JPH1026709A - Device for laterally irradiating with laser beam - Google Patents

Device for laterally irradiating with laser beam

Info

Publication number
JPH1026709A
JPH1026709A JP8182347A JP18234796A JPH1026709A JP H1026709 A JPH1026709 A JP H1026709A JP 8182347 A JP8182347 A JP 8182347A JP 18234796 A JP18234796 A JP 18234796A JP H1026709 A JPH1026709 A JP H1026709A
Authority
JP
Japan
Prior art keywords
laser
optical fiber
sleeve
lesion
laser beam
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.)
Pending
Application number
JP8182347A
Other languages
Japanese (ja)
Inventor
Harufumi Kato
治文 加藤
Takeshi Udagawa
毅 宇田川
Katsushi Inoue
克司 井上
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
IHI Corp
Japan Science and Technology Agency
Original Assignee
IHI Corp
Research Development Corp of Japan
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by IHI Corp, Research Development Corp of Japan filed Critical IHI Corp
Priority to JP8182347A priority Critical patent/JPH1026709A/en
Publication of JPH1026709A publication Critical patent/JPH1026709A/en
Pending legal-status Critical Current

Links

Abstract

PROBLEM TO BE SOLVED: To make it possible to irradiate the specific point of a lesion, etc., positioned on the side of an optical chip on which a reflection surface for totally reflecting incident light in a specified direction in formed, with a laser beam, by providing a device irradiating with laser beam with the optical chip descried above. SOLUTION: An insertion part 1 is inserted into the body and a front end member 7 is disposed to face a lesion. The colored part 15 of a sleeve 16 is then observed and the direction of the colored part 15 is visually checked. Whether the laser beam emitted from the optical chip 14 is made incident on the lesion or not is thereby decided. If the direction of the colored part 15 is in the state of not making the laser beam emitted from the optical chip 14 incident on the lesion, a rotating position adjusting member 24 existing on the outside of the insertion part 1 of an optical fiber 13 is properly turned by the fingertips, by which the sleeve 16 is turned together with the optical fiber 13. The direction of the colored part 15 is adjusted to the position where the laser beam from the optical chip 14 is made incident on the lesion. The laser beam is reflected by the reflection surface 19 and is diffused by the recessed surface 20 so as to be cast to the lesion.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明はレーザ側方照射器に
関するものである。
The present invention relates to a laser side irradiator.

【0002】[0002]

【従来の技術】近年、生体組織の病巣部あるいは受傷部
にレーザ光を照射し、生体組織の凝固、止血、蒸散(切
除、切開)を図ることが実施されている。
2. Description of the Related Art In recent years, it has been practiced to irradiate a laser beam to a lesion or a wounded part of a living tissue to coagulate, stop bleeding, and evaporate (excise or cut) the living tissue.

【0003】また、癌組織に対して親和性を有する光感
受性物質を病巣部に吸収させたうえ、所定波長のレーザ
光を病巣部に照射した際に、該病巣部から蛍光が発せら
れるか否によって癌組織の有無を判定する癌診断や、前
記の光感受性物質を病巣部に吸収させたうえ、所定波長
のレーザ光を病巣部に照射することにより、該病巣部に
おける癌組織を破壊する癌治療についての調査研究が行
われている。
[0003] In addition, after a lesion is absorbed with a photosensitizer having an affinity for a cancer tissue and a laser beam having a predetermined wavelength is irradiated on the lesion, it is determined whether the lesion emits fluorescence. Cancer diagnosis to determine the presence or absence of cancerous tissue, or by absorbing the photosensitizer to the lesion, and then irradiating the lesion with laser light of a predetermined wavelength to destroy cancerous tissue in the lesion. Research on treatment is underway.

【0004】このようなレーザ光を適用した診断あるい
は治療を体内の病巣部に対して実施する場合には、内視
鏡装置にレーザ光照射用の光ファイバを追加して、レー
ザ発振器より出射されるレーザ光を体内へ導くことにな
る。
[0004] When a diagnosis or treatment using such a laser beam is performed on a lesion in the body, an optical fiber for irradiating the laser beam is added to the endoscope apparatus and the laser beam is emitted from a laser oscillator. Laser light into the body.

【0005】一方、光ファイバに入射するレーザ光を、
光ファイバの径方向外方へ出射させる手段として、実開
平3−20303号公報に記載されたレーザ側方分散端
子がある。
On the other hand, a laser beam incident on an optical fiber is
As means for emitting light radially outward of the optical fiber, there is a laser lateral dispersion terminal described in Japanese Utility Model Laid-Open No. 3-20303.

【0006】このレーザ側方分散端子は、図7に示すよ
うに、レーザプローブ先端の端子31の前面にレーザ反
射用の円錐状凹部32に設けたもので、端子31の後端
から端子31に入射するレーザ光(入射光)33を円錐
状凹部32によって反射し、端子31の側方の照射対象
へレーザ光(出射光)34を照射するように構成されて
いる。
As shown in FIG. 7, the laser side dispersion terminal is provided in a conical concave portion 32 for laser reflection on the front surface of the terminal 31 at the tip of the laser probe. The laser light (incident light) 33 that is incident is reflected by the conical recess 32, and the irradiation target on the side of the terminal 31 is irradiated with the laser light (emitted light) 34.

【0007】[0007]

【発明が解決しようとする課題】ところが、図7に示す
レーザ側方分散端子を、先に述べたようなレーザ光によ
る診断あるいは治療において、食道、胃、十二指腸のよ
うな消化器管の内壁へレーザ光を照射する手段に適用し
たとすると、端子31の周方向全周から側方へレーザ光
34が出射されることになり、また、出射されるレーザ
光34のビームプロファイルも不均一になるため、病巣
部に入射するレーザ光34の光強度が不足する傾向を呈
し、病巣部に対する診断や治療を行いにくいことがあ
る。
However, in the diagnosis or treatment using the laser beam as described above, the laser side dispersion terminal shown in FIG. 7 is applied to the inner wall of the digestive tract such as the esophagus, stomach and duodenum. If applied to the means for irradiating laser light, the laser light 34 is emitted laterally from the entire circumference of the terminal 31 and the beam profile of the emitted laser light 34 is also non-uniform. Therefore, the light intensity of the laser beam 34 incident on the lesion tends to be insufficient, and it may be difficult to diagnose or treat the lesion.

【0008】本発明は上述した実情に鑑みてなしたもの
で、側方に位置する病巣部等の特定箇所に対してレーザ
光を照射し得るレーザ側方照射器を提供することを目的
としている。
The present invention has been made in view of the above circumstances, and has as its object to provide a laser side irradiator capable of irradiating a laser beam to a specific portion such as a lesion located laterally. .

【0009】[0009]

【課題を解決するための手段】上記目的を達成するた
め、本発明の請求項1に記載のレーザ側方照射器では、
屈曲性を有する外筒と、周方向へ回転し得るように外筒
に挿通された光ファイバと、基端面が光ファイバの先端
面に対峙するように外筒の先端側に配置され且つ先端部
分に光ファイバから入射するレーザ光を側方特定方向へ
向って全反射させ得る反射面が形成された光チップと、
該光チップを光ファイバの先端部分に拘束し外筒の先端
部に内装されたスリーブと、該スリーブに設けた目印
と、該目印の位置を検知する手段とを備えている。
In order to achieve the above object, a laser side irradiator according to claim 1 of the present invention comprises:
An outer cylinder having flexibility, an optical fiber inserted into the outer cylinder so as to be able to rotate in the circumferential direction, and a distal end portion arranged and disposed on the distal end side of the outer cylinder such that the base end surface faces the distal end surface of the optical fiber. An optical chip formed with a reflecting surface capable of totally reflecting laser light incident from an optical fiber in a specific side direction,
The optical chip is provided with a sleeve which is constrained to the tip of an optical fiber and is provided at the tip of the outer cylinder, a mark provided on the sleeve, and means for detecting the position of the mark.

【0010】本発明の請求項2に記載のレーザ側方照射
器では、本発明の請求項1に記載のレーザ照射器の構成
に加えて、光ファイバの基端寄り部分を周方向への変位
が許容され得るように外筒の外部に露出させ、光ファイ
バの外筒から外部へ露出した部分の所定箇所に回転位置
調整部材を外嵌固着している。
In the laser side irradiator according to the second aspect of the present invention, in addition to the configuration of the laser irradiator according to the first aspect of the present invention, a portion near the base end of the optical fiber is displaced in the circumferential direction. The optical fiber is exposed to the outside of the outer tube so as to be allowed, and the rotation position adjusting member is externally fixed to a predetermined portion of the portion of the optical fiber exposed to the outside from the outer tube.

【0011】本発明の請求項3に記載のレーザ側方照射
器では、本発明の請求項1或いは請求項2に記載のレー
ザ側方照射器における目印の向きを検知する手段とし
て、外筒の基端側に接眼部を設けている。
In the laser side irradiator according to the third aspect of the present invention, the means for detecting the direction of the mark in the laser side irradiator according to the first or second aspect of the present invention comprises an outer cylinder. An eyepiece is provided on the proximal end side.

【0012】本発明の請求項4に記載のレーザ側方照射
器では、本発明の請求項1或いは請求項2に記載のレー
ザ側方照射器における目印の向きを検知する手段を、外
筒の基端側に設けた接眼部と、該接眼部に接続可能な撮
影装置とによって構成している。
In the laser side irradiator according to claim 4 of the present invention, the means for detecting the direction of the mark in the laser side irradiator according to claim 1 or 2 of the present invention is provided by an outer cylinder. It consists of an eyepiece provided on the base end side and an imaging device connectable to the eyepiece.

【0013】本発明の請求項5に記載のレーザ側方照射
器では、本発明の請求項3或いは請求項4に記載のレー
ザ側方照射器におけるスリーブに設けた目印を、着色部
としている。
In the laser side irradiator according to the fifth aspect of the present invention, the mark provided on the sleeve of the laser side irradiator according to the third or fourth aspect of the present invention is a colored portion.

【0014】本発明の請求項6に記載のレーザ側方照射
器では、本発明の請求項3或いは請求項4に記載のレー
ザ側方照射器におけるスリーブに設けた目印を、凹陥部
としている。
In the laser side irradiator according to claim 6 of the present invention, the mark provided on the sleeve in the laser side irradiator according to claim 3 or 4 of the present invention is a concave portion.

【0015】本発明の請求項7に記載のレーザ側方照射
器では、本発明の請求項3或いは請求項4に記載のレー
ザ側方照射器におけるスリーブに設けた目印を、凸起部
としている。
In the laser side irradiator according to claim 7 of the present invention, the mark provided on the sleeve in the laser side irradiator according to claim 3 or 4 of the present invention is a projection. .

【0016】本発明の請求項8に記載のレーザ側方照射
器では、本発明の請求項1から請求項7のいずれかに記
載のレーザ側方照射器における光チップのレーザ光が出
射される部分に、該部分から出射されるレーザ光を均一
に拡散させ得る凹面を形成している。
In the laser side irradiator according to claim 8 of the present invention, the laser light of the optical chip in the laser side irradiator according to any one of claims 1 to 7 of the present invention is emitted. The portion has a concave surface capable of uniformly diffusing the laser light emitted from the portion.

【0017】本発明の請求項1から請求項8に記載のレ
ーザ側方照射器のいずれにおいても、光チップの反射面
により、光チップの側方に位置する病巣部等の特定箇所
に対してレーザ光を照射する。
In any one of the laser side irradiators according to any one of the first to eighth aspects of the present invention, the reflecting surface of the optical chip allows the laser side irradiator to detect a specific portion such as a lesion located on the side of the optical chip. Irradiate laser light.

【0018】また、目印の位置を検知する手段により、
光チップからのレーザ光の出射方向を検知し、更に、光
ファイバを適宜回動させることにより、光チップからの
レーザ光の出射方向の修正を行う。
Further, by means for detecting the position of the mark,
The direction of emission of the laser light from the optical chip is corrected by detecting the direction of emission of the laser light from the optical chip and further rotating the optical fiber appropriately.

【0019】更に、本発明の請求項8に記載のレーザ側
方照射器においては、光チップの凹面により、光チップ
から出射されるレーザ光を均一に拡散する。
Further, in the laser side irradiator according to the present invention, the laser light emitted from the optical chip is uniformly diffused by the concave surface of the optical chip.

【0020】[0020]

【発明の実施の形態】以下、本発明の実施の形態を図面
に基づいて説明する。
Embodiments of the present invention will be described below with reference to the drawings.

【0021】図1から図4は本発明のレーザ側方照射器
の実施の形態の第1の例を組み込んだファイバスコープ
を示すもので、このファイバスコープは、体内に挿入さ
れる挿入部1と、該挿入部1の先端を手動操作によって
適宜湾曲させ得る操作部2と、病巣部の目視観察を行う
ための接眼部3と、前記の挿入部1に対して照明光源、
送気送水装置等を接続するためのコネクタ部4とによっ
て構成されている。
FIGS. 1 to 4 show a fiber scope incorporating a first embodiment of a laser side irradiator according to the present invention. This fiber scope has an insertion portion 1 inserted into a body. An operation unit 2 capable of appropriately bending the distal end of the insertion unit 1 by manual operation, an eyepiece unit 3 for visually observing a lesion, and an illumination light source for the insertion unit 1;
And a connector section 4 for connecting an air / water supply device or the like.

【0022】挿入部1は、コネクタ部4に連なるライト
ガイド9、送気送水管、操作部2に連なる屈曲用芯線、
接眼部3に連なる観察用光ファイバを内装した屈曲性を
有する外筒6と、該外筒6の先端に固着された先端部材
7とを備えており、該先端部材7には、観察用光ファイ
バに対する対物レンズ8、ライトガイド9の先端部分、
送気送水管に対するノズルが取り付けられ、また、開口
11が設けられている。
The insertion portion 1 includes a light guide 9 connected to the connector portion 4, an air / water supply pipe, a bending core wire connected to the operation portion 2,
A flexible outer tube 6 containing an observation optical fiber connected to the eyepiece 3 and a tip member 7 fixed to the tip of the outer tube 6 are provided. The objective lens 8 with respect to the optical fiber, the tip of the light guide 9,
A nozzle for the air / water supply pipe is attached, and an opening 11 is provided.

【0023】上記の開口11は、通常は、接眼部3での
病巣部の観察、接眼部3に接続した撮影装置5での病巣
部の撮影、吸引ポンプによる体液の吸引、あるいは、操
作部2に設けられた挿入口12から外筒6に挿通させた
鉗子を病巣部へ突出させるのに用いられている。
The opening 11 is usually used for observing a lesion at the eyepiece 3, photographing the lesion with the photographing device 5 connected to the eyepiece 3, sucking body fluid by a suction pump, or operating the lesion. The forceps inserted through the outer tube 6 from the insertion port 12 provided in the section 2 is used to project to the lesion.

【0024】更に、ファイバスコープの挿入部1は、レ
ーザ光の導光手段である診断治療用としての光ファイバ
13と、該光ファイバ13から病巣部へレーザ光を出射
させる光チップ14と、該光チップ14と光ファイバ1
3とを相互に拘束し且つ表面に目印としての着色部15
を有するスリーブ16とを有している。
Further, the insertion portion 1 of the fiberscope includes an optical fiber 13 for diagnosis and treatment, which is a light guiding means for the laser light, an optical chip 14 for emitting the laser light from the optical fiber 13 to the lesion, and Optical chip 14 and optical fiber 1
3 and a colored portion 15 as a mark on the surface.
And a sleeve 16 having

【0025】光ファイバ13は、酸化珪素等の光透過性
物質を線状に形成したコア部17の外側部に、高分子ポ
リマ等よりなるクラッド部(図示せず)を介してテフロ
ン等の合成樹脂よりなる外皮部18を被覆させた外径が
1mm程度の屈曲性を有する線条体であり、この光ファ
イバ13の先端部においては外皮部18が撤去されてコ
ア部17が外部に露出している。
The optical fiber 13 is made of a synthetic material such as Teflon through a cladding (not shown) made of a polymer or the like on the outside of a core 17 formed of a light transmitting substance such as silicon oxide in a linear shape. It is a striated body having an outer diameter of about 1 mm and covered with a resin sheath 18 made of resin. At the tip of the optical fiber 13, the sheath 18 is removed to expose the core 17 to the outside. ing.

【0026】上記の光ファイバ13は、先端部分が前記
の先端部材7の内部に位置するように挿入口12から挿
入部1へ挿通されている。
The optical fiber 13 is inserted from the insertion port 12 into the insertion portion 1 such that the distal end portion is located inside the distal end member 7.

【0027】また、光ファイバ13の挿入部1の外部に
位置する部分の外皮部18の所定箇所には、指先で容易
に把持することができる程度の外径を有する短筒状の回
転位置調整部材24が外嵌固着されており、この回転位
置調整部材24を周方向に回動させると、回転位置調整
部材24に連動して光ファイバ13が周方向に回動する
ようになっている。
A predetermined position of the outer skin portion 18 of the portion of the optical fiber 13 located outside the insertion portion 1 has a short cylindrical rotation position adjustment having an outer diameter that can be easily gripped with a fingertip. The member 24 is externally fitted and fixed. When the rotational position adjusting member 24 is rotated in the circumferential direction, the optical fiber 13 rotates in the circumferential direction in conjunction with the rotational position adjusting member 24.

【0028】光チップ14は、酸化珪素等の光透過性物
質よりなる短円柱体の先端部分に、側方から見て短円柱
体の軸線に対して45°の角度をなす平坦な反射面19
を形成して、短円柱体基端面に入射するレーザ光が側方
へ直角に出射されるようにし、また、短円柱体の外側部
のレーザ光が出射される部分に、凹面20を形成して、
この部分から出射されるレーザ光を均一に拡散させるよ
うにしたものである。
The optical chip 14 has a flat reflecting surface 19 formed at an end of a short cylinder made of a light-transmitting substance such as silicon oxide at an angle of 45 ° with respect to the axis of the short cylinder when viewed from the side.
Is formed so that the laser light incident on the base end face of the short cylinder is emitted at a right angle to the side, and a concave surface 20 is formed on a portion of the outside of the short cylinder where the laser light is emitted. hand,
The laser light emitted from this portion is diffused uniformly.

【0029】スリーブ16は、ステンレス鋼等の金属に
よって形成された中空構造体であり、先端から基端側へ
向って延び且つ光チップ14の基端寄り部分が挿入され
るチップ挿入孔21と、該チップ挿入孔21に対して同
軸に位置するように基端から先端側へ向って延び且つ光
ファイバ13の外皮部18の先端部分が挿入される外皮
部挿入孔22と、該外皮部挿入孔22とチップ挿入孔2
1との双方に同軸に連通し且つ光ファイバ13のコア部
17の先端部分が挿入されるコア部挿入孔23とを有し
ている。
The sleeve 16 is a hollow structure formed of a metal such as stainless steel, extends from the distal end toward the proximal end, and has a chip insertion hole 21 into which a portion near the proximal end of the optical chip 14 is inserted. A skin insertion hole 22 extending from the base end toward the distal end so as to be coaxial with the chip insertion hole 21 and into which the distal end portion of the skin 18 of the optical fiber 13 is inserted; 22 and tip insertion hole 2
1 and a core part insertion hole 23 into which the tip of the core part 17 of the optical fiber 13 is inserted coaxially.

【0030】このスリーブ16は、周方向への回動を許
容され得るように、前記の先端部材7の開口11に挿入
されており、スリーブ16のチップ挿入孔21に挿入さ
れた光チップ14の基端面とコア部挿入孔23に挿入さ
れた光ファイバ13のコア部17の先端面とは、オプテ
ィカルコンタクトによって接合されている。
The sleeve 16 is inserted into the opening 11 of the tip member 7 so as to be allowed to rotate in the circumferential direction. The proximal end surface and the distal end surface of the core portion 17 of the optical fiber 13 inserted into the core insertion hole 23 are joined by an optical contact.

【0031】また、チップ挿入孔21に挿入された光チ
ップ14、外皮部挿入孔22に挿入された光ファイバ1
3の外皮部18の先端部分、コア部挿入孔23に挿入さ
れた光ファイバ13のコア部17の先端部分のそれぞれ
は、接着剤及びスリーブ16に対するかしめ加工によっ
て、スリーブ16に拘束されている。
The optical chip 14 inserted into the chip insertion hole 21 and the optical fiber 1
The distal end of the outer sheath 18 and the distal end of the core 17 of the optical fiber 13 inserted into the core insertion hole 23 are restrained by the sleeve 16 by caulking the adhesive and the sleeve 16.

【0032】更に、スリーブ16の外側部基端寄り部分
には、先に述べた接眼部3によって観察、あるいは、撮
影装置5によって撮影され得られるべき目印としての着
色部15が、塗膜によって形成されている。
Further, a colored portion 15 as a mark to be observed by the above-mentioned eyepiece 3 or photographed by the photographing device 5 is provided on the outer base portion of the sleeve 16 near the base end by a coating film. Is formed.

【0033】この着色部15は、スリーブ16の外側部
に一つだけ設けてもよいし、あるいは、それぞれの形状
を識別できるようにしたものをスリーブ16の外側部の
周方向に所定間隔で複数設けるようにしてもよい。
The coloring portion 15 may be provided only one on the outer portion of the sleeve 16, or a plurality of coloring portions 15 each of which can be distinguished from each other at predetermined intervals in the circumferential direction of the outer portion of the sleeve 16. It may be provided.

【0034】以下、図1から図4に示すレーザ側方照射
器を組み込んだファイバスコープの作動を説明する。
Hereinafter, the operation of the fiberscope incorporating the laser side irradiator shown in FIGS. 1 to 4 will be described.

【0035】診断や治療に際して病巣部に対してレーザ
光を照射する際には、ファイバスコープの挿入部1を体
内に挿入して先端部材7を病巣部に対峙させる。
When irradiating the lesion with laser light during diagnosis or treatment, the insertion section 1 of the fiberscope is inserted into the body, and the distal end member 7 is opposed to the lesion.

【0036】次いで、接眼部3によりスリーブ16の着
色部15を観察、あるいは、撮影装置5によりスリーブ
16の着色部15を画像表示装置(図示せず)に表示さ
せ、着色部15の向きを目視確認することにより、光チ
ップ14から出射されるレーザ光が病巣部に入射するか
否かを判定する。
Next, the colored portion 15 of the sleeve 16 is observed with the eyepiece 3, or the colored portion 15 of the sleeve 16 is displayed on the image display device (not shown) by the photographing device 5, and the orientation of the colored portion 15 is changed. By visually confirming, it is determined whether or not the laser light emitted from the optical chip 14 enters the lesion.

【0037】着色部15の向きが、光チップ14から出
射されるレーザ光が病巣部に入射しない状態である場合
には、光ファイバ13の挿入部1の外部に位置している
回転位置調整部材24を、指先によって適宜回動させる
ことにより、光ファイバ13とともにスリーブ16を回
動させ、光チップ14から出射されるレーザ光が病巣部
に入射する位置に着色部15の向きを調整する。
If the laser beam emitted from the optical chip 14 does not enter the lesion, the rotation position adjusting member located outside the insertion portion 1 of the optical fiber 13 is oriented. The sleeve 16 is rotated together with the optical fiber 13 by appropriately rotating the 24 with a fingertip, and the direction of the coloring portion 15 is adjusted to a position where the laser light emitted from the optical chip 14 enters the lesion.

【0038】更に、光ファイバ13の基端面にレーザ発
振器(図示せず)より出射されるレーザ光を入射させる
と、該レーザ光は、光ファイバ13を経て光チップ14
に入射したうえ、該光チップ14の反射面19により反
射し、更に、凹面20により均一に拡散されて、光チッ
プ14の側方に位置する病巣部に照射されることにな
る。
Further, when a laser beam emitted from a laser oscillator (not shown) is incident on the base end face of the optical fiber 13, the laser beam passes through the optical fiber 13 and enters the optical chip 14.
Then, the light is reflected by the reflection surface 19 of the optical chip 14, is further uniformly diffused by the concave surface 20, and is irradiated to a lesion located on the side of the optical chip 14.

【0039】このように、図1から図4に示すレーザ側
方照射器を組み込んだファイバスコープでは、反射面1
9及び凹面20を形成した光チップ14により、該光チ
ップ14の側方に位置する病巣部等の特定箇所に対して
レーザ光をビームプロファイルが均一な状態で照射する
ことができる。
As described above, in the fiber scope incorporating the laser side irradiator shown in FIGS.
The optical chip 14 having the concave portion 9 and the concave surface 20 can irradiate a laser beam to a specific portion such as a lesion located on the side of the optical chip 14 with a uniform beam profile.

【0040】また、回転位置調整部材24により、光フ
ァイバ13とともに光チップ14を回動させることがで
き、更に、光チップ14と光ファイバ13とを拘束する
スリーブ16に設けた着色部15の向きを接眼部3、あ
るいは、撮影装置5で検知することができるので、レー
ザ光の出射方向の確認及び修正が容易に行える。
Further, the optical chip 14 can be rotated together with the optical fiber 13 by the rotation position adjusting member 24, and further, the orientation of the coloring portion 15 provided on the sleeve 16 for restraining the optical chip 14 and the optical fiber 13. Can be detected by the eyepiece 3 or the photographing device 5, so that the emission direction of the laser beam can be easily confirmed and corrected.

【0041】図5は本発明のレーザ側方照射器の実施の
形態の第2の例を組み込んだファイバスコープを、ま
た、図6は本発明のレーザ側方照射器の実施の形態の第
3の例を組み込んだファイバスコープを示すもので、図
5及び図6において、図1から図4と同一の符号を付し
た部分は同一物を表している。
FIG. 5 shows a fiber scope incorporating a second embodiment of the laser side irradiator of the present invention, and FIG. 6 shows a third embodiment of the laser side irradiator of the present invention. FIG. 5 and FIG. 6 show the same parts in FIGS. 5 and 6 with the same reference numerals as those in FIGS.

【0042】図5に示すファイバスコープでは、図1に
おける着色部15に替えてスリーブ16の外側部基端寄
り部分に、接眼部3によって観察、あるいは、撮影装置
5によって撮影され得られるべき目印としての凹陥部2
5をスリーブ16に対する切削加工によって形成してい
る。
In the fiberscope shown in FIG. 5, instead of the colored portion 15 in FIG. 1, a mark to be observed by the eyepiece 3 or photographed by the photographing device 5 is provided on the outer base of the sleeve 16 near the base end. Recessed part 2 as
5 is formed by cutting the sleeve 16.

【0043】また、図6に示すファイバスコープでは、
図1における着色部15に替えてスリーブ16の外側部
基端寄り部分に、接眼部3によって観察、あるいは、撮
影装置5によって撮影され得られるべき目印としての凸
起部26をスリーブ16に対して一体的に形成させてい
る。
In the fiberscope shown in FIG.
In place of the colored portion 15 in FIG. 1, a protrusion 26 serving as a mark to be observed by the eyepiece 3 or photographed by the photographing device 5 is provided on the sleeve 16 at a portion near the outer base end of the sleeve 16. And are integrally formed.

【0044】これら凹陥部25、あるいは凸起部26
は、スリーブ16の外側部に一つだけ設けてもよいし、
あるいは、それぞれの形状を識別できるようにしたもの
をスリーブ16の外側部の周方向に所定間隔で複数設け
るようにしてもよい。
The concave portion 25 or the convex portion 26
May be provided only on the outer portion of the sleeve 16,
Alternatively, a plurality of shapes each of which can be identified may be provided at predetermined intervals in the circumferential direction of the outer portion of the sleeve 16.

【0045】なお、本発明のレーザ側方照射器は、上述
した実施の形態のみに限定されるものではなく、本発明
の要旨を逸脱しない範囲内において種々変更を加え得る
ことは勿論である。
Incidentally, the laser side irradiator of the present invention is not limited to the above-described embodiment, and it goes without saying that various changes can be made without departing from the scope of the present invention.

【0046】[0046]

【発明の効果】以上、述べたように、本発明のレーザ側
方照射器によれば、下記のような種々の優れた効果を奏
し得る。
As described above, according to the laser side irradiator of the present invention, the following various excellent effects can be obtained.

【0047】(1)本発明の請求項1から請求項8に記
載のレーザ側方照射器のいずれにおいても、入射する光
を側方特定方向へ向って全反射させ得る反射面が形成さ
れた光チップを備えているので、光チップの側方に位置
する病巣部等の特定箇所に対してレーザ光を照射するこ
とができる。
(1) In any of the laser side irradiators according to the first to eighth aspects of the present invention, a reflecting surface capable of totally reflecting incident light in a specific side direction is formed. Since the optical chip is provided, it is possible to irradiate a specific portion such as a lesion located on the side of the optical chip with laser light.

【0048】(2)本発明の請求項1から請求項8に記
載したレーザ側方照射器のいずれにおいても、目印の位
置を検知する手段により、光チップからのレーザ光の出
射方向を検知することができ、また、光ファイバを適宜
回動させることにより、光チップからのレーザ光の出射
方向の修正を行うことができるので、光チップの側方に
位置する病巣部等の特定箇所に対してレーザ光を確実に
照射することができる。
(2) In any of the laser side irradiators according to the first to eighth aspects of the present invention, the direction of emission of the laser beam from the optical chip is detected by the means for detecting the position of the mark. It is also possible to correct the emission direction of the laser light from the optical chip by rotating the optical fiber appropriately, so that it can be used for a specific portion such as a lesion located on the side of the optical chip. Laser light can be reliably applied.

【0049】(3)本発明の請求項8に記載したレーザ
側方照射器においては、出射されるレーザ光を均一に拡
散させる凹面が形成された光チップを備えているので、
光チップの側方に位置する病巣部等の特定箇所に対して
レーザ光を効果的に照射することができる。
(3) The laser side irradiator according to the eighth aspect of the present invention is provided with an optical chip having a concave surface for uniformly diffusing the emitted laser light.
It is possible to effectively irradiate a laser beam to a specific portion such as a lesion located on the side of the optical chip.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明のレーザ側方照射器の実施の形態の第1
の例を組み込んだファイバスコープを示す要部拡大断面
図である。
FIG. 1 shows a first embodiment of a laser side irradiator according to the present invention.
FIG. 2 is an enlarged sectional view of a main part showing a fiberscope incorporating the example of FIG.

【図2】図1のII−II矢視図である。FIG. 2 is a view taken in the direction of arrows II-II in FIG.

【図3】本発明のレーザ側方照射器の実施の形態の第1
の例を組み込んだファイバスコープを示す斜視図であ
る。
FIG. 3 shows a first embodiment of the laser side irradiator according to the present invention.
FIG. 13 is a perspective view showing a fiberscope incorporating the example of FIG.

【図4】図1から図3における挿入部の先端部を示す斜
視図である。
FIG. 4 is a perspective view showing a distal end portion of an insertion portion in FIGS. 1 to 3;

【図5】本発明のレーザ側方照射器の実施の形態の第2
の例を組み込んだファイバスコープを示す要部拡大断面
図である。
FIG. 5 shows a second embodiment of the laser side irradiator according to the present invention.
FIG. 2 is an enlarged sectional view of a main part showing a fiberscope incorporating the example of FIG.

【図6】本発明のレーザ側方照射器の実施の形態の第3
の例を組み込んだファイバスコープを示す要部拡大断面
図である。
FIG. 6 shows a third embodiment of the laser side irradiator according to the present invention.
FIG. 2 is an enlarged sectional view of a main part showing a fiberscope incorporating the example of FIG.

【図7】実開平3−20303号公報に記載されたレー
ザ側方分散端子を示す断面図である。
FIG. 7 is a sectional view showing a laser lateral dispersion terminal described in Japanese Utility Model Laid-Open No. 3-20303.

【符号の説明】[Explanation of symbols]

3 接眼部(目印を検知する手段) 5 撮影装置(目印を検知する手段) 6 外筒 13 光ファイバ 14 光チップ 15 着色部(目印) 16 スリーブ 19 反斜面 20 凹面 24 回転位置調整部材 25 凹陥部(目印) 26 凸起部(目印) 3 Eyepiece (means for detecting a mark) 5 Imaging device (means for detecting a mark) 6 Outer cylinder 13 Optical fiber 14 Optical chip 15 Coloring part (Mark) 16 Sleeve 19 Anti-slope surface 20 Concave surface 24 Rotational position adjusting member 25 Concave portion Part (mark) 26 Projection (mark)

───────────────────────────────────────────────────── フロントページの続き (72)発明者 宇田川 毅 東京都江東区豊洲三丁目1番15号 石川島 播磨重工業株式会社東二テクニカルセンタ ー内 (72)発明者 井上 克司 東京都江東区豊洲三丁目1番15号 石川島 播磨重工業株式会社東二テクニカルセンタ ー内 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Takeshi Udagawa 3-1-1-15 Toyosu, Koto-ku, Tokyo Ishikawajima-Harima Heavy Industries Co., Ltd. Tojin Technical Center (72) Inventor Katsushi Inoue Toyosu 3-chome, Koto-ku, Tokyo No. 1-15 Ishikawajima Harima Heavy Industries, Ltd. Toji Technical Center

Claims (8)

【特許請求の範囲】[Claims] 【請求項1】 屈曲性を有する外筒と、周方向へ回転し
得るように外筒に挿通された光ファイバと、基端面が光
ファイバの先端面に対峙するように外筒の先端側に配置
され且つ先端部分に光ファイバから入射するレーザ光を
側方特定方向へ向って全反射させ得る反射面が形成され
た光チップと、該光チップを光ファイバの先端部分に拘
束し且つ外筒の先端部に内装されたスリーブと、該スリ
ーブに設けた目印と、該目印の位置を検知する手段とを
備えてなることを特徴とするレーザ側方照射器。
1. An outer tube having flexibility, an optical fiber inserted into the outer tube so as to be rotatable in a circumferential direction, and a distal end side of the outer tube such that a base end surface faces a distal end surface of the optical fiber. An optical chip having a reflection surface formed thereon and capable of totally reflecting laser light incident from the optical fiber at a distal end portion toward a specific side direction; and an outer cylinder for restraining the optical chip at the distal end portion of the optical fiber, and A laser side irradiator, comprising: a sleeve provided at the front end of the laser beam; a mark provided on the sleeve; and means for detecting the position of the mark.
【請求項2】 光ファイバの基端寄り部分を周方向への
変位が許容され得るように外筒の外部に露出させ、光フ
ァイバの外筒から外部へ露出した部分の所定箇所に回転
位置調整部材を外嵌固着した請求項1に記載のレーザ側
方照射器。
2. A portion of the optical fiber near the base end is exposed to the outside of the outer tube so that displacement in the circumferential direction is allowed, and a rotational position is adjusted at a predetermined position of the portion of the optical fiber exposed to the outside from the outer tube. The laser side irradiator according to claim 1, wherein the member is externally fixed.
【請求項3】 目印の向きを検知する手段が、外筒の基
端側に設けた接眼部である請求項1或いは請求項2に記
載のレーザ側方照射器。
3. The laser side illuminator according to claim 1, wherein the means for detecting the direction of the mark is an eyepiece provided on a base end side of the outer cylinder.
【請求項4】 目印の向きを検出する手段が、外筒の基
端側に設けた接眼部と、該接眼部に接続可能な撮影装置
とで構成された請求項1或いは請求項2に記載のレーザ
側方照射器。
4. The apparatus according to claim 1, wherein the means for detecting the direction of the mark comprises an eyepiece provided on the base end side of the outer cylinder, and a photographing device connectable to the eyepiece. 2. The laser side irradiator according to claim 1.
【請求項5】 スリーブに設けた目印が、着色部である
請求項3或いは請求項4に記載のレーザ側方照射器。
5. The laser side irradiator according to claim 3, wherein the mark provided on the sleeve is a colored portion.
【請求項6】 スリーブに設けた目印が、凹陥部である
請求項3或いは請求項4に記載のレーザ側方照射器。
6. The laser side irradiator according to claim 3, wherein the mark provided on the sleeve is a concave portion.
【請求項7】 スリーブに設けた目印が、凸起部である
請求項3或いは請求項4に記載のレーザ側方照射器。
7. The laser side irradiator according to claim 3, wherein the mark provided on the sleeve is a protrusion.
【請求項8】 光チップのレーザ光が出射される部分
に、該部分から出射されるレーザ光を均一に拡散させる
得る凹面を形成した請求項1から請求項7のいずれかに
記載のレーザ側方照射器。
8. The laser side according to claim 1, wherein a concave surface for uniformly diffusing the laser light emitted from the portion is formed in a portion of the optical chip from which the laser light is emitted. Irradiator.
JP8182347A 1996-07-11 1996-07-11 Device for laterally irradiating with laser beam Pending JPH1026709A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8182347A JPH1026709A (en) 1996-07-11 1996-07-11 Device for laterally irradiating with laser beam

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8182347A JPH1026709A (en) 1996-07-11 1996-07-11 Device for laterally irradiating with laser beam

Publications (1)

Publication Number Publication Date
JPH1026709A true JPH1026709A (en) 1998-01-27

Family

ID=16116727

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8182347A Pending JPH1026709A (en) 1996-07-11 1996-07-11 Device for laterally irradiating with laser beam

Country Status (1)

Country Link
JP (1) JPH1026709A (en)

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