Two-dimensional array ultrasonic transducer based on three-dimensional ultrasonic imaging and preparation method for same

Abstract

The invention relates to the technical field of three-dimensional ultrasonic imaging and discloses a two-dimensional array ultrasonic transducer based on the three-dimensional ultrasonic imaging and a preparation method for the same. The two-dimensional array ultrasonic transducer comprises an insulated resin frame, an electric-conduction backer board, a piezoelectric plate and a printing circuit board, wherein N*N hollow channels filled with an electric-conduction adhesive are formed in the insulated resin frame; the electric-conduction backer board is disposed on the insulated resin frame; the piezoelectric plate is located on the electric-conduction backer board and comprises N*N piezoelectric array elements; and N*N array row pins which are correspondingly disposed in the N*N hollow channels respectively are disposed on the printing circuit board. By the electric-conduction adhesive, the piezoelectric array elements are electrically connected to the array row pins, so that the problem in complex wiring technologies of the array elements of the two-dimensional ultrasonic transducer is solved, and preparation cost is reduced. Meanwhile, the short-circuited problem happening when an interval between every two piezoelectric array elements is too small during wiring is avoided. In addition, the electric-conduction backer board can absorb useless sound waves on the back face of the piezoelectric plate, so that quality of the two-dimensional array ultrasonic transducer can be improved greatly.

Description

technical field [0001] The invention relates to the technical field of medical ultrasonic imaging, in particular to a two-dimensional array ultrasonic transducer based on three-dimensional ultrasonic imaging and a preparation method thereof. Background technique [0002] Real-time three-dimensional ultrasound imaging technology is one of the important means of medical imaging diagnosis today. This technology can improve the scanning frame rate and meet the high-quality imaging requirements. Compared with the traditional single-array element and one-dimensional array ultrasonic transducer, two The three-dimensional array phased array system is an effective means to solve the real-time three-dimensional imaging of ultrasound. It can focus in two directions, greatly improve the detection space resolution, and the data acquisition process is fast and stable. It does not need to move and rotate the ultrasonic transducer. Free deflection and focusing enable three-dimensional imagi...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a two-dimensional array ultrasonic transducer based on three-dimensional ultrasonic imaging, aiming to solve the problem of the complicated wiring process of the two-dimensional array ultrasonic transducer based on three-dimensional ultrasonic imaging in the prior art, resulting in high cost and difficult The problem of meeting actual needs

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