Two-dimensional ultrasonic area array probe and manufacturing method thereof

Abstract

The invention discloses a two-dimensional ultrasonic area array probe, which comprises a piezoelectric array, matched layers, backing materials, decoupling materials, a plurality of connection ports and conductive electrodes, wherein the piezoelectric array consists of a plurality of piezoelectric units which are arranged at equal intervals; a strip of matched layer covers each row or column of piezoelectric units on the piezoelectric array, and is used for realizing matching with the acoustic impedance of air; the backing materials are positioned below each row or column of piezoelectric units of the piezoelectric array, and are used for absorbing ultrasonic waves downwards transmitted by the piezoelectric array; the decoupling materials are filled into gaps among the piezoelectric units of the piezoelectric array; one connection port is shared by each row or column of piezoelectric units in the piezoelectric array, and is used for connection with an external wire; and the conductive electrodes are used for electrically connecting each strip of backing material and each strip of matched layer with the connection ports. The invention also discloses a manufacturing method of the two-dimensional ultrasonic area array probe. According to the two-dimensional ultrasonic area array probe disclosed by the invention, the conventional connection technology is optimized, the number of connecting wires is decreased, the process difficulty is lowered, and the accuracy and manufacturing efficiency of the two-dimensional ultrasonic area array probe are improved.

Description

technical field [0001] The invention belongs to the field of medical ultrasonic imaging equipment preparation, and in particular relates to a two-dimensional ultrasonic area array probe and a preparation method thereof. Background technique [0002] Ultrasonic imaging refers to the use of ultrasonic waves to irradiate the human body, and obtain visible images of the nature and structure of human tissue by receiving and processing echoes that carry characteristic information of human tissue or structure properties. Ultrasound, CT and MRI are commonly used diagnostic techniques in clinical practice today. Compared with the latter two, ultrasound not only has no working environment restrictions, no harm to the human body, but also is cheaper, so it is the first choice in clinical applications. In addition, ultrasound imaging technology can also provide navigation for clinical operations. [0003] The traditional ultrasound is a two-dimensional ultrasound, and the image display...

AI Technical Summary

Problems solved by technology

[0006] One of the objects of the present invention is to provide a two-dimensional ultrasonic surface array probe, which adopts the array wiring method, and the working state of each array element can be controlled according to the connection or d

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