JP2007135881A - Treating tool raising device of ultrasonic endoscope - Google Patents

Treating tool raising device of ultrasonic endoscope Download PDF

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JP2007135881A
JP2007135881A JP2005333879A JP2005333879A JP2007135881A JP 2007135881 A JP2007135881 A JP 2007135881A JP 2005333879 A JP2005333879 A JP 2005333879A JP 2005333879 A JP2005333879 A JP 2005333879A JP 2007135881 A JP2007135881 A JP 2007135881A
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permanent magnet
treatment instrument
distal end
raising piece
insertion portion
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JP4776010B2 (en
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Tetsuya Tarumoto
哲也 樽本
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Pentax Corp
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/08—Detecting organic movements or changes, e.g. tumours, cysts, swellings
    • A61B8/0833—Detecting organic movements or changes, e.g. tumours, cysts, swellings involving detecting or locating foreign bodies or organic structures
    • A61B8/0841—Detecting organic movements or changes, e.g. tumours, cysts, swellings involving detecting or locating foreign bodies or organic structures for locating instruments
    • 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
    • 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
    • A61B1/012—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 characterised by internal passages or accessories therefor
    • A61B1/018—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 characterised by internal passages or accessories therefor for receiving instruments

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Abstract

<P>PROBLEM TO BE SOLVED: To provide a treating tool raising device of an ultrasonic endoscope which can be constituted so that a member for driving a treating tool raising piece is not contaminated by mucosal fluid in the body in an ultrasonic endoscope inspection and can obtain a driving force for sufficiently raising even a firm treater. <P>SOLUTION: A first permanent magnet 17 is attached to the treating tool raising piece 15, a second permanent magnet 18 is attached to the distal end of an operation wire 7 operated forward and backward from the proximal end side of an insertion part 1, and the part is movably sealed inside the distal end part 3 of the insertion part 1. One magnetic pole of the first permanent magnet 17 and the magnetic pole of the second permanent magnet 18 are arranged facing each other across a partition wall 19. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

この発明は、被検部の断層像を得るための超音波走査部と被検部の表面の光学観察像を得るための光学観察部とが挿入部の先端部分に併設された超音波内視鏡の処置具起上装置に関する。   The present invention provides an ultrasonic endoscope in which an ultrasonic scanning unit for obtaining a tomographic image of a portion to be examined and an optical observation portion for obtaining an optical observation image of the surface of the portion to be examined are provided at the distal end portion of the insertion portion. The present invention relates to a mirror treatment tool raising device.

超音波内視鏡は一般に、光学観察部で得られる光学観察像を観察しながら挿入部の先端を体内の目標部位に誘導して、目標部位に達したらそこで超音波プローブにより臓器等の超音波断層像を得るという使い方がされるが、さらに、穿刺針等のような処置具を適切に誘導するために、挿入部の先端部分に処置具起上片が設けられている（例えば、特許文献１）。
特開平９−８４７４７ In general, an ultrasonic endoscope guides the distal end of an insertion portion to a target site in the body while observing an optical observation image obtained by an optical observation unit, and when the target site is reached, an ultrasonic probe such as an organ In order to properly guide a treatment instrument such as a puncture needle, a treatment tool raising piece is provided at the distal end portion of the insertion portion (for example, Patent Documents). 1).
JP-A-9-84747

上述のような従来の超音波内視鏡において、処置具起上片の操作は挿入部内に挿通された操作ワイヤを介して行われるが、そのような操作ワイヤは超音波内視鏡検査の際に体内粘液等のような汚液が浸入して汚染されるので、超音波内視鏡検査終了後に十分な洗浄消毒を行う必要があり保守管理が非常に面倒である。   In the conventional ultrasonic endoscope as described above, the operation tool raising piece is operated through an operation wire inserted into the insertion portion. Such an operation wire is used for ultrasonic endoscopy. Since semen such as mucus in the body enters and is contaminated, sufficient cleaning and disinfection is necessary after the ultrasonic endoscopy is completed, and maintenance management is very troublesome.

そこで、例えば処置具起上片を鉄等の磁性体で形成して、その処置具起上片に対向する挿入部の先端部分内に永久磁石を可動に封止し、挿入部の基端に連結された操作部側から操作ワイヤを進退操作して永久磁石を移動させることにより処置具起上片が動作するようにすることが考えられる。   Therefore, for example, the treatment tool raising piece is formed of a magnetic material such as iron, and the permanent magnet is movably sealed in the distal end portion of the insertion portion facing the treatment tool raising piece, and is attached to the proximal end of the insertion portion. It is conceivable that the treatment tool raising piece operates by moving the permanent magnet by moving the operation wire forward and backward from the connected operation unit side.

しかし、鉄等の磁性体で形成された処置具起上片を、挿入部の先端部分を構成する隔壁を間に挟んで永久磁石の吸引力で引き付けて駆動する構造では、処置具がカテーテル等のような腰の弱いものの場合には問題がないが、密着巻きのコイルパイプ等がシースとして用いられた腰の強いものの場合には、磁力による吸引力が不足して処置具起上片が永久磁石の動きに追随せず、処置具を起上させることができない場合がある。   However, in the structure in which the treatment instrument raising piece formed of a magnetic material such as iron is driven by being attracted by the attractive force of a permanent magnet with the partition wall constituting the distal end portion of the insertion portion interposed therebetween, the treatment instrument is a catheter or the like However, in the case of a strong waist with a tightly wound coil pipe or the like used as a sheath, there is not enough suction force due to magnetic force, and the treatment instrument raising piece is permanent. The treatment tool may not be raised without following the movement of the magnet.

そこで本発明は、処置具起上片を駆動するための部材が超音波内視鏡検査の際に体内粘液等で汚染されないように構成することができ、しかも腰の強い処置具であっても十分に起上させる駆動力を得ることができる超音波内視鏡の処置具起上装置を提供することを目的とする。   Therefore, the present invention can be configured so that the member for driving the treatment instrument raising piece is not contaminated with mucus in the body at the time of ultrasonic endoscopy, and even a treatment instrument having a strong waist. It is an object of the present invention to provide a treatment instrument raising apparatus for an ultrasonic endoscope capable of obtaining a driving force for raising sufficiently.

上記の目的を達成するため、本発明の超音波内視鏡の処置具起上装置は、被検部の超音波断層像を得るための超音波走査部と被検部の表面の光学観察像を得るための光学観察部とが併設された超音波内視鏡の挿入部の先端部分に、挿入部内を通過した処置具の突出方向を挿入部の基端側からの遠隔操作により制御するための処置具起上片が可動に設けられた超音波内視鏡の処置具起上装置において、処置具起上片に第１の永久磁石を取り付けると共に、挿入部の基端側から進退操作される操作ワイヤの先端に第２の永久磁石を取り付けてその部分を挿入部の先端部分内に可動に封止して、第１の永久磁石の一方の磁極と第２の永久磁石の他方の磁極とを隔壁を間に挟んで対向配置し、操作ワイヤで第２の永久磁石が移動操作されると、第１の永久磁石が第２の永久磁石に追随して移動することにより処置具起上片が動作して処置具の突出方向が変化するようにしたものである。   In order to achieve the above object, a treatment instrument raising apparatus for an ultrasonic endoscope according to the present invention includes an ultrasonic scanning unit for obtaining an ultrasonic tomographic image of a test part and an optical observation image of the surface of the test part. To control the protruding direction of the treatment tool that has passed through the insertion portion by remote control from the proximal end side of the insertion portion at the distal end portion of the insertion portion of the ultrasonic endoscope provided with an optical observation portion for obtaining In the treatment instrument raising apparatus for an ultrasonic endoscope in which the treatment tool raising piece is movably provided, a first permanent magnet is attached to the treatment tool raising piece, and the treatment tool raising piece is moved back and forth from the proximal end side of the insertion portion. A second permanent magnet is attached to the distal end of the operation wire and the portion is movably sealed in the distal end portion of the insertion portion, and one magnetic pole of the first permanent magnet and the other magnetic pole of the second permanent magnet When the second permanent magnet is moved and operated by the operation wire, the first Permanent magnet is that as the protruding direction of the treatment instrument elevator upper piece is operated treatment instrument by moving to follow the second permanent magnet is changed.

なお、処置具起上片が挿入部の先端部分に回動自在に支持されていて、第１の永久磁石がその磁極中心線を処置具起上片の回転中心軸に対して平行方向に向けて処置具起上片に取り付けられていてもよい。   The treatment instrument raising piece is rotatably supported at the distal end portion of the insertion portion, and the first permanent magnet directs its magnetic pole center line in a direction parallel to the rotation center axis of the treatment instrument raising piece. It may be attached to the treatment tool raising piece.

また、挿入部の先端部分に、処置具起上片の回動中心軸を中心とする円弧状に第２の永久磁石を案内する案内溝が形成されていてもよい。   In addition, a guide groove that guides the second permanent magnet in an arc shape around the rotation center axis of the treatment instrument raising piece may be formed at the distal end portion of the insertion portion.

本発明によれば、操作ワイヤとその先端の第２の永久磁石とが挿入部の先端部分内に可動に封止されているので、操作ワイヤが超音波内視鏡検査の際に体内粘液等で汚染されず、しかも、処置具起上片に第１の永久磁石が取り付けられて両永久磁石が隔壁を間に挟んであい対向して配置されているので、腰の強い処置具であっても処置具起上片により十分に起上させる駆動力を得ることができる。   According to the present invention, the operation wire and the second permanent magnet at the distal end thereof are movably sealed in the distal end portion of the insertion portion, so that the operation wire is mucous in the body during ultrasonic endoscopy. In addition, since the first permanent magnet is attached to the treatment tool raising piece and the two permanent magnets are arranged opposite each other with the partition wall interposed therebetween, A driving force for sufficiently raising the treatment tool raising piece can be obtained.

被検部の超音波断層像を得るための超音波走査部と被検部の表面の光学観察像を得るための光学観察部とが併設された超音波内視鏡の挿入部の先端部分に、挿入部内を通過した処置具の突出方向を挿入部の基端側からの遠隔操作により制御するための処置具起上片が可動に設けられた超音波内視鏡の処置具起上装置において、処置具起上片に第１の永久磁石を取り付けると共に、挿入部の基端側から進退操作される操作ワイヤの先端に第２の永久磁石を取り付けてその部分を挿入部の先端部分内に可動に封止して、第１の永久磁石の一方の磁極と第２の永久磁石の他方の磁極とを隔壁を間に挟んで対向配置し、操作ワイヤで第２の永久磁石が移動操作されると、第１の永久磁石が第２の永久磁石に追随して移動することにより処置具起上片が動作して処置具の突出方向が変化するようにする。   An ultrasonic scanning unit for obtaining an ultrasonic tomographic image of the examination part and an optical observation part for obtaining an optical observation image of the surface of the examination part are provided at the distal end portion of the insertion part of the ultrasonic endoscope. In a treatment instrument raising apparatus for an ultrasonic endoscope in which a treatment instrument raising piece for controlling the protruding direction of the treatment instrument that has passed through the insertion portion by remote operation from the proximal end side of the insertion portion is movably provided The first permanent magnet is attached to the treatment instrument raising piece, and the second permanent magnet is attached to the distal end of the operation wire that is advanced and retracted from the proximal end side of the insertion portion, and the portion is placed in the distal end portion of the insertion portion. Sealed movably, one magnetic pole of the first permanent magnet and the other magnetic pole of the second permanent magnet are arranged to face each other with a partition wall in between, and the second permanent magnet is moved by an operation wire. Then, the first permanent magnet moves following the second permanent magnet, so that the treatment instrument raising piece is Projecting direction of the work to the treatment instrument is to be changed.

図面を参照して本発明の実施例を説明する。
図４は超音波内視鏡の全体構成を示しており、可撓性の挿入部１の先端部分に遠隔操作により屈曲するように湾曲部２が設けられ、その湾曲部２の先端に先端部本体３が連結されている。 Embodiments of the present invention will be described with reference to the drawings.
FIG. 4 shows the overall configuration of the ultrasonic endoscope. A bending portion 2 is provided at the distal end portion of the flexible insertion portion 1 so as to be bent by remote operation, and the distal end portion is provided at the distal end of the bending portion 2. The main body 3 is connected.

挿入部１の最先端部分である先端部本体３の先側半部は被検部の超音波断層像を得るための超音波走査部３ａになっていて、先端部本体３の後側半部は被検部の表面の光学観察像を得るための光学観察部３ｂになっている。Ｕは超音波走査部３ａによる超音波走査範囲、Ｖは光学観察部３ｂによる光学観察範囲である。   The front half of the distal end main body 3 which is the most distal portion of the insertion portion 1 is an ultrasonic scanning unit 3a for obtaining an ultrasonic tomographic image of the test portion, and the rear half of the distal end main body 3 Is an optical observation part 3b for obtaining an optical observation image of the surface of the test part. U is an ultrasonic scanning range by the ultrasonic scanning unit 3a, and V is an optical observation range by the optical observation unit 3b.

挿入部１内には、処置具類を通すための処置具挿通チャンネル４が全長にわたって挿通配置されていて、その入口は挿入部１の基端に連結された操作部５と挿入部１との連結部付近に配置され、出口は先端部本体３の光学観察部３ｂに設けられている。Ａは、先端部本体３からの処置具の突出方向である。   A treatment instrument insertion channel 4 for allowing treatment instruments to pass therethrough is disposed through the entire length in the insertion section 1, and the inlet of the operation section 5 connected to the proximal end of the insertion section 1 and the insertion section 1 is inserted. Arranged in the vicinity of the connecting portion, the outlet is provided in the optical observation portion 3 b of the tip body 3. A is a protruding direction of the treatment instrument from the distal end main body 3.

そのような処置具挿通チャンネル４の出口部分には、処置具挿通チャンネル４内を通過した処置具の突出方向を制御するための後述する処置具起上片が配置され、処置具起上片の動作を遠隔操作するための操作ワイヤ７が挿入部１内に全長にわたって挿通配置されている。操作ワイヤ７は、操作部５に配置された起上片操作レバー６によって進退操作される。８は、湾曲部２の屈曲操作を行うための湾曲操作ノブである。   At the exit portion of the treatment instrument insertion channel 4, a treatment instrument raising piece to be described later for controlling the protruding direction of the treatment instrument that has passed through the treatment instrument insertion channel 4 is disposed. An operation wire 7 for remotely controlling the operation is inserted through the entire length of the insertion portion 1. The operation wire 7 is advanced and retracted by a raising piece operation lever 6 disposed in the operation unit 5. Reference numeral 8 denotes a bending operation knob for performing a bending operation of the bending portion 2.

図５は挿入部１の先端部分の斜視図であり、１１は、超音波走査部３ａの側面に配置されたコンベックスタイプの超音波プローブである。ただし、本発明はどのようなタイプの超音波プローブが用いられた超音波内視鏡にも適用することができる。   FIG. 5 is a perspective view of the distal end portion of the insertion portion 1, and 11 is a convex type ultrasonic probe disposed on the side surface of the ultrasonic scanning portion 3a. However, the present invention can be applied to an ultrasonic endoscope using any type of ultrasonic probe.

光学観察部３ｂの先端部分に形成された斜面には光学観察のための光像を取り入れる観察窓１２と照明光を放射する照明窓１３とが並んで配置されており、観察窓１２内には対物光学系等が配置され、照明窓１３内には照明用ライトガイドファイババンドルの射出端部が配置されている。   An observation window 12 for taking in an optical image for optical observation and an illumination window 13 for radiating illumination light are arranged side by side on the inclined surface formed at the tip of the optical observation unit 3b. An objective optical system and the like are arranged, and an emission end portion of an illumination light guide fiber bundle is arranged in the illumination window 13.

１４は、処置具挿通チャンネル４の出口にあたる処置具突出口であり、観察窓１２と並んで光学観察部３ｂの斜面に形成されている。そして、例えば内視鏡用注射具等のような処置具５０が処置具挿通チャンネル４に通された時にその先端部分の突出方向を矢印Ｂで示されるように制御するための処置具起上片１５が、処置具突出口１４内に配置されている。   Reference numeral 14 denotes a treatment instrument protrusion corresponding to the exit of the treatment instrument insertion channel 4 and is formed on the inclined surface of the optical observation unit 3 b along with the observation window 12. For example, when a treatment instrument 50 such as an endoscope injection instrument is passed through the treatment instrument insertion channel 4, a treatment instrument raising piece for controlling the protruding direction of the distal end portion as indicated by an arrow B is shown. 15 is disposed in the treatment instrument protrusion 14.

処置具起上片１５は、その部分の側面断面を図示する図２と図３に示されるように、先端部本体３に取り付けられた支軸１６を中心に回動することができるように処置具突出口１４内に配置されていて、処置具が沿うための処置具案内面１５ａが上面側に形成されている。   The treatment tool raising piece 15 is treated so that it can be rotated around a support shaft 16 attached to the distal end portion body 3 as shown in FIGS. A treatment instrument guide surface 15a that is disposed in the instrument projection port 14 and that the treatment instrument follows is formed on the upper surface side.

処置具起上片１５には、平面断面を図示する図１にも示されるように第１の永久磁石１７が固着されている。第１の永久磁石１７は、磁極中心線（即ち、Ｓ極の中心とＮ極の中心とを結ぶ線）が支軸１６と平行になる向きに、処置具起上片１５を側方に貫通する状態に処置具起上片１５に取り付けられて固着されている。   A first permanent magnet 17 is fixed to the treatment instrument raising piece 15 as shown in FIG. The first permanent magnet 17 penetrates the treatment instrument raising piece 15 sideways so that the magnetic pole center line (that is, the line connecting the center of the S pole and the center of the N pole) is parallel to the support shaft 16. The treatment tool raising piece 15 is attached and fixed in a state to be performed.

そして、操作ワイヤ７の先端には第２の永久磁石１８が固着されている。第２の永久磁石１８は、磁極中心線が第１の永久磁石１７の磁極中心線と略真っ直ぐになる向きに配置されて、第２の永久磁石１８のＳ極が第１の永久磁石１７のＮ極と対向している。ただし、第２の永久磁石１８のＮ極が第１の永久磁石１７のＳ極と対向するように配置してもよい。   A second permanent magnet 18 is fixed to the tip of the operation wire 7. The second permanent magnet 18 is arranged so that the magnetic pole center line is substantially straight with the magnetic pole center line of the first permanent magnet 17, and the S pole of the second permanent magnet 18 is the first permanent magnet 17. Opposite the N pole. However, the N pole of the second permanent magnet 18 may be arranged to face the S pole of the first permanent magnet 17.

第２の永久磁石１８は、挿入部１が体内に挿入されたときに体内粘液等に触れないように先端部本体３内に可動に封止されており、第１の永久磁石１７と第２の永久磁石１８との間には先端部本体３を構成する隔壁１９が存在している。   The second permanent magnet 18 is movably sealed in the tip body 3 so as not to touch the mucus in the body when the insertion portion 1 is inserted into the body. A partition wall 19 constituting the tip body 3 is present between the permanent magnet 18 and the permanent magnet 18.

第２の永久磁石１８は、隔壁１９の内側に形成された案内溝２０内に係合して案内溝２０に案内される状態に配置されている。図６と図７はその案内溝２０部分の側面断面図であり、案内溝２０は支軸１６を中心とする円弧状に形成されている。   The second permanent magnet 18 is disposed in a state of being engaged with the guide groove 20 formed inside the partition wall 19 and guided by the guide groove 20. 6 and 7 are side cross-sectional views of the guide groove 20 portion, and the guide groove 20 is formed in an arc shape with the support shaft 16 as the center.

そして、操作ワイヤ７の進退によって第２の永久磁石１８が移動操作されると、図６及び図７に示されるように第２の永久磁石１８が案内溝２０に沿って移動し、第１の永久磁石１７が磁力により第２の永久磁石１８に追随して移動するので、処置具起上片１５が支軸１６を中心に回動する。その際に、第１の永久磁石１７と第２の永久磁石１８とは常にあい対向した位置関係を保つ。   Then, when the second permanent magnet 18 is moved by the advancement and retraction of the operation wire 7, the second permanent magnet 18 moves along the guide groove 20 as shown in FIGS. Since the permanent magnet 17 moves following the second permanent magnet 18 by the magnetic force, the treatment instrument raising piece 15 rotates about the support shaft 16. At that time, the first permanent magnet 17 and the second permanent magnet 18 always maintain a facing positional relationship.

このように構成された実施例の超音波内視鏡の処置具起上装置においては、図８に示されるように、処置具突出口１４から処置具５０の先端部分を突出させたら、操作部５において処置片操作レバー６を操作することにより、図９に示されるように処置具起上片１５を起上させて処置具５０の突出方向に任意に制御することができる。   In the ultrasonic endoscope treatment instrument raising apparatus of the embodiment configured as described above, as shown in FIG. 8, when the distal end portion of the treatment instrument 50 is projected from the treatment instrument protrusion 14, the operation unit By operating the treatment piece operation lever 6 at 5, the treatment tool raising piece 15 can be raised as shown in FIG. 9 and can be arbitrarily controlled in the protruding direction of the treatment tool 50.

そして、処置具起上片１５と操作ワイヤ７とは、第１の永久磁石１７と第２の永久磁石１８との吸引力によって強力に磁力結合しているので、処置具５０のシースの腰が強くても処置具起上片１５を確実に起上動作させることができ、また、操作ワイヤ７とその先端の第２の永久磁石１８は先端部本体３内に封止されているので、超音波内視鏡検査の際に体内粘液等で汚染されない。   The treatment instrument raising piece 15 and the operation wire 7 are strongly magnetically coupled by the attractive force of the first permanent magnet 17 and the second permanent magnet 18, so that the waist of the sheath of the treatment instrument 50 is Even if the treatment tool is strong, the treatment tool raising piece 15 can be surely raised, and the operation wire 7 and the second permanent magnet 18 at the distal end thereof are sealed in the distal end body 3. It is not contaminated with mucus in the body during sonic endoscopy.

本発明の実施例の超音波内視鏡の処置具起上装置の平面部分断面図である。It is a plane fragmentary sectional view of the treatment tool raising device of the ultrasonic endoscope of the embodiment of the present invention. 本発明の実施例の超音波内視鏡の処置具起上装置の側面部分断面図である。It is side surface fragmentary sectional view of the treatment tool raising apparatus of the ultrasonic endoscope of the Example of this invention. 本発明の実施例の超音波内視鏡の処置具起上装置の起上状態の側面部分断面図である。It is side surface fragmentary sectional view of the raising state of the treatment tool raising apparatus of the ultrasonic endoscope of the Example of this invention. 本発明の実施例の超音波内視鏡の全体構成を示す側面図である。1 is a side view showing an overall configuration of an ultrasonic endoscope according to an embodiment of the present invention. 本発明の実施例の超音波内視鏡の挿入部先端の斜視図である。It is a perspective view of the insertion part front-end | tip of the ultrasonic endoscope of the Example of this invention. 本発明の実施例の超音波内視鏡の処置具起上装置の案内溝部分の側面部分断面図である。It is side surface fragmentary sectional drawing of the guide groove part of the treatment tool raising apparatus of the ultrasonic endoscope of the Example of this invention. 本発明の実施例の超音波内視鏡の処置具起上装置の案内溝部分の起上状態の側面部分断面図である。It is side surface fragmentary sectional view of the raising state of the guide groove part of the treatment tool raising apparatus of the ultrasonic endoscope of the Example of this invention. 本発明の実施例の超音波内視鏡の処置具起上装置の処置具の起上状態が最小角度の場合の側面部分断面図である。It is side surface fragmentary sectional view in case the raising state of the treatment tool of the treatment tool raising apparatus of the ultrasonic endoscope of the Example of this invention is a minimum angle. 本発明の実施例の超音波内視鏡の処置具起上装置の処置具の起上状態が最大角度の場合の側面部分断面図である。It is side surface fragmentary sectional drawing in case the raising state of the treatment tool of the treatment tool raising apparatus of the ultrasonic endoscope of the Example of this invention is a maximum angle.

符号の説明Explanation of symbols

１ 挿入部
３ 先端部本体（先端部分）
３ａ 超音波走査部
３ｂ 光学観察部
５ 操作部
６ 起上片操作レバー
７ 操作ワイヤ
１１ 超音波プローブ
１２ 観察窓
１３ 照明窓
１４ 処置具突出口
１５ 処置具起上片
１６ 支軸
１７ 第１の永久磁石
１８ 第２の永久磁石
１９ 隔壁
２０ 案内溝 1 Insertion section 3 Tip body (tip part)
3a Ultrasonic scanning unit 3b Optical observation unit 5 Operation unit 6 Raising piece operation lever 7 Operation wire 11 Ultrasonic probe 12 Observation window 13 Illumination window 14 Treatment instrument protrusion 15 Treatment instrument raising piece 16 Support shaft 17 First permanent shaft Magnet 18 Second permanent magnet 19 Bulkhead 20 Guide groove

Claims (3)

被検部の超音波断層像を得るための超音波走査部と被検部の表面の光学観察像を得るための光学観察部とが併設された超音波内視鏡の挿入部の先端部分に、上記挿入部内を通過した処置具の突出方向を上記挿入部の基端側からの遠隔操作により制御するための処置具起上片が可動に設けられた超音波内視鏡の処置具起上装置において、
上記処置具起上片に第１の永久磁石を取り付けると共に、上記挿入部の基端側から進退操作される操作ワイヤの先端に第２の永久磁石を取り付けてその部分を上記挿入部の先端部分内に可動に封止して、上記第１の永久磁石の一方の磁極と上記第２の永久磁石の他方の磁極とを隔壁を間に挟んで対向配置し、上記操作ワイヤで上記第２の永久磁石が移動操作されると、上記第１の永久磁石が上記第２の永久磁石に追随して移動することにより上記処置具起上片が動作して上記処置具の突出方向が変化するようにしたことを特徴とする超音波内視鏡の処置具起上装置。 An ultrasonic scanning unit for obtaining an ultrasonic tomographic image of the examination part and an optical observation part for obtaining an optical observation image of the surface of the examination part are provided at the distal end portion of the insertion part of the ultrasonic endoscope. The treatment tool raising of the ultrasonic endoscope in which the treatment tool raising piece for controlling the protruding direction of the treatment tool that has passed through the insertion portion by remote operation from the proximal end side of the insertion portion is movably provided In the device
The first permanent magnet is attached to the treatment instrument raising piece, and the second permanent magnet is attached to the distal end of the operation wire that is advanced and retracted from the proximal end side of the insertion portion, and the portion is attached to the distal end portion of the insertion portion. The first permanent magnet and the second permanent magnet are arranged so as to face each other with a partition wall therebetween, and the operation wire is used for the second permanent magnet. When the permanent magnet is operated to move, the first permanent magnet moves following the second permanent magnet, so that the treatment instrument raising piece operates to change the protruding direction of the treatment instrument. An apparatus for raising a treatment instrument for an ultrasonic endoscope, characterized by comprising: 上記処置具起上片が上記挿入部の先端部分に回動自在に支持されていて、上記第１の永久磁石がその磁極中心線を上記処置具起上片の回転中心軸に対して平行方向に向けて上記処置具起上片に取り付けられている請求項１記載の超音波内視鏡の処置具起上装置。   The treatment instrument raising piece is rotatably supported at the distal end portion of the insertion portion, and the first permanent magnet has its magnetic pole center line parallel to the rotation center axis of the treatment instrument raising piece. The treatment instrument raising device for an ultrasonic endoscope according to claim 1, wherein the treatment instrument raising piece is attached to the treatment instrument raising piece. 上記挿入部の先端部分に、上記処置具起上片の回動中心軸を中心とする円弧状に上記第２の永久磁石を案内する案内溝が形成されている請求項２記載の超音波内視鏡の処置具起上装置。   The ultrasonic wave guide according to claim 2, wherein a guide groove for guiding the second permanent magnet is formed in an arc shape centering on a rotation center axis of the treatment instrument raising piece at a distal end portion of the insertion portion. Endoscopic treatment tool raising device.
JP2005333879A 2005-11-18 2005-11-18 Ultrasound endoscope treatment tool raising device Active JP4776010B2 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017148406A (en) * 2016-02-26 2017-08-31 富士フイルム株式会社 Endoscope
WO2018134667A1 (en) * 2017-01-18 2018-07-26 Hoya Corporation Endoscope with an endoscope head and a cap that can be placed on the endoscope head

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JPH0291504A (en) * 1988-09-28 1990-03-30 Ricoh Co Ltd Method for inspecting cross-sectional profile of fine pattern
JPH1099266A (en) * 1996-09-30 1998-04-21 Olympus Optical Co Ltd Endoscope

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Publication number Priority date Publication date Assignee Title
JPH0291504A (en) * 1988-09-28 1990-03-30 Ricoh Co Ltd Method for inspecting cross-sectional profile of fine pattern
JPH1099266A (en) * 1996-09-30 1998-04-21 Olympus Optical Co Ltd Endoscope

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017148406A (en) * 2016-02-26 2017-08-31 富士フイルム株式会社 Endoscope
WO2018134667A1 (en) * 2017-01-18 2018-07-26 Hoya Corporation Endoscope with an endoscope head and a cap that can be placed on the endoscope head
CN109561814A (en) * 2017-01-18 2019-04-02 Hoya株式会社 Endoscope with endoscope head and the cap that can be sleeved in endoscope head
JP2019531145A (en) * 2017-01-18 2019-10-31 Hoya株式会社 Endoscope having an endoscope head and a cap attachable to the endoscope head
CN109561814B (en) * 2017-01-18 2022-11-18 Hoya株式会社 Endoscope having an endoscope head and a cap that can be placed over the endoscope head

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