JPH02191424A - Video endoscopic apparatus - Google Patents

Abstract

PURPOSE:To display an endoscopic image at the time of reproduction in a state superposing an electrocardiographic synchronous (ECG) waveform thereon or not superposing by recording the endscopic image as an image signal and also recording medical related data such as the ECG waveform as a sound signal different from the image signal. CONSTITUTION:When a switch 12 is closed at a contact (a), a switch 13 is closed at a contact a'. In this state, the standard television signal outputted from a video interface circuit 2 is inputted not only to a video- electrocardiographic synchronous (ECG) waveform mixing circuit 3 but also to a recording apparatus 6. An ECG waveform signal is inputted to the video- ECG waveform mixing circuit 3 and the recording apparatus 6. In this state, by opening/closing the selection switch 3A of a display device 8, an ECG waveform is displayed or only an endoscopic image can be displayed. The recording apparatus 6 separately records a standard television signal as an image signal and a sound signal as the ECG waveform signal. Therefore, when the switch 12 is closed at a contact (b), the switch 13 is closed at a contact b' and it can be freely selected as for whether the ECG waveform is superposed in displaying the endoscopic image or not.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a video-A endoscopic device that separates and records an electrocardiogram synchronized waveform and the like from an endoscopic image.

[Prior Art] In recent years, means for transmitting illumination light from the tip of an elongated insertion portion and an objective optical system for forming images of three illuminated subjects have been provided.
Optical endoscopes, which allow the optical image produced by this objective optical system to be transmitted through an image guide and observed with the naked eye from the base side, have come to be widely used.

In addition, recently, the above optical image is converted into a layered image means using a solid-state image carrier, and the signal (l!l) is used to display the object image (endoscopic chain side) in color on a color monitor. The '61vL shown in the video was put into practical use.

With the above-mentioned video endoscope, endoscopic images can be easily recorded and played back on a VTR, etc., and image processing such as contour enhancement FJi1 can be used to make the target area more noticeable. It has the advantage of being easy to use.

By the way, Ii! using a video endoscope has conventionally been used. ! i! &
Congratulations on the video that allows you to display electrocardiogram synchronized waveforms (hereinafter abbreviated as ECG waveforms) superimposed on the video! An i-device has been devised, and FIG. 7 shows its configuration.

In the same figure, video endoscope 1 (with built-in COD,
The image signal photoelectrically converted by this COD is inputted to the video interface circuit 2 . This video interface circuit 2 includes an amplification circuit for amplifying an image signal and a standard i
Including scan converter etc. to convert to Ruby No. 18,
This standard television signal is input to the video-ECG mixing circuit 3.

This bidet; t-E CG mixing circuit 3 is connected to the E
The signal is inputted via the CG interface LIsu circuit 5. The ECG interface circuit 5 includes an amplifier circuit 'S that amplifies the signal output from the ECG device 4.

The ECG waveform is superimposed on the video-ECG condition combining circuit 3 video Jfffi, and the video signal on which this EOG signal is superimposed is called video cheapre (VTR) or bidet (A-tis') L. / =i −'J (V D
R) It is input manually to the image input terminal of the recording device 6 of the inn, and is also applied to one contact a of the changeover switch 7. The video output end of this recording device 6 is connected to the other contact of the changeover switch 7, and the changeover contact of this switch 7 is connected to the display device 8. Accordingly, the display device Fi 8 receives the signal from the video-mixing circuit 3 or the signal recorded by the recording device 6 (
It is possible to display the reproduced message of No. 1 as shown in Figure 8.

Note that the video-ECG mixing circuit 3 includes an ECG
There is a selection switch 3 to select between ``fl'' and ``heavy''.

In the conventional example of this configuration, when the recording device 6C records the data recorded by 104'', the CGG type 9 is displayed superimposed on, for example, the left corner of the endoscopic image 10, as shown in FIG. Therefore, if you understand only this display device (rlQ), E
It is possible to know CG waveforms.

[Problems to be Solved by the Invention] The conventional device described in 1-1 has a configuration in which the recording device 6 records and records one image of the ECG waveform 9 on both endoscopes 10 (because there is , the image reproduced from the recording device 6 includes [E O
The G waveform becomes 1 tatami and a part of the endoscopic image 10 is missing due to this EGGG shape 9.

In this way, if the information in the endoscopic image near the part where ECG waveform 9 is displayed is missing and is partly lost, if there is a part near the part A that should be marked, it will be played back later and corrected. If you try to research or diagnose the problem, it will be inconvenient for you.

Also, when performing image processing etc. later, this ECGrgt
Since the '628!1 image information in the part where the shape 9 is displayed is missing, this is inconvenient in image processing. In this case, this [
Image processing 1 except for CG waveform 9! Also, when the endoscopic image area is square, is it more rectangular? Since I2 becomes complicated, there are drawbacks such as the processing block becomes complicated.

However, if the endoscopic image 10 is displayed smaller than the received image in FIG. 8, the ECG waveform may omit part of the endoscopic image, but in this case, , information about the endoscopic image) may be used to display part of the empty space. Therefore, in this case, when displaying 6 information data, a disadvantage arises in that the selection of display items (A) is limited.

The present invention is based on the points mentioned above.
If the recording device is ≦1, you can arbitrarily select whether or not to Φ fold the ECG waveform, etc. into the endoscopic image.・
The purpose of the present invention is to provide a video endoscope device that can be used in a variety of ways.

[Problem solved 1Jru・"Q and effect 1The present invention is to send the first signal corresponding to the endoscopic image to the video transmitter of the recording device and the second signal such as EGGG type. A switch is provided to select the first playback (ri and second playback signals or the first and second signals) from this recording device so that they can be recorded separately. By providing a means and a stage for inquiring whether the two signals via the switch means are superimposed on/4), C or ECG waveform etc. Medical-related information signals can be freely superimposed or displayed without being superimposed.

[Example] Hereinafter, the present invention will be specifically described with reference to the drawings.

1 and 2 relate to the first embodiment of the present invention. We accept both sides of the screen when only the mirror image is displayed.

J: Video endoscope device 1 of the first embodiment shown in FIG.
1 is shown in FIG. 757 In the conventional example, the output signal of the video interface circuit 2 is applied to the video input terminal of the recording device 6, and is also applied to the contact a of the first switch 12 1j. . The video output terminal of this recording device 6 is connected to the other contact of this switch f12, and the switching contact t1 of this switch 12 is connected to the input terminal of the video/f-IE CG mixing circuit 3. There is.

On the other hand, the output end of the ECGC fin turf 11 path 5 is connected to the audio input end of the recording device 6, and is also connected to one input g a ' of the second switch 13. The audio output end of this recording device 6 is connected to the other contact b' of this switch 13, and the switching contact of this switch 13 is connected to the other input end of the video-it-E CG mixing circuit 3.

The output terminal of this video-ECG mixing circuit 3 is connected to a display device 8.
The video ECG mixing circuit 3 has a selection switch 3A.

The first and second switches 12.13 have contacts a and a.
It is an interlocking switch in which the contacts ', and b' are selected (on/off) in conjunction with each other.

Other than A, the configuration is the same as that of the conventional example shown in FIG. 7, and is denoted by the same reference numerals.

Since the first and second switches 12 and 13 are interlocked, as shown by the dotted line J in FIG. Then contact a' is turned on. In this state, the video signal and television number outputted from the video interface circuit 2 are input to the video Δ-E CG i12 combiner circuit 3, and are also input to the video input terminal 1 of the recording device 6. or,
The 1m CG waveform signal is input to the video A-E CG mixing circuit 3, and is also input to the recording device i' (1) f';
A person is attacked by the horny voice. In this state (・(Well, when you turn on the selection switch 3△ of the display device 8,
According to A, only the endoscopic image is displayed as shown in FIG. 2.

Moreover, the recording device 6 uses Seo Jun TV Shingetsu as a video signal,
The ECG waveform signal "14 (!-6'I") is recorded separately.

Therefore, the first switch 12 is switched and the contact +jλ
When b is turned on, the second switch 13 switches contact b' to A-
NJru. In this state, the standard television signal recorded as a video signal by the recording device 6 and the ECG waveform signal recorded as an audio signal are transmitted to the video signal mixer circuit 3.
As a result, the ECG waveform signal is superimposed on the standard i-rep signal and displayed on the display device 8. Also in this case,
By selecting Δn/Δ) of the selection switch 3Δ, it is possible to display the IEcG waveform or omit display of only the endoscopic image.

Therefore (according to this first embodiment, when J3 is in the playback mode, it is possible to freely select whether or not to superimpose and display the ECG waveform, and even when displaying only the endoscopic image, the Images can be displayed without missing any part of the image.

FIG. 3 shows a video endoscope device 21 according to a second embodiment of the present invention. It also displays measurement data from a pulse oximeter 22 that measures oxygen saturation.

This pulse Aximeter 22 displays the measured oxygen saturation and heart rate on the front display panel, and the data is inputted from the R8-2320 serial port to the video system sensor-5123, and the modulator 24 and applied to the 8-voice input terminal of the recording device 6. This record is S! The signal output from the i*(6(1) fi voice output terminal is demodulated by the demodulator 25, and sent to R8-232 of the video system center 23 via the switch 13'.
It is designed so that it is input to the input terminal of G. The video input terminal of the video system center 23 is manually inputted with the video N(, ij'i) from the video interface circuit 2 or the recording device 6 via the switch 12. Then, the No. 11 data input from the RS-232C serial port is superimposed on the video signal input to the video input terminal, and the display device 1 is output.
i81'Display.

The video system center 23 has a video interface l.
The video signal output from the chair circuit 2 is electrically screened using, for example, an octagonal frame as shown in FIG. S-2
The timing is adjusted to display the digital data input from the 32C board 1, that is, the oxygen saturation level and heart rate data. In addition, in FIG. 4, the switch 26 is set to S.
Figure 53 shows the one that also serves as the switchboard 12, 13'.
゜The effects of this embodiment are similar to those of the first embodiment.

FIG. 5 (shows the video A endoscopy vL device i￥31 of the third embodiment of the Josui invention) In this embodiment, the functions of the recording device and 16 in the second embodiment described above are implemented by the microcomputer 32. The microcombiner 32 also performs the function of superimposing the data from the pulse oscimeter 22 on the video signal.

That is, the video signal of the video interface circuit 2 (not shown) is input to the video input end of the video system center 23, and the video output end of the video system center 23 is connected to the analog input end of the microcontroller 32. . The video signal input to this analog input terminal is Δ
It is converted into a digital signal by a /D converter (not shown), and is recorded in a graphic memory in units of 1 room and /field, and is read out and can be displayed on the display 33 as well as on an external display device 8. b Can be displayed.

Further, the data of this graphics data can be recorded on a built-in storage such as a floppy disk 34 or a hard disk.

Moreover, the output signal of the pulse oximeter 22 is R8-23
Connect to the input terminal 32 via the 2C cable.
It is possible to display and output the oxygen saturation 1α and heart rate data input to the S-232C boat by superimposing it on the graphics end node, or to display only the graphics end data. At the same time, it can be recorded on a recording means.

However, video message 8 from the video system pink 23 side
and the output signal of the pulse oximeter 22 as 11'! When the output operation is performed, oxygen saturation and heart rate can be displayed adjacent to the endoscopic image as shown in FIG.

Moreover, when the above-mentioned microcomputer 32 is used,
Information about the image data (e.g., ID code, patient name, etc.) can be displayed next to both displayed images of the inner IA chain. Furthermore, the captured endoscopic image data is processed and displayed.
You can also

As another modification of the second embodiment, an FE CG meter 41 may be used in place of the pulse oscimeter 22 shown in FIG. E The function with CG device 4 and display means is located on the right 1.
6, and the ECG waveform signal Y output from its output end as shown in FIG. 6 is input to the recording device 6 and the switch 26. The effects of this modification are similar to those of the second embodiment.

[Effects of the Invention] As described above, according to the present invention, endoscopic images can be used as video transmissions, and CG waveform medical-related information data can be transmitted as video transmissions.
Since the signal 5, such as an audio signal different from No. 5, is recorded in the recording means, the ECG waveform is superimposed on the endoscopic image that was recorded during playback. You can freely select whether to display it with , superimpose it, display it with ≧, or cover it.

[Brief explanation of the drawing]

1 and 2 relate to the first embodiment of the present invention, FIG. 1 is a block diagram showing the configuration of the video endoscope device of the first embodiment, and FIG. FIG. 11 is an explanatory diagram showing the situation when displaying only the endoscopic image, FIG. 3 is a block diagram showing the configuration of the second embodiment of the present invention, and FIG. 5 is a block diagram showing the configuration of the third embodiment of the present invention, and FIG. 6 is a block diagram of the second embodiment of the present invention. Figure 7 is a block diagram showing the configuration of a modified example, Figure 7 is a block diagram showing the configuration of a conventional example, and Figure 8 shows an example of a display when a signal recorded by a recording device that is completely different from the conventional example is reproduced. 1... Video endoscope 2... Video interface circuit 3... Video-ECG mixing circuit 4... Three CG devices 5... ECG interface circuit 6 ...Recording device 8...Display V,,A11
...Bi f'A internal IA mirror device 12.13...Switch J

Claims (1)

[Claims] a video endoscope equipped with an imaging means for converting endoscopic images into electrical signals; a recording device capable of recording signals input to a video input terminal and an audio input terminal; a first signal output means for outputting a signal to the video input terminal; and outputting at least one signal related to medical related information such as an electrocardiogram synchronized waveform, oxygen saturation, and heart rate to the audio input terminal; a second signal output means;
and a first switch means for switching and outputting the signal output from the second signal output means and the signal output from the video output end and the audio output end of the recording device;
a second switch means for switching between the signal output from the signal output means and the signal output from the audio output end of the recording device; A video endoscope device comprising: mixing means for superimposing signals;