JP2002017664A - Endo-therapy accessory elevator for endoscope - Google Patents
Endo-therapy accessory elevator for endoscopeInfo
- Publication number
- JP2002017664A JP2002017664A JP2000200738A JP2000200738A JP2002017664A JP 2002017664 A JP2002017664 A JP 2002017664A JP 2000200738 A JP2000200738 A JP 2000200738A JP 2000200738 A JP2000200738 A JP 2000200738A JP 2002017664 A JP2002017664 A JP 2002017664A
- Authority
- JP
- Japan
- Prior art keywords
- treatment
- treatment instrument
- endoscope
- treatment tool
- piece
- 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.)
- Withdrawn
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00064—Constructional details of the endoscope body
- A61B1/00071—Insertion part of the endoscope body
- A61B1/0008—Insertion part of the endoscope body characterised by distal tip features
- A61B1/00098—Deflecting means for inserted tools
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)
- Endoscopes (AREA)
- Surgical Instruments (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、内視鏡の挿入部
先端から外方に突出される処置具類の突出方向を変える
ための内視鏡の処置具起上装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a treatment instrument raising device for an endoscope for changing the direction in which treatment tools project outward from the distal end of an insertion portion of the endoscope.
【０００２】[0002]
【従来の技術】側方視型内視鏡などにおいては、一般
に、処置具挿通チャンネルに挿通された処置具の先端部
分の突出方向を変えるための処置具起上片が挿入部の先
端に配置されていて、挿入部内に挿通配置された起上片
操作ワイヤを介して、挿入部の基端に連結された操作部
からの遠隔操作により処置具起上片を作動させるように
なっている。2. Description of the Related Art In a side view type endoscope, a treatment instrument raising piece for changing a projecting direction of a distal end portion of a treatment instrument inserted into a treatment instrument insertion channel is generally arranged at a distal end of an insertion portion. The treatment instrument raising piece is operated by remote control from an operating section connected to the proximal end of the insertion section via a raising piece operation wire inserted through the insertion section.
【０００３】そのような内視鏡において、いわゆる高周
波処置具が用いられたときに、高周波電流が処置具起上
片に漏洩すると、挿入部の各部を構成する導電部材を経
由して高周波電流が操作部まで伝わり、術者が火傷をす
る恐れがある。In such an endoscope, when a so-called high-frequency treatment instrument is used, if the high-frequency current leaks to the treatment instrument raising piece, the high-frequency current is transmitted via conductive members constituting each part of the insertion section. It may be transmitted to the operation unit, and the operator may get burned.
【０００４】そこで従来は、処置具起上片をポリプロピ
レン等のような電気絶縁性の合成樹脂材で形成し、処置
具から処置具起上片への高周波電流漏洩を防止していた
（実開昭５７−６０６０１号等）。Therefore, conventionally, the treatment instrument raising piece is formed of an electrically insulating synthetic resin material such as polypropylene or the like to prevent high-frequency current leakage from the treatment tool to the treatment tool raising piece (actually opened). No. 57-60601).
【０００５】[0005]
【発明が解決しようとする課題】しかし、そのように処
置具起上片がポリプロピレン等のような電気絶縁性の合
成樹脂材で形成されていると、穿刺針等のように先端が
鋭い処置具や先端が硬い金属製の処置具等が通過するこ
とにより起上片が磨耗し、場合によっては処置具の先端
が起上片に突き刺さってしまう事故が発生するおそれが
ある。However, when the treatment instrument raising piece is made of an electrically insulating synthetic resin material such as polypropylene, the treatment instrument having a sharp tip such as a puncture needle. There is a possibility that an erecting piece may be worn due to the passage of a treatment tool or the like having a hard tip made of a metal, and in some cases, an accident may occur in which the tip of the treatment instrument pierces the erecting piece.
【０００６】そこで本発明は、高周波処置具を用いる際
の術者の火傷防止を図ると同時に、通過する処置具によ
って起上片が磨耗しない、安全で耐久性のある内視鏡の
処置具起上装置を提供することを目的とする。Accordingly, the present invention aims to prevent a surgeon from using a high-frequency treatment instrument and, at the same time, prevent a surgeon from being worn by a treatment instrument passing therethrough. It is intended to provide an upper device.
【０００７】[0007]
【課題を解決するための手段】上記の目的を達成するた
め、本発明の内視鏡の処置具起上装置は、処置具挿通チ
ャンネルに挿通された処置具の先端部分の突出方向を変
えるために、遠隔操作によって作動する処置具起上片が
挿入部の先端に配置された内視鏡の処置具起上装置にお
いて、処置具起上片の少なくとも処置具が接触する部分
をセラミックにより形成したものである。Means for Solving the Problems In order to achieve the above object, a treatment instrument raising device for an endoscope according to the present invention is provided for changing a projecting direction of a distal end portion of a treatment instrument inserted into a treatment instrument insertion channel. In a treatment tool raising device of an endoscope in which a treatment tool raising piece operated by remote control is arranged at the distal end of the insertion portion, at least a portion of the treatment tool raising piece that is in contact with the treatment tool is formed of ceramic. Things.
【０００８】なお、処置具起上片を回動自在に支持する
支軸が、処置具起上片の少なくとも処置具が接触する部
分と一体にセラミックにより形成されていてもよく、セ
ラミックがジルコニアであってもよい。The support shaft for rotatably supporting the treatment instrument raising piece may be formed of ceramic integrally with at least a portion of the treatment tool raising piece that contacts the treatment tool, and the ceramic is made of zirconia. There may be.
【０００９】そして、セラミック部分がモールド成形に
よって形成されていてもよい。[0009] The ceramic portion may be formed by molding.
【００１０】[0010]
【発明の実施の形態】図面を参照して本発明の実施例を
説明する。図５は内視鏡を示しており、可撓管によって
外装された挿入部１の先端側の部分には、挿入部１の基
端に連結された操作部３からの遠隔操作によって任意に
屈曲する湾曲部４が形成されている。６は、操作部３に
配置された湾曲操作ノブである。Embodiments of the present invention will be described with reference to the drawings. FIG. 5 shows an endoscope, in which a distal end portion of the insertion section 1 covered with a flexible tube is arbitrarily bent by a remote operation from an operation section 3 connected to a base end of the insertion section 1. A curved portion 4 is formed. Reference numeral 6 denotes a bending operation knob arranged on the operation unit 3.
【００１１】挿入部１内から湾曲部４内には、例えば四
フッ化エチレン樹脂チューブ等のような電気絶縁性のチ
ューブ材からなる処置具挿通チャンネル２が全長にわた
って挿通されており、挿入部１と操作部３との連結部付
近に突設された処置具挿入口７に処置具挿通チャンネル
２の基端が接続されている。処置具挿通チャンネル２の
先端は、挿入部１の先端部分１ａに位置している。A treatment tool insertion channel 2 made of an electrically insulating tube material such as an ethylene tetrafluoride resin tube is inserted through the entire length of the insertion section 1 from the insertion section 1 into the bending section 4. The proximal end of the treatment tool insertion channel 2 is connected to a treatment tool insertion port 7 protruding near the connection between the and the operation unit 3. The distal end of the treatment instrument insertion channel 2 is located at the distal end portion 1 a of the insertion section 1.
【００１２】処置具挿通チャンネル２内には各種の処置
具１００が挿通されるが、ここでは処置具１００とし
て、高周波電流を通じて処置を行ういわゆる高周波処置
具が挿通されている。Various kinds of treatment tools 100 are inserted into the treatment tool insertion channel 2. Here, a so-called high-frequency treatment tool for performing treatment through a high-frequency current is inserted as the treatment tool 100.
【００１３】処置具１００の先端部分１００ａは、挿入
部１の先端部分１ａから側方に突出するが、その突出方
向を変化させるための処置具起上片５が、挿入部１の先
端部分１ａに内蔵されている。処置具起上片５は、操作
部３に設けられた起上片操作ノブ８を操作することよっ
て作動する。The distal end portion 100a of the treatment instrument 100 projects laterally from the distal end portion 1a of the insertion portion 1, and the treatment instrument raising piece 5 for changing the projecting direction is attached to the distal end portion 1a of the insertion portion 1. It is built in. The treatment instrument raising piece 5 is operated by operating a raising piece operation knob 8 provided on the operation unit 3.
【００１４】図１は、処置具起上片５部分を示してお
り、１０は、挿入部１の先端部分１ａにおいて湾曲部４
の先端に連結された先端部本体であり、光軸が側方に向
けられた対物光学系や照明光学系等が、図１に示されな
い部分に内蔵されている。FIG. 1 shows a treatment instrument raising piece 5, and reference numeral 10 denotes a bending portion 4 at a distal end portion 1 a of the insertion portion 1.
In this embodiment, an objective optical system, an illumination optical system, and the like, the optical axes of which are directed sideways, are built in portions not shown in FIG.
【００１５】処置具起上片５は、先端部本体１０の側面
に開口する処置具突出口１１内に、支軸１２を中心に回
動自在に支持されており、自由端側に連結された起上片
操作ワイヤ１３を操作部３側から軸線方向に進退操作す
ることにより傾動する。The treatment instrument raising piece 5 is rotatably supported about a support shaft 12 in a treatment instrument protrusion 11 which is opened on a side surface of the distal end body 10 and is connected to a free end side. The raising and lowering operation wire 13 is tilted by being advanced and retracted in the axial direction from the operation unit 3 side.
【００１６】処置具突出口１１の底部には、後方から処
置具挿通チャンネル２が接続されており、処置具挿通チ
ャンネル２内に挿通された処置具２００の先端部分２０
０ａが処置具起上片５により突出方向を変える。処置具
２００としてここでは穿刺針が例示されている。A treatment tool insertion channel 2 is connected to the bottom of the treatment tool protrusion port 11 from behind, and a distal end portion 20 of the treatment tool 200 inserted into the treatment tool insertion channel 2.
0a changes the projecting direction by the treatment instrument raising piece 5. Here, a puncture needle is illustrated as the treatment tool 200.
【００１７】処置具起上片５は、ジルコニア、アルミ
ナ、窒化珪素セラミックス、炭化珪素セラミックス又は
酸化物系セラミックス等のようなセラミックによって形
成されている。そのようなセラミックは電気絶縁体であ
って硬くて強度があり、ジルコニア（Ｚｎ０2 ）等はそ
の点で特に優れている。The treatment instrument raising piece 5 is formed of a ceramic such as zirconia, alumina, silicon nitride ceramics, silicon carbide ceramics, or oxide ceramics. Such a ceramic is an electrical insulator and is hard and strong, and zirconia (ZnO 2 ) is particularly excellent in that respect.
【００１８】その結果、高周波電流が流される処置具１
００が用いられた場合には、処置具１００から処置具起
上片５に高周波電流が漏洩せず、操作部３を保持する術
者の漏洩高周波電流による火傷防止という電気安全性に
寄与する。As a result, the treatment instrument 1 through which the high-frequency current flows
When 00 is used, the high-frequency current does not leak from the treatment tool 100 to the treatment tool raising piece 5, which contributes to electrical safety such as prevention of burns caused by the leaked high-frequency current of the operator holding the operation unit 3.
【００１９】また、穿刺針等のような先端が尖った処置
具２００や先端が硬い金属製の処置具等が用いられた場
合でも、処置具起上片５が磨耗したり損傷せず、長期間
にわたって初期の起上性能を維持することができる。Even when a treatment tool 200 having a sharp tip such as a puncture needle or a metal treatment tool having a hard tip is used, the treatment tool raising piece 5 is not worn or damaged, and is long. The initial rising performance can be maintained over a period.
【００２０】なお、本発明は上記実施例に限定されるも
のではなく、例えば図２に単体で示されるように、処置
具起上片５は、少なくとも処置具１００，２００が接触
する部分５ａがセラミックで形成されていればよく、そ
の裏側の部分はステンレス鋼又はプラスチック材等であ
ってもよい。The present invention is not limited to the above-described embodiment. For example, as shown in FIG. 2 alone, the treatment tool raising piece 5 has at least a portion 5a where the treatment tools 100 and 200 come into contact. What is necessary is just to be formed with ceramics, and the part of the back side may be stainless steel or a plastic material.
【００２１】また、図３に示されるように、処置具起上
片５を回動自在に支持する支軸１２を、処置具起上片５
全体と一体にセラミックにより形成してもよく、図４に
示されるように、処置具起上片５のうちの処置具１０
０，２００が接触する部分５ａと一体にセラミックによ
り形成してもよい。As shown in FIG. 3, a support shaft 12 for rotatably supporting the treatment instrument raising piece 5 is attached to the treatment instrument raising piece 5.
The treatment tool 10 may be formed integrally with the whole body, as shown in FIG.
It may be formed of ceramic integrally with the portion 5a where 0, 200 contacts.
【００２２】この場合、セラミックとしてジルコニア等
を用いると、支軸１２を例えばペンチ等で摘んで曲げよ
うとしてもビクともしない程度の強度を得ることがで
き、セラミックの焼結体により形成するようにすれば、
モールド成形により容易に製造することができる。In this case, if zirconia or the like is used as the ceramic, it is possible to obtain a strength that does not make the shaft 12 bend even if it is picked and bent with, for example, pliers. if,
It can be easily manufactured by molding.
【００２３】[0023]
【発明の効果】本発明によれば、処置具起上片の少なく
とも処置具が接触する部分をセラミックで形成したこと
により、高周波電流処置具が用いられた場合には、処置
具から処置具起上片に高周波電流が漏洩しないので術者
の火傷防止が図られ、穿刺針等のような先端が尖った処
置具や先端が硬い金属製の処置具等が用いられた場合で
も、通過する処置具によって起上片が磨耗せずすぐれた
耐久性を確保することができる。According to the present invention, at least a portion of the treatment instrument raising piece which is in contact with the treatment instrument is formed of ceramic, so that when the high-frequency current treatment instrument is used, the treatment instrument is raised from the treatment instrument. Since the high-frequency current does not leak to the upper piece, the surgeon's burn is prevented, and even when a treatment tool with a sharp tip such as a puncture needle or a metal treatment tool with a hard tip is used, a treatment that passes through the treatment piece The tool makes it possible to ensure excellent durability without raising the erecting piece.
【図１】本発明の第１の実施例の内視鏡の処置具起上装
置部分の側面断面図である。FIG. 1 is a side sectional view of a treatment instrument raising device of an endoscope according to a first embodiment of the present invention.
【図２】本発明の第２の実施例の処置具起上片の斜視図
である。FIG. 2 is a perspective view of a treatment instrument raising piece according to a second embodiment of the present invention.
【図３】本発明の第３の実施例の処置具起上片の斜視図
である。FIG. 3 is a perspective view of a treatment instrument raising piece according to a third embodiment of the present invention.
【図４】本発明の第４の実施例の処置具起上片の斜視図
である。FIG. 4 is a perspective view of a treatment instrument raising piece according to a fourth embodiment of the present invention.
【図５】内視鏡の全体構成図である。FIG. 5 is an overall configuration diagram of the endoscope.
１ 挿入部 ２ 処置具挿通チャンネル ５ 処置具起上片 ５ａ 処置具が接触する部分 １１ 処置具突出口 １２ 支軸 １３ 起上片操作ワイヤ １００，２００ 処置具 DESCRIPTION OF SYMBOLS 1 Insertion part 2 Treatment tool insertion channel 5 Treatment tool raising piece 5a Part to which a treatment tool contacts 11 Treatment tool protrusion 12 Support shaft 13 Lifting piece operation wire 100, 200 Treatment tool
Claims (4)
の先端部分の突出方向を変えるために、遠隔操作によっ
て作動する処置具起上片が挿入部の先端に配置された内
視鏡の処置具起上装置において、 上記処置具起上片の少なくとも上記処置具が接触する部
分をセラミックにより形成したことを特徴とする内視鏡
の処置具起上装置。1. A treatment device for an endoscope in which a treatment instrument raising piece which is operated by remote control is disposed at a distal end of an insertion portion in order to change a projecting direction of a distal end portion of a treatment instrument inserted through a treatment instrument insertion channel. A treatment tool raising device for an endoscope, wherein at least a portion of the treatment tool raising piece that contacts the treatment tool is formed of ceramic.
軸が、上記処置具起上片の少なくとも上記処置具が接触
する部分と一体にセラミックにより形成されている請求
項１記載の内視鏡の処置具起上装置。2. A support shaft for rotatably supporting the treatment instrument raising piece is formed of ceramic integrally with at least a portion of the treatment instrument raising piece that contacts the treatment tool. Endoscope treatment instrument raising device.
１又は２記載の内視鏡の処置具起上装置。3. The endoscope treatment instrument raising apparatus according to claim 1, wherein the ceramic is zirconia.
て形成されている請求項１、２又は３記載の内視鏡の処
置具起上装置。4. The treatment tool raising device for an endoscope according to claim 1, wherein the ceramic portion is formed by molding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000200738A JP2002017664A (en) | 2000-07-03 | 2000-07-03 | Endo-therapy accessory elevator for endoscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000200738A JP2002017664A (en) | 2000-07-03 | 2000-07-03 | Endo-therapy accessory elevator for endoscope |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002017664A true JP2002017664A (en) | 2002-01-22 |
Family
ID=18698561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000200738A Withdrawn JP2002017664A (en) | 2000-07-03 | 2000-07-03 | Endo-therapy accessory elevator for endoscope |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002017664A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018070515A1 (en) * | 2016-10-14 | 2018-04-19 | Hoya株式会社 | Endoscopic cap, elevator, endoscope, method of removing endoscopic cap, and manufacturing method of endoscopic cap |
| WO2020238876A1 (en) * | 2019-05-30 | 2020-12-03 | 深圳开立生物医疗科技股份有限公司 | Endoscope head end seat and endoscope |
-
2000
- 2000-07-03 JP JP2000200738A patent/JP2002017664A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018070515A1 (en) * | 2016-10-14 | 2018-04-19 | Hoya株式会社 | Endoscopic cap, elevator, endoscope, method of removing endoscopic cap, and manufacturing method of endoscopic cap |
| CN109715039A (en) * | 2016-10-14 | 2019-05-03 | Hoya株式会社 | Endoscope-use lid, the manufacturing method for erecting platform, endoscope, the method for dismounting of endoscope-use lid and endoscope-use lid |
| WO2020238876A1 (en) * | 2019-05-30 | 2020-12-03 | 深圳开立生物医疗科技股份有限公司 | Endoscope head end seat and endoscope |
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