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Ultrasonographic device

A diagnostic equipment, ultrasonic technology, applied in the direction of acoustic wave diagnosis, infrasonic wave diagnosis, ultrasonic/sonic wave/infrasonic wave diagnosis, etc., which can solve the problems of equipment cost and size increase, power unit increase, reliability deterioration, etc.

Inactive Publication Date: 2006-07-19
KONICA MINOLTA INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, in the above-mentioned conventional ultrasonic diagnostic apparatus, since a plurality of power supplies and a high-speed power supply are required, the size of the power supply unit is increased, which leads to an increase in the cost and size of the apparatus, and further causes deterioration in reliability.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] figure 2 In Embodiment 1 of the present invention, the relationship between the driving waveform generated by the waveform generating device, its frequency spectrum, and the frequency characteristics of the ultrasonic generating device is shown;

[0018] image 3 In Embodiment 1 of the present invention, the relationship between the driving waveform generated by the waveform generating device, its frequency spectrum, and the frequency characteristics of the ultrasonic generating device is shown, wherein the variable cycle t2 is set between the frequency bands of the ultrasonic generating device Inside;

[0019] Figure 4 Shows a typical configuration block diagram of an ultrasonic diagnostic device according to Embodiment 2 of the present invention;

[0020] Figure 5 A block diagram showing a typical internal configuration of a waveform generating device in an ultrasonic diagnostic apparatus according to Embodiment 3 of the present invention;

[0021] Image 6 s...

Embodiment 2

[0039] Figure 4 A typical configuration block diagram of an ultrasonic diagnostic apparatus in Embodiment 2 of the present invention is shown.

[0040] exist Figure 4 Among them, the duty factor of the driving waveform generated by the waveform generating device 2 can be changed in order to control the sound power, which is similar to Embodiment 1. In this embodiment, according to the current mode information generated by the mode control unit 5, the waveform control unit 4 further determines the driving waveform to be generated by the waveform generating device 2 to correspond to the waveform information. For each mode, according to the current mode information to determine the waveform information.

[0041] Because of the given upper limit of the acoustic power, in B-mode and M-mode, which generally emphasize resolution, the peak value of the amplitude should increase as the wavenumber decreases. In Doppler mode (including two-dimensional Doppler mode), the emphasis is ...

Embodiment 3

[0045] Figure 5 A typical internal configuration block diagram of the waveform generating device 2 in the ultrasonic diagnostic apparatus in Embodiment 3 of the present invention is mainly given.

[0046] Figure 5 The waveform generating device 2 in can be applied to Embodiment 1 and Embodiment 2. Image 6 yes Figure 5 Waveform diagrams of signals at various sections in .

[0047] exist Figure 5 The middle waveform generating device 2 is composed of a basic waveform generating device 6 , a modulating wave generating device 7 , a multiplication device 8 and a driving device 9 .

[0048] Refer to the following Figure 5 with Image 6 The working principle of the waveform generating device 2 thus configured will be described. The basic waveform generating device 6 and the modulating wave generating device 7 are triggered by a trigger waveform A, and the waveforms output by these two devices are synchronized with each other. The basic waveform generator 6 generates a d...

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PUM

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Abstract

A small ultrasound diagnostic device is provided at a low cost that enables the appropriate control by a single power supply unit so as to give a predetermined transmission power to a driving waveform different for each mode without excess or deficiency and without affecting properties of the driving waveform. The ultrasound diagnostic device includes: an ultrasound generation unit (1) that transmits ultrasound; a waveform generation unit (2) that generates a single pulse or a burst pulse whose duty factor is variable in units of a time that is a period corresponding to a frequency outside a frequency band of the ultrasound generation unit (1) so as to drive the ultrasound generation unit (1); and a single power supply unit (3) that determines an amplitude of a driving waveform generated by the waveform generation unit (2). Thereby, an acoustic power of the transmitted ultrasound can be controlled without making the transmission amplitude variable.

Description

technical field [0001] The invention relates to an ultrasonic diagnostic equipment used in the medical field. Background technique [0002] Conventional ultrasonic diagnostic equipment, like those described in patents JP2001-087263A and JPH08(1996)-280674A, are already known. [0003] In general, ultrasonic diagnostic equipment uses a single B mode, M mode, Doppler mode (hereinafter referred to as D mode), color or two-dimensional Doppler mode (hereinafter referred to as C mode), or uses these modes blend mode. In this case, by controlling the transmission power, the surface temperature of the portion of the ultrasonic generating device in contact with the living body and the sound power transmitted from the ultrasonic generating device to the living body do not exceed predetermined values. Furthermore, the frequency, amplitude, and wave number of the driving waveform at the time of transmission are determined for each mode. Therefore, for the driving waveforms that vary ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B8/00B06B1/02
CPCA61B8/00B06B1/0215A61B2560/0214
Inventor 中村恭大内川晶子秋山恒西垣森绪好富英德
Owner KONICA MINOLTA INC
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