Device for measuring front-and-back movement of tibia

Abstract

The invention relates to the technical field of medical devices, in particular to a device for measuring front-and-back movement of a tibia. The device comprises an instrument frame, a tibia fixator and a patella fixator, wherein patella fixator height adjusting buttons are arranged at the upper ends of the two sides of the instrument frame, a connecting base is arranged on the upper side of the base surface of the instrument frame, a sliding groove is formed in the bottom of the instrument frame, a patella fixator sliding shaft penetrating through the connecting base is arranged in the sliding groove, the bottom of the patella fixator sliding shaft is provided with the patella fixator, and an electronic instrument panel is installed on the portion, on the lower side of the connecting base, of the base surface of the instrument frame. The whole device measures the front-and-back movement of the tibia of a patient with knee joint ligament injuries, an accurate result can be measured simply by requiring that the patient lies on the back, one operator can operate the device, and the device is convenient to use, simple in structure, high in measurement accuracy and relatively high in stability and practicability and has a certain popularization value.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a device for measuring tibial anteroposterior movement. Background technique [0002] Knee ligament injury is one of the most common diseases of the knee joint. Knee ligament injuries, especially patients with anterior and posterior cruciate ligament injuries, will cause excessive anteroposterior movement of the tibia relative to the femur due to rupture of the ligaments. At present, the methods for measuring the movement of the patient’s tibia relative to the femur include the stress plane film under fluoroscopy and the tibial movement measuring instrument imported from abroad. It is not an intuitive measurement, and there is a high cost. It is also necessary to import the taken fluoroscopy film into the computer for measurement, which is time-consuming, laborious and expensive. The disadvantage of the second type of tibial movement measuring instrument imported from a...

AI Technical Summary

Problems solved by technology

At present, the methods for measuring the movement of the patient’s tibia relative to the femur include the stress plane film under fluoroscopy and the tibial movement measuring instrument imported from abroad. It is not an intuitive measurement, and there is a high cost. It is also necessary to import the captured fluoroscopy film into the computer for measurement, which is time-consuming, laborious and expensive

The disadvantage of the second type of tibial movement measuring instrument imported from abroad is that it needs to be manually reset, and the readings are always changing, and the maximum displacement cannot be determined. Therefore, a tibial movement measuring device is needed to improve the above problems.

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