JP3462776B2 - The tip of the ultrasonic treatment endoscope - Google Patents
The tip of the ultrasonic treatment endoscopeInfo
- Publication number
- JP3462776B2 JP3462776B2 JP36383898A JP36383898A JP3462776B2 JP 3462776 B2 JP3462776 B2 JP 3462776B2 JP 36383898 A JP36383898 A JP 36383898A JP 36383898 A JP36383898 A JP 36383898A JP 3462776 B2 JP3462776 B2 JP 3462776B2
- Authority
- JP
- Japan
- Prior art keywords
- treatment
- ultrasonic
- tip
- projecting
- transducer array
- 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.)
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00064—Constructional details of the endoscope body
- A61B1/00071—Insertion part of the endoscope body
- A61B1/0008—Insertion part of the endoscope body characterised by distal tip features
- A61B1/00098—Deflecting means for inserted tools
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Biomedical Technology (AREA)
- Medical Informatics (AREA)
- Optics & Photonics (AREA)
- Pathology (AREA)
- Radiology & Medical Imaging (AREA)
- Biophysics (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Endoscopes (AREA)
- Ultra Sonic Daignosis Equipment (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、高レベルの内視
鏡的処置を行うことができるようにした処置用超音波内
視鏡の先端部に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a distal end portion of a treatment ultrasonic endoscope capable of performing a high level endoscopic treatment.
【０００２】[0002]
【従来の技術】超音波内視鏡は、体腔内の粘膜表面の光
学観察とその粘膜下の超音波断層像とを同時に得ること
ができるので、単なる検査器具としてだけでなく、治療
器具として非常に有用なものである。2. Description of the Related Art An ultrasonic endoscope can be used not only as an inspection instrument but also as a therapeutic instrument because it can simultaneously obtain an optical observation of the mucosal surface in a body cavity and an ultrasonic tomographic image of the submucosa. It is useful for.
【０００３】そこで従来の超音波内視鏡には、光学観察
を行うための部材と、超音波走査を行うための部材に加
えて、注射具等の処置具を突出させるための部材が併設
されている。Therefore, a conventional ultrasonic endoscope is provided with a member for performing optical observation, a member for performing ultrasonic scanning, and a member for projecting a treatment tool such as an injection tool. ing.
【０００４】[0004]
【発明が解決しようとする課題】内視鏡を用いた治療
（内視鏡的処置）を行う際には、二つの処置具を同時に
内視鏡から突出させることができるか否かによって、内
視鏡的処置の種類や適用範囲が大幅に相違する。したが
って、内視鏡的処置を行うための超音波内視鏡には、処
置具を突出させるためのチャンネルと突出口を二組設け
るのが望ましい。When performing treatment (endoscopic treatment) using an endoscope, it is necessary to determine whether or not two treatment tools can be projected from the endoscope at the same time. The types and scope of endoscopic procedures differ significantly. Therefore, it is desirable that an ultrasonic endoscope for performing an endoscopic treatment be provided with two sets of channels for projecting the treatment tool and projecting ports.
【０００５】しかし、一般の内視鏡と比べて超音波走査
のための部材が余分に配置されている超音波内視鏡に、
そのように複数の処置具を用いる部材を設けることは、
挿入部先端が著しく大きくなって患者に大きな苦痛を与
えることになるので、実現が困難であった。However, compared with a general endoscope, an ultrasonic endoscope in which members for ultrasonic scanning are additionally arranged is
Providing a member using a plurality of treatment tools in this way
This is difficult to achieve because the tip of the insertion part becomes extremely large and causes great pain to the patient.
【０００６】そこで本発明は、挿入部先端が比較的大型
にならずに、二つの処置具を同時に突出させて高レベル
の内視鏡的処置を行うことができる処置用超音波内視鏡
の先端部を提供することを目的とする。Therefore, the present invention is directed to an ultrasonic endoscope for treatment in which two treatment tools can be projected at the same time to perform a high-level endoscopic treatment without the tip of the insertion portion becoming relatively large. It is intended to provide a tip.
【０００７】[0007]
【課題を解決するための手段】上記の目的を達成するた
め、本発明の処置用超音波内視鏡の先端部は、ラジアル
走査を行うための環状の超音波振動子アレイが挿入部先
端に軸線周りに配置され、第１と第２の処置具挿通チャ
ンネルに通された処置具の先端部分を各々突出させるた
めの第１と第２の処置具突出口が、上記超音波振動子ア
レイを挟んでその前後に配置されていることを特徴とす
る。To achieve the above object, the distal end portion of the ultrasonic treatment endoscope according to the present invention has an annular ultrasonic transducer array for performing radial scanning at the distal end of the insertion portion. First and second treatment tool projecting ports, which are arranged around the axis and project the tip portions of the treatment tools passed through the first and second treatment tool insertion channels, respectively, are provided with the ultrasonic transducer array. It is characterized by being placed in front of and behind it.
【０００８】なお、上記各処置具突出口から突出される
処置具の突出方向を遠隔操作によって調整するための処
置具起上片が、上記各処置具突出口内の少なくとも一方
に配置されていてもよい。Even if a treatment tool raising piece for adjusting the projecting direction of the treatment tool projecting from each of the treatment tool projecting openings by remote operation is arranged in at least one of the treatment tool projecting openings. Good.
【０００９】また、上記第１と第２の処置具突出口の一
方と並んで光学観察窓が配置されていてもよく、上記超
音波振動子アレイ部分を囲んで、液体の充填によって膨
らませられるバルーンが取り付けられていてもよい。Further, an optical observation window may be arranged side by side with one of the first and second treatment tool projecting ports, and a balloon which surrounds the ultrasonic transducer array portion and is inflated by liquid filling. May be attached.
【００１０】また、上記超音波振動子アレイが上記挿入
部先端の斜め前方に向けてラジアル走査するように配置
されていてもよい。Further, the ultrasonic transducer array may be arranged so as to perform radial scanning diagonally forward of the tip of the insertion portion.
【００１１】[0011]
【発明の実施の形態】図面を参照して本発明の実施の形
態を説明する。図３は、本発明の第１の実施の形態の超
音波内視鏡の先端部の平面図、図１はそのＩ−Ｉ断面
図、図２はII−II断面図である。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described with reference to the drawings. FIG. 3 is a plan view of the distal end portion of the ultrasonic endoscope according to the first embodiment of the present invention, FIG. 1 is its I-I sectional view, and FIG. 2 is II-II sectional view.
【００１２】挿入部１の先端に連結された先端部本体２
の中間部分には、ラジアル走査を行うための円環状の超
音波振動子アレイ５が配置されている。超音波振動子ア
レイ５は、先端部本体２の軸線２ａに対して傾けて配置
されている。その結果、超音波走査方向Ａは、先端部本
体２の軸線２ａに対して垂直ではなく斜め方向に向いて
いる。Tip body 2 connected to the tip of insertion section 1
An annular ultrasonic transducer array 5 for performing radial scanning is arranged in the middle part of the. The ultrasonic transducer array 5 is arranged so as to be tilted with respect to the axis 2a of the tip body 2. As a result, the ultrasonic scanning direction A is not perpendicular to the axis 2a of the tip body 2 but is oblique.
【００１３】超音波振動子アレイ５は、円筒状に配置さ
れた超音波振動子を放射状に多数に分割して、それらが
超音波の発受信を順次行うように設けられており、いわ
ゆるラジアル走査による超音波走査が行われる。The ultrasonic transducer array 5 is provided so that a plurality of ultrasonic transducers arranged in a cylindrical shape are radially divided and the ultrasonic transducers sequentially transmit and receive ultrasonic waves, so-called radial scanning. Ultrasonic scanning is performed.
【００１４】超音波振動子アレイ５の表面はその配置上
から先端部本体２の表面より少し凹んでいるので、その
凹み部分には超音波がよく通過する例えばポリメチルペ
ンテン６等が充填されている。Since the surface of the ultrasonic transducer array 5 is slightly recessed from the surface of the tip end main body 2 due to its arrangement, the recessed portion is filled with, for example, polymethylpentene 6 which allows ultrasonic waves to pass therethrough. There is.
【００１５】図３に示されるように、先端部本体２の超
音波振動子アレイ５の後側の側面には、光学観察窓３と
第１の処置具突出口４とが軸線をはさんで並んで配置さ
れており、超音波振動子アレイ５の先側の側面には、照
明窓２３と第２の処置具突出口２４とが軸線をはさんで
並んで配置されている。As shown in FIG. 3, the optical observation window 3 and the first treatment tool projecting port 4 are arranged on the rear side surface of the ultrasonic body array 5 of the tip end main body 2 with the axis line therebetween. The illumination window 23 and the second treatment tool projecting opening 24 are arranged side by side on the axis line on the side surface on the front side of the ultrasonic transducer array 5.
【００１６】それらは、超音波走査方向Ａが斜め前方に
向いている位置の超音波振動子アレイ５の前後位置に配
置されており、図２に示されるように、観察光軸Ｂは、
超音波走査方向Ａと近似する斜め前方を向いている。即
ち、観察光学系は前方斜視型である。They are arranged at the front and rear positions of the ultrasonic transducer array 5 at a position where the ultrasonic scanning direction A faces obliquely forward. As shown in FIG. 2, the observation optical axis B is
It faces diagonally forward, which is similar to the ultrasonic scanning direction A. That is, the observation optical system is a front perspective type.
【００１７】光学観察窓３の内側には、図２に示される
ように、プリズムとレンズを組み合わせた対物光学系７
が配置されており、その対物光学系７による被写体の結
像位置に固体撮像素子８の撮像面が配置されている。９
は信号ケーブルである。なお、固体撮像素子８に代えて
イメージガイドファイババンドルを用いてもよい。Inside the optical observation window 3, as shown in FIG. 2, an objective optical system 7 including a prism and a lens is combined.
Is arranged, and the image pickup surface of the solid-state image pickup device 8 is arranged at the image forming position of the object by the objective optical system 7. 9
Is a signal cable. An image guide fiber bundle may be used instead of the solid-state image sensor 8.
【００１８】また、照明窓２３の内側には、被写体を照
明するためのライトガイドファイババンドル２９の射出
端が配置されている。なお、観察窓３と照明窓２３の配
置を入れ換えてもよい。Inside the illumination window 23, the exit end of the light guide fiber bundle 29 for illuminating the subject is arranged. The observation window 3 and the illumination window 23 may be replaced with each other.
【００１９】各処置具突出口４，２４内には、図１に示
されるように、突出される処置具１００，２００の先端
部分の突出方向を調整するための処置具起上片１１，２
１が、支軸１２，２２を中心に揺動自在に配置されてお
り、その奥には、挿入部１内に全長にわたって挿通配置
された第１と第２の処置具挿通チャンネル１４，３４の
先端部分が接続されている。As shown in FIG. 1, in each of the treatment tool projecting ports 4 and 24, the treatment tool raising pieces 11 and 2 for adjusting the projecting direction of the distal end portion of the projecting treatment tools 100 and 200.
1 is arranged so as to be swingable around the support shafts 12 and 22, and the first and second treatment tool insertion channels 14 and 34, which are inserted and arranged in the insertion portion 1 over the entire length, are arranged in the rear thereof. The tip is connected.
【００２０】各処置具起上片１１，２１は、挿入部１の
手元側端部に連結された操作部（図示せず）からの遠隔
操作によって進退操作される操作ワイヤ１３，３３によ
って揺動され、それによって、各処置具挿通チャンネル
１４，３４内に挿通された処置具１００，２００の先端
部分の突出方向が変化する。Each of the treatment instrument raising pieces 11, 21 is swung by the operation wires 13, 33 which are operated by a remote operation from an operation section (not shown) connected to the proximal end of the insertion section 1. As a result, the protruding direction of the distal end portion of the treatment instrument 100, 200 inserted into each treatment instrument insertion channel 14, 34 changes.
【００２１】なお、第２の処置具挿通チャンネル２４、
操作ワイヤ３３、ライトガイドファイババンドル２９等
は、超音波振動子アレイ５の内側の空間を通過する状態
に配置されており、先端部本体がコンパクトに小型に形
成されている。The second treatment tool insertion channel 24,
The operation wire 33, the light guide fiber bundle 29, and the like are arranged so as to pass through the space inside the ultrasonic transducer array 5, and the tip end body is formed compact and small.
【００２２】このように構成された実施の形態の処置用
超音波内視鏡を用いると、例えば図４に示されるよう
に、二つの処置具突出口４，２４から、パイプ状穿刺針
１００と把持鉗子２００を突出させて損傷粘膜に突き刺
し、穿刺針１００をガイドにして送り出された糸３００
を粘膜の裏側において把持鉗子２００で掴んだ後、図５
に示されるように穿刺針１００と把持鉗子２００を引き
戻すことにより、損傷粘膜を縫合する等の高レベルの内
視鏡的処置を行うことができる。Using the ultrasonic treatment endoscope of the embodiment configured as described above, for example, as shown in FIG. The thread 300 that is ejected with the grasping forceps 200 protruding and piercing the damaged mucous membrane and using the puncture needle 100 as a guide.
5 is grasped by the grasping forceps 200 on the back side of the mucous membrane, and
By pulling back the puncture needle 100 and the grasping forceps 200 as shown in FIG. 5, a high level endoscopic treatment such as suturing a damaged mucous membrane can be performed.
【００２３】[0023]
【００２４】[0024]
【００２５】[0025]
【００２６】[0026]
【発明の効果】本発明によれば、ラジアル走査を行うた
めの環状の超音波振動子アレイを挿入部先端の軸線周り
に配置し、第１と第２の処置具挿通チャンネルに通され
た処置具の先端部分を各々突出させるための第１と第２
の処置具突出口を超音波振動子アレイを挟んでその前後
に配置したことにより、挿入部先端が比較的大型になら
ずに、二つの処置具を同時に突出させて高レベルの内視
鏡的処置を行うことができる。According to the present invention, an annular ultrasonic transducer array for performing radial scanning is arranged around the axis of the tip of the insertion portion, and the treatment is passed through the first and second treatment instrument insertion channels. First and second for projecting the tip portion of the tool, respectively
By arranging the treatment tool projecting ports in front of and behind the ultrasonic transducer array, the tip of the insertion part does not become relatively large, and two treatment tools can be projected at the same time to achieve a high-level endoscopic effect. Treatment can be performed.
【図１】本発明の第１の実施の形態の処置用超音波内視
鏡の先端部の図３におけるＩ−Ｉ断面図である。FIG. 1 is a cross-sectional view of the distal end portion of the treatment ultrasonic endoscope according to the first embodiment of the present invention taken along the line I-I in FIG. 3.
【図２】本発明の第１の実施の形態の処置用超音波内視
鏡の先端部の図３におけるII−II断面図である。FIG. 2 is a cross-sectional view taken along the line II-II in FIG. 3 of the distal end portion of the medical treatment endoscope according to the first embodiment of the present invention.
【図３】本発明の第１の実施の形態の処置用超音波内視
鏡の先端部の平面図である。FIG. 3 is a plan view of the distal end portion of the medical treatment endoscope according to the first embodiment of the present invention.
【図４】本発明の第１の実施の形態の処置用超音波内視
鏡を用いた内視鏡的処置の状態を示す略示図である。FIG. 4 is a schematic view showing a state of endoscopic treatment using the ultrasonic treatment endoscope according to the first embodiment of the present invention.
【図５】本発明の第１の実施の形態の処置用超音波内視
鏡を用いた内視鏡的処置の状態を示す略示図である。FIG. 5 is a schematic diagram showing a state of endoscopic treatment using the ultrasonic treatment endoscope according to the first embodiment of the present invention.
１ 挿入部 ２ 先端部本体 ３ 光学観察窓 ４，２４ 処置具突出口 ５ 超音波振動子アレイ １１，２１ 処置具起上片 １４，３４ 処置具挿通チャンネル １００，２００ 処置具 1 Insert 2 Tip body 3 Optical observation window 4,24 Treatment tool protruding port 5 Ultrasonic transducer array 11,21 Treatment tool raising piece 14,34 Treatment instrument insertion channel 100,200 treatment tool
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭63−130052（ＪＰ，Ａ) 特開 平１−300939（ＪＰ，Ａ) 特開 平１−300940（ＪＰ，Ａ) 特開 平２−265534（ＪＰ，Ａ) 特開 平２−286143（ＪＰ，Ａ) 特開 平４−279141（ＪＰ，Ａ) 特開 平５−269133（ＪＰ，Ａ) 特開 平７−227394（ＪＰ，Ａ) 特開 平８−126644（ＪＰ，Ａ) 特開 平８−140976（ＪＰ，Ａ) 特開 平８−154940（ＪＰ，Ａ) 特開 平９−234182（ＪＰ，Ａ) 実開 昭48−81689（ＪＰ，Ｕ) 実開 昭48−96790（ＪＰ，Ｕ) 特表 平５−505739（ＪＰ，Ａ) 特表 平７−505791（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) A61B 8/00 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP-A-63-130052 (JP, A) JP-A-1-300939 (JP, A) JP-A-1-300940 (JP, A) JP-A-2- 265534 (JP, A) JP 2-286143 (JP, A) JP 4-279141 (JP, A) JP 5-269133 (JP, A) JP 7-227394 (JP, A) JP-A-8-126644 (JP, A) JP-A-8-140976 (JP, A) JP-A-8-154940 (JP, A) JP-A-9-234182 (JP, A) Actual exploitation Sho-48-81689 (JP, U) Showa 48-96790 (JP, U) Special Table 5-505739 (JP, A) Special Table 7-505791 (JP, A) (58) Fields investigated (Int.Cl. 7) , DB name) A61B 8/00
Claims (3)
に、ラジアル走査を行うための環状の超音波振動子アレ
イが上記挿入部先端の表面から出っ張らないように上記
軸線方向に対して傾けて配置され、それによって上記挿
入部先端の表面と上記超音波振動子アレイの表面との間
に生じる凹みに超音波良伝導剤が充填されると共に、第
１と第２の処置具挿通チャンネルに通された処置具の先
端部分を各々突出させるための第１と第２の処置具突出
口が、上記超音波振動子アレイによる超音波走査方向が
斜め前方に向いている位置において上記超音波振動子ア
レイを挟んでその前後に配置されていることを特徴とす
る処置用超音波内視鏡の先端部。1. An annular ultrasonic transducer array for performing radial scanning is tilted with respect to the axial direction at an intermediate position of the tip of the insertion section having a straight axis so as not to project from the surface of the tip of the insertion section. Placed, and the above
Between the surface of the entry tip and the surface of the ultrasonic transducer array
First and second treatment tool projecting openings for filling the recesses formed in the upper part with an ultrasonic conductive agent and projecting the distal end portions of the treatment tools passed through the first and second treatment tool insertion channels, respectively. However, the ultrasonic endoscope for treatment is arranged in front of and behind the ultrasonic transducer array at a position where the ultrasonic scanning direction of the ultrasonic transducer array is directed obliquely forward. Tip of.
の突出方向を遠隔操作によって調整するための処置具起
上片が、上記各処置具突出口内の少なくとも一方に配置
されている請求項１記載の処置用超音波内視鏡の先端
部。2. A treatment instrument raising piece for remotely adjusting the projecting direction of the treatment instrument projected from each of the treatment instrument projecting ports is arranged in at least one of the treatment instrument projecting ports. Item 2. A distal end portion of the ultrasonic treatment endoscope according to Item 1.
んで光学観察窓が配置されている請求項１又は２記載の
処置用超音波内視鏡の先端部。3. The distal end portion of the treatment ultrasonic endoscope according to claim 1, wherein an optical observation window is arranged side by side with one of the first and second treatment tool projecting ports.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP36383898A JP3462776B2 (en) | 1998-12-22 | 1998-12-22 | The tip of the ultrasonic treatment endoscope |
| US09/466,918 US6338717B1 (en) | 1998-12-22 | 1999-12-20 | Tip of ultrasonic endoscope |
| DE19962209A DE19962209B4 (en) | 1998-12-22 | 1999-12-22 | Tip for an ultrasound endoscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP36383898A JP3462776B2 (en) | 1998-12-22 | 1998-12-22 | The tip of the ultrasonic treatment endoscope |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000185042A JP2000185042A (en) | 2000-07-04 |
| JP3462776B2 true JP3462776B2 (en) | 2003-11-05 |
Family
ID=18480323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP36383898A Expired - Fee Related JP3462776B2 (en) | 1998-12-22 | 1998-12-22 | The tip of the ultrasonic treatment endoscope |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3462776B2 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4594560B2 (en) * | 2001-07-23 | 2010-12-08 | オリンパス株式会社 | Endoscope |
| JP2006325780A (en) * | 2005-05-25 | 2006-12-07 | Pentax Corp | Distal end of ultrasonic endoscope |
| JP5006591B2 (en) * | 2006-07-26 | 2012-08-22 | Ｈｏｙａ株式会社 | Ultrasound endoscope |
| JP5153476B2 (en) | 2008-06-24 | 2013-02-27 | オリンパスメディカルシステムズ株式会社 | Endoscope device |
| JP2013233210A (en) * | 2012-05-07 | 2013-11-21 | Hoya Corp | Insertion part-distal end structure of ultrasonic endoscope |
| WO2017106720A1 (en) | 2015-12-18 | 2017-06-22 | Boston Scientific Scimed, Inc. | Introducer systems, devices and methods for heart valve reductions |
-
1998
- 1998-12-22 JP JP36383898A patent/JP3462776B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2000185042A (en) | 2000-07-04 |
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