Energy storage insole suitable for diabetic foot and preparation method of energy storage insole

Abstract

The invention discloses an energy storage insole suitable for diabetic foot and a preparation method of the energy storage insole. An energy storage insole suitable for diabetic feet comprises an insole body formed by a carbon fiber plate, and the insole body comprises a front foot energy storage area and a rear foot supporting area which are arranged front and back; the rear foot supporting area comprises an upper supporting plate part and a lower supporting plate part which are arranged up and down, a lattice-shaped supporting cushion block is clamped between the upper supporting plate part and the lower supporting plate part, and the supporting cushion block is of a hollow supporting structure formed by connecting rod bodies; the front end of the upper supporting plate part is connected with an extending part which extends downwards in an inclined mode, the extending part extends forwards and then is bent backwards, and then a bent plate structure is formed. The forefoot energy storage area is of a closed energy storage structure defined by connecting a bent plate structure and a sole supporting plate. The front end of the lower supporting plate part is fixedly connected with the bent structure in a welded mode. By adopting the carbon fiber plate, the effects of storing energy in a standing period and releasing energy in a pushing period are achieved.

Description

Technical Field

[0001] This invention relates to the field of medical assistive device technology, specifically to nursing insoles and their preparation methods. Background Technology

[0002] Diabetic foot is a very common cause of foot problems such as forefoot ulcers. These problems often lead to gait abnormalities, such as weakened propulsion force, reduced walking speed, shortened stride length, and reduced ankle plantar flexion torque. They may also cause secondary injuries such as further forefoot ulceration or an imbalance in muscle strength between the left and right legs.

[0003] Traditional solutions involve fitting fillers or prostheses to the amputation site, but this approach cannot provide the desired assistance. Summary of the Invention

[0004] In view of the problems existing in the prior art, the present invention provides an energy-storing insole suitable for diabetic foot and a method for preparing the same, thereby solving at least one of the above-mentioned technical problems.

[0005] The technical solution of the present invention is: an energy-storing insole suitable for diabetic foot, characterized in that it comprises a pad body formed of carbon fiber plate, wherein the pad body comprises a forefoot energy-storing area and a rearfoot support area arranged at the front and back.

[0006] The hindfoot support area includes an upper support plate and a lower support plate, which are arranged vertically. A lattice-shaped support pad is sandwiched between the upper support plate and the lower support plate. The support pad is a hollow support structure formed by connecting rods.

[0007] The front end of the upper support plate is connected to a bent plate structure, the bent plate structure including an extension that extends downward from the side of the upper support plate, the extension extending forward and then bending backward.

[0008] The forefoot energy storage area is a closed energy storage structure formed by the curved plate structure and the foot support plate.

[0009] The front end of the lower support plate is welded and fixedly connected to the bending structure.

[0010] This invention utilizes carbon fiber plates to achieve the effect of storing energy during the standing period and releasing energy during the push-off period.

[0011] More preferably, the rod is made of TPU.

[0012] More preferably, the support pad includes a first lattice region and a second lattice region disposed at opposite ends;

[0013] The first lattice region includes a first lattice structure in the shape of a cuboid framework and a second lattice structure in the shape of a diverging pattern.

[0014] The first lattice structure is arranged in a three-dimensional matrix;

[0015] The second lattice structure includes four first bars that diverge forward and four second bars that diverge backward;

[0016] Four first rods are used to connect adjacent corners of four adjacent first lattice structures;

[0017] Four second rods are used to connect adjacent corners of four adjacent first lattice structures;

[0018] A second lattice structure is disposed between eight adjacent first lattice structures;

[0019] The second lattice region includes a divergent third lattice structure;

[0020] The third lattice structure includes four forward-diverging third bars and four backward-diverging fourth bars.

[0021] Furthermore, the third rod of the foremost third lattice structure in the fourth lattice region is connected to the corner of the last first lattice structure in the first lattice region.

[0022] More preferably, the pad is formed by connecting a first carbon fiber plate, a second carbon fiber plate, and a third carbon fiber plate;

[0023] The first carbon fiber plate is the foot support plate;

[0024] The second carbon fiber plate includes the upper support plate portion, the extension portion, and the bent plate structure;

[0025] The third carbon fiber plate is the lower support plate portion.

[0026] More preferably, the vertical projection of the second carbon fiber plate is in the shape of a shoe insole;

[0027] The outer contour of the vertical projection of the first carbon fiber plate matches the vertical projection contour of the second carbon fiber plate.

[0028] The outer contour of the vertical projection of the third carbon fiber plate matches the vertical projection contour of the second carbon fiber plate.

[0029] More preferably, the thickness of the rear side of the first carbon fiber plate decreases from front to back.

[0030] More preferably, the support pad is 3D printed.

[0031] A method for preparing an energy-storing insole suitable for diabetic foot, characterized by comprising the following steps:

[0032] Step 1: Prepare the first carbon fiber plate, the second carbon fiber plate, and the third carbon fiber plate;

[0033] Step 2: Connect the first carbon fiber plate, the second carbon fiber plate, and the third carbon fiber plate to form a pad.

[0034] Step 3: Prepare the support pad and fix it between the upper support plate and the lower support plate.

[0035] A further preferred embodiment is the method for determining the structure of the support pad as follows:

[0036] Step 1: The patient steps on the pressure testing platform, which is equipped with a matrix of pressure sensors. Based on the sensing data of different pressure sensors, the pressure distribution data of different areas of the sole and hindfoot is obtained. The sole and hindfoot area is divided into different pressure zones based on the pressure distribution data.

[0037] Step 2: Adjust different lattice simulation blocks according to the pressure range values ​​of different pressure zones, and select the corresponding optimal lattice simulation block;

[0038] Step 3: Combine the optimal lattice simulation blocks of different pressure zones to form a support pad block.

[0039] More preferably, the adjustment of the lattice simulation block includes the adjustment of the crystal structure of the lattice, the adjustment of the lattice thickness, and the adjustment of the number of lattices;

[0040] After adjusting different lattice simulation blocks, mechanical performance data of the lattice simulation blocks were obtained.

[0041] Each pressure zone has a corresponding required data range. The mechanical test performance data of the lattice simulation block is adjusted to the required data range, and the lattice simulation block that meets the required data range is the optimal lattice simulation block.

[0042] More preferably, the mechanical test performance data includes hardness, weight, and deformation under stress.

[0043] More preferably, the partitioning method of the pressure zone is matrix partitioning, inner-outer ring partitioning, or hybrid partitioning;

[0044] The hybrid partitioning includes an outer ring partition and a matrix partition within the ring partition.

[0045] Beneficial effects:

[0046] This invention utilizes carbon fiber plates to achieve the effect of storing energy during the standing period and releasing energy during the push-off period.

[0047] The lattice structure provides support at the heel and can be switched as needed.

[0048] The structure of this invention facilitates adjustment and replacement of the crystal lattice structure, enabling modular assembly of components. Attached Figure Description

[0049] Figure 1 This is a schematic diagram of a specific embodiment 1 of the present invention;

[0050] Figure 2 This is a schematic diagram of a specific embodiment 1 of the present invention;

[0051] Figure 3 This is an exploded view of the pad body in specific embodiment 1 of the present invention;

[0052] Figure 4 This is a schematic diagram of the structure of the pad body in specific embodiment 1 of the present invention;

[0053] Figure 5 This is a schematic diagram of the support pad block according to a specific embodiment 1 of the present invention;

[0054] Figure 6 This is a partial structural schematic diagram of a specific embodiment 1 of the present invention.

[0055] In the diagram: a represents the forefoot energy storage area, and b represents the hindfoot support area;

[0056] 1 is the first carbon fiber plate, 2 is the second carbon fiber plate, 3 is the third carbon fiber plate, and 4 is the support pad.

[0057] 21 is the upper support plate, 22 is the extension, and 23 is the curved plate structure;

[0058] 41 represents the first lattice structure, 42 the second lattice structure, and 43 the third lattice structure. Detailed Implementation

[0059] See Figures 1 to 6Specific embodiment 1: An energy-storing insole suitable for diabetic foot includes a pad body formed of carbon fiber plate. The pad body includes a forefoot energy storage area a and a rearfoot support area b, arranged front and rear. The rearfoot support area b includes an upper support plate 21 and a lower support plate, arranged vertically. A lattice-shaped support pad 4 is sandwiched between the upper and lower support plate 21. The support pad 4 is a hollow support structure formed by connecting rods. A bent plate structure 23 is connected to the front end of the upper support plate 21. The bent plate structure 23 includes an extension 22 extending downward from the side of the upper support plate 21, extending forward and then bending backward. The forefoot energy storage area a is a closed energy storage structure formed by the bent plate structure 23 and a foot support plate. The front end of the lower support plate is welded and fixedly connected to the bent structure. This invention achieves the effect of storing energy during the standing period and releasing energy during the push-off period by using carbon fiber plate.

[0060] The rod is made of TPU.

[0061] The support pad 4 includes a first lattice region and a second lattice region arranged front and rear. The first lattice region includes a first lattice structure 41 in the shape of a cuboid frame and a second lattice structure 42 in a divergent shape. The first lattice structure 41 is arranged in a three-dimensional matrix. The second lattice structure 42 includes four first rods diverging forward and four second rods diverging backward. The four first rods are used to connect the adjacent corners of the four adjacent first lattice structures 41. The four second rods are used to connect the adjacent corners of the four adjacent first lattice structures 41. A second lattice structure 42 is arranged between eight adjacent first lattice structures 41. The second lattice region includes a third lattice structure 43 in a divergent shape. The third lattice structure 43 includes four third rods diverging forward and four fourth rods diverging backward. The third rod of the foremost third lattice structure 43 in the fourth lattice region is connected to the corner of the last first lattice structure 41 in the first lattice region.

[0062] The pad is formed by connecting a first carbon fiber plate 1, a second carbon fiber plate 2, and a third carbon fiber plate 3; the first carbon fiber plate 1 is a foot support plate; the second carbon fiber plate 2 includes an upper support plate portion 21, an extension portion 22, and a curved plate structure 23; the third carbon fiber plate 3 is a lower support plate portion.

[0063] The curved plate structure 23 includes an upper part and a lower part arranged vertically, which are connected by a bending structure. The first carbon fiber plate is provided with a toe support, which is welded to the upper part.

[0064] The lower part has an arc-shaped, convex structure. The lowest point of the lower part is lower than the lowest point of the third carbon fiber plate.

[0065] The vertical projection of the second carbon fiber plate 2 is in the shape of a shoe insole; the outer contour of the vertical projection of the first carbon fiber plate 1 matches the vertical projection contour of the second carbon fiber plate 2; the outer contour of the vertical projection of the third carbon fiber plate 3 matches the vertical projection contour of the second carbon fiber plate 2.

[0066] The thickness of the rear side of the first carbon fiber plate 1 decreases from front to back.

[0067] The first carbon fiber plate 1 is erected above the upper support plate 21. The area covered by the first carbon fiber plate 1 of the upper support plate 21 is not less than 20% of the area of ​​the upper support plate 21.

[0068] Support pad 4 is 3D printed.

[0069] A method for preparing an energy-storing insole suitable for diabetic foot, characterized by comprising the following steps:

[0070] Step 1: Prepare the first carbon fiber plate 1, the second carbon fiber plate 2, and the third carbon fiber plate 3;

[0071] Step 2: Connect the first carbon fiber plate 1, the second carbon fiber plate 2, and the third carbon fiber plate 3 to form a pad.

[0072] Step 3: Prepare support pad 4 and fix it between the upper support plate 21 and the lower support plate.

[0073] The method for determining the structure of support pad 4 is as follows:

[0074] Step 1: The patient steps on the pressure testing platform, which is equipped with a matrix of pressure sensors. Based on the sensing data from different pressure sensors, the pressure distribution data of different areas of the heel is obtained. The heel area is divided into different pressure zones based on the pressure distribution data.

[0075] In step two, lattice pressure adjustment data is obtained, which includes the pressure change after the lattice is replaced.

[0076] The adjustment of the lattice simulation block includes adjusting the crystal structure, the thickness, and the number of lattices. After adjusting different lattice simulation blocks, mechanical test performance data of the lattice simulation block are obtained. The pressure range value of each pressure zone is set with a corresponding required data range. The mechanical test performance data of the lattice simulation block is adjusted to the required data range, and the lattice simulation block that meets the required data range is the optimal lattice simulation block.

[0077] The mechanical performance data includes hardness, weight, and stress-strain curve parameters.

[0078] The above are merely preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. An energy-storing insole suitable for diabetic foot, characterized in that, The cushion includes a pad formed of carbon fiber plates, the pad including a front foot energy storage area and a rear foot support area arranged at the front and rear. The hindfoot support area includes an upper support plate and a lower support plate, which are arranged vertically. A lattice-shaped support pad is sandwiched between the upper support plate and the lower support plate. The support pad is a hollow support structure formed by connecting rods. The front end of the upper support plate is connected to a bent plate structure, the bent plate structure including an extension that extends downward from the side of the upper support plate, the extension extending forward and then bending backward. The forefoot energy storage area is a closed energy storage structure formed by the curved plate structure and the foot support plate. The front end of the lower support plate is welded and fixedly connected to the bending structure.

2. The energy-storing insole for diabetic foot according to claim 1, characterized in that: The rod is made of TPU.

3. The energy-storing insole suitable for diabetic foot according to claim 1, characterized in that: The support pad includes a first lattice region and a second lattice region arranged at the front and rear. The first lattice region includes a first lattice structure in the shape of a cuboid framework and a second lattice structure in the shape of a diverging pattern. The first lattice structure is arranged in a three-dimensional matrix; The second lattice structure includes four first bars that diverge forward and four second bars that diverge backward; Four first rods are used to connect adjacent corners of four adjacent first lattice structures; Four second rods are used to connect adjacent corners of four adjacent first lattice structures; A second lattice structure is disposed between eight adjacent first lattice structures; The second lattice region includes a divergent third lattice structure; The third lattice structure includes four forward-diverging third bars and four backward-diverging fourth bars. Furthermore, the third rod of the foremost third lattice structure in the fourth lattice region is connected to the corner of the last first lattice structure in the first lattice region.

4. The energy-storing insole suitable for diabetic foot according to claim 1, characterized in that: The pad is composed of a first carbon fiber plate, a second carbon fiber plate, and a third carbon fiber plate connected together. The first carbon fiber plate is the foot support plate; The second carbon fiber plate includes the upper support plate portion, the extension portion, and the bent plate structure; The third carbon fiber plate is the lower support plate portion.

5. The energy-storing insole for diabetic foot according to claim 4, characterized in that: The vertical projection of the second carbon fiber plate is in the shape of a shoe insole; The outer contour of the vertical projection of the first carbon fiber plate matches the vertical projection contour of the second carbon fiber plate. The outer contour of the vertical projection of the third carbon fiber plate matches the vertical projection contour of the second carbon fiber plate.

6. The energy-storing insole for diabetic foot according to claim 4, characterized in that: The thickness of the rear side of the first carbon fiber plate decreases from front to back.

7. The method for preparing an energy-storing insole suitable for diabetic foot according to claim 4, characterized in that, Includes the following steps: Step 1: Prepare the first carbon fiber plate, the second carbon fiber plate, and the third carbon fiber plate; Step 2: Connect the first carbon fiber plate, the second carbon fiber plate, and the third carbon fiber plate to form a pad. Step 3: Prepare the support pad and fix it between the upper support plate and the lower support plate.

8. The method for preparing an energy-storing insole suitable for diabetic foot according to claim 7, characterized in that: The method for determining the structure of the support pad is as follows: Step 1: The patient steps on the pressure testing platform, which is equipped with a matrix of pressure sensors. Based on the sensing data of different pressure sensors, the pressure distribution data of different areas of the sole and hindfoot is obtained. The sole and hindfoot area is divided into different pressure zones based on the pressure distribution data. Step 2: Adjust different lattice simulation blocks according to the pressure range values ​​of different pressure zones, and select the corresponding optimal lattice simulation block; Step 3: Combine the optimal lattice simulation blocks of different pressure zones to form a support pad block.

9. A method for preparing an energy-storing insole suitable for diabetic foot according to claim 8, characterized in that: The adjustment of the lattice simulation block includes the adjustment of the crystal structure, the thickness of the lattice, and the number of lattices; After adjusting different lattice simulation blocks, mechanical performance data of the lattice simulation blocks were obtained. Each pressure zone has a corresponding required data range. The mechanical test performance data of the lattice simulation block is adjusted to the required data range, and the lattice simulation block that meets the required data range is the optimal lattice simulation block.

10. A method for preparing an energy-storing insole suitable for diabetic foot according to claim 9, characterized in that: The mechanical performance data includes hardness, weight, and deformation under stress; The partitioning method of the pressure zone is matrix partitioning, inner-outer ring partitioning, or hybrid partitioning; The hybrid partitioning includes an outer ring partition and a matrix partition within the ring partition.

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