JPS5969025A - Endoscope - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides an endoscopic system that uses display means such as a liquid crystal plate or a cathode ray tube to observe and display an object image guided to a solid-state image sensor through an image kite. About the mirror 1°
There are things to do.

In general, a conventional endoscope has a basic VC, as shown in Fig. 1, which has a distal end 1 with a built-in objective lens, etc., and a distal end 1 that is connected to the distal end 1 and can be bent freely by manual operation 1. A curved part 2 that carries a load, a flexible part 3 of an appropriate length following the curved part 2, a 1000" υ operating part 4 connected to the rear end of the flexible part 3, and a An image kite 5 made of an optical fiber bundle is guided through the section 3 to the operating section 4, and an object image (5) guided by the image kite 5.
The optical finder 6 attached to the rear end of the operation @Is 4, the power supply device 7, and the light source device-7 are used to observe the Φ part image).
and the operating section (C connected light kite tube 8
and operation)'41<4. Soft part 3. It is made of an optical fiber bundle that is guided through the R curved part 2 from the light source device 7 to the tip 1 and used for illuminating the surface of the object to be observed with the light from the light source device 57. From LightKite 9 (1) The endoscope is used for its purpose 7, LC multiple people 6 internal observation, object image, 3. continuous recording,
Connected to the J”V system for peace of mind such as lectures, etc.
It is often used in this state, but conventionally it has been common to attach a camera to the operation unit 4 in parallel with the optical viewfinder to achieve this purpose. Ta. As a result, the area around the operation unit (l'i) became significantly larger and heavier, resulting in a heavy burden on the operator.Furthermore, since the TV camera was directly attached to the operation unit, the area around the operation unit became significantly larger and heavier. The number of coats coming out from the tube increased, which also caused poor operability.Inherently, internal vision is dull, and due to the purpose of use, various operations are always required to be done quickly and appropriately. The above-mentioned enlargement and double-layered operation of the operating section 1fi1, as well as a decrease in operability, have become major obstacles to achieving these goals, and have even endangered the lives of patients.

In view of the above circumstances, the present invention U is a solid state capable of receiving an object image guided by an image kite to an endoscope]J1) Image element and a video signal processing circuit that processes a video signal from the solid-state image sensor It consists of a liquid crystal (LC) panel and a display device including a line tube (CI (TJ, etc.)) that displays and carries the object image by the video input from the video processing circuit. Equipped with an electronic viewfinder, the display section is connected to the endoscope (Kurisaku section), making it easier for multiple people to observe and lecture at the same time, and also making the operation section smaller and lighter. This is what I did, but
Below, based on the illustrated example, the same or similar parts and parts VC are the same as those in FIG. Put it down, 1o
11 is a finder hook installed adjacent to the rear of the operation unit 4, and 11 is an appropriate point Δ in the finder hook 1o.
A solid-state image sensor such as a CJ) installed in the device and capable of receiving light from the image kite 5 via the relay lens 12; 13 is a finder box;
A preamplifier, a process circuit, a Ni'SC encoder, a four-stage circuit, and a record I'IJ4I: Control 1iH
A display ffj control circuit 16 that inputs the video signal from the video signal processing circuit 15; a light source device 7; and a control box incorporating a power supply device (not shown), etc. , 17 is
The control box 13 is electrically connected to the appropriate location inside the finder box 10. Light kite tube8. A display section consisting of a liquid crystal plate, etc., connected to the output end of the display side 11 circuit 16 through the operation glI4 and l)-to'HJ1B inserted into the finder box 1°;
19 is the nice play section 17 K. A face plate installed in front of the screen display @B 17 to enlarge the displayed image if necessary; 2° is the light kite tube 8. Operation unit 4. The back surface of the main beam spray part 17 of the light source device 7 inserted into the finder box 10 (in the case of a transmission type) or the +>iJ surface (in the case of a reflection type)
This is a light guide made of a bundle of optical fibers that guides the light to the light source.

Since the endoscope according to the present invention is configured as described above, not only can the area around the operating section be significantly reduced in size and weight, but also it is possible to provide an endoscope that is convenient for various manual operations and handling. can. In this case, if the image kite 5 is guided into the light nophyto tube 8 (through the control bonox 13) and the relay lens 12 and solid-state image sensor 11 are installed at the exit end of the 10 can be substantially incorporated into the operating section 4, making it possible to further reduce the size and weight of the operating section.

Also, instead of using the light kite 20 to illuminate the liquid crystal panel of the display section 17, a lamp placed close to the display sound 1517 may be used. mosquito\
It is advantageous to use a lamp that provides a constant amount of illumination light.

FIG. 3 shows an embodiment in which the b display section 17 ((shadow) uses a 1-channel three-ray tube. In this case, k
4j" 6j %' fl-, finder box 10
1) Ii' where clear vision is achieved at a position where no external light enters
l-! Does it need to be installed within the department? Na” 5, Yin Yi;
) (In front of the line 17 (if necessary, an ace plate 19 may be installed, and a contact Lb! lens 6 may be provided to make it easier to see. In this embodiment The area around the operating section is also small, similar to the embodiment shown in Figure 2.
As explained in connection with the embodiment of the 21st Vζ1, the image kite 5 is passed through the light kite tube 8 ffi into the control box 13 and its injection 1:, 1aVc relay lens 12 By installing the solid-state imaging 71% sensor 11, it is possible to provide an endoscope that is not only small but also has superior operation.

That is, FIGS. a1''54 to 6 show a preferred example of an endoscope operation unit equipped with the electronic finder of configuration 1.The operation unit 4 includes various well-known devices such as an operation handle 21. A cylindrical finder hook 10 that protrudes to an appropriate height is attached to the operating section 4, and the image kite 5 is attached to the operating section 4 via a rotating ring 10a that is rotatably mounted inside the operating section 4. It is mounted rotatably around the optical axis of the finder box 9, and furthermore, the opening of the finder box 10 is semi-fixedly mounted on the inside of the outer wall of the finder box and has a protruding grip piece 101). The display section 17 having the structure described above is mounted via the ring 10c so as to be rotatable alone or together with the face plate 19 and the eyepiece 6. Therefore, the endoscope can be used in any posture. Even if the finder box 10 and /'
Alternatively, by appropriately rotating the adjustment ring lOc in the direction of the arrow in FIG. 6, the object image can always be observed in the royal state.

In this case, as shown in FIG.
Furthermore, an encoder 10el/ji; and a photo sensor 10F are also provided, and these are used to determine how many times the finder box 10 has rotated from the reference position, and display the rotation angle within the visual field, for example. I'm starting to get it. This angle indexing device may be of an electromagnetic type or may be a mechanical counter.

7Nd, the finder hook 10 having the configuration as shown in FIGS. 4 and 6 is separated from the operating section 4 and is set to 1 to 1 to an acuate or hermetically-acute shape. 1, and use it in the same way as when wearing glasses, or use it in a completely broken state to be able to see and perceive the object image.In this case, finder hooks are used. 1o and the operation part 4, it is sufficient to connect them using 22 flexible coats with built-in lead wires of a safe type.
and the operating section 4 may be removably connected using a connecting device γ123 such as a plug-and-jack device.

With this configuration, it is possible to install a plurality of finder boxes in the operating section 4, and it is possible to provide an internal view tXlk that is extremely suitable for simultaneous observation by a plurality of people, for recreation, etc.

No. 81 No. 1 shows an embodiment in which the finder box 10 having the same structure as that shown in FIG. 7 is used in a suspended state from the stand 24. In this embodiment, A second finder hook 10' connects the flexible cord 2 using a connecting device 23, such as a plug-and-jack device similar to that described in connection with the embodiment of FIG.
2 is shown in a case where they are removably pulled out in parallel or in 16 rows from an appropriate position in the middle of 2. In this case as well, the seventh
Like the embodiment shown in the figure, it is suitable for simultaneous observation by multiple people, lectures, etc.

Although the preferred embodiments of the present invention have been described above, T1 may be used in appropriate combinations thereof, and various modifications may be made.

As described above, according to the present invention, it is possible to provide a new type of endoscope that is small and lightweight, has excellent operability, and is extremely suitable for simultaneous observation by multiple people, lectures, etc.

Furthermore, according to the present invention, all the operation parts can be moved arbitrarily while the finder box is fixed at a fixed position, so the operator can operate the V without moving his or her face. It has the advantage of not tiring you out.

[Brief explanation of the drawing]

Fig. 1 is a schematic diagram showing the basics (!') of a conventional endoscope, and Figs. 2 to 8 are main part configuration diagrams showing various different embodiments of the endoscope according to the present invention. Yes. 4...Operation unit, 5...Image kite, 7...
・・Light source device, 8・・・Light power Itonayubu, 9・
... Light kite, IO ... Finder hook, 11 ... Solid-state image sensor, 13 ... Camera control box, 15 ... Image processing circuit, 1
6. Ministry of Labeling System]! Circuit, 17...Display section, 20...Light kite, 22...Flexible code), 23...Connection device, 24...Stand. Continued from page 1...72) Inventor Yasuhiro Ueda 2-43-2 Hatagaya, Shibuya-ku, Tokyo Olympus Optical Industry Co., Ltd. Inventor Susumu Nishigaki - 2-43-2 Hatagaya, Shibuya-ku, Tokyo Olympus Inventor: 7 years old, Atsushi Olympus, 2-43-2 Hatagaya, Shibuya-ku, Tokyo Inventor: Yuzuki Yuzuki, 43-2, 2-43-2 Hatagaya, Shibuya-ku, Tokyo Inventor: Yuzuki Yuzuki, 2-43-2 Hatagaya, Shibuya-ku, Tokyo In-company 72 Inventor Akira Nakamura Kawakira 2-43-2 Hatagaya, Shibuya-ku, Tokyo Within Olympus Optical Industry Co., Ltd.

Claims (1)

[Scope of Claims] (1) The display section of the electronic finder is equipped with a display unit that observes an object image guided to a solid-state image sensor through an image kite, An endoscope connected to a mirror operation unit. (2) The endoscope according to item (1), wherein the nice play part of the electronic finder is rotatably arranged around the optical axis of the image kite. (The nice play part of the 31 electronic finder is removed by the 11
The endoscope according to claim (1), wherein the endoscope is operably connected to the user. (4) Is the electronic viewfinder V to each other? : The endoscope according to any one of (2) and (3), comprising at least two display units connected to a detachable iJ function.