CN208799389U - A kind of 3D printing orthopedic insoles - Google Patents
A kind of 3D printing orthopedic insoles Download PDFInfo
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- CN208799389U CN208799389U CN201721682918.4U CN201721682918U CN208799389U CN 208799389 U CN208799389 U CN 208799389U CN 201721682918 U CN201721682918 U CN 201721682918U CN 208799389 U CN208799389 U CN 208799389U
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Abstract
The utility model relates to rehabilitation accessory technical field more particularly to a kind of 3D printing orthopedic insoles.Wherein, 3D printing orthopedic insoles, including the bottom for carrying out foot treatment to sole, bottom includes arch area, loe zone, sole proparea, area and heel area in sole, and arch area, loe zone, sole proparea, area and heel area are structure as a whole in sole；Wherein, arch area is constituted equipped with the first space network, loe zone is constituted equipped with the second space network, sole proparea is constituted equipped with third space network, area is constituted equipped with the 4th space network in sole, heel area is constituted equipped with the 5th space network, and the first space network, the second space network, third space network, the 4th space network and the 5th space network are respectively different space networks.The utility model provides a kind of 3D printing orthopedic insoles, uses different space networks for the different parts in sole vola, keeps stress more balanced.
Description
Technical Field
The utility model relates to a recovered utensil technical field that assists especially relates to a 3D prints orthopedic shoe-pad.
Background
When a person stands, walks and bears a load, the arches of the two feet are always in a suspended state to achieve the effects of buffering and vibrating and protecting internal organs, but if the structure forming the arches is dysplastic or the arches disappear due to various damages or degeneration, and after the flat feet are formed, the phenomena of soreness, numbness, swelling and pain of the feet during walking can occur, and after the walking lasts for a long time, the symptoms of foot pads, corns, calcaneal spurs, hyperosteogeny, lameness and the like can be formed, and when the person suffering from the diseases is flat, the insole can be padded in the shoe to improve the comfort level of the feet. Compared with the existing flat insole, the orthopedic insole can better protect the feet of a human body.
The orthopedic insole is a product which can change the ground to adapt to the foot shape of a wearer, and can meet the requirements of people suffering from biomechanical abnormalities of lower limbs or mechanical problems of the foot caused by the abnormalities to a certain extent because the orthopedic insole can be fitted with the foot according to the foot shape of a human body. However, if the orthopedic insoles with uniform shapes are produced, the effect of the orthopedic insoles is greatly reduced because the foot shapes of all people are different, and therefore, the 3D printing orthopedic insoles gradually become the development trend of the orthopedic insoles due to the excellent personalized customization advantages.
Most of 3D printing orthopedic insoles available in the market are solid or single porous structures, and compared with the traditional orthopedic insoles made of EVA (ethylene/vinyl acetate copolymer, also called ethylene-vinyl acetate copolymer), the distribution of stress at a focus part has no obvious change or advantage. The reason for the uneven stress is that the existing 3D printing orthopedic insoles adopt a single porous reticular structure, so that the pressure born by the insole in unit area is consistent, and therefore, the pressure on the periphery of a focus cannot be fully decomposed, pressure distribution around the focus of a common patient (such as a diabetic foot) is unreasonable, and blood circulation barriers of tissues at other sole parts can be caused under severe conditions. In addition, the 3D printed orthopedic insole using the single porous mesh structure has disadvantages of a single structure, poor strength, and poor durability. In addition, the 3D printed orthopedic insole adopting a solid structure also has the disadvantages of poor air permeability, a single structure and heavy weight. Therefore, in view of the above problems caused by the single porous net structure or a solid structure adopted in the prior art for 3D printing, it is desirable to provide a 3D printing orthopedic insole which is comfortable, light in weight and more durable.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a 3D prints orthopedic shoe-pad adopts different three-dimensional network structure to the plantar different positions of sole, makes the atress more balanced.
In order to achieve the above object, the 3D printing orthopedic insole of the present invention comprises a bottom layer for foot treatment of a sole, wherein the bottom layer comprises an arch region for supporting an arch of the sole, the region of the bottom layer except the arch region is sequentially divided into a toe region, a forefoot forward region, a middle sole region and a heel region from a toe portion to a heel portion of the sole according to a length direction of the sole, and the arch region, the toe region, the forefoot forward region, the middle sole region and the heel region are of an integrated structure; wherein,
the foot arch area is provided with a first three-dimensional reticular structure, the toe area is provided with a second three-dimensional reticular structure, the front area of the sole is provided with a third three-dimensional reticular structure, the middle area of the sole is provided with a fourth three-dimensional reticular structure, the heel area is provided with a fifth three-dimensional reticular structure, and the first three-dimensional reticular structure, the second three-dimensional reticular structure, the third three-dimensional reticular structure, the fourth three-dimensional reticular structure and the fifth three-dimensional reticular structure are different three-dimensional reticular structures respectively.
Further, the first three-dimensional net-shaped structure comprises a plurality of rows of first openings which are uniformly distributed along the arch radian direction; the first open pores have an open pore ratio of 40% in the first three-dimensional mesh structure.
Further, the second three-dimensional net structure is formed by connecting a plurality of second frames with each other, a plurality of second openings are arranged on the second three-dimensional net structure, and the opening rate of the second openings in the second three-dimensional net structure is 60%.
Further, the third three-dimensional net structure is formed by connecting a plurality of third frames with each other, a plurality of third openings are arranged on the third three-dimensional net structure, and the opening rate of the third openings in the third three-dimensional net structure is 50%.
Further, the fourth three-dimensional net structure is formed by connecting a plurality of fourth frames with each other, a plurality of fourth openings are formed in the fourth three-dimensional net structure, and the opening rate of the fourth openings in the fourth three-dimensional net structure is 50%.
Further, the fifth three-dimensional net structure is formed by connecting a plurality of fifth frames with each other, a plurality of fifth openings are arranged on the fifth three-dimensional net structure, and the opening rate of the fifth openings in the fifth three-dimensional net structure is 50%.
Further, the bottom layer is made of high-molecular thermoplastic polyurethane elastomer powder materials through integrated printing by a 3D printing technology.
Further, the maximum thickness of the bottom layer is 8-12mm, and the minimum thickness is 2 mm.
Furthermore, the sole treading device also comprises a surface layer used for treading the sole, and the surface layer covers the upper surface of the bottom layer.
Further, the material of the surface layer is ethylene-vinyl acetate copolymer, and the thickness of the surface layer is 1-2 mm.
The utility model discloses a 3D prints orthopedic shoe-pad, its bottom that is used for carrying out foot treatment to the sole includes the arch of foot district to the different positions of sole respectively, the toe district, the sole prefrontal area, sole middle district and heel district, five regional industrial grade 3D printer integral types of printing and form a body structure, and five regional atress circumstances and the difference of treatment demand to the different positions of sole, the correspondence relates to different three-dimensional network structure, thereby form the acceptance point that designs into the difference to the different positions of sole, it is more even to make the atress, and is more reasonable, thereby reduce the patient of sole disease of sole when wearing orthopedic shoe-pad, because of the unbalanced other side effects that produce of local atress.
Drawings
Fig. 1 is a schematic structural view of the 3D printing orthopedic insole of the present invention;
fig. 2 is a schematic structural diagram of a bottom layer of the 3D printing orthopedic insole of the present invention;
FIG. 3 is a schematic structural view of a first three-dimensional network structure of the bottom layer shown in FIG. 2;
FIG. 4 is a schematic structural view of a second three-dimensional network structure of the bottom layer shown in FIG. 2;
FIG. 5 is a schematic structural view of a third three-dimensional network structure of the bottom layer shown in FIG. 2;
FIG. 6 is a schematic structural view of a fourth three-dimensional mesh structure of the bottom layer shown in FIG. 2;
fig. 7 is a schematic structural view of a fifth three-dimensional net structure of the bottom layer shown in fig. 2.
Detailed Description
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and simplification of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1, the 3D printing orthopedic insole of the present invention comprises a bottom layer 1 for treating the sole of foot and a surface layer 2 for treading the sole of foot, wherein the surface layer 2 covers the upper surface of the bottom layer 1. Wherein, the bottom layer 1 is made of high-molecular thermoplastic polyurethane elastomer powder material with high toughness, and the surface layer 2 is made of ethylene-vinyl acetate copolymer (also called ethylene/vinyl acetate copolymer).
As shown in fig. 2, the bottom layer 1 includes an arch region 11 for supporting an arch of the foot, and the region of the bottom layer 1 excluding the arch region 11 is divided into a toe region 12, a forefoot region 13, a middle sole region 14, and a heel region 15 in order from a toe portion to a heel portion of the foot in a length direction of the foot. Wherein, the arch region 11, the toe region 12, the sole front region 13, the sole middle region 14 and the heel region 15 are integrally printed by an industrial grade 3D printer to form an integral structure, so that the production is convenient, and the five regions can be prevented from being separated from each other.
The arch region 11 is provided with a first three-dimensional net structure, the toe region 12 is provided with a second three-dimensional net structure, the forefoot front region 13 is provided with a third three-dimensional net structure, the sole middle region 14 is provided with a fourth three-dimensional net structure, and the heel region 15 is provided with a fifth three-dimensional net structure. The first three-dimensional net structure, the second three-dimensional net structure, the third three-dimensional net structure, the fourth three-dimensional net structure and the fifth three-dimensional net structure are different three-dimensional net structures respectively, different acceptance points can be designed aiming at different parts of the sole of a foot, so that the stress is more uniform and more reasonable, and other side effects caused by unbalanced local stress when a patient with sole diseases of the sole of the foot wears the orthopedic insole are reduced.
Specifically, the arch region 11 of the plastic insole is the main treatment and support region, and the arch of foot collapses or is flat for the patient, and needs to be strongly supported in the arch region 11 (longitudinal arch), therefore, the first three-dimensional net structure of the arch region 11 of the present invention, as shown in fig. 3, includes a plurality of rows of first openings 111 uniformly arranged along the direction of arch radian. The first opening 111 may be a circular hole perpendicular to the sole, and the diameter of the circular hole may be 8mm, which may play a role in reducing weight and ventilating. The other structures than the first opening 111 constitute a body portion of the support, and the opening ratio of the first opening 111 in the first three-dimensional net structure is made 40%.
The utility model discloses a toe district 12's three-dimensional network structure of second, including a plurality of second frames 121, and constitute by a plurality of second frames 121 interconnect, as shown in fig. 4, second frame 121 is diamond-like 20% relative density structure, every second frame 121 includes five second summits and four second lines, regard a second summit among them as the second central point, other four second summits are located the sphere that uses this second central point as the centre of sphere, and make the central angle between two adjacent second summits that are located on the sphere be 120, be provided with a second line between each second summit that is located on the sphere and the second summit that is the second central point. Specifically, the distance between each second vertex is 0.25mm, the diameter of each second vertex is 1.2mm, and a pair of corresponding second vertices of each two second frames 121 in the plurality of second frames 121 are connected to each other to form a second three-dimensional mesh structure, such that the second three-dimensional mesh structure has a plurality of second openings 122, and the opening ratio of the second openings 122 in the second three-dimensional mesh structure is 60%. Because the pressure on the front end of the toe is smaller, the second three-dimensional net structure is adopted, and the toe has good air permeability and portability.
The third three-dimensional net structure of the forefoot frontal area 13 of the present invention includes a plurality of third frames 131, and is formed by connecting a plurality of third frames 131 to each other, as shown in fig. 5, the third frames 131 are diagonal structures of the joint circles, wherein the distance between two adjacent joint circles is 13mm, and the width of the connecting portion between two joint circles is 1-3 mm. The third frames 131 are connected to each other to form a second three-dimensional mesh structure, such that the second three-dimensional mesh structure has a plurality of third openings 132, and the opening ratio of the third openings 132 in the third three-dimensional mesh structure is 50%. Because the stress of the forefoot front area 13 is slightly larger, and the rolling part is the position for foot walking and the position for supporting the transverse arch of the foot, a thicker and flat structural unit is adopted, and the sole has good stress deformability and toughness. In addition, forefoot region 13 is resistant to fatigue because it is intended to flex continuously during walking.
The utility model discloses a middle area 14's fourth three-dimensional network structure in sole, including a plurality of fourth frames 141, and constitute by a plurality of fourth frames 141 interconnect, as shown in fig. 6, fourth frame 141 is cube type frame, specifically, fourth frame 141 includes seven fourth summits and six fourth lines, regard a fourth summit among them as the fourth central point, six fourth summits are located on the sphere that uses this fourth central point as the centre of sphere in addition, and make the central angle that is located between two adjacent fourth summits on the sphere be 90, be provided with a fourth line between each fourth summit that is located on the sphere and the fourth summit as the fourth central point. A pair of corresponding fourth vertices of every two fourth frames 141 in the plurality of fourth frames 141 are connected to each other to form a fourth three-dimensional mesh structure, such that the fourth three-dimensional mesh structure has a plurality of fourth openings 142, and an opening rate of the fourth openings 142 in the fourth three-dimensional mesh structure is 50%. The fourth three-dimensional net structure is used at the outer side of the middle part of the sole of a foot, can bear larger body weight without deformation, and has the characteristics of light weight, good air permeability and the like.
The utility model discloses a fifth three-dimensional network structure of heel district 15, including a plurality of fifth frames 151 to constitute by a plurality of fifth frames 151 interconnect, as shown in fig. 7, fifth frame 151 is equilateral tetradecahedron structure, and two adjacent equilateral tetradecahedron frames link together through the side coplane that corresponds, form fifth three-dimensional network structure. Each of the equilateral tetradecahedrons is configured to be a hollow structure, so that each of the equilateral tetradecahedrons forms a fifth opening 152, and the opening ratio of the fifth opening 152 in the fifth three-dimensional net structure is 20%. As the heel part is a supporting point of which the weight of the human body reflects the maximum stress of the sole, the fifth three-dimensional net structure is adopted, and a good supporting effect can be achieved. In addition, the hexahedron structure can be used for Boolean operation to obtain partial pores, so that the weight of the insole is reduced, and the air permeability of the insole is improved.
In the embodiment of the present invention, the maximum thickness of the bottom layer 1 in the sole direction depends on the maximum thickness required for the treatment and support of the arch part, and is generally 8-12mm, and the minimum thickness is 2 mm. The thickest place is at the edge of arch region 11, since this is where the longitudinal arch of the supporting foot is highest. The thinnest area is in the toe region 12, which serves to provide a smooth transition and overall aesthetics and at the same time can serve to limit the sliding of the insole inside the shoe, so the toe region 12 need not be too thick. The maximum thickness of the insole in the sole width direction is also at the edge of the arch region 11, the minimum thickness being the junction of the forefoot region 13 and the midfoot region 14. In the embodiment of the present invention, the thickness of the surface layer 2 is 1-2mm, and the material is ethylene-vinyl acetate copolymer, so the contact feeling of the sole of the foot is more comfortable.
The utility model discloses a preparation flow of orthopedic shoe-pad of 3D printing does:
1. and analyzing the distribution and stress condition of the sole pressure by using a sole pressure analyzer to obtain an analysis result.
2. Structural units corresponding to the parts of the sole (i.e., the regions of the bottom layer 1) are selected from the library of known mechanical structural units based on the analysis results.
3. And (5) three-dimensionally scanning the foot shape, and designing the insole according to the selected structural units.
4. And printing the bottom layer 1 of the orthopedic insole by using a 3D printing mode.
To sum up, the utility model discloses 3D prints orthopedic shoe-pad can be at sole different atress positions, according to the requirement of treatment, the result that utilizes plantar pressure analysis appearance's data acquisition to obtain, the constitutional unit who chooses in the different regions respectively according to known mechanics constitutional unit storehouse designs, utilize 3D to print the bottom 1 that supports the orthopedic shoe-pad of integration at last, the atress that can make the focus position carries out the scientific distribution after the accurate calculation, thereby satisfy the gas permeability, when the portability, decomposition pressure that can be better, the effect and the travelling comfort and the durability of treatment have been improved, reach and accord with the treatment requirement. Because the utility model discloses a 3D prints orthopedic shoe-pad carries out the pertinence according to the atress condition in sole different regions and relates to, consequently can make the atress more even, reasonable, reduces the patient of plantar disease when wearing orthopedic shoe-pad, because of local atress is unbalanced and other side effects that produce.
Above, only for the schematic description of the present invention, it should be known to those skilled in the art that the present invention can be modified in various ways without deviating from the working principle of the present invention, and this all belongs to the protection scope of the present invention.
Claims (10)
1. A3D printing orthopedic insole comprises a bottom layer for foot treatment of a sole, and is characterized in that the bottom layer comprises an arch area for supporting the arch of the sole, the area of the bottom layer except the arch area is divided into a toe area, a sole front area, a sole middle area and a heel area from the toe part to the heel part of the sole in sequence according to the length direction of the sole, and the arch area, the toe area, the sole front area, the sole middle area and the heel area are of an integrated structure; wherein,
the foot arch area is provided with a first three-dimensional reticular structure, the toe area is provided with a second three-dimensional reticular structure, the front sole area is provided with a third three-dimensional reticular structure, the middle sole area is provided with a fourth three-dimensional reticular structure, the heel area is provided with a fifth three-dimensional reticular structure, and the first three-dimensional reticular structure, the second three-dimensional reticular structure, the third three-dimensional reticular structure, the fourth three-dimensional reticular structure and the fifth three-dimensional reticular structure are different three-dimensional reticular structures respectively.
2. The 3D printed orthopedic insole of claim 1, wherein the first tridimensional net structure comprises a plurality of columns of first apertures uniformly arranged along the direction of the arch curvature; the first open pores have an open pore ratio of 40% in the first three-dimensional mesh structure.
3. The 3D printed orthopedic insole according to claim 1, wherein the second three-dimensional mesh structure is formed by connecting a plurality of second frames to each other, and a plurality of second openings are formed on the second three-dimensional mesh structure, and the opening ratio of the second openings in the second three-dimensional mesh structure is 60%.
4. The 3D printed orthopedic insole according to claim 1, wherein the third three-dimensional mesh structure is formed by connecting a plurality of third frames to each other, a plurality of third openings are formed on the third three-dimensional mesh structure, and the opening ratio of the third openings in the third three-dimensional mesh structure is 50%.
5. The 3D printed orthopedic insole according to claim 1, wherein the fourth three-dimensional mesh structure is formed by a plurality of fourth frames connected with each other, a plurality of fourth openings are formed on the fourth three-dimensional mesh structure, and the opening ratio of the fourth openings in the fourth three-dimensional mesh structure is 50%.
6. The 3D printed orthopedic insole according to claim 1, wherein the fifth three-dimensional mesh structure is formed by connecting a plurality of fifth frames, a plurality of fifth openings are formed on the fifth three-dimensional mesh structure, and the opening ratio of the fifth openings in the fifth three-dimensional mesh structure is 50%.
7. The 3D printing orthopedic insole according to claim 1, wherein the bottom layer is made of a high molecular thermoplastic polyurethane elastomer powder material integrally printed by a 3D printing technology.
8. The 3D printed orthopedic insole of claim 1, wherein the bottom layer has a maximum thickness of 8-12mm and a minimum thickness of 2 mm.
9. The 3D printed orthopedic insole of claim 1, further comprising a surface layer for the sole tread, the surface layer overlying an upper surface of the bottom layer.
10. The 3D printed orthopedic insole of claim 9, wherein the material of the skin layer is ethylene vinyl acetate copolymer, and the thickness of the skin layer is 1-2 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721682918.4U CN208799389U (en) | 2017-12-06 | 2017-12-06 | A kind of 3D printing orthopedic insoles |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721682918.4U CN208799389U (en) | 2017-12-06 | 2017-12-06 | A kind of 3D printing orthopedic insoles |
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| CN208799389U true CN208799389U (en) | 2019-04-30 |
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| CN201721682918.4U Active CN208799389U (en) | 2017-12-06 | 2017-12-06 | A kind of 3D printing orthopedic insoles |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112716103A (en) * | 2020-12-29 | 2021-04-30 | 国家康复辅具研究中心 | Porous variable-rigidity diabetic foot pressure-reducing insole and preparation method thereof |
| CN113303550A (en) * | 2021-06-04 | 2021-08-27 | 贵阳市第四人民医院 | Diabetic foot shoes and preparation method thereof |
-
2017
- 2017-12-06 CN CN201721682918.4U patent/CN208799389U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112716103A (en) * | 2020-12-29 | 2021-04-30 | 国家康复辅具研究中心 | Porous variable-rigidity diabetic foot pressure-reducing insole and preparation method thereof |
| CN112716103B (en) * | 2020-12-29 | 2022-04-15 | 国家康复辅具研究中心 | Porous variable stiffness diabetic foot decompression insole and preparation method thereof |
| CN113303550A (en) * | 2021-06-04 | 2021-08-27 | 贵阳市第四人民医院 | Diabetic foot shoes and preparation method thereof |
| CN113303550B (en) * | 2021-06-04 | 2023-04-07 | 贵阳市第四人民医院 | A diabetic foot shoe for patients with phalangeal joint fusion and its preparation method |
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Address after: 410000 floor 30, block a, Qiancheng building, No. 423, Shuyuan South Road, Tianxin District, Changsha City, Hunan Province Patentee after: Hunan Huaxiang Medical Technology Co.,Ltd. Address before: 410000 floor 30, block a, Qiancheng building, No. 423, Shuyuan South Road, Tianxin District, Changsha City, Hunan Province Patentee before: HUNAN HUAXIANG ZENGLIANG TECHNOLOGY CO.,LTD. |
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