A kind of breast compressor movement device and its pressure and thickness calibration method

Abstract

The invention provides a breast compressor movement device and a pressure and thickness calibrating method thereof. The breast compressor movement device comprises a C-shaped arm which can rotate around a fixed point, a stepping motor which is arranged on the C-shaped arm, a screw rod of which one end is connected with a rotating shaft of the stepping motor, a potentiometer which is arranged at the other end of the screw rod, a screw nut which is arranged on the screw rod and connected with the potentiometer and moves on the screw rod when the screw rod rotates, a pressure sensor which is connected with the screw nut and can move along with the screw nut, a compressor which is connected with the pressure sensor and a breast support frame which is arranged on the C-shaped arm and located below the compressor. According to the breast compressor movement device and the pressure and thickness calibrating method thereof, in the rotation process of the C-shaped arm, a current space between the compressor and the breast support frame is obtained, the thickness compensation value is obtained according to the current pressure value, therefore, the accurate target breast thickness is obtained, and the accuracy of measurement is improved.

Description

technical field [0001] The invention relates to the technical field of medical electronic equipment, in particular to a breast compressor movement device and a pressure and thickness calibration method thereof. Background technique [0002] When performing mammography, it is necessary to compress the breasts and fully flatten the breast glands to improve the quality of breast images and reduce the radiation dose received by patients, which is more conducive to diagnosis. Therefore, when performing mammography, it is necessary to mount the breast on a carbon fiber board, and use a compressor to compress the breast. After the compression is completed, the system collects the pressure value and breast thickness value information obtained after the breast is compressed. , to determine the X-ray exposure conditions used. Therefore, the accuracy of the compressed pressure value and thickness value plays a key role in the exposure conditions adopted, and whether the exposure condi...

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Problems solved by technology

[0006] In view of the deficiencies of the above-mentioned prior art, the purpose of the present invention is to provide a breast compressor movement device and its pressure and thickness calibration method, aiming at solving the problem of not considering the compressor or breast compression in the prior art. The influence of the deformation of the breast support frame on the accuracy of the target breast thickness causes errors in the measurement results

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