JPH0561605B2 - - Google Patents
Info
- Publication number
- JPH0561605B2 JPH0561605B2 JP57141569A JP14156982A JPH0561605B2 JP H0561605 B2 JPH0561605 B2 JP H0561605B2 JP 57141569 A JP57141569 A JP 57141569A JP 14156982 A JP14156982 A JP 14156982A JP H0561605 B2 JPH0561605 B2 JP H0561605B2
- Authority
- JP
- Japan
- Prior art keywords
- tube
- optical fiber
- flexible
- fiber bundle
- protective tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000013307 optical fiber Substances 0.000 claims description 30
- 230000001681 protective effect Effects 0.000 claims description 27
- 238000003780 insertion Methods 0.000 claims description 17
- 230000037431 insertion Effects 0.000 claims description 17
- 238000005452 bending Methods 0.000 claims description 8
- 239000000835 fiber Substances 0.000 description 24
- 238000005286 illumination Methods 0.000 description 6
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
- G02B23/24—Instruments or systems for viewing the inside of hollow bodies, e.g. fibrescopes
- G02B23/26—Instruments or systems for viewing the inside of hollow bodies, e.g. fibrescopes using light guides
Landscapes
- Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Instruments For Viewing The Inside Of Hollow Bodies (AREA)
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
- Endoscopes (AREA)
Description
【発明の詳細な説明】
本発明は光学繊維束が挿通された内視鏡挿入部
の湾曲部における光学繊維束を滑りが良く、可撓
性に富む保護チユーブで直接外装することによ
り、外径を小さく且つ光学繊維束の破損を防止す
ることを可能にする内視鏡用光学繊維束の外装装
置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention directly covers the optical fiber bundle at the curved part of the endoscope insertion section through which the optical fiber bundle has been inserted with a highly flexible protective tube, thereby reducing the outer diameter. The present invention relates to an exterior device for an optical fiber bundle for an endoscope, which makes it possible to reduce the size of the optical fiber bundle and prevent damage to the optical fiber bundle.
近年、体腔内に細長の挿入部を挿入することに
より、体腔内臓器等を観察したり、必要に応じ鉗
子チヤンネル内を挿通した鉗子を用いて生体内組
織を採取して患部を詳しく診断したりすることの
できる医療用内視鏡が広く用いられている。又、
工業用分野においては工業用内視鏡が、ボイラ、
化学プラント類等の管内の状態を観察あるいは管
内表面の付着物を採取して検査する等保守面にも
利用されている。 In recent years, by inserting a long and thin insertion section into a body cavity, organs within the body cavity can be observed, and if necessary, in-vivo tissues can be collected using forceps inserted through the forceps channel to diagnose the affected area in detail. Medical endoscopes are widely used. or,
In the industrial field, industrial endoscopes are used for boilers,
It is also used for maintenance purposes, such as observing the condition inside pipes of chemical plants, etc., and collecting and inspecting deposits on the inner surface of pipes.
上記内視鏡には挿入部の先端側周辺に例えば上
下、左右等に湾曲自在となる湾曲部を有する軟性
内視鏡と、挿入部が硬性で略直線状の硬性内視鏡
とがある。 The above-mentioned endoscopes include flexible endoscopes that have a curved part around the distal end side of the insertion part that can be bent vertically, left and right, and rigid endoscopes that have a rigid and substantially straight insertion part.
これら内視鏡においては、挿入部を挿入した
際、手元側に供給された照明光を光学繊維束で形
成したライトガイドフアイバにて伝達して挿入部
先端側の対象物側に照明光を出射する照明光学系
と、該照明光学系によつて照明された対象物を結
像して像伝達手段を介して手元側の接眼部後方か
ら観察できる観察光学系とが配設されている。 In these endoscopes, when the insertion tube is inserted, the illumination light supplied to the proximal side is transmitted through a light guide fiber formed of an optical fiber bundle, and the illumination light is emitted toward the object at the tip of the insertion tube. An illumination optical system that forms an image of the object illuminated by the illumination optical system, and an observation optical system that can be observed from behind the eyepiece on the hand side via an image transmission means.
上記像伝達手段においても、軟性内視鏡の場合
には光学繊維束、つまりイメージガイドフアイバ
を用いている。 In the case of a flexible endoscope, the image transmission means also uses an optical fiber bundle, that is, an image guide fiber.
従来、これらライトガイドフアイバ及びイメー
ジガイドフアイバ等の光学繊維束は可撓性のチユ
ーブで被覆され、湾曲部においては湾曲部が湾曲
操作された際、挿入部内を挿通されている他の内
臓物と衝合して破損することを防止するためにさ
らに保護チユーブで被覆されている。 Conventionally, these optical fiber bundles such as light guide fibers and image guide fibers are covered with flexible tubes, and when the curved part is bent, the bundles of optical fibers, such as light guide fibers and image guide fibers, have been covered with flexible tubes, and when the curved part is bent, the bundles of optical fibers such as light guide fibers and image guide fibers have been covered with other internal objects that have been inserted into the insertion part. It is further covered with a protective tube to prevent collision and damage.
第1図は本出願人による実開昭56−36302号公
報に開示されている従来の保護チユーブの要部断
面を示す。 FIG. 1 shows a cross section of a main part of a conventional protective tube disclosed in Japanese Utility Model Application Publication No. 56-36302 filed by the present applicant.
同図において、内視鏡1の体腔内挿入部2は、
基端部を操作部本体(図示せず)に接続された長
尺の可撓管3と、の先端に連なり、操作部本体で
の操作により所望の方向に湾曲する湾曲管4と、
この湾曲管4の先端に固着された短筒状の先端部
5とで構成されている。そして、上記先端部5に
は、周知のように観察用対物窓6、照明用窓(図
示せず)等が配設されている。湾曲管4、可撓管
3内には、一端を先端部5に固定されたイメージ
ガイドフアイバ7、ライトガイドフアイバ(図示
せず)が引き通すように配設されている。 In the figure, the body cavity insertion section 2 of the endoscope 1 is
a long flexible tube 3 whose base end is connected to an operating section main body (not shown); a curved tube 4 connected to the distal end of the flexible tube 3 and curved in a desired direction by operation with the operating section main body;
It consists of a short cylindrical tip 5 fixed to the tip of the curved tube 4. As is well known, the distal end portion 5 is provided with an observation objective window 6, an illumination window (not shown), and the like. Inside the curved tube 4 and flexible tube 3, an image guide fiber 7 and a light guide fiber (not shown), one end of which is fixed to the distal end 5, are arranged so as to be drawn therethrough.
これらのフアイバ、例えばイメージガイドフア
イバ7は可撓性(外装)チユーブ8で被覆され、
湾曲管4においてはさらに滑らかで伸縮性のある
柔軟な保護チユーブ9で被覆されていて、その一
端はフアイバ7の一端と共に先端部5の対物レン
ズ枠10に固定され、他端は可撓管3内で開放さ
れた端部となつている。そして、この保護チユー
ブ9の非固定側の端部9aは、保護チユーブ9の
中心軸方向に絞られて、保護チユーブ9の外径よ
り細い径の先細形状とされている。 These fibers, for example the image guide fiber 7, are covered with a flexible (sheath) tube 8,
The curved tube 4 is further covered with a smooth, stretchable and flexible protective tube 9, one end of which is fixed to the objective lens frame 10 of the tip 5 together with one end of the fiber 7, and the other end is covered with the flexible tube 3. It has an open end inside. The non-fixed end 9a of the protective tube 9 is tapered in the direction of the central axis of the protective tube 9 and has a diameter smaller than the outer diameter of the protective tube 9.
一方、可撓管3は、周知のように、第2図に示
す如く、薄い帯状の弾性板を螺旋状に巻いて形成
した管状のフレツクス(可撓性)11の外周部に
ブレード(金網)12を嵌装し、その外周面に合
成樹脂材からなる外套皮13を披着して構成した
もので、フレツクス11、ブレード12、外套皮
13の三層で構成されている。 On the other hand, as is well known, as shown in FIG. 2, the flexible tube 3 has a braid (wire mesh) attached to the outer periphery of a tubular flex 11 formed by spirally winding a thin band-shaped elastic plate. 12, and a mantle 13 made of a synthetic resin material is attached to the outer circumferential surface of the mantle, and is composed of three layers: the flex 11, the blade 12, and the mantle 13.
このように構成された従来例における可撓性チ
ユーブ8、保護チユーブ9は、それぞれ滑りの良
いもので形成されているが、光学繊維を幾層に被
覆するため、湾曲操作の際光学繊維が円滑に動か
ないで、折損したり、外径が太くなり体腔内に挿
入する際患者に苦痛を強いたり、挿入部位の径が
所定値以上ないと挿入できなくなるという欠点が
あつた。 The flexible tube 8 and the protective tube 9 in the conventional example configured as described above are each made of a material with good slippage, but since the optical fibers are coated in several layers, the optical fibers do not move smoothly during the bending operation. They have the disadvantages that they do not move easily and break, that their outer diameter becomes too thick, causing pain to the patient when inserted into a body cavity, and that they cannot be inserted unless the diameter of the insertion site exceeds a predetermined value.
本発明は上述した点にかんがみてなされたもの
で、湾曲部における光学繊維束を滑りが良好で、
可撓性に富む保護チユーブで直接被覆し、それ以
外の光学繊維束を保護チユーブとは異なる可撓性
の可撓性チユーブで直接被覆すると共に、保護チ
ユーブと可撓性チユーブは各端部において可撓性
を有して接続されていることにより、光学繊維の
折損を防止すると共に、外径を小さくできる内視
鏡用光学繊維束の外径装置を提供することを目的
とする。 The present invention has been made in view of the above-mentioned points, and is capable of smoothly sliding an optical fiber bundle at a curved portion.
The other optical fiber bundles are directly covered with a highly flexible protective tube, and the other optical fiber bundles are directly covered with a flexible tube different from the protective tube, and the protective tube and flexible tube are connected at each end. It is an object of the present invention to provide an outer diameter device for an optical fiber bundle for an endoscope, which prevents breakage of optical fibers and can reduce the outer diameter by being connected with flexibility.
前記目的を達成するため本発明は、光学繊維束
が挿入された挿入部の途中に湾曲操作可能となる
湾曲部を有する内視鏡において、先端部から前記
湾曲部における光学繊維束を滑りが良好で、可撓
性に富む保護チユーブで直接被覆し、それ以外の
光学繊維束を上記保護チユーブとは異なる可撓性
の可撓性チユーブで直接被覆すると共に、上記保
護チユーブと可撓性チユーブは各端部において可
撓性を有して接続されている。 In order to achieve the above object, the present invention provides an endoscope having a curved part in the middle of the insertion part into which the optical fiber bundle is inserted, which allows the optical fiber bundle to be operated in a bending manner. Then, the other optical fiber bundles are directly covered with a highly flexible protective tube, and the other optical fiber bundles are directly covered with a flexible tube that is different from the protective tube, and the protective tube and flexible tube are Flexibly connected at each end.
以下、図面を参照して本発明を具体的に説明す
る。 Hereinafter, the present invention will be specifically explained with reference to the drawings.
第3図及び第4図は本発明の第1実施例に係
り、第3図は第1実施例を用いた軟性内視鏡を示
し、第4図は第1実施例の要部を示す。 3 and 4 relate to a first embodiment of the present invention, FIG. 3 shows a flexible endoscope using the first embodiment, and FIG. 4 shows main parts of the first embodiment.
これらの図において、軟性内視鏡21は、可撓
管で被覆形成された長細の挿入部22と、該挿入
部22の基端部に連設された太径の操作部23
と、該操作部23後端に形成された接眼部24と
から構成され、操作部23側部にはライトガイド
ケーブル25が延出され、このライトガイドケー
ブル25の端部に設けたコネクタ26を図示しな
い光源装置に装着することにより、照明光が供給
されるようになつている。 In these figures, a flexible endoscope 21 includes an elongated insertion section 22 covered with a flexible tube, and a large-diameter operation section 23 connected to the proximal end of the insertion section 22.
and an eyepiece section 24 formed at the rear end of the operating section 23. A light guide cable 25 extends from the side of the operating section 23, and a connector 26 provided at the end of the light guide cable 25. Illumination light is supplied by attaching it to a light source device (not shown).
上記挿入部22の先端部27に隣接する後方部
分に湾曲自在となる湾曲部28が形成され、操作
部23における湾曲操作レバー29を回動操作す
ることにより、図示しない操作用ワイヤを介して
前記湾曲部28を上下、左右等に湾曲できるよう
に構成されている。 A bendable bending part 28 is formed in the rear part adjacent to the distal end part 27 of the insertion part 22, and by rotating the bending operation lever 29 in the operation part 23, the The bending portion 28 is configured to be able to bend vertically, horizontally, etc.
上記挿入部22内には、第4図に示すように光
学繊維束で形成されたライトガイドフアイバ30
が挿通され、操作部23からライトガイドケーブ
ル25内をチユーブ状部材で被覆されて挿通され
ている。 Inside the insertion section 22, as shown in FIG. 4, there is a light guide fiber 30 formed of an optical fiber bundle.
is inserted into the light guide cable 25 from the operating section 23 and covered with a tube-shaped member.
つまり、先端部27内におけるライトガイドフ
アイバ30は硬性若しくは硬性に近いパイプ部材
31で固定され、該先端部27に隣接する湾曲部
28の部分は可撓性で且つ(少くとも内周面が)
滑りの良好な例えば延伸発泡性四沸化エチレン樹
脂等を用いた保護チユーブ32で被覆され、湾曲
部28後方の可撓部は可撓性の(例えばウレタン
樹脂等を用いた)チユーブ33で被覆されてい
る。 In other words, the light guide fiber 30 in the tip 27 is fixed with a rigid or nearly rigid pipe member 31, and the portion of the curved portion 28 adjacent to the tip 27 is flexible (at least on the inner circumferential surface).
It is covered with a protective tube 32 made of, for example, stretchable foamable tetrafluoroethylene resin with good sliding properties, and the flexible part behind the curved part 28 is covered with a flexible tube 33 (made of, for example, urethane resin). has been done.
上記パイプ部材31の後端外周は肉薄にされ、
該肉薄の後端外周に保護チユーブ32若干絞るよ
うに細径にした前端部を外嵌して糸状部材で絞め
つけるように巻回し(必要に応じ接着剤で)、固
定されている。又、保護チユーブ32の後端は同
一径のチユーブ33前端と当接し、該当接する部
分外周に嵌装された、例えばシリコン樹脂系接着
剤を内周面に塗布した接続チユーブ34にて両チ
ユーブ32,33は接続されている。 The outer periphery of the rear end of the pipe member 31 is made thin,
The front end portion of the protective tube 32, which has a slightly narrowed diameter, is fitted onto the outer periphery of the thin rear end, and is fixed by being wrapped tightly with a thread-like member (with adhesive if necessary). The rear end of the protective tube 32 is in contact with the front end of a tube 33 having the same diameter, and a connecting tube 34 whose inner peripheral surface is coated with silicone resin adhesive, for example, is fitted to the outer periphery of the contacting portion to connect both tubes 32. , 33 are connected.
このように構成された第1実施例においては、
大きな可撓性を必要とされる部分の湾曲部28に
おいては、可撓性を有すると共に、滑りの良好な
保護チユーブ32で直接ライトガイドフアイバ3
0を被覆保護しているので、外径を小さくできる
と共に、湾曲操作に対してもフアイバ束外周が保
護チユーブ33内周面に当接した場合、摩擦抵抗
が小さいため、局部的に大きな力が作用せずに
(力が均一に)分散される。従つて折損すること
が防止ないし軽減される。又、湾曲部28より後
方の可撓部は必要とされる程度の可撓性の部材で
形成するようにすることにより、耐久性を有する
ようにできる。 In the first embodiment configured in this way,
In the curved portion 28 where great flexibility is required, the light guide fiber 3 is directly attached to the protective tube 32 which is flexible and has good sliding properties.
Since the outer diameter of the fiber bundle is covered and protected, the outer diameter can be reduced, and when the outer circumference of the fiber bundle comes into contact with the inner circumferential surface of the protective tube 33 during a bending operation, the frictional resistance is small, so a large force is locally applied. It is distributed without any action (force is evenly distributed). Therefore, breakage is prevented or reduced. Further, by forming the flexible portion rearward of the curved portion 28 with a member having a necessary degree of flexibility, durability can be ensured.
尚、上述においては光学繊維束としてライトガ
イドフアイバ30について述べてあるが、イメー
ジガイドフアイバについても同様に適用できる。 In addition, although the light guide fiber 30 is described as an optical fiber bundle in the above description, the same applies to an image guide fiber.
第5図は、本発明の第2実施例を示す。 FIG. 5 shows a second embodiment of the invention.
同図に示すように、第2実施例においては、保
護チユーブ32の後端側は、可撓性のチユーブ3
3′の前端側を拡径にして保護チユーブ32外周
に重ね、この重ねた部分を接着することにより接
続されている。この他は第1実施例と同様であ
る。 As shown in the figure, in the second embodiment, the rear end side of the protective tube 32 is a flexible tube 3.
The front end side of 3' is enlarged in diameter and overlapped with the outer periphery of the protective tube 32, and the overlapping portion is bonded to connect. Other than this, the second embodiment is the same as the first embodiment.
この実施例の作用効果は、上述の第1実施例と
略同様のものとなるが、第1実施例に比べ、接続
チユーブ34を必要としない利点を有する。 The effects of this embodiment are substantially the same as those of the first embodiment described above, but it has the advantage that the connection tube 34 is not required compared to the first embodiment.
尚、この実施例はイメージガイドフアイバにも
適用できることは明らかである。 It is clear that this embodiment can also be applied to image guide fibers.
又、保護チユーブ32の前端はパイプ部材31
に糸状部材で締めつけるようにして固定してある
が、当接する内外周面を接着剤で固定しても良
い。 Further, the front end of the protective tube 32 is connected to the pipe member 31.
Although it is fixed by tightening it with a thread-like member, it is also possible to fix the abutting inner and outer circumferential surfaces with an adhesive.
尚、本発明は湾曲部におけるライトガイドフア
イバ及びイメージガイドフアイバ両部材を被覆す
ることは勿論、少なくともいずれかを被覆するも
のは本発明の範ちゆうに入るものである。 It should be noted that the present invention covers both the light guide fiber and the image guide fiber in the curved portion, and any method that covers at least either of them falls within the scope of the present invention.
以上述べたように本発明によれば、湾曲部にお
ける光学繊維束を、滑りが良く、可撓性に富む保
護チユーブで直接被覆し、他の部分を可撓性チユ
ーブで被覆するようにしてあるので、外径を小さ
く且つ光学繊維の折損を防止できるという利点を
有する。 As described above, according to the present invention, the optical fiber bundle at the curved portion is directly covered with a protective tube that has good slippage and is highly flexible, and the other portions are covered with a flexible tube. Therefore, it has the advantage that the outer diameter can be made small and breakage of the optical fiber can be prevented.
第1図及び第2図は従来例に係り、第1図は従
来例を用いた内視鏡挿入部の先端側を一部切り欠
いて示す側面図、第2図は第1図の要部を一部切
り欠いて示す拡大側面図、第3図及び第4図は本
発明の第1実施例に係り、第3図は第1実施例を
用いた軟性内視鏡を示す斜視図、第4図は第1実
施例の要部を示す断面図、第5図は本発明の第2
実施例の要部を示す断面図である。
21……軟性内視鏡、22……挿入部、23…
…操作部、28……湾曲部、30……ライトガイ
ドフアイバ、31……パイプ部材、32……保護
チユーブ、33,33′……チユーブ、34……
接続チユーブ。
1 and 2 relate to a conventional example; FIG. 1 is a partially cutaway side view of the distal end side of the endoscope insertion section using the conventional example; and FIG. 2 is the main part of FIG. 1. FIGS. 3 and 4 are an enlarged side view partially cut away and relate to the first embodiment of the present invention, and FIG. 3 is a perspective view showing a flexible endoscope using the first embodiment, and FIGS. 4 is a sectional view showing the main parts of the first embodiment, and FIG. 5 is a sectional view showing the main part of the first embodiment.
FIG. 3 is a cross-sectional view showing the main parts of the embodiment. 21... Flexible endoscope, 22... Insertion section, 23...
...Operation unit, 28...Bending portion, 30...Light guide fiber, 31...Pipe member, 32...Protection tube, 33, 33'...Tube, 34...
connection tube.
Claims (1)
操作可能となる湾曲部を有する内視鏡において、
上記光学繊維束のうち湾曲部が位置する部分を、
少なくとも内周面の滑りが良好、可撓性に富む保
護チユーブで直接被覆し、上記湾曲部に位置する
部分より後方の光学繊維束の部分を上記保護チユ
ーブとは異なる可撓性の可撓性チユーブで直接被
覆すると共に、上記保護チユーブと可撓性チユー
ブは各端部において接続されていることを特徴と
する内視鏡用光学繊維束の外装装置。1. In an endoscope that has a bending part that can be bent in the middle of the insertion part into which the optical fiber bundle is inserted,
The part of the optical fiber bundle where the curved part is located,
Directly cover the optical fiber bundle with a highly flexible protective tube with good slippage on at least the inner circumferential surface, and cover the part of the optical fiber bundle behind the part located in the curved part with a flexibility different from that of the protective tube. 1. An exterior device for an optical fiber bundle for an endoscope, characterized in that the protective tube and the flexible tube are directly covered with a tube, and the protective tube and the flexible tube are connected at each end.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP57141569A JPS5930504A (en) | 1982-08-13 | 1982-08-13 | External mounting device of optical fiber bundle for endoscope |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP57141569A JPS5930504A (en) | 1982-08-13 | 1982-08-13 | External mounting device of optical fiber bundle for endoscope |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5930504A JPS5930504A (en) | 1984-02-18 |
JPH0561605B2 true JPH0561605B2 (en) | 1993-09-06 |
Family
ID=15295023
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP57141569A Granted JPS5930504A (en) | 1982-08-13 | 1982-08-13 | External mounting device of optical fiber bundle for endoscope |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5930504A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012170742A (en) * | 2011-02-23 | 2012-09-10 | Fujifilm Corp | Endoscope |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60176015A (en) * | 1984-02-23 | 1985-09-10 | Olympus Optical Co Ltd | Endoscope |
JPS61204982A (en) * | 1985-03-08 | 1986-09-11 | Nippon Telegr & Teleph Corp <Ntt> | Field effect transistor |
JPH071612Y2 (en) * | 1985-03-27 | 1995-01-18 | オリンパス光学工業株式会社 | Endoscope |
JPH0785129B2 (en) * | 1986-02-04 | 1995-09-13 | 旭光学工業株式会社 | Optical fiber bundle for endoscope |
JPH0695165B2 (en) * | 1986-03-11 | 1994-11-24 | 三菱電線工業株式会社 | Image guide manufacturing method |
JP2503421B2 (en) * | 1986-06-17 | 1996-06-05 | 富士写真光機株式会社 | Endoscope using solid-state imaging device |
JPH0687090B2 (en) * | 1989-01-31 | 1994-11-02 | ホーヤ株式会社 | Metal tube coated optical rod |
JPH02293808A (en) * | 1989-05-09 | 1990-12-05 | Asahi Optical Co Ltd | Optical fiber bundle for endoscope |
JP4648583B2 (en) * | 2001-07-09 | 2011-03-09 | Hoya株式会社 | Flexible endoscope |
JP5604409B2 (en) | 2011-01-19 | 2014-10-08 | 富士フイルム株式会社 | Endoscope |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5474514A (en) * | 1977-11-25 | 1979-06-14 | Sumitomo Electric Ind Ltd | Flexible tube and its manufacturing method |
-
1982
- 1982-08-13 JP JP57141569A patent/JPS5930504A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5474514A (en) * | 1977-11-25 | 1979-06-14 | Sumitomo Electric Ind Ltd | Flexible tube and its manufacturing method |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012170742A (en) * | 2011-02-23 | 2012-09-10 | Fujifilm Corp | Endoscope |
Also Published As
Publication number | Publication date |
---|---|
JPS5930504A (en) | 1984-02-18 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4807598A (en) | Endoscope having fixing and expanding members | |
JPH0561605B2 (en) | ||
JP3325103B2 (en) | Cover-type endoscope | |
JP2002209832A (en) | Endoscope | |
JP3756874B2 (en) | Endoscope | |
JP3590199B2 (en) | Endoscope | |
JP3499987B2 (en) | Babyscope insertion tube flexible tube | |
JP2563969B2 (en) | Endoscope for small diameter | |
JP3485648B2 (en) | Endoscope cover | |
JP3229709B2 (en) | Endoscope insertion section | |
JP2000185013A (en) | Endoscope | |
JPH0328815A (en) | Industrial endoscope | |
JPH0824341A (en) | Catheter tube | |
JPH03184011A (en) | Protective tube for insertion part of industrial endoscope | |
JPH0142087Y2 (en) | ||
JP3371385B2 (en) | Cover-type endoscope | |
JPS6348241Y2 (en) | ||
JP4241969B2 (en) | Endoscope | |
JPH0142086Y2 (en) | ||
JPS61162929A (en) | Endoscope | |
JPS5986008A (en) | Supporting device for fiber bundle | |
JPH01287523A (en) | Endoscope insertion assistant | |
JP4017735B2 (en) | Endoscope insertion part | |
JPH0336324Y2 (en) | ||
JPS6348538B2 (en) |