JP2006247039A - Ultrasonic diagnostic equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide ultrasonic diagnostic equipment where efficient photographing is carried out easily by restricting the display area of an image displayed on a display surface. <P>SOLUTION: In the ultrasonic diagnostic equipment which generates the image of a subject based on an echo signal obtained by receiving ultrasonic waves reflected from the patient to whom the ultrasonic waves are transmitted, a field angle adjusting part 42 adjusts the field angle of a display part 41 when the display part 41 displays the generated image of the subject on the display surface. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an ultrasound diagnostic apparatus, and in particular, displays an image of a subject generated based on echo signals obtained by transmitting ultrasound to the subject and receiving ultrasound reflected from the subject. The present invention relates to an ultrasonic diagnostic apparatus for displaying on a surface.

  The ultrasonic diagnostic apparatus transmits an ultrasonic wave to the subject, generates an image of the tomographic plane of the subject based on an ultrasonic echo signal reflected and received from the subject, and generates the generated image. It is known as a display device (for example, see Patent Document 1).

The ultrasonic diagnostic apparatus has various operation modes such as a B mode, a CFM (Color Flow Mapping) mode, and a PWD (Pulse Wave Doppler) mode. The ultrasonic diagnostic apparatus has an advantage that real-time image generation can be easily performed. Therefore, the ultrasonic diagnostic apparatus is particularly used in medical fields such as fetal examination and heart examination.
JP 2002-177270 A

  In the ultrasonic diagnostic apparatus, an image of the tomographic plane of the subject generated as described above is displayed on a display surface of a display device such as an LCD (Liquid Crystal Display) panel. In such a case, an image displayed on the display surface of the display device can be viewed in a wide viewing angle range.

  For this reason, an image displayed on the display surface may be seen by a person other than the operator. For example, in medical applications, a subject may see an image displayed on a display surface when an operator is photographing. In such a case, the subject may move, and it may be difficult for the operator to efficiently perform imaging.

  Therefore, an object of the present invention is to provide an ultrasonic diagnostic apparatus that can easily perform photographing efficiently by limiting the display area of an image displayed on a display surface.

  In order to achieve the above object, according to the ultrasonic diagnostic apparatus of the present invention, based on an echo signal obtained by transmitting an ultrasonic wave to a subject and receiving the ultrasonic wave reflected from the subject, An ultrasonic diagnostic apparatus for generating an image of the subject, comprising: a display unit that displays the image of the subject on a display surface; and a viewing angle adjustment unit that adjusts a viewing angle on the display surface of the display unit. Have.

  ADVANTAGE OF THE INVENTION According to this invention, the ultrasonic diagnostic apparatus which restrict | limits the display area of the image displayed on a display surface, and can perform imaging | photography efficiently can be provided.

<Embodiment 1>

  A first embodiment according to the present invention will be described.

  1 and 2 are diagrams showing a configuration of an ultrasonic diagnostic apparatus 1 according to the first embodiment of the present invention. Here, FIG. 1 is a front view schematically showing the overall configuration of the ultrasonic diagnostic apparatus 1 in the first embodiment according to the present invention. FIG. 2 is a block diagram showing the main part of the ultrasonic diagnostic apparatus 1 according to the first embodiment of the present invention.

  As shown in FIG. 1, the ultrasonic diagnostic apparatus 1 of the present embodiment includes a mounting table 2, an ultrasonic diagnostic apparatus main body 3, and a display device 4, and transmits ultrasonic waves to a subject S. An image of the subject S is generated based on an echo signal obtained by receiving an ultrasonic wave reflected from the subject S. Each part will be described sequentially.

  The mounting table 2 will be described.

  The mounting table 2 has a table formed so that the mounting surface is along a horizontal plane (xy plane), and the subject S is placed on the mounting surface of the table and supports the subject S.

  The ultrasonic diagnostic apparatus main body 3 will be described.

  As shown in FIG. 1, the ultrasonic diagnostic apparatus main body 3 includes an ultrasonic probe 31, a central processing unit 32, and an operation unit 33. As illustrated in FIG. 2, the central processing unit 32 includes a transmission / reception unit 321, an image generation unit 322, a storage unit 323, and a control unit 324. Each part of the ultrasonic diagnostic apparatus main body 3 will be described.

  The ultrasonic probe 31 is formed by arranging a plurality of ultrasonic transducers (not shown) uniformly in a matrix. In the ultrasonic probe 31, the ultrasonic transducer is made of, for example, PZT (lead zirconate titanate) ceramics, converts an electric signal into a sound wave, transmits the sound wave, and converts the received sound wave into an electric signal. To do. The ultrasonic probe 31 is used by contacting the surface on which the ultrasonic transducer is formed with the surface of the subject S. The ultrasonic probe 31 transmits ultrasonic waves from the ultrasonic transducer into the subject S based on a drive signal transmitted from the transmission / reception unit 321 according to a command from the control unit 324. Then, the ultrasonic wave reflected from the subject S to which the ultrasonic wave has been transmitted is received by the ultrasonic transducer, and an echo signal is output.

  The central processing unit 32 includes a transmission / reception unit 321, an image generation unit 322, a storage unit 323, and a control unit 324, and performs various data processing.

  The transmission / reception unit 321 of the central processing unit 32 is configured to include a transmission / reception circuit that transmits and receives ultrasonic waves. The transmission / reception unit 321 is connected to the ultrasonic probe 31, and transmits an ultrasonic wave from the ultrasonic transducer of the ultrasonic probe 31 to the subject S based on a command from the control unit 324, and from the subject S. The reflected ultrasonic wave is received by an ultrasonic transducer to obtain an echo signal. For example, the transmission / reception unit 321 performs scanning by an electronic convex scanning method. Then, the transmission / reception unit 321 outputs the generated echo signal to the image generation unit 322. Specifically, the transmission / reception unit 321 sequentially switches the ultrasonic transducer of the ultrasonic probe 31 so as to move and scan the ultrasonic beam to receive the ultrasonic wave, and depends on the received ultrasonic wave. The data is subjected to processing such as amplification, delay, and addition to generate an echo signal, which is output to the image generation unit 322.

  The image generation unit 322 of the central processing unit 32 generates an image of the subject S based on the echo signal obtained by the transmission / reception unit 321. The image generation unit 322 includes, for example, a computer and a program. The image generation unit 322 performs image processing on an echo signal from the transmission / reception unit 321 based on a command from the control unit 324 and generates an image of the tomographic plane of the subject S. Generated for each frame in chronological order. Specifically, the image generation unit 322 includes a logarithmic amplifier and an envelope detector, detects the envelope after logarithmically amplifying the echo signal output from the transmission / reception unit 321, for example, an image in B mode for each frame Generate. The image generation unit 322 is connected to the storage unit 323, and sequentially outputs the frame images generated as described above to the storage unit 323. For example, the image generation unit 322 generates an image of the fetal head based on an echo signal obtained by scanning the fetal head in the abdomen of the pregnant woman using the ultrasonic probe 31, and the storage unit 323. An image of the navel fetal head is output and stored.

  The storage unit 323 of the central processing unit 32 is configured to include, for example, a cine memory and an HDD, and stores an image generated by the image generation unit 322. The storage unit 323 is connected to the image generation unit 322, and based on an instruction from the control unit 324, temporarily stores a plurality of frames of images generated by the image generation unit 322 in the cine memory, and then outputs them to the HDD And remember. For example, the storage unit 323 stores a frame image corresponding to a moving image for 2 minutes in a cine memory, and outputs and stores a frame image of the moving image for 2 minutes to the HDD. The cine memory of the storage unit 323 is connected to the display unit 41, and the frames of moving images stored in the cine memory are sequentially displayed on the display unit 41 in real time. Similarly, the HDD of the storage unit 323 is also connected to the display unit 41, and displays image data of an image that is a frame of a moving image stored in the HDD based on a command input to the operation unit 33 by the operator. The image is output to the unit 41, and the display unit 41 displays the image.

  The control unit 324 of the central processing unit 32 includes, for example, a computer and a program, and is connected to each unit. The control unit 324 gives a control signal to each unit based on the operation signal from the operation unit 33 and controls the operation.

  The operation unit 33 includes, for example, an input device such as a keyboard, a touch panel, a track ball, a foot switch, and a voice input device. The operation unit 33 receives operation information from the operator and outputs a command to the control unit 324 based on the operation information.

  The display device 4 will be described.

  As shown in FIG. 1, the display device 4 includes a display unit 41, a viewing angle adjustment unit 42, and a display unit support base 43.

  The display unit 41 acquires the image generated by the image generation unit 322 from the storage unit 323 and displays it. The display unit 41 includes, for example, an LCD device (not shown) having a flat display surface and a DSC (Digital Scan Converter). As shown in FIG. 2, the display unit 41 is connected to the storage unit 323. Based on a command from the control unit 324, the display unit 41 converts an image stored in the cine memory of the storage unit 323 into a display signal by using the DSC. The image generated by the image generation unit 322 is displayed in real time on the display surface of the apparatus. The display unit 41 is connected to the HDD of the storage unit 323, and receives image data of an image that is a frame of a moving image stored in the HDD based on a command input to the operation unit 33 by an operator. The image is displayed on the screen. For example, the display unit 41 acquires a tomographic image of the fetal head in the abdomen of the pregnant woman from the storage unit 323 and displays the image on the screen.

  The viewing angle adjustment unit 42 adjusts the viewing angle on the display surface of the display unit 41. That is, the viewing angle adjustment unit 42 adjusts the angle range displayed by the display unit 41. The viewing angle adjustment unit 42 includes a viewing angle adjustment filter that refracts light from an image displayed on the display surface of the display unit 41. In the viewing angle adjustment unit 42, this viewing angle adjustment filter is provided on the display surface of the display unit 41, and the viewing angle on the display surface of the display unit 41 is adjusted by this viewing angle adjustment filter.

  FIG. 3 is a top view showing a state in which an image is displayed by the viewing angle adjustment unit 42 adjusting the viewing angle in the first embodiment of the present invention.

  As shown in FIG. 3, in this embodiment, the viewing angle adjustment unit 42 sets the viewing angle of the display unit 41 so that the display unit 41 displays a smaller angle range than the far side on the side closer to the mounting table 2. adjust. Specifically, the viewing angle on the side close to the mounting table 2 is adjusted so that it can be seen from an angle θ1 from a direction perpendicular to the display surface of the display unit 41 to a direction inclined toward the side close to the mounting table 2. Further, the viewing angle on the side far from the mounting table 2 is an angle from the direction perpendicular to the display surface of the display unit 41 to the direction tilted to the far side from the mounting table 2, and the viewing field near the mounting table 2. Adjustment is made so that an angle θ2 that is smaller than the angle can be seen. Here, the viewing angle adjustment unit 42 adjusts the viewing angle on the display surface of the display unit 41 using, for example, a plurality of viewing angle adjustment filters having different light refracting directions.

  The display unit support base 43 supports the display unit 41 so that the display direction of the image on the display surface of the display unit 41 can be changed. Specifically, the display unit support base 43 pivotally supports the display unit 41. For example, the display unit support base 43 can be rotated about the vertical direction z and the horizontal direction x parallel to the display surface is the axis. The display unit 41 is supported so as to be rotatable along a direction y perpendicular to the display surface.

  As described above, in the present embodiment, the display unit 41 displays an image of the subject S generated based on the echo signal that can be received from the ultrasound reflected from the subject S to which the ultrasound is transmitted. When displaying on the screen, the viewing angle adjustment unit 42 adjusts the viewing angle on the display surface of the display unit 41. Here, the viewing angle adjustment unit 42 adjusts the viewing angle of the display unit 41 so that an image is displayed in a smaller angle range on the side closer to the mounting table 2 on which the subject S is placed than on the far side. Yes. For this reason, this embodiment can prevent the image displayed on the display surface from being seen by the subject when the operator is photographing. Therefore, the present embodiment can efficiently perform shooting.

<Embodiment 2>
A second embodiment according to the present invention will be described.

  FIG. 4 is a block diagram illustrating a main part of the ultrasonic diagnostic apparatus 1 according to the second embodiment of the present invention.

  As shown in FIG. 4, in the central processing unit 32 of the ultrasonic diagnostic apparatus main body 3, the control unit 324 includes a viewing angle setting unit 324a, which is different from the first embodiment. Further, the viewing angle control unit 42 in the display device 4 is different in configuration from the first embodiment. Except for this point, the second embodiment is the same as the first embodiment. For this reason, description is abbreviate | omitted about the overlapping part.

  The viewing angle setting unit 324a included in the control unit 324 of the central processing unit 32 sets the viewing angle adjusted by the viewing angle adjustment unit 42 based on a command from the operator input to the operation unit 33. Here, as will be described later, the viewing angle setting unit 324a sets the viewing angle that is adjusted by the viewing angle setting unit 324a in which the refraction direction in which the light from the image of the display unit 41 is refracted changes according to the control signal. Then, the viewing angle setting unit 324a outputs a control signal corresponding to the set viewing angle to the viewing angle adjustment unit 42, and causes the viewing angle adjustment unit 42 to adjust the viewing angle.

  The viewing angle adjustment unit 42 includes, for example, a pair of transparent substrates (not shown) facing each other, a pair of transparent electrodes (not shown) formed on the opposing surfaces of the pair of substrates, and the pair And a viewing angle adjusting filter including a liquid crystal layer (not shown) in which liquid crystal molecules are aligned. The viewing angle adjusting unit 42 applies a voltage to the liquid crystal layer of the viewing angle adjusting filter based on the control signal output from the viewing angle setting unit 324a to change the alignment direction of the liquid crystal molecules, and the display unit 41 The direction of refraction of light refracted by the image changes, and the viewing angle is adjusted.

  FIG. 5 is a top view showing a state in which an image is displayed by the viewing angle adjustment unit 42 adjusting the viewing angle in the second embodiment according to the present invention. 5A shows a case where the viewing angle is reduced, and FIG. 5B shows a case where the viewing angle is increased.

  As shown in FIG. 5, when the operator inputs a command for reducing the viewing angle in the horizontal direction x parallel to the display surface to the operation unit 33, the viewing angle setting unit 324a is based on the input command. The control signal is output to the viewing angle adjustment unit 42. Based on this, the viewing angle adjustment unit 42 changes the alignment direction of the liquid crystal layer of the viewing angle adjustment filter, and adjusts the viewing angle α1 to be smaller than the default viewing angle α0, for example. . On the other hand, when the operator inputs a command to increase the viewing angle to the operation unit 33, similarly, the viewing angle setting unit 324a outputs a control signal corresponding to the viewing angle based on the input command. Output to the angle adjustment unit 42. In the viewing angle adjustment unit 42, the orientation direction of the liquid crystal layer of the viewing angle adjustment filter changes, and the viewing angle is adjusted so that, for example, the viewing angle α2 is larger than the default viewing angle α0.

  As described above, in this embodiment, the viewing angle setting unit 324a sets the viewing angle adjusted by the viewing angle adjustment unit 42 based on a command from the operator. Then, the viewing angle adjustment unit 42 adjusts the viewing angle on the display surface of the display unit 41 so as to correspond to the viewing angle set by the viewing angle setting unit 324a. For this reason, this embodiment can prevent the image displayed on the display surface from being seen by the subject when the operator is photographing. Therefore, the present embodiment can efficiently perform shooting.

<Embodiment 3>
A third embodiment according to the present invention will be described.

  FIG. 6 is a block diagram illustrating a main part of the ultrasonic diagnostic apparatus 1 according to the third embodiment of the present invention.

  As shown in FIG. 6, in the central processing unit 32 of the ultrasonic diagnostic apparatus main body 3, the control unit 324 includes an adjustment availability setting unit 324b and a threshold setting unit 324c, which is different from the second embodiment. Further, the display device 4 includes a display direction detection unit 44 and is different from the second embodiment. In the present embodiment, the operation of the control unit 324 is different from that in the second embodiment. Except for this point, the present embodiment is the same as the second embodiment. For this reason, description is abbreviate | omitted about the overlapping part.

  An adjustment availability setting unit 324b included in the control unit 324 of the central processing unit 32 sets the availability of an operation in which the viewing angle adjustment unit 42 adjusts the viewing angle based on a command from the operator input to the operation unit 33. Then, the adjustment availability setting unit 324b outputs a control signal regarding the set operation availability to the viewing angle adjustment unit 42, and adjusts the viewing angle to the viewing angle adjustment unit 42 so as to correspond to the adjustment operation availability information. The operation to perform is performed.

  The threshold setting unit 324c included in the control unit 324 of the central processing unit 32 operates the threshold when the viewing angle adjustment unit 42 adjusts the viewing angle based on the display direction of the display unit 41 detected by the display direction detection unit 44. This is set based on an instruction from the operator input to the unit 33. Then, the threshold setting unit 324c outputs a control signal for the set threshold to the viewing angle adjusting unit 42, and the viewing angle adjusting unit 42 corresponds the viewing angle on the display surface of the display unit 41 to the set threshold. To adjust.

  The display direction detection unit 44 of the display device 4 includes an angle sensor, and the angle of the image display direction on the display surface of the display unit 41 supported by the display unit support base 43 is detected by the angle sensor. Then, the display direction detection unit 44 outputs data about the detected angle of the display direction to the control unit 324. Then, based on the display direction angle detected by the display direction detection unit 44, the control unit 324 causes the viewing angle adjustment unit 42 to adjust the viewing angle on the display surface of the display unit 41.

  The image display method of this embodiment will be described below. Here, an image of the subject S is displayed using the above-described ultrasonic diagnostic apparatus 1.

  7 and 8 are diagrams for explaining an image display method according to the third embodiment of the present invention. Here, FIG. 7 is a flowchart for explaining the image display method in the third embodiment of the present invention. On the other hand, FIG. 8 is a top view showing a state when the viewing angle is adjusted in the third embodiment according to the present invention.

  As shown in FIG. 7, first, setting of whether or not the viewing angle can be adjusted is performed (S11).

  Here, based on the command from the operator input to the operation unit 33, the adjustment availability setting unit 324b sets whether or not the viewing angle adjustment unit 42 can adjust the viewing angle. That is, it is set whether or not (on) or not (off) the viewing angle adjusting unit 42 performs the operation of adjusting the viewing angle. When the viewing angle adjustment unit 42 does not perform the operation of adjusting the viewing angle (off), the present operation is terminated without transmitting a control signal, and the viewing angle set at this time is displayed as it is. An image is displayed on the unit 41. On the other hand, when the operation for adjusting the viewing angle is performed by the viewing angle adjustment unit 42 (on), the adjustment enable / disable setting unit 324b outputs a control signal corresponding to this operation to the viewing angle adjustment unit 42. The adjustment unit 42 is caused to perform an operation for adjusting the viewing angle.

  Next, as shown in FIG. 7, the threshold value β0 is set (S21).

  Here, the threshold value β 0 when the viewing angle adjustment unit 42 adjusts the viewing angle based on the display direction of the display unit 41 detected by the display direction detection unit 44 is based on the command from the operator input to the operation unit 33. Is set by the threshold setting unit 324c. For example, as shown in FIG. 8, the angle of the display surface between the initial position y0 of the display surface of the display unit 41 and the rotated position y1 different from the initial position y0 about the vertical direction z is set as a threshold value β0. Set as. Then, the threshold value setting unit 324c outputs a control signal for the set threshold value β0 to the viewing angle adjustment unit 42.

  Next, as shown in FIG. 7, the angle β1 in the display direction is detected (S31).

  Here, the display direction detection unit 44 detects the display direction of the image on the display surface of the display unit 41 supported by the display unit support base 43 using an angle sensor. For example, as shown in FIG. 8, when the display surface of the display unit 41 is rotated from the initial position y0 to the movement position y2 different from the initial position y0 by the operator around the vertical direction z, the initial position y0 is obtained. The angle β1 of the display surface with respect to the position y2 after the movement is detected. Then, the display direction detection unit 44 outputs data regarding the detected angle β1 of the display direction to the control unit 324.

  Next, as shown in FIG. 7, the threshold value β0 is compared with the detected angle β1 in the display direction. (S41).

  Here, the control unit 324 compares the threshold value β0 set by the threshold setting unit 324c with the display direction angle β1 detected by the display direction detection unit 44. Here, when the detected angle β1 of the display direction is smaller than the threshold value β0, the control unit 324 adjusts the viewing angle so that the viewing angle adjustment unit 42 does not adjust the viewing angle on the display surface of the display unit 41. This operation is terminated without outputting to the unit 42, and an image is displayed on the display unit 41 with the viewing angle set at this time. On the other hand, when the detected angle β1 of the display direction is larger than the threshold value β0, the control unit 324 sends the control signal to the viewing angle adjusting unit 42 so that the viewing angle adjusting unit 42 adjusts the viewing angle on the display surface of the display unit 41. Output.

  Next, as shown in FIG. 7, the viewing angle is adjusted (S51).

  Here, the viewing angle adjustment unit 42 receives a control signal from the control unit 324 to adjust the viewing angle on the display surface of the display unit 41 from the control unit 324, and based on this, the viewing angle adjustment unit 42 adjusts the viewing angle. adjust. For example, when the display direction of the display surface of the display unit 41 is the direction approaching the mounting table 2 from the initial position and exceeds the set threshold value β0, the viewing angle adjustment unit 42 sets the viewing angle adjustment filter. By changing the alignment direction of the liquid crystal layer, the viewing angle is adjusted so that the viewing angle α1 is smaller than the default viewing angle α0 as shown in FIG. On the other hand, when the display direction of the display surface of the display unit 41 is away from the mounting table 2 from the initial position and exceeds the set threshold value β0, the viewing angle adjustment unit 42 displays the viewing angle adjustment filter. By changing the alignment direction of the liquid crystal layer, the viewing angle is adjusted so that the viewing angle α2 is larger than the initial viewing angle α0 as shown in FIG.

  As described above, in the present embodiment, the display direction detection unit 44 detects the display direction of the image on the display surface of the display unit 41, and the display unit 41 is based on the display direction detected by the display direction detection unit 44. The viewing angle adjustment unit 42 adjusts the viewing angle on the display surface. Here, when the display direction detected by the display direction detection unit 44 is in the direction of the mounting table 2, the viewing angle adjustment unit 42 displays the display unit 41 more than when the display direction is different from the mounting table 2. The viewing angle is adjusted to be small. For this reason, this embodiment can prevent the image displayed on the display surface from being seen by the subject when the operator is photographing. Therefore, the present embodiment can efficiently perform shooting.

<Embodiment 4>
Embodiment 4 according to the present invention will be described.

  FIG. 9 is a block diagram illustrating a main part of the ultrasonic diagnostic apparatus 1 according to the fourth embodiment of the present invention.

  As shown in FIG. 9, the ultrasonic diagnostic apparatus main body 3 includes a subject position detection unit 34, which is different from the second embodiment. Except for this point, the present embodiment is the same as the second embodiment. For this reason, description is abbreviate | omitted about the overlapping part.

  The subject position detection unit 34 includes a position sensor, and the position sensor detects the position of the subject S. Then, the subject detection unit 34 outputs the detected position data of the subject S to the control unit 324.

  Thereafter, the control unit 324 outputs the control signal so that the viewing angle adjustment unit 42 adjusts the viewing angle on the display surface of the display unit 41 based on the position data of the subject S detected by the subject position detection unit 34. Output to the viewing angle adjustment unit 42. Here, when the position of the subject S detected by the subject detection unit 34 is within the reference range, the viewing angle adjustment unit 42 of the display unit 41 is more than when the position of the subject is outside the reference range. Adjust the viewing angle to be small.

  As described above, in the present embodiment, the position of the subject S is detected by the subject position detection unit 34, and the viewing angle adjustment unit is based on the position of the subject S detected by the subject position detection unit 34. 42 adjusts the viewing angle of the display unit 41. For this reason, this embodiment can prevent the image displayed on the display surface from being seen by the subject when the operator is photographing. Therefore, the present embodiment can efficiently perform shooting.

  In implementing the present invention, the present invention is not limited to the above-described embodiment, and various modifications can be employed.

  For example, you may combine the component of the apparatus in each embodiment.

  For example, the display unit 41 is not limited to an LCD device, and may be a display device such as a CRT or EL. Further, a display device capable of 3D display may be used. In this case, for example, an electrically controllable parallax barrier may be used.

FIG. 1 is a front view schematically showing the overall configuration of an ultrasonic diagnostic apparatus 1 in Embodiment 1 according to the present invention. FIG. 2 is a block diagram illustrating a main part of the ultrasonic diagnostic apparatus 1 according to the first embodiment of the present invention. FIG. 3 is a top view showing a state in which an image is displayed by the viewing angle adjustment unit 42 adjusting the viewing angle in the first embodiment of the present invention. FIG. 4 is a block diagram showing a main part of the ultrasonic diagnostic apparatus 1 in the second embodiment of the present invention. FIG. 5 is a top view showing a state in which an image is displayed by the viewing angle adjustment unit 42 adjusting the viewing angle in the second embodiment according to the present invention. FIG. 6 is a block diagram illustrating a main part of the ultrasonic diagnostic apparatus 1 according to the third embodiment of the present invention. FIG. 7 is a flowchart for explaining an image display method in the third embodiment of the present invention. FIG. 8 is a top view showing a state when the viewing angle is adjusted in the third embodiment of the present invention. FIG. 9 is a block diagram illustrating a main part of the ultrasonic diagnostic apparatus 1 according to the fourth embodiment of the present invention.

Explanation of symbols

1 ... ultrasonic diagnostic equipment (ultrasonic diagnostic equipment),
2 ... mounting table (mounting table),
DESCRIPTION OF SYMBOLS 3 ... Ultrasonic diagnostic apparatus main body 4 ... Display apparatus 31 ... Ultrasonic probe 32 ... Central processing part 33 ... Operation part 34 ... Subject position detection part (Subject position detection part)
41 ... display part (display part)
42 ... Viewing angle adjustment section (viewing angle adjustment section)
43 ... Display unit support 44 ... Display direction detection unit (display direction detection unit)
321 ... Transmission / reception unit 322 ... Image generation unit 323 ... Storage unit 324 ... Control unit 324a ... Viewing angle setting unit (viewing angle setting unit)
324b ... Adjustability setting section (adjustability setting section)
324c: Threshold setting unit (threshold setting unit)

Claims (8)

An ultrasound diagnostic apparatus that generates an image of the subject based on an echo signal obtained by receiving ultrasound reflected from the subject to which ultrasound is transmitted,
A display unit for displaying an image of the subject on a display surface;
An ultrasonic diagnostic apparatus comprising: a viewing angle adjusting unit that adjusts a viewing angle of the display unit. A mounting table on which the subject is mounted;
The ultrasonic diagnosis according to claim 1, wherein the viewing angle adjustment unit adjusts the viewing angle of the display unit so that the display unit displays an image in a smaller angle range on the side closer to the mounting table than on the far side. apparatus. A viewing angle setting unit for setting a viewing angle to be adjusted by the viewing angle adjustment unit based on a command from an operator;
The ultrasonic diagnostic apparatus according to claim 1, wherein the viewing angle adjustment unit adjusts a viewing angle on a display surface of the display unit so as to correspond to the viewing angle set by the viewing angle setting unit. A display direction detection unit that detects a display direction of an image on the display surface of the display unit,
The ultrasonic diagnostic apparatus according to claim 1, wherein the viewing angle adjustment unit adjusts a viewing angle on the display surface of the display unit based on the display direction detected by the display direction detection unit. A threshold setting unit that sets a threshold when the viewing angle adjustment unit adjusts the viewing angle based on the display direction detected by the display direction detection unit based on a command from an operator;
The ultrasonic diagnostic apparatus according to claim 4, wherein the viewing angle adjustment unit adjusts a viewing angle on a display surface of the display unit based on the threshold set by the threshold setting unit. A mounting table on which the subject is mounted;
When the display direction detected by the display direction detection unit is in the direction of the mounting table, the viewing angle adjustment unit has a field of view of the display unit that is different from the case where the display direction is different from the mounting table. The ultrasonic diagnostic apparatus according to claim 4, wherein the angle is adjusted to be small. An object position detection unit for detecting the position of the object;
The ultrasonic diagnostic apparatus according to claim 1, wherein the viewing angle adjustment unit adjusts a viewing angle on the display surface of the display unit based on the position of the subject detected by the subject position detection unit. Based on a command from an operator, the viewing angle adjustment unit has an adjustment availability setting unit that sets whether or not to perform an operation of adjusting the viewing angle.
The said viewing angle adjustment part implements the operation | movement which adjusts the said viewing angle so that it may respond | correspond to the availability information of the adjustment operation of the viewing angle set by the said adjustment availability setting part. Ultrasound diagnostic equipment.

Images