Three-dimensional reverse customization femoral neck fracture surgical navigator and using method thereof

Abstract

The invention discloses a three-dimensional reverse customization femoral neck fracture surgical navigator and a using method thereof. The navigator comprises a base which can be fixed to a thigh bone, a guiding base connected with the base through a connecting rod, a guiding pipe moving along the guiding base, a guiding pin and a screw, wherein the bottom of the base fits the thigh bone of the human body in shape. The base, the connecting rod and the guiding base adopt three-dimensional engineering software modeling according to characteristics of a patient and are printed and manufactured through a 3D printer according to the specific characteristics of the thigh bone of the patient, only a small incision needs to be cut in the patient during surgery, the base is placed into incision and positioned, fastening work of the screw can be performed conveniently, the operation process is simple, precision is high, the surgical difficulty can be lowered, and the surgical precision can be improved.

Description

technical field [0001] The invention relates to medical equipment, in particular to a navigator and a usage method based on three-dimensional reverse design technology and through customization for medical treatment of femoral neck fractures. 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 int...

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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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