JPS60207111A - Light source device for endoscope - Google Patents
Light source device for endoscopeInfo
- Publication number
- JPS60207111A JPS60207111A JP59064498A JP6449884A JPS60207111A JP S60207111 A JPS60207111 A JP S60207111A JP 59064498 A JP59064498 A JP 59064498A JP 6449884 A JP6449884 A JP 6449884A JP S60207111 A JPS60207111 A JP S60207111A
- Authority
- JP
- Japan
- Prior art keywords
- light guide
- end surface
- light source
- air
- incident end
- 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.)
- Granted
Links
- 239000006059 cover glass Substances 0.000 claims description 5
- 238000005286 illumination Methods 0.000 claims description 4
- 238000005507 spraying Methods 0.000 claims 1
- 239000000428 dust Substances 0.000 abstract description 8
- 238000001816 cooling Methods 0.000 abstract description 7
- 238000007664 blowing Methods 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract 1
- 238000003780 insertion Methods 0.000 description 5
- 230000037431 insertion Effects 0.000 description 5
- 239000007921 spray Substances 0.000 description 3
- 239000013307 optical fiber Substances 0.000 description 2
- 239000004927 clay Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/0006—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 with means to keep optical surfaces clean, e.g. by preventing or removing dirt, stains, contamination, condensation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/12—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with cooling or rinsing arrangements
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Heart & Thoracic Surgery (AREA)
- Pathology (AREA)
- Radiology & Medical Imaging (AREA)
- Biophysics (AREA)
- General Physics & Mathematics (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Instruments For Viewing The Inside Of Hollow Bodies (AREA)
- Endoscopes (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の技術分野〕
本発明は装着した内視鏡のライトガイドの入射端に冷却
用空気を吹き付ける形式の内視鏡用光源装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a light source device for an endoscope that blows cooling air onto the incident end of a light guide of an endoscope attached thereto.
一般に、内視鏡用光源装置に使用する光源ランプは高輝
度のランプであるため、この光を受けるライトガイドの
入射端面は高温になりやすい。そして、このライトガイ
ドには普通光学繊維束を用いているため、その入射端は
熱的３こ損ｆｌ（端面焼け）を受けやすい。Generally, the light source lamp used in the light source device for an endoscope is a high-intensity lamp, so the entrance end surface of the light guide that receives this light tends to become hot. Since this light guide normally uses an optical fiber bundle, its input end is susceptible to thermal three-core loss fl (end face burn).
この端面焼けを防止するため、従来ではそのライトガイ
ドの入射端面に空気を吹き付けて空冷するノズルを設置
する方式のもの（特開昭５７−８１３２３号公報）が提
案されている。In order to prevent this end face burning, a method has been proposed (Japanese Patent Laid-Open No. 57-81323) in which a nozzle is installed to cool the light guide by blowing air onto the incident end face.
しかしながら、上記ノズルおよび入射端の周辺は外部に
開放されているため、ノズルから噴出した空気流が周辺
の外気を巻き込んでしまい。However, since the area around the nozzle and the entrance end is open to the outside, the airflow ejected from the nozzle will involve surrounding outside air.
イドの入射端面に付着して汚れてしまうということがあ
った。また、ライトガイドの入射端部に付着した物が集
束光で加熱されて燃えてしまい、その入射端部を損傷す
ることがあった。In some cases, it adhered to the incident end face of the id and became dirty. Further, objects attached to the incident end of the light guide may be heated and burned by the focused light, thereby damaging the incident end.
本発明はノズルによりライトガイドの入射端部に冷却用
空気を吹き付けるにあたり１周辺外部のほこりやちりな
どを巻き込んでその入射端部に付着しないようにした内
視鏡用光源装置を提供することにある。An object of the present invention is to provide a light source device for an endoscope, in which when cooling air is blown onto the incident end of a light guide by a nozzle, dust and dirt from outside the surrounding area are drawn in and do not adhere to the incident end. be.
本発明はライトガイドの入射端部を覆うキャップ部材を
設け、このキャップ部材の内部においてノズルから上記
入射端面に冷却用空気を吹き付けることにより、周辺外
部のほこりやちりなどの巻き込みを防止して入射端面に
付着しないようにしたものである。The present invention provides a cap member that covers the incident end of the light guide, and blows cooling air from a nozzle inside the cap member to the incident end surface, thereby preventing dust and dirt from surrounding the outside from being drawn into the light guide. This prevents it from adhering to the end face.
以下１本発明の一実施例を第１図にもとづいて説明する
。An embodiment of the present invention will be described below with reference to FIG.
第１図は内視鏡用光源装置におけるソケット部１を示す
。このソケット部ｌのソケット部材２は光源装置の前面
パネル３に配設され、取付は板４に支持固定されている
。そして、このソケット部材２には内視鏡のライトガイ
ドプラグ５が着脱自在に装着するようになっている。上
記ライトガイドプラグ５にはライトガイド管６が突設さ
れており、このライトガイド管６内には光学繊維束から
なるライトガイド７が挿入配設されている。また、ライ
トガイド７の入射端面８はライトガイド管６の先端にお
いて外部に露出している。FIG. 1 shows a socket portion 1 in an endoscope light source device. The socket member 2 of the socket portion 1 is disposed on the front panel 3 of the light source device, and is supported and fixed to a plate 4 for mounting. A light guide plug 5 of an endoscope is detachably attached to this socket member 2. A light guide tube 6 is protruded from the light guide plug 5, and a light guide 7 made of an optical fiber bundle is inserted into the light guide tube 6. Further, the entrance end surface 8 of the light guide 7 is exposed to the outside at the tip of the light guide tube 6.
上記ソケット部材２および取付は板４にはライトガイド
管６を挿通する挿通孔９が形成されている。そして、ソ
ケット部材２にライトガイドプラグ５を装着したときに
はその挿通孔９をライトガイド管６が貫通してライトガ
イド管６の先端部は第１図で示すように取付は板４より
内方へ突き出す。An insertion hole 9 through which the light guide tube 6 is inserted is formed in the socket member 2 and the mounting plate 4. When the light guide plug 5 is attached to the socket member 2, the light guide tube 6 passes through the insertion hole 9, and the tip of the light guide tube 6 is installed inward from the plate 4 as shown in FIG. Stick out.
このように突き出すライトガイド管６の先端部は後述す
るキャップ部材１０によって覆われる。キャップ部材１
ｏは略筒状に形成したその本体部１１を取付は板４に対
して気密的に取着してなり、さらにその中空部１２の先
端は透光性のカバーガラスＩ３によって閉塞されている
。The tip of the light guide tube 6 that protrudes in this way is covered by a cap member 10, which will be described later. Cap member 1
o has a main body 11 formed in a substantially cylindrical shape and is airtightly attached to the plate 4, and the tip of the hollow portion 12 is closed with a translucent cover glass I3.
そして、このカバーガラス１３を通じて光源のランプＩ
４からの照明光を導入し、上記ライトガイド７の入射端
面８に照射するようになっている。なお、光源のランプ
Ｉ４の光は図示しない集光レンズによって集束されてか
らカバーガラス１３を通じて入射するようになっている
。Then, through this cover glass 13, the light source lamp I
The illumination light from 4 is introduced and is irradiated onto the incident end surface 8 of the light guide 7. Note that the light from the lamp I4 as a light source is made to enter through the cover glass 13 after being focused by a condensing lens (not shown).
また、中空部Ｉ２の基端側内周壁にはＯリング１５が付
設されていて、この０１Ｊング１５は挿入されたライト
ガイド管６の外周壁に密着してソケット部材２側への空
気もれを阻止するようになっている。Further, an O-ring 15 is attached to the inner circumferential wall on the proximal side of the hollow portion I2, and this O-ring 15 closely contacts the outer circumferential wall of the inserted light guide tube 6 to prevent air leakage toward the socket member 2 side. It is designed to prevent
上記キャップ部材１ｏの土壁部には上記入射端部８に向
けて開口する小孔からなるノズル１６が形成されている
。そして、このノズル１６はキャップ部材１０に取付は
固定した口金１７とこの口金１７に接続した送気チュー
ブＩ８を通じて送気ポンプ１９の吐出側に接続され、そ
の送気ポンプ１９からの圧縮空気を上記入射端面８に噴
き付けるようになっている。さらに、上記キャップ部材
１０の下側壁部には上記ノズル１６により噴き付けられ
た気体を外部に流出させるための排出路を形成する排気
孔２０が形成されている。また、この排気孔２０はキャ
ップ部材１０に取着した口金２１およびこの口金２１に
接続した排気チューブ２２を介して前記送気ポンプＩ９
の吸入側に接続されている。A nozzle 16 consisting of a small hole opening toward the incident end portion 8 is formed in the clay wall portion of the cap member 1o. The nozzle 16 is connected to the discharge side of the air pump 19 through a base 17 fixedly attached to the cap member 10 and an air supply tube I8 connected to the base 17, and the compressed air from the air pump 19 is transferred to the It is designed to spray onto the entrance end face 8. Furthermore, an exhaust hole 20 is formed in the lower wall of the cap member 10 to form an exhaust path for allowing the gas sprayed by the nozzle 16 to flow out. Further, this exhaust hole 20 is connected to the air supply pump I9 via a base 21 attached to the cap member 10 and an exhaust tube 22 connected to this base 21.
connected to the suction side of the
次に、上記装置の動作を説明する。まず、ソケット部ｌ
にライトガイドプラグ５を装着し、送気ポンプ１９を作
動させると、圧縮空気が送気チューブ１８１口金２１を
通じてノズル１６に導びかれる。そして、ノズル１６か
らは圧縮空気がライトガイド７の入射端面８に向けて噴
き付けられ、その入射端面８を空冷する。したがって、
光源のランプＩ４からの照明光が集束されてその入射端
面８に照射されることにより加熱されても冷却させられ
、焼損が防止させられる。一方、キャップ部材ＩＯの中
空部Ｉ２に噴き出した空気は排気孔２０、口金２１およ
び排気チューブ２２を通じてその中空部１２から排出さ
れて送気ポンプ１９に戻される。そして。Next, the operation of the above device will be explained. First, socket part l
When the light guide plug 5 is attached to the air supply pump 19 and the air supply pump 19 is operated, compressed air is guided to the nozzle 16 through the air supply tube 181 and the base 21. Then, compressed air is sprayed from the nozzle 16 toward the entrance end surface 8 of the light guide 7, thereby air cooling the entrance end surface 8. therefore,
Illumination light from the lamp I4 as a light source is focused and irradiated onto the incident end face 8, so that even if it is heated, it is cooled and burnout is prevented. On the other hand, the air blown into the hollow part I2 of the cap member IO is discharged from the hollow part 12 through the exhaust hole 20, the base 21 and the exhaust tube 22, and is returned to the air pump 19. and.
再び送気ポンプ１９により圧縮されてノズルＩ６側へ送
られる。つまり、同じ空気が循環する。したがって、外
からほこりやちりなどが入り込まないので、通常はその
途中にフィルタなどを設ける必要がない。The air is again compressed by the air supply pump 19 and sent to the nozzle I6 side. In other words, the same air circulates. Therefore, since dirt and dust do not enter from the outside, there is usually no need to provide a filter or the like in the middle.
噴き付けるノズル１６を配設したから外部のほこりやち
りなどを巻き込んで入射端面８に付着させることがない
。Since the spray nozzle 16 is provided, there is no possibility that external dust or dirt will be drawn in and deposited on the incident end surface 8.
なお、上記実施例では０リング１５を設けてソケット部
材２側への空気漏れを防止するようにしたが、ある程度
の漏れがあってもよいことからそのＱ ＩＪソング５を
設けないでもよい。一方、上記０リング１５を設ける代
りに第２図で示すようにライトガイド管６の先端外周部
とこれを嵌合させるキャップ部材ＩＯの内周部とをテー
パ状に形成して密に嵌合させて密閉性をだすものであっ
てもよい。In the above embodiment, the O-ring 15 is provided to prevent air leakage to the socket member 2 side, but since there may be some leakage, the QIJ song 5 may not be provided. On the other hand, instead of providing the O-ring 15, as shown in FIG. 2, the outer periphery of the tip of the light guide tube 6 and the inner periphery of the cap member IO into which it is fitted are formed into a tapered shape so that they fit tightly together. It may also be one that provides airtightness.
また、上記実施例では送気ポンプＩ９に空気を戻す排気
チューブ２２を設けたが、これを設けずに上記排気孔２
ｏを通じてその才ま外部に排気してもよく、さらにはこ
の排気孔２０も設けずに、ライトガイド管６と挿通孔９
との間のすき間を通じて排気するようζこしてもよい。Further, in the above embodiment, the exhaust tube 22 for returning air to the air pump I9 was provided, but the exhaust tube 22 was not provided and the exhaust hole 22 was provided.
The light guide tube 6 and the insertion hole 9 may be exhausted to the outside through the light guide tube 6 and the insertion hole 9 without providing the exhaust hole 20.
It is also possible to exhaust air through the gap between the
なお、冷却用空気を送気ポンプＩ９に戻さない場合には
、送気ポンプＩ９の吸込み側などにフィルタを設けてほ
こりなどを除去するとよい。Note that if the cooling air is not returned to the air pump I9, a filter may be provided on the suction side of the air pump I9 to remove dust and the like.
また、上記実施例ではキャップ部材ＩＯに直接ノズル孔
を形成したが１本発明のノズ、しはそのキャップ部材１
０とは別にそのキャップ部材ＩＱ内に配設するものでも
よい。Further, in the above embodiment, the nozzle hole was formed directly in the cap member IO, but the nozzle of the present invention, and the cap member 1
0 may be disposed within the cap member IQ.
以上説明したように本発明はライトガイドの入射端面部
付近およびその入射端面に冷却用空気を噴き付けるノズ
ルをキャップ部材で覆うようにしたからその噴付は気流
によって外部のほこりやちりなどが巻き込まれて上記入
射端面に付着しその入射端面を汚すことがない。したが
って、入射端面の光学的状態を良好に保つことができる
。また、集束照明光によって入射端面に付着した物が燃
えてダメージを与えるといった不都合が回避される。As explained above, in the present invention, the nozzle that sprays cooling air near the incident end surface of the light guide and onto the incident end surface is covered with a cap member, so that the airflow causes external dust and dirt to be drawn in. The incident end face will not be contaminated by the incident end face. Therefore, the optical condition of the incident end face can be maintained in good condition. Moreover, the inconvenience that objects adhering to the incident end face are burned and damaged by the focused illumination light can be avoided.
第１図は本発明の一実施例を示すソケット部の側断面図
、第２図は本発明の他の実施例を示すソケット部の側断
面図である。
Ｉ・・・ソケット部、２・・・ソケット部材、５・・・
ライトガイドプラグ、６・・・ライトガイド管、２・・
・ライトガイド、８・・・入射端面、９・・・挿通孔。
ＩＯ・・・キャップ部材、１２・・・中空部、１３・・
・カバーガラス、１４・・・ランプ、１６・・・ノズル
、１８・・・送気チューブ、１９・・・送気ポンプ、２
０・・・排気孔、２２・・・排気チューブ。FIG. 1 is a side sectional view of a socket portion showing one embodiment of the present invention, and FIG. 2 is a side sectional view of a socket portion showing another embodiment of the present invention. I...Socket part, 2...Socket member, 5...
Light guide plug, 6...Light guide tube, 2...
- Light guide, 8...Incidence end surface, 9...Insertion hole. IO...Cap member, 12...Hollow part, 13...
・Cover glass, 14... Lamp, 16... Nozzle, 18... Air supply tube, 19... Air supply pump, 2
0...Exhaust hole, 22...Exhaust tube.
Claims (1)
このソケット部に上記ライトガイドプラグを接続した際
、そのライトガイドプラグにおけるライトガイドの入射
端面に照明光を集束して照射する光源と、上記ライトガ
イドプラグの入射端面側部分を覆うキャップ部拐と、こ
のキャップ部材の内部において上記入射端面に向けて設
けられその入射端面に圧縮した気体を噴き付けるノズル
と、このノズルにより噴き付けられた気体が外部に流出
する排出路と、上記キャップ部材に設けられ上記ライト
ガイドの入射端面と光源ランプとの間に位置する透光性
カバーガラスとを具備することを特徴とする内視鏡用光
源装置。A socket part for connecting the light guide plug of the endoscope,
When the light guide plug is connected to this socket part, a light source that focuses and irradiates illumination light onto the incident end surface of the light guide in the light guide plug, and a cap part that covers the incident end surface side of the light guide plug. , a nozzle provided inside the cap member toward the incident end surface and spraying compressed gas onto the incident end surface; a discharge passage through which the gas sprayed by the nozzle flows out to the outside; and a discharge path provided in the cap member. A light source device for an endoscope, comprising: a light-transmitting cover glass located between the incident end surface of the light guide and the light source lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59064498A JPS60207111A (en) | 1984-03-31 | 1984-03-31 | Light source device for endoscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59064498A JPS60207111A (en) | 1984-03-31 | 1984-03-31 | Light source device for endoscope |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60207111A true JPS60207111A (en) | 1985-10-18 |
| JPH0464043B2 JPH0464043B2 (en) | 1992-10-13 |
Family
ID=13259924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59064498A Granted JPS60207111A (en) | 1984-03-31 | 1984-03-31 | Light source device for endoscope |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60207111A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01186908A (en) * | 1987-11-17 | 1989-07-26 | Fiberstars Inc | Coolable light irradiation apparatus and method |
| US5469841A (en) * | 1992-10-29 | 1995-11-28 | Olympus Optical Co., Ltd. | Endoscope apparatus provided with liquid removing mechanism for the electric connector |
| US5810620A (en) * | 1992-10-29 | 1998-09-22 | Olympus Optical Co., Ltd. | Electric connector provided with a shielding part for electrical contacts at the distal end of the plug |
-
1984
- 1984-03-31 JP JP59064498A patent/JPS60207111A/en active Granted
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01186908A (en) * | 1987-11-17 | 1989-07-26 | Fiberstars Inc | Coolable light irradiation apparatus and method |
| US5469841A (en) * | 1992-10-29 | 1995-11-28 | Olympus Optical Co., Ltd. | Endoscope apparatus provided with liquid removing mechanism for the electric connector |
| US5810620A (en) * | 1992-10-29 | 1998-09-22 | Olympus Optical Co., Ltd. | Electric connector provided with a shielding part for electrical contacts at the distal end of the plug |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0464043B2 (en) | 1992-10-13 |
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