JPH0530406Y2 - - Google Patents
Info
- Publication number
- JPH0530406Y2 JPH0530406Y2 JP1988052688U JP5268888U JPH0530406Y2 JP H0530406 Y2 JPH0530406 Y2 JP H0530406Y2 JP 1988052688 U JP1988052688 U JP 1988052688U JP 5268888 U JP5268888 U JP 5268888U JP H0530406 Y2 JPH0530406 Y2 JP H0530406Y2
- Authority
- JP
- Japan
- Prior art keywords
- eyeball
- probe tube
- small diameter
- curvature
- tip
- 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
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- Endoscopes (AREA)
- Eye Examination Apparatus (AREA)
Description
【考案の詳細な説明】 〔産業上の利用分野〕 本考案は眼科用フアイバスコープに関する。[Detailed explanation of the idea] [Industrial application field] The present invention relates to an ophthalmological fiberscope.
従来、眼科に於て、眼球内の観察は瞳孔を通し
て行うか、又は手術にて眼球を切開して行われて
いた。
Conventionally, in ophthalmology, the inside of the eyeball has been observed through the pupil or by surgically incising the eyeball.
従来の眼球内部の観察方法では、手術前に確実
に行うことは至難であつた。
With conventional methods of observing the inside of the eyeball, it has been extremely difficult to reliably observe the inside of the eyeball before surgery.
本考案は、このような問題を解決して、切開手
術なしに、予め眼球内を確実に観察・診断するこ
とを可能とし、さらに、手術時に確実に患部を観
察しつつ行うことを可能とする眼科用フアイバス
コープの提供を目的とする。 This invention solves these problems and makes it possible to reliably observe and diagnose the inside of the eyeball in advance without incisional surgery, and also makes it possible to reliably observe the affected area during surgery. The purpose is to provide fiberscopes for ophthalmology.
上記目的を達成するために、本考案の眼科用フ
アイバスコープは、片手で握るグリツプ部を備
え、該グリツプ部の先端から突出状に眼球挿入用
細径プローブ管を突設し、かつ、該細径プローブ
管の曲率半径を３mm〜10mm、方向変換角度を60°
〜120°、弯曲開始点から最先端部までの長さ寸法
を５mm〜10mmとした弯曲アール状に形成した。
In order to achieve the above object, the ophthalmological fiberscope of the present invention is provided with a grip part that can be held with one hand, and a small diameter probe tube for insertion into the eyeball is provided protrudingly from the tip of the grip part, and The radius of curvature of the probe tube is 3 mm to 10 mm, and the direction change angle is 60°.
It was formed into a curved radius shape with an angle of ~120° and a length from the starting point of the curve to the tip of the curve of 5 mm to 10 mm.
上述の如く構成すれば、片手でグリツプ部を握
り、細径プローブ管を眼球に（白眼部から）挿入
して、眼球内を直接に観察・診断できる。この細
径プローブ管は弯曲アール状であるから、眼球に
挿入しやすいと共に、網膜の手前側−即ち水晶体
の周縁近傍−を含む眼球内全体にわたつて、観察
可能となる。
With the above configuration, the inside of the eyeball can be directly observed and diagnosed by grasping the grip portion with one hand and inserting the thin probe tube into the eyeball (from the white part of the eye). Since this small-diameter probe tube has a curved radius, it can be easily inserted into the eyeball, and the entire inside of the eyeball, including the front side of the retina, that is, the vicinity of the periphery of the crystalline lens, can be observed.
以下、図示の実施例を詳説すると、第１図は眼
科用フアイバスコープのほぼ全体を示しており、
このフアイバスコープ１は、片手で握るグリツプ
部２を備え（第５図参照）、該グリツプ部２の先
端から突出状として細径プローブ管３が固着され
ている。
The illustrated embodiment will be explained in detail below. FIG. 1 shows almost the entire ophthalmological fiberscope.
This fiberscope 1 includes a grip part 2 that can be held with one hand (see FIG. 5), and a small diameter probe tube 3 is fixedly protruding from the tip of the grip part 2.
第１図、第２図、第５図及び第６図に於て、こ
の細径プローブ管３は、眼球Ａへその白眼部Ｂに
（手術にて開設した小孔を通して）、挿入される眼
球挿入用であつて、基端４の近傍に短い長さＬの
ストレート部６を形成すると共に、そこから先端
側を弯曲アール状に形成する。つまり弯曲アール
部５をストレート部６の先端に連続して形成す
る。そして、（第２図に示すように、）細径プロー
ブ管３の該弯曲アール部５の曲率半径Ｒは、３mm
〜10mmに設定し、かつ、基端４の軸心線ａと先端
７の軸心線ｂとがなす角度−これを本考案では方
向変換角度θと呼ぶ−は60°〜120°に設定し、か
つ、弯曲開始点Ｃから最先端部８までの長さ寸法
を５mm〜10mmに設定することにより、後述の第６
図のように、眼球Ａ内部の全域を観察可能とな
る。しかも、該プローブ管３の外径寸法ｄは、１
mm以下に設定し、特に0.5mm〜0.8mmとするのが好
ましい。 In FIGS. 1, 2, 5, and 6, this small diameter probe tube 3 is inserted into the white part B of the eyeball A (through a small hole made in surgery). For insertion into the eyeball, a straight part 6 with a short length L is formed near the base end 4, and the distal end thereof is formed into a curved radius shape. That is, the curved radius portion 5 is formed continuously at the tip of the straight portion 6. The radius of curvature R of the curved radius portion 5 of the small diameter probe tube 3 (as shown in FIG. 2) is 3 mm.
~10 mm, and the angle formed by the axial center line a of the proximal end 4 and the axial center line b of the distal end 7 - which is referred to as the direction change angle θ in this invention - is set to 60° to 120°. , and by setting the length from the curve starting point C to the leading edge 8 to 5 mm to 10 mm, the sixth
As shown in the figure, the entire area inside the eyeball A can be observed. Moreover, the outer diameter dimension d of the probe tube 3 is 1
It is preferably set to 0.5 mm to 0.8 mm, particularly 0.5 mm to 0.8 mm.
第２図と第３図と第４図に示す如く、最先端部
８には対物レンズ９が設けられると共にこれにイ
メージガイド１０の先端が接続される。１１はラ
イトガイドである。細径プローブ管３は、ステン
レス鋼等の金属、又は、その他の硬質材から成
り、可撓性を有する。この細径プローブ管３内
に、上記イメージガイド１０とライトガイド１１
が挿入されている。イメージガイド１０は、コア
とクラツドから成る多数の画素を有するガラス部
１０ａと、これを被覆する被覆層１２と、から構
成され、ロツドレンズから成る対物レンズ９が接
着剤等にて接続される。また、ライトガイドは、
コアとクラツドからなる多数の光フアイバ素線か
ら成り、第４図に示すように、細径プローブ管３
の内面と、イメージガイド１０との空間に、挿入
されている。そして、対物レンズ９、イメージガ
イド１０の先端部、ライトガイド１１の先端部
は、細径プローブ管３の先端７の内面に接着剤等
で固定されている。 As shown in FIGS. 2, 3, and 4, an objective lens 9 is provided at the distal end 8, and the distal end of the image guide 10 is connected to this. 11 is a light guide. The small diameter probe tube 3 is made of metal such as stainless steel or other hard material, and has flexibility. The image guide 10 and light guide 11 are placed inside this small diameter probe tube 3.
is inserted. The image guide 10 is composed of a glass section 10a having a large number of pixels consisting of a core and a cladding, and a coating layer 12 covering this, to which an objective lens 9 consisting of a rod lens is connected with an adhesive or the like. In addition, the light guide
It consists of a large number of optical fibers consisting of a core and a cladding, and as shown in Figure 4, a small diameter probe tube 3.
is inserted into the space between the inner surface of the image guide 10 and the image guide 10. The objective lens 9, the tip of the image guide 10, and the tip of the light guide 11 are fixed to the inner surface of the tip 7 of the small diameter probe tube 3 with adhesive or the like.
また、第１図と第５図に示すように、グリツプ
部２の後端に可撓管１３が接続され、該可撓管１
３内にイメージガイド１０とライトガイド１１は
挿通される。しかも、この可撓管１３は連結具１
４を介して分岐管１５，１６に接続され、夫々の
先端には、（第１図のように）イメージガイドプ
ラグ１７及びライトガイドプラグ１８が固着され
ていて、（第５図のように）一方の分岐管１５は
接眼部１９に、他方の分岐管１６は光源２０に、
夫々接続され、さらに、接眼部１９はテレビカメ
ラ２１に接続される。 Further, as shown in FIGS. 1 and 5, a flexible tube 13 is connected to the rear end of the grip portion 2, and the flexible tube 13 is connected to the rear end of the grip portion 2.
The image guide 10 and the light guide 11 are inserted into the inside of the image guide 3. Moreover, this flexible tube 13 is
4 to branch pipes 15 and 16, and an image guide plug 17 and a light guide plug 18 are fixed to the tips of each (as shown in FIG. 1), and (as shown in FIG. 5). One branch pipe 15 is connected to the eyepiece 19, and the other branch pipe 16 is connected to the light source 20.
Furthermore, the eyepiece section 19 is connected to a television camera 21.
従つて、このフアイバスコープ１を使つて、眼
球Ａの内部を観察する場合、第５図と第６図に示
す如く、グリツプ部２を片手で握り、予め眼球Ａ
の白眼部Ｂに開設した小孔へ（第６図に破線で示
した）誘導短管を挿入し、続いてプローブ管３を
挿入する。光源２０から照明ライトを、ライトガ
イド１１を介して（第２図参照）被観察部である
ところの網膜２２等を照射し、該被観察部から反
対した光を対物レンズ９を介してイメージガイド
１０に入光させて、接眼部１９へ伝送する（第２
図と第５図参照）。 Therefore, when observing the inside of the eyeball A using this fiberscope 1, as shown in FIGS.
A short guide tube (indicated by a broken line in FIG. 6) is inserted into a small hole made in the white part of the eye B, and then a probe tube 3 is inserted. Illumination light from a light source 20 is directed through a light guide 11 (see FIG. 2) to the retina 22, which is the area to be observed, and the opposite light from the area to be observed is passed through the objective lens 9 to an image guide. 10 and transmits it to the eyepiece section 19 (second
(see Figure and Figure 5).
さらに、第５図のように伝送された画像を接眼
部１９の接眼レンズを介してテレビカメラ２１に
伝送して、これに表示して観察できる。 Further, as shown in FIG. 5, the transmitted image is transmitted to the television camera 21 through the eyepiece lens of the eyepiece section 19, and can be displayed on the television camera 21 for observation.
この観察は、単に診断のみに限らず、手術中の
観察にも勿論適用される。 This observation is of course applied not only to diagnosis but also to observation during surgery.
第８図は比較例であり、本考案の第６図と比較
すれば、明らかなように、プローブ管３が直線状
の場合には、眼球Ａ内の内、水晶体Ｅの周縁に対
応する網膜２２の手前域Ｆを見ることが不可能で
ある。これに対し、本考案のものでは、眼球Ａの
挿入深さの調整にて網膜２２の手前域Ｆを含む極
めて広い範囲を、確実に観察可能である。 FIG. 8 is a comparative example, and when compared with FIG. 6 of the present invention, it is clear that when the probe tube 3 is straight, the retina corresponding to the periphery of the crystalline lens E within the eyeball A It is impossible to see the front area F of 22. In contrast, in the present invention, by adjusting the insertion depth of the eyeball A, it is possible to reliably observe an extremely wide range including the front region F of the retina 22.
なお、第２図に於て、ロツドレンズから成る対
物レンズ９の対応する先端７に極めて短い長さｌ
の直線部２３を形成するも自由であつて、この長
さｌは０〜３mmに設定するのが良い。また、図示
省略するが、ロツドレンズ９の軸心線とプローブ
管３の軸心線ｂとは一致させず、ロツドレンズ９
の軸心線が弯曲アール状の内側へ傾斜状に設ける
も自由である。 In addition, in FIG. 2, there is a very short length l at the corresponding tip 7 of the objective lens 9 made of a rod lens.
The straight portion 23 can be freely formed, and the length l is preferably set to 0 to 3 mm. Although not shown, the axial center line of the rod lens 9 and the axial center line b of the probe tube 3 are not made to match, and the rod lens 9
It is also possible to provide the axial center line in a curved radius inwardly.
また、第２図では曲率半径Ｒは、プローブ管３
の弯曲アール部５の全体にわたつて一定の場合を
示しているが、第７図に示す如く、曲率半径を、
R1，R2，R3のように複数段に変化させ、又は、
連続的に変化させるも望ましく、特に先端７の曲
率半径R1を小さく設定するのが良い。 In addition, in FIG. 2, the radius of curvature R is the probe tube 3
As shown in FIG. 7, the radius of curvature is constant over the entire curved radius portion 5.
Change in multiple stages like R 1 , R 2 , R 3 , or
It is also desirable that the radius of curvature R 1 of the tip 7 is set small.
なお、プローブ管３内にチユーブを挿入してお
いて、眼球Ａ内のウミの吸出し等を可能とするも
好ましい。 In addition, it is preferable to insert a tube into the probe tube 3 to enable suction of sea urinaries in the eyeball A, etc.
本考案は上述の構成により、片手でグリツプ部
２を握りながら、眼球Ａ内へ細径プローブ管３を
挿入して、内部の広い範囲−特に網膜２２の手前
域Ｆを含む広い範囲−を、確実に観察して、眼の
治療に大きな貢献をなす考案である。
With the above-described configuration, the present invention allows the thin probe tube 3 to be inserted into the eyeball A while holding the grip part 2 with one hand, and to probe a wide area inside the eyeball A, particularly a wide area including the front area F of the retina 22. This is a device that enables reliable observation and greatly contributes to eye treatment.
第１図は本考案の一実施例を示す正面図、第２
図は要部拡大断面図、第３図は第２図の−矢
視拡大図、第４図は第２図の−断面拡大図、
第５図は使用状態斜視図、第６図は使用状態説明
図、第７図は変形例を示す要部正面図、第８図は
比較例の使用状態図である。
２……クリツプ部、３……細径プローブ管、８
……最先端部、１０……イメージガイド、１１…
…ライトガイド、Ｒ……曲率半径、Ｃ……弯曲開
始点、θ……方向変換角度。
Figure 1 is a front view showing one embodiment of the present invention;
The figure is an enlarged sectional view of the main part, Figure 3 is an enlarged view of - arrow in Figure 2, Figure 4 is an enlarged cross-sectional view of Figure 2,
FIG. 5 is a perspective view of the device in use, FIG. 6 is an explanatory diagram of the device in use, FIG. 7 is a front view of a main part showing a modified example, and FIG. 8 is a diagram of a comparative example in use. 2...Clip part, 3...Small diameter probe tube, 8
...Cutting edge section, 10...Image guide, 11...
... Light guide, R ... Radius of curvature, C ... Starting point of curvature, θ ... Direction change angle.
Claims (1)
先端から突出状に眼球挿入用細径プローブ管を突
設し、かつ、該細径プローブ管の曲率半径を３mm
〜10mm、方向変換角度を60°〜120°、弯曲開始点
から最先端部までの長さ寸法を５mm〜10mmとした
弯曲アール状に形成したことを特徴とする眼科用
フアイバスコープ。 It has a grip part that can be held with one hand, and a small diameter probe tube for insertion into the eyeball is provided protruding from the tip of the grip part, and the radius of curvature of the small diameter probe tube is 3 mm.
10 mm, a direction change angle of 60° to 120°, and a length from the starting point of curvature to the leading edge of 5 mm to 10 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988052688U JPH0530406Y2 (en) | 1988-04-19 | 1988-04-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988052688U JPH0530406Y2 (en) | 1988-04-19 | 1988-04-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01155404U JPH01155404U (en) | 1989-10-25 |
| JPH0530406Y2 true JPH0530406Y2 (en) | 1993-08-04 |
Family
ID=31278695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988052688U Expired - Lifetime JPH0530406Y2 (en) | 1988-04-19 | 1988-04-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0530406Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150351629A1 (en) * | 2014-06-06 | 2015-12-10 | Novartis Ag | Back reflection minimization for oct probes |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0305170A2 (en) * | 1987-08-24 | 1989-03-01 | Allergan, Inc | Ophthalmic viewing instrument |
-
1988
- 1988-04-19 JP JP1988052688U patent/JPH0530406Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01155404U (en) | 1989-10-25 |
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