A wire transmission mechanism for the rotation of the c-arm of a breast machine

Abstract

The invention relates to a wire transmission mechanism for the rotation of a C arm of a breast machine. The purpose is to provide a C-arm rotating wire transmission mechanism with simple structure, low cost and easy operation. The invention comprises a wire driving driving wheel, a wire driving driven wheel and a tension regulating mechanism. The power of the wire drive mechanism is provided by the stepping motor, and the power is transmitted to the wire drive driving wheel through the reduction gear box, and the wire drive driven wheel is driven by the steel wire to rotate, thereby driving the C arm to rotate. The tension adjusting mechanism comprises a wire locking block locating pin, a steel wire locking block, a steel wire fixing pin and a steel wire pressing plate, and the wire locking block locating pin limits the wire locking block and the wire driving driven wheel to be relatively stationary. The steel wire fixing pin is locked and fixed on the wire driving driven wheel, and the steel wire passes through the steel wire fixing pin for preliminary fixing. The steel wire passes through the through hole at the end face of the steel wire locking block, knotted and locked, and fixed again. The steel wire pressing plate is used to fix the other end of the steel wire on the wire driving driven wheel.

Description

technical field [0001] The invention relates to a transmission device of a medical device, in particular to a wire transmission mechanism for the rotation of a C-arm of a breast machine. Background technique [0002] At present, the incidence of breast cancer has jumped from the second to the first among female malignant tumors, and the age of onset tends to be younger. The serious harm of breast cancer to human health has attracted the attention of the World Health Organization and medical professionals. Early detection, early diagnosis and early treatment of breast cancer are the key to reduce mortality. [0003] There are many methods for diagnosing breast cancer, such as breast cancer X-ray diagnosis, ultrasound imaging examination, B-ultrasound and CT examination, etc. At present, breast cancer X-ray diagnosis method is convenient, quick and easy to operate, so it is widely used by hospitals. The medical equipment for X-ray diagnosis of breast cancer mainly adopts high...

AI Technical Summary

Problems solved by technology

The first type has the advantages of compact structure, small arm width, simplicity, and beauty, but the worm gear transmission has high requirements for processing and assembly adjustment, and high requirements for the technical level of assemblers. The production cost of the standard specification reducer is still high

The second type uses a standard worm reducer, which has low requirements for processing and assembly, and low requirements for the technical level of assemblers, so the cost is low. Large, resulting in a large arm width or a large bulge on one side of the arm due to the installation of a reducer, the arm is not coordinated with the whole machine, it is not simple, and it is not beautiful

Generally speaking, in the C-arm rotation mechanism of the current high-frequency mammography machine, the steel wire cannot always run under the pre-tightened state, and the adjustment accuracy of the steel wire is not enough

In the process of operation, the security of the steel wire is often not fixed enough, which makes the system a potential safety hazard. At the same time, the phenomenon of slipping may occur during the braking process of the C-arm, which poses a threat to personal safety.

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