanism and a guide mechanism. The support mechanism includes an inward-facing toe correction component, a flat foot correction component, and an ankle joint correction component. Through structures such as positioning grooves, springs, correction blocks, and slides, it provides targeted correction force and support. Combined with a flexible base layer and Velcro connection method, it ensures stability and comfort.

Benefits of technology

It effectively corrects pigeon-toed feet, flat feet, and ankle inversion or ankle valgus, provides stable support and comfortable correction effects, and improves the correction effect of orthopedic insoles and the patient's experience.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of orthopedic insoles, and discloses a 3D (three-dimensional) printing orthopedic insole with a gait adjusting function, which comprises an insole body, a support mechanism and a guide mechanism, wherein the supporting mechanism comprises an inner eight correction assembly arranged at the upper end of the arch side of the gait guide layer and a flatfoot correction assembly arranged at the middle end of the arch side of the gait guide layer; the guide mechanism comprises an ankle joint correction assembly arranged at the lower end of the gait guide layer; according to the 3D printing orthopedic insole with the gait adjusting function, the gait guiding layer provided with the supporting mechanism and the guiding mechanism and the flexible substrate layer are designed, targeted correcting force is provided by arranging the positioning grooves and the springs, and height correcting blocks, round protruding structures on the surfaces of the height correcting blocks and movable supporting blocks are customized in a targeted mode; and the problems of a splay-in foot posture, a flatfoot posture and an ankle varus or ankle valgus foot posture can be effectively corrected.
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Description

Technical Field

[0001] The utility model relates to the technical field of orthopedic insoles, in particular to a 3D printed orthopedic insole with a gait adjustment function. Background Art

[0002] In people's daily lives, long-term bad gait habits or congenital factors can easily lead to foot problems, such as pigeon-toed feet, flat feet, and ankle inversion or valgus. In order to ensure the health of the feet, the design of orthotic insoles is particularly important. However, there are some problems in the existing technology:

[0003] First, existing orthopedic insoles are insufficient in correcting pigeon-toed foot posture and are unable to provide an effective structure to adjust the pigeon-toed foot posture, resulting in unsatisfactory correction effects.

[0004] Secondly, existing flatfoot correction insoles lack targeted design in terms of arch support and cannot provide sufficient support to help correct flat feet, making it difficult to effectively solve patients' foot posture problems.

[0005] In addition, existing orthopedic insoles are not well designed in terms of ankle joint stability and cannot effectively correct ankle inversion or ankle eversion problems.

[0006] Therefore, there is an urgent need to design a 3D printed orthopedic insole with gait adjustment function that can solve the above technical problems. Utility Model Content

[0007] In view of the problems mentioned in the background technology, the purpose of the present invention is to provide a 3D printed orthopedic insole with gait adjustment function to solve the problems mentioned in the background technology.

[0008] In order to achieve the above objectives, the present invention mainly provides the following technical solutions:

[0009] A 3D printed orthopedic insole with gait adjustment function, comprising an insole body and:

[0010] Support mechanism and guide mechanism; wherein:

[0011] The support mechanism includes an inward-toed correction component provided at the upper end of the gait guide layer on the arch side and a flat foot correction component at the middle end;

[0012] The guiding mechanism comprises an ankle joint correction component arranged at the lower end of the gait guiding layer.

[0013] Furthermore, the pigeon-toed correction component includes a positioning groove provided at the upper end of the arch side of the gait guide layer, a spring is fixedly installed in the positioning groove, and a gasket is fixedly installed on the top of the spring.

[0014] Furthermore, the flatfoot correction component includes a correction block movably mounted on the middle end of the arch side of the gait guide layer, and a circular protrusion is provided on the upper surface of the correction block.

[0015] Furthermore, the ankle joint correction component includes a limiting groove opened at the lower end of the gait guide layer, a sliding groove is opened on the inner side of the limiting groove, a sliding part is movably installed in the sliding groove, and a buckle a is provided on the upper surface of the sliding part. The support block is connected to the buckle a through a buckle b provided on its lower surface.

[0016] Furthermore, it also includes a flexible base layer arranged on the upper layer of the gait guidance layer.

[0017] Furthermore, hook-surface Velcro is provided at the center and surrounding sides of the upper and lower ends of the gait guidance layer, and fleece-surface Velcro is provided at the position of the flexible base layer opposite to the hook-surface Velcro. Receiving grooves a, b and c are respectively provided at the positions of the eight correction components, flat foot correction components and ankle joint correction components in the gait guidance layer.

[0018] Furthermore, the gait guiding layer, the flexible base layer and related structures except the hook-side Velcro and the fleece-side Velcro are all made by 3D printing technology.

[0019] Furthermore, the outer structure of the pad body is designed based on ergonomics.

[0020] Compared with the prior art, the beneficial effects of the present invention are mainly reflected in:

[0021] First, compared to existing orthopedic insoles, they are insufficient in correcting pigeon-toed foot posture, and it is difficult to provide an effective structure to adjust pigeon-toed foot posture. To address this problem, the present invention provides a 3D-printed orthopedic insole with gait adjustment function, equipped with a pigeon-toed correction component. This component uses a positioning groove and a spring to provide a targeted correction force, effectively correcting the pigeon-toed foot posture problem.

[0022] Secondly, compared to existing flatfoot correction insoles, which lack targeted arch support, they cannot provide sufficient support to help correct flat feet. To address this problem, the present invention's 3D-printed orthotic insoles with gait adjustment function are equipped with a flatfoot correction component. By placing a customized height correction block at the mid-point of the arch side of the gait guidance layer and a circular raised structure on its surface, it provides more stable support and can effectively correct the foot posture problem of flat feet.

[0023] Furthermore, compared to existing orthopedic insoles, which are insufficiently designed for ankle stability, they are unable to effectively correct ankle inversion or valgus. To address this issue, the present invention provides a 3D-printed orthopedic insole with gait adjustment function, equipped with an ankle correction component. By moving the slider within the chute, the support block moves to a designated position, effectively adjusting the lateral direction of the ankle joint, thereby correcting ankle inversion or valgus foot posture problems.

[0024] The above description is only an overview of the technical solution of the present invention. In order to clearly understand the technical means of the present invention and implement it according to the contents of the specification, the following preferred embodiments of the present invention are described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1 This is a three-dimensional diagram of a 3D printed orthopedic insole with gait adjustment function according to the present invention;

[0027] Figure 2 This is a front view of the gait guidance layer of the present invention;

[0028] Figure 3 This is a structural diagram of the support mechanism and guide mechanism of the utility model;

[0029] Figure 4 A bottom view of the gait guidance layer of the present invention;

[0030] Figure 5 This is a structural diagram of the flexible base layer of the present utility model;

[0031] Description of reference numerals:

[0032] 1. Pad body; 2. Gait guidance layer; 3. Flexible base layer;

[0033] 21. Support mechanism; 22. Guide mechanism; 23. Hook-surface Velcro; 31. Attachment slot a; 32. Attachment slot b; 33. Attachment slot c; 34. Loose-surface Velcro;

[0034] 211. Pigeon-toed correction component; 212. Flatfoot correction component; 221. Ankle joint correction component;

[0035] 2111, positioning groove; 2112, spring; 2113, gasket;

[0036] 2121, correction block; 2122, round protrusion;

[0037] 2211, limiting groove; 2212, sliding groove; 2213, sliding member; 2214, buckle a; 2215, supporting block; 2216, buckle b; DETAILED DESCRIPTION

[0038] The present application will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely for the purpose of explaining the relevant utility model and are not intended to limit the utility model. It should also be noted that, for ease of description, only the portions relevant to the utility model are shown in the accompanying drawings.

[0039] like Figure 1-5 As shown, the utility model is a 3D printed orthopedic insole with gait adjustment function, comprising an insole body 1, and further comprising:

[0040] Support mechanism 21 and guide mechanism 22; wherein:

[0041] The support mechanism 21 includes an inward-toed corrective component 211 located at the upper end of the gait guidance layer 2 on the arch side and a flatfoot corrective component 212 located at the middle end. The support mechanism 21 corrects part of the foot posture by providing structural support on the arch side.

[0042] The guiding mechanism 22 includes an ankle joint correction component 221 disposed at the lower end of the gait guiding layer 2, which adjusts the gait of ankle inversion or ankle eversion by raising the position of one side of the heel.

[0043] like Figure 2 、 3 As shown, in this embodiment, the pigeon-toed correction component 211 includes a positioning groove 2111 opened at the upper end of the arch side of the gait guide layer 2, and a spring 2112 is fixedly installed in the positioning groove 2111. There are three springs 2112, which are evenly distributed from top to bottom, and a gasket 2113 is fixedly installed on the top of the spring 2112; the function of the positioning groove 2111 is to provide a fixed structural groove to accommodate the fixed installation of the spring 2112, ensuring that the spring 2112 does not shift left and right during use, and the spring 2112 can adapt to the gait requirements of different patients during compression or stretching. The gasket 2113 fixedly installed on the top of the spring 2112 enhances the uniformity of pressure distribution, so that the gasket 2113 moves in the vertical direction in the positioning groove 2111, thereby correcting the wearer's pigeon-toed gait.

[0044] like Figure 2 、 3As shown, in this embodiment, the flatfoot correction component 212 includes a correction block 2121 movably mounted on the middle end of the arch side of the gait guide layer 2. The correction block 2121 is movably mounted so that its height and angle can be flexibly adjusted to meet the correction needs of different patients. A circular protrusion 2122 is provided on the upper surface of the correction block 2121. The circular protrusion 2122 is used to apply concentrated pressure to the arch area, stimulate the plantar muscles and nerves, enhance the strength of the arch, and help the arch recover and correct through physical massage.

[0045] like Figure 3 、 4 As shown, in this embodiment, the ankle joint correction component 221 includes a limiting groove 2211 provided at the lower end of the gait guide layer 2. The limiting groove 2211 ensures the range of motion of the slider 2213 within the sliding groove 2212, preventing the slider 2213 from excessive displacement. The limiting groove 2211 has a sliding groove 2212 provided inside the limiting groove 2211, and the slider 2213 is movably mounted within the sliding groove 2212. The upper surface of the slider 2213 is provided with a buckle a2214. The support block 2215 is connected to the buckle a2214 via a buckle b2216 provided on its lower surface. By moving the support block 2215 left or right, the left or right side of the heel is raised to correct the ankle inversion or ankle valgus foot posture, respectively. The movable connection between the buckle a2214 and the buckle b2216 also ensures the adjustability of the height and angle of the support block 2215, further improving walking safety and comfort.

[0046] like Figure 1 As shown, in this embodiment, a flexible base layer 3 is further included on the upper layer of the gait guidance layer 2. The flexible base layer 3 provides a comfortable contact surface for the patient's foot, which not only improves the wearing experience but also can support the supporting mechanism 21 and the guiding mechanism 22 protruding from the surface of the gait guidance layer 2.

[0047] like Figure 3 、 5As shown, in this embodiment, the center and surrounding sides of the upper and lower ends of the gait guidance layer 2 are provided with hook-surface Velcro 23, and the flexible base layer 3 is provided with a fleece-surface Velcro 34 at a position opposite to the hook-surface Velcro 23. The cooperation between the hook-surface Velcro 23 and the fleece-surface Velcro 34 ensures a stable connection between the flexible base layer 3 and the gait guidance layer 2, preventing sliding or shifting during use, while also taking into account detachability, which is convenient for targeted replacement of internal parts or cleaning; relative to the gait guidance layer 2, the correction of inward-facing eight Component 211, flat foot correction component 212 and ankle joint correction component 221 are respectively provided with receiving grooves a31, receiving grooves b32 and receiving grooves c33. The setting of receiving grooves a31, receiving grooves b32 and receiving grooves c33 ensures that the pigeon-toed correction component 211, flat foot correction component 212 and ankle joint correction component 221 can be accurately positioned and embedded in the lower layer of the flexible base layer 3, so that they can act firmly on the targeted areas of the foot when walking, ensuring a stable correction effect.

[0048] like Figure 1 As shown, in this embodiment, the gait guidance layer 2, the flexible base layer 3 and related structures except the hook-side Velcro 23 and the fleece-side Velcro 34 are all made by 3D printing technology. The 3D printing technology can be used to highly customize the shape and size of each component, so that the pad body 1 can better match the patient's foot characteristics.

[0049] In this embodiment, the materials used in the 3D printing technology include: any one or more combinations of polyurethane, polylactic acid, nylon plastic, photosensitive resin, silicone, rubber, latex, ABS plastic, PVC plastic, silicone resin, and acrylic resin. The selection of materials is based on their unique performance advantages, giving full play to their performance advantages and ensuring the overall functionality and durability of the insole.

[0050] The production process of a 3D printed orthopedic insole that is convenient for rehabilitation of the utility model is as follows: first, a comprehensive examination of the patient's foot is carried out to evaluate the arch shape, gait characteristics and other relevant orthopedic needs in order to determine the insole design parameters; then, a 3D scanner is used to scan the patient's sole to obtain 3D data of the sole, which will serve as the basis for customizing the insole to ensure that the insole fits the patient's foot perfectly; then, the scanned 3D sole data is imported into the design software, and a 3D model of the insole is generated according to the patient's foot needs and orthopedic requirements; then, according to the design requirements and the actual needs of the patient, suitable 3D printing materials are selected to ensure the comfort and durability of the insole; finally, the designed insole model is printed out using a 3D printer. After printing, the insole is subjected to necessary post-processing, such as surface treatment, flexibility adjustment, etc., and fine-tuned according to the patient's feedback, to ultimately form a finished orthopedic insole suitable for the patient.

[0051] like Figure 1As shown, in this embodiment, the outer structure of the pad body 1 is designed according to ergonomics. The ergonomic design ensures that the outer shape of the pad body 1 is highly consistent with the natural curve of the foot, providing optimal support and comfort.

[0052] The present invention is further described above in conjunction with the embodiments, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in this field without departing from the purpose of the present invention.

Claims

1. A 3D printed orthopedic insole with gait adjustment function, comprising an insole body (1), characterized in that: Also includes: Support mechanism (21) and guide mechanism (22); wherein: The support mechanism (21) comprises an inward-facing toe correction component (211) provided at the upper end of the arch side of the gait guide layer (2) and a flat foot correction component (212) provided at the middle end; The guide mechanism (22) comprises an ankle joint correction component (221) arranged at the lower end of the gait guide layer (2).

2. The 3D printed orthopedic insole with gait adjustment function according to claim 1, characterized in that: The pigeon-toed correction component (211) comprises a positioning groove (2111) provided at the upper end of the arch side of the gait guide layer (2), a spring (2112) fixedly installed in the positioning groove (2111), and a gasket (2113) fixedly installed on the top of the spring (2112).

3. The 3D printed orthopedic insole with gait adjustment function according to claim 1, characterized in that: The flat foot correction component (212) comprises a correction block (2121) movably mounted on the middle end of the arch side of the gait guide layer (2), and a circular protrusion (2122) is provided on the upper surface of the correction block (2121).

4. The 3D printed orthopedic insole with gait adjustment function according to claim 1, characterized in that: The ankle joint correction component (221) includes a limiting groove (2211) provided at the lower end of the gait guide layer (2), a sliding groove (2212) provided on the inner side of the limiting groove (2211), a sliding member (2213) movably installed in the sliding groove (2212), a buckle a (2214) provided on the upper surface of the sliding member (2213), and a support block (2215) connected to the buckle a (2214) by a buckle b (2216) provided on the lower surface thereof.

5. The 3D printed orthopedic insole with gait adjustment function according to claim 1, characterized in that: It also includes a flexible base layer (3) arranged on the upper layer of the gait guidance layer (2).

6. The 3D printed orthopedic insole with gait adjustment function according to claim 5, characterized in that: The center and circumference of the upper and lower ends of the gait guidance layer (2) are provided with hook-surface Velcro (23); the flexible base layer (3) is provided with a fleece-surface Velcro (34) at a position opposite to the hook-surface Velcro (23); and receiving grooves a (31), b (32) and c (33) are respectively provided at positions of the inner occipital correction component (211), the flat foot correction component (212) and the ankle joint correction component (221) relative to the gait guidance layer (2).

7. The 3D printed orthopedic insole with gait adjustment function according to claim 6, characterized in that: The gait guide layer (2), the flexible base layer (3) and related structures except the hook-side Velcro (23) and the fleece-side Velcro (34) are all made by 3D printing technology.

8. The 3D printed orthopedic insole with gait adjustment function according to claim 1, characterized in that: The outer structure of the pad body (1) is designed based on ergonomics.