A three-dimensional reverse customized surgical navigator for femoral neck fracture

Abstract

A three-dimensional reverse customized femoral neck fracture surgical navigator and its use method, including a base that fits the shape of the human femur and can be fixed on the femur, a guide seat that is connected to the base through a connecting rod, and a device that moves along the guide seat Guide tube, with guide wire and screws. Among them, the base, connecting rod and guide seat are modeled with 3D engineering software according to the patient's characteristics, and then printed by a 3D printer according to the specific characteristics of the patient's femur. During the operation, only a small incision is made on the patient, and the base is placed and placed. Positioning, the screw fastening work can be conveniently performed. The operation process is simple and the precision is high, which is beneficial to reduce the operation difficulty and improve the operation accuracy.

Description

technical field [0001] The invention relates to medical equipment, in particular to a navigator for medical treatment of femoral neck fractures based on three-dimensional reverse design technology and through customization. Background technique [0002] The femur is the largest long tubular bone in the human body, such as figure 1 As shown, it can be divided into two ends, that is, the femoral body 100 in the middle and the ends located at the two ends of the femoral body, wherein the upper end is swollen towards the inside and the upper end is spherical, which is the femoral head 400, which is articulated with the acetabulum, and the femoral head The lower and outer thinner part of the femoral neck is the femoral neck 300 ; on the outer side of the neck-body junction, there is an upward bulge called the greater trochanter 500 , and the smaller inner and lower bulge is the lesser trochanter 200 . Between the greater and lesser trochanters, there is an intertrochanteric line...

AI Technical Summary

Problems solved by technology

This type of surgical plan requires a very high level of doctors, and their proficiency and operation time will directly affect the incidence of postoperative complications; but even if the doctor has a high level, it is still extremely difficult to control the accuracy of the operation, especially It is the precise recovery of anatomical structures such as the neck-shaft angle and anteversion angle during the operation, which has always been a difficult problem restricting the operation of the surgeon; in addition, the fluoroscopy through the C-arm machine requires repeated adjustments and irradiation. Repeated reduction and adjustment not only increases the risk of screw withdrawal and cutting out, but also easily leads to problems such as large-scale tissue stripping, resulting in an increased risk of postoperative femoral head necrosis

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