A personalized design method for diabetic foot insoles

Abstract

An individualized design method for a diabetic foot shoe pad comprises the steps that firstly, a general foot bone model is established, then key size data of the diseased foot is acquired, the general foot bone model is scaled to obtain an individualized bone model of the diseased foot, then three-dimensional data of surface appearance of the diseased foot is acquired and is coupled with the individualized bone model, and assembly is performed in CAN software to obtain an individualized three-dimensional model of the diseased foot; then, based on the three-dimensional model of the foot, a diabetic foot shoe pad base model completely fit with the foot is established according to foot bottom appearance characteristics and is imported into finite element analysis software with the three-dimensional model of the foot to perform assembly and grid partitioning, a finite element model of a foot-shoe pad is obtained, then a stress distribution result is analyzed and calculated, the modulus and structures of zones of the diabetic foot shoe pad base model are modified to form a final diabetic foot shoe pad model. The designed shoe pad meets the individualized demand, meanwhile a product design period is shortened, and the cost is reduced.

Description

technical field [0001] The invention belongs to an insole design method, in particular to a personalized design method for diabetic foot insoles. Background technique [0002] Diabetic foot is a common complication of diabetes. The important cause of its formation is the uneven pressure on the patient's foot in daily life, which leads to ulceration at the site of concentrated stress, which deteriorates and eventually leads to amputation. Therefore, a suitable diabetic foot insole design can effectively improve the supporting capacity of the arch and improve the stress distribution of the patient's sole, thus playing a certain role in the prevention and adjuvant treatment of diabetic feet caused by uneven stress distribution. However, using traditional methods such as trial models to obtain patient foot data only considers the surface topography characteristics of the patient's sole, and does not consider the foot skeletal system, muscle ligament system, and plantar stress un...

AI Technical Summary

Problems solved by technology

However, using traditional methods such as trial models to obtain patient foot data only considers the surface topography characteristics of the patient's sole, and does not consider the foot skeletal system, muscle ligament system, and plantar stress under different stances that affect the distribution of plantar stress. Changes, personalized design is not enough

Secondly, the traditional design method only considers designing products that fit the shape of the sole to adapt to the sole, rather than optimizing the stress distribution of the sole by changing the local modulus parameters of the product

At the same time, the existing response period from data collection to design of the insole model is long, and there is a lack of an efficient, fast, and mechanically based design process

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