Personalized insole optimization design method based on mechanical characteristics of foot tissue layers of diabetic patient

Abstract

The invention relates to a personalized insole optimization design method based on mechanical characteristics of foot tissue layers of a diabetic patient, which comprises the following steps of: [1] testing and analyzing sole pressure; [2] establishing a finite element model and performing simulation optimization; [3] performing 3D printing. According to the invention, an actual measurement methodand a finite element analysis method are combined, the method has the advantages of accuracy, convenience, rapidness, economy and the like, can analyze various working conditions through a perfect model and various load conditions, and provides a personalized insole design for the diabetic patient, thereby reducing the possibility of the diabetic patient to generate plantar ulcer, relieving the pain of the diabetic patient and providing positive assistance for the diabetic patient to keep the health of the diabetic patient.

Description

technical field [0001] The invention relates to the technical field of insoles, in particular to a method for optimizing the design of personalized insoles based on the mechanical properties of the foot tissue layers of diabetic patients. Background technique [0002] Diabetes is a chronic disease that is widely prevalent in the world. Diabetic foot is one of the most common complications of diabetes. High morbidity, high disability and fatality rates, and high medical expenses have greatly reduced the quality of life of patients. Studies have shown that about 15%-20% of diabetic patients in the world will develop plantar ulcers or gangrene, and about 50% of amputee patients each year are diabetic patients, and 85% of diabetic patients are amputated because of foot ulcers. [0003] Studies have shown that the occurrence of diabetic foot is not only related to peripheral neuropathy, infection and other factors, but also closely related to the abnormal increase of plantar pre...

AI Technical Summary

Problems solved by technology

However, it is difficult to give an in-depth explanation of the rationality of plantar pressure research due to the inability to obtain the real stress of internal bones, ligaments and other structures

On the other hand, in the current methods of optimizing insoles based on plantar pressure tests, most of them directly perform decompression interventions on the high-pressure areas obtained from the tests, but in actual situations, the data measured by plantar pressure tests reflect that the foot The interface pressure between the sole and the insole, and studies have shown that the part with high interface pressure does not necessarily correspond to the part with high internal tissue stress

In addition, during the plantar pressure test, the patient's subjective will will affect the experimental results, so that only the actual measurement method cannot accurately reflect the real situation of the foot force

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