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A linear array ultrasonic probe

An ultrasonic probe and linear array technology, applied in the field of medical devices, can solve the problems of high cost, complicated manufacturing process, and application limitations, and achieve the effects of low hardware cost, uniform beam, fast and high frame rate imaging

Active Publication Date: 2018-05-01
SHENZHEN INST OF ADVANCED TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The two-dimensional linear array ultrasound probe can flexibly control the beam, and in principle can realize the three-dimensional scanning of the entire tissue under the probe, but its application is greatly limited due to its high cost and complicated manufacturing process.

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  • A linear array ultrasonic probe
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Embodiment Construction

[0017] The present application will be described in further detail below through specific embodiments in conjunction with the accompanying drawings.

[0018] The commonly used linear array ultrasonic probe has focus in the elevation direction, and the focus depth varies with different probes. This application refers to this type of linear array ultrasonic probe as an elevation-focused probe (Elevation-Focused Probe, EFP). By improving the matching layer of the linear array probe and the longitudinal radian of the acoustic lens, it can produce a fully meaningful plane wave emission sound field, which is called the non-elevation-focused probe (Non-Elevation-Focused Probe, NEFP).

[0019] This application mainly improves the traditional linear array ultrasonic probe. When the traditional linear array ultrasonic probe emits plane waves, it only adopts non-delayed emission in the transverse direction (the width direction of the probe) to form a plane wave, while there is a plane wav...

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Abstract

The present application discloses a linear array ultrasonic probe, which includes a housing, an array of array elements, a matching layer and an acoustic lens. The housing is provided with a cavity and an opening is provided at the front end, and the acoustic lens is arranged on the opening. The array element array and the matching layer are arranged in the cavity, and the matching layer is sandwiched between the array element array and the acoustic lens, and the ultrasonic beam passing through the acoustic lens is not focused in the elevation direction , enabling the ultrasonic beam to realize plane wave emission. Since the ultrasonic beam passing through the acoustic lens has no focus in the elevation direction, the ultrasonic beam can be emitted as a plane wave, making the beam more uniform within the data acquisition range, and the imaging range is expected to be extended from the original one surface to three-dimensional scanning. Through the composite imaging algorithm, It can better realize fast and high frame rate imaging, and the hardware cost is much lower than that of a two-dimensional transducer.

Description

technical field [0001] The present application relates to the field of medical devices, in particular to a linear array ultrasonic probe. Background technique [0002] With the emergence of imaging technologies such as brain functional imaging, real-time three-dimensional ultrasound imaging, and high-speed Doppler blood flow velocity and flow field imaging, the requirements for imaging frame rates have become higher. Currently, ultrasound imaging probes on the market mostly use electronic scanning. A complete image is generated by performing multiple focused transmissions. The frame rate of this mode of imaging is low, and it is difficult to meet the new imaging requirements. Realizing high frame rate imaging of ultrasonic instruments has become an urgent demand in the market. Plane wave transmission is a method that can quickly increase the imaging frame rate. The frame rate of imaging has been improved. In order to improve the quality of plane wave imaging, some scholars...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B8/00
Inventor 郭宁王丛知郑海荣叶为锵
Owner SHENZHEN INST OF ADVANCED TECH