JP3810177B2 - Endoscope system - Google Patents

Endoscope system Download PDF

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Publication number
JP3810177B2
JP3810177B2 JP07197797A JP7197797A JP3810177B2 JP 3810177 B2 JP3810177 B2 JP 3810177B2 JP 07197797 A JP07197797 A JP 07197797A JP 7197797 A JP7197797 A JP 7197797A JP 3810177 B2 JP3810177 B2 JP 3810177B2
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Japan
Prior art keywords
endoscope
biopsy forceps
endoscope system
treatment
treatment instrument
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JP07197797A
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Japanese (ja)
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JPH10262900A (en
Inventor
英之 安達
康夫 平田
勇実 平尾
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Olympus Corp
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Olympus Corp
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    • 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

Description

【０００１】
【発明の属する技術分野】
この発明は、体腔内を観察・治療するための内視鏡システムに関する。
【０００２】
【従来の技術】
従来、内視鏡的処置を行う場合、内視鏡を保持操作する術者と、処置具を保持操作する助手との共同作業で行われている。近年、この内視鏡的処置も高度で複雑な処置を行うことになり、従来の方法では術者の意志通りに助手が処置操作を行えるようになるには相当の熟練が必要となってきている。
【０００３】
そこで、操作性向上を目的として内視鏡、もしくは処置具それぞれでは操作の電動化が各種提案されているが、術者の操作勝手を考慮したシステムの提案はなかった。
【０００４】
【発明が解決しようとする課題】
この発明は、複雑な内視鏡的処置を容易に行え、また処置具が誤ってチャンネル、内視鏡等を損傷することがない内視鏡システムの提供することにある。
【０００５】
【課題を解決するための手段】
この発明は、前記目的を達成するために、鉗子挿入孔を有する内視鏡と、アクチュエータ手段により駆動する処置具と、前記アクチュエータ手段の動作制御を行う制御部とを備えた内視鏡システムにおいて、前記鉗子挿入孔の一部に前記処置具が完全に挿通されたことを検出する検出手段を設け、この検出手段が、前記鉗子挿入孔に前記処置具が完全に挿通されたことを検出するまでは、該検出手段の信号によって前記制御部からアクチュエータ手段の駆動を禁止する安全機構を備えたことを特徴とする。
【０００６】
【発明の実施の形態】
以下、この発明の各実施の形態を図面に基づいて説明する。
【０００７】
図１〜図８は第１の実施形態を示し、図１は内視鏡システムの全体構成を示し、図６は内視鏡の先端部の縦断側面図である。内視鏡システムは、図１に示すように、内視鏡１は先端湾曲部を持つ挿入部２と、操作部３とから構成されている。操作部３は外部に設置された光源装置４、カメラコントロールユニット（以下、ＣＣＵという）５にケーブル６で連結されている。ＣＣＵ５はＴＶモニター７に接続されている。操作部３には先端湾曲部を操作するために操作ノブ８が設けられている。
【０００８】
また、図６に示すように、内視鏡１には処置具挿通用のチャンネル５６が設けられており、このチャンネル５６内に、各種形態の処置具としての生検鉗子５４を挿通して患部の処置を行うことができるようになっている。
【０００９】
本実施形態では、電動で開閉、湾曲動作する生検鉗子５４が使用されている。生検鉗子５４の近位端は外部の処置具駆動制御装置（以下、駆動制御装置という）１１に接続されている。駆動制御装置１１は操作部３と接続コード１２で接続されている。この接続コード１２は操作部３に対して着脱自在になっており、電動処置具でない従来の処置具を使用する時は外した状態で使用できる。
【００１０】
図１及び図６に示すように、内視鏡１の挿入部２の先端部５３には生検鉗子５４を挿通でき、手元側のチャンネル挿通孔５５まで連通するチャンネル５６と、鉗子起上台５７が設けられている。鉗子起上台５７は、ワイヤー５８に連結され、ワイヤー５８を矢印方向に引張ることで鉗子起上台５７は起上し、生検鉗子５４を起立できるようになっている。
【００１１】
チャンネル５６の終端部５６ａ（すなわち、生検鉗子５４が突出する直前の部分）の周壁には、受光素子５９が設けられ、後述する受光信号をリード線６０で手元側の操作部３へ伝送するようになっている。
【００１２】
次に、内視鏡１と組み合わせ使用する生検鉗子５４について説明する。図２〜図５及び図７に示すように、生検鉗子５４には可撓管６１が設けられている。この可撓管６１の先端部には生体組織等を把持する把持部６２が設けられている。一方、生検鉗子５４の基端部は、図１に示す駆動制御装置１１に接続されている。また、可撓管６１内には把持部６２の開閉用のワイヤー６３が設けられている。
【００１３】
図４に示すように、ワイヤー６３の基端部にはラックアンドピニオン機構６４が接続され、駆動制御装置１１内でモータ６５の回転機構によりワイヤー６３を押し引きし、把持部６２を開閉するようになっている。また、図３，図５に示すように、可撓管６１内における先端部側には曲げ形状を記憶したＳＭＡからなる例えばワイヤー状の一対の湾曲駆動部材６６，６７が可撓管６１の軸心に対して線対称の位置に配設される。さらに湾曲駆動部材６６，６７には各々独立に通電加熱できるようにリード線６８、６８が接続されている。
【００１４】
そして、各湾曲駆動部材６６，６７の通電加熱時の形状変化により、可撓管６１の先端部を湾曲操作できるようになっている。なお、リード線６８，６８の基端部は、図１に示す外部の駆動制御装置１１に接続されている。
【００１５】
さらに、図２に示すように、生検鉗子５４の湾曲部後方には発光手段６９が設けられている。発光手段６９は手元側から導びいた光ファイバーを可撓管６１の外周上で周方向に丸めてある。この周方向に丸めた部分はコア材７０のみからなる。
【００１６】
このように構成された内視鏡システムは、内視鏡操作者が、内視鏡１を患者の消化管等に挿入する。そして生検等の処置が必要となった場合、駆動制御装置１１に接続された生検鉗子５４を、チャンネル挿通孔５５に介してチャンネル５６内に挿入する。生検鉗子５４の湾曲部後方の発光手段６９から発光しており、生検鉗子５４がチャンネル５６の終端部を通過した時点で受光素子５９がこの光を感知する。この信号はリード線６０により手元側の操作部３に送られ、接続ケーブル６を介して駆動制御装置１１に送られる。
そして、図８に示すように、駆動制御装置１１内の検出回路１１ａ、処置具駆動制御部１１ｂに送られる。そして、この信号伝達により、内視鏡１、操作ノブ８に設けた処置具操作スイッチとしての開閉用スイッチ２２、湾曲操作スイッチ２３は作動可能となる。
【００１７】
このため、操作者は、生検鉗子５４が目的処置部へ到達したら開閉用スイッチ２２により、生検鉗子５４、把持部６２の開閉操作を行う。また、湾曲操作スイッチ２３により、生検鉗子５４、可撓管６１の湾曲操作をして目的とする患部の処置を行なう。
【００１８】
この実施形態によれば、複雑な内視鏡的処置を容易に行え、またチャンネル５６から突出するまで生検鉗子５４を作動できないため、生検鉗子５４が誤ってチャンネル５６、内視鏡１等を損傷することがない。
【００１９】
なお、発光手段として、光ファイバーを用いたものを説明したが、これに限定されることなく、例えば、図９及び図１０に示すようにＬＥＤ７１を生検鉗子５４の湾曲部の後方に設けても良い。
【００２０】
図１１及び図１２は第２の実施形態を示し、第１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。第１の実施形態が処置具外表面の発光部からの光をチャンネル終端部に設けた受光素子で検出していたのに代え、本実施形態では、処置具外表面の濃淡を変化させている。すなわち、生検鉗子７２の外表面は湾曲部７３とその後方部７４で色（濃淡）を変化させている。例えば湾曲部７３は淡色、湾曲部７３より後方部７４は濃色としている。
【００２１】
一方、内視鏡１の先端部５３のチャンネル５６の終端部には生検鉗子７２の外表面の濃淡を読み取るＣＣＤ、ＣｄＳ等より成る電荷蓄積素子７５が設けられ、リード線６０により検出信号を手元側へ送るようになっている。
【００２２】
第１の実施形態と同じく、操作者は、処置が必要となった場合、駆動制御装置１１に接続した生検鉗子７２を内視鏡１のチャンネル５６内に挿入する。そして生検鉗子７２の湾曲部７３の後方部７４が電荷蓄積素子７５上を通過し、濃淡が変化（淡→濃）すると、電荷蓄積素子７５はこれを読み取り、リード線６０により検出信号を手元側へ送信する。そして、この信号は接続ケーブル１２を介して駆動制御装置１１内の検出回路１１ａ、処置具駆動制御部１１ｂに送られる。そして、この信号伝達により内視鏡１の操作部３に設けた開閉用スイッチ２２、湾曲操作スイッチ２３は作動可能となり、操作者は目的患部を処置可能となる。したがって、第１の実施形態の効果に加え、処置具側の構成が簡単となる。
【００２３】
図１３及び図１４は第３の実施形態を示し、第１，２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。図１３に示すように、生検鉗子５４の手元側押し込み部には、生検鉗子５４の把持部６２がチャンネル５６から完全に突出する押し込み量に相当する位置に、開閉用バーコード７６が設けられている。同じく、生検鉗子５４の湾曲駆動部材６６，６７がチャンネル５６から完全に突出する押し込み量に相当する位置には、湾曲用バーコード７７が設けられている。
【００２４】
一方、内視鏡１の鉗子孔７８の入口部には前記開閉用バーコード７６、湾曲用バーコード７７を読み取るためのバーコードリーダ７９が設けられている。そして読み取った信号は接続ケーブル１２を介して駆動制御装置１１に送られ、操作部３に設けた開閉用スイッチ２２、湾曲操作スイッチ２３の駆動制御を行なえるようになっている。
【００２５】
このように構成された内視鏡システムは、操作者が処置を必要とした場合、生検鉗子５４を鉗子孔７８に挿入する。そして、生検鉗子５４の手元側の開閉用バーコード７６がバーコードリーダ７９を通過すると、これを読み取り、第１，２の実施形態と同じく接続ケーブル１２を介して信号が駆動制御装置１１に送られる。この時、生検鉗子５４の把持部６２はチャンネル５６より突出している。そして操作部３に設けた開閉用スイッチ２２が作動可能となり、術者は把持部６２の開閉が行なえる。
【００２６】
一方、生検鉗子５４の手元側をさらに押し込むと、開閉用バーコード７６がバーコードリーダ７９を通過し、バーコードリーダ７９がこれを読み取る。そして第１，２の実施形態と同じく接続ケーブル１２を介して信号が駆動制御装置１１に送られる。この時、生検鉗子５４の湾曲駆動部材６６，６７は、チャンネル５６より突出している。そして、操作部３に設けた湾曲操作スイッチ２３が作動可能となり、術者は把持鉗子５４の湾曲操作が行なえる。そして、術者は目的とする患部を処置可能となる。
【００２７】
なお、第１〜第３の実施形態では、処置具として生検鉗子５４について述べたが、これに限定されることなく、各種処置具が適用できる。また処置具の駆動機構（開閉、湾曲）としてＳＭＡ、モータ等を用いたものについて説明したが、これに限定されることなく、圧電アクチュエータ、ケモメカニカルアクチュエータ等、各種の駆動機構が利用できる。
【００２８】
【発明の効果】
この発明によれば、複雑な内視鏡的処置を容易に行え、またチャンネルから処置具が突出するまで処置具が作動しないため、処置具が誤ってチャンネル、内視鏡等を損傷することがないという効果がある。
【図面の簡単な説明】
【図１】この発明の第１の実施形態を示す内視鏡システム全体の斜視図。
【図２】同実施形態の処置具の側面図。
【図３】同実施形態の処置具の縦断側面図。
【図４】同実施形態のラックアンドピニオン機構の側面図。
【図５】図３のＡ−Ａ線に沿う断面図。
【図６】同実施形態の内視鏡の先端部の縦断側面図。
【図７】同実施形態の生検鉗子の斜視図。
【図８】同実施形態の作用を示すブロック図。
【図９】同実施形態の変形例を示す生検鉗子の側面図。
【図１０】図９のＢ−Ｂ線に沿う断面図。
【図１１】この発明の第２の実施形態を示す処置具の側面図。
【図１２】同実施形態の内視鏡の先端部の縦断側面図。
【図１３】この発明の第３の実施形態を示す操作部の斜視図。
【図１４】同実施形態の操作部の縦断側面図。
【符号の説明】
１…内視鏡、２…挿入部、３…操作部、１１…駆動制御装置（制御部）、５４…生検鉗子（処置具）、５６…チャンネル（鉗子挿入孔）、５９…受光素子、６９…発光素子[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an endoscope system for observing and treating the inside of a body cavity.
[0002]
[Prior art]
Conventionally, when performing an endoscopic treatment, it has been carried out by a collaborative work between an operator holding and operating an endoscope and an assistant holding and operating a treatment instrument. In recent years, this endoscopic procedure is also an advanced and complicated procedure, and in the conventional method, considerable skill is required for an assistant to perform a procedure operation according to the will of the surgeon.
[0003]
Therefore, various types of motorized operation have been proposed for each endoscope or treatment tool for the purpose of improving operability, but there has been no proposal of a system that takes into account the operator's ease of operation.
[0004]
[Problems to be solved by the invention]
SUMMARY OF THE INVENTION An object of the present invention is to provide an endoscope system that can easily perform complicated endoscopic procedures and that does not accidentally damage channels, endoscopes, etc. by a treatment instrument.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides an endoscope system including an endoscope having a forceps insertion hole, a treatment tool driven by an actuator means, and a control unit that controls the operation of the actuator means. , detecting means for detecting that the treatment instrument to a portion of the forceps insertion hole is completely inserted is provided, the detecting means detects that the treatment instrument into the forceps insertion hole is fully inserted until it is characterized by comprising a safety mechanism that prohibits driving of the actuator means from the control unit by a signal of said detecting means.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
[0007]
FIGS. 1-8 shows 1st Embodiment, FIG. 1 shows the whole endoscope system structure, FIG. 6 is a vertical side view of the front-end | tip part of an endoscope. In the endoscope system, as shown in FIG. 1, the endoscope 1 includes an insertion portion 2 having a distal end bending portion and an operation portion 3. The operation unit 3 is connected to a light source device 4 and a camera control unit (hereinafter referred to as CCU) 5 installed outside by a cable 6. The CCU 5 is connected to the TV monitor 7. The operation section 3 is provided with an operation knob 8 for operating the distal end bending section.
[0008]
As shown in FIG. 6, the endoscope 1 is provided with a channel 56 for inserting a treatment tool, and a biopsy forceps 54 as a treatment tool of various forms is inserted into the channel 56 to affect the affected part. It is possible to perform the treatment.
[0009]
In this embodiment, a biopsy forceps 54 that is electrically opened / closed and bent is used. The proximal end of the biopsy forceps 54 is connected to an external treatment instrument drive control device (hereinafter referred to as drive control device) 11. The drive control device 11 is connected to the operation unit 3 by a connection cord 12. This connection cord 12 is detachable with respect to the operation unit 3, and can be used in a removed state when using a conventional treatment instrument that is not an electric treatment instrument.
[0010]
As shown in FIGS. 1 and 6, a biopsy forceps 54 can be inserted into the distal end portion 53 of the insertion portion 2 of the endoscope 1, and a channel 56 communicating with the channel insertion hole 55 on the proximal side, and a forceps raising base 57. Is provided. The forceps raising base 57 is connected to a wire 58, and the forceps raising base 57 is raised by pulling the wire 58 in the direction of the arrow so that the biopsy forceps 54 can be raised.
[0011]
A light receiving element 59 is provided on the peripheral wall of the terminal portion 56a of the channel 56 (that is, the portion immediately before the biopsy forceps 54 protrudes), and a light receiving signal to be described later is transmitted to the operation unit 3 on the hand side via the lead wire 60. It is like that.
[0012]
Next, the biopsy forceps 54 used in combination with the endoscope 1 will be described. As shown in FIGS. 2 to 5 and 7, the biopsy forceps 54 is provided with a flexible tube 61. A grip portion 62 that grips a living tissue or the like is provided at the distal end portion of the flexible tube 61. On the other hand, the proximal end portion of the biopsy forceps 54 is connected to the drive control device 11 shown in FIG. In addition, a wire 63 for opening and closing the grip portion 62 is provided in the flexible tube 61.
[0013]
As shown in FIG. 4, a rack and pinion mechanism 64 is connected to the proximal end portion of the wire 63 so that the wire 63 is pushed and pulled by the rotation mechanism of the motor 65 in the drive control device 11 to open and close the grip portion 62. It has become. As shown in FIGS. 3 and 5, for example, a pair of wire-shaped bending drive members 66 and 67 made of SMA storing a bending shape are provided on the distal end side in the flexible tube 61. It is arranged in a line symmetrical position with respect to the heart. Furthermore, lead wires 68 and 68 are connected to the bending drive members 66 and 67 so that they can be energized and heated independently.
[0014]
And the bending | flexion operation of the front-end | tip part of the flexible tube 61 can be performed now by the shape change at the time of the energization heating of each bending drive member 66,67. The base ends of the lead wires 68 are connected to the external drive control device 11 shown in FIG.
[0015]
Further, as shown in FIG. 2, a light emitting means 69 is provided behind the curved portion of the biopsy forceps 54. The light emitting means 69 is obtained by rounding an optical fiber guided from the hand side in the circumferential direction on the outer periphery of the flexible tube 61. The portion rounded in the circumferential direction is composed only of the core material 70.
[0016]
In the endoscope system configured as described above, an endoscope operator inserts the endoscope 1 into a patient's digestive tract or the like. Then, when treatment such as biopsy becomes necessary, the biopsy forceps 54 connected to the drive control device 11 is inserted into the channel 56 through the channel insertion hole 55. Light is emitted from the light emitting means 69 behind the curved portion of the biopsy forceps 54, and the light receiving element 59 senses this light when the biopsy forceps 54 passes through the end portion of the channel 56. This signal is sent to the operation unit 3 on the hand side through the lead wire 60 and sent to the drive control device 11 through the connection cable 6.
And as shown in FIG. 8, it sends to the detection circuit 11a in the drive control apparatus 11, and the treatment tool drive control part 11b. By this signal transmission, the opening / closing switch 22 and the bending operation switch 23 as the treatment instrument operation switches provided on the endoscope 1 and the operation knob 8 can be operated.
[0017]
For this reason, when the biopsy forceps 54 reaches the target treatment portion, the operator performs an opening / closing operation of the biopsy forceps 54 and the grip portion 62 by the opening / closing switch 22. In addition, the bending operation switch 23 performs a bending operation on the biopsy forceps 54 and the flexible tube 61 so as to treat the target affected area.
[0018]
According to this embodiment, a complicated endoscopic treatment can be easily performed, and the biopsy forceps 54 cannot be operated until it protrudes from the channel 56. Therefore, the biopsy forceps 54 is erroneously inserted into the channel 56, the endoscope 1, etc. Will not be damaged.
[0019]
In addition, although the thing using an optical fiber was demonstrated as a light emission means, it is not limited to this, For example, as shown in FIG.9 and FIG.10, even if LED71 is provided in the back of the curved part of the biopsy forceps 54, FIG. good.
[0020]
11 and 12 show a second embodiment, and the same components as those of the first embodiment are denoted by the same reference numerals and description thereof is omitted. Instead of detecting light from the light emitting portion on the outer surface of the treatment instrument with the light receiving element provided at the channel end portion in the first embodiment, in this embodiment, the shade on the outer surface of the treatment instrument is changed. . That is, the outer surface of the biopsy forceps 72 is changed in color (shading) by the curved portion 73 and the rear portion 74 thereof. For example, the curved portion 73 is light and the rear portion 74 of the curved portion 73 is dark.
[0021]
On the other hand, a charge storage element 75 composed of a CCD, CdS, or the like that reads the density of the outer surface of the biopsy forceps 72 is provided at the terminal end of the channel 56 of the distal end portion 53 of the endoscope 1, and a detection signal is sent by a lead wire 60. It is to be sent to the hand side.
[0022]
Similar to the first embodiment, when treatment is required, the operator inserts the biopsy forceps 72 connected to the drive control device 11 into the channel 56 of the endoscope 1. Then, when the rear portion 74 of the curved portion 73 of the biopsy forceps 72 passes over the charge storage element 75 and the density changes (light → dark), the charge storage element 75 reads this, and the detection signal is received by the lead wire 60. To the side. This signal is sent to the detection circuit 11a and the treatment instrument drive control unit 11b in the drive control device 11 via the connection cable 12. Then, by this signal transmission, the opening / closing switch 22 and the bending operation switch 23 provided in the operation unit 3 of the endoscope 1 can be operated, and the operator can treat the target affected part. Therefore, in addition to the effects of the first embodiment, the configuration on the treatment instrument side is simplified.
[0023]
13 and 14 show a third embodiment, and the same components as those in the first and second embodiments are denoted by the same reference numerals and description thereof is omitted. As shown in FIG. 13, an opening / closing barcode 76 is provided at a position corresponding to the pushing amount at which the gripping portion 62 of the biopsy forceps 54 completely protrudes from the channel 56 at the proximal pushing portion of the biopsy forceps 54. It has been. Similarly, a bending bar code 77 is provided at a position corresponding to the pushing amount at which the bending drive members 66 and 67 of the biopsy forceps 54 completely protrude from the channel 56.
[0024]
On the other hand, a bar code reader 79 for reading the opening / closing bar code 76 and the bending bar code 77 is provided at the entrance of the forceps hole 78 of the endoscope 1. The read signal is sent to the drive control device 11 via the connection cable 12 so that the drive control of the opening / closing switch 22 and the bending operation switch 23 provided in the operation unit 3 can be performed.
[0025]
The endoscope system configured as described above inserts the biopsy forceps 54 into the forceps hole 78 when the operator needs treatment. When the open / close barcode 76 on the proximal side of the biopsy forceps 54 passes through the barcode reader 79, the barcode is read and a signal is sent to the drive control device 11 via the connection cable 12 as in the first and second embodiments. Sent. At this time, the gripping portion 62 of the biopsy forceps 54 protrudes from the channel 56. Then, the opening / closing switch 22 provided in the operation unit 3 can be operated, and the operator can open and close the grasping unit 62.
[0026]
On the other hand, when the proximal side of the biopsy forceps 54 is further pushed in, the open / close barcode 76 passes through the barcode reader 79, and the barcode reader 79 reads it. Then, a signal is sent to the drive control device 11 through the connection cable 12 as in the first and second embodiments. At this time, the bending drive members 66 and 67 of the biopsy forceps 54 protrude from the channel 56. Then, the bending operation switch 23 provided in the operation unit 3 can be operated, and the operator can perform the bending operation of the grasping forceps 54. Then, the surgeon can treat the target affected part.
[0027]
In the first to third embodiments, the biopsy forceps 54 has been described as the treatment tool, but various treatment tools can be applied without being limited thereto. Moreover, although what used SMA, a motor, etc. was demonstrated as a drive mechanism (opening / closing, bending) of a treatment tool, it is not limited to this, Various drive mechanisms, such as a piezoelectric actuator and a chemomechanical actuator, can be utilized.
[0028]
【The invention's effect】
According to the present invention, a complicated endoscopic treatment can be easily performed, and the treatment tool does not operate until the treatment tool protrudes from the channel. Therefore, the treatment tool may damage the channel, the endoscope, etc. by mistake. There is no effect.
[Brief description of the drawings]
FIG. 1 is a perspective view of an entire endoscope system showing a first embodiment of the present invention.
FIG. 2 is a side view of the treatment tool of the embodiment.
FIG. 3 is a longitudinal side view of the treatment instrument of the embodiment.
FIG. 4 is a side view of the rack and pinion mechanism of the embodiment.
5 is a cross-sectional view taken along line AA in FIG.
FIG. 6 is a longitudinal side view of a distal end portion of the endoscope according to the embodiment.
FIG. 7 is a perspective view of the biopsy forceps according to the embodiment.
FIG. 8 is a block diagram showing the operation of the embodiment.
FIG. 9 is a side view of a biopsy forceps showing a modification of the embodiment.
10 is a cross-sectional view taken along line BB in FIG.
FIG. 11 is a side view of a treatment tool showing a second embodiment of the present invention.
FIG. 12 is a longitudinal side view of the distal end portion of the endoscope according to the embodiment.
FIG. 13 is a perspective view of an operation unit showing a third embodiment of the present invention.
FIG. 14 is a longitudinal side view of the operation unit of the embodiment.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Endoscope, 2 ... Insertion part, 3 ... Operation part, 11 ... Drive control apparatus (control part), 54 ... Biopsy forceps (treatment tool), 56 ... Channel (forceps insertion hole), 59 ... Light receiving element, 69. Light emitting element

Claims (4)

鉗子挿入孔を有する内視鏡と、アクチュエータ手段により駆動する処置具と、前記アクチュエータ手段の動作制御を行う制御部とを備えた内視鏡システムにおいて、
前記鉗子挿入孔の一部に前記処置具が完全に挿通されたことを検出する検出手段を設け、この検出手段が、前記鉗子挿入孔に前記処置具が完全に挿通されたことを検出するまでは、該検出手段の信号によって前記制御部からアクチュエータ手段の駆動を禁止する安全機構を備えたことを特徴とする内視鏡システム。In an endoscope system including an endoscope having a forceps insertion hole, a treatment tool driven by an actuator means, and a control unit for controlling the operation of the actuator means,
Detecting means for detecting that the treatment instrument to a portion of the forceps insertion hole is completely inserted is provided, until the detecting means detects that the treatment instrument into the forceps insertion hole is fully inserted the endoscope system characterized by comprising a safety mechanism that prohibits driving of the actuator means from the control unit by a signal of said detecting means. 前記検出手段が、処置具側に設けた発光手段からの光を検出する、受光素子であることを特徴とする請求項１記載の内視鏡システム。  The endoscope system according to claim 1, wherein the detection unit is a light receiving element that detects light from a light emitting unit provided on a treatment instrument side. 前記検出手段が、処置具外表面の濃淡を検出する、電荷蓄積素子であることを特徴とする請求項１記載の内視鏡システム。  The endoscope system according to claim 1, wherein the detection unit is a charge storage element that detects the density of the outer surface of the treatment tool. 前記検出手段が、処置具側に設けたバーコードを読み取る、バーコードリーダであることを特徴とする請求項１記載の内視鏡システム。  The endoscope system according to claim 1, wherein the detection unit is a barcode reader that reads a barcode provided on the treatment instrument side.
JP07197797A 1997-03-25 1997-03-25 Endoscope system Expired - Fee Related JP3810177B2 (en)

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