3D printed high arch foot repair insole

Abstract

The utility model relates to medical instruments. The 3D-printed high-arch foot repairing insole comprises an insole body, a supporting groove is formed in the position, opposite to the arch of a patient, of the insole body, and an arch supporting block is installed in the supporting groove; a clamping edge with a semicircular cross section is arranged at the bottom of the middle section of the side, close to the outside of the foot, of the arch supporting block, an arc-shaped groove is formed in the position, opposite to the clamping edge, in the mounting groove, and the clamping edge is located in the arc-shaped groove; the bottom face of the foot arch supporting block is an inclined face, a rubber wedge block with the cross section in a right trapezoid shape is further arranged between the bottom face of the foot arch supporting block and the groove bottom face of the supporting groove, and the inclined face of the rubber wedge block faces upwards and is opposite to the foot arch supporting block. According to the utility model, the supporting height and angle of the arch supporting part can be conveniently and quickly adjusted to a certain extent so as to meet the supporting requirements of different rehabilitation stages.

Description

Technical Field

[0001] This utility model relates to medical devices, specifically to a 3D-printed high arch repair insole. Background Technology

[0002] High arches, also known as claw foot, is a common foot deformity characterized by a high longitudinal arch. A small percentage are congenital, but most develop after age 3, and are caused by neurological disorders such as tethered cord syndrome, syringomyelia, and hereditary neurological disorders. Typical deformities include high arches, equinus, and eversion of the foot. Due to the high longitudinal arch and shortened foot length, foot stability is poor, and stress distribution is uneven. Patients with high arches often cannot walk for long periods, experience foot fatigue, and suffer from severe pain. To address this, some insoles for high arch correction have been developed. Most of these insoles only provide support by raising the arch area. However, for more severe cases, there are also custom-made high arch insoles using 3D printing based on the patient's foot data, which offer a higher degree of fit compared to ordinary insoles. However, after a long period of clinical observation, it has been found that these insoles are usually fixed in terms of support height and angle, and are relatively expensive. As the condition progresses and treatment is involved, the clinical manifestations of high arches in patients are actually constantly changing. If they are re-customized every once in a while, the cost will be too high. Without adaptive treatment, the treatment needs cannot be met. Therefore, it is of great significance to find a simple and efficient way to adjust the support, which can reduce treatment costs and improve treatment results. Summary of the Invention

[0003] The purpose of this invention is to provide a support-adjustable 3D-printed high arch repair insole.

[0004] To achieve the above-mentioned objectives, the technical solution adopted by this utility model is as follows: a 3D-printed high-arch foot repair insole, comprising an insole body, a support groove provided at a position opposite to the patient's arch, and an arch support block installed in the support groove; a semi-circular cross-section ridge is provided at the bottom of the middle section of the side of the arch support block near the outside of the foot, and an arc-shaped groove is provided in the mounting groove opposite to the ridge, with the ridge located in the arc-shaped groove; the bottom surface of the arch support block is inclined, and a rubber wedge with a right-angled trapezoidal cross-section is provided between the bottom surface of the arch support block and the bottom surface of the support groove, with the inclined surface of the rubber wedge facing upward and opposite to the arch support block.

[0005] Preferably, both the bottom surface of the arch support block and the bottom surface of the support groove are provided with anti-slip serrations.

[0006] Preferably, the insole body and the arch support block are 3D printed insole bodies and arch support blocks.

[0007] Preferably, the top surface of the arch support block is 3D printed with several top grooves extending along the width direction of the arch support block, and a strip-shaped air bladder is provided in the top groove. The end of the strip-shaped air bladder near the foot is provided with an inflation / deflation port.

[0008] The beneficial effects of this invention are mainly reflected in its ability to conveniently and quickly adjust the support height and angle of the arch support to adapt to the support needs of different rehabilitation stages. Specifically, during use, after the insole body is placed in place inside the shoe, the position of the rubber wedges can be adjusted left and right according to the patient's actual support needs. After adjustment, the arch support block is installed in the support groove. Because the arch support block is engaged with the arc-shaped groove through the locking ridge, the two can effectively limit the position of the arch support block, resulting in good stability. At the same time, by using the rubber wedges to support different positions of the arch support block, this invention can adjust the support height and angle of the arch support block, giving it an adjustment range. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the structure of this utility model;

[0010] Figure 2 This is a cross-sectional schematic diagram of the present invention. Detailed Implementation

[0011] like Figure 1-2 As shown, a 3D-printed insole for repairing high arches is mainly used in patients with high arches. It is designed to provide foot support for high arches and reduce the burden on patients at different stages of treatment.

[0012] like Figure 1 As shown, this utility model includes an insole body 1, with a support groove 2 positioned opposite the patient's arch. An arch support block 3 is installed within the support groove 2. As the name suggests, the arch support block 3 is directly fabricated to fit the patient's arch, while the support groove 2 serves as the carrier for mounting the arch support block 3.

[0013] like Figure 2As shown, the bottom of the arch support block 3, on the side closest to the foot, has a semi-circular cross-section locking ridge 4. An arc-shaped groove 5 is located within the support groove 2, opposite the locking ridge 4, and the locking ridge 4 is situated within the arc-shaped groove 5. The locking ridge 4 can both engage within the arc-shaped groove 5 to form a unified positioning and allow for some rotation, thereby adjusting the angle and upward tilt of the arch support block 3. The insole body 1 and the arch support block 3 can be injection molded or 3D printed. The latter better matches the physiological curve of the patient's foot, providing greater comfort. The former, however, allows for mass production and has a lower overall cost.

[0014] To facilitate adjustment of the arch support block 3, the bottom surface of the arch support block 3 is inclined. A rubber wedge 6 with a right-angled trapezoidal cross-section is also provided between the bottom surface of the arch support block 3 and the bottom surface of the support groove 2. The inclined surface of the rubber wedge 6 faces upwards and is opposite to the arch support block 3. In use, the support height and angle can be adjusted by adjusting the position of the rubber wedge 6. The flexible rubber wedge 6, due to its deformation capacity, can better conform to the surfaces of the arch support block 3 and the insole body 1, ensuring adequate support. Furthermore, anti-slip serrations 7 can be provided on both the bottom surface of the arch support block 3 and the bottom surface of the support groove 2 to further improve stability.

[0015] Furthermore, to further enhance the adjustable space, this invention can also 3D print several top grooves 8 extending along the width direction of the arch support block 3 on the top surface of the arch support block 3. A strip-shaped airbag 9 is disposed within each top groove 8, and an inflation / deflation port is provided at one end of the strip-shaped airbag 9 near the foot. Through direct contact between the strip-shaped airbag 9 and the foot, flexible cushioning can be achieved to a certain extent. Simultaneously, by adjusting the air pressure within the strip-shaped airbag 9, the surface support arc of the arch support block 3 can also be adjusted. Combined with the self-adjustment of the arch support block 3, this provides better adjustability.

Claims

1. A 3D-printed high-arch repair insole, comprising an insole body (1), wherein a support groove (2) is provided on the insole body (1) at a position opposite to the patient's arch, and an arch support block (3) is installed in the support groove (2); characterized in that: The arch support block (3) has a semi-circular cross-section ridge (4) at the bottom of the middle section on the side near the outside of the foot. An arc-shaped groove (5) is provided in the support groove (2) opposite to the ridge (4). The ridge (4) is located in the arc-shaped groove (5). The bottom surface of the arch support block (3) is inclined. A rubber wedge block (6) with a right-angled trapezoidal cross-section is also provided between the bottom surface of the arch support block (3) and the bottom surface of the support groove (2). The inclined surface of the rubber wedge block (6) faces upward and is opposite to the arch support block (3).

2. The 3D-printed high-arch repair insole according to claim 1, characterized in that: The bottom surface of the foot arch support block (3) and the bottom surface of the support groove (2) are both provided with anti-slip serrations (7).

3. The 3D-printed high-arch repair insole according to claim 2, characterized in that: The insole body (1) and the arch support block (3) are 3D printed insole bodies (1) and arch support blocks (3).

4. The 3D-printed high-arch repair insole according to claim 3, characterized in that: The top surface of the foot arch support block (3) is 3D printed with several top grooves (8) extending along the width direction of the foot arch support block (3). A strip-shaped air bladder (9) is provided in the top groove (8), and an inflation / deflation port is provided at one end of the strip-shaped air bladder (9) near the foot.

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