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Ultrasonograph

A diagnostic device, ultrasonic technology, applied in the direction of acoustic wave diagnosis, infrasonic wave diagnosis, ultrasonic/sonic wave/infrasonic wave diagnosis, etc., which can solve problems such as freezing and inaccurate judgment

Inactive Publication Date: 2008-11-12
HITACHI LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, with the ultrasonic diagnostic apparatus described in Patent Document 1, when no operation is performed from the console after a certain period of time, it is estimated that the probe is in the air state, so the judgment that the probe is in the air state may be inaccurate.
For example, when the probe is brought into contact with the subject and a diagnosis is made after a relatively long period of time, since there is no command from the console, it is assumed that the probe is placed in the air, and there is a problem of so-called starting to freeze.

Method used

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  • Ultrasonograph
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Experimental program
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Embodiment approach 1

[0026] First, a first embodiment for judging that the probe is placed in the air will be described with reference to FIGS. 1 to 7 .

[0027] As shown in FIG. 1 , the ultrasonic diagnostic apparatus 1 of the present embodiment is constituted by having the following constituent elements, that is, a probe 10 including a transmission unit and a circuit for receiving signals, an AD conversion unit, and a phasing and adding unit. The transmitting and receiving signal unit 12 includes an image forming unit, a frame memory as an image storage unit, a B image forming unit 17 including a DSC (Digital Scan Converter), a Doppler image forming unit 19 and a CFM forming unit 21, and synthesizes Synthesizing unit 23 for these images, judging unit 22 for judging that the probe is placed in the air, display unit 25 including a monitor, control unit 26 for controlling these components, and console 30 . The control unit 26 has a change control function for outputting a command to the transmissio...

Embodiment approach 2

[0055] A second embodiment of an ultrasonic diagnostic apparatus to which the present invention is applied will be described with reference to FIGS. 8 to 10 . The difference between this embodiment and the first embodiment is that, instead of judging that the probe 10 is in the air based on the brightness information of the B image, the probe 10 is detected in the air based on the Doppler information or the CFM image. However, the same functions and configurations as those of the first embodiment are denoted by the same reference numerals, and description thereof will be omitted.

[0056] As shown in FIG. 8 , the Doppler signal judging unit 14 of the ultrasonic diagnostic apparatus 1 is configured to be able to make judgments using the Doppler signal. The Doppler signal determination unit 14 includes image memories 34 - 1 to 34 - n , a Doppler dispersion circuit and an addition circuit (not shown), and a dispersion value determination unit 35 . The RF data output from the pha...

Embodiment approach 3

[0065] use Image 6 , 7(B), Figure 12 A third embodiment of an ultrasonic diagnostic apparatus to which the present invention is applied will be described. The difference between this embodiment and the first embodiment and the second embodiment is that when it is detected that the probe 10 is placed in the air, the energy of the driving signal of the probe 10 is reduced below the set value, instead of starting ultrasonic transmission. System freeze. Therefore, the same functions and configurations as those of the first embodiment and the second embodiment are denoted by the same reference numerals and descriptions thereof are omitted.

[0066] In this embodiment, first, the condition of the drive signal when the temperature of the probe 10 placed in the air does not rise is measured. For example, whether or not the temperature of the probe 10 has risen is measured by changing the transmission voltage, transmission wave number, repetition frequency, and scanning range of t...

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PUM

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Abstract

An ultrasonograph comprising a probe (10) for transmitting / receiving an ultrasonic wave to / form a subject, a transmitting section (12) for supplying a drive signal to the probe (10), a receiving section (12) for receiving a reflection echo signal outputted from the probe (10), image constructing sections (17, 19, 21) for reconstructing a diagnosis image from the received reflection echo signal, a displaying section (25) for displaying the reconstructed diagnosis image, and a control section for controlling the other sections, wherein the rise of temperature of the probe (10) is suppressed by adequately judging whether the probe (10) is left in the air or not. The ultrasonograph further comprises a judging section (22) for judging from diagnosis image information whether or not the probe (10) is left in the air. If the judging section (22) judges that the probe (10) is left in the air, the control section (26) controls the drive signal supplied from the transmitting section to the probe (10) so as to suppress the rise of temperature of the probe (10).

Description

technical field [0001] The present invention relates to an ultrasonic diagnostic device, in particular to a technique for preventing deterioration of a probe. Background technique [0002] Ultrasonic diagnostic equipment is to make the probe touch the body surface of the subject, repeatedly irradiate ultrasonic waves to the observed part through the probe, receive the return echo signal sent from the subject, and reconstruct the ultrasonic image (for example, a cross-sectional image, etc.) structure. [0003] In such an ultrasonic diagnostic apparatus, for example, when the probe is separated from the body surface of the subject, when the ultrasonic wave is continuously transmitted (hereinafter referred to as the state placed in the air), the energy of the emitted ultrasonic wave becomes Thermal energy, the temperature rise near the surface of the probe (for example, ultrasonic transmission window, etc.). As a result, a thermal cycle occurs in the probe, which may cause de...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B8/00
Inventor 岸本真治
Owner HITACHI LTD