Portable blood sugar detector based on multi-ring array light sound sensor and testing method

Abstract

The invention relates to a portable non-trauma blood sugar detector based on multi-ring array optical acoustic induction technology and a detection method. The detector includes an optical radiation unit A comprising a laser generator, optical fiber, a focusing lens and a drive circuit; a signal processing unit B comprising an impedance matching circuit, a signal amplifying circuit, a signal filtering circuit, an A / D converting circuit, a pulse signal source and a signal processor; a testing induction unit C comprising a hollow multi-ring array ultrasonic sensor and a testing groove; an input key, a display screen and a cell. The detection method includes coating ultrasonic coupling liquid on finger which is to be tested and putting the finger into the testing groove. Due to employing the multi-ring array optical acoustic induction technology of forward receiving mode, continuous A-type dynamic focusing scan can be carried out along depth direction to monitor blood sugar content of human body and synchronously blood sugar optical acoustic data of multiple sites along depth direction can be provided. The detector has advantages of having no trauma when detecting, having no need of blood supply, employing miniaturized semiconductor laser tube as light resource, and having lower cost.

Description

technical field [0001] The invention relates to the technical fields of biomedical measurement and medical equipment, in particular to a portable non-invasive blood sugar detector and a detection method based on multi-ring array photoacoustic sensing. Background technique [0002] Diabetes is a worldwide frequently-occurring and common disease. It is the third most dangerous disease after cardiovascular disease and cancer. Long-term disturbance of blood sugar concentration can cause complications such as blindness and renal failure. Therefore, diabetes has become a threat to human beings. A big killer of life. To effectively control the disease, it is necessary to detect the blood sugar concentration of diabetic patients in real time, so as to determine the specific dosage and diagnosis plan, which has become a key technology in the diagnosis and treatment of diabetes. At present, invasive or minimally invasive interventional detection methods are still commonly used for bl...

AI Technical Summary

Problems solved by technology

At present, invasive or minimally invasive interventional detection methods are still commonly used for blood glucose testing. Although this method only requires a few microliters of peripheral blood and the corresponding test strips, the storage environment has a great impact on the test strips, and the pain makes patients still try to avoid this way

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