JPH0411681Y2 - - Google Patents
Info
- Publication number
- JPH0411681Y2 JPH0411681Y2 JP1983109510U JP10951083U JPH0411681Y2 JP H0411681 Y2 JPH0411681 Y2 JP H0411681Y2 JP 1983109510 U JP1983109510 U JP 1983109510U JP 10951083 U JP10951083 U JP 10951083U JP H0411681 Y2 JPH0411681 Y2 JP H0411681Y2
- Authority
- JP
- Japan
- Prior art keywords
- tube
- protective tube
- endoscope
- curved
- section
- 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
Links
- 230000001681 protective effect Effects 0.000 claims description 24
- 239000013307 optical fiber Substances 0.000 claims description 11
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 claims description 2
- 229920000295 expanded polytetrafluoroethylene Polymers 0.000 claims 1
- 230000037431 insertion Effects 0.000 description 15
- 238000003780 insertion Methods 0.000 description 15
- 239000000835 fiber Substances 0.000 description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- 230000003014 reinforcing effect Effects 0.000 description 6
- 230000003287 optical effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 239000007779 soft material Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- POIUWJQBRNEFGX-XAMSXPGMSA-N cathelicidin Chemical class C([C@@H](C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CO)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H]([C@@H](C)CC)C(=O)NCC(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](CC=1C=CC=CC=1)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](C(C)C)C(=O)N[C@@H](CCC(N)=O)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CC(O)=O)C(=O)N[C@@H](CC=1C=CC=CC=1)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H](CC(N)=O)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](C(C)C)C(=O)N1[C@@H](CCC1)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H]([C@@H](C)O)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](CO)C(O)=O)NC(=O)[C@H](CC=1C=CC=CC=1)NC(=O)[C@H](CC(O)=O)NC(=O)CNC(=O)[C@H](CC(C)C)NC(=O)[C@@H](N)CC(C)C)C1=CC=CC=C1 POIUWJQBRNEFGX-XAMSXPGMSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
Landscapes
- Instruments For Viewing The Inside Of Hollow Bodies (AREA)
Description
【考案の詳細な説明】
［技術分野］
この考案は内視鏡内に配置された光学繊維束を
保護する保護チユーブに関する。[Detailed Description of the Invention] [Technical Field] This invention relates to a protective tube that protects an optical fiber bundle placed within an endoscope.
［従来技術］
内視鏡の内部には一般に観察用、照明用等の光
学繊維束が配置されている。内視鏡で体腔内を診
断する際、内視鏡挿入部の先端側湾曲部を繰り返
し湾曲させ、体腔内の形状に沿つて挿入し、被検
部を観察する。この湾曲の繰り返しにより内部の
光学繊維束が他の内蔵物により除々に圧迫され折
損してしまう不具合があつた。[Prior Art] An optical fiber bundle for observation, illumination, etc. is generally arranged inside an endoscope. When diagnosing the inside of a body cavity with an endoscope, the distal end side curved part of the endoscope insertion section is repeatedly bent, the endoscope is inserted along the shape of the body cavity, and the subject part is observed. Due to this repeated bending, the internal optical fiber bundle was gradually compressed by other built-in objects and broke.
そこで、実開昭54−18094号公報に記載の様に、
外装チユーブで被覆された光学繊維束を保護チユ
ーブで被嵌したものが考案されている。しかしな
がら、湾曲部が大きく湾曲すると、湾曲部内の保
護チユーブが他の内蔵物と接触し圧迫を受け、部
分的につぶされてしまう。従つて光学繊維束の動
きが規制され、その結果光学繊維が折損してしま
う。又、保護チユーブの肉厚を増やせば保護チユ
ーブの伸縮性柔軟性を著しく低下させてしまうと
共に挿入部が大径化してしまう等の欠点があつ
た。 Therefore, as described in Utility Model Application Publication No. 54-18094,
An optical fiber bundle covered with an exterior tube is fitted with a protective tube. However, when the curved section is greatly curved, the protective tube within the curved section comes into contact with other built-in objects and is subjected to pressure, resulting in partial collapse. Therefore, the movement of the optical fiber bundle is restricted, resulting in breakage of the optical fibers. Furthermore, if the thickness of the protective tube is increased, the elasticity and flexibility of the protective tube will be significantly reduced and the diameter of the insertion portion will become larger.
［目的］
この考案は上記不具合を解消するためになされ
たもので、その目的とする所は挿入部の外形を拡
大させることなく確実に光学繊維束の折損を防止
できる内視鏡を提供することにある。[Purpose] This invention was made to solve the above-mentioned problems, and the purpose is to provide an endoscope that can reliably prevent breakage of the optical fiber bundle without enlarging the external shape of the insertion section. It is in.
［概要］
外装チユーブで被覆された光学繊維束に被嵌さ
れた保護チユーブの外周に軟質材料からなる規制
部材を設けて、保護チユーブが径方向に変形しな
いようにした内視鏡である。[Summary] This is an endoscope in which a regulating member made of a soft material is provided on the outer periphery of a protective tube fitted into an optical fiber bundle covered with an exterior tube to prevent the protective tube from deforming in the radial direction.
［実施例］
以下、この考案の一実施例を図面に基づいて説
明する。第１図は内視鏡全体を示しており、内視
鏡１は体腔内等に挿入される挿入部２と、挿入部
２の基端に接続する操作部３と、操作部３から延
出するライトガイドケーブル４と、このライトガ
イドケーブル４の先端に設けられ図示しない光源
装置に接続されるコネクタ５からなる。挿入部２
はその先端から先端構成部６、湾曲部７、可撓部
８からなる。操作部３の側部には外部に突出して
送気送水切換機構９、吸引切換機構１０、処置具
挿入口１１が設けられている。また操作部３の後
部には接眼部１２が設けられている。[Example] Hereinafter, an example of this invention will be described based on the drawings. FIG. 1 shows the entire endoscope, and the endoscope 1 includes an insertion section 2 inserted into a body cavity, an operation section 3 connected to the proximal end of the insertion section 2, and an operation section 3 extending from the operation section 3. The light guide cable 4 includes a light guide cable 4, and a connector 5 provided at the tip of the light guide cable 4 and connected to a light source device (not shown). Insertion part 2
consists of a tip forming portion 6, a curved portion 7, and a flexible portion 8 from its tip. An air/water supply switching mechanism 9, a suction switching mechanism 10, and a treatment tool insertion port 11 are provided on the side of the operating section 3 and project outward. Further, an eyepiece section 12 is provided at the rear of the operation section 3.
第２図は内視鏡１の先端部を示しており、先端
構成部６はその軸方向に適宜数の貫通穴があけら
れている。この貫通穴は、対物光学系１３、送気
送水ノズル１４および吸引チヤンネル（処置具挿
通チヤンネルを兼ねる）用の開口穴１５等が設け
られている。対物光学系１３の前部側光学系は先
端構成部６の先端面部６ｂに取り付けられてお
り、後部側光学系は、取付筒１６を介して先端構
成部６に固定されている。対物光学系１３の後部
に対向してイメージガイドフアイバ１７が口金１
８を介して取付筒１６に固定されている。この口
金１８は筒状物であり大外形部１９と小外形部２
０とからなり、小外形部２０の中間部には周回突
起２１が設けられている。そして、大外形部１９
が上記取付筒１６に固定されている。イメージガ
イドフアイバ１７は口金１８の一方の端面から挿
入部２、操作部３を通つて接眼部１２まで挿通さ
れる。イメージガイドフアイバ１７の外部には略
全長にわたつて外装チユーブ２２が被覆されてい
る。この外装チユーブ２２はその一端が小外形部
２０の周回突起２１より後部側２０ａの外周に糸
で巻かれて固定されている。さらに外装チユーブ
２２は、保護チユーブ２３によりおおわれてい
る。この保護チユーブ２３はその一端が小外形部
２０の周回突起２１より前部側２０ｂの外周に糸
で巻かれて固定されている。なお、保護チユーブ
２３の他端は自由端となつており、その長さは少
なくとも湾曲部７の長さ以上である。保護チユー
ブ２３は多孔性微細構造を有する高分子材料（た
とえばポリテトラフルオロエチレン等のフツ素樹
脂）からなり、滑性があり、かつ伸縮性、柔軟性
を有している。この保護チユーブ２３の外周には
補強リング２４が複数個装着されている。この補
強リング２４は、延伸発泡性四弗化エチレン樹脂
からなる。上記先端構成部６の外周には湾曲ゴム
２５の一端が糸により固定される。なお湾曲部７
の湾曲ゴム２５内には点線で示す湾曲コマ７ａが
設けられている。先端構成部６の送気送水ノズル
１４の嵌挿された貫通穴の後端には送気送水用取
付筒２６が一部を内挿固定され、取り付けられて
いる。送気送水用取付筒２６には送気送水チユー
ブ２７が糸で巻きつけられ取付けられている。送
気送水チユーブ２７は送気送水切換機構９を介し
てコネクタ５に設けられた口金（図示しない）に
連通し、この口金（図示しない）を通して送気ポ
ンプ（図示しない）や送水タンク（図示しない）
に接続される。上記先端構成部６の吸引用の開口
穴１５後部には吸引用取付筒２８が一部を内挿固
定され取りつけられている。吸引用取付筒２８に
は吸引チヤンネル２９が糸で巻きつけられ取り付
けられている。吸引チヤンネル２９は、操作部３
内で二又に分かれ、一方は鉗子口１１に連通し、
他方は吸引切換機構１０を介してコネクタ５に設
けられた口金（図示しない）に連通し、この口金
（図示しない）を通して所定の吸引ポンプ（図示
しない）に接続される。また、挿入部２内には図
示しないライトガイドフアイバが挿通されてい
る。 FIG. 2 shows the distal end of the endoscope 1, and the distal end component 6 has an appropriate number of through holes in its axial direction. This through hole is provided with an objective optical system 13, an air/water supply nozzle 14, an opening hole 15 for a suction channel (also serving as a treatment instrument insertion channel), and the like. The front optical system of the objective optical system 13 is attached to the distal end surface portion 6b of the distal end component 6, and the rear optical system is fixed to the distal end component 6 via a mounting tube 16. An image guide fiber 17 is connected to the base 1 facing the rear of the objective optical system 13.
It is fixed to the mounting tube 16 via 8. This cap 18 is a cylindrical object, and has a large external portion 19 and a small external portion 2.
0, and a circumferential protrusion 21 is provided at the intermediate portion of the small external portion 20. And large external portion 19
is fixed to the mounting tube 16. The image guide fiber 17 is inserted from one end surface of the base 18 through the insertion section 2 and the operating section 3 to the eyepiece section 12. The exterior of the image guide fiber 17 is covered with an exterior tube 22 over substantially its entire length. One end of the exterior tube 22 is fixed by being wound around the outer periphery of the small external portion 20 on the rear side 20a of the circumferential projection 21 with a thread. Furthermore, the exterior tube 22 is covered with a protective tube 23. One end of the protective tube 23 is fixed by being wound around the outer periphery of the small external portion 20 on the front side 20b of the circumferential projection 21 with a thread. The other end of the protective tube 23 is a free end, and its length is at least longer than the length of the curved portion 7. The protective tube 23 is made of a polymeric material (for example, a fluororesin such as polytetrafluoroethylene) having a porous microstructure, and is slippery, stretchable, and flexible. A plurality of reinforcing rings 24 are attached to the outer periphery of the protective tube 23. This reinforcing ring 24 is made of stretchable and expandable tetrafluoroethylene resin. One end of the curved rubber 25 is fixed to the outer periphery of the tip forming portion 6 with a thread. Note that the curved portion 7
A curved piece 7a shown by a dotted line is provided in the curved rubber 25. An air/water supply mounting tube 26 is partially inserted and fixed at the rear end of the through hole in which the air/water supply nozzle 14 of the tip component 6 is fitted. An air/water tube 27 is attached to the air/water tube 26 by being wound with a thread. The air/water supply tube 27 communicates with a cap (not shown) provided on the connector 5 via the air/water switching mechanism 9, and is connected to an air pump (not shown) or a water tank (not shown) through the cap (not shown). )
connected to. A suction mounting cylinder 28 is attached to the rear of the suction opening hole 15 of the distal end component 6, with a portion thereof being inserted and fixed. A suction channel 29 is attached to the suction attachment tube 28 by being wound with a thread. The suction channel 29 is connected to the operating section 3
It is divided into two parts inside, one side is connected to the forceps opening 11,
The other end communicates with a cap (not shown) provided on the connector 5 via the suction switching mechanism 10, and is connected to a predetermined suction pump (not shown) through the cap (not shown). Further, a light guide fiber (not shown) is inserted into the insertion portion 2.
第３図は内視鏡１の挿入部２が湾曲したときの
イメージガイドフアイバ１７、保護チユーブ２３
および補強リング２４等の状態を示しいる。 Figure 3 shows the image guide fiber 17 and protective tube 23 when the insertion section 2 of the endoscope 1 is curved.
and the state of the reinforcing ring 24 and the like.
次にこの考案の作用について説明する。第２図
に示す様に挿入部２内にはイメージガイドフアイ
バ１７と共に送気送水チユーブ２７、吸引チヤン
ネル２９、ライトガイドフアイバ（図示しない）
等が内挿されている。このため挿入部２が湾曲す
ると保護チユーブ２３、送気送水チユーブ２７、
吸引チヤンネル２９、ライトガイドフアイバ（図
示しない）等を各々屈曲し、相互に接触する。従
つて、保護チユーブ２３は他のチユーブ等から圧
迫を受け、径方向に変形させられる力を受ける。
ところが保護チユーブ２３の外周には補強リング
２４が装着されている為、一部肉厚が厚くなつて
おり、保護チユーブ２３の径方向の断面形状変化
を規制することができる。 Next, the effect of this invention will be explained. As shown in FIG. 2, the insertion section 2 includes an image guide fiber 17, an air/water supply tube 27, a suction channel 29, and a light guide fiber (not shown).
etc. are interpolated. Therefore, when the insertion part 2 is curved, the protection tube 23, the air/water supply tube 27,
The suction channel 29, light guide fiber (not shown), etc. are bent and brought into contact with each other. Therefore, the protective tube 23 receives pressure from other tubes, etc., and receives a force that deforms it in the radial direction.
However, since the reinforcing ring 24 is attached to the outer periphery of the protective tube 23, the wall thickness is partially increased, and changes in the cross-sectional shape of the protective tube 23 in the radial direction can be restricted.
なお、この考案は上記一実施例に限定されるも
のではない。即ち、この考案をライトガイドフア
イバに適用してもよい。また補強リングの代わり
に、ラセン状のものを保護チユーブ外周に挿着し
てもよい。さらに、補強リングは保護チユーブの
適宜箇所に適宜設ければよい。 Note that this invention is not limited to the above embodiment. That is, this invention may be applied to light guide fibers. Moreover, instead of the reinforcing ring, a helical ring may be inserted around the outer periphery of the protective tube. Further, the reinforcing ring may be provided at an appropriate location on the protective tube.
［効果］
以上説明したように、この考案によれば、外装
チユーブで被覆された光学繊維束に被嵌された保
護チユーブの外周に軟質材料からなる規制部材を
設けて、保護チユーブが径方向に変形しないよう
にしたもので、挿入部を大径化することなく光学
繊維束の折れを確実に防止できる。[Effect] As explained above, according to this invention, a regulating member made of a soft material is provided on the outer periphery of the protective tube that is fitted into the optical fiber bundle covered with the outer tube, so that the protective tube is prevented from moving in the radial direction. Since it is designed to prevent deformation, it is possible to reliably prevent the optical fiber bundle from breaking without increasing the diameter of the insertion section.
第１図ないし第３図はこの考案の一実施例を示
しており、第１図は内視鏡の全体図、第２図は内
視鏡先端付近の断面図、第３図は挿入部が湾曲し
た際のイメージガイドフアイバ、補護チユーブ等
の状態を示した図である。
１……内視鏡、１７……イメージガイドフアイ
バ、２２……外装チユーブ、２３……保護チユー
ブ、２４……補強リング。
Figures 1 to 3 show an embodiment of this invention, with Figure 1 being an overall view of the endoscope, Figure 2 being a cross-sectional view of the vicinity of the tip of the endoscope, and Figure 3 showing the insertion section. FIG. 7 is a diagram showing the state of the image guide fiber, the support tube, etc. when curved. DESCRIPTION OF SYMBOLS 1... Endoscope, 17... Image guide fiber, 22... Exterior tube, 23... Protection tube, 24... Reinforcement ring.
Claims (1)
た光学繊維束を保護チユーブで被嵌した内視鏡に
おいて、上記保護チユーブを延伸発泡性四弗化エ
チレン樹脂で構成すると共に、上記保護チユーブ
外周に上記保護チユーブの径方向の変形を規制す
る延伸発泡性四弗化エチレン樹脂からなる規制部
材を設けたことを特徴とする内視鏡。 In an endoscope in which an optical fiber bundle placed in the endoscope and covered with an exterior tube is fitted with a protective tube, the protective tube is made of expanded polytetrafluoroethylene resin, and the outer periphery of the protective tube is An endoscope comprising: a regulating member made of expandable tetrafluoroethylene resin for regulating radial deformation of the protective tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10951083U JPS6017701U (en) | 1983-07-14 | 1983-07-14 | Endoscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10951083U JPS6017701U (en) | 1983-07-14 | 1983-07-14 | Endoscope |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6017701U JPS6017701U (en) | 1985-02-06 |
| JPH0411681Y2 true JPH0411681Y2 (en) | 1992-03-24 |
Family
ID=30255070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10951083U Granted JPS6017701U (en) | 1983-07-14 | 1983-07-14 | Endoscope |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6017701U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2594811Y2 (en) * | 1991-09-03 | 1999-05-10 | 旭光学工業株式会社 | Endoscope optical fiber bundle |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS487827U (en) * | 1971-06-07 | 1973-01-29 | ||
| JPS5636302B2 (en) * | 1973-11-27 | 1981-08-22 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6041205Y2 (en) * | 1979-08-30 | 1985-12-14 | オリンパス光学工業株式会社 | Endoscope |
-
1983
- 1983-07-14 JP JP10951083U patent/JPS6017701U/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS487827U (en) * | 1971-06-07 | 1973-01-29 | ||
| JPS5636302B2 (en) * | 1973-11-27 | 1981-08-22 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6017701U (en) | 1985-02-06 |
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