JPH02116358A - Ultrasonic endoscope - Google Patents
Ultrasonic endoscopeInfo
- Publication number
- JPH02116358A JPH02116358A JP26832088A JP26832088A JPH02116358A JP H02116358 A JPH02116358 A JP H02116358A JP 26832088 A JP26832088 A JP 26832088A JP 26832088 A JP26832088 A JP 26832088A JP H02116358 A JPH02116358 A JP H02116358A
- Authority
- JP
- Japan
- Prior art keywords
- balloon
- tip
- distal end
- ultrasonic
- outer circumferential
- 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
- 238000003780 insertion Methods 0.000 claims description 19
- 230000037431 insertion Effects 0.000 claims description 19
- 239000000523 sample Substances 0.000 claims description 9
- 239000007788 liquid Substances 0.000 abstract description 11
- 239000011347 resin Substances 0.000 abstract description 2
- 229920005989 resin Polymers 0.000 abstract description 2
- 238000003384 imaging method Methods 0.000 description 8
- 238000002604 ultrasonography Methods 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 6
- 238000005286 illumination Methods 0.000 description 5
- 239000006059 cover glass Substances 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000003745 diagnosis Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 210000001198 duodenum Anatomy 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229940057995 liquid paraffin Drugs 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、超音波像および固体撮像素子、イメージガイ
ドによる観察像を得ることのできる超音波内視鏡に関す
るものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an ultrasound endoscope that can obtain an ultrasound image and an observation image using a solid-state image sensor and an image guide.
挿入部先端に設けた光学系およびイメージガイド等を介
して観察像を得るとともに、挿入部先端に回転自在に設
けた超音波探触子を手元操作部から挿入部先端まで延在
するフレキシブルシャフト等を介して回転動させながら
体腔内等の被検体をメカニカルスキャンする超音波内視
鏡は周知である。An observation image is obtained through an optical system, an image guide, etc. installed at the tip of the insertion tube, and an ultrasonic probe rotatably installed at the tip of the insertion tube is attached to a flexible shaft that extends from the hand control section to the tip of the insertion tube. Ultrasonic endoscopes that mechanically scan a subject inside a body cavity while being rotated through the ultrasound endoscope are well known.
また、こうした超音波内視鏡において超音波を送受信す
る超音波窓部にバルーン装着溝を介してゴム等の伸縮性
を有するバルーンを装着し、このバルーン内に先端構成
部に満たしである超音波伝達媒体液を超音波伝達媒体液
給排溝から充填し、経内視鏡的に臓器等の被検体にバル
ーンを押し当てながら超音波を出射して超音波像を得る
いわゆるバルーン密着法も周知である。In addition, in such an ultrasonic endoscope, a stretchable balloon such as rubber is attached to the ultrasonic window section that transmits and receives ultrasonic waves through a balloon attachment groove, and the tip component of the balloon is filled with ultrasonic waves. The so-called balloon contact method is also well-known, in which ultrasonic transmission medium liquid is filled through the ultrasonic transmission medium liquid supply/drain groove, and ultrasonic waves are emitted while pressing the balloon against a subject such as an organ endoscopically to obtain an ultrasonic image. It is.
ところで従来のバルーン密着法による超音波内視鏡にお
いては、挿入部先端にバルーンを着脱するための溝を外
周に一つあるいは二つ形成している。例えば第５図に示
すように、一つのバルーン係止溝２３にバルーン２４を
係止して先端構成部２５に被せ、バルーン内部に超音波
伝達媒体液を送液して所要の大きさに膨張させた場合、
先端構成部前方にも膨らんでしまい挿入部先端が大きく
重くなってしまう。このため操作性が悪くなり、操作性
を向上させるためにはバルーンをその都度縮小しなけれ
ばならないという不具合がある。By the way, in an ultrasonic endoscope using the conventional balloon contact method, one or two grooves for attaching and detaching the balloon are formed on the outer periphery at the distal end of the insertion section. For example, as shown in FIG. 5, a balloon 24 is locked in one balloon locking groove 23 and placed over the tip component 25, and an ultrasonic transmission medium liquid is fed into the balloon to inflate it to a desired size. If you let
The distal end component also bulges forward, making the distal end of the insertion portion large and heavy. This results in poor operability, and there is a problem in that the balloon must be shrunk each time in order to improve operability.
また、第６図に示す実開昭６３−３４４１２号公報に記
載があるような二つの溝２６．２７にバルーン２８の繰
り出し端部２９．３０を嵌め込む構成のものは、硬質部
長が長くなってしまうため図示のごとく先端面をほぼフ
ラットに形成している。しかしこうした形状は挿入性が
悪く、特に十二指腸のごとく屈曲部が多い狭い個所への
挿入は、かなりの熟練者でなければ困難である。Furthermore, in the case of a structure in which the balloon 28 is fitted into the two grooves 26, 27 as shown in FIG. As shown in the figure, the tip end surface is formed almost flat. However, such a shape does not allow easy insertion, and it is difficult to insert it into a narrow place with many bends, such as the duodenum, unless one is very skilled.
本発明は、上記問題点を解決すべく提案されるもので、
先端硬質部を長くせず操作性、挿入性のよいバルーン密
着型の超音波内視鏡を提供することを目的としたもので
ある。The present invention is proposed to solve the above problems,
The object of the present invention is to provide a balloon-contact type ultrasonic endoscope that does not have a long hard tip and has good operability and insertability.
〔課題を解決するための手段および作用〕本発明は、上
記目的を達成するため超音波探触子を挿入部先端に設け
、先端部外周の先端側と操作部側に形成したバルーン取
付は部を介して先端部外側にバルーンを装着する超音波
内視鏡において、先端側のバルーン取付は部の外周径を
操作部側のバルーン取付は部の外周径より小径とすると
ともに挿入部先端面を略球面形状としたものである。[Means and effects for solving the problems] In order to achieve the above object, the present invention provides an ultrasonic probe at the tip of the insertion section, and a balloon attachment formed on the distal end side and the operation section side of the outer periphery of the tip section. In an ultrasonic endoscope in which a balloon is attached to the outside of the distal end via a It has a substantially spherical shape.
このようにバルーン繰り出し端部の二つの係止溝を先端
側係止溝が操作部側係止溝より小径とするとともに先端
キャップを略球面形状としたことにより挿入性、操作性
が向上する。In this way, by making the two locking grooves at the balloon delivery end such that the distal end side locking groove has a smaller diameter than the operating section side locking groove and the distal end cap has a substantially spherical shape, insertability and operability are improved.
第１図は、本発明の第１実施例を示したもので先端構成
部である。第１図Ａは断面図であるが、この先端構成部
１の後方には可撓性を有する挿入部が連設してあり、図
示していない操作部まで延在する。先端構成部１の先端
には超音波窓部３を設け、その内部には回転自在の超音
波探触子４を設けている。超音波探触子４は、ベアリン
グ５に支持され超音波探触子４に一端を連結したフレキ
シブルシャフト６とこれを被覆するフレキシブルチュー
ブ７とが挿入部内を通り操作部まで延在する。フレキシ
ブルシャフト６の他端は、操作部内のサーボモータ等の
回転駆動源に接続してあり、超音波探触子４を回転する
ようにしである。FIG. 1 shows a first embodiment of the present invention, which is a tip component. FIG. 1A is a cross-sectional view, and a flexible insertion section is connected to the rear of the distal end component 1 and extends to an operation section (not shown). An ultrasonic window 3 is provided at the tip of the tip component 1, and a rotatable ultrasonic probe 4 is provided inside the window 3. In the ultrasonic probe 4, a flexible shaft 6 supported by a bearing 5 and connected at one end to the ultrasonic probe 4, and a flexible tube 7 covering the shaft pass through the insertion portion and extend to the operating portion. The other end of the flexible shaft 6 is connected to a rotational drive source such as a servo motor in the operating section, and is configured to rotate the ultrasound probe 4.
超音波窓部３の内部には例えば流動パラフィン等の超音
波伝達媒体８を充填しており、またフレキシブルシャフ
ト６とフレキシブルチューブ７との間にも超音波伝達媒
体８を充填して超音波ビームの伝達、フレキシブルシャ
フト７の潤滑を図っている。The inside of the ultrasonic window 3 is filled with an ultrasonic transmission medium 8 such as liquid paraffin, and the space between the flexible shaft 6 and the flexible tube 7 is also filled with an ultrasonic transmission medium 8 to transmit the ultrasonic beam. transmission and lubrication of the flexible shaft 7.
先端構成部１の外部は、基部９と樹脂により形成した先
端キャップ１０は基部９に形成しである取付部１１を介
して固定しである。そして先端構成部１の外側には、外
周方向に形成したバルーン取付部１２．１３を介してバ
ルーン２を取付けている。先端側のバルーン取付部１２
の外周径は、操作部側のバルーン取付部１３の外周径よ
り小さく形成しである。バルーン内には、先端キャップ
１０の取付は個所近傍に形成した液体注入口１４から液
体を供給してバルーン２を膨張させ、体腔内へ先端構成
部１を固定するのである。On the outside of the tip structure part 1, a base part 9 and a tip cap 10 formed of resin are fixed to the base part 9 via a mounting part 11 formed therein. The balloon 2 is attached to the outside of the tip component 1 via a balloon attachment portion 12.13 formed in the outer circumferential direction. Balloon attachment part 12 on the tip side
The outer circumferential diameter is smaller than the outer circumferential diameter of the balloon attachment part 13 on the operating section side. The distal end cap 10 is attached to the balloon by supplying liquid from a liquid inlet 14 formed in the vicinity of the balloon to inflate the balloon 2 and fix the distal end component 1 into the body cavity.
先端キャップ１０の先端部は略球面形状に形成しである
。先端構成部１の基部９先端側には外側に向けた観察窓
部を設は先端構成部１の軸方向に対する左右に撮像系用
のカバーガラス１５と照明系用の照明レンズ１６を設け
ている（第１図Ｃ）。The tip of the tip cap 10 is formed into a substantially spherical shape. An observation window facing outward is provided on the distal end side of the base 9 of the distal end component 1, and a cover glass 15 for the imaging system and an illumination lens 16 for the illumination system are provided on the left and right sides in the axial direction of the distal end component 1. (Figure 1C).
照明レンズ１６の直下には、ライトガイドファイバー１
７を設はフレキシブルシャフト６を避けるように曲げな
がら挿入部を通って操作部まで延在させている。一方、
カバーガラス１５の直下にはプリズム１８を設け、先端
部前方に結像面が向くように設けた固体撮像素子１９を
有する撮像部１９に結像を取り込んでいる。２０は固体
撮像素子に接続している信号ケーブルである。Directly below the illumination lens 16 is a light guide fiber 1.
7 is bent so as to avoid the flexible shaft 6 and extends through the insertion section to the operating section. on the other hand,
A prism 18 is provided directly below the cover glass 15, and an image is taken into an imaging section 19 having a solid-state imaging device 19 provided with an imaging surface facing forward at the tip. 20 is a signal cable connected to the solid-state image sensor.
カバーガラス１５の後方に洗浄ノズル２１を設け、その
近傍に吸引口２２を設け、これらに連結する各管路系が
操作部へと延在している。なお、Ｄは第１図ＢのＡ−Ａ
ｌ！ｙｉ面図である。A cleaning nozzle 21 is provided behind the cover glass 15, a suction port 22 is provided near the cleaning nozzle 21, and each pipe system connected to these ports extends to the operating section. Note that D is A-A in Figure 1B.
l! It is a yi side view.
このように構成しているこの超音波内視鏡を用いて超音
波診断するには、挿入部を体腔内へ挿入するわけである
が、先端は略球面形状であるため挿入性がきわめてよい
。先端キャップ１０の超音波窓部３外側にはバルーン取
付部１２．１３を介してバルーン２が取付けてあり、所
要位置まで挿入部が挿入されたところで液体注入口１４
からバルーン２内へ液体を供給してバルーン２を膨張さ
せ、目的部位にバルーン２を接触させて定置する。In order to perform ultrasound diagnosis using this ultrasound endoscope configured as described above, the insertion section is inserted into a body cavity, and since the tip has a substantially spherical shape, insertability is extremely good. The balloon 2 is attached to the outside of the ultrasonic window 3 of the tip cap 10 via a balloon attachment section 12.13, and when the insertion section is inserted to the required position, the liquid inlet 14 is opened.
A liquid is supplied into the balloon 2 to inflate the balloon 2, and the balloon 2 is placed in contact with the target site.
目的部位を変えれば超音波診断するために操作部で技術
者が挿入部先端の向きを変えたり、挿入方向に移動させ
たりする必要があるが、本実施例では先端構成部１の長
さが短いとともにバルーン２の位置が先端キャップ１０
の先端面にはなく側部外側のみにあるため、先端にかか
る重量が操作の支障とならず操作性が良い。If the target area is changed, it is necessary for the technician to use the operation unit to change the direction of the insertion tube tip or move it in the insertion direction in order to perform ultrasound diagnosis, but in this example, the length of the tip component 1 is It is short and the position of the balloon 2 is the tip cap 10.
Because it is located only on the outside of the side and not on the tip surface, the weight on the tip does not interfere with operation, making it easy to operate.
本実施例では前者のごとく挿入部先端が球面形状であり
、また先端硬質部長い短いため挿入性がよいが、更にそ
のための具体的構成を第３図、第４図に基づいて具体的
に説明すると、第３図に示す従来型のものはバルーン取
付部の前後２個所の外径は同一にしである。したがって
、Ｄ、＝Ｄ、であり先端面は大きく前方へ突出した略球
面形状となる。In this example, the tip of the insertion part is spherical like the former, and the hard tip part is long and short, so insertion is easy.The specific configuration for this will be explained in detail based on FIGS. 3 and 4. Then, in the conventional type shown in FIG. 3, the outer diameters of the two locations on the front and back of the balloon attachment portion are the same. Therefore, D,=D, and the tip surface has a substantially spherical shape that protrudes largely forward.
一方、第４図に示す本実施例のものは先端側のバルーン
取付部の外径を操作部側のものより小さくしてあり、し
たがってｄ、＜ｄ、となる。このため先端面は前方へわ
ずかに突出した程度の略球面形状とすることができ、従
来型のものに比し２分だけ先端硬質部長を短くできる。On the other hand, in this embodiment shown in FIG. 4, the outer diameter of the balloon mounting portion on the distal end side is smaller than that on the operating portion side, so d<d. Therefore, the tip surface can be formed into a substantially spherical shape that protrudes slightly forward, and the hard tip portion can be shortened by two minutes compared to the conventional type.
第２図は、本発明の第２実施例を示すものである。先端
側のバルーン取付部１２ａの溝幅を第１実施例のものよ
り細くし、バルーン２は先端面から後方へ被せるように
設け、バルーン２の繰す出し部２ａを操作部側のバルー
ン取付部１３に嵌め込んで取付ける。先端側のバルーン
取付部１２ａでは、バルーン２が固定されるように糸巻
きをする。こうすることにより、液体注入口１４から液
体をバルーン２内へ供給してバルーン２を膨張させても
先端方向へのバルーン２の膨張は規制される。FIG. 2 shows a second embodiment of the invention. The groove width of the balloon attachment part 12a on the distal end side is made narrower than that of the first embodiment, and the balloon 2 is provided so as to cover from the distal end surface to the rear, so that the feeding part 2a of the balloon 2 is connected to the balloon attachment part on the operation part side. 13 and install it. At the balloon attaching part 12a on the distal end side, a thread is wound so that the balloon 2 is fixed. By doing so, even if the liquid is supplied into the balloon 2 from the liquid inlet 14 to inflate the balloon 2, the expansion of the balloon 2 in the distal direction is restricted.
本実施例では、先端側のバルーン取付は溝を細くしたの
で先端硬質長を更に短くでき挿入部の挿入性、操作性は
より向上する。In this embodiment, since the groove for attaching the balloon on the distal end side is narrowed, the rigid length of the distal end can be further shortened, and the insertability and operability of the insertion section are further improved.
本発明は、以上の実施例に限定されるものではなく、幾
多の変更、変形が可能である。例えば、第１実施例にお
いて、第２実施例で示したバルーンを用いた先端構成部
としてもよい。また、照明系としては、先端構成部内に
組み込み可能な小型ランプとケーブルとの組合わせ、高
輝度ＬＥＤとケーブルとの組合わせでもよい。また、撮
像系として固体撮像素子に代えてイメージガイドファイ
バーを用いてもよい。また、照明系と撮像系の配設位置
を逆にしてもよい。The present invention is not limited to the above-described embodiments, and numerous changes and modifications are possible. For example, in the first embodiment, the tip component may use the balloon shown in the second embodiment. Furthermore, the illumination system may be a combination of a small lamp that can be incorporated into the tip component and a cable, or a combination of a high-intensity LED and a cable. Furthermore, an image guide fiber may be used as the imaging system instead of the solid-state imaging device. Furthermore, the arrangement positions of the illumination system and the imaging system may be reversed.
〔発明の効果］
以上のごとく、本発明によればバルーン取付は部を先端
側が操作部側より小径となるようにしたことにより、先
端キャップ端面を突出程度の小さい略球面形状とするこ
とができる。したがって、先端硬質部長を短くできまた
挿入し易い先端面であるため、挿入性、操作性の向上を
図ることができる。[Effects of the Invention] As described above, according to the present invention, by making the balloon mounting portion smaller in diameter on the distal end side than on the operating portion side, the end face of the distal end cap can be made into a substantially spherical shape with a small protrusion. . Therefore, since the hard tip portion can be shortened and the tip surface is easy to insert, insertability and operability can be improved.
第１図Ａは、本発明の第１実施例に係る撮像系側断面図
、Ｂは同平面図、Ｃはライトガイドファイバー側断面図
、Ｄは第１図ＢにおけるＡ−Ａ断面図、
第２図Ａ、Ｂは本発明の第２実施例を示す概略図、
第３図、第４図は従来例と本発明の対比説明図、第５図
、第６図は従来例を示す断面図である。
１・・・先端構成部 ２・・・バルーン４・・・
超音波探触部 １０・・・先端キャップ１２、１３
・・・バルーン取付は部
特許出願人 オリンパス光学工業株式会社第５図
第６図
手 続
補
正
書
昭和６３年１２月１５日
特許庁長官 吉 １） 文 毅 殿１、
事件の表示
昭和６３年特許願第２６８３２０号
２、発明の名称
３、補正をする者
事件との関係
超音波内視鏡1A is a side sectional view of the imaging system according to the first embodiment of the present invention, B is a plan view thereof, C is a side sectional view of the light guide fiber, D is a sectional view taken along line A-A in FIG. 2A and 2B are schematic diagrams showing the second embodiment of the present invention, Figures 3 and 4 are explanatory diagrams comparing the conventional example and the present invention, and Figures 5 and 6 are sectional views showing the conventional example. It is. 1...Tip component 2...Balloon 4...
Ultrasonic probe section 10...Tip caps 12, 13
...Balloon attachment is a matter of patent applicant: Olympus Optical Industry Co., Ltd. Figure 5 Figure 6 Procedural amendment December 15, 1988 Director General of the Patent Office Yoshi 1) Moon Yi 1,
Display of the case 1988 Patent Application No. 268320 2, Title of the invention 3, Person making the amendment Relationship to the case Ultrasonic endoscope
Claims (1)
端側と操作部側に形成したバルーン取付け部を介して先
端部外側にバルーンを装着する超音波内視鏡において、 先端側のバルーン取付け部の外周径を操作 部側のバルーン取付け部の外周径より小径とするととも
に挿入部先端面を略球面形状としたことを特徴とする超
音波内視鏡。[Claims] 1. An ultrasonic probe in which an ultrasonic probe is provided at the tip of the insertion section and a balloon is attached to the outside of the tip via balloon attachment portions formed on the tip side of the tip's outer periphery and on the operation section side. An ultrasonic endoscope, characterized in that the outer circumferential diameter of the balloon attachment part on the distal end side is smaller than the outer circumferential diameter of the balloon attachment part on the operation part side, and the distal end surface of the insertion part is formed into a substantially spherical shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63268320A JPH0613034B2 (en) | 1988-10-26 | 1988-10-26 | Intracorporeal ultrasound diagnostic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63268320A JPH0613034B2 (en) | 1988-10-26 | 1988-10-26 | Intracorporeal ultrasound diagnostic device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02116358A true JPH02116358A (en) | 1990-05-01 |
| JPH0613034B2 JPH0613034B2 (en) | 1994-02-23 |
Family
ID=17456899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63268320A Expired - Lifetime JPH0613034B2 (en) | 1988-10-26 | 1988-10-26 | Intracorporeal ultrasound diagnostic device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0613034B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0499910U (en) * | 1991-01-30 | 1992-08-28 | ||
| EP1813195A1 (en) * | 2004-11-09 | 2007-08-01 | Olympus Corporation | Ultrasonic endoscope |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4910389U (en) * | 1972-04-25 | 1974-01-29 | ||
| JPS5690210U (en) * | 1979-12-14 | 1981-07-18 | ||
| JPS5690210A (en) * | 1979-12-22 | 1981-07-22 | Nippon Telegr & Teleph Corp <Ntt> | Measurement device for position and posture angle of underground boring machine |
| JPS5757535A (en) * | 1980-09-22 | 1982-04-06 | Olympus Optical Co | Ultrasonic diagnostic apparatus |
| JPS5779513U (en) * | 1980-10-31 | 1982-05-17 | ||
| JPS5779513A (en) * | 1980-11-04 | 1982-05-18 | Hitachi Ltd | Controller for process control |
| JPS584230A (en) * | 1981-06-30 | 1983-01-11 | 日本電気ホームエレクトロニクス株式会社 | Temperature fuse |
| JPS587230A (en) * | 1981-07-06 | 1983-01-17 | アロカ株式会社 | Ultrasonic probe for endoscope |
| JPS5865129A (en) * | 1981-10-13 | 1983-04-18 | オリンパス光学工業株式会社 | Endoscope apparatus for high frequency diagnosis |
-
1988
- 1988-10-26 JP JP63268320A patent/JPH0613034B2/en not_active Expired - Lifetime
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4910389U (en) * | 1972-04-25 | 1974-01-29 | ||
| JPS5690210U (en) * | 1979-12-14 | 1981-07-18 | ||
| JPS5690210A (en) * | 1979-12-22 | 1981-07-22 | Nippon Telegr & Teleph Corp <Ntt> | Measurement device for position and posture angle of underground boring machine |
| JPS5757535A (en) * | 1980-09-22 | 1982-04-06 | Olympus Optical Co | Ultrasonic diagnostic apparatus |
| JPS5779513U (en) * | 1980-10-31 | 1982-05-17 | ||
| JPS5779513A (en) * | 1980-11-04 | 1982-05-18 | Hitachi Ltd | Controller for process control |
| JPS584230A (en) * | 1981-06-30 | 1983-01-11 | 日本電気ホームエレクトロニクス株式会社 | Temperature fuse |
| JPS587230A (en) * | 1981-07-06 | 1983-01-17 | アロカ株式会社 | Ultrasonic probe for endoscope |
| JPS5865129A (en) * | 1981-10-13 | 1983-04-18 | オリンパス光学工業株式会社 | Endoscope apparatus for high frequency diagnosis |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0499910U (en) * | 1991-01-30 | 1992-08-28 | ||
| EP1813195A1 (en) * | 2004-11-09 | 2007-08-01 | Olympus Corporation | Ultrasonic endoscope |
| EP1813195A4 (en) * | 2004-11-09 | 2008-03-19 | Olympus Corp | Ultrasonic endoscope |
| US8066643B2 (en) | 2004-11-09 | 2011-11-29 | Olympus Corporation | Ultrasonic endoscope |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0613034B2 (en) | 1994-02-23 |
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