JP2001017386A - Instrument for medical treatment - Google Patents

Instrument for medical treatment

Info

Publication number
JP2001017386A
JP2001017386A JP11193043A JP19304399A JP2001017386A JP 2001017386 A JP2001017386 A JP 2001017386A JP 11193043 A JP11193043 A JP 11193043A JP 19304399 A JP19304399 A JP 19304399A JP 2001017386 A JP2001017386 A JP 2001017386A
Authority
JP
Japan
Prior art keywords
bending
slider
treatment
section
sheath
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.)
Pending
Application number
JP11193043A
Other languages
Japanese (ja)
Inventor
Yasushi Ogoshi
泰 大越
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Olympus Corp
Original Assignee
Olympus Optical Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Olympus Optical Co Ltd filed Critical Olympus Optical Co Ltd
Priority to JP11193043A priority Critical patent/JP2001017386A/en
Publication of JP2001017386A publication Critical patent/JP2001017386A/en
Pending legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00Instruments 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
    • A61B1/00064Constructional details of the endoscope body
    • A61B1/00071Insertion part of the endoscope body
    • A61B1/0008Insertion part of the endoscope body characterised by distal tip features
    • A61B1/00098Deflecting means for inserted tools

Landscapes

  • 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)
  • Surgical Instruments (AREA)
  • Endoscopes (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide an instrument for medical treatment which can be controlled with a single hand and allows the easy approach from a connecting direction. SOLUTION: The instrument for medical treatment, which has an elongated sheath which has a bending section to be bent by control of the bending control wire 11 at its front end, the treatment sections which are connected to the front end of the bending section and are activatable by a control wire 10 and a control section 3 which controls the curving part and the treatment sections, consists of a bending control slider 9 which moves the bending control wire 11 in an axial direction of the sheath 1a, a treatment section activating slider 8 which moves the control wire 10 of the treatment sections 2a and 2b in the axial direction of the sheath 1a and a slider fixing mechanism which is capable of fixing the bending control slider 9 to an arbitrary position. The bending control slider 9 and the treatment activating slider 8 are arranged coaxially at the control section 3 and the bending control slider 9 is fixed to an arbitrary position.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、体腔内に挿入して
治療を行う内視鏡用処置具に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a treatment tool for an endoscope which is inserted into a body cavity to perform treatment.

【0002】[0002]

【従来の技術】従来の医療用処置具として、例えば特開
平9−168540号公報が知られている。この医療用
処置具は、湾曲部を先端に有する細長のシースと、前記
湾曲部の先端に開閉可能に接続された処置部とを有し、
体腔内で前記湾曲部を湾曲させて前記処置部を所望の部
位に近づけ、前記処置部の開閉動作によって前記所望の
部位の組織を採取できるようになっている。
2. Description of the Related Art As a conventional medical treatment tool, for example, JP-A-9-168540 is known. This medical treatment tool has an elongated sheath having a curved portion at the distal end, and a treatment portion connected to the distal end of the curved portion so as to be openable and closable,
The treatment section is brought close to a desired site by bending the bending section in a body cavity, and the tissue at the desired site can be collected by opening and closing the treatment section.

【0003】この医療用処置具は、前記シースの手元側
の操作部に軸方向にスライド自在なスライダが設けら
れ、このスライダを手指によってスライドさせることに
より、処置部の生検カップを開閉できるようになってい
る。
[0003] In this medical treatment instrument, a slider slidable in the axial direction is provided on an operation portion on the proximal side of the sheath, and the biopsy cup of the treatment portion can be opened and closed by sliding the slider with fingers. It has become.

【0004】また、操作部には前記湾曲部を湾曲操作す
る回転つまみが設けられ、回転つまみを手指によって回
転することにより湾曲できるようになっている。
The operating section is provided with a rotary knob for bending the bending section, and can be bent by rotating the rotary knob with fingers.

【0005】[0005]

【発明が解決しようとする課題】しかしながら、前記の
ような内視鏡用処置具では、湾曲操作を行う時、片手で
操作部本体を持ち、もう片方の手で回転つまみを回して
湾曲操作を行っている。このため、例えば、管腔内を選
択的に挿入していく場合には、湾曲をかけたり、湾曲を
戻したりする湾曲操作が頻繁に行われるため、湾曲操作
を迅速に行うことができなく、また、手術の時間が多く
かかるという問題点があった。また、この操作をするた
めに両手を使わなければならないので、操作性が悪かっ
た。
However, in the treatment tool for an endoscope as described above, when performing the bending operation, the bending operation is performed by holding the operating portion main body with one hand and turning the rotary knob with the other hand. Is going. For this reason, for example, in the case of selectively inserting the lumen, a bending operation for applying a bending or returning a bending is frequently performed, so that the bending operation cannot be performed quickly, In addition, there is a problem that it takes much time for the operation. In addition, operability was poor because both hands had to be used to perform this operation.

【0006】本発明は、前記事情に着目してなされたも
ので、その目的とするところは、片手で操作が行え、接
続方向からのアプローチを容易に行うことができる医療
用処置具を提供することを目的としたものである。
The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a medical treatment tool which can be operated with one hand and can easily perform an approach from a connection direction. It is intended for that purpose.

【0007】[0007]

【課題を解決するための手段】本発明は、前記目的を達
成するために、湾曲操作ワイヤの操作によって湾曲する
湾曲部を先端に有する細長シースと、前記湾曲部の先端
に接続され、操作ワイヤによって作動可能な処置部と、
湾曲部及び処置部を操作する操作部とを有する医療用処
置具において、湾曲操作ワイヤをシースの軸方向に移動
させる湾曲操作スライダーと、処置部の操作ワイヤをシ
ースの軸方向に移動させる処置部作動スライダーと、湾
曲操作スライダーを任意の位置に固定可能なスライダー
固定機構とからなり、前記湾曲操作スライダーと処置部
作動スライダーを前記操作部に同軸上に配置し、湾曲操
作スライダーを任意の位置に固定するようにしたことを
特徴としている。
SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides an elongated sheath having a bending portion at the distal end which bends by operating a bending operation wire, and an operating wire connected to the distal end of the bending portion. A treatment unit operable by
In a medical treatment tool having a bending section and an operation section for operating a treatment section, a bending operation slider for moving a bending operation wire in an axial direction of a sheath, and a treatment section for moving an operation wire of the treatment section in an axial direction of the sheath. An operation slider and a slider fixing mechanism capable of fixing the bending operation slider to an arbitrary position, the bending operation slider and the treatment section operation slider are arranged coaxially on the operation section, and the bending operation slider is positioned at an arbitrary position. It is characterized by being fixed.

【0008】[0008]

【発明の実施の形態】以下、本発明の第一の実施形態に
ついて図1乃至図8に基づいて説明する。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS.

【0009】図1及び図2に示すように、医療用処置具
は大きく分けて可撓性を有する密巻きコイルからなる先
端シース1aと、その先端側に設けられた処置部2a,
2bと後端シース1bと操作部3とからなっている。先
端シース1aにはカバー4が固定され、このカバー4に
は枢着ピン4aによって、カバー4から突出する一対の
処置部2a,2bが開閉可能に枢着されている。
As shown in FIGS. 1 and 2, a medical treatment instrument is roughly divided into a distal sheath 1a made of a tightly wound coil having flexibility, and a treatment section 2a,
2b, a rear end sheath 1b, and an operation unit 3. A cover 4 is fixed to the distal sheath 1a, and a pair of treatment sections 2a and 2b protruding from the cover 4 is pivotally connected to the cover 4 by a pivot pin 4a so as to be openable and closable.

【0010】処置部2a,2bの開閉は図示しないリン
ク機構によって開閉が行われるようになっている。操作
部3には円柱状の操作部本体5が設けられ、この操作部
本体5の先端は接続部材6を介して後端シース1bと接
続されている。操作部本体5の基端には指掛けリング7
が固定されている。
The treatment sections 2a and 2b are opened and closed by a link mechanism (not shown). The operating section 3 is provided with a cylindrical operating section main body 5, and the distal end of the operating section main body 5 is connected to the rear end sheath 1 b via a connecting member 6. A finger ring 7 is provided at the base end of the operation unit body 5.
Has been fixed.

【0011】さらに、操作部本体5の同軸上には処置部
作動スライダー8と湾曲操作スライダー9が軸方向にス
ライド自在に嵌合されている。そして前記処置部2a,
2bのリンク機構には先端シース1a及び後端シース1
b内に挿通した処置部作動ワイヤ10の先端が固定さ
れ、後端は処置部作動スライダー8に接続されている。
そして、処置部作動スライダー8の操作によって処置部
作動ワイヤ10が押し引きされると、処置部2a,2b
が開閉されるようになっている。
A treatment section operation slider 8 and a bending operation slider 9 are fitted coaxially with the operation section main body 5 so as to be slidable in the axial direction. And the treatment section 2a,
The link mechanism 2b has a distal sheath 1a and a rear sheath 1
The distal end of the treatment section operation wire 10 inserted into the section b is fixed, and the rear end is connected to the treatment section operation slider 8.
When the treatment section operation wire 10 is pushed and pulled by the operation of the treatment section operation slider 8, the treatment sections 2a and 2b
Is opened and closed.

【0012】また、カバー4には湾曲操作ワイヤ11の
先端が固定され、この湾曲操作ワイヤ11の他端は湾曲
操作スライダー9に固定されている。
A distal end of a bending operation wire 11 is fixed to the cover 4, and the other end of the bending operation wire 11 is fixed to a bending operation slider 9.

【0013】従って、湾曲操作スライダー9を矢印方向
に押し引きすることにより、先端シース1aの先端部を
湾曲させることができるようになっている。
Therefore, by pushing and pulling the bending operation slider 9 in the direction of the arrow, the distal end of the distal sheath 1a can be curved.

【0014】操作部本体5について説明を加えると、図
3〜図6に示すように構成されている。すなわち、操作
部本体5には軸方向に沿ってすり割状の案内溝12が設
けられている。操作部本体5に嵌合される処置部作動ス
ライダー8の内側には径方向に2分割された処置部作動
スライダー固定部材14,15が設けられ、両固定部材
14,15間には処置部作動ワイヤ10の後端部に固定
されたワイヤ固定部16と係止する係合溝14a,15
aが設けられている。
The operation unit main body 5 will be described in more detail with reference to FIGS. 3 to 6. That is, the operating portion main body 5 is provided with a slot-shaped guide groove 12 along the axial direction. Inside the treatment section operation slider 8 fitted to the operation section main body 5, treatment section operation slider fixing members 14 and 15 divided into two parts in the radial direction are provided, and between the both fixing members 14 and 15, the treatment section operation slider is operated. Engagement grooves 14a, 15 for locking with wire fixing portion 16 fixed to the rear end of wire 10.
a is provided.

【0015】さらに、両固定部材14,15の一端部に
は雄ねじ部14b,15bが設けられ、この雄ねじ部1
4b,15bが処置部作動スライダー8の内周面に設け
られた雌ねじ部8aと螺合されて固定されている。ま
た、両固定部材14,15には前記案内溝12内に突出
する凸部14c,15cが設けられ、処置部作動スライ
ダー8を操作部本体5の軸方向に案内するようになって
いる。
Further, male threads 14b and 15b are provided at one end of the fixing members 14 and 15, respectively.
4b and 15b are screwed and fixed to the female screw portion 8a provided on the inner peripheral surface of the treatment section operation slider 8. The fixing members 14 and 15 are provided with projections 14c and 15c protruding into the guide groove 12 so as to guide the treatment section operation slider 8 in the axial direction of the operation section body 5.

【0016】操作部本体5に嵌合される湾曲操作スライ
ダー9の内側には径方向に2分割された湾曲操作スライ
ダー固定部材17,18が設けられ、両固定部材17,
18間には湾曲操作ワイヤ11の後端部に固定されたワ
イヤ固定部19と係止する係合溝17a,18aが設け
られている。さらに、このワイヤ固定部19には処置部
作動ワイヤ10を挿通する挿通孔20が設けられてい
る。
Inside the bending operation slider 9 fitted to the operation section main body 5, bending operation slider fixing members 17 and 18 divided into two in the radial direction are provided.
Engaging grooves 17a, 18a are provided between the bending operation wires 18 so as to be engaged with a wire fixing portion 19 fixed to the rear end of the bending operation wire 11. Further, the wire fixing portion 19 is provided with an insertion hole 20 through which the treatment portion operation wire 10 is inserted.

【0017】さらに、両固定部材17,18の一端部に
は雄ねじ部17b,18bが設けられ、この雄ねじ部1
7b,18bが湾曲操作スライダー9の内周面に設けら
れた雌ねじ部9aと螺合されて固定されている。また、
両固定部材17,18には前記案内溝12内に突出する
凸部17c,18cが設けられ、湾曲操作スライダー9
を操作部本体5の軸方向に案内するようになっている。
Further, male threads 17b and 18b are provided at one end of the fixing members 17 and 18, respectively.
7 b and 18 b are screwed and fixed to a female screw portion 9 a provided on the inner peripheral surface of the bending operation slider 9. Also,
The fixing members 17 and 18 are provided with protrusions 17c and 18c protruding into the guide groove 12, respectively.
Is guided in the axial direction of the operation section main body 5.

【0018】さらに、操作部本体5には案内溝12に沿
ってラチェット溝21が設けられており、ラチェット溝
21には湾曲操作スライダー固定部材17に配置された
ラチェット固定具22と噛み合うことによりラチェット
機構として働き、湾曲操作スライダー9を任意の位置に
固定するスライダー固定機構30を構成している。
Further, a ratchet groove 21 is provided in the operation portion main body 5 along the guide groove 12. The slider fixing mechanism 30 functions as a mechanism and fixes the bending operation slider 9 at an arbitrary position.

【0019】ここで、スライダー固定機構30のラチェ
ット固定具22について説明すると、図6(c)に示す
ように構成されている。湾曲操作スライダー固定部材1
7にはラチェット溝21に対向してねじ孔31が穿設さ
れ、このねじ孔31には外周面にねじ孔31に螺合され
るねじ部32aを有する筒体32が設けられている。筒
体32にはコイルばね33によってラチェット溝21方
向に付勢された係止部材34が進退自在に挿入されてい
る。係止部材34にはラチェット溝21に対して係脱自
在な係止部34aが設けられ、湾曲操作スライダー9を
任意の位置で固定できるようになっている。
Here, the ratchet fixing tool 22 of the slider fixing mechanism 30 will be described as shown in FIG. 6 (c). Bending operation slider fixing member 1
7 is provided with a screw hole 31 facing the ratchet groove 21, and the screw hole 31 is provided with a cylindrical body 32 having a screw portion 32 a screwed into the screw hole 31 on the outer peripheral surface. A locking member 34 urged in the direction of the ratchet groove 21 by a coil spring 33 is inserted into the cylinder 32 so as to be able to advance and retreat. The locking member 34 is provided with a locking portion 34a that is detachable from the ratchet groove 21 so that the bending operation slider 9 can be fixed at an arbitrary position.

【0020】図7に示すように、操作部本体5の湾曲操
作スライダー9より後方にはねじ部23が設けられ、こ
のねじ部23にはリング状の湾曲ストッパー24が螺合
されて前後動可能になっている。
As shown in FIG. 7, a screw portion 23 is provided behind the bending operation slider 9 of the operation portion main body 5, and a ring-shaped bending stopper 24 is screwed to the screw portion 23 to be able to move back and forth. It has become.

【0021】従って、図8に示すように、先端シース1
aの湾曲角度θを大きくするためには、湾曲ストッパー
24を回転して後退させ、湾曲角度θを小さくするため
には、湾曲ストッパー24を前進させればよい。
Therefore, as shown in FIG.
In order to increase the bending angle θ of “a”, the bending stopper 24 should be rotated and retracted, and to reduce the bending angle θ, the bending stopper 24 should be advanced.

【0022】このように、湾曲ストッパー24を設けて
いることで、過度の湾曲を防止でき、先端細長シース1
aの座屈を防ぐことができるという効果がある。
As described above, by providing the bending stopper 24, excessive bending can be prevented, and the distal end elongated sheath 1 can be prevented.
There is an effect that buckling of a can be prevented.

【0023】また、湾曲時の最大角度を任意に調整可能
なため、管腔内に選択的に挿入していく時、必要以上に
湾曲が必要ない場合、最大湾曲角度を低く設定すること
により、挿入しやすくなるという効果がある。
Further, since the maximum angle at the time of bending can be adjusted arbitrarily, when selectively inserting into a lumen, if the bending is not necessary more than necessary, the maximum bending angle is set low. This has the effect of making it easier to insert.

【0024】次に、本発明の第二の実施形態について図
9及び図10に基づいて説明するが、第一の実施形態と
同一構成部分は同一番号を付して説明を省略する。
Next, a second embodiment of the present invention will be described with reference to FIGS. 9 and 10. The same components as those in the first embodiment are denoted by the same reference numerals and description thereof will be omitted.

【0025】術者が処置具の湾曲操作を容易にするため
に、湾曲操作スライダー9の位置を処置部作動スライダ
ー8から前方へ離し、処置部作動スライダー8を把持し
た状態で湾曲操作スライダー9を、例えば親指で容易に
操作できるようにしたものである。本実施形態において
は、接続部材6に湾曲操作スライダー9が軸方向にスラ
イド自在に設けられている。
To facilitate the bending operation of the treatment tool, the surgeon moves the bending operation slider 9 forward from the treatment section operation slider 8 and holds the bending section slider 9 while holding the treatment section operation slider 8. For example, it can be easily operated with a thumb. In the present embodiment, a bending operation slider 9 is provided on the connection member 6 so as to be slidable in the axial direction.

【0026】このように片手で操作が行えるため、操作
性がよいという効果があるだけでなく、湾曲調整が迅速
且つ任意に行えるため、分岐している管腔内を選択的に
挿入していくことが容易にできるという効果もある。
As described above, since the operation can be performed with one hand, not only the effect of good operability is obtained, but also the curvature can be adjusted quickly and arbitrarily, so that the branch lumen is selectively inserted. There is also an effect that it can be easily performed.

【0027】さらに、本発明の第三の実施形態について
図11及び図12に基づいて説明するが、第一の実施形
態と同一構成部分は同一番号を付して説明を省略する。
Further, a third embodiment of the present invention will be described with reference to FIGS. 11 and 12, and the same components as those in the first embodiment will be denoted by the same reference numerals and description thereof will be omitted.

【0028】前記実施形態において、処置具の先端を湾
曲させると、湾曲操作ワイヤ11が弓の弦のように先端
シース1aから張り出すことになり、管腔内の分岐部に
処置具を挿入する時、邪魔になっていた。
In the above-described embodiment, when the distal end of the treatment instrument is bent, the bending operation wire 11 projects from the distal end sheath 1a like a bowstring, and the treatment instrument is inserted into the branch portion in the lumen. Sometimes it was in the way.

【0029】本実施形態は、前記湾曲操作ワイヤ11の
張り出しをなくすよう構成したものである。
In the present embodiment, the bending operation wire 11 is configured so as not to protrude.

【0030】すなわち、先端シース1aに複数の固定リ
ング部材25a、25bを固定し、湾曲操作ワイヤ11
を固定リング部材25a、25bの内周面を通るように
構成したものである。
That is, a plurality of fixing ring members 25a, 25b are fixed to the distal sheath 1a, and the bending operation wire 11 is fixed.
Through the inner peripheral surfaces of the fixing ring members 25a and 25b.

【0031】従って、処置具の先端を図12のように湾
曲させた時、湾曲操作ワイヤ11は先端シース1aに沿
った状態に位置するようになり、処置具を挿入する時、
邪魔になることがないという効果がある。
Therefore, when the distal end of the treatment tool is bent as shown in FIG. 12, the bending operation wire 11 is positioned along the distal sheath 1a, and when the treatment tool is inserted,
It has the effect of not getting in the way.

【0032】以上説明した実施の形態から、以下のよう
な構成を導き出すことができる。
From the embodiment described above, the following configuration can be derived.

【0033】(付記1)湾曲操作ワイヤの操作によって
湾曲する湾曲部を先端に有する細長シースと、前記湾曲
部の先端に接続され、操作ワイヤによって作動可能な処
置部と、湾曲部及び処置部を操作する操作部とを有する
医療用処置具において、湾曲操作ワイヤをシースの軸方
向に移動させる湾曲操作スライダーと、処置部の操作ワ
イヤをシースの軸方向に移動させる処置部作動スライダ
ーと、湾曲操作スライダーを任意の位置に固定可能なス
ライダー固定機構とからなり、前記湾曲操作スライダー
と処置部作動スライダーを前記操作部に同軸上に配置
し、湾曲操作スライダーを任意の位置に固定するように
したことを特徴とする医療用処置具。
(Supplementary Note 1) An elongated sheath having a bending portion at the distal end which bends by operating the bending operation wire, a treatment portion connected to the distal end of the bending portion and operable by the operation wire, and a bending portion and a treatment portion. In a medical treatment tool having an operation unit to be operated, a bending operation slider for moving a bending operation wire in an axial direction of a sheath, a treatment unit operating slider for moving an operation wire of a treatment unit in an axial direction of a sheath, and a bending operation A slider fixing mechanism capable of fixing a slider at an arbitrary position, wherein the bending operation slider and the treatment section operation slider are coaxially arranged on the operation section, and the bending operation slider is fixed at an arbitrary position. A medical treatment tool characterized by the above-mentioned.

【0034】(付記2)付記1において、湾曲操作ワイ
ヤを操作する湾曲操作スライダーの移動方向にストッパ
ーを設けたことを特徴とする医療用処置具。
(Supplementary note 2) The medical treatment tool according to supplementary note 1, wherein a stopper is provided in a moving direction of the bending operation slider for operating the bending operation wire.

【0035】(付記3)付記2において、湾曲ストッパ
ーは湾曲部の湾曲角度を任意に調整可能にするために移
動可能であることを特徴とする医療用処置具。
(Supplementary note 3) The medical treatment instrument according to Supplementary note 2, wherein the bending stopper is movable to allow the bending angle of the bending portion to be adjusted arbitrarily.

【0036】付記2,3によれば、湾曲角度を任意に固
定できるため、接線方向からの腫瘍へのアプローチを行
う場合、容易にアプローチができるという効果がある。
According to Supplementary Notes 2 and 3, since the bending angle can be arbitrarily fixed, there is an effect that the approach to the tumor from the tangential direction can be easily performed.

【0037】[0037]

【発明の効果】以上説明したように、本発明によれば、
湾曲操作スライダーを任意の位置に固定可能なスライダ
ー固定機構を設けることによって、片手で目的部位への
アプローチを容易に行え、操作性を向上できる。さら
に、湾曲操作スライダーと処置部作動スライダーを操作
部に同軸上に配置したことにより、湾曲調整が迅速に行
うことができるという効果を奏する。
As described above, according to the present invention,
By providing a slider fixing mechanism capable of fixing the bending operation slider at an arbitrary position, an approach to a target portion can be easily performed with one hand, and operability can be improved. Furthermore, by arranging the bending operation slider and the treatment section operation slider coaxially on the operation section, it is possible to perform the bending adjustment quickly.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明の第一の実施形態に係わり、処置具の湾
曲先端部の側面図。
FIG. 1 is a side view of a curved distal end portion of a treatment tool according to a first embodiment of the present invention.

【図2】同実施形態に係わり、処置具の湾曲操作部の側
面図。
FIG. 2 is a side view of the bending operation section of the treatment tool according to the embodiment.

【図3】同実施形態に係わり、図2のX方向から見た時
の側面図。
FIG. 3 is a side view of the embodiment when viewed from an X direction in FIG. 2;

【図4】同実施形態に係わり、湾曲操作スライダー部材
の縦断側面図。
FIG. 4 is a longitudinal sectional side view of the bending operation slider member according to the embodiment;

【図5】同実施形態に係わり、処置部作動スライダーの
縦断側面図。
FIG. 5 is a longitudinal sectional side view of a treatment section operation slider according to the embodiment.

【図6】同実施形態に係わり、(a)は図3のA−A線
に沿う断面図、(b)は図3のB−B線に沿う断面図、
(c)はラチェット固定具の断面図。
6A is a cross-sectional view taken along line AA of FIG. 3, FIG. 6B is a cross-sectional view taken along line BB of FIG. 3,
(C) is sectional drawing of a ratchet fixture.

【図7】同実施形態に係わり、湾曲ストッパー部を断面
した操作部の側面図。
FIG. 7 is a side view of the operation section in which the curved stopper section is sectioned according to the embodiment;

【図8】同実施形態に係わり、先端シースを湾曲した側
面図。
FIG. 8 is a side view of the embodiment, in which the distal sheath is curved.

【図9】本発明の第二の実施形態に係わり、操作部の側
面図。
FIG. 9 is a side view of an operation unit according to the second embodiment of the present invention.

【図10】同実施形態に係わり、湾曲ストッパー部を断
面した操作部の側面図。
FIG. 10 is a side view of the operation unit according to the embodiment, in which a curved stopper unit is sectioned;

【図11】本発明の第三の実施形態に係わり、先端シー
スの側面図。
FIG. 11 is a side view of a distal sheath according to the third embodiment of the present invention.

【図12】同実施形態に係わり、先端シースを湾曲した
側面図。
FIG. 12 is a side view of the same embodiment, in which the distal end sheath is curved.

【符号の説明】[Explanation of symbols]

1a…先端シース 2a,2b…処置部 3…操作部 5…操作部本体 8…処置部作動スライダー 9…湾曲操作スライダー 10…処置部作動ワイヤ 11…湾曲操作ワイヤ 24…湾曲ストッパー 1a: distal sheath 2a, 2b ... treatment section 3 ... operation section 5 ... operation section body 8 ... treatment section operation slider 9 ... bending operation slider 10 ... treatment section operation wire 11 ... bending operation wire 24 ... bending stopper

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】湾曲操作ワイヤの操作によって湾曲する湾
曲部を先端に有する細長シースと、 前記湾曲部の先端に接続され、操作ワイヤによって作動
可能な処置部と、 前記湾曲部及び処置部を操作する操作部とを有する医療
用処置具において、 前記湾曲操作ワイヤを前記シースの軸方向に移動させ、
前記湾曲部を湾曲させる湾曲操作スライダーと、 前記処置部の操作ワイヤを前記シースの軸方向に移動さ
せ、前記処置部を作動させる処置部作動スライダーと、 前記湾曲操作スライダーを任意の位置に固定可能なスラ
イダー固定機構とからなり、前記湾曲操作スライダーと
処置部作動スライダーを前記操作部に同軸上に配置する
とともに、前記スライダー固定機構によって前記湾曲操
作スライダーを任意の位置に固定できるようにしたこと
を特徴とする医療用処置具。
An elongated sheath having a distal end having a bending portion bent by operation of a bending operation wire, a treatment portion connected to the distal end of the bending portion and operable by an operation wire, and operating the bending portion and the treatment portion In the medical treatment tool having an operating portion to move the bending operation wire in the axial direction of the sheath,
A bending operation slider that bends the bending section; a treatment section operation slider that moves an operation wire of the treatment section in the axial direction of the sheath to operate the treatment section; and the bending operation slider can be fixed at an arbitrary position. The bending operation slider and the treatment section operating slider are arranged coaxially with the operation section, and the bending operation slider can be fixed at an arbitrary position by the slider fixing mechanism. Characteristic medical treatment tool.
JP11193043A 1999-07-07 1999-07-07 Instrument for medical treatment Pending JP2001017386A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11193043A JP2001017386A (en) 1999-07-07 1999-07-07 Instrument for medical treatment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11193043A JP2001017386A (en) 1999-07-07 1999-07-07 Instrument for medical treatment

Publications (1)

Publication Number Publication Date
JP2001017386A true JP2001017386A (en) 2001-01-23

Family

ID=16301233

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11193043A Pending JP2001017386A (en) 1999-07-07 1999-07-07 Instrument for medical treatment

Country Status (1)

Country Link
JP (1) JP2001017386A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005103271A (en) * 2003-09-29 2005-04-21 Ethicon Endo Surgery Inc Actuation mechanism for flexible endoscopic device
JP2007289709A (en) * 2006-04-25 2007-11-08 Ethicon Endo Surgery Inc Medical instrument having articulatable end effector
JPWO2010082399A1 (en) * 2009-01-15 2012-07-05 オリンパスメディカルシステムズ株式会社 Endoscopic treatment tool
JP2014184011A (en) * 2013-03-23 2014-10-02 River Seikoo:Kk Medical treatment instrument
JP2015521904A (en) * 2012-06-28 2015-08-03 エシコン・エンド−サージェリィ・インコーポレイテッドEthicon Endo−Surgery,Inc. Differential fixed configuration for rotationally powered surgical instruments
US11911002B2 (en) 2017-06-22 2024-02-27 Olympus Corporation Overtube device

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005103271A (en) * 2003-09-29 2005-04-21 Ethicon Endo Surgery Inc Actuation mechanism for flexible endoscopic device
JP4652005B2 (en) * 2003-09-29 2011-03-16 エシコン・エンド−サージェリィ・インコーポレイテッド Actuating mechanism of flexible endoscope apparatus
JP2007289709A (en) * 2006-04-25 2007-11-08 Ethicon Endo Surgery Inc Medical instrument having articulatable end effector
JPWO2010082399A1 (en) * 2009-01-15 2012-07-05 オリンパスメディカルシステムズ株式会社 Endoscopic treatment tool
US8545394B2 (en) 2009-01-15 2013-10-01 Olympus Medical Systems Corp. Selective cannulation method for luminal tissue having branch section
JP2015521904A (en) * 2012-06-28 2015-08-03 エシコン・エンド−サージェリィ・インコーポレイテッドEthicon Endo−Surgery,Inc. Differential fixed configuration for rotationally powered surgical instruments
JP2014184011A (en) * 2013-03-23 2014-10-02 River Seikoo:Kk Medical treatment instrument
US11911002B2 (en) 2017-06-22 2024-02-27 Olympus Corporation Overtube device

Similar Documents

Publication Publication Date Title
WO2012114786A1 (en) Therapeutic tool for endoscopes
EP2147638B1 (en) Endoscopically inserting surgical tool
JP5296274B1 (en) Endoscopic treatment tool
US5084054A (en) Surgical gripping instrument
JP4965005B2 (en) Endoscopy forceps
JP4056989B2 (en) Endoscopic treatment tool
JP2000023996A (en) Electrode instrument for microwave operation
JPH09299323A (en) Treatment tool guide means for endoscope
JP2002051974A (en) Endoscope manipulator
JP2007151595A (en) Endoscope therapeutic device
EP2022431B1 (en) Operation section structure of treatment instrument for endoscopic use
EP1985251A2 (en) Endoscopic treatment tool
WO2012118011A1 (en) Treatment tool for endoscope
US20210338046A1 (en) Endoscope treatment tool and endoscope system
JPH067366A (en) Gripping forceps
US20090247822A1 (en) Endoscope treatment instrument
JP2002253563A (en) Treatment instrument for endoscope
JP2001017386A (en) Instrument for medical treatment
US6162207A (en) Operating unit for endoscopic treatment tool
JP2001170063A (en) Operation instrument for endoscopic treatment tool
JP4059739B2 (en) Expandable grasping forceps
JP2545614Y2 (en) Intracavity treatment device
JP3732911B2 (en) Endoscopic treatment tool
CN220236946U (en) Endoscopic tracheoma snare
JPS62253041A (en) Treatment jig for endoscope

Legal Events

Date Code Title Description
A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20040630

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20040831

A02 Decision of refusal

Free format text: JAPANESE INTERMEDIATE CODE: A02

Effective date: 20050104