Breast carcinoma early-stage detecting instrument based on annular array opto-acoustic sensing technology

Abstract

The invention provides a breast carcinoma early-stage detecting instrument based on annular array opto-acoustic sensing technology. The breast carcinoma early-stage detecting instrument based on the annular array opto-acoustic sensing technology comprises a detecting bed, an optical excitation unit, a signal collecting unit, a signal processing unit, a sensing unit, an outer controlling unit and an image displaying unit. A detecting window is formed in the detecting bed. A light permeating glass outer shell is arranged below the detecting window. The optical excitation unit comprises an annular array impulse laser tube, a lens system and a drive circuit. The signal collecting unit is a multiple-channel parallel collecting system. The sensing unit comprises an annular array supersonic sounding device, a supersonic coupling agent and a sealed container. The breast carcinoma early-stage detecting instrument based on the annular array opto-acoustic sensing technology is simple in structure, convenient to operate, low in cost, high in integration degree, easy to apply and popularize, capable of integrating opto-acoustic excitation, coupling and sensing and capable of achieving a small and practical system structure and meets the requirement of breast carcinoma clinical detection, obtains opto-acoustic cross-sectional images in the depth direction of a breast in real time and achieves breast carcinoma early-stage detection by carrying out CT scanning on the breast tissue.

Description

technical field [0001] The invention relates to the technical fields of biomedical imaging and medical equipment, in particular to an early detection device for breast cancer based on ring array photoacoustic sensing technology. Background technique [0002] Breast cancer is one of the most common malignant tumors in women. About 1.2 million women worldwide suffer from breast cancer every year, and about 500,000 women die from breast cancer. Since the end of the 1970s, breast cancer has been ranked first in female tumors worldwide, and has been increasing at a rate of 2% every year. In 2010, the number of new cases of breast cancer worldwide reached 1.4 million. At present, in some cities in my country, such as Shanghai and Wuhan, breast cancer has taken the first place in the incidence of female tumors, and Beijing, Tianjin, Harbin and other cities have also taken the second place. Therefore, how to effectively control the occurrence and development of breast cancer has be...

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Problems solved by technology

However, at present, a high-power solid-state laser is generally used as an excitation source for vertical irradiation, and a single detector or a linear array detector is used to collect signals in a lateral scanning manner, and water or other liquids are used as an ultrasonic coupling agent. The device is dispersed and the price is low. Higher, and this imaging method does not meet the requirements of clinical testing, hindering its development and application

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