CN115444649A

CN115444649A - Method for producing a foot orthotic and foot orthotic

Info

Publication number: CN115444649A
Application number: CN202110642740.5A
Authority: CN
Inventors: 姚志锋; 李杨; 李威
Original assignee: Qingfeng Beijing Technology Co Ltd
Current assignee: Luxcreo Beijing Inc
Priority date: 2021-06-09
Filing date: 2021-06-09
Publication date: 2022-12-09
Also published as: WO2022257626A1; TW202247820A

Abstract

A method of manufacturing a foot orthotic and a foot orthotic are disclosed, the method of manufacturing comprising the steps of: acquiring user information; the user information comprises sole information of a foot to be corrected of a user; the sole information comprises arch information and foot length information; determining at least two correction periods based on the user information; and determining a correction piece model corresponding to at least one correction period based on the user information.

Description

Method for producing a foot orthotic and foot orthotic

Technical Field

This application relates to the field of foot orthotics, and more particularly to methods of making foot orthotics and foot orthotics.

Background

The foot is an important component of a human motion system, and under normal conditions, when the foot is in contact with the ground in the motion process, the stress of the foot is normally distributed at each position of the sole in different motion stages, so that power is provided for human motion, and the smooth completion of the motion is guaranteed. However, under the influence of common factors such as lack of exercise, sedentary sitting, bad posture and the like, the abnormal foot structure of the feet of the human body is more and more frequent.

Abnormal foot structure can lead to uneven foot stress, pressure is concentrated on a certain area of the foot to generate pain, the activity of the human body is influenced, and a compensation mechanism is promoted to form to make up for the reduction of the activity caused by the change of the foot structure, the abnormal function and the loss of the ankle. For example, flat foot is a common foot structure abnormality characterized by low or absent arch. The arch of the flat foot collapses when standing or walking, which can cause pain to the foot.

The foot correction piece is the abnormal therapeutic instrument of foot structure, and it can adjust sole heavy burden point position, shifts foot atress concentration point, provides the atress compensation to the unusual position of foot atress, and reasonable dispersion plantar pressure reaches and reduces painful effect, but in the correction process, the user can feel very uncomfortable.

Therefore, how to manufacture a foot correction device to reduce the discomfort of a user is a technical problem to be solved in the art.

Disclosure of Invention

In one aspect, one of the embodiments of the present application provides a method of manufacturing a foot orthotic, the method comprising the steps of: acquiring user information; the user information comprises sole information of a foot to be corrected of a user; the sole information comprises arch information and foot length information; determining at least two correction periods based on the user information; and determining a correction piece model corresponding to at least one correction period based on the user information.

In another aspect, an embodiment of the present application further provides a foot orthotic manufactured by the manufacturing method of any of the above aspects.

Drawings

The present application will be further explained by way of exemplary embodiments, which will be described in detail by way of the accompanying drawings. These embodiments are not intended to be limiting, and in these embodiments like numerals are used to indicate like structures, wherein:

FIG. 1 is a schematic illustration of a foot orthotic according to some embodiments of the present application;

FIG. 2 is a flow chart of a method of manufacturing a foot orthotic, according to some embodiments of the present application;

FIG. 3 is a flow chart of a method of determining a period of correction according to some embodiments of the present application;

FIG. 4 is a flow chart of a method of determining a correction model according to some embodiments of the present application;

FIG. 5 is a flow chart of a method of determining a correction model according to further embodiments of the present application;

FIG. 6A is a schematic plantar contour view of a normal foot according to some embodiments of the present application;

FIG. 6B is a schematic view of the plantar contour of a flat foot according to some embodiments of the present application.

Detailed Description

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are only examples or embodiments of the application, and that for a person skilled in the art the application can also be applied to other similar contexts on the basis of these drawings without inventive effort. Unless otherwise apparent from the context, or otherwise indicated, like reference numbers in the figures refer to the same structure or operation.

As used in this application and the appended claims, the terms "a," "an," "the," and/or "the" are not intended to be inclusive in the singular, but rather are intended to be inclusive in the plural unless the context clearly dictates otherwise. In general, the terms "comprises" and "comprising" merely indicate that steps and elements are included which are explicitly identified, that the steps and elements do not form an exclusive list, and that a method or apparatus may include other steps or elements.

Flow charts are used herein to illustrate operations performed by systems according to embodiments of the present application. It should be understood that the preceding or following operations are not necessarily performed in the exact order in which they are performed. Rather, the various steps may be processed in reverse order or simultaneously. Meanwhile, other operations may be added to the processes, or a certain step or several steps of operations may be removed from the processes.

A foot orthotic is an orthotic treatment for correcting anatomical abnormalities of the foot. Figure 1 is a schematic diagram of a foot orthotic, according to some embodiments of the present application. As shown in fig. 1, the foot-correcting member is a correcting insole for correcting flat feet. The orthotic insole may include a forefoot portion 110, an arch support 120, and a heel portion 130 arranged in a front-to-rear order. It will be appreciated that when the user uses the orthotic insole, the ball of the user's foot may be located correspondingly at the ball 110 of the orthotic insole, the arch of the user's foot may be located correspondingly at the arch support 120 of the orthotic insole, and the heel of the user's foot may be located correspondingly at the heel 130 of the orthotic insole. In some embodiments, the orthotic may be a shoe for orthotic the foot, and the insole used in the shoe may have a similar configuration to the orthotic insole shown in fig. 1.

In some embodiments, the height b of arch support 120 (i.e., the vertical distance between the highest point of arch support 120 and the bottom surface of the orthotic insole) may be greater than the height a of the forefoot portion 110 (i.e., the vertical distance between the highest point of the forefoot portion 110 and the bottom surface of the orthotic insole) and the height c of the heel portion 130 (i.e., the vertical distance between the highest point of the heel portion 130 and the bottom surface of the orthotic insole). The height of the forefoot, a, the height of the arch support 120, b, and the height of the heel 130, c, may be understood as the height of the orthotic insole when uncompressed (i.e., when not worn). The shape and height of arch support 130 may be determined based on orthotic-related information of the user's foot (e.g., foot length information, arch information, etc., as described below). The arch support 130 of the orthotic insole may contact and provide support to the arch of the user's foot during the orthotic process to improve the force profile of the arch and to change the shape of the arch.

In some embodiments, the foot orthotic may be prefabricated. For example, corresponding types of foot orthotics may be directly produced according to common foot deformity classifications. In some embodiments, the foot orthotic may be customized. For example, a plantar orthotic corresponding to a user's plantar deformity classification and plantar information may be manufactured based on the user's plantar information (e.g., arch information, foot length information). Taking a foot correction member classified by plantar deformity as flat foot as an example, a foot correction member capable of compensating the height difference between the user's arch and the normal arch can be designed and manufactured based on the arch height and the normal arch height of the user, and the foot correction member can be used for providing stress compensation for the stressed part of the sole. However, the force compensation provided by the foot correction part designed and manufactured by the method on the force bearing part of the sole is very hard, so that a user feels severe pain when using the foot correction part and is difficult to persist in using the foot correction part.

In some embodiments, correction of foot structure abnormalities may be achieved in stages. The foot-correcting members with different correction amounts can be correspondingly used in each correction stage, so that the foot-correcting members used in each stage can ensure better correction effect and relieve the pain of users. Some embodiments of the present application provide a method of manufacturing a foot orthotic that may determine at least two orthotic cycles based on user information (e.g., arch information) and determine an orthotic model for at least one cycle based on the user information (e.g., arch information and foot length information). Through dividing the correction process into a plurality of correction periods, and determining a correction piece model of at least one correction period, the foot correction piece generated based on the correction piece model can correct the foot stage by stage, so that the pain of the user in each correction period is greatly reduced, the user experience is improved, the user can use the foot correction piece more likely to insist, and the correction effect is ensured.

The staged foot orthotic manufacturing method may be used to manufacture flat-foot, everted-foot orthotics, as well as hallux valgus and pronation orthotics. In some embodiments, the staged orthotic manufacturing method may also be used for other part orthotics, for example, staged cervical spine orthotics may also be manufactured, and staged lumbar spine orthotics may also be manufactured.

Fig. 2 is an exemplary flow diagram of a method of manufacturing a foot orthotic, according to some embodiments herein, as shown in fig. 2, the process 200 may include the steps of:

step 210, user information is obtained. The user information comprises sole information of a foot to be corrected of a user, and the sole information comprises arch information and foot length information.

User information may be understood as information relating to the correction of the foot of a user wearing the foot orthotic. In some embodiments, the user information may include plantar information of the user's foot to be corrected. The sole information may be understood as information reflecting at least one of the size, contour, stress condition, and the like of the sole (including the front sole, the arch, the heel, and the like).

The plantar information may include arch information and foot length information. The arch information may be understood as related information capable of reflecting the form of the arch. The arch information may include height information of the arch, shape information of the arch, and the like. In some embodiments, the arch height information may include the height of one or more locations of the arch of the foot to be corrected. In some embodiments, the arch height information may include the height of the highest point of the arch of the foot to be corrected (i.e., the maximum height of the arch). In some embodiments, the shape information of the arch may include contour data of the arch. The foot length information may be understood as information related to the length of the user's foot. In some embodiments, the foot length information may include a length of the foot, which may be a distance from a forward-most end of the foot (forward end of the front toe) to a rearward-most end of the foot (rearward end of the rear heel). In some embodiments, the foot length information may also include shoe size information (e.g., 38 size, 42 size, etc.) corresponding to the user's foot.

In some embodiments, the sole information may further include at least one of sole shape information, sole pressure information, gait information, and sole injury location information. The sole shape information may reflect information of the outer contour of the sole. For example, fig. 6A shows the outer contour of the sole of a normal foot, and fig. 6B shows the outer contour of the sole of a foot to be corrected with a flat foot. The sole pressure information can reflect the pressure value of each area of the sole when a user stands normally. The gait information may reflect the shape of the feet of the user when walking, for example, the angle between the feet and the ground. The plantar injury location information may reflect the specific location of the plantar injury region of the foot to be corrected.

In some embodiments, the user information may further include at least one of a full foot information of the foot to be corrected, a user demand information, and a user weight information. The full foot information may be understood as information reflecting the size, contour, stress situation, etc. of the full foot. For example, dimensions of a full foot may include an instep height dimension, a thumb height dimension, a heel width dimension, and the like. As another example, the contour of the full foot may include a three-dimensional contour of the full foot. The stress conditions of the full foot may include the magnitude of the stress during walking and standing in various areas of the foot. The user demand information can be understood as personalized demand information of a user wearing the foot correction piece in the correction process. For example, the user demand information may include information on a correction time desired by the user, a correction strength that the user can endure, and the like. The weight information of the user may influence to a large extent the pressure to which the parts of the sole of the foot to be corrected are subjected. In some embodiments, the user information may also include gender, height, age, disease history, etc. information of the user.

In some embodiments, the method of obtaining plantar and/or total foot information may be manual measurements, and the measured plantar and/or total foot information related data may be manually input into a processing device (e.g., a computer that performs the orthotic model construction). The manual measurement may be manually measuring the user's foot with a measuring tool, wherein the measuring tool may comprise a ruler, a tape measure, a vernier caliper, or the like. In other embodiments, the plantar and full foot information may be obtained by machine measurements performed by a measurement device, which may transmit (e.g., via a network) the measured data to a processing device (e.g., a computer that performs the orthotic model construction). In particular, the measuring device may capture or scan the user's foot to obtain two-dimensional and/or three-dimensional images of the user's foot to obtain the contours of the sole of the foot and/or the three-dimensional contours of the full foot. In some embodiments, the measurement device may also determine plantar information and full foot information based on two-dimensional images and/or three-dimensional images of the user's foot, or send the two-dimensional images and/or three-dimensional images to an associated processing device for further processing to obtain foot length information, plantar shape information, full foot shape information, and the like of the user. In some embodiments, the measurement device may be a photographing device or a scanning device, or the like. The capture device may include a digital camera, an infrared camera, a low light camera, a thermal imaging camera, or other device capable of visual recording. The scanning device may include a three-dimensional scanner (e.g., a laser scanner, a three-dimensional photographic scanner, etc.), an ultrasound imaging device, and the like.

In some embodiments, the method of obtaining user demand information may be based on a user's dictation, entered by an operator at a processing device (e.g., a computer performing the orthotic model construction). In other embodiments, the method for acquiring the user requirement information may also be that the user enters the information at a terminal device (for example, a mobile phone or a personal computer of the user) by himself, and then the terminal device transmits the user requirement information (for example, transmits the user requirement information through a wired or wireless network) to a processing device (for example, a computer for constructing the correction element model). In some embodiments, the method of obtaining weight information of a user may be by a weighing device (e.g., a weight scale) measuring and then entering by an operator at a processing device (e.g., a computer performing orthotic model building), or the weighing device transmitting (e.g., via a wired or wireless network) the weight information of the user to the processing device (e.g., a computer performing orthotic model building).

In step 210, the user information may be measured in real time. Alternatively, the user information may be pre-stored in the storage device, and acquiring the user information may refer to calling the user information in the storage device.

Based on the user information, at least two correction periods are determined, step 220.

The determination of the at least two correction cycles may be a determination of a specific number of correction cycles, and the number of correction cycles is at least two. In some embodiments, the at least two corrective cycles may be two, three, five, seven, etc. number of corrective cycles. The user may use different foot orthotics for different orthotic cycles, which may correspond to foot orthotics of different orthotic amplitudes.

In some embodiments, the specific number of corrective cycles may be determined based at least on arch information. For example, after determining the maximum height of the arch, when the maximum height of the arch of the foot to be corrected is larger than the normal maximum height of the arch of the foot to be corrected (for example, the difference is larger than a preset difference threshold), which indicates that the arch collapse problem of the user is more serious, the number of correction cycles may be set to be larger, for example, the number of correction cycles is set to be five, seven, or the like. For another example, when the difference between the maximum height of the arch of the foot to be corrected and the normal maximum height of the arch of the foot to be corrected is small (for example, the difference is smaller than or equal to the preset difference threshold), which indicates that the arch collapse problem of the user is slight, the number of correction cycles may be set to be small, such as setting the number of correction cycles to be two, three, or the like. In some embodiments, the number of remediation cycles may be adjusted based on user demand information. For example, if the user is able to tolerate less correction (i.e., the user's pain threshold is lower), the number of correction cycles is increased.

In other embodiments, at least two correction cycles may be determined based on arch information by the method shown in fig. 3, which is described in connection with fig. 3.

And step 230, determining a correction piece model corresponding to at least one correction period based on the user information.

In some embodiments, a orthotic model corresponding to at least one orthotic cycle may be determined based on at least the arch information and the foot length information. A model of an orthotic may be understood as a three-dimensional digital model of an orthotic. Different orthotic cycles may correspond to different orthotic models. In some embodiments, the associated dimensional data for the orthotic model may be determined based on the arch information and the foot length information, and then the orthotic model may be determined based on the associated dimensional data for the orthotic model. Taking a flat-foot corrective insole as an example, the length of the corrective insole may be determined based on foot length information and the thickness of the arch support 120 of the corrective insole may be determined based on arch information. Other data for the corrective insole, such as the thickness of the forefoot portion 110 and the heel portion 130, etc., may be determined based on empirical data. In other embodiments, the orthotic model may also be determined based on the method shown in fig. 4, with particular reference to the associated description of fig. 4.

The correction piece model can be constructed by a designer through manual drawing in modeling software based on user information (such as arch information and foot length information), can be automatically generated by a computer through a related algorithm stored in the computer based on the user information, and can be obtained by further adjusting by the designer after the computer automatically generates a preliminary model. For example only, after obtaining the relevant dimension data of the orthotic model, the designer may draw the corresponding orthotic model in the modeling software in equal proportion according to the relevant dimension data of the orthotic model. Alternatively, after obtaining an initial model of the foot orthotic (e.g., a model of a normal insole), the designer may make adjustments to the initial model based on the associated dimensional data for the orthotic model to obtain an orthotic model (e.g., a model of an orthotic insole). In some embodiments, the modeling software may include Rhino, solidworks, catia, or UG, among others.

In some embodiments, a plurality of orthotic models adapted to different user information (such as arch information and foot length information) may be pre-stored in the database, and when the user information of the foot to be corrected is obtained, an orthotic model adapted to the foot to be corrected may be selected from the plurality of orthotic models.

In some embodiments, the orthotic model may be determined based on a three-dimensional profile model of the orthotic. In some embodiments, the three-dimensional contour model of the orthotic may be determined based on the user information, and then the hollow mesh may be constructed based on the three-dimensional contour model, thereby obtaining the orthotic model. See fig. 5 for a related discussion of a method of determining a model of an orthotic.

In some embodiments, determining a orthotic model corresponding to at least one orthotic cycle may include determining an orthotic model for one orthotic cycle. In other embodiments, determining a orthotic model for at least one orthotic cycle may include determining an orthotic model for two orthotic cycles. In still other embodiments, determining a orthotic model corresponding to at least one orthotic cycle includes determining an orthotic model for at least three orthotic cycles (e.g., all orthotic cycles).

In some embodiments, the orthotic model for one cycle may be determined first, and the orthotic models for the remaining correction cycles may be determined after the user wears the orthotic model.

In some embodiments, step 230 may include the steps of: determining a correction piece model corresponding to a correction period based on user information; acquiring correction result information; and determining the correction piece models corresponding to the rest correction periods based on the correction result information.

In some embodiments, a orthotic model corresponding to a orthotic cycle may be determined based on arch information and foot length information. In some embodiments, the correction piece model corresponding to the one correction cycle may be adjusted based on one or more of sole shape information, sole pressure information, gait information, sole injury position information, full foot information, user demand information, and user weight information. The orthotic outcome information is used to reflect an outcome of orthotic of the foot to be orthotic after at least one cycle of wearing the foot orthotic. The orthotic outcome information may include arch information for the user after wearing the foot orthotic for at least one orthotic cycle. In some embodiments, the corrective outcome information may also include other plantar information after the user wears the plantar orthotic for at least one correction cycle. In some embodiments, the correction result information may include one or more of foot length information, foot sole shape information, foot sole pressure information, gait information, and foot sole injury position information after the user wears the foot sole correction member for at least one correction cycle. In some embodiments, the orthotic outcome information may further include full foot information after the user wears the plantar orthotic for at least one orthotic cycle. For the relevant description of the foot length information, the sole shape information, the sole pressure information, the gait information, the sole damage position information, the full foot information, the user weight information, etc., please refer to the relevant content about the user information in step 210.

In some embodiments, the correction result information may further include user experience feedback information, i.e., subjective feeling information fed back by the user after wearing. For example, if the user feels the arch height too high after wearing the orthotic, the discomfort is severe when using the orthotic. At this time, the number of correction cycles and the single correction amount corresponding to the remaining correction cycles may be adjusted based on the user experience feedback information (see the related content of fig. 4 for a related description of the single correction amount). Or, if the user feels that the hardness of the correction piece is too high after wearing the correction piece, and the user feels that the pain is severe when using the correction piece, the hardness of the foot correction piece corresponding to the rest correction periods may be adjusted based on the user experience feedback information (see the relevant content of fig. 6 for a description of the hardness of the foot correction piece).

In some embodiments, the orthotic model for the next orthotic cycle (e.g., the second orthotic cycle) may be determined based on the orthotic outcome information, and after the user wears the sole orthotic for the next orthotic cycle, the orthotic outcome information (e.g., the arch information of the user wearing the foot orthotic for the second orthotic cycle) may be obtained again, and the orthotic models for the remaining one or more orthotic cycles may be determined based on the orthotic outcome information. In other embodiments, the orthotic model may be determined directly for the remaining plurality of orthotic cycles based on the orthotic outcome information.

In some embodiments, the correction result information (including arch information, plantar shape information, plantar pressure information, gait information, plantar injury location information, full foot information, etc.) may be determined based on measurements of the arch size of the user's foot after wearing the foot orthotic for one correction cycle. That is, the arch information of the user wearing the foot orthotic for one orthotic cycle may be determined from measurements taken of the arch of the user wearing the orthotic for one orthotic cycle. The measurement of the specific relevant information in the correction result information may be measured according to the measurement method of the corresponding information in step 210.

In some embodiments, the orthotic outcome information may be determined based on predicted data for the size of the arch of the foot after the user wears the foot orthotic for one orthotic cycle. That is, the arch information of the foot orthotic worn by the user for one orthotic cycle may be determined based on a prediction of arch information for the foot to be orthotic and information regarding the size (e.g., arch height) of the foot orthotic for the one cycle. In some embodiments, the prediction data may be determined using simulation software based on information such as arch information for the foot to be corrected and the associated dimensions (e.g., arch height) of the foot orthotic for the previous cycle. By way of example only, plantar pressure data (such as a plantar pressure distribution map) of the foot to be corrected after the foot correcting piece (such as a correcting insole) is used can be predicted in a simulation mode based on arch information (such as arch height, plantar pressure data and the like) of the foot to be corrected and relevant dimensions (such as height of an arch support of the correcting insole, hardness of the arch support and the like) of the foot correcting piece in one correcting period, and correction result information can be determined through the plantar pressure data predicted in the simulation mode, so that the correction effect of the one correcting period can be determined.

In some embodiments, the orthotic model may be adjusted and modified based on plantar shape information, plantar pressure information, gait information, plantar injury location information, and the like of the plantar information. In some embodiments, the height and contour of the forefoot, arch support, and/or arch support of a foot orthotic (e.g., orthotic insole) may be adjusted based on one or more of plantar shape information, plantar pressure information, and gait information. In some embodiments, the degree of softness (e.g., hardness value) of various areas on a foot orthotic (e.g., orthotic insole) may be adjusted based on plantar lesion location information. For example, the stiffness of the foot orthotic may be reduced in areas corresponding to locations of plantar injuries. In some embodiments, when the foot orthotic is a shoe, the overall shoe sizing may be based on full foot information, for example, the upper height may be designed based on instep height. For another example, the sole width may be designed based on the forefoot width. In some embodiments, the individual corrections of the foot orthotic, the degree of softness (e.g., hardness value), etc. may be adjusted based on user demand information. In some embodiments, the degree of softness (hardness value) of the foot orthotic may be designed based on the user weight information. For example, the harder the user weighs, the stiffer the foot orthotic may be designed.

And 240, printing the foot correction piece corresponding to at least one correction period by using a 3D printing mode based on the correction piece model.

In some embodiments, the relevant dimensional data of the orthotic model may be transmitted to a 3D printing device or its associated processing software to enable 3D printing. In other embodiments, the graphic data of the correction piece model may be transmitted to a 3D printing device or its associated processing software to implement 3D printing.

The 3D printing method may include a photo-curing molding printing method, a fused deposition molding printing method, or a laser sintering printing method. The 3D printed material may be a bondable material such as powdered metal or resin. In some embodiments, the 3D printing device may be a photocuring 3D printer, a fused deposition 3D printer, a laser sintering 3D printer, or the like. The process software configured with the 3D printing device may include Cura, easyPrint3D, slic3r, netfabbbbasic, and the like.

Preferably, the 3D printing mode is selected to be a photocuring molding printing mode. The photo-curing molding printing mode has the advantages of high printing speed, high printing precision and the like. The photocurable imaged printing material may be selected to be a resin. The resin material has flexibility and elasticity, so that the plane product is easy to bend, and the elasticity requirement of the footwear product can be met.

For example only, for printing the foot orthotic by photocuring pattern printing, processing software (e.g., cura, easy print3D, slic3r, netfabbatic, etc.) associated with the 3D printer may divide the orthotic model of the orthotic model having a certain thickness into at least two cured layers in the thickness direction, and the photocuring printer may sequentially expose the at least two cured layers, and the thicknesses of the at least two cured layers may be the same or different. For example, the correction piece model may be divided into a first cured layer, a second cured layer, and a third cured layer, and the photo-curing printer may sequentially expose the first cured layer, the second cured layer, and the third cured layer, wherein the first cured layer is molded on the molding table of the printer, the second cured layer is molded on the molded first cured layer, and the third cured layer is molded on the molded second cured layer. The thicknesses of the first cured layer, the second cured layer, and the third cured layer may be the same, partially the same, or different. For example, the thickness of the first cured layer may be 1.5mm, the thickness of the second cured layer may be 1.0mm, and the thickness of the third cured layer may be 0.5mm. In some embodiments, the thickness of the first, second, and third cured layers may be 0.005mm to 2.0mm. In some embodiments, the thickness of the first, second, and third cured layers may be 0.01mm to 0.2mm.

By printing out the foot correction piece in a 3D printing mode, the size precision of the foot correction piece can be improved. In addition, even if a plurality of foot correction pieces corresponding to correction periods need to be manufactured for one foot to be corrected, a plurality of molds do not need to be prepared, the foot to be corrected can be manufactured conveniently and quickly, and the manufacturing cost is low. In some embodiments, the foot orthotic may comprise an elastic resin material. In some embodiments, the elastomeric resin material may be a combination of one or more of urethane acrylate, urethane (meth) acrylate, polyester acrylate, epoxy acrylate, thiourethane. In some embodiments, the elastomeric resin material may also be an elastomeric resin material having one or more components and capable of multiple curing. In some embodiments, the elastic resin material may also be an elastic resin material having dual components and capable of dual curing.

In some embodiments, the foot orthotic has a modulus of elasticity from 1MPa to 50MPa. For example, the modulus of elasticity of the foot orthotic may be 1Mpa, 10Mpa, 35Mpa, 50Mpa, or the like. Wherein, the elastic modulus refers to the value of stress divided by the strain in the direction under the action of unidirectional stress of the foot correction piece. The elastic modulus of the foot correction piece can measure the difficulty of the foot correction piece in elastic deformation, and the larger the elastic modulus is, the larger the stress of the foot correction piece in certain elastic deformation is. In some embodiments, the modulus of elasticity of the foot orthotic may be designed based on the weight of the user, e.g., the greater the weight of the user, the greater the modulus of elasticity of the foot orthotic may be designed.

In some embodiments, the foot orthotic has a tensile strength of 5MPa to 50MPa. For example, the tensile strength of the foot orthotic may be 5MPa, 205MPa, 45MPa, 50MPa, or the like. Wherein tensile strength refers to the maximum load capacity of the foot orthotic under static tension conditions. In some embodiments, the tensile strength of the foot orthotic may be designed based on the particular application scenario for the foot orthotic.

In some embodiments, the foot orthotic has an elongation at break of 50% to 60%. For example, the foot orthotic may have an elongation at break of 50%, 52%, 57%, 60%, etc. Wherein, the elongation at break refers to the ratio of the elongation length before and after stretching to the length before stretching when the foot correcting part is pulled apart under the action of external force. In some embodiments, the elongation-to-break of the foot orthotic may be designed based on the particular application scenario for the foot orthotic.

In some embodiments, the foot orthotic may be manufactured using hot press molding, injection molding, or the like, based on the orthotic model.

Fig. 3 is a flow chart of a method of determining a period of correction according to some embodiments of the present application. As shown in fig. 3, the process 300 may include the following steps:

and step 310, determining information of a normal foot corresponding to the foot to be corrected based on the user information.

In some embodiments, information for a normal foot corresponding to the foot to be corrected may be determined based at least on the foot length information. In other embodiments, the information of the normal foot corresponding to the foot to be corrected may also be determined based on the sole shape information and/or the full foot information, and the like. In some embodiments, the normal foot corresponding to the foot to be corrected may be a normal foot having the same length as the foot to be corrected. For example, a normal foot that is the same size as the corrected foot can be determined based at least on the foot length information. For another example, a normal foot may be determined that is the same size as the foot length of the corrected foot based at least on the foot length information. In some embodiments, the information of the normal foot includes at least arch information of the normal foot. In some embodiments, the arch information of the normal foot may include arch size information, arch shape information, and the like of the normal foot. In some embodiments, the information of the normal foot may further include foot length information, sole shape information, sole pressure information, and gait information of the normal foot. The foot length information, the sole shape information, the sole pressure information and the gait information of the normal foot are similar to those of the foot to be corrected, and specific reference may be made to the relevant descriptions of the foot length information, the sole shape information, the sole pressure information and the gait information of the foot to be corrected.

And step 320, determining the total correction amount of the foot to be corrected based on the information of the normal foot and the arch information.

The total correction is understood to mean the amount of correction that the foot to be corrected needs to achieve after all correction cycles. In some embodiments, when the arch information includes a height of a highest point of an arch of the foot to be corrected, the total correction amount may include a difference between a normal maximum height of the arch of the foot to be corrected and an actual maximum height of the arch of the foot to be corrected. In other embodiments, when the arch information includes arch heights for a plurality of positions of the arch of the foot to be corrected, the total correction amount includes height correction values for the plurality of positions of the arch of the foot to be corrected. The height correction value may be understood as the difference between the normal arch height of the arch of the foot to be corrected at a certain position and the arch height of the arch of the foot to be corrected at that position.

In some embodiments, the height correction value for each of the plurality of locations is 0.1-0.5 times the arch height of the corresponding location. The flat foot problem can be effectively corrected and the pain of a user during correction can be relieved by setting the height correction value of each position to be 0.1-0.5 times of the arch height of the corresponding position. In some embodiments, the height correction value for each of the plurality of locations is 0.25 times the arch height of the corresponding location.

Based on the total amount of correction, a number of correction cycles is determined to determine at least two correction cycles, step 330.

In some embodiments, after determining the total amount of correction, the number of correction cycles may be determined based on a comparison of the total amount of correction to a predetermined threshold. The preset threshold may be determined based on the foot length information of the user, for example, the longer the foot length, the higher the arch of the foot of the user is, the larger the preset threshold may be. Taking the correction of flat feet as an example, the severity of the arch collapse problem of the user can be reflected by comparing the total correction amount with a preset threshold value, so as to determine the correction cycle number based on the severity. When the total amount to be corrected is larger than the preset threshold value, which indicates that the arch collapse problem of the user is serious, more correction cycle numbers can be set, for example, the correction cycle number is larger than four. For another example, when the total correction amount is less than or equal to the predetermined threshold, which indicates that the arch collapse problem of the user is slight, the number of correction cycles may be set to be smaller, such as four or less.

Fig. 4 is a flow chart of a method of determining a correction model according to some embodiments of the present application. As shown in fig. 4, the process 400 includes the following steps:

based on the total amount of correction and the number of correction cycles, a single correction corresponding to at least one correction cycle is determined, step 410.

In some embodiments, the single correction may be obtained by dividing the total amount of correction by the number of correction cycles, such that the single corrections are equal for any two correction cycles.

In some embodiments, determining the single correction for at least one correction cycle may be determining a single correction for one correction cycle. For example, a single correction amount may be determined for the first correction cycle. In some embodiments, determining a single correction for at least one correction cycle may be determining a single correction for each correction cycle of a plurality of correction cycles. For example, a single correction amount may be determined for each of all correction cycles, or a single correction amount may be determined for each of several correction cycles of all correction cycles.

In some embodiments, the number of remediation cycles may be at least three. In step 410, a single correction for each of at least three correction cycles may be determined based on the total amount of correction and the number of correction cycles. In some embodiments, the single correction of a prior correction cycle may be less than the single correction of a subsequent correction cycle. Through the arrangement, the foot deformity of the user can be gradually corrected, and meanwhile, the pain of the user can be relieved as much as possible. In other embodiments, the individual correction for a prior correction cycle may be greater than the individual correction for a subsequent correction cycle to increase the correction efficiency.

In some embodiments, the difference between the individual corrections for any two adjacent correction cycles is equal. That is, the individual corrections for each correction cycle can be arranged in an arithmetic progression. Through the arrangement, the foot to be corrected can be corrected step by step, and the design process of the correction piece model corresponding to each correction period is greatly simplified.

In other embodiments, the ratio between the individual corrections for any two adjacent correction cycles is equal. That is, the individual corrections for each correction cycle may be arranged in an equal ratio series.

And step 420, determining a correction piece model corresponding to at least one correction period based on the single correction amount corresponding to at least one correction period and the information of the normal foot.

In some embodiments, the associated dimensional data for the orthotic model may be determined based on the single correction for the at least one orthotic cycle and the information from the normal foot, and the associated dimensional data for the orthotic model may be modeled based on the associated dimensional data for the orthotic model to determine the orthotic model for the at least one orthotic cycle. For example, when the orthotic for the sole of the foot is an orthotic insole, the relevant dimensional parameters of the orthotic model may include one or more of the overall length of the orthotic insole, the height of the forefoot portion, the height of the arch support, and the height of the heel portion.

In some embodiments, an initial model of the orthotic may be determined and then the initial model may be adjusted to determine the orthotic model. In some embodiments, the initial model may be a model stored in a database, and the corresponding initial model in the database may be matched based on the foot length information and the arch information.

In other embodiments, the process 420 of determining a orthotic model for at least one orthotic cycle may include the steps of: determining an initial model of the orthotic based on the information of the normal foot; and determining a correction piece model corresponding to at least one correction period based on the initial model and the single correction amount corresponding to at least one correction period. Wherein the initial model of the orthotic may be determined after modeling based on information from a normal foot.

In some embodiments, the corresponding contours of the initial model may be modified according to a single correction to arrive at a correction model. In some embodiments, the arch support in the initial model may be adjusted based on a single correction, e.g., adjusting the contour of the corresponding arch support in the initial model to change the various positional heights of the arch support.

In some embodiments, determining the orthotic model may be by determining a three-dimensional contour model of the foot orthotic, and then determining the orthotic model based on the three-dimensional contour model. In some embodiments, after determining the three-dimensional profile model of the foot orthotic, the degree of softness (e.g., hardness value) of the foot orthotic may be further designed and adjusted to ultimately determine the orthotic model.

In some embodiments, the degree of softness and hardness of the foot orthotic may be designed automatically based on the design system. In some embodiments, the degree of softness (e.g., hardness value) of the foot orthotic may be automatically designed based on user information. In some embodiments, the degree of hardness (e.g., a hardness value) of the foot orthotic may be automatically designed based on the user weight information.

In some embodiments, adjusting the softness or hardness of the foot orthotic may be accomplished by providing the material of the foot orthotic. For example, the degree of softness or hardness of the foot-correcting element may be adjusted by selecting the material of the foot-correcting element or by adjusting the formulation of the materials that the foot-correcting element comprises.

In other embodiments, adjusting the hardness and softness of the foot-correcting component can be achieved by constructing the hollow grids and adjusting various items of data in the information of the hollow grids, as described in detail with reference to fig. 5.

In some embodiments, the orthotic model may be determined based on building a skeleton grid on a three-dimensional profile model of the orthotic. Fig. 5 is a flowchart of a process for determining an orthotic model according to some embodiments of the present application, where as shown in fig. 5, the process for determining an orthotic model may include the steps of:

based on the user information, a three-dimensional contour model of the foot orthotic for at least one orthotic cycle is determined, step 510.

The method of determining a three-dimensional contour model may be as described with reference to step 230 and the method of determining a model of an orthotic described in flow 400 above. In some embodiments, a three-dimensional contour model of a foot orthotic for at least one orthotic cycle may be determined based on at least arch information and foot length information. In some embodiments, the three-dimensional contour model may be modeled based on arch information, foot length information, information for a normal foot, total correction, single correction to generate the three-dimensional contour model. In some embodiments, the three-dimensional contour model may be adjusted based on one or more of plantar shape information, plantar pressure information, gait information, plantar injury location information, total foot information, user demand information, and user weight information. In some embodiments, an initial contour model of the foot orthotic may be determined based on information about a normal foot, and the initial contour model may be adjusted based on the single correction to obtain a three-dimensional contour model of the foot orthotic.

And 520, constructing a hollow grid on the three-dimensional contour model to obtain a correcting piece model.

In some embodiments, the hollow grids are constructed on the three-dimensional contour model by first constructing an inner cavity in the three-dimensional contour model and then filling the hollow grids in the inner cavity. In other embodiments, constructing the hollow grid on the three-dimensional contour model may refer to filling the entire three-dimensional contour model with the hollow grid. In some embodiments, constructing the hollow grid on the three-dimensional contour model may refer to filling part of the three-dimensional contour model with the hollow grid.

The openwork grid includes a plurality of interconnected cells (each grid can be understood as a cell), each cell can include a plurality of struts, and adjacent cells can be interconnected by sharing the struts. In some embodiments, the plurality of units included in the hollow grid may be in the shape of a prism, a pyramid, a tetrahedron, a hexahedron, an octahedron, a hexadecahedron, an icosahedron, or other polyhedral shape. In other embodiments, the cells included in the hollow grid may also have irregular shapes. In some embodiments, the shape and size of the different cells may be the same. In other embodiments, the shape and size of the different cells may be different. Through setting up fretwork net, can change the physical properties (like resilience force, shock attenuation nature and soft or hard degree etc.) of foot correction spare to can adjust the physical properties of each position of foot correction spare based on user information (like sole damage position information, customer's demand information etc.).

In some embodiments, the step of constructing the hollow grid on the three-dimensional contour model may include the following sub-steps: determining information of the hollow grids based on the user information; and constructing the hollow grids on the three-dimensional contour model based on the information of the hollow grids. The information of the hollow grids may include one or more combinations of shape data of the hollow grids, size data of the hollow grids, and size data of the pillars constituting the hollow grids.

The information about the openwork cells may determine the physical properties of the foot orthotic at each location, e.g., the larger the cell size (e.g., volume) of the openwork cells, the softer the foot orthotic. As another example, the larger the size (e.g., diameter) of the struts comprising the open lattice, the stiffer the foot orthotic.

In some embodiments, the information of the hollow grids is determined based on the user information, which may be information of the hollow grids determined based on user requirement information, plantar injury position information, and the like. For example, if the user demand information indicates that the correction strength that the user can endure is weak, the foot correction member can be designed to be softer (increasing the size of the open mesh and/or decreasing the size of the strut) by designing the information of the open mesh. For another example, after determining the specific location of the damaged sole region, the foot orthotic may be designed to have a softer location corresponding to the damaged sole region.

In some embodiments, the information for determining the hollow grids may be information for determining the hollow grids based on user weight information. In some embodiments, a plurality of weight intervals of the user and the hardness (e.g., hardness) of the foot correction element corresponding to each interval may be preset. Based on the weight information of the user, the hardness and softness of the foot correction piece can be determined, and then various data in the information of the hollow grids are adjusted based on the hardness and softness, so that the foot correction piece with the hollow grids can reach the hardness and softness. In some embodiments, the information of the open mesh of the foot correction element can be automatically designed based on the user weight information to adjust the hardness (e.g., hardness) of the foot correction element.

The application embodiment may bring beneficial effects including but not limited to: (1) By dividing the correction process into a plurality of correction periods and determining a correction piece model of at least one correction period, the foot correction piece generated based on the correction piece model can correct the foot in a staged manner, so that the pain of a user in each correction period is greatly reduced, the user experience is improved, the user can use the foot correction piece more possibly and insistently, and the correction effect is ensured; (2) The correcting piece model of one or more subsequent correcting periods can be determined based on the correcting result information of the previous correcting period, so that the sole correcting piece corresponding to the subsequent correcting period can be adjusted according to the correcting condition of the user, and a better correcting effect is ensured; (3) The hollow grids are constructed to obtain the correcting piece model, so that various physical properties of the foot correcting piece can be conveniently adjusted, and pain feeling of a user when the user wears the foot correcting piece is reduced; (4) Through using 3D printing mode to print foot correction piece, avoid adopting a plurality of moulds to make foot correction piece, can simplify the manufacturing process of foot correction piece, and reduce manufacturing cost. It is to be noted that different embodiments may produce different advantages, and in different embodiments, the advantages that may be produced may be any one or combination of the above, or any other advantages that may be obtained.

Embodiments of the present application also provide a foot orthotic manufactured by the method of any of the above embodiments. The license method is adopted to manufacture the foot correcting piece, so that the pain of a user is relieved while the foot correcting piece can achieve the correcting effect, and the manufacturing process of the foot correcting piece is simple and convenient, the manufacturing cost is low, and the license method is convenient to widely popularize and apply.

It is to be noted that different embodiments may produce different advantages, and in different embodiments, any one or combination of the above advantages may be produced, or any other advantages may be obtained.

Having thus described the basic concept, it will be apparent to those skilled in the art that the foregoing detailed disclosure is to be considered merely illustrative and not restrictive of the broad application. Various modifications, improvements and adaptations to the present application may occur to those skilled in the art, although not explicitly described herein. Such modifications, improvements and adaptations are proposed in the present application and thus fall within the spirit and scope of the exemplary embodiments of the present application.

Also, this application uses specific language to describe embodiments of the application. Reference throughout this specification to "one embodiment," "an embodiment," and/or "some embodiments" means that a particular feature, structure, or characteristic described in connection with at least one embodiment of the present application is included in at least one embodiment of the present application. Therefore, it is emphasized and should be appreciated that two or more references to "an embodiment" or "one embodiment" or "an alternative embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, certain features, structures, or characteristics may be combined as suitable in one or more embodiments of the application.

Additionally, the order in which elements and sequences of the processes described herein are processed, the use of alphanumeric characters, or the use of other designations, is not intended to limit the order of the processes and methods described herein, unless explicitly claimed. While various presently contemplated embodiments of the invention have been discussed in the foregoing disclosure by way of example, it is to be understood that such detail is solely for that purpose and that the appended claims are not limited to the disclosed embodiments, but, on the contrary, are intended to cover all modifications and equivalent arrangements that are within the spirit and scope of the embodiments herein. For example, although the system components described above may be implemented by hardware devices, they may also be implemented by software-only solutions, such as installing the described system on an existing server or mobile device.

Similarly, it should be noted that in the preceding description of embodiments of the application, various features are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure aiding in the understanding of one or more of the embodiments. This method of disclosure, however, is not intended to require more features than are expressly recited in the claims. Indeed, the embodiments may be characterized as having less than all of the features of a single embodiment disclosed above.

Where numerals describing the number of components, attributes or the like are used in some embodiments, it is to be understood that such numerals used in the description of the embodiments are modified in some instances by the modifier "about", "approximately" or "substantially". Unless otherwise indicated, "about", "approximately" or "substantially" indicates that the number allows a variation of ± 20%. Accordingly, in some embodiments, the numerical parameters used in the specification and claims are approximations that may vary depending upon the desired properties of the individual embodiments. In some embodiments, the numerical parameter should take into account the specified significant digits and employ a general digit preserving approach. Notwithstanding that the numerical ranges and parameters setting forth the broad scope of the range are approximations, in the specific examples, such numerical values are set forth as precisely as possible within the scope of the application.

The entire contents of each patent, patent application publication, and other material cited in this application, such as articles, books, specifications, publications, documents, and the like, are hereby incorporated by reference into this application. Except where the application is filed in a manner inconsistent or contrary to the present disclosure, and except where the claim is filed in its broadest scope (whether present or later appended to the application) as well. It is to be understood that the descriptions, definitions and/or uses of terms in the attached materials of this application shall control if they are inconsistent or inconsistent with the statements and/or uses of this application.

Finally, it should be understood that the embodiments described herein are merely illustrative of the principles of embodiments of the present application. Other variations are also possible within the scope of the present application. Thus, by way of example, and not limitation, alternative configurations of the embodiments of the present application can be viewed as being consistent with the teachings of the present application. Accordingly, the embodiments of the present application are not limited to only those embodiments explicitly described and depicted herein.

Claims

1. A method of manufacturing a foot orthotic, the method comprising the steps of:

acquiring user information; the user information comprises sole information of a foot to be corrected of a user; the sole information comprises arch information and foot length information;

determining at least two correction periods based on the user information;

and determining a correction piece model corresponding to at least one correction period based on the user information.

2. The manufacturing method according to claim 1, wherein the sole information further includes sole shape information, sole pressure information, gait information, and/or sole damage position information.

3. The manufacturing method according to claim 1, wherein the user information further includes at least one of information on a full foot of the foot to be corrected, information on user demand, and information on user weight.

4. The manufacturing method of claim 1, wherein the determining at least two correction cycles based on the user information comprises:

determining information of a normal foot corresponding to the foot to be corrected based on the user information; the information of the normal foot includes at least an arch size of the normal foot;

determining a total amount of correction of the foot to be corrected based on the information of the normal foot and the arch information;

based on the total amount of correction, a number of correction cycles is determined to determine at least two correction cycles.

5. The manufacturing method according to claim 4, wherein the arch information includes arch heights of a plurality of positions of an arch of the foot to be corrected, and the correction amount includes height correction values of the plurality of positions of the arch of the foot to be corrected; the height correction value for each of the plurality of positions is 0.1-0.5 times the arch height for the corresponding position.

6. The method of manufacturing according to claim 4, wherein determining a orthotic model for at least one orthotic cycle based on the user information comprises:

determining a single correction amount corresponding to at least one correction period based on the total correction amount and the correction period number;

determining a orthotic model for the at least one orthotic cycle based on the single orthotic for the at least one orthotic cycle and the information for the normal foot.

7. The method of manufacturing of claim 6, wherein the number of cycles of straightening is at least three, and wherein determining the individual correction for at least one cycle of straightening based on the total number of corrections and the number of cycles of straightening comprises:

determining a single correction amount for each of at least three correction cycles based on the total amount of correction and the number of correction cycles; wherein the single correction of a preceding correction cycle is less than the single correction of a subsequent correction cycle.

8. The method of claim 7, wherein the difference between the individual corrections for any two adjacent correction cycles is equal.

9. The method of manufacture of claim 7, wherein the individual corrections for any two correction cycles are equal.

10. The method of manufacturing according to claim 6, wherein determining the model of the orthotic corresponding to the at least one orthotic cycle based on the single correction corresponding to the at least one orthotic cycle and the information on the normal foot comprises:

determining an initial model of the foot orthotic based on the information for the normal foot;

and determining a correction piece model corresponding to the at least one correction period based on the initial model and the single correction amount corresponding to the at least one correction period.

11. The method of manufacturing according to claim 3, wherein determining a orthotic model for at least one orthotic cycle based on the user information comprises:

determining a three-dimensional profile model of the correction piece corresponding to at least one correction period based on the user information;

and constructing a hollow grid on the three-dimensional contour model to obtain the correcting piece model.

12. The method of manufacturing of claim 11, wherein building a skeleton grid on the three-dimensional outline model comprises:

determining information of the hollow grids based on the user information; the information of the hollow grids comprises one or more of shape data of the hollow grids, size data of the hollow grids and size data of pillars forming the hollow grids;

and constructing the hollow grids on the three-dimensional contour model based on the information of the hollow grids.

13. The manufacturing method of claim 12, wherein determining information for the skeleton grid based on the user information comprises:

and determining the information of the hollow grids at least based on the weight information of the user.

14. The manufacturing method according to claim 1, wherein determining at least one corresponding orthotic model for at least one orthotic cycle based on the user information comprises:

determining a correction piece model corresponding to a correction period based on user information;

acquiring correction result information; the correction result information is used for reflecting arch information of a user wearing the correction piece after one correction period;

and determining a correction piece model corresponding to the rest correction periods based on the correction result information.

15. The manufacturing method according to claim 14,

the correction result information is determined based on the measurement data of the arch information of the user wearing the correction piece after one correction period; and/or the presence of a gas in the gas,

the orthotic outcome information is determined based on predicted data for arch information of the user after wearing the orthotic for one orthotic cycle.

16. The method of manufacturing of claim 14, wherein the corrective outcome information further comprises user experience feedback information.

17. The manufacturing method according to claim 1, further comprising:

and printing the foot correction piece corresponding to the at least one correction period by using a 3D printing mode based on the correction piece model.

18. The method of manufacturing according to claim 1, wherein the foot orthotic comprises an elastic resin material.

19. The method of manufacturing according to claim 1, wherein the elastic modulus of the foot orthotic is between 1MPa and 50MPa.

20. The manufacturing method according to claim 1, wherein the tensile strength of the foot orthotic is 5MPa to 50MPa.

21. The method of manufacturing according to claim 1, wherein the foot orthotic has an elongation at break of 50% to 600%.

22. A foot orthotic, made by the method of manufacture of any one of claims 1-21.