Proximal femoral nail guide pin in vitro locator

Abstract

The invention relates to a proximal femoral nail guide pin in vitro locator, and belongs to the technical field of medical apparatuses. The locator comprises an indicating pin part and a base fixing part, wherein the base fixing part comprises a first connecting shaft and a second connecting shaft; the first connecting shaft is an arc-shaped shaft with two ends fixedly connected to the second connecting shaft; clamping tongs, which are in shaft connection to the ends of the second connecting shaft, are arranged at two ends of the second connecting shaft, and opening parts of the clamping tongs are opened and closed by virtue of the second connecting shaft; and the indicating pin part is connected to the first connecting shaft by virtue of a shaft connecting part which is located in a same plane with the indicating pin part and is in hard connection to the indicating pin part, and the indicating pin part is capable of doing a relative motion. With the application of the locator disclosed by the invention, the specific position of a guide pin which is punched into femoral head can be specifically located, so that the guide pin can be punched into the ideal position of the femoral head in one time; therefore, injury to a bone structure due to repeated operations is avoided and a failure rate of postoperative internal fixation is reduced, and meanwhile, an X-ray exposure amount of doctors in an operation is also reduced.

Description

technical field [0001] The invention relates to the technical field of medical machinery, in particular to a positioning instrument used in the repair operation of femoral intertrochanteric fractures, in particular to an external locator for proximal femoral intramedullary nail guide pins. Background technique [0002] As we enter an aging society, the elderly population is increasing, and the incidence of elderly hip fractures (femoral neck and intertrochanteric fractures) is also increasing year by year. Intertrochanteric fractures in the elderly are one of the most important public health issues facing the orthopedics department because of their high mortality rate, high disability rate, and high failure rate, causing heavy personal and family burdens on the elderly. [0003] For intertrochanteric fractures in the elderly, reduction and internal fixation of fractures are still the main means of clinical treatment. In the past 10 years, proximal femoral intramedullary nai...

AI Technical Summary

Problems solved by technology

[0004] However, due to the lack of external positioning devices, it is usually difficult to accurately drive the guide pin into the ideal position in the center of the femoral head at one time under fluoroscopy of the hip joint during surgery. Bone structure, but also increase the operation time and X-ray exposure of medical care patients

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