JP4514183B2 - Endoscope gripping device - Google Patents

Endoscope gripping device Download PDF

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Publication number
JP4514183B2
JP4514183B2 JP2003273069A JP2003273069A JP4514183B2 JP 4514183 B2 JP4514183 B2 JP 4514183B2 JP 2003273069 A JP2003273069 A JP 2003273069A JP 2003273069 A JP2003273069 A JP 2003273069A JP 4514183 B2 JP4514183 B2 JP 4514183B2
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Prior art keywords
negative pressure
endoscope
holding
holding member
magnetic
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JP2005028006A (en
JP4514183B6 (en
Inventor
裕久 植田
昌史 金澤
忠生 垣添
寿光 小林
卓志 後藤田
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Hoya Corp
National Cancer Center Japan
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Hoya Corp
National Cancer Center Japan
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Priority to JP2003273069A priority Critical patent/JP4514183B6/en
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Publication of JP4514183B2 publication Critical patent/JP4514183B2/en
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/00234Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
    • A61B2017/00238Type of minimally invasive operation
    • A61B2017/00283Type of minimally invasive operation with a device releasably connected to an inner wall of the abdomen during surgery, e.g. an illumination source
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/00831Material properties
    • A61B2017/00876Material properties magnetic
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/30Surgical pincettes without pivotal connections
    • A61B2017/306Surgical pincettes without pivotal connections holding by means of suction
    • A61B2017/308Surgical pincettes without pivotal connections holding by means of suction with suction cups

Description

本発明は、内視鏡観察下で病変部を切除する際に、磁界によって誘導可能な磁気アンカーを用いて、患者の病変部を保持するための内視鏡用保持装置に関する。 The present invention, when excising the lesion under endoscopic observation, using a magnetic anchor inducible by the magnetic field, about the endoscope holding device for holding the lesion of the patient.

内視鏡を用いた手術の一態様として従来磁気アンカーを用いて病変部を持ち上げて切除する手法が知られている。この手法では、磁気アンカーと、病変部を把持するクリップとを患者体内に導入し、これを病変部切除の際の病変部把持に用いていた。   As one aspect of the operation using an endoscope, there has been conventionally known a technique of lifting and excising a lesion using a magnetic anchor. In this method, a magnetic anchor and a clip for gripping a lesioned part are introduced into the patient's body and used for gripping the lesioned part at the time of excision of the lesioned part.

しかし、この例では鋭利な先端形状を有するクリップで病変部を把持するため、病変部およびその周辺部を不必要に傷つけるおそれがあった。   However, in this example, since the lesioned part is gripped by a clip having a sharp tip shape, the lesioned part and its peripheral part may be unnecessarily damaged.

特願2002−268239号明細書Japanese Patent Application No. 2002-268239

そこで本発明の目的は、患者体内の病変部およびその周辺部を不必要に傷つけるおそれの少ない内視鏡用保持装置及び磁気アンカー遠隔誘導システムを提供することにある。   SUMMARY OF THE INVENTION An object of the present invention is to provide an endoscope holding apparatus and a magnetic anchor remote guidance system that are less likely to unnecessarily damage a lesioned part and its peripheral part in a patient.

上記問題点を解決するために、本発明の内視鏡用保持装置においては、対象物内部の対象部位を保持する保持部材と、連結部材を介して保持部材を牽引するアンカーと、を備え、保持部材は、対象部位に対して閉曲線で接触する接触部と、接触部を閉じたときに閉空間を形成する中空部と、を有する吸盤部を備え、前記吸盤部は、前記中空部を負圧にするための負圧化手段を有すること、及び前記アンカーは磁気アンカーであって、外部磁界により移動可能であることを特徴としている。 In order to solve the above problems, the endoscope holding device of the present invention includes a holding member that holds a target portion inside the object, and an anchor that pulls the holding member via a connecting member, The holding member includes a suction cup part having a contact part that makes contact with the target site in a closed curve and a hollow part that forms a closed space when the contact part is closed, and the suction cup part has a negative effect on the hollow part. A negative pressure generating means for generating a pressure, and the anchor is a magnetic anchor and is movable by an external magnetic field.

負圧化手段を、前記吸盤部の中空部を形成する壁面の一部に形成した弾性変形部とすることが好ましい。 It is preferable that the negative pressure generating means is an elastic deformation part formed on a part of the wall surface forming the hollow part of the suction cup part .

弾性変形部を吸引して中空部内を負圧とする吸引部を備えることが好ましい。   It is preferable to provide a suction part that sucks the elastic deformation part and makes the inside of the hollow part have a negative pressure.

前記負圧手段として、接触部閉止膜により閉じて、中空部内部あらかじめ負圧にる構成も可能であり、閉止膜は、酵素により溶融可能であることが好ましい。

As the negative pressure means, the contact portion is closed by the closing membrane, constituting you inside hollow portion to advance the negative pressure is also possible, it closed film preferably by enzyme are melt.

中空部の外囲の少なくとも一部に、熱によって収縮して中空部内の容積を減少させる環状の締め付け部が配置すると対称部位の保持が確実となるので好ましい。   It is preferable that an annular fastening portion that shrinks by heat to reduce the volume in the hollow portion is disposed in at least a part of the outer periphery of the hollow portion because the symmetrical portion can be reliably held.

<第1実施形態>
(1)構成
以下、本発明に係る第1実施形態を図面を参照しつつ詳しく説明する。第1実施形態に係る内視鏡用保持装置1は、保持部材10、磁気アンカー30、連結部材20等を有する。
<First Embodiment>
(1) Configuration Hereinafter, a first embodiment according to the present invention will be described in detail with reference to the drawings. The endoscope holding apparatus 1 according to the first embodiment includes a holding member 10, a magnetic anchor 30, a connecting member 20, and the like.

図1及び図2に示す磁気アンカー30は球状の強磁性体からなる。磁気アンカー30に用いられる磁性体としては、例えば、純鉄、鉄合金のほか、プラチナマグネット、希土類磁石、テルビウム・ディスプロシウム・鉄合金などの磁石がある。   The magnetic anchor 30 shown in FIGS. 1 and 2 is made of a spherical ferromagnetic material. Examples of the magnetic material used for the magnetic anchor 30 include magnets such as platinum magnets, rare earth magnets, terbium / dysprosium / iron alloys in addition to pure iron and iron alloys.

磁気アンカー30には磁気アンカー30と保持部材10とを連結するための線状の連結部材20の一端が固定されている。連結部材20は、剛体、弾性材料、柔軟材料のいずれでもよく、バネ、ゴム等も使用することができる。連結部材20の他端は保持部材10に固定されている。   One end of a linear connecting member 20 for connecting the magnetic anchor 30 and the holding member 10 is fixed to the magnetic anchor 30. The connecting member 20 may be a rigid body, an elastic material, or a flexible material, and a spring, rubber, or the like can also be used. The other end of the connecting member 20 is fixed to the holding member 10.

図2、図3に詳細を示す保持部材10は、患者(対象物)体内の病変部(対象部位)70(図1)を吸引吸着して、病変部70の少なくとも一部を中空のその内部に保持可能な吸盤部11を有する。   The holding member 10 shown in detail in FIGS. 2 and 3 sucks and absorbs a lesioned part (target site) 70 (FIG. 1) in a patient (target) body, and at least a part of the lesioned part 70 is hollow. The suction cup portion 11 can be held.

吸盤部11は、一方が開口(接触部)11aとなった有底の略円筒状弾性材料からなり、その内壁11bには、内部に保持した病変部70が抜け落ちることを防止するための突起部11cが設けられ、外周(外囲)11dの上部には、保持部材10の内部を負圧とするための吸引部26の先端が螺合可能な吸引部材連結部11eが設けられている。開口11aが病変部70に対してその形状で定まる閉曲線で接触すると、開口11aが閉じられた吸盤部11の内部(中空部)14に閉空間が形成される。突起部11cは、吸盤部11の底面11fに向けて突出した輪状形状をなしている。   The suction cup portion 11 is made of a bottomed substantially cylindrical elastic material having one opening (contact portion) 11a, and a protrusion for preventing the lesioned portion 70 held inside from falling off on the inner wall 11b. 11c is provided, and a suction member connecting portion 11e to which the tip of the suction portion 26 for negatively setting the inside of the holding member 10 can be screwed is provided at an upper portion of the outer periphery (outer) 11d. When the opening 11a contacts the lesioned part 70 with a closed curve determined by its shape, a closed space is formed in the interior (hollow part) 14 of the suction cup part 11 where the opening 11a is closed. The protruding portion 11 c has a ring shape that protrudes toward the bottom surface 11 f of the suction cup portion 11.

底面11fの中央部分は、吸盤部11を構成する材料より弾性率が低く、かつ、吸盤部11より薄い弾性材料からなるバルーン(負圧化手段、弾性変形部)12で構成されている(図3)。なお、バルーン12は、吸盤部11を構成する材料よりも変形しやすければ、弾性率が低くなくてもよいし、吸盤部11と同じ若しくは厚い材料で構成されていてもよい。   The central portion of the bottom surface 11f is composed of a balloon (negative pressure means, elastic deformation portion) 12 made of an elastic material having a lower elastic modulus than the material constituting the suction cup portion 11 and thinner than the suction cup portion 11 (FIG. 3). The balloon 12 does not have to have a low elastic modulus as long as it is more deformable than the material constituting the suction cup part 11, and may be made of the same or thick material as the suction cup part 11.

さらに、外周11d下部にはリング状の熱収縮材料からなる締め付け部13が配置されている。熱収縮材料としては、例えば、加熱することにより元の形状にもどる形状記憶材料を用いることができる。加熱することによって締め付け部13が収縮すると、弾性を有する吸盤部11も変形する(図3(b))。よって、円形の開口11aの内径を小さく収縮させることができる。締め付け部13により病変部70を吸盤部11内部に受容したときに、突起部11cの作用と相俟って病変部70の抜け落ち防止の効果をさらに向上させることができる。   Further, a fastening portion 13 made of a ring-shaped heat shrink material is disposed at the lower portion of the outer periphery 11d. As the heat-shrinkable material, for example, a shape memory material that returns to its original shape by heating can be used. When the tightening portion 13 contracts by heating, the suction cup portion 11 having elasticity is also deformed (FIG. 3B). Therefore, the inner diameter of the circular opening 11a can be reduced. When the lesioned part 70 is received inside the suction cup part 11 by the tightening part 13, the effect of preventing the lesioned part 70 from falling off can be further improved in combination with the action of the protrusion part 11c.

図3(a)に示すように、弾性を有する吸引部26は、その先端部26aの内面に吸盤部11の吸引部材連結部11eと螺合する連結部26bを備えている。図4に示すように、吸引部26は真空ポンプ27に接続されたチューブ28に連結可能であり、連結状態で真空ポンプ27を駆動することにより吸引部26内を負圧にすることができる。   As shown in FIG. 3A, the suction part 26 having elasticity includes a connection part 26b that is screwed into the suction member connection part 11e of the suction cup part 11 on the inner surface of the tip part 26a. As shown in FIG. 4, the suction part 26 can be connected to a tube 28 connected to a vacuum pump 27. By driving the vacuum pump 27 in a connected state, the inside of the suction part 26 can be set to a negative pressure.

一方、磁気アンカー遠隔誘導システム50は、磁気アンカー30を体外において吸引制御する(磁気アンカー30を移動可能とする)磁気誘導部材52を有する。磁気誘導部材52は、鉄心にコイルを巻いた構造の電磁石52cを基体52a上に配置したものである(図5)。なお、磁気誘導部材52は、永久磁石と電磁石の組み合わせでもよく、また、永久磁石と電磁石を2個以上組み合わせても良い。   On the other hand, the magnetic anchor remote guidance system 50 includes a magnetic guidance member 52 that controls the magnetic anchor 30 to be attracted outside the body (which allows the magnetic anchor 30 to move). In the magnetic induction member 52, an electromagnet 52c having a structure in which a coil is wound around an iron core is disposed on a base 52a (FIG. 5). The magnetic induction member 52 may be a combination of a permanent magnet and an electromagnet, or a combination of two or more permanent magnets and electromagnets.

以上の磁気誘導部材52は、図5に示すように、患者80が横たわったベッド56を上から囲むようにして配置されたフレーム/レール(一平面内移動機構)54上に擦動可能に電磁石52cが患者80に対向するように載置されている。このフレーム/レール54は一平面内において平行に配置されたU字状の二本のレール54a、54bからなり、ベッド56の床板56aの幅方向に平行に、二つのXYステージ(一方向移動機構)58の間に掛け渡されている。また、二つのXYステージ58は、フレーム/レール54が設けられた平面と直交する方向に相対移動可能である。以上の構成により、磁気誘導部材52は、基体52aがフレーム/レール54と擦動して二つのXYステージ58間を移動することができる。なお、磁気誘導部材52は、フレーム/レール54の平行な二本のレール54a、54bのうち患者80に近い側のレール54aに配置されている。   As shown in FIG. 5, the magnetic induction member 52 has an electromagnet 52c slidable on a frame / rail (in-plane moving mechanism) 54 disposed so as to surround the bed 56 on which the patient 80 lies. It is placed so as to face the patient 80. The frame / rail 54 is composed of two U-shaped rails 54a and 54b arranged in parallel in one plane, and two XY stages (one-way moving mechanism) are parallel to the width direction of the floor plate 56a of the bed 56. ) 58. Further, the two XY stages 58 are relatively movable in a direction perpendicular to the plane on which the frame / rail 54 is provided. With the above-described configuration, the magnetic guiding member 52 can move between the two XY stages 58 by the base 52a sliding on the frame / rail 54. The magnetic guiding member 52 is disposed on the rail 54a on the side close to the patient 80 of the two parallel rails 54a and 54b of the frame / rail 54.

フレーム/レール54の患者80から遠い側のレール54bには、フレーム/レール54全体の重量バランスを保つためのカウンターウエイト60がレール54b上を擦動可能に配置されている。カウンターウエイト60は、磁気誘導部材52の位置に応じて、その位置を変更する。例えば、磁気誘導部材52が患者80の正面にあるときは、カウンターウエイト60は患者80の背面に配置し、磁気誘導部材52が患者80の背面にあるときは、カウンターウエイト60は患者80の正面に配置して、フレーム/レール54全体の重量バランスをとっている。   A counterweight 60 for maintaining the weight balance of the entire frame / rail 54 is disposed on the rail 54b on the side far from the patient 80 of the frame / rail 54 so as to be slidable on the rail 54b. The counterweight 60 changes its position according to the position of the magnetic induction member 52. For example, when the magnetic guiding member 52 is in front of the patient 80, the counterweight 60 is disposed on the back of the patient 80, and when the magnetic guiding member 52 is on the back of the patient 80, the counterweight 60 is on the front of the patient 80. To balance the weight of the entire frame / rail 54.

以上のように磁気誘導部材52、XYステージ58、フレーム/レール54等を配置したことにより、病変部70切除のために最適な位置に磁気誘導部材52を配置することができる。したがって、病変部を切除しやすいように持ち上げるために、磁気アンカー30及び保持部材10を吸引して、これらを適切な位置に配置することが可能である。   As described above, by arranging the magnetic guiding member 52, the XY stage 58, the frame / rail 54, and the like, the magnetic guiding member 52 can be disposed at an optimum position for excision of the lesioned part 70. Therefore, in order to lift the lesioned part so as to be easily excised, it is possible to suck the magnetic anchor 30 and the holding member 10 and arrange them at an appropriate position.

(2)切除術実施の準備
磁気アンカー遠隔誘導システム50を用いた切除術の実施に先立っては、まず、局所麻酔を施した患者80をベッド56上に横たわらせる。このときフレーム/レール54は、XYステージ58によって患者80の頭部80aが来る側に退避してあり、磁気誘導部材52及びカウンターウエイト60は所定の位置に配置されている。患者80がベッド56に横たわると、XYステージ58を操作することによってフレーム/レール54を患者80の患部の正面に配置し、つづいてフレーム/レール54上で擦動させることによって磁気誘導部材52を切除術開始時の位置に配置する。
(2) Preparation for Performing Resection Prior to performing resection using the magnetic anchor remote guidance system 50, first, a patient 80 that has undergone local anesthesia is laid on the bed 56. At this time, the frame / rail 54 is retracted to the side where the head 80a of the patient 80 comes by the XY stage 58, and the magnetic guiding member 52 and the counterweight 60 are arranged at predetermined positions. When the patient 80 lies on the bed 56, the frame / rail 54 is placed in front of the affected area of the patient 80 by operating the XY stage 58, and then the magnetic guiding member 52 is rubbed on the frame / rail 54. Place it at the start of the resection.

(3)磁気アンカー30、保持部材10及び連結部材20の体内への導入操作
磁気アンカー30、保持部材10及び連結部材20の体内への導入について図6〜図8を参照しつつ説明する。図7及び図8は、内視鏡41の先端部43の拡大図とともに表している。なお、本実施形態においては内視鏡41全体の説明は省略する。
(3) Introduction operation of the magnetic anchor 30, the holding member 10, and the connecting member 20 into the body The introduction of the magnetic anchor 30, the holding member 10, and the connecting member 20 into the body will be described with reference to FIGS. 7 and 8 are shown together with an enlarged view of the distal end portion 43 of the endoscope 41. FIG. In the present embodiment, description of the entire endoscope 41 is omitted.

患者80の体内外には、あらかじめオーバーチューブ45を挿入しておき、このオーバーチューブ45を介して内視鏡41の挿入部を繰り返し出し入れする。挿入部の先端部43には、病変部70の切除時にエア及び浄水を送るための送気送水ノズル43a、切除部及びその周辺を照らすための照明窓43b、切除部及びその周辺を観察するために対物レンズを配置した観察窓43c、並びに鉗子チャネル43dが設けられている。   An overtube 45 is inserted in and out of the body of the patient 80 in advance, and the insertion portion of the endoscope 41 is repeatedly put in and out through the overtube 45. At the distal end portion 43 of the insertion portion, an air / water supply nozzle 43a for sending air and purified water at the time of excision of the lesioned portion 70, an illumination window 43b for illuminating the excision portion and its periphery, and the excision portion and its periphery are observed. Are provided with an observation window 43c in which an objective lens is disposed, and a forceps channel 43d.

以上の保持部材10、磁気アンカー30、連結部材20の患者80体内への導入は、この鉗子チャネル43dに挿通された導入管42を用いて行う。すなわち、あらかじめ螺合連結された吸引部26と保持部材10、及び、保持部材10に固定された連結部材20を導入管42内に順に配置し、連結部材20に連結された磁気アンカー30を導入管42の先端42aに当接するように配置する。この状態の導入管42を鉗子チャネル43dから先端部43内に挿通させて、後端42bを鉗子挿入口41aから外部へ延出させて、内視鏡41内に配置する。このとき、吸引部26は後端42bから外部に延出しており、延出した吸引部26の先端部26aを導入管42へ出し入れすることによって保持部材10及び磁気アンカー30を患者80の体内へ配置する事ができ、また、先端部26aを捻ることにより吸引部26と保持部材10との螺合を解除することができる。   The introduction of the holding member 10, the magnetic anchor 30, and the connecting member 20 into the patient 80 is performed using the introduction tube 42 inserted through the forceps channel 43d. That is, the suction portion 26 and the holding member 10 which are screwed together in advance and the connecting member 20 fixed to the holding member 10 are sequentially arranged in the introduction tube 42 and the magnetic anchor 30 connected to the connecting member 20 is introduced. It arrange | positions so that the front-end | tip 42a of the pipe | tube 42 may be contact | abutted. The introduction tube 42 in this state is inserted from the forceps channel 43 d into the distal end portion 43, and the rear end 42 b is extended to the outside from the forceps insertion port 41 a and disposed in the endoscope 41. At this time, the suction portion 26 extends to the outside from the rear end 42 b, and the holding member 10 and the magnetic anchor 30 are moved into the body of the patient 80 by inserting and removing the distal end portion 26 a of the extended suction portion 26 into and from the introduction tube 42. In addition, the screwing between the suction portion 26 and the holding member 10 can be released by twisting the distal end portion 26a.

図7に示すように、保持部材10は、吸引部26を操作することによって鉗子チャネル43dから患者80体内へ押し出して、病変部70に接触または近接させる。この状態で、チューブ28を介して吸引部26を真空ポンプ27に接続して真空ポンプ27を駆動すると、吸引部26内は負圧となるためバルーン12は吸引部26内に引き込まれる。すると、吸盤部11内も負圧となるため、病変部70は吸盤部11内に引き込まれる。その後、吸引部26を捻ることによって、吸引部26と吸盤部11との螺合を解除し、吸引部26を導入管42から引き抜く。   As shown in FIG. 7, the holding member 10 is pushed out from the forceps channel 43 d into the patient 80 by operating the suction unit 26, and is brought into contact with or close to the lesioned part 70. In this state, when the suction part 26 is connected to the vacuum pump 27 via the tube 28 and the vacuum pump 27 is driven, the inside of the suction part 26 becomes negative pressure, so that the balloon 12 is drawn into the suction part 26. Then, since the suction cup portion 11 also has a negative pressure, the lesioned portion 70 is drawn into the suction cup portion 11. Thereafter, the suction portion 26 is twisted to release the screwing between the suction portion 26 and the suction cup portion 11, and the suction portion 26 is pulled out from the introduction tube 42.

突起部11cが設けられていることにより病変部70の抜け落ちが防止されているため、吸引部26と吸盤部11との螺合を解除しても病変部70は吸盤部11内で保持される。また、鉗子チャネル43dから温水を噴出させて締め付け部13を加熱収縮させておくと、開口11aの内径が小さくなるため、抜け落ちの防止の効果を高くすることができる(図3(b))。なお、以上の操作中は磁気誘導部材52から発生する磁界を弱めにしておくと作業がしやすい。   Since the protruding portion 11c is provided to prevent the lesioned portion 70 from coming off, the lesioned portion 70 is held in the sucker portion 11 even if the screwing between the suction portion 26 and the suction cup portion 11 is released. . Further, if hot water is jetted from the forceps channel 43d and the tightening portion 13 is heated and shrunk, the inner diameter of the opening 11a is reduced, so that the effect of preventing dropout can be enhanced (FIG. 3B). During the above operation, it is easy to work if the magnetic field generated from the magnetic induction member 52 is weakened.

つづいて、磁気誘導部材52の発生磁界を強めることによって、磁気アンカー30を吸引して連結部材20が張りつめた状態とする(図8参照)。このように連結部材20の状態を調整することによって、磁気誘導部材52の動きが保持部材10まで伝わりやすくなるため、磁界を調整することによって病変部70を所望量だけ持ち上げることが容易にできる。   Subsequently, by strengthening the magnetic field generated by the magnetic induction member 52, the magnetic anchor 30 is attracted and the connecting member 20 is tensioned (see FIG. 8). By adjusting the state of the connecting member 20 in this manner, the movement of the magnetic guiding member 52 is easily transmitted to the holding member 10, and therefore, the lesioned part 70 can be easily lifted by a desired amount by adjusting the magnetic field.

以上のように構成した磁気アンカー遠隔誘導システムにおいては、病変部70を十分高く持ち上げることができるため、病変部70と正常組織との境界の切除部分を十分とることができ、病変部70が扁平な形状であっても、切除部分を作りだすことができる。また、任意の位置に保持部材10を配置できるため、切除した病変部70により内視鏡の視界が妨げられることがない。   In the magnetic anchor remote guidance system configured as described above, since the lesioned part 70 can be lifted sufficiently high, a sufficient excision of the boundary between the lesioned part 70 and the normal tissue can be taken, and the lesioned part 70 is flattened. Even if it is a simple shape, it is possible to create a cut portion. Further, since the holding member 10 can be arranged at an arbitrary position, the excised lesioned part 70 does not hinder the view of the endoscope.

(4)切除術のステップ
以上のように構成した磁気アンカー誘導システムを用いた病変部70の切除工程について説明する。図8及び図9は、本実施形態に係る磁気アンカー遠隔誘導システム50を用いた病変部70の切除工程を示す図である。
(4) Excision Step The excision process of the lesioned part 70 using the magnetic anchor guidance system configured as described above will be described. FIGS. 8 and 9 are views showing the excision process of the lesioned part 70 using the magnetic anchor remote guidance system 50 according to the present embodiment.

まず、病変部70の周辺から粘膜下層71に挿入した注射針で生理食塩水を注入して、病変部70を固有筋層72から浮き上がらせておく。また、磁気誘導部材52を病変部70付近のあらかじめ設定した位置に配置する。この状態で、病変部70を切除するのに最も適した位置に上述のように保持部材10をセットする。このようにセットすると、病変部70は磁気誘導部材52と磁気アンカー30との間の吸引力により持ち上げられるが、病変部70の持ち上げ量が不足するまたは大きすぎる場合は、磁気誘導部材52の位置をずらしたり磁気誘導部材52の発生する磁界を弱めることによって調整する。   First, physiological saline is injected from the periphery of the lesioned part 70 with an injection needle inserted into the submucosal layer 71, and the lesioned part 70 is lifted from the intrinsic muscle layer 72. Further, the magnetic guiding member 52 is arranged at a preset position near the lesioned part 70. In this state, the holding member 10 is set at the position most suitable for excising the lesioned part 70 as described above. When set in this way, the lesioned part 70 is lifted by the attractive force between the magnetic guiding member 52 and the magnetic anchor 30. If the lifted amount of the lesioned part 70 is insufficient or too large, the position of the magnetic guiding member 52 is increased. Is adjusted by shifting or weakening the magnetic field generated by the magnetic induction member 52.

つづいて、高周波メス46などの切開具を鉗子チャネル43dから体内に導入し、病変部70を粘膜とともに端部70aから切除していく。このとき、病変部70は保持部材10により持ち上げられているため、切除部分を十分とることができ、すでに切除した病変部70が固有筋層72上に落ち込むことも防ぐことができる。また、磁気誘導部材52の位置を徐々にずらすことにより切除された病変部70をさらに持ち上げることができるため、高周波メス46の先端位置46aの確認が容易となり切除作業をスムーズに行うことができる。   Subsequently, an incision tool such as a high-frequency knife 46 is introduced into the body through the forceps channel 43d, and the lesioned part 70 is excised together with the mucous membrane from the end part 70a. At this time, since the lesioned part 70 is lifted by the holding member 10, a sufficient excised part can be taken, and the already excised lesioned part 70 can also be prevented from falling on the proper muscle layer 72. Further, since the excised lesioned part 70 can be further lifted by gradually shifting the position of the magnetic guiding member 52, it is easy to confirm the distal end position 46a of the high-frequency knife 46, and the excision work can be performed smoothly.

また、以上のように切除作業を終えると、保持部材10に病変部70が取り付いた状態で磁気アンカー30が磁気誘導部材52に引き寄せられるため、病変部70が紛失することも防ぐことができる。切除した病変部70を回収する場合は、連結されたままの磁気アンカー30、保持部材10、連結部材20及び病変部70の一部分を鉗子チャネル43dから挿入した把持鉗子40(図10)で把持した状態で、磁気誘導部材52への電流の供給を止めて、そのまま内視鏡41を抜き去ることにより回収する。その後、縫合、消毒などの処置を行う。   Further, when the excision work is completed as described above, the magnetic anchor 30 is attracted to the magnetic guiding member 52 in a state where the lesioned part 70 is attached to the holding member 10, and therefore it is possible to prevent the lesioned part 70 from being lost. When the excised lesioned part 70 is recovered, the magnetic anchor 30, the holding member 10, the connecting member 20, and a part of the lesioned part 70 that are still connected are grasped by the grasping forceps 40 (FIG. 10) inserted from the forceps channel 43d. In this state, the supply of current to the magnetic induction member 52 is stopped, and the endoscope 41 is recovered as it is. Thereafter, treatments such as suturing and disinfection are performed.

なお、磁気アンカー30は、重力を用いて牽引してもよい。   The magnetic anchor 30 may be pulled using gravity.

<第2実施形態>
つづいて、本発明の第2実施形態を図面を参照しつつ詳しく説明する。第2実施形態に係る内視鏡用保持装置100は、保持部材110、連結部材120、磁気アンカー130を有する。なお、第2実施形態においては、第1実施形態と同じ部材については同じ参照符号を使用する。
<Second Embodiment>
Next, a second embodiment of the present invention will be described in detail with reference to the drawings. The endoscope holding device 100 according to the second embodiment includes a holding member 110, a connecting member 120, and a magnetic anchor 130. In the second embodiment, the same reference numerals are used for the same members as in the first embodiment.

図11に詳細を示す保持部材110は、患者80体内の病変部70(図12)を吸着して、病変部70の少なくとも一部をその内部に保持可能な吸盤部111を有する。   The holding member 110 shown in detail in FIG. 11 has a suction cup 111 that sucks the lesioned part 70 (FIG. 12) in the patient 80 and can hold at least a part of the lesioned part 70 therein.

吸盤部111は、一方が開口(接触部)111aとなった有底の略円筒状弾性材料からなり、その内壁111bには、内部に保持した病変部70が抜け落ちることを防止するための突起部111cが設けられている。開口111aは病変部70に対してその形状で定まる閉曲線で接触する。突起部111cは、吸盤部111の底面111fに向けて突出した輪状形状をなしている。   The suction cup portion 111 is made of a bottomed substantially cylindrical elastic material having one opening (contact portion) 111a, and the inner wall 111b has a protruding portion for preventing the lesioned portion 70 held therein from falling off. 111c is provided. The opening 111a contacts the lesioned part 70 with a closed curve determined by its shape. The protrusion 111c has a ring shape protruding toward the bottom surface 111f of the suction cup 111.

保持部材110の外周111d下部にはリング状の熱収縮材料からなる締め付け部113が固定されている。熱収縮材料としては、例えば加熱することにより元の形状にもどる形状記憶材料を用いることができる。加熱することによって締め付け部113が収縮すると、弾性を有する吸盤部111も変形するのは、第1実施形態において締め付け部13が収縮すると吸盤部11も変形するのと同様である。よって、円形の開口111aの内径を小さく収縮することができる。病変部70を吸盤部111内部に受容したときは、突起部111cの作用と相俟って病変部70の抜け落ち防止の効果をさらに向上させることができる。   A fastening portion 113 made of a ring-shaped heat shrink material is fixed to the lower portion of the outer periphery 111d of the holding member 110. As the heat-shrinkable material, for example, a shape memory material that returns to its original shape by heating can be used. When the tightening portion 113 contracts by heating, the suction cup portion 111 having elasticity is also deformed in the same manner as the suction cup portion 11 is deformed when the tightening portion 13 contracts in the first embodiment. Therefore, the inner diameter of the circular opening 111a can be reduced. When the lesioned part 70 is received inside the suction cup part 111, the effect of preventing the lesioned part 70 from falling off can be further improved in combination with the action of the protrusion 111c.

また、吸盤部111の上面111gには連結部材120を連結させるための孔部111hが設けられている。   A hole 111 h for connecting the connecting member 120 is provided on the upper surface 111 g of the suction cup 111.

吸盤部111は、あらかじめ内部を負圧にし、この状態を保ちつつ患者80体内に導入する。
まず、吸盤部111を負圧にするには、保持部材110を真空チャンバー(不図示)に入れ、これに接続された真空装置(不図示)によって真空チャンバー内を負圧にする。これにより、真空チャンバー内の保持部材110の吸盤部111内も負圧となる。
The suction cup portion 111 is introduced into the body of the patient 80 while maintaining a negative pressure in the inside in advance.
First, in order to make the suction cup portion 111 have a negative pressure, the holding member 110 is put in a vacuum chamber (not shown), and the inside of the vacuum chamber is made a negative pressure by a vacuum device (not shown) connected thereto. As a result, the suction cup 111 of the holding member 110 in the vacuum chamber also has a negative pressure.

この状態で、真空チャンバー内で開口111aに溶融膜(閉止膜)112を接着固定することによって開口111aを封止する。すると、開口111aが閉じられた吸盤部111の内部(中空部)114に閉空間が形成される。溶融膜112は、負圧状態の保持部材110を大気圧に戻しても破れない程度の強度を有している。また、溶融膜112は、患者80の胃液等の臓器からの分泌液に含まれる酵素(例えば、ペプシノーゲン、キモシン(レニン、凝乳酵素)、リパーゼ、ペプシノーゲンB、C、D、ガストリクシン)によって溶融する物質(例えばタンパク質、寒天)から構成されている。したがって、吸盤部111は患者80体内への導入中では負圧を保つことができ、かつ、胃などの病変部70に溶融膜112を押し当てて密着させると病変部70表面を濡らしている胃液等により溶融膜112は溶融し、吸盤部111内の負圧により病変部70は吸盤部111内に引き込まれる。   In this state, the opening 111a is sealed by bonding and fixing a molten film (closing film) 112 to the opening 111a in the vacuum chamber. Then, a closed space is formed in the inside (hollow part) 114 of the suction cup part 111 in which the opening 111a is closed. The molten film 112 has such a strength that it cannot be broken even if the holding member 110 in a negative pressure state is returned to atmospheric pressure. In addition, the melted film 112 is melted by an enzyme (for example, pepsinogen, chymosin (renin, milk coagulase), lipase, pepsinogen B, C, D, gastricsin) contained in a secretion fluid from an organ such as gastric juice of the patient 80. It is composed of substances (eg, protein, agar). Therefore, the suction cup portion 111 can maintain a negative pressure during introduction into the patient 80 and gastric juice that wets the surface of the lesioned portion 70 when the molten film 112 is pressed against the lesioned portion 70 such as the stomach and brought into close contact therewith. The melted film 112 is melted due to the above, and the lesioned part 70 is drawn into the sucker part 111 by the negative pressure in the sucker part 111.

一方、第2実施形態における磁気アンカー130は球状の強磁性体からなる本体部130aに連結部材120と連結するための孔部130bを設けた構成となっている(図15)。磁気アンカー130に用いられる磁性体としては、例えば、純鉄、鉄合金のほか、プラチナマグネット、希土類磁石、テルビウム・ディスプロシウム・鉄合金などの磁石がある。   On the other hand, the magnetic anchor 130 in the second embodiment has a configuration in which a hole 130b for connecting to the connecting member 120 is provided in a main body 130a made of a spherical ferromagnetic material (FIG. 15). Examples of the magnetic material used for the magnetic anchor 130 include magnets such as platinum magnets, rare earth magnets, terbium / dysprosium / iron alloys in addition to pure iron and iron alloys.

磁気アンカー130と保持部材110とを連結する連結部材120は、本体部120aの両端にフック部120b、120cを備えている。連結は、フック部120b、120cのそれぞれに磁気アンカー130の孔部130b及び保持部材110の孔部111hを掛けることによって行う。120aは、剛体、弾性材料、柔軟材料のいずれでもよく、バネ、ゴム等も使用することができ、フック部120b、120cに繰り出し機構を設けて長さを調整できるようにしてもよい。なお、連結部材120をつかわずに、保持部材110と磁気アンカー130を直接連結する構成でもよく、保持部材110と磁気アンカー130を一体で形成してもよい。   The connecting member 120 that connects the magnetic anchor 130 and the holding member 110 includes hook portions 120b and 120c at both ends of the main body portion 120a. The connection is performed by hooking the hole 130b of the magnetic anchor 130 and the hole 111h of the holding member 110 to the hooks 120b and 120c, respectively. 120a may be any of a rigid body, an elastic material, and a flexible material. A spring, rubber, or the like may be used, and the hook portions 120b and 120c may be provided with a feeding mechanism so that the length can be adjusted. The holding member 110 and the magnetic anchor 130 may be directly connected without using the connecting member 120, or the holding member 110 and the magnetic anchor 130 may be integrally formed.

磁気アンカー130の吸引制御は、第1実施形態と同様に磁気アンカー遠隔誘導システム50を用いて行う。   The suction control of the magnetic anchor 130 is performed using the magnetic anchor remote guidance system 50 as in the first embodiment.

つづいて、磁気アンカー130、保持部材110及び連結部材120の体内への導入について図12〜15を参照しつつ説明する。
保持部材110、連結部材120、磁気アンカー130の患者80体内への導入は、あらかじめ患者80体内に挿入されたオーバーチューブ45内に内視鏡41の挿入部を繰り返し出し入れすることによって行う。保持部材110、連結部材120、磁気アンカー130は、内視鏡41の先端部43の鉗子チャネル43dに挿通された把持鉗子40に把持された状態で、オーバーチューブ45内を挿通されて患者80体内に導入される。
Next, introduction of the magnetic anchor 130, the holding member 110, and the connecting member 120 into the body will be described with reference to FIGS.
The introduction of the holding member 110, the connecting member 120, and the magnetic anchor 130 into the patient 80 is performed by repeatedly inserting and removing the insertion portion of the endoscope 41 into and from the overtube 45 previously inserted into the patient 80. The holding member 110, the connecting member 120, and the magnetic anchor 130 are inserted through the overtube 45 while being held by the grasping forceps 40 inserted through the forceps channel 43 d of the distal end portion 43 of the endoscope 41, so that the inside of the patient 80. To be introduced.

まず保持部材110の孔部111hを把持した把持鉗子40が鉗子チャネル43dから挿通された内視鏡41をオーバーチューブ45内に挿入して、図12に示すように保持部材110を体内に導入する。次に、鉗子挿入口41aから延出した把持鉗子40を操作することにより、保持部材110の溶融膜112を病変部70の所望位置に密着させる。すると、溶融膜112は、病変部70表面を濡らしている胃液等により溶融し、吸盤部111内の負圧により病変部70は吸盤部111内に引き込まれる(図13)。   First, the grasping forceps 40 grasping the hole 111h of the holding member 110 is inserted into the overtube 45 with the endoscope 41 inserted through the forceps channel 43d, and the holding member 110 is introduced into the body as shown in FIG. . Next, by operating the grasping forceps 40 extending from the forceps insertion opening 41 a, the molten film 112 of the holding member 110 is brought into close contact with the desired position of the lesioned part 70. Then, the molten film 112 is melted by gastric juice or the like that wets the surface of the lesioned part 70, and the lesioned part 70 is drawn into the sucker part 111 by the negative pressure in the sucker part 111 (FIG. 13).

突起部111cが設けられていることにより病変部70の抜け落ちが防止されているため、病変部70は吸盤部111内で保持される。また、鉗子チャネル43dから温水を噴出させて締め付け部113を加熱収縮させておくと、開口111aの内径が小さくなるため、抜け落ちの防止の効果を高めることができる(図13)。   Since the protruding portion 111 c is provided to prevent the lesioned portion 70 from falling off, the lesioned portion 70 is held in the suction cup portion 111. Further, if hot water is jetted from the forceps channel 43d and the tightening portion 113 is heated and contracted, the inner diameter of the opening 111a is reduced, so that the effect of preventing dropout can be enhanced (FIG. 13).

つづいて、内視鏡41をいったん引き抜いて、連結部材120を把持した把持鉗子40が鉗子チャネル43dから挿通された状態の内視鏡41を再びオーバーチューブ45内に挿入することにより、図14に示すように連結部材120を体内に導入する。次に、鉗子挿入口41aから延出した把持鉗子40を操作することにより、フック部120cを孔部111hに掛け止める(図15参照)。   Subsequently, the endoscope 41 is once pulled out, and the endoscope 41 in a state where the grasping forceps 40 grasping the connecting member 120 is inserted through the forceps channel 43d is again inserted into the overtube 45, whereby FIG. As shown, the connecting member 120 is introduced into the body. Next, by operating the grasping forceps 40 extending from the forceps insertion opening 41a, the hook portion 120c is hooked on the hole portion 111h (see FIG. 15).

最後に、内視鏡41をいったん引き抜いて、磁気アンカー130の孔部130bを把持した把持鉗子40が鉗子チャネル43dから挿通された状態の内視鏡41を再びオーバーチューブ45内に挿入することにより、図15に示すように磁気アンカー130を体内に導入する。次に、鉗子挿入口41aから延出した把持鉗子40を操作することにより、孔部130bをフック部120bに掛け止めて(図16)、磁気アンカー磁気アンカー130、保持部材110及び連結部材120の体内への導入を終了する。つづいて、磁気誘導部材52の発生磁界を強めることによって、磁気アンカー130を吸引して連結部材120が張りつめた状態とする(図16)。このように連結部材120の状態を調整することによって、磁気誘導部材52の動きが保持部材110まで伝わりやすくなるため、磁界を調整することによって病変部70を所望量だけ持ち上げることが容易にできる。   Finally, the endoscope 41 is pulled out once, and the endoscope 41 in a state where the grasping forceps 40 grasping the hole 130b of the magnetic anchor 130 is inserted through the forceps channel 43d is inserted into the overtube 45 again. As shown in FIG. 15, the magnetic anchor 130 is introduced into the body. Next, by operating the grasping forceps 40 extended from the forceps insertion opening 41a, the hole 130b is hooked on the hook 120b (FIG. 16), and the magnetic anchor magnetic anchor 130, the holding member 110, and the connecting member 120 are connected. Finish introduction into the body. Subsequently, by strengthening the magnetic field generated by the magnetic induction member 52, the magnetic anchor 130 is attracted and the connecting member 120 is tensioned (FIG. 16). By adjusting the state of the connecting member 120 in this manner, the movement of the magnetic guiding member 52 is easily transmitted to the holding member 110. Therefore, the lesioned portion 70 can be easily lifted by a desired amount by adjusting the magnetic field.

つづいて、高周波メス46などの切開具を鉗子チャネル43dから体内に導入し、病変部70を粘膜とともに端部70aから切除していくのは第1実施形態と同様である。   Subsequently, an incision tool such as a high-frequency knife 46 is introduced into the body through the forceps channel 43d, and the lesioned part 70 is excised from the end part 70a together with the mucous membrane as in the first embodiment.

切除した病変部70の回収は、連結されたままの磁気アンカー30、保持部材10、連結部材20及び病変部70の一部分を鉗子チャネル43dから挿入した把持鉗子40で把持した状態で、磁気誘導部材52への電流の供給を止めて、そのまま内視鏡41を抜き去ることにより回収する。その後、縫合、消毒などの処置を行う。   The excised lesioned part 70 is recovered in a state where the magnetic anchor 30, the holding member 10, the connecting member 20, and a part of the lesioned part 70 that are still connected are held by the grasping forceps 40 inserted from the forceps channel 43 d. The current supply to 52 is stopped, and the endoscope 41 is withdrawn as it is to collect the current. Thereafter, treatments such as suturing and disinfection are performed.

なお、その他の構成、作用、効果は第1実施形態と同様である。   Other configurations, operations, and effects are the same as those in the first embodiment.

本発明について上記実施形態を参照しつつ説明したが、本発明は上記実施形態に限定されるものではなく、改良の目的または本発明の思想の範囲内において改良または変更が可能である。   Although the present invention has been described with reference to the above embodiment, the present invention is not limited to the above embodiment, and can be improved or changed within the scope of the purpose of the improvement or the idea of the present invention.

以上説明したように、本発明によると、従来のクリップに代えて患部を吸引して保持する保持部材を採用することにより、患者体内の病変部およびその周辺部を不必要に傷つけるおそれの少ない内視鏡用保持装置を提供することができる。   As described above, according to the present invention, by adopting a holding member that sucks and holds an affected part instead of a conventional clip, it is possible to reduce the risk of unnecessarily damaging a lesioned part and its peripheral part in a patient. An endoscope holding device can be provided.

本発明の第1実施形態に係る内視鏡用保持装置が患者体内に配置されたときの状態を示す図である。It is a figure which shows a state when the holding | maintenance apparatus for endoscopes which concerns on 1st Embodiment of this invention is arrange | positioned in a patient's body. 本発明の第1実施形態に係る内視鏡用保持装置の構成を示す図であり、(a)は平面図、(b)は側面図である。It is a figure which shows the structure of the holding | maintenance apparatus for endoscopes which concerns on 1st Embodiment of this invention, (a) is a top view, (b) is a side view. 本発明の第1実施形態に係る保持部材の構成を示す図2のIII−III線における鉛直方向断面図であり、(a)は吸引具が連結された状態、(b)はバルーンが吸引され、締め付け部材が収縮された状態を示している。FIG. 3 is a vertical cross-sectional view taken along line III-III in FIG. 2 showing the configuration of the holding member according to the first embodiment of the present invention, where (a) shows a state in which a suction tool is connected, and (b) shows a balloon being sucked. The tightening member is shown in a contracted state. 本発明の第1実施形態に係る内視鏡用保持装置を内視鏡にセットしたときの状態を示す図である。It is a figure which shows a state when the endoscope holding device which concerns on 1st Embodiment of this invention is set to the endoscope. 病変部の切除を行うときの患者を載せたベッド、磁気誘導部材等の配置を患者の頭部側から見た図である。It is the figure which looked at arrangement | positioning of the bed which mounted the patient when excising a lesion part, a magnetic induction member, etc. from the patient's head side. 本発明の第1実施形態に係る内視鏡用保持装置を導入管にセットしたときの導入管内の配置を示す図である。It is a figure which shows arrangement | positioning in an introduction tube when the holding | maintenance apparatus for endoscopes which concerns on 1st Embodiment of this invention is set to an introduction tube. 本発明の第1実施形態に係る内視鏡用保持装置の体内への導入の様子を示す図である。It is a figure which shows the mode of introduction into the body of the holding | maintenance apparatus for endoscopes which concerns on 1st Embodiment of this invention. 本発明の第1実施形態に係る内視鏡用保持装置を用いた病変部の切除工程を示す図である。It is a figure which shows the excision process of the lesioned part using the holding | maintenance apparatus for endoscopes which concerns on 1st Embodiment of this invention. 本発明の第1実施形態に係る内視鏡用保持装置を用いた病変部の切除工程を示す図である。It is a figure which shows the excision process of the lesioned part using the holding | maintenance apparatus for endoscopes which concerns on 1st Embodiment of this invention. 本発明の第1実施形態に係る内視鏡用保持装置を用いた病変部の切除後の状態を示す図である。It is a figure which shows the state after excision of the lesioned part using the holding | maintenance apparatus for endoscopes which concerns on 1st Embodiment of this invention. 本発明の第2実施形態に係る保持部材の構成を示す図であり、(a)は側面図、(b)は(a)の線XIB−XIBにおける断面図である。It is a figure which shows the structure of the holding member which concerns on 2nd Embodiment of this invention, (a) is a side view, (b) is sectional drawing in line XIB-XIB of (a). 本発明の第2実施形態に係る保持部材を患者体内に導入した状態を示す図である。It is a figure which shows the state which introduced the holding member which concerns on 2nd Embodiment of this invention in the patient body. 本発明の第2実施形態に係る保持部材の内部に病変部を吸引した状態を示す図11(a)の線XIB−XIBにおける断面図である。It is sectional drawing in the line XIB-XIB of Fig.11 (a) which shows the state which attracted | sucked the lesioned part inside the holding member which concerns on 2nd Embodiment of this invention. 本発明の第2実施形態に係る連結部材を患者体内に導入した状態を示す図である。It is a figure which shows the state which introduce | transduced the connection member which concerns on 2nd Embodiment of this invention in a patient body. 本発明の第2実施形態に係る磁気アンカーを患者体内に導入した状態を示す図である。It is a figure which shows the state which introduce | transduced the magnetic anchor which concerns on 2nd Embodiment of this invention in the patient body. 本発明の第2実施形態に係る内視鏡用保持装置を用いた病変部の切除工程を示す図である。It is a figure which shows the excision process of the lesioned part using the holding | maintenance apparatus for endoscopes which concerns on 2nd Embodiment of this invention.

符号の説明Explanation of symbols

1 内視鏡用保持装置
10 保持部材
11 吸盤部
11a 開口(接触部)
11d 外周(外囲)
12 バルーン(負圧化手段、弾性変形部)
13 締め付け部
14 内部(中空部)
20 連結部材
30 磁気アンカー(アンカー)
50 磁気アンカー遠隔誘導システム
70 病変部(対象部位)
80 患者(対象物)
100 内視鏡用保持装置
110 保持部材
111 吸盤部
112 溶融膜(閉止膜)
113 締め付け部
120 連結部材
130 磁気アンカー(アンカー)
DESCRIPTION OF SYMBOLS 1 Endoscope holding | maintenance apparatus 10 Holding member 11 Suction cup part 11a Opening (contact part)
11d outer circumference (outer)
12 Balloon (negative pressure means, elastic deformation part)
13 Tightening part 14 Inside (hollow part)
20 connecting member 30 magnetic anchor (anchor)
50 Magnetic anchor remote guidance system 70 Lesions (target site)
80 patients (objects)
100 Endoscope Holding Device 110 Holding Member 111 Suction Cup 112 Melted Film (Closed Film)
113 Tightening part 120 Connecting member 130 Magnetic anchor (anchor)

Claims (6)

対象物内部の対象部位を保持する保持部材と、
連結部材を介して前記保持部材を牽引するアンカーと、
を備え、
前記保持部材は、前記対象部位に対して閉曲線で接触する接触部と、前記接触部を閉じたときに閉空間を形成する中空部と、を有する吸盤部を備え、
前記吸盤部は、前記中空部を負圧にするための負圧化手段を有すること、及び
前記アンカーは磁気アンカーであって、前記外部磁界により移動可能であることを特徴とする内視鏡用保持装置。
A holding member for holding a target portion inside the target object;
An anchor that pulls the holding member through a connecting member;
With
The holding member includes a suction cup portion having a contact portion that contacts the target portion with a closed curve, and a hollow portion that forms a closed space when the contact portion is closed,
For the endoscope , the suction cup portion has a negative pressure means for making the hollow portion into a negative pressure, and the anchor is a magnetic anchor and is movable by the external magnetic field. Holding device.
前記負圧化手段は、前記中空部を形成する壁面の一部に形成した弾性変形部である請求項記載の内視鏡用保持装置。 The negative pressure means, the hollow portion is elastically deformable portion formed on a part of the wall surface forming the claims 1 endoscope holding apparatus according. 前記弾性変形部を吸引して前記中空部内を負圧とする吸引部を備える請求項記載の内視鏡用保持装置。 The endoscope holding apparatus according to claim 2, further comprising a suction part that sucks the elastic deformation part to create a negative pressure in the hollow part. 前記負圧化手段は、前記接触部を閉じる閉止膜であって、前記中空部内部はあらかじめ負圧にされている請求項1記載の内視鏡用保持装置。 The endoscope holding apparatus according to claim 1 , wherein the negative pressure generating means is a closing film that closes the contact portion, and the inside of the hollow portion is previously set to a negative pressure. 前記閉止膜は、酵素により溶融可能である請求項記載の内視鏡用保持装置。 The endoscope holding device according to claim 4 , wherein the closing film can be melted by an enzyme. 前記中空部の外囲の少なくとも一部に、熱によって収縮して前記中空部内の容積を減少させる環状の締め付け部が配置されている請求項1〜請求項のいずれか1項記載の内視鏡用保持装置。 The internal view according to any one of claims 1 to 5 , wherein an annular tightening portion that contracts by heat to reduce a volume in the hollow portion is disposed in at least a part of an outer periphery of the hollow portion. Mirror holding device.
JP2003273069A 2003-07-10 Endoscope gripping device Expired - Fee Related JP4514183B6 (en)

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US11033278B2 (en) 2017-11-08 2021-06-15 Mayo Foundation For Medical Education And Research Systems and methods for endoscopic submucosal dissection using magnetically attachable clips
US11350946B2 (en) 2017-11-08 2022-06-07 Mayo Foundation For Medical Education And Research Systems and methods for endoscopic submucosal dissection using magnetically attachable clips

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JP2001037762A (en) * 1999-08-03 2001-02-13 Shinsaku Kaguchi Fixing machine for surgical operation
JP2001061843A (en) * 1999-08-26 2001-03-13 Olympus Optical Co Ltd Ultrasonic needling lifter
JP2002159508A (en) * 2000-11-28 2002-06-04 Yamaguchi Technology Licensing Organization Ltd Identifying system of lesion in digestive organ
JP2002238913A (en) * 2001-02-14 2002-08-27 Kishino Shoji Forceps
JP2004105247A (en) * 2002-09-13 2004-04-08 Pentax Corp Magnetic anchor remotely guiding system

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001037762A (en) * 1999-08-03 2001-02-13 Shinsaku Kaguchi Fixing machine for surgical operation
JP2001061843A (en) * 1999-08-26 2001-03-13 Olympus Optical Co Ltd Ultrasonic needling lifter
JP2002159508A (en) * 2000-11-28 2002-06-04 Yamaguchi Technology Licensing Organization Ltd Identifying system of lesion in digestive organ
JP2002238913A (en) * 2001-02-14 2002-08-27 Kishino Shoji Forceps
JP2004105247A (en) * 2002-09-13 2004-04-08 Pentax Corp Magnetic anchor remotely guiding system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11033278B2 (en) 2017-11-08 2021-06-15 Mayo Foundation For Medical Education And Research Systems and methods for endoscopic submucosal dissection using magnetically attachable clips
US11350946B2 (en) 2017-11-08 2022-06-07 Mayo Foundation For Medical Education And Research Systems and methods for endoscopic submucosal dissection using magnetically attachable clips

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