Ultrasonic blood testing method and device

A blood detection and ultrasound technology, used in blood flow measurement devices, ultrasonic/sonic/infrasonic diagnosis, sonic diagnosis, etc., can solve the problems of inaccurate calculation, low signal-to-noise ratio of echo signals, and increased patient pain, and achieve improved The effect of signal-to-noise ratio, real-time detection, accurate and effective measurement

Active Publication Date: 2022-05-20
SUZHOU INST OF BIOMEDICAL ENG & TECH CHINESE ACADEMY OF SCI
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  • Application Information

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Problems solved by technology

[0004] The current in vitro blood detection device mainly has the following disadvantages: first: the method of destructive detection is often used, and the blood of the patient needs to be extracted to detect, which increases the pain of the patient and requires professional operation
Second, most of the existing testing instruments are professional testing equipment, which is inconvenient for daily use by patients
However, no researchers have used this met

Method used

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  • Ultrasonic blood testing method and device
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  • Ultrasonic blood testing method and device

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Effect test

Embodiment 1

[0054] An ultrasonic blood detection method, the general idea of ​​the method is:

[0055] Ultrasonic transmission and ultrasonic echo signal reception are carried out by using a high-frequency miniature linear array transducer with beam deflection transmission and beam synthesis transmission functions;

[0056] The red blood cells in the blood of the test subject are calculated as the average distance of the scattering elements of the scattering elements through the received ultrasonic echo signals, and the concentration of the red blood cells in the blood of the test subject is evaluated by comparing with the normal blood flow.

[0057] Among them, the ultrasonic echo signal is first preprocessed by amplification, filtering, A / D conversion, etc., and then the average spacing of scattering elements is calculated.

[0058] Wherein, several array elements are arranged on the high-frequency miniature linear array transducer. According to different detection parts, it can be des...

Embodiment 2

[0075] Based on the method of Embodiment 1, an ultrasonic blood detection device is provided, which adopts the method of Embodiment 1 to detect the concentration of red blood cells in blood vessels on the body surface by ultrasonic detection. refer to figure 1 and 2 , the device includes a detection ring and a host.

[0076] Among them, the detection ring includes an ultrasonic transmitting and receiving probe and a fixed ring, and the ultrasonic transmitting and receiving probe is a high-frequency miniature linear array with beam deflection transmitting and beam forming transmitting functions for transmitting ultrasonic waves and receiving ultrasonic echo signals For the transducer, the number of array elements set on the high-frequency miniature line array transducer is 8, 16, 24 or 32. In the present invention, the high-frequency miniature linear array transducer brings at least three benefits: first, the size of the high-frequency linear array transducer can be processed...

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Abstract

The invention discloses an ultrasonic blood detection method and device. The method comprises: adopting a high-frequency miniature linear array transducer with functions of beam deflection emission and beam synthesis emission to transmit ultrasonic waves and receive ultrasonic echo signals; The ultrasonic echo signal calculates the red blood cells in the blood of the test subject as the average spacing of the scattering elements, and compares it with the normal blood flow to evaluate the concentration of red blood cells in the blood of the test subject. The present invention utilizes the characteristics of deflection and emission of linear array transducers to realize accurate and effective measurement of blood flow velocity (macroscopic characteristics), utilizes the characteristics of beam forming of linear array transducers to improve the signal-to-noise ratio of echo signals, and utilizes high-frequency ultrasonic spatial resolution High characteristics realize the characterization (microscopic characteristics) of the average distance between red blood cells in blood, so as to deduce the change of blood concentration; two characteristics of flowing blood can be obtained at the same time: flow velocity and concentration, which provides more information for blood evaluation.

Description

technical field [0001] The invention relates to the technical field of medical lesion detection and auxiliary diagnosis, in particular to an ultrasonic blood detection method and device. Background technique [0002] Color Doppler ultrasound technology has been clinically applicable to the diagnosis of cardiovascular diseases, inflammatory lesions of body surface organs and gynecological diseases [1]. Doppler ultrasound can reflect different flow velocities and different states of blood flow, including laminar flow, eddy current, and turbulent flow, and has the advantages of non-invasive, non-radiative, fast, and cheap. [2] [0003] However, some diseases will cause the imbalance of red blood cells in the blood, resulting in a decrease or increase in the number of red blood cells, resulting in anemia or polycythemia, such as leukemia, hemolytic anemia, early thrombosis, etc. [3,4] The diagnosis of these diseases is often difficult to diagnose by detecting changes in blood ...

Claims

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Application Information

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IPC IPC(8): A61B8/06
CPCA61B8/06A61B8/488
Inventor 江挺益崔崤峣焦阳邵维维李昕泽
Owner SUZHOU INST OF BIOMEDICAL ENG & TECH CHINESE ACADEMY OF SCI
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