WO2001063339A1

WO2001063339A1 - Medical image device

Info

Publication number: WO2001063339A1
Application number: PCT/JP2001/001233
Authority: WO
Inventors: Iwane Mitsui; Toshihiko Furukawa; Kiyoto Fujioka; Naohiro Kimura
Original assignee: Totoku Electric Co., Ltd.; Data-Ray Corporation
Priority date: 2000-02-24
Filing date: 2001-02-21
Publication date: 2001-08-30
Also published as: JP2001235704A

Abstract

A film holding device (20), for holding film (F) in front of a CRT (11) that displays a high-resolution medical image, is mounted to the bezel (12) of a display unit (10). When the film (F) is held on the film holding device (20), the CRT (11) turns to white over its entire display screen to enable it to backlight the film (F) and to be used as a viewing screen. Accordingly, the CRT not only can display a high-resolution image but can be used as a viewing screen.

Description

Description Medical imaging equipment Technical field

The present invention relates to a medical imaging device, and more particularly, to a medical imaging device that can not only display a medical image with high resolution but also be used as a shadow caster. Background art

For example, there has been known a medical imaging apparatus capable of displaying a high-resolution (2 megapixel or more) medical image by using a video signal obtained by imaging with a magnetic resonance imaging apparatus or the like as an input.

Although one such medical imaging device is used, 4 to 8 units are often used side by side in a two-tiered rack.

On the other hand, Shakasten is known in which a film obtained by photographing with an X-ray photographing device or the like is held on a panel, and the panel is illuminated white to backlight the film.

In many cases, such scabsten hold a plurality of films arranged in a horizontal line, but there are also cases in which the films are held in two upper and lower stages.

In order for a doctor to make a diagnosis, both a medical imaging device and a carcassene are required, but if both were installed, there was a problem that a large amount of hospital space with a high unit price would be occupied.

Therefore, an object of the present invention is to provide a medical image apparatus which can not only display a medical image with high resolution but also be used as a sharp cast. Disclosure of the invention

According to a first aspect, the present invention provides a medical image device comprising: a display device for displaying a medical image; and a film holding unit for holding a film on a front surface of the display device. provide. In the medical imaging apparatus according to the first aspect, since the film can be held in front of the display apparatus, if the display apparatus displays an all-white screen, the film can be backlit, and can be easily used as a shadow cast. In addition, medical images can be displayed at high resolution if no film is held in front of the display device.

In a second aspect, the present invention provides the medical image device according to the first aspect, wherein the display device comprises a CRT and a display surface frame of the CRT. A medical image apparatus, wherein the front surface is on the same or substantially the same plane, and the film holding means is provided on the display surface frame.

In the medical imaging apparatus according to the second aspect, the display surface of the CRT and the front surface of the display surface frame (bezel) are on the same or substantially the same plane, and the film is held by the film holding means provided on the display surface frame. The film almost adheres to the display surface of the CRT, thereby preventing the film from shaking due to wind or the like.

In a third aspect, the present invention provides the medical image apparatus according to the first or second aspect, wherein the input image signal Vin or an all white signal is selected as a signal to be displayed on the display device. A medical image device characterized by comprising a switching means.

In the medical imaging device according to the third aspect, the display device can easily An all white screen can be displayed, and the film can be easily backlit. According to a fourth aspect, the present invention provides the medical image device according to the third aspect, further comprising: a film detecting unit configured to detect that the film is held by the film holding unit; A medical image apparatus, wherein the input video signal Vin is selected when no image signal is detected, and the all white signal is selected when film holding is detected.

Above medical image apparatus according to the fourth aspect, in automatically viewpoint can _c fifth displaying a full white screen display device by detecting that holding the films, the present invention displays a medical image And a switching device for selecting either an input video signal Vin or an all-white signal as a signal to be displayed.

In the medical imaging apparatus according to the fifth aspect, any of the input image signal Vin and the all-white signal can be easily selected as a signal to be displayed. Therefore, if the input video signal V in is selected, a medical image can be displayed with high resolution. Also, by selecting the all-white signal and holding the film on the display surface, the film can be backlit, and can be easily used as a shadow cast. According to a sixth aspect, the present invention provides the medical imaging apparatus according to the third to fifth aspects, wherein a time when an input video signal Vin is selected as a signal to be displayed and a time when an all-white signal is selected. The present invention provides a medical image apparatus characterized by comprising a display area changing means for changing a display area in (1).

The film is not always held in such a manner that it completely matches the display area when displaying a medical image. Therefore, if the entire white area is matched to the display area when displaying a medical image, a small portion may occur in the film, Undesirably, a bright area may be formed outside the room.

Thus, in the medical imaging apparatus according to the sixth aspect, the display area is changed between when displaying a medical image and when displaying all white. Thus, for example, when a CRT is used, when displaying a medical image, an area slightly inside the displayable area (area to which the phosphor is applied) is set as the display area. Image distortion and the like in the peripheral portion of the displayable area can be avoided. On the other hand, when displaying all white, it is not necessary to worry about image distortion and the like in the periphery of the displayable area. Backlighting the film without any excess or shortage. BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 is a perspective view of a medical imaging apparatus according to the first embodiment. FIG. 2 is a cross-sectional view of a main part of the medical imaging device according to the first embodiment.

FIG. 3 is a circuit diagram of the film holding device according to the first embodiment.

FIG. 4 is a perspective view showing a state in which a medical image is displayed on the medical image apparatus according to the first embodiment.

FIG. 5 is a perspective view showing a state in which the medical imaging apparatus according to the first embodiment is functioning as a shadow caster.

FIG. 6 is a perspective view of a medical imaging apparatus according to the second embodiment. FIG. 7 is a sectional view of a main part of a medical imaging apparatus according to the second embodiment.

FIG. 8 is a main part circuit diagram of a medical imaging apparatus according to the second embodiment. You.

FIG. 9 is a front view showing a state where the medical imaging apparatus according to the second embodiment is functioning as a shadow caster.

FIG. 10 is a main part circuit diagram of a medical imaging apparatus according to the third embodiment.

FIG. 11 is a front view showing a state in which the medical imaging apparatus according to the third embodiment is functioning as a shadow cast.

The first 2 figures, _c first 3 FIG is a perspective view of a medical imaging apparatus according to the fourth embodiment, a side view showing an installed state of the medical imaging apparatus according to the fourth embodiment slightly downward is there.

FIG. 14 is a side view showing a state where the medical imaging apparatus according to the second embodiment is installed slightly downward. BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited by this.

First Embodiment I

FIG. 1 is a schematic diagram of a medical imaging device 100 according to a first embodiment of the present invention.

The medical image device 100 includes a display device 10 for displaying a medical image and a film holding device 20 for holding a film in front of the display device 10. A display device. The display device 10 is a conventionally known display device having a CRT 11 and a bezel 12 which is a display surface frame of the CRT 11. In addition, instead of CRT 11, LCD, PDP, EL, projection display You can use something like that.

The film holding device 20 is an additional device mounted on the upper surface of the bezel 12 of the display device 10 and has an LED 25 that lights up when holding a film. Note that the LED 25 may be omitted. FIG. 2 is a cross-sectional view of a main part of the medical imaging apparatus 100.

The film holding device 20 includes a housing 21 for mounting on the bezel 12, a clip 22 for sandwiching the film between the bezel 12, and whether or not the film is held. When the film is not held, the micro switch 23 for detecting whether or not the input video signal Vin is passed through and the output video signal Vout to the display device 10 is output. The control circuit 24 includes a white signal (a signal for whitening the entire screen) Aw as an output video signal Vout to the display device 10, and the LED 25. Note that the control circuit 24 can be incorporated in the cabinet of the display device 10.

FIG. 3 is a circuit diagram showing an example of the film holding device 20.

The control circuit 24 is an internal switch 24 2, 24 in conjunction with the micro switch 23, which is on the a side when the film is not held and on the b side when the film is held. The switching circuit 24 for switching 3 and the input video signal Vin input to the video signal input terminal in are passed through to the video signal output terminal out as the output video signal Vout on the a side, and the all white signal output circuit 24 is output on the b side. The video system internal switch 2 42 that outputs the all-white signal Aw output from 4 to the video signal output terminal out as the output video signal V out, and the a side does not supply power to the LED 25 and the b side has L The ED lighting circuit 245 is provided with an LED internal switch 243 for supplying power to the LED 25 and lighting the LED 25. FIG. 4 is an explanatory diagram of a state where a medical image is displayed on the medical image apparatus 100.

The operator uses the film without holding the film in the film holding device 20. At this time, a medical image is displayed on the CRT 11 at a high resolution based on the input video signal Vin. LED 25 does not light.

FIG. 5 is an explanatory diagram of a state in which the medical image device 100 is used as a shadow cast.

The operator holds the film F by hand, inserts it into the film holding device 20 from below, and releases when the LED 25 lights up. Then, the film F is held, and the CRT 11 becomes white display on the full screen, and the film F is backlit.

According to the medical image apparatus 100 described above, a medical image can be displayed not only at a high resolution but also as a shadow cast. Therefore, there is no need to install a conventional shelf, and high cost unit hospital space can be saved.

In addition, the medical image apparatus 100 described above has an advantage that it can be easily implemented because the conventional display apparatus 100 is used without modification and the film holding apparatus 20 is simply added thereto. .

Second Embodiment I

FIG. 6 is a schematic diagram of a medical imaging device 200 according to the second embodiment of the present invention.

The medical image device 200 includes a display device 30 for displaying a medical image, and a film holding device 40 for holding a film in front of the display device 30. A display device. The display device 30 includes a CRT 11 and a display of the CRT 11 A bezel 12 as a surface frame, a touch panel 31 installed on the display surface of the CRT 11, and a manual switch for manually displaying a medical image or an all white display on the CRT 11. And a switching button 3 3.

The film holding device 40 is installed on the upper front surface of the bezel 12 of the display device 30.

FIG. 7 is a sectional view of a main part of the medical imaging apparatus 200.

The display device 30 includes a control circuit 34 that operates based on the operation of the touch panel 31 and the switching button 33. The film holding device 40 includes a clip 22 for sandwiching a film between the film holding device 40 and the bezel 12.

FIG. 8 is a circuit diagram of the medical image apparatus 200.

The medical imaging device 200 includes a gain control amplifier 13 for amplifying the input video signal Vin, a gain adjustment circuit 14 for adjusting the degree of amplification, and a video output amplifier for driving the CRT 11 video system. 15, a display area adjustment circuit 16 for adjusting the display area size / display area position based on the input video signal Vin, a touch panel control circuit 17 for driving the touch panel 31 and a deflection Circuit 18. These constituent elements 13 to 18 are conventionally known.

However, the image area adjustment circuit 16 displays a medical image slightly inside the displayable area in order to avoid image distortion and the like in the periphery of the displayable area of the CRT 11 (area coated with phosphor). In addition to outputting the video area setting signal A for setting the area, it also outputs the video area setting signal B that covers the entire displayable area to support the largest possible film F. But slightly different.

The control circuit 34 is set to the a side when the film is not held, When the film is held, the switching circuit 341, which switches the internal switches 34 2 and 34 3 in conjunction with the switching button 33 set to the b side, and the gain control amplifier 13 on the a side The video output amplifier 15 outputs an input video signal Vin to the video output amplifier 15 and the b side outputs an all white signal Aw output from the all white signal output circuit 344 to the video output amplifier 15. Switch 3 and the a side outputs the video area setting signal A from the video area adjustment circuit 16 to the CRT 11 and the b side outputs the video area setting signal B to the previous CRT 11 And a system internal switch 3 4 3.

When displaying a medical image on the medical image device 200, the operator sets the switching button 33 to the a side without holding the film on the film holding device 40. At this time, a medical image is displayed on the CRT 11 at high resolution based on the input video signal Vin. The size and position of the display area of the medical image are determined by the video area setting signal A. Normally, the medical image display area is slightly inside the displayable area of the CRT 11.

FIG. 9 is an explanatory diagram of a state in which the medical image device 200 is used as a shadow cast.

The operator holds the film F by hand and inserts it into the film holding device 40 from below, and then sets the switching button 33 to the b side.

Then, in the initial state, the CRT 11 becomes full screen white display and backlights the film F. The size and position of the display area in the full screen white display are determined by the video area setting signal B. Normally, there is no need to worry about image distortion around the displayable area of the CRT 11 and the entire displayable area is a white-level display area to accommodate the largest possible film F. . If the size of Finolem F is small, press the two points f1 and f2 at the lower corner of Finolem F. The positions corresponding to these two points f 1 and f 2 are read by the touch panel 31 and the touch panel control circuit 17 and notified to the all-white signal output circuit 344. The all-white signal output circuit 3 4 4 is a rectangular area determined by the straight line connecting the two points f 1 and f 2, the perpendicular drawn from the two points fl and f 2 to the top of the displayable area, and the top of the displayable area An all-white signal A w is output such that is set as a white level display area and the other as a black level display area or gray level display area. As a result, only the film F is backlit, and the luminance around the film F is reduced, so that the reading of the film F becomes easy. According to the medical image apparatus 200 described above, a medical image can be displayed not only at a high resolution but also as a shadow cast. Therefore, there is no need to install a conventional shelf, and high cost unit hospital space can be saved.

In addition, the medical imaging device 200 described above can perform backlighting according to the size of the film F, and thus has an advantage in that even a small film F can be used for image reading.

Third Embodiment I

A medical imaging device 300 according to the third embodiment of the present invention is different from the medical imaging device 200 according to the second embodiment in that the control circuit 34 shown in FIG. This is a medical image display device having the same configuration except that the device is provided.

FIG. 10 is a circuit diagram of the medical image apparatus 300.

The control circuit 36 of the medical imaging apparatus 300 includes a switching circuit 341, which switches the internal switch 342 in conjunction with the switching button 33, and an all-white signal output for outputting the all-white signal Aw. Circuit 2 4 4, input video signal Vin and all white signal A and the input video signal Vin from the gain control amplifier 13 is output to the video output amplifier 15 on the a side, and the input video signal Vin is output from the gain control amplifier 13 on the a side. On the side, there is provided a video system internal switch 342 for outputting the input video signal Vin and the composite signal output from the all-white signal composite circuit 365 to the video output amplifier 15.

When displaying a medical image on the medical image device 300, the operator sets the switching button 33 to the a side without holding the film in the film holding device 40. At this time, a medical image is displayed at a high resolution on the CRT 11 based on the input video signal V in. The size and position of the display area of the medical image are determined by the video area setting signal A output from the video area adjustment circuit 16. Normally, the medical image display area is slightly inside the displayable area in order to avoid image distortion and the like in the periphery of the CRT 11 displayable area.

FIG. 11 is an explanatory diagram of a state in which the medical image device 300 is used as a shadow cast.

Then, in the initial state, the input video signal V in and the all-white signal synthesizing circuit 365 output only the all-white signal A w as a synthesized signal. As a result, CRT 11 becomes full-screen white display, and the film F is backlit. However, the size and position of the display area in the full-screen white display are also determined by the video area setting signal A output from the video area adjustment circuit 16.

If the size of film F is small, press the two points f 1 and f 2 at the lower corner of film F. The positions corresponding to these two points fl and f2 are read by the touch panel 31 and the touch panel control circuit 17 and the input video signal V in and all white signal combining circuit 365. The input video signal V in and the all-white signal synthesizing circuit 3 65 are defined by a straight line connecting the two points fl and f 2, a perpendicular drawn from the two points f 1 and f 2 to the top of the displayable area, and The white level is displayed in the rectangular area determined by, the image display window P is formed in the margin below it, the reduced medical image is displayed in it, and the others are the black level display area or gray level display area Create and output a composite signal as follows. As a result, only the film F is backlighted, a reduced medical image is displayed below the film F, and the luminance around the image is reduced, so that the film F can be read while referring to the medical image.

According to the medical image apparatus 300 described above, not only can a medical image be displayed at a high resolution, but it can also be used as a shadow cast. Therefore, there is no need to install a conventional shelf, and high cost unit hospital space can be saved.

In addition, the medical imaging apparatus 300 described above can perform backlighting according to the size of the film F, so that it is easy to read even a small-sized film F, and it is possible to simultaneously display medical images, so that comparative diagnosis is easy. There is an advantage ^s .

Fourth Embodiment I

FIG. 12 is a schematic diagram of a medical imaging device 400 according to the fourth embodiment of the present invention.

The medical image device 400 includes a display device 30 for displaying a medical image, and a film holding device 50 for holding a film in front of the display device 30. A display device. The display device 30 has the same configuration as the display device 30 in the medical image device 300 according to the third embodiment. The film holding device 50 is installed in a key shape on an upper front portion and a left portion of the bezel 12 of the display device 30.

FIG. 13 is an explanatory diagram showing a state where the medical image apparatus 400 is installed in a rack L in two upper and lower tiers.

The upper medical imaging device 400 is set slightly downward. The top and left portions of the film F are pressed by the key-shaped film holding device 50, so that the film F comes into close contact with the display surface of the medical imaging device 400.

On the other hand, FIG. 14 is an explanatory diagram of a state in which the medical imaging apparatus 200 of the second embodiment is installed in a rack L in two upper and lower tiers.

The upper medical imaging device 200 is set slightly downward. Since only the upper portion of the film F is pressed by the film holding device 40, the lower side of the film F hangs down due to gravity and separates from the display surface of the medical imaging device 200.

According to the medical image apparatus 400 described above, not only can a medical image be displayed at high resolution, but it can also be used as a shadow cast. Therefore, there is no need to install a conventional shelf, and high cost unit hospital space can be saved.

In addition, since the above medical imaging device 400 presses not only the upper side but also the side of the film F, the advantage that the film F can be kept in close contact with the display surface even when the display surface is set slightly downward. There is. Industrial applicability

The medical imaging device of the present invention has two functions: an original function of displaying a medical image at high resolution, and a sharpen function of backlighting a film. Therefore, there is no need to install a conventional carcass-ten, and high cost unit hospital space can be saved.

Claims

The scope of the claims

1. A medical imaging apparatus comprising: a display device for displaying a medical image; and a film holding means for holding a film on a front surface of the display device.

2. The display device comprises a CRT and a display surface frame of the CRT, and the display surface of the CRT and the front surface of the display surface frame are on the same or substantially the same plane, and the film is provided on the display surface frame. 2. The medical imaging apparatus according to claim 1, wherein holding means is provided.

3. The medical device according to claim 1 or 2, further comprising switching means for selecting either an input video signal or an all-white signal as a signal to be displayed on the display device. Imaging device.

4. The film holding means includes a film detecting means for detecting that the film is held, and the switching means selects the input video signal when the holding of the film is not detected, and holds the film. 4. The medical image apparatus according to claim 3, wherein the all-white signal is selected when is detected.

5. A medical image apparatus for displaying a medical image, comprising: a switching unit capable of selecting either an input video signal or an all-white signal as a signal to be displayed. .

6. A display area changing means for changing a display area when an input video signal is selected as a signal to be displayed and when an all white signal is selected as a signal to be displayed. 6. The medical imaging device according to any one of claims to 5.