JPH0121286Y2 - - Google Patents
Info
- Publication number
- JPH0121286Y2 JPH0121286Y2 JP18422983U JP18422983U JPH0121286Y2 JP H0121286 Y2 JPH0121286 Y2 JP H0121286Y2 JP 18422983 U JP18422983 U JP 18422983U JP 18422983 U JP18422983 U JP 18422983U JP H0121286 Y2 JPH0121286 Y2 JP H0121286Y2
- Authority
- JP
- Japan
- Prior art keywords
- prism
- eyepiece
- endoscope
- prism frame
- frame
- 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
- 230000003287 optical effect Effects 0.000 claims description 10
- 230000001105 regulatory effect Effects 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 6
- 230000033001 locomotion Effects 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Landscapes
- Instruments For Viewing The Inside Of Hollow Bodies (AREA)
Description
【考案の詳細な説明】
〔考案の技術分野〕
この考案は内視鏡接眼部に装着された供覧装置
に撮影装置を装着して撮影できる内視鏡用供覧装
置に関する。[Detailed Description of the Invention] [Technical Field of the Invention] This invention relates to an endoscope viewing device that can take pictures by attaching a photographing device to the viewing device attached to the endoscope eyepiece.
内視鏡接眼部に装着される供覧装置は、その本
体に親側接眼部が設けられているとともに、この
本体から導出する可撓管の先端に子側接眼部が設
けられている。そして、ふたりの検者が親側接眼
部と子側接眼部から同時に観察できるようになつ
ている。したがつて、供覧装置の本体内にはハー
フプリズムからなる光量分割手段が設けられ、内
視鏡接眼部の光軸に沿つて入射される光の一部を
親側接眼部に透過し、残部を子側接眼部に反射す
るように構成されている。
A viewing device attached to an endoscope eyepiece has a main eyepiece on its main body, and a child eyepiece on the tip of a flexible tube leading out from the main body. . Two examiners can observe from the parent eyepiece and the child eyepiece at the same time. Therefore, a light amount splitting means consisting of a half prism is provided in the main body of the viewing device, and a part of the light incident along the optical axis of the endoscope eyepiece is transmitted to the main eyepiece. , and is configured to reflect the remaining portion to the secondary eyepiece.
このように、供覧装置によつて内視鏡接眼部か
らの光を親側と子側に２分すると、いずれの接眼
部側でも撮影に必要な光量が不足し、一方に撮影
装着して撮影しても鮮明画像が得られない。 In this way, when the viewing device divides the light from the endoscope eyepiece into two parts, the main side and the child side, there is insufficient light for both eyepieces, and the camera is attached to one side. A clear image cannot be obtained even if you take a picture.
また、従来、たとえば、実願昭54−160799号や
特開昭53−105738号公報のように、供覧装置の外
部からの操作で光量分割手段の切換えが可能なも
のもあつたが、切換部に何の付勢もないため操作
を最後まで確実に行なわなければならなかつた
り、操作中に光量分割手段が移動してしまうこと
があつた。また、特願昭58−112640号のように、
切換部を一方向に付勢したものもあるが、付勢の
逆方向に操作した場合は、手を離すと戻つてしま
うため手を添えていなければならず、内視鏡自体
の操作に支障があつた。 Furthermore, in the past, as in Utility Application No. 54-160799 and Japanese Unexamined Patent Application Publication No. 53-105738, there were devices in which the light amount division means could be switched by an operation from outside the viewing device. Since there is no energization, the operation must be carried out reliably until the end, or the light amount dividing means may move during the operation. Also, as in the patent application No. 112640/1983,
Some models have a switching section that is biased in one direction, but if you operate it in the opposite direction, it will return when you let go of your hand, so you will have to keep your hand on it, which will interfere with the operation of the endoscope itself. It was hot.
〔考案の目的〕
この考案は上記事情に着目してなされたもの
で、その目的とするところは、内視鏡より供覧装
置を取り外すことなく撮影装置を取付けて撮影が
でき、光量分割手段の切換えが、いずれの位置に
でも確実に保持でき、内視鏡の操作性の向上と確
実な検査を行なうことができる内視鏡用供覧装置
を提供しようとするものである。[Purpose of the invention] This invention was made with attention to the above-mentioned circumstances, and its purpose is to enable photographing by attaching a photographing device to the endoscope without removing the viewing device, and to change the light intensity division means. However, it is an object of the present invention to provide an endoscope viewing device that can be held securely in any position, and that can improve the operability of the endoscope and perform reliable inspections.
光量分割手段を形成するハーフプリズムと透過
プリズムとを設けたプリズム枠を付勢部材によつ
て一方向に付勢するとともに供覧装置の本体によ
つてプリズム枠の移動量を規制し、この本体の外
部からの操作によつて上記プリズム枠を付勢方向
と逆方向に所定位置まで移動したとき、その操作
部材のピンを保持部材によつて保持してプリズム
枠を所定位置で固定的に保持できるようにしたこ
とにある。
A prism frame provided with a half prism and a transmission prism forming the light amount dividing means is biased in one direction by a biasing member, and the amount of movement of the prism frame is regulated by the main body of the viewing device. When the prism frame is moved to a predetermined position in a direction opposite to the biasing direction by an external operation, the pin of the operating member is held by the holding member, so that the prism frame can be fixedly held at the predetermined position. That's what I did.
以下、この考案を図面に示す一実施例にもとづ
いて説明する。第１図中１は内視鏡で、これは操
作部２、挿入部３および光源装置４に接続される
ユニバーサルコード５とから構成されている。ま
た、上記操作部２には内視鏡接眼部６が設けら
れ、この内視鏡接眼部６には後述する供覧装置７
が装着できるようになつている。この供覧装置７
の本体８には親側接眼部９が設けられているとと
もに、可撓管１０を介して子側接眼部１１が接続
されている。そして、この親側接眼部９には撮影
装置１２が装着できるようになつている。
This invention will be explained below based on an embodiment shown in the drawings. Reference numeral 1 in FIG. 1 denotes an endoscope, which is composed of an operating section 2, an insertion section 3, and a universal cord 5 connected to a light source device 4. As shown in FIG. Further, the operation section 2 is provided with an endoscope eyepiece section 6, and this endoscope eyepiece section 6 has a viewing device 7, which will be described later.
can now be installed. This viewing device 7
The main body 8 is provided with a parent eyepiece 9 and is connected to a child eyepiece 11 via a flexible tube 10. A photographing device 12 can be attached to the parent eyepiece 9.
つぎに、上記供覧装置７および撮影装置１２に
ついて詳述すると、第２図乃至第５図に示すよう
に構成されている。すなわち、供覧装置７の本体
８は円筒状に形成されていて、この本体８の内部
には案内部材１３が一体に設けられ、この案内部
材１３には軸方向と直交する角孔１４が穿設さ
れ、この角孔１４にはプリズム枠１５が上下動自
在に設けられている。このプリズム枠１５は上記
角孔１４に遊挿する平坦部１６と円弧部１７とに
よつてほぼ半円枠状に形成されている。そして、
このプリズム枠１５の平坦部１６にはハーフプリ
ズム１８と透過プリズム１９とが上下に隣接して
取付けられている。さらに、この平坦部１６の一
端と上記レンズ保持枠１３との間にはコイルスプ
リングからなる付勢部材２０が張設され、プリズ
ム枠１５を一方向に付勢している。そして、レン
ズ保持枠１３の角孔１４に沿つて上記プリズム枠
１５を直線的に上下動するプリズム切換機構２１
を構成している。さらに、このプリズム枠１５の
上下端の円弧部１７ａ，１７ｂは上記本体８の内
壁の当接部８ａ，８ｂに当接してその移動量が規
制されるようになつている。そして、ハーフプリ
ズム１８と透過プリズム１９が上記内視鏡接眼部
６の光軸O1に選択的に対向できるようになつて
いる。 Next, the viewing device 7 and the photographing device 12 will be described in detail.They are constructed as shown in FIGS. 2 to 5. That is, the main body 8 of the viewing device 7 is formed into a cylindrical shape, and a guide member 13 is integrally provided inside the main body 8, and a square hole 14 perpendicular to the axial direction is bored in the guide member 13. A prism frame 15 is provided in this square hole 14 so as to be vertically movable. The prism frame 15 is formed into a substantially semicircular frame shape by a flat portion 16 and an arcuate portion 17 that are loosely inserted into the square hole 14 . and,
A half prism 18 and a transmission prism 19 are attached vertically adjacent to each other on the flat portion 16 of the prism frame 15. Further, a biasing member 20 made of a coil spring is stretched between one end of the flat portion 16 and the lens holding frame 13, and biases the prism frame 15 in one direction. A prism switching mechanism 21 linearly moves the prism frame 15 up and down along the square hole 14 of the lens holding frame 13.
It consists of Further, the arcuate portions 17a and 17b at the upper and lower ends of the prism frame 15 abut against contact portions 8a and 8b on the inner wall of the main body 8, so that the amount of movement thereof is regulated. The half prism 18 and the transmission prism 19 can selectively face the optical axis O1 of the endoscope eyepiece 6.
また、上記プリズム枠１５の円弧部１７の一部
には平坦部１６と平行に平面部１７ｃが形成さ
れ、この平面部１７ｃには嵌合溝２２が刻設され
ている。そして、この嵌合溝２２と対向する上記
本体８には操作部材２３が設けられている。この
操作部材２３は本体８の側壁を貫通する回転軸２
４とこの回転軸２４の一端部に設けられ外部から
操作可能な操作ノブ２５および回転軸２４の他端
部にその軸心と偏心して突設したピン２６とから
構成されている。そして、このピン２６は上記嵌
合溝２２に係合している。また、この嵌合溝２２
はピン２６の外径よりわずかに広幅の平行部２７
とプリズム枠１５の円弧部１７ａが当接部８ａに
当つたのちもピン２６が回転軸２４の回転中心と
水平になるまで回転できるだけの逃げ部２８と、
ピン２６と回転軸２４とが水平となる位置でピン
２６に突き当る規制面２９から形成されている。
さらに、上記嵌合溝２２の隣側に位置する線ばね
からなる保持部材３０が固定されている。この保
持部材３０は上記嵌合溝２２の平行部２７と平行
な平行部３１と、ピン２６と規制面２９とが突き
当つたときピン２６にオーバラツプする屈曲部３
２を形成している。 Further, a flat portion 17c is formed in a part of the arc portion 17 of the prism frame 15 in parallel with the flat portion 16, and a fitting groove 22 is carved in this flat portion 17c. An operating member 23 is provided on the main body 8 facing the fitting groove 22. This operating member 23 has a rotating shaft 2 passing through the side wall of the main body 8.
4, an operating knob 25 provided at one end of the rotating shaft 24 and operable from the outside, and a pin 26 protruding from the other end of the rotating shaft 24 eccentrically with respect to its axis. This pin 26 is engaged with the fitting groove 22. In addition, this fitting groove 22
is a parallel portion 27 slightly wider than the outer diameter of the pin 26.
and a relief portion 28 that allows the pin 26 to rotate until it becomes parallel to the center of rotation of the rotation shaft 24 even after the arcuate portion 17a of the prism frame 15 contacts the contact portion 8a;
It is formed of a regulating surface 29 that abuts against the pin 26 at a position where the pin 26 and the rotating shaft 24 are horizontal.
Furthermore, a holding member 30 made of a wire spring located adjacent to the fitting groove 22 is fixed. This holding member 30 has a parallel portion 31 that is parallel to the parallel portion 27 of the fitting groove 22, and a bent portion 3 that overlaps the pin 26 when the pin 26 and the regulating surface 29 abut against each other.
2 is formed.
つぎに、上述のように構成された内視鏡用供覧
装置の作用について説明する。内視鏡接眼部６に
供覧装置７を接続すると、内視鏡接眼部６の光軸
O1に供覧装置７の光軸O2が一致する。したがつ
て、内視鏡接眼部６から入射される光の一部はハ
ーフプリズム１８を透過して親側接眼部９側に入
光し、残部は反射し可撓管１０を介して子側接眼
部１１に入光する。このように内視鏡１に供覧装
置７を装着した状態で、さらに、この供覧装置７
に撮影装置１２を装着して観察像を撮影する場合
には、撮影装置１２を供覧装置７の取付部に装着
する。この場合、光軸O1に透過プリズム１９が
あるときプリズム枠１５の円弧部１７ｂは付勢部
材２０によつて本体８と当接部８ｂに当接してお
り、ピン２６は第５図のＡ点にある。操作ノブ２
５を反時計方向に回すと、ピン２６は嵌合溝２２
の平行部２７および保持部材３０の平行部３１を
押しながらＢ点に達し、プリズム枠１５の円弧部
１７ａは本体８の当接部８ａに当接する。この状
態からさらに操作ノブ２５を反時計方向に回す
と、ピン２６は屈曲部３２を押して変形させなが
らＣ点に移り、規制面２９に突き当たる。プリズ
ム枠１５はピン２６がＢ点にきたときすでにハー
フプリズム１８に切換つていて、Ｂ点→Ｃ点では
動かない。ピン２６がＣ点の状態から操作ノブ２
５を時計方向に回転させると、ピン２６は屈曲部
３２を乗り越えてＢ点に位置し、その後は付勢部
材２０の付勢力によつてＡ点まで戻る。このよう
に、プリズム枠１５の切換途中（Ａ点−Ｂ点間）
では操作ノブ２５から手を離すとＡ点に復帰し、
またＣ点では操作ノブ２５から手を離しても操作
ノブ２５は動かないため、いずれのプリズム位置
に対しても確実に位置を保持できる。 Next, the operation of the endoscope viewing device configured as described above will be explained. When the viewing device 7 is connected to the endoscope eyepiece 6, the optical axis of the endoscope eyepiece 6
The optical axis O 2 of the viewing device 7 coincides with O 1 . Therefore, a part of the light incident from the endoscope eyepiece 6 passes through the half prism 18 and enters the main eyepiece 9, and the remaining part is reflected and passes through the flexible tube 10. Light enters the secondary eyepiece section 11. With the viewing device 7 attached to the endoscope 1 in this way, the viewing device 7
When the photographing device 12 is attached to the viewing device 7 to photograph an observation image, the photographing device 12 is attached to the mounting portion of the viewing device 7. In this case, when the transmission prism 19 is located on the optical axis O1 , the arcuate portion 17b of the prism frame 15 is in contact with the main body 8 and the contact portion 8b by the biasing member 20, and the pin 26 is At the point. Operation knob 2
5 counterclockwise, the pin 26 will fit into the fitting groove 22.
While pushing the parallel part 27 of the prism frame 15 and the parallel part 31 of the holding member 30, the prism frame 15 reaches point B, and the arc part 17a of the prism frame 15 comes into contact with the contact part 8a of the main body 8. When the operating knob 25 is further turned counterclockwise from this state, the pin 26 moves to point C while pushing and deforming the bent portion 32, and abuts against the regulating surface 29. The prism frame 15 has already switched to the half prism 18 when the pin 26 reaches point B, and does not move from point B to point C. When pin 26 is at point C, turn operation knob 2.
When the pin 5 is rotated clockwise, the pin 26 passes over the bent portion 32 and is located at point B, and then returns to point A by the biasing force of the biasing member 20. In this way, during switching of the prism frame 15 (between point A and point B)
Now, when you release your hand from the operating knob 25, it returns to point A,
Moreover, since the operating knob 25 does not move at point C even if the user releases the operating knob 25, the position of any prism can be reliably maintained.
なお、上記一実施例においては、保持部材３０
を線ばねによつて形成したが、この考案は上記実
施例に限定されず、第６図および第７図に示すよ
うに、板ばねによつて保持部材を構成してもよ
い。第６図における保持部材３３は、その水平部
３４を嵌合溝２２の下部まで延長し、上記一実施
例における嵌合溝２２の平行部２７と兼ねるよう
にしたものであり、屈曲部３５は板ばねを折曲す
ることにより形成し、ピン２６を保持するように
している。 Note that in the above embodiment, the holding member 30
Although the holding member is formed of a wire spring, the present invention is not limited to the above embodiment, and the holding member may be formed of a plate spring as shown in FIGS. 6 and 7. The holding member 33 in FIG. 6 has a horizontal portion 34 extending to the lower part of the fitting groove 22 so as to serve also as the parallel portion 27 of the fitting groove 22 in the above embodiment, and a bent portion 35. It is formed by bending a leaf spring to hold the pin 26.
また、第７図における保持部材３６は、逆Ｕ字
状をなしており、嵌合溝２２の内壁に沿つて挿入
したものである。この保持部材３６には平行部３
７、屈曲部３８および規制面３９が折曲形成され
ており、取付ねじ４０，４０によつてプリズム枠
１５に固定されている。 Further, the holding member 36 in FIG. 7 has an inverted U-shape and is inserted along the inner wall of the fitting groove 22. This holding member 36 has a parallel portion 3
7. The bent portion 38 and the regulating surface 39 are bent and fixed to the prism frame 15 with mounting screws 40, 40.
以上説明したように、この考案によれば、光量
分割手段を形成するプリズム枠の切換えが、いず
れの位置にでも確実に行なえ、しかも、操作中に
振動・衝撃が加わつてもプリズム枠が移動するこ
とがなく、所定位置に確実に保持できる。したが
つて、内視鏡の操作性を向上することができると
いう効果を奏する。
As explained above, according to this invention, the prism frame forming the light amount dividing means can be reliably switched to any position, and moreover, the prism frame can be moved even if vibrations or shocks are applied during operation. It can be held in place reliably without any problems. Therefore, it is possible to improve the operability of the endoscope.
第１図乃至第５図はこの考案の一実施例を示す
もので、第１図は全体の概略的構成図、第２図は
全体の光学系を示す構成図、第３図は光学系の一
部を示す斜視図、第４図は供覧装置の断面図、第
５図は保持部材の作用説明図、第６図はこの考案
の他の実施例を示す斜視図、第７図はこの考案の
さらに異なる実施例を示す正面図である。
６……内視鏡接眼部、７……供覧装置、８……
本体、８ａ，８ｂ……当接部、９……親側接眼
部、１１……子側接眼部、１２……撮影装置、１
８……ハーフプリズム、１９……透過プリズム、
１３……案内部材、１５……プリズム枠、２０…
…付勢部材、２２……嵌合溝、２３……操作部
材、２６……ピン、３０，３３，３６……保持部
材。
Figures 1 to 5 show an embodiment of this invention. Figure 1 is a schematic diagram of the overall configuration, Figure 2 is a configuration diagram showing the entire optical system, and Figure 3 is a diagram of the optical system. FIG. 4 is a sectional view of the viewing device, FIG. 5 is an explanatory diagram of the operation of the holding member, FIG. 6 is a perspective view showing another embodiment of this invention, and FIG. 7 is a perspective view of this invention. FIG. 3 is a front view showing a further different embodiment of the invention. 6... Endoscope eyepiece section, 7... Viewing device, 8...
Main body, 8a, 8b... Contact portion, 9... Parent side eyepiece, 11... Child side eyepiece, 12... Photographing device, 1
8... Half prism, 19... Transparent prism,
13... Guide member, 15... Prism frame, 20...
...Biasing member, 22... Fitting groove, 23... Operating member, 26... Pin, 30, 33, 36... Holding member.
Claims (1)
に親側接眼部を形成した本体内に光量分割手段を
設け、内視鏡接眼部の光軸に沿つて入射される光
の一部を上記親側接眼部側に透過するとともに、
残部を子側接眼部側に反射するように構成した内
視鏡用供覧装置において、上記光量分割手段を形
成するハーフプリズムと透過プリズムとを光軸と
垂直となる方向に隣接して設けたプリズム枠と、
回転運動を直線運動に変換し上記プリズム枠を直
線方向に案内してハーフプリズムと透過プリズム
とを選択的に光軸に対向させる案内部材とからプ
リズム切換機構を構成し、上記本体に上記プリズ
ム枠を一方向に付勢する付勢部材を設けるととも
に、そのプリズム枠の移動量を規制する当接部を
設け、かつ、上記プリズム枠の一部に嵌合溝、上
記本体に回転自在に設けた操作部材にこの回転中
心と偏心し上記嵌合溝と係合するピンを設け、上
記操作部材の回転操作によりプリズム枠を上記付
勢部材の付勢方向と逆方向に所定位置まで移動さ
せたとき上記ピンを保持する保持部材を設けたこ
とを特徴とする内視鏡用供覧装置。 The front end side is attached to the endoscope eyepiece, and the main eyepiece is formed on the rear end. A light amount splitting means is provided in the main body, and the light is incident along the optical axis of the endoscope eyepiece. while transmitting a part of it to the parent eyepiece side,
In an endoscope viewing device configured to reflect the remaining portion toward the secondary eyepiece, a half prism and a transmission prism forming the light amount dividing means are provided adjacent to each other in a direction perpendicular to the optical axis. prism frame,
A prism switching mechanism is constituted by a guide member that converts rotational motion into linear motion and guides the prism frame in a linear direction to selectively oppose the half prism and the transmission prism to the optical axis, and the prism frame is attached to the main body. A biasing member for biasing the prism frame in one direction is provided, a contact portion is provided for regulating the amount of movement of the prism frame, and a fitting groove is provided in a part of the prism frame and a rotatable part is provided in the main body. When the operating member is provided with a pin that is eccentric to the center of rotation and engages with the fitting groove, and the prism frame is moved to a predetermined position in a direction opposite to the biasing direction of the biasing member by rotating the operating member. An endoscope viewing device comprising a holding member that holds the pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18422983U JPS6092221U (en) | 1983-11-29 | 1983-11-29 | Endoscope viewing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18422983U JPS6092221U (en) | 1983-11-29 | 1983-11-29 | Endoscope viewing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6092221U JPS6092221U (en) | 1985-06-24 |
| JPH0121286Y2 true JPH0121286Y2 (en) | 1989-06-26 |
Family
ID=30398513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18422983U Granted JPS6092221U (en) | 1983-11-29 | 1983-11-29 | Endoscope viewing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6092221U (en) |
-
1983
- 1983-11-29 JP JP18422983U patent/JPS6092221U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6092221U (en) | 1985-06-24 |
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