Cataract crystalline lens hardness ultrasonic measurement system

Abstract

The invention discloses a cataract crystalline lens hardness ultrasonic measurement system, and relates to the technical field of ultrasonic diagnosis. A programmable logic device transmits a pulse to trigger a high-frequency ultrasonic transmission module, the high-frequency ultrasonic transmission module generates a high-voltage pulse to excite a monocrystal vibration broadband ultrasonic transducer, and the monocrystal vibration broadband ultrasonic transducer generates ultrasonic waves and transmits the ultrasonic waves to a human body; human body tissues reflects the ultrasonic waves, and the monocrystal vibration broadband ultrasonic transducer receives the ultrasonic echo waves; the ultrasonic echo waves are input into a preamplification receiving circuit; the preamplification receiving circuit preprocesses the ultrasonic echo waves to obtain the amplified ultrasonic echo waves; the amplified ultrasonic echo waves are input to a high-speed data analog-to-digital conversion module; the amplified ultrasonic echo waves are converted into a digital signal, and the programmable logic device stores the digital signal; the digital signal is utilized to complete A or P ultrasonic waveform detection, characteristic parameter extraction and crystalline lens attenuation coefficient computation, so that the final image and data are displayed; and the programmable logic device is connected with a terminal through a USB interface and a peripheral circuit.

Description

technical field [0001] The invention relates to the technical field of medical ultrasonic diagnosis, in particular to a measurement system for detecting the hardness of the lens of a cataract patient by using high-frequency ultrasonic waves. Background technique [0002] my country is a cataract-prone area. There are about 5 million patients blinded by cataract in the whole country, and it is showing an increasing trend year by year. Clinically, the hardness of the lens of cataract patients is divided into 5 grades, representing the severity of the disease. At present, phacoemulsification, as a routine cataract surgery, has been widely recommended by clinicians at home and abroad. However, the operation is difficult and the learning period is long, and the effect of the operation depends directly on the clinical experience of the doctor. The reason is that currently there is no dedicated and effective diagnostic method to accurately judge the hardness of the lens of catara...

AI Technical Summary

Problems solved by technology

This puts forward extremely high requirements on doctors' clinical experience and surgical operation level, which largely limits the popularization and promotion of this surgical plan.

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