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Transmitting module of ultrasonic diagnostic device

An ultrasonic diagnostic instrument and transmitting module technology, which is applied in the directions of sonic diagnosis, infrasound diagnosis, ultrasonic/sonic/infrasonic diagnosis, etc., can solve the problem of narrow emission pulse, submerged system noise, and inconspicuous unipolar or bipolar pulse echo characteristics, etc. problem, to achieve the effect of ensuring the emission energy, reducing the probability of noise submersion, and increasing the detection depth

Inactive Publication Date: 2010-01-13
SHENZHEN LANDWIND IND
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  • Description
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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a transmitting module of an ultrasonic diagnostic instrument, which overcomes the defect that the transmitting pulse of the transmitting module of an ultrasonic diagnostic instrument in the prior art is too narrow, which affects the detection depth of human tissue, and the simple unipolar or bipolar pulse-echo characteristics Defects that are not obvious and are easily drowned out by system noise

Method used

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  • Transmitting module of ultrasonic diagnostic device
  • Transmitting module of ultrasonic diagnostic device
  • Transmitting module of ultrasonic diagnostic device

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Embodiment Construction

[0019] Below according to accompanying drawing and embodiment the present invention will be described in further detail:

[0020] Such as figure 1 As shown, the transmitting module of the ultrasonic diagnostic instrument of the present invention includes a transmitting control unit and a transmitting unit connected thereto. The transmitting unit adopts two bipolar voltages (where HVNN1=-HVPP1, HVNN2=-HVPP2=(1 / 2)*HVPP1) and one 0V (GND) potential, a total of five levels are used as the output voltage of the transmitting pulse flat. The emission control unit outputs five control signals to control the output of the five levels respectively, and its truth table is shown in Table 1:

[0021]

[0022] Table 1

[0023] Such as figure 2 As shown, the launch control unit uses FPGA (Field Programmable GateArray, Field Programmable Gate Array) to generate 5 logic control signals, and its control mode is shown in Table 1. It should be noted that for the 5 control signals, it mus...

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Abstract

The invention discloses an emission module for ultrasonic diagnosis equipment, comprising an emission control unit and a transmit element connected with the emission control unit; wherein, the emission control unit is used for generating control signals transmitted to the transmit element; the transmit element is used for transmitting pulse waveform which comprises at least five different levels according to the received control signals. The invention has the advantages of forming various forms and types of wide pulse waveforms, ensuring the transmitting energy of the emission module, and increasing the acquisition depth of human tissues by adopting different pulse waveforms which comprises at least five different levels; moreover, the formed single pulse or bipolarity pulse has an obvious echo characteristic, and reduces the probability greatly that the echo signal is submerged by noise.

Description

technical field [0001] The invention relates to the technical field of ultrasonic diagnosis, in particular to a transmitting module of an ultrasonic diagnostic instrument. Background technique [0002] In the ultrasonic system in the prior art, the pulse waveform generated by the switching pulse generator is transmitted to the ultrasonic transducer. In order to improve the longitudinal resolution of the ultrasonic system on human tissue, it is usually required to use narrow-width pulses; however, narrow-width pulses bring about a reduction in transmitted energy, resulting in a reduction in the detection depth of human tissue by the ultrasonic system. [0003] The transmitting pulse of the ultrasonic system in the prior art adopts a continuous two-level or continuous three-level waveform, and can only generate simple unipolar or bipolar pulses. This transmitted pulse is converted into an ultrasonic signal by the transducer and enters the human tissue, and the characteristics...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B8/00
Inventor 兰海刘明宇
Owner SHENZHEN LANDWIND IND
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