Physical examination model for developmental dysplasia of the hip (DDH)

Abstract

The invention relates to a physical examination model for DDH. The model comprises an upper body, a hip portion connected to the upper body and a leg portion connected to the hip portion, the hip portion comprises a combined bone structure, knees of the hip portion and the leg portion can be unbent or bent, the combined bone structure comprises a left hipbone, a left pubis, a left ischium, a leftacetabulum, the upper segment of a left femur head and a left trochanter major, the left acetabulum is flat and shallow, the left femur head is positioned outside the left acetabulum, and when the hipis bent for 90 degrees, abduction of the left hip joint does not exceed 45 degrees. The model can serve as a teaching aid so that students can know sings of DDH; the students can practical Barlow andOrtolani tests repeatedly via the model, and avoids possible injury of the hip joint during practice in a child patient; the students can experience characteristics of limited abduction of the hip joint; the operational feeling of the model approaches that in a real case; and the model is simple in structure and low in cost.

Description

technical field [0001] The invention relates to a model, in particular to a model for physical examination of developmental dislocation of the hip, belonging to the field of medical devices. Background technique [0002] Developmental dysplasia of the hip is the most common hip disease in infants and young children. Dislocation is the most serious type, and it needs to be diagnosed and treated as soon as possible. The clinical examination is the earliest test performed for the diagnosis of DDHD. Awareness of disease characteristics and a standard physical examination can diagnose most hip dislocations. The Barlow test and the Ortolani test are the two most important tests in the physical examination, and hip dislocation can be diagnosed when they are positive. At the same time, the signs that can be used as reference include unequal length of lower limbs, asymmetric skin striae, and limited hip joint abduction. Because of the serious consequences of missing a diagnosis of...

AI Technical Summary

Problems solved by technology

At present, most of the training methods for this disease are text explanations and picture displays, and because the incidence rate is not high, it is difficult to obtain enough cases for rehearsal

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