Personalized occupation insole and preparation method thereof

A technology of insoles and parts, which is applied in the field of personalized space-occupying insoles and its preparation, can solve the problems of insignificant clinical fit and rehabilitation effect, and difficulty in meeting the individual needs of patients, so as to improve the rehabilitation effect, avoid skin damage, The effect of reducing foot pressure

Inactive Publication Date: 2020-01-24
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, all kinds of foot wearable devices on the market are mass-produced products. The shape of the patient's foot, amputation / toe amputation site, soft and hard soft tissue of the foot are different, and the demand for the shape and mechanical properties of the foot wearable device is also different. They are different and have distinct individual needs, and batch products are difficult to meet the individual needs of patients, so the degree of clinical adaptation and rehabilitation effect are not significant

Method used

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  • Personalized occupation insole and preparation method thereof
  • Personalized occupation insole and preparation method thereof
  • Personalized occupation insole and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Example 1, such as figure 1 As shown, a personalized space-occupying insole is used for patients with foot defects through metatarsal amputation. The personalized space-occupying block 1 is located above the bottom pad 2. The design method is as follows: use an optical scanner to obtain the geometry of the residual foot of the patient with foot defect Model; use the geometric model of the normal foot of the same size and the geometric model of the residual foot to subtract the Boolean operation, and design the geometric model of the personalized spacer 1, such as figure 2 , image 3 As shown; the initial geometric model of the bottom pad is designed according to the normal foot geometric model of the same size. The upper surface and the lower surface of the bottom pad initial geometric model are both planes; Design the geometric model of base pad 2, such as Figure 4 shown. Through this method, on the one hand, the personalized placeholder block 1 can correspond to ...

Embodiment 2

[0027] Example 2, such as Figure 5 As shown, a personalized space-occupying insole is used for patients with foot defects with amputation of the little toe. The personalized space-occupying block 1 is located above the bottom pad 2. The design method is as follows: use CT scan to obtain the geometric model of the residual foot of the patient with foot defect ; Use the geometric model of the normal foot of the same size and the geometric model of the residual foot to perform Boolean subtraction to design the geometric model of the personalized spacer 1, such as Figure 6 , Figure 7 As shown; the initial geometric model of the bottom pad is designed according to the normal foot geometric model of the same size. The upper surface and the lower surface of the bottom pad initial geometric model are both planes; Design the geometric model of base pad 2, such as Figure 8 As shown; through this method, on the one hand, the personalized placeholder block 1 can correspond to the mi...

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Abstract

The invention relates to a personalized occupation insole and a preparation method thereof, the personalized occupation insole comprises a personalized occupation block and a bottom pad, the personalized occupation block is located above the bottom pad, the position of the personalized occupation block corresponds to a missing part of the foot, and the personalized occupation block is matched withthe shape of the missing part of the foot; the personalized occupation block and the bottom pad have uniform elasticity modulus or variable elasticity modulus; according to the preparation method, the contact pressure of the personalized occupation insole comprising the personalized occupation block and the bottom pad and the residual foot of the patient is calculated through finite element analysis, and then the uniform elastic modulus or the variable elastic modulus of the personalized occupation block and the bottom pad is optimized with the purpose of reducing the contact pressure as an optimization target; by starting from the two aspects of the space occupying function and the biomechanical property, the personalized occupation insole with the missing part personalized occupation function and the function of reducing the residual foot stress peak value is provided for a foot amputation / apoptosis patient, the personalized requirements of the patient are met, and the clinical adaptation degree and the rehabilitation effect are improved.

Description

technical field [0001] The invention belongs to the technical field of personalized aiding devices for the disabled, and in particular relates to a personalized space-occupying insole and a preparation method thereof. Background technique [0002] The foot transmits the force of the human body to the ground when standing and exercising, and plays a vital supporting role. Amputation / amputation of the foot due to trauma, inflammation, tumor, disease, and congenital defects can lead to problems such as impaired foot function, limited motor function, and the vacant position can cause the residual foot to develop during walking If the displacement is large, the skin at the end of the residual limb retained after amputation / toe amputation is relatively weak, which is likely to cause further secondary damage. The above problems will bring health and economic burdens to patients, especially for diabetic foot patients, the secondary injury will cause very serious consequences. Acra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F5/01
CPCA61F5/0111A61F5/0195
Inventor 王玲孙畅宁岳银恒王珂珈朱思尧李涤尘
Owner XI AN JIAOTONG UNIV
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