JPH062123B2 - Endoscope - Google Patents
EndoscopeInfo
- Publication number
- JPH062123B2 JPH062123B2 JP62082623A JP8262387A JPH062123B2 JP H062123 B2 JPH062123 B2 JP H062123B2 JP 62082623 A JP62082623 A JP 62082623A JP 8262387 A JP8262387 A JP 8262387A JP H062123 B2 JPH062123 B2 JP H062123B2
- Authority
- JP
- Japan
- Prior art keywords
- tip
- ring
- endoscope
- section
- metal
- 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
- 239000002184 metal Substances 0.000 claims description 13
- 238000005452 bending Methods 0.000 claims description 7
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 239000011810 insulating material Substances 0.000 claims description 2
- 230000037431 insertion Effects 0.000 description 11
- 238000003780 insertion Methods 0.000 description 11
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 239000010839 body fluid Substances 0.000 description 3
- 239000012777 electrically insulating material Substances 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 210000001124 body fluid Anatomy 0.000 description 2
- 238000010292 electrical insulation Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 208000002197 Ehlers-Danlos syndrome Diseases 0.000 description 1
- 210000000476 body water Anatomy 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 210000002429 large intestine Anatomy 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
Landscapes
- Instruments For Viewing The Inside Of Hollow Bodies (AREA)
- Endoscopes (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は挿入部の先端にフードが装着される内視鏡に関
する。TECHNICAL FIELD The present invention relates to an endoscope in which a hood is attached to the tip of an insertion portion.
一般に直視型の内視鏡を大腸等に挿入する場合は、ポリ
ーブを容易に回収できるように挿入部の先端にフードを
装着する場合が多い。しかしながら、挿入部の先端に金
属製の先端部本体を有する内視鏡においては、高周波処
置時の感電事故等を防止するために先端部本体の表面全
体を電気絶縁カバーで覆っているため、フードを装着す
ることができなかった。そこで、上記不具合を解決する
ために先端部本体の外周にねじ部を設け、このねじ部に
電気絶縁材料からなるフードをねじ込み装着するように
したものが実開昭５９−９６００１号公報で提案されて
いる。Generally, when inserting a direct-viewing endoscope into the large intestine or the like, a hood is often attached to the tip of the insertion portion so that the probe can be easily collected. However, in an endoscope having a metal tip body at the tip of the insertion section, the entire surface of the tip body is covered with an electrically insulating cover in order to prevent electric shock accidents during high-frequency treatment. Could not be fitted. Therefore, in order to solve the above-mentioned problem, a screw is provided on the outer periphery of the tip end main body, and a hood made of an electrically insulating material is screwed into the screw to attach the screw. ing.
しかしながら、上記のような内視鏡においては、外皮の
先端部分を先端部本体の後端部に糸にて緊縛し、その緊
縛部分を接着剤で固めてあるため、接着剤の表面とフー
ドの内面との間に隙間が生じ、この隙間に水や体液等が
侵入して先端部本体のねじ部と電気的に導通してしま
い、高周波処置時に高周波電流が先端部本体のねじ部を
通して外部へ漏洩するという欠点を有していた。However, in the endoscope as described above, the distal end portion of the outer skin is tightly bound to the rear end portion of the tip end portion body with a thread, and the tightly bound portion is fixed with an adhesive, so that the surface of the adhesive and the hood A gap is created between the inner surface and water, body fluid, etc., will enter this gap and become electrically conductive with the threaded portion of the tip body, and during high-frequency treatment, high-frequency current will flow through the threaded portion of the tip body to the outside. It had the drawback of leaking.
本発明は上述した問題点を解決するためになされたもの
で、その目的とするところは、高周波処置時に高周波電
流が先端部本体を通通して外部へ漏洩するようなことが
なく、高周波処置時の電気的安全性を確保することがで
きる内視鏡を提供することにある。The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to prevent high-frequency current from leaking to the outside through the tip body during high-frequency treatment. An object of the present invention is to provide an endoscope that can ensure the electrical safety of the endoscope.
上記問題点を解決するために本発明は、操作部と、この
操作部の前端に設けられた可撓管部と、この可撓管部の
前端に連設された湾曲部と、この湾曲部の前端に設けら
れた金属製の先端部本体とを具備してなる内視鏡におい
て、前記先端部本体の外周面に絶縁材料からなる電気絶
縁リングを固設し、この電気絶縁リングの後端部に前記
可撓管部および前記湾曲部の表面を被覆する電気絶縁性
の外皮チューブを連設するとともに、前記電気絶縁リン
グの外周面に金属リングを固設し、この金属リングの外
周面にフード取付用の雄ねじを設けたことを特徴とする
ものである。In order to solve the above problems, the present invention provides an operating portion, a flexible tube portion provided at a front end of the operating portion, a bending portion continuously provided at a front end of the flexible tube portion, and the bending portion. In an endoscope comprising a metal tip body provided at the front end of the electric insulation ring, an electric insulation ring made of an insulating material is fixed to the outer peripheral surface of the tip body, and the rear end of the electric insulation ring is fixed. The electrically insulating outer jacket tube that covers the surfaces of the flexible tube portion and the curved portion is continuously provided to the portion, and a metal ring is fixedly provided on the outer peripheral surface of the electrical insulating ring, and the outer peripheral surface of the metal ring is provided. It is characterized in that a male screw for attaching the hood is provided.
本発明においては先端部本体の表面が外部に露出しなく
なるので、高周波電流の漏洩を防止できる。In the present invention, since the surface of the tip body is not exposed to the outside, it is possible to prevent leakage of high frequency current.
以下、本発明を図面に示す実施例に基づいて説明する。 Hereinafter, the present invention will be described based on embodiments shown in the drawings.
第１図ないし第３図は本発明の一実施例を示し、図中１
は内視鏡の挿入部である。この挿入部１は操作部２側よ
り可撓管部３，湾曲部４および先端部５を連結してな
り、この外周には電気絶縁材料からなる弾性外皮８が被
覆されている。そして、操作部２には湾曲操作ノブ６お
よび図示しない光源装置に接続されるユニバーサルコー
ド７等が設けられている。1 to 3 show an embodiment of the present invention, in which 1
Is the insertion part of the endoscope. The insertion section 1 is formed by connecting the flexible tube section 3, the bending section 4 and the tip section 5 from the operation section 2 side, and the outer periphery of the insertion section 1 is covered with an elastic skin 8 made of an electrically insulating material. The operation section 2 is provided with a bending operation knob 6 and a universal cord 7 connected to a light source device (not shown).
また、上記挿入部１の先端には第２図に示すように金属
製の先端部本体９が取着固定されている。この先端部本
体９の後端部には上記外皮８の先端部分が糸１０にて緊
縛され、その緊縛部分を接着剤１１で固めて先端部本体
９から抜けるのを防止している。また、先端部本体９の
先端面を含む先端部分には電気絶縁カバー１２が接着固
定され、先端部本体９の先端部分は電気絶縁カバー１２
により、先端部本体９の後端部は外皮８によりそれぞれ
電気的に絶縁されている。Further, as shown in FIG. 2, a metal tip body 9 is attached and fixed to the tip of the insertion portion 1. The tip portion of the outer cover 8 is tightly bound to the rear end portion of the tip portion main body 9 with a thread 10, and the tightly bound portion is fixed with an adhesive 11 to prevent the tip portion main body 9 from coming off. An electric insulating cover 12 is adhered and fixed to the tip portion including the tip surface of the tip body 9, and the tip portion of the tip body 9 is electrically insulated.
Thus, the rear end of the front end body 9 is electrically insulated by the outer cover 8.
上記カバー１２および外皮８で覆われていない先端部本
体９の中間部外周には電気絶縁リング１３が接着固定さ
れている。この電気絶縁リング１３の外周には電気絶縁
材料からなるフード１６をねじ込み装着するためのねじ
部１５を有する金属リング１４が接着固定され、上記フ
ード１６の内面中間部にはねじ部１５に螺合するめねじ
部１７が形成されている。なお、電気絶縁リング１３の
内面及び外面には第３図に示すように先端部本体９の外
面および金属リング１４の内面に形成された凹部に嵌合
する回り止め用の凸部１８，１９が形成されている。An electric insulating ring 13 is adhesively fixed to the outer periphery of the middle portion of the tip body 9 which is not covered with the cover 12 and the outer cover 8. A metal ring 14 having a screw portion 15 for screwing and mounting a hood 16 made of an electrically insulating material is adhered and fixed to the outer periphery of the electric insulating ring 13, and the screw portion 15 is screwed to the intermediate portion of the inner surface of the hood 16. A female thread portion 17 is formed. As shown in FIG. 3, rotation preventing protrusions 18 and 19 that fit into recesses formed on the outer surface of the tip body 9 and the inner surface of the metal ring 14 are provided on the inner and outer surfaces of the electrical insulating ring 13. Has been formed.
また、上記挿入部１の先端面には鉗子チャンネル口２
０，観察窓２１および照明窓等が設けられ、観察窓２１
は電気絶縁カバー１２の孔２２に取付けた筒状の枠２３
に窓レンズ２４，マスク２５，集光レンズ２６を組み込
んで構成されている。また、観察窓２１の内側には複数
の集光レンズ２７，２８，２９からなる対物光学系３０
が設けられ、この対物光学系３０により視野内の観察像
をイメージガイドファイバ３１の先端面に結像するよう
になっている。なお、電気絶縁リング１３の前端は電気
絶縁カバー１２の後端に当接しており、電気絶縁リング
１３の後端部は外皮８の前端部によって被覆されてい
る。In addition, a forceps channel port 2 is provided on the distal end surface of the insertion portion 1.
0, an observation window 21 and an illumination window are provided, and the observation window 21
Is a cylindrical frame 23 attached to the hole 22 of the electrical insulating cover 12.
The window lens 24, the mask 25, and the condensing lens 26 are incorporated. An objective optical system 30 including a plurality of condenser lenses 27, 28, 29 is provided inside the observation window 21.
The objective optical system 30 forms an observation image in the field of view on the tip surface of the image guide fiber 31. The front end of the electric insulating ring 13 is in contact with the rear end of the electric insulating cover 12, and the rear end of the electric insulating ring 13 is covered by the front end of the outer cover 8.
上記の構成によると、先端部本体９は電気絶縁カバー１
２、電気絶縁リング１３および外皮８によって覆われ、
先端部本体９の表面が露出しなくなるので、高周波処置
時にフード１６と外皮８との間に水や体液が入り込んで
も高周波電流が先端部本体９を通じて外部に漏洩するよ
うなことがなくなり、高周波電流の漏洩を防止できる。
なお、上記実施例では電気絶縁リング１３および金属リ
ング１４を接着剤で固定したが、第４図に示すようにピ
ン３２で固定するようにしてもよい。According to the above configuration, the tip end main body 9 has the electrical insulation cover 1
2. Covered by electrical insulation ring 13 and outer skin 8,
Since the surface of the tip body 9 is not exposed, the high frequency current will not leak to the outside through the tip body 9 even if water or body fluid enters between the hood 16 and the outer skin 8 during the high frequency treatment. Can be prevented from leaking.
Although the electrical insulating ring 13 and the metal ring 14 are fixed by the adhesive in the above embodiment, they may be fixed by the pin 32 as shown in FIG.
以上説明したように本発明によれば、先端部本体の表面
が外部に露出しなくなるので、フードと外皮との間に水
や体液が入り込んでも高周波電流が先端部本体を通じて
外部に漏洩するのを防止することができる。As described above, according to the present invention, since the surface of the tip body is not exposed to the outside, even if water or body fluid enters between the hood and the outer skin, the high frequency current is prevented from leaking to the outside through the tip body. Can be prevented.
第１図ないし第３図は本発明の一実施例を示し、第１図
は内視鏡の全体図、第２図は挿入部の先端部分を示す断
面図、第３図は第２図のIII−III断面図、第４図は本発
明の他の実施例を示す挿入部先端部の断面図である。 １…挿入部、２…操作部、３…可撓管部、４…湾曲部、
５…先端部、８…外皮、９…先端部本体、１２…カバ
ー、１３…電気絶縁リング、１４…金属リング、１５…
ねじ部、１６…フード。1 to 3 show an embodiment of the present invention, FIG. 1 is an overall view of an endoscope, FIG. 2 is a sectional view showing a distal end portion of an insertion portion, and FIG. III-III sectional view, FIG. 4 is a sectional view of the distal end portion of the insertion portion showing another embodiment of the present invention. 1 ... insertion part, 2 ... operation part, 3 ... flexible tube part, 4 ... bending part,
5 ... Tip part, 8 ... Skin, 9 ... Tip part body, 12 ... Cover, 13 ... Electrical insulating ring, 14 ... Metal ring, 15 ...
Screw part, 16 ... Hood.
Claims (1)
可撓管部と、この可撓管部の前端に連設された湾曲部
と、この湾曲部の前端に設けられた金属製の先端部本体
とを具備してなる内視鏡において、前記先端部本体の外
周面に絶縁材料からなる電気絶縁リングを固設し、この
電気絶縁リングの後端部に前記可撓管部および前記湾曲
部の表面を被覆する電気絶縁性の外皮チューブを連設す
るとともに、前記電気絶縁リングの外周面に金属リング
を固設し、この金属リングの外周面にフード取付用の雄
ねじを設けたことを特徴とする内視鏡。1. An operating section, a flexible tube section provided at a front end of the operating section, a bending section continuously provided at a front end of the flexible tube section, and a metal provided at a front end of the bending section. In an endoscope including a distal end body made of metal, an electrical insulating ring made of an insulating material is fixedly provided on an outer peripheral surface of the distal end body, and the flexible tube portion is provided at a rear end portion of the electrical insulating ring. And an electrically insulating outer tube that covers the surface of the curved portion are continuously provided, and a metal ring is fixedly provided on the outer peripheral surface of the electrically insulating ring, and a male screw for attaching a hood is provided on the outer peripheral surface of the metal ring. An endoscope characterized by that.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62082623A JPH062123B2 (en) | 1987-04-03 | 1987-04-03 | Endoscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62082623A JPH062123B2 (en) | 1987-04-03 | 1987-04-03 | Endoscope |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63249535A JPS63249535A (en) | 1988-10-17 |
| JPH062123B2 true JPH062123B2 (en) | 1994-01-12 |
Family
ID=13779579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62082623A Expired - Lifetime JPH062123B2 (en) | 1987-04-03 | 1987-04-03 | Endoscope |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH062123B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0641524Y2 (en) * | 1988-04-28 | 1994-11-02 | オリンパス光学工業株式会社 | Endoscope |
| JP2007159854A (en) * | 2005-12-14 | 2007-06-28 | Pentax Corp | Insertion section and endoscope |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5928420Y2 (en) * | 1976-07-16 | 1984-08-16 | オリンパス光学工業株式会社 | Pressing and fixing device for endoscope film cassette |
| JPS5996001U (en) * | 1982-12-18 | 1984-06-29 | オリンパス光学工業株式会社 | Endoscope |
-
1987
- 1987-04-03 JP JP62082623A patent/JPH062123B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63249535A (en) | 1988-10-17 |
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