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Enhanced multi-array-element focused endoscopic ultrasonic probe

An ultrasonic probe and sound wave technology, which is applied in the direction of material analysis, measuring devices, and instruments using sound waves/ultrasonic waves/infrasonic waves, can solve problems such as high cost, complicated production of concave focusing transducers, and inconvenient processing of concave surfaces, so as to improve performance. , the effect of increasing the echo, and the effect of the overall structure being small

Active Publication Date: 2014-10-15
北京乐普智影科技股份有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The concave focusing transducer can well meet the requirements of the endoscopic ultrasound system, but the production of the concave focusing transducer is relatively complicated and the cost is high, and the change of the focal point will bring inconvenience to the concave surface processing with different curvature radii

Method used

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  • Enhanced multi-array-element focused endoscopic ultrasonic probe
  • Enhanced multi-array-element focused endoscopic ultrasonic probe
  • Enhanced multi-array-element focused endoscopic ultrasonic probe

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Embodiment Construction

[0037] The spatial structure of the ultrasonic endoscopic transducer of the present invention is as follows: figure 1 As shown, its basic structure is composed of three single-array planar transducers 1, which are symmetrical as a whole, and a rectangular coordinate system is established with this transducer as the center, as shown in figure 2 As shown in , the acute angle formed by the emitting surfaces of the single array elements on both sides and the emitting surface of the middle single array element is denoted as a. The specific working circuit diagram of the present invention is as image 3 As shown in the figure, three single-array planar transducers 1 work in parallel, and two voltage regulator tubes 2 are connected in series with the single-array planar transducers 1 on both sides respectively, and the excitation signal 3 is loaded on both ends of the parallel circuit. It is a positive and negative rectangular pulse. According to the nature of parallel connection, ...

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Abstract

The invention provides an enhanced multi-array-element focused endoscopic ultrasonic probe, the focusing effect is realized by combination of different space positions of at least three single-array-element planar energy converters, concave focusing energy converters are replaced, the inconvenience of the concave focusing energy converters in the production process is solved, and by changing the relative position of the energy converters, the focusing function of the concave focusing energy converters with different curvature radius can be realized. Through design of the at least three single-array-element planar energy converters, multiple transmitting single receiving functions can be completed by use of two transmission signal lines, on the basis of ensuring the spatial size of the probe, echo signals are increased, and the single receiving can ensure the imaging accuracy.

Description

technical field [0001] The invention designs an ultrasonic transducer, especially an endoscopic ultrasonic transducer. Background technique [0002] The selection of an endoscopic ultrasound transducer needs to take into account both size and power requirements. The concave focusing transducer can well meet the requirements of the endoscopic ultrasound system, but the production of the concave focusing transducer is relatively complicated and the cost is high, and the change of the focal point will bring inconvenience to the concave surface processing with different curvature radii. If multiple single-array element planar transducers are used in combination, it is necessary to solve the problem of the contradiction between the number of signal lines and the control of transducer signals. The number of transducer signal lines is large, and the diameter of the probe casing will be greatly increased. The echoes received by the three single-array planar transducers are transmit...

Claims

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Application Information

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IPC IPC(8): G01N29/24
Inventor 周智峰白宝平邹慧玲
Owner 北京乐普智影科技股份有限公司
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