JP2785252B2 - Endoscope - Google Patents
EndoscopeInfo
- Publication number
- JP2785252B2 JP2785252B2 JP4258310A JP25831092A JP2785252B2 JP 2785252 B2 JP2785252 B2 JP 2785252B2 JP 4258310 A JP4258310 A JP 4258310A JP 25831092 A JP25831092 A JP 25831092A JP 2785252 B2 JP2785252 B2 JP 2785252B2
- Authority
- JP
- Japan
- Prior art keywords
- puncture needle
- distal end
- observation optical
- optical window
- outlet
- 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 - Fee Related
Links
Description
【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION
【０００１】[0001]
【産業上の利用分野】本発明は内視鏡に係り、特に生体
挿入部の先端構成部に超音波送受信手段、穿刺針の導出
口、及び穿刺針の観察光学窓を備えた内視鏡に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an endoscope, and more particularly to an endoscope provided with an ultrasonic transmitting / receiving means, a puncture needle outlet, and a puncture needle observation optical window at a distal end portion of a living body insertion portion. .
【０００２】[0002]
【従来の技術】従来、内視鏡の先端構成部に超音波送受
信手段、穿刺針の導出口、及び穿刺針の観察光学窓を配
置して、生体内の病変部の診断、或いは治療等を行う内
視鏡が知られている。例えば、特願昭６３−２５２９６
１号公報に開示された内視鏡は、前記超音波送受信手段
が側方に向けて取り付けられ、また前記導出口が超音波
送受信手段よりも手元操作部側に配置され、更に前記観
察光学窓が超音波送受信手段の診断中心線上から横にず
れた位置に配置されており、観察光学窓を通じて体壁や
穿刺針を目視観察しながら、超音波送受信手段で得られ
た超音波断層像を基に穿刺針による処置を行うものであ
る。2. Description of the Related Art Conventionally, an ultrasonic transmitting / receiving means, an outlet for a puncture needle, and an observation optical window for a puncture needle are arranged at a distal end portion of an endoscope to diagnose or treat a lesion in a living body. Performing endoscopes are known. For example, Japanese Patent Application No. 63-25296
In the endoscope disclosed in Japanese Patent Application Publication No. 1 (1993) -1995, the ultrasonic transmission / reception means is attached to the side, the outlet is disposed closer to the operation unit than the ultrasonic transmission / reception means, and the observation optical window Is located at a position shifted laterally from the diagnostic center line of the ultrasonic transmission / reception means, and based on the ultrasonic tomographic image obtained by the ultrasonic transmission / reception means while visually observing the body wall and the puncture needle through the observation optical window. Is performed with a puncture needle.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、特願昭
６３−２５２９６１号公報に開示された内視鏡は、観察
光学窓から観察される像中心に対して、超音波断層像の
中心と穿刺針の導出方向とがずれているので、穿刺針を
斜め方向から観察しながら処置を行わなければならな
い。従って、穿刺針による処置が難しいという欠点があ
る。However, the endoscope disclosed in Japanese Patent Application No. 63-252961 has a structure in which the center of the ultrasonic tomographic image and the puncture needle are positioned with respect to the center of the image observed through the observation optical window. Therefore, the treatment must be performed while observing the puncture needle from an oblique direction. Therefore, there is a disadvantage that the treatment with the puncture needle is difficult.
【０００４】本発明はこのような事情に鑑みてなされた
もので、穿刺針による処置を正確に行い易い内視鏡を提
供することを目的とする。[0004] The present invention has been made in view of such circumstances, and an object of the present invention is to provide an endoscope that can easily perform treatment with a puncture needle accurately.
【０００５】[0005]
【課題を解決するための手段】本発明は、前記目的を達
成するために、超音波送受信手段と、この超音波送受信
手段による被検査方向に穿刺針を穿設自在に導出する導
出口と、この導出口から導出された穿刺針を観察する観
察光学窓と、を生体挿入部の先端構成部に備えた内視鏡
に於いて、前記先端構成部の一部に細径部を構成し、先
端構成部の先端から内視鏡の手元操作部に向けて前記超
音波送受信手段、観察光学窓、導出口の順で生体挿入部
の長手方向の同一線上に配置し、前記超音波送受信手段
及び観察光学窓を先端構成部の細径部に配置し、前記導
出口を細径部と先端構成部の外周部との連接部に開口し
たことを特徴としている。In order to achieve the above-mentioned object, the present invention provides an ultrasonic transmitting / receiving means, and an outlet for piercing a puncture needle in a direction to be inspected by the ultrasonic transmitting / receiving means, An observation optical window for observing the puncture needle led out from the outlet, and an endoscope provided at the distal end component of the living body insertion portion, wherein a small diameter portion is configured as a part of the distal end component, The ultrasonic transmitting / receiving means, the observation optical window, and the exit port are arranged on the same line in the longitudinal direction of the living body insertion section in the order of the distal end from the distal end of the distal end component toward the hand operating section of the endoscope, The observation optical window is arranged at a small diameter portion of the distal end component, and the outlet is opened at a connecting portion between the small diameter portion and the outer peripheral portion of the distal end component.
【０００６】[0006]
【作用】本発明によれば、超音波送受信手段、導出口、
及び観察光学窓を生体挿入部の長手方向の同一線上に配
置しているので、観察光学窓から観察される像中心に、
超音波断層像の中心と穿刺針の導出方向とが一致する。
これにより、穿刺針を正面から目視観察できるので、穿
刺針による処置が正確に行い易くなる。According to the present invention, an ultrasonic transmitting / receiving means, an outlet,
And since the observation optical window is arranged on the same line in the longitudinal direction of the living body insertion portion, the center of the image observed from the observation optical window,
The center of the ultrasonic tomographic image coincides with the leading direction of the puncture needle.
Thus, the puncture needle can be visually observed from the front, so that the treatment with the puncture needle can be easily performed accurately.
【０００７】[0007]
【実施例】以下添付図面に従って本発明に係る内視鏡の
好ましい実施例を詳説する。図１は本発明に係る内視鏡
１０の実施例を示す全体図である。この内視鏡１０は、
手元操作部１２に、生体腔内に挿入される細長状の挿入
部１４が接続されて、この挿入部１４の先端部には先端
構成部１６が取り付けられている。また、前記手元操作
部１２には、図示しない光源装置に接続させるユニバー
サルコード１８が取り付けられている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of an endoscope according to the present invention will be described below in detail with reference to the accompanying drawings. FIG. 1 is an overall view showing an embodiment of an endoscope 10 according to the present invention. This endoscope 10
An elongated insertion portion 14 to be inserted into a living body cavity is connected to the hand operation portion 12, and a distal end configuration portion 16 is attached to a distal end portion of the insertion portion 14. Further, a universal cord 18 for connecting to a light source device (not shown) is attached to the hand operation unit 12.
【０００８】前記先端構成部１６には図２、図３に示す
ように、側面方向に超音波送受信面２０ａを向けた超音
波振動子２０が装着されている。前記超音波振動子２０
は、挿入部１４の軸線方向にスキャン方向をもつ電子走
査形の振動子である。また、この超音波振動子２０は、
挿入部１４内に挿通された図示しない信号ケーブルを介
して超音波送受信器に接続されている。この超音波送受
信器は、超音波振動子２０で得られた体腔壁下の断層像
を表示するディスプレイに接続されている。As shown in FIGS. 2 and 3, an ultrasonic transducer 20 having an ultrasonic transmitting / receiving surface 20a directed sideways is mounted on the distal end component 16. The ultrasonic transducer 20
Is an electronic scanning type vibrator having a scanning direction in the axial direction of the insertion section 14. Also, this ultrasonic vibrator 20
It is connected to an ultrasonic transceiver via a signal cable (not shown) inserted into the insertion section 14. This ultrasonic transceiver is connected to a display that displays a tomographic image below the body cavity wall obtained by the ultrasonic transducer 20.
【０００９】前記先端構成部１６には、観察光学窓２２
が配置される。この観察光学窓２２は、前記超音波振動
子２０よりも手元操作部１２側に配置されると共に、そ
の中心２２ａが前記超音波振動子２０の挿入部長手方向
に於ける中心軸線２３上に位置されている。また、観察
光学窓２２は、超音波振動子２０の被検査方向に視野を
有すると共に、後述する導出口２４から導出される穿刺
針２６を視野内に撮らえることができる位置に配置され
ている。尚、観察光学窓２２の両側には照明ライト２
８、２８が配置されている。An observation optical window 22 is provided at the distal end portion 16.
Is arranged. The observation optical window 22 is disposed closer to the operation section 12 than the ultrasonic transducer 20, and the center 22 a thereof is positioned on a central axis 23 in the longitudinal direction of the insertion section of the ultrasonic transducer 20. Have been. The observation optical window 22 has a field of view in the inspection direction of the ultrasonic transducer 20 and is arranged at a position where a puncture needle 26 led out from a lead-out port 24 described later can be taken in the field of view. . The illumination light 2 is provided on both sides of the observation optical window 22.
8, 28 are arranged.
【００１０】前述した導出口２４は、観察光学窓２２よ
りも手元操作部１２側に配置されると共に、その中心２
４ａが超音波振動子２０と観察光学窓２２の中心軸線２
３上に位置されている。また、導出口２４には、生体内
の病変部の診断、或いは治療等を行う穿刺針２６が突出
自在に設けられる。この穿刺針２６は、図１に示した手
元操作部１２の操作ノブ３０を回動させることにより、
図示しない操作ワイヤを介してその導出量、及び傾斜角
度等が調節される。The outlet 24 described above is arranged closer to the operation unit 12 than the observation optical window 22 and the center 2 thereof.
4a is the central axis 2 of the ultrasonic transducer 20 and the observation optical window 22.
3 is located above. A puncture needle 26 for diagnosing or treating a lesion in a living body is provided at the outlet 24 so as to be freely protruded. The puncture needle 26 is turned by turning the operation knob 30 of the hand operation unit 12 shown in FIG.
The lead-out amount, the inclination angle, and the like are adjusted via an operation wire (not shown).
【００１１】次に、前記の如く構成された内視鏡１０の
作用について説明する。先ず、挿入部１４を体腔内に挿
入し、観察光学窓２２を通じて目視観察を行いながら、
先端構成部１６を体腔内の診断、治療部位に移動し、超
音波振動子２０の超音波送受信面２２ａを診断、治療部
位の表面に密着する。次に、超音波振動子２０を駆動し
て超音波振動子２０による超音波走査を行い、そして超
音波振動子２０で受信された超音波エコーに基づいて走
査範囲内における超音波断層像をディスプレイに表示す
る。Next, the operation of the endoscope 10 configured as described above will be described. First, the insertion portion 14 is inserted into a body cavity, and visually observed through the observation optical window 22,
The distal end component 16 is moved to a diagnosis / treatment site in the body cavity, and the ultrasonic transmission / reception surface 22a of the ultrasonic vibrator 20 is closely attached to the diagnosis / treatment surface. Next, the ultrasonic transducer 20 is driven to perform ultrasonic scanning by the ultrasonic transducer 20, and an ultrasonic tomographic image in a scanning range is displayed based on the ultrasonic echo received by the ultrasonic transducer 20. To be displayed.
【００１２】次いで、前記断層像中に診断、治療部位が
発見された際に、この部位の深さに応じた突出角度で穿
刺針２６が導出口２４から導出できるように操作ノブ３
０を操作して、穿刺針２６を体壁内に刺通する。そし
て、超音波断層像とこの断層像中に表示される穿刺針２
６の像とをディスプレイで観察しながら穿刺針２６を適
宜に移動して穿刺針２６による処置を開始する。Next, when a diagnosis or treatment site is found in the tomographic image, the operation knob 3 is provided so that the puncture needle 26 can be drawn out from the outlet 24 at a projection angle corresponding to the depth of the site.
0 is operated to puncture the puncture needle 26 into the body wall. Then, the ultrasonic tomographic image and the puncture needle 2 displayed in the tomographic image
The puncture needle 26 is appropriately moved while observing the image of No. 6 on the display, and the treatment with the puncture needle 26 is started.
【００１３】この時、本実施例では、超音波振動子２
０、観察光学窓２２、及び導出口２４の各々の中心が同
一軸線２３上に配置されているので、観察光学窓２２か
ら観察される像中心に、超音波断層像の中心と穿刺針２
６の導出方向とが一致している。これにより、本実施例
では、観察光学窓２２から穿刺針２６を正面から目視観
察できるので、穿刺針を斜め方向から観察する従来の内
視鏡と比較して、穿刺針２６による処置が正確に行い易
くなる。また、本実施例では、導出口２４を先端構成部
１６の細径部と外周部とを連接するテーパ面に開口した
ので、穿刺針２６の挿通性を向上させることができる。
これにより、本実施例では、穿刺針２６の操作性が向上
する。更に、本実施例では、観察光学窓２２を先端構成
部１６の細径部に配置したので、前記導出口２４から導
出された穿刺針２６が、その視野範囲に入り易くなる。At this time, in this embodiment, the ultrasonic vibrator 2
0, the center of the observation optical window 22 and the center of the outlet 24 are arranged on the same axis 23, so that the center of the ultrasonic tomographic image and the puncture needle 2 are positioned at the image center observed from the observation optical window 22.
6 coincides with the derived direction. Thus, in the present embodiment, the puncture needle 26 can be visually observed from the observation optical window 22 from the front, so that the treatment with the puncture needle 26 can be performed more accurately than a conventional endoscope that observes the puncture needle from an oblique direction. Easier to do. Further, in the present embodiment, since the outlet port 24 is opened on the tapered surface connecting the small diameter portion and the outer peripheral portion of the distal end component portion 16, the penetration of the puncture needle 26 can be improved.
Thereby, in this embodiment, the operability of the puncture needle 26 is improved. Further, in the present embodiment, the observation optical window 22 is disposed at the small diameter portion of the distal end component portion 16, so that the puncture needle 26 led out from the outlet 24 easily enters the visual field range.
【００１４】[0014]
【００１５】[0015]
【発明の効果】以上説明したように本発明に係る内視鏡
によれば、超音波送受信器、導出口、観察光学窓の順に
生体挿入部の長手方向の同一線上に配置して、観察光学
窓から観察される像中心に、超音波断層像の中心と穿刺
針の導出方向とを一致させたので、穿刺針を正面から目
視観察できる。これにより、穿刺針による処置が正確に
行い易くなる。また、本発明によれば、導出口を先端構
成部の細径部と外周部との連接部に開口することで、穿
刺針の挿通性を向上させたので、穿刺針の操作性を向上
させることができる。更に、本発明によれば、観察光学
窓を先端構成部の細径部に配置したので、前記導出口か
ら導出された穿刺針が、その視野範囲に入り易くなる。As described above, according to the endoscope of the present invention, the ultrasonic transceiver, the outlet, and the observation optical window are arranged on the same line in the longitudinal direction of the living body insertion section in this order, and the observation optical Since the center of the ultrasonic tomographic image and the leading direction of the puncture needle coincide with the center of the image observed from the window, the puncture needle can be visually observed from the front. This facilitates accurate treatment with the puncture needle. Further, according to the present invention, since the outlet is opened at the connecting portion between the small-diameter portion and the outer peripheral portion of the distal end component, the puncture needle insertability is improved, so that the operability of the puncture needle is improved. be able to. Furthermore, according to the present invention, since the observation optical window is arranged at the small diameter portion of the distal end component, the puncture needle led out from the outlet can easily enter the visual field range.
【図１】本発明に係る内視鏡の実施例を示す全体図FIG. 1 is an overall view showing an embodiment of an endoscope according to the present invention.
【図２】本発明に係る内視鏡の先端構成部を示す斜視図FIG. 2 is a perspective view showing a distal end component of the endoscope according to the present invention.
【図３】本発明に係る内視鏡の先端構成部の上面図FIG. 3 is a top view of a distal end portion of the endoscope according to the present invention.
１０…内視鏡 １２…手元操作部 １６…先端構成部 ２０…超音波振動子 ２２…観察光学窓 ２４…導出口 ２６…穿刺針 DESCRIPTION OF SYMBOLS 10 ... Endoscope 12 ... Hand operation part 16 ... Tip constituent part 20 ... Ultrasonic transducer 22 ... Observation optical window 24 ... Outlet 26 ... Puncture needle
Claims (1)
段による被検査方向に穿刺針を穿設自在に導出する導出
口と、この導出口から導出された穿刺針を観察する観察
光学窓と、を生体挿入部の先端構成部に備えた内視鏡に
於いて、前記先端構成部の一部に細径部を構成し、 先端構成部の先端から内視鏡の手元操作部に向けて前記
超音波送受信手段、観察光学窓、導出口の順で生体挿入
部の長手方向の同一線上に配置し、 前記超音波送受信手段及び観察光学窓を先端構成部の細
径部に配置し、 前記導出口を細径部と先端構成部の外周部との連接部に
開口した ことを特徴とする内視鏡。1. An ultrasonic transmitting / receiving means, an outlet for guiding a puncture needle in a direction to be inspected by the ultrasonic transmitting / receiving means, and an observation optical window for observing the puncture needle derived from the outlet. In the endoscope provided at the distal end component of the living body insertion portion , a small diameter portion is formed in a part of the distal end component, and the distal end of the distal end component is directed toward the hand operation unit of the endoscope. Said
Inserting a living body in the order of ultrasonic transmission / reception means, observation optical window, and outlet
The ultrasonic transmission / reception means and the observation optical window are arranged on the same line in the longitudinal direction of the
The outlet is located at the connecting part between the small diameter part and the outer periphery of the tip component.
An endoscope characterized by being open .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4258310A JP2785252B2 (en) | 1992-09-28 | 1992-09-28 | Endoscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4258310A JP2785252B2 (en) | 1992-09-28 | 1992-09-28 | Endoscope |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06105847A JPH06105847A (en) | 1994-04-19 |
| JP2785252B2 true JP2785252B2 (en) | 1998-08-13 |
Family
ID=17318478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4258310A Expired - Fee Related JP2785252B2 (en) | 1992-09-28 | 1992-09-28 | Endoscope |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2785252B2 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6390973B1 (en) | 1998-06-25 | 2002-05-21 | Asahi Kogaku Kogyo Kabushiki Kaisha | Endoscope for ultrasonic examination and surgical treatment associated thereto |
| JP2001046374A (en) * | 1999-08-04 | 2001-02-20 | Hitachi Medical Corp | Ultrasonic probe |
| JP4402648B2 (en) | 2005-12-16 | 2010-01-20 | オリンパス株式会社 | Intra-subject introduction device |
| US8758251B2 (en) | 2006-02-16 | 2014-06-24 | Fujifilm Corporation | Ultrasound endoscope |
| JP2007215731A (en) * | 2006-02-16 | 2007-08-30 | Fujinon Corp | Ultrasonic endoscope |
| JP5279871B2 (en) * | 2011-06-24 | 2013-09-04 | 富士フイルム株式会社 | Ultrasound endoscope |
| JP2018171258A (en) * | 2017-03-31 | 2018-11-08 | 富士フイルム株式会社 | Ultrasonic endoscope |
-
1992
- 1992-09-28 JP JP4258310A patent/JP2785252B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06105847A (en) | 1994-04-19 |
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