JP3509207B2 - Assembly part in the endoscope - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for assembling various members to an assembling part of an endoscope, and more particularly to an assembling part such as an operating part.

[0002]

2. Description of the Related Art An optical fiber bundle such as a light guide for supplying irradiation light and an image guide for extracting an observation image is provided in an endoscope, and an optical fiber bundle as the light guide is provided in an electronic endoscope. CCD (Char
A signal line for transmitting a signal from a ge coupled device) is provided. Further, in the endoscope and the electronic endoscope, an air supply pipe and a water supply pipe for supplying air and water, a suction pipe for removing unnecessary substances in the body to be observed, and the like are provided at the tip end portion.
Then, these various members are arranged from the distal end portion to the predetermined location through the operation portion, the light guide, the air supply tube, the water supply tube and the suction tube to the light source device, the image guide to the eyepiece section, The signal line is provided to the external processor device.

Further, the operation section has an operation button for photographing,
Air supply / water supply operation buttons, suction operation buttons, and the like are arranged, and operation knobs for bending the tip portion are provided. Therefore, various members are assembled in this operation section.

[0004]

However, in the conventional operation section of the endoscope and the like, various members are assembled as described above, and the light source section (or external processor) is directed from the operation section in a direction substantially at a right angle. Since the cable is provided on the device side, there is a problem that assembly of various members becomes complicated. For this reason, the optical fiber bundles forming the light guide and the image guide are not assembled in the same state, and the durability of the optical fiber bundle varies due to interference with other members. Also, because the assembly condition of the optical fiber bundle differs depending on the assembly worker, the optical fiber may be adjusted by screws or tools when the final screwing is performed or when the inside of the operation unit is opened for adjustment after manufacturing. It is also happening that the bundle is damaged. Moreover, since the assembling is complicated, there is a problem that the assembling work takes time.

The present invention has been made in view of the above problems, and an object of the present invention is to make the assembling state of various members constant even if the workers are different, and to improve the durability of the optical fiber bundle. It is an object of the present invention to provide an assembling part in an endoscope which can eliminate damage and can finish the assembling work in a short time.

[0006]

In order to achieve the above object, the invention according to the first aspect of the invention has an optical fiber bundle,
A base plate (functioning as a support plate or a partition plate) showing an actual layout of the above-mentioned various members was provided inside the assembly part in the endoscope where various members such as a feed pipe are arranged. It is characterized by The invention according to the second aspect is characterized in that the order of assembling various members is added to the layout of the main plate. In this case, it is preferable to attach the same number to various members to be assembled.

[0007]

According to the above construction, for example, a main plate having a layout drawing is attached in the operation section, and based on the layout drawing, a light guide, an optical fiber bundle such as an image guide, an air pipe, a water pipe, etc. Can be placed. According to this arrangement diagram, it is possible to avoid interference between the optical fiber bundle and other members, and even different workers can always assemble various members in the same arrangement state. Further, in this arrangement diagram, it is preferable to attach the numbers of the assembling order to the patterns of the respective members, and in this case, the efficiency of the assembling can be improved.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a state in which a main plate is placed in an operating unit which is an assembling unit in an endoscope according to an embodiment, FIG. 2 shows the main plate itself, and FIG. The state where various members are assembled in the section is shown. The operation unit 10 shown in the drawing is applied to an electronic endoscope, and a tip end portion having a CCD, an insertion portion, and a flexible portion are arranged on the left side of the drawing, and a light source device is provided in a mounting hole 11 on the lower side of the drawing. A cable connected to (or an external processor device) is attached. An opening 12 is provided on the right side of the operation unit 10, and a lid (not shown) is attached to the opening 12.

A base plate 14 serving as a support plate or a partition plate is arranged in the operation portion 10 and a plurality of holes 15 for mounting and positioning are formed in the base plate 14. In addition, one hole 15A on the right side is attached to the mounting portion 16 on the operating portion 10 side, and the other hole 15B is attached to the mounting portion 1
7 and is fixed with screws. Then, as shown in FIG. 2, a layout drawing of various members is printed on the base plate 14. That is, to explain in order from the upper side, the pipeline 100 of the air supply pipe and the characters AIR, and the pipeline 10 of the supply pipe for injecting cleaning water (with an injection cylinder or the like) onto the lens surface of the observation window.
1 and a joint pattern 102 indicating the position of the joint of this supply pipe, LF characters indicating this supply pipe, water pipe piping 103, joint pattern 104 and WATER characters, suction pipe piping 105 And SUC, light guide (optical fiber bundle) arrangement line 106 and LG.

Therefore, various members can be assembled and arranged in the operating portion 10 while looking at the layout of the base plate 14. For example, in this assembly, first, the main plate 14 is attached to the operation unit 10
It is carried out by fixing the operation section 10 to the flexible section 18 and then fixing the operation section 10 to the flexible section 18. Various members such as an air supply pipe are previously incorporated in the flexible portion 18, and when the operating portion 10 and the flexible portion 18 are connected, these various members are inserted into the operating portion 10. Then, these various members are sequentially attached to predetermined positions in accordance with the layout drawing printed on the main plate 14, and the arrangement state in the operation portion 10 of the embodiment finally becomes as shown in FIG. Like

That is, as shown in FIG. 3, based on the above-mentioned arrangement diagram, an air supply pipe 20, a lens surface injection supply pipe 21 and a joint member 22, a water supply pipe 23 and a joint member 24, and a suction pipe. 25 and the light guide 26 are attached. Further, an air / water feed operation button 28, a switching mechanism portion 29, a suction operation button 30, a suction mechanism portion 31, and a freeze button 32 are attached to the right side portion of the operation portion 10, and the air feed pipe 20 and the water feed pipe are provided. 23 is connected to the switching mechanism section 29, and the suction pipe 25 is connected to the suction mechanism section 31. In addition,
The feed pipes from the switching mechanism unit 29 and the suction mechanism unit 31 are provided to the light source unit through a cable 34.

Then, for example, the light guide 26 is disposed below the suction pipe 25, and is gently bent in a perpendicular direction on the way to be inserted into the cable 34 and is distributed to the light source section via the cable 34. Set up. By disposing this light guide 26, it is possible to avoid interference with other members. Further, in the embodiment, the signal line 35 connected to the CCD at the tip is arranged in the circuit section 36 through the back side (in some cases, the front side) of the main plate 14 in the drawing, and this signal line 35 is also a cable. It is connected via 34 to an external processor unit.

FIG. 4 shows another example in which the numbers showing the order of assembly are added to the layout of the base plate 14. For example,
In the embodiment, in the order of assembling, as shown in the drawing, “1” is attached to the piping line 105 of the suction pipe and “to” the arrangement line 106 of the light guide.
2 "," 3 "on the pipe line 101 of the supply pipe for spraying the cleaning water on the lens surface," 4 "on the pipe line 100 of the air supply pipe,
The number "5" is attached to the pipeline 103 of the water supply pipe. On the other hand, corresponding to the above numbers, the suction pipe 25 is "1", the light guide 26 is "2", the feeding pipe 21 is "3", and the air feeding pipe 20 is
"4" and the water pipe 23 are numbered "5".
According to this, there are advantages that the various members are assembled in the order of the optimum assembling and the various members can be arranged at a predetermined place without fail.

In the embodiment, the operation section 10 of the electronic endoscope has been described. However, the present invention can be applied to an endoscope provided with an image guide for optically observing an image.
In this case, there is an advantage that the image guide can be attached accurately.

[0015]

As explained above, according to the invention of the first aspect, the actual layout of the various members is shown on the ground plane, so that different workers can assemble the various members. Is always constant, and variations in durability of the optical fiber bundle and damage can be eliminated. Moreover, there is an advantage that the assembling work can be completed in a short time.

According to the second aspect of the present invention, since the order of assembling is added to the layout of the main plate, the work efficiency of assembling is improved and various members are surely attached at predetermined places. It becomes possible.

[Brief description of drawings]

FIG. 1 is a diagram showing a main plate placed on an assembly section (operation section) in an endoscope according to an embodiment of the present invention.

FIG. 2 is a diagram showing a configuration of a main plate of the embodiment.

FIG. 3 is a diagram showing an assembled state of the operation unit of the embodiment.

FIG. 4 is a diagram showing another example in which the order of assembling is added to the main plate.

[Explanation of symbols]

10 ... Operation part, 14… Main plate, 20 ... Air pipe, 21 ... Supply pipe, 23 ... water pipe, 25 ... suction tube, 26 ... Light guide.

Front Page Continuation (72) Inventor Sota Hirano 1-324 Uetakecho, Omiya City, Saitama Prefecture Fuji Photo Optical Co., Ltd. (56) Reference JP-A-57-39826 (JP, A) (58) Field (Int.Cl. ⁷ , DB name) G02B 23/24 A61B 1/00 300

Claims (2)

(57) [Claims] 1. A base plate showing an actual layout of the above-mentioned various members is provided inside the assembly section in an endoscope in which various members such as an optical fiber bundle and a feeding pipe are arranged inside. The assembly part in the endoscope characterized by the above. 2. The assembling part in the endoscope according to claim 1, wherein the order of assembling various members is added to the layout of the main plate.