Optical ultrasound imaging device for diagnosing breast cancer

Abstract

The invention discloses an optical ultrasonic imaging device for diagnosing breast cancer, which comprises a bowl-shaped flexible ultrasonic probe, a laser probe, a pulsed laser emitter, an ultrasonicreceiver, a data processing unit and an image display. The device comprises a bowl-shaped flexible ultrasonic probe, a laser probe, a pulsed laser emitter, an ultrasonic receiver, a data processing unit and an image display. The ultrasonic transducer adopts bowl-shaped shell and flexible structure, adopts multi-array array composite wafer structure, utilizes multi-array array composite wafer, andcombines the principle of phased array technology to obtain the signal sources with different initial phases. An ultrasonic transducer is connected to an ultrasonic receiver. A laser probe connectedwith a pulse laser emitter emits a laser beam with a certain frequency to that inside of the tissue, molecules or substances that absorb light at a particular wavelength are called chromophores. The light energy absorbed by the chromophore is converted into heat energy by molecular vibration and thermoelastic expansion to generate ultrasonic wave, which is detected by an ultrasonic sensor in the device, and the waveform signal is synthesized into an image through an ultrasonic receiver and a data processing unit and displayed on an image display.

Description

technical field [0001] The invention relates to the field of medical breast cancer lesion diagnosis and adjuvant therapy, in particular to an optical ultrasonic imaging device for breast cancer diagnosis that can detect superficial (in vivo) lesions. Background technique [0002] When the pulsed laser irradiates the biological tissue, the absorber located in the tissue absorbs the pulsed light energy, generates instantaneous temperature rise and expands, and generates ultrasonic waves. At this time, the ultrasonic detector located on the surface of the tissue body can receive these external ultrasonic waves, and reconstruct the image of the light energy absorption distribution in the tissue according to the detected photoacoustic signal. After the laser beam is incident on the tissue surface, the penetration depth of the beam varies according to the wavelength of the laser. In this process, the light beam is subjected to multiple scattering and absorption, and molecules or ...

AI Technical Summary

Problems solved by technology

[0004] Second: Most of the current detection equipment is general-purpose equipment, which cannot be applied to some uneven surfaces of the human body;

[0005] Third: The number of ultrasonic probes directly determines the number of echoes used for post-imaging, and the current detection equipment has a small number of probes

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