JP2004236738A - Processor for electronic endoscope - Google Patents

Processor for electronic endoscope Download PDF

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Publication number
JP2004236738A
JP2004236738A JP2003027085A JP2003027085A JP2004236738A JP 2004236738 A JP2004236738 A JP 2004236738A JP 2003027085 A JP2003027085 A JP 2003027085A JP 2003027085 A JP2003027085 A JP 2003027085A JP 2004236738 A JP2004236738 A JP 2004236738A
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Japan
Prior art keywords
circuit
connector receiving
electronic endoscope
processor
electronic
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JP2003027085A
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Japanese (ja)
Inventor
Nobuyuki Akai
信幸 赤井
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.)
Fujinon Corp
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Fuji Photo Optical Co Ltd
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Priority to JP2003027085A priority Critical patent/JP2004236738A/en
Publication of JP2004236738A publication Critical patent/JP2004236738A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a processor for electronic endoscope that can prevent the unnecessary radiation of electromagnetic waves caused by the presence of an unconnected connector and the influences exerted by unnecessary electromagnetic waves and electric impacts from the outside. <P>SOLUTION: This processor 14 is provided with a plurality of connector receiving sections 15 and 16 corresponding to electronic endoscopes 11 and 12 of different types. When power is supplied, this processor 14 judges the connected/unconnected states of the endoscopes 11 and 12 in the first and second connector receiving sections 15 and 16 based on the communication made by communication circuits 23A and 23B. Then this processor 14 separates an unconnected connector receiving section (15 or 16) from an internal circuit by means of a change-over switching circuit (24 or 26) and connects the section (15 or 16) to a ground 27. In addition, this processor 14 stops the power supply to individual circuits connected to the unconnected connector receiving section (15 or 16) by means of a power supply control circuit 29 simultaneously with the separation and grounding of the section (15 or 16). <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

【0001】
【発明の属する技術分野】
本発明は電子内視鏡用プロセッサ装置、特に複数の電子内視鏡を接続可能にする複数のコネクタ受け部を備えたプロセッサ装置における不要電磁波対策のための構成に関する。
【0002】
【従来の技術】
電子内視鏡装置は、電子内視鏡(電子スコープ)の挿入部先端に配置したCCD(Charge Coupled Device)等の固体撮像素子によって被観察体内を撮像しており、このCCDの撮像信号がプロセッサ装置へ供給される。このプロセッサ装置では、各種の信号処理を施した映像信号が形成され、この映像信号がモニタへ出力されることにより、モニタ画面上で被観察体を観察することができるようになっている。
【0003】
この電子内視鏡装置に用いられるプロセッサ装置は、従来から一つの電子内視鏡のみを接続するように構成されているが、近年では、性能の異なるもの、適用部位の異なるもの、新旧のもの等の各種の電子内視鏡の存在に対応し、プロセッサ装置に複数のコネクタ及び信号処理回路を設け、各種の電子内視鏡を一つのプロセッサ装置に接続することが提案されている。これによれば、種類の異なる電子内視鏡に対応するプロセッサ装置の共用化が実現でき、使い勝手の向上、コストの低減が図れるという利点がある。
【0004】
【特許文献1】
特開平9−308606号公報
【特許文献2】
特許第3288412号公報
【0005】
【発明が解決しようとする課題】
しかしながら、プロセッサ装置に複数のコネクタを用いて各種の電子内視鏡が接続可能になる構成とする場合は、非接続又は不使用のコネクタ(受け部)から不要な電磁波(ノイズ)を外部へ輻射したり、逆に外部からの不要な電磁波、電撃をコネクタで拾ったりするという問題がある。そして、上記コネクタで受ける外部からの電磁波、電撃に対しては、保護ダイオード等を用いて内部回路を保護することが可能であるが、不要な電磁波の輻射についてはこのような保護用回路素子によって防止することはできない。
【0006】
本発明は上記問題点に鑑みてなされたものであり、その目的は、非接続のコネクタの存在により生じる不要な電磁波の輻射及び外部からの不要な電磁波、電撃による影響を防止する電子内視鏡用プロセッサ装置を提供することにある。
【0007】
【課題を解決するための手段】
上記目的を達成するために、請求項1に係る発明は、複数の電子内視鏡のコネクタを接続する複数のコネクタ受け部を備えた電子内視鏡用プロセッサ装置において、上記複数のコネクタ受け部の内、上記電子内視鏡が接続されていないコネクタ受け部側の電気接続線を装置内回路から分離(切断)し、かつグランドに接地する分離・接地回路を設けたことを特徴とする。
請求項2に係る発明は、電源投入時に上記複数のコネクタ受け部に対し通信を行うことにより上記電子内視鏡の接続/非接続を判断し、この判断に基づいて上記分離・接地回路は非接続コネクタ受け部の上記分離及び接地を実行することを特徴とする。
【0008】
請求項3に係る発明は、接続される上記電子内視鏡に対応し上記複数のコネクタ受け部のそれぞれに個別の回路を備えるときは、非接続のコネクタ受け部側の個別の回路の動作を停止させることを特徴とする。
請求項4に係る発明は、上記分離・接地回路と装置内回路との間に設けられ、この分離・接地回路の動作に連動して上記装置内回路への電気接続線を切断する2段目分離回路を設けたことを特徴とする。
【0009】
上記の構成によれば、例えばプロセッサ装置の電源投入時に複数のコネクタ受け部に対し通信が行われ、これにより各コネクタ受け部での電子内視鏡の接続/非接続が判断されることになり、その後、非接続のコネクタ受け部については、その受け部側の電気接続線が分離・接地回路により装置内回路から切断され、かつグランドへ接続される。
【0010】
また、上記複数のコネクタ受け部のそれぞれに個別の回路を備える場合、上記の分離、接地の動作と同時に、非接続のコネクタ受け部側に接続されている個別の回路の動作を停止すれば、電磁波発生源自体がなくなり、不要電磁波(ノイズ)の輻射を確実に防止することが可能になる。
更に、上記分離・接地回路に加えて、装置内回路への電気接続線を切断する2段目分離回路を設け、これによってコネクタ受け部の電気的分離の効果を高めることもできる。
【0011】
【発明の実施の形態】
図1には、第1実施例に係る電子内視鏡用プロセッサ装置の構成が示され、図2には電子内視鏡装置の全体の構成が示されている。まず、図2に示されるように、実施例では、種類の異なる二つの電子内視鏡(電子スコープ)11と電子内視鏡12がプロセッサ装置14に接続できるように構成されているものとする。上記の電子内視鏡11,12は、先端部にCCD(Charge Coupled Device)が配置された挿入部11a,12a、操作部11b,12b、プロセッサ側ケーブル11c,12cを有し、このプロセッサ側ケーブル11cに丸型コネクタ(差込み部側)11d、他方のプロセッサ側ケーブル12cに平型コネクタ(差込み部側)12dが設けられている。
【0012】
一方、上記プロセッサ装置14には、電子内視鏡11の丸型コネクタ11dを受ける第1コネクタ受け部15、電子内視鏡12の平型コネクタ12dを受ける第2コネクタ受け部16が設けられており、当該実施例はコネクタ形状を変えることで2つの電子内視鏡11,12の誤接続を防止する。また、このプロセッサ装置14には、被観察体を表示するモニタ17が接続される。なお、この図2では光源装置に関する構成を省略しているが、光源装置からの光が電子内視鏡11,12内のライトガイドを介して先端部から被観察体へ照射される。
【0013】
図1において、プロセッサ装置14内には、一方の電子内視鏡11のための回路として、電子内視鏡先端部のCCDを駆動する第1駆動回路20A、ビデオ信号の各種の処理をする第1信号処理回路21A、バッファ回路22A、通信回路23Aなどが設けられ、これらの内部回路が切換えスイッチ回路(分離・接地回路)24を介して上記第1コネクタ受け部15に接続される。また、他方の電子内視鏡12のための回路として、CCDを駆動する第2駆動回路20B、ビデオ信号の各種の処理をする第2信号処理回路21B、バッファ回路22B、通信回路23B等が設けられ、これらの内部回路が切換えスイッチ回路(分離・接地回路)26を介して上記第2コネクタ受け部16に接続される。
【0014】
上記通信回路23A,23Bは、第1コネクタ受け部15,第2コネクタ受け部16に対し、接続されるべき電子内視鏡11,12へ向けた通信信号を送信し、電子内視鏡11,12からの応答信号を受信することになる。
【0015】
また、上記の切換えスイッチ回路24,26は、図示されるように、プロセッサ装置14内の上述した各内部回路(電源を含む)に接続された端子aと、グランド(GND)27に接続・接地するための端子bとを有し、これらの端子a,bへの接続を切り換えることにより、第1及び第2のコネクタ受け部15,16を内部回路(20A,B〜23A,B等)又はグランド27のいずれかに接続する。
【0016】
更に、プロセッサ装置14内には、上記切換えスイッチ回路24,26を制御する制御回路28、各回路への電源の供給制御を行う電源制御回路29、全体の回路を統括制御するCPU30が設けられる。このCPU30は、上記通信回路23A,23Bの受信状況に基づいて、第1及び第2のコネクタ受け部15,16における電子内視鏡11,12の接続/非接続が判断され、非接続のコネクタ受け部(15又は16)に対する分離・接地への切替え指令を制御回路28へ出力し、また非接続のコネクタ受け部(15又は16)側の回路への電源停止指令(回路動作停止指令)を電源制御回路29へ出力する。
【0017】
また、上記信号処理回路21A,21B内には、キャラクタジェネレータ等が設けられており、当該例では上記の電子内視鏡11,12の接続状態の判断に基づき、所定のメッセージ画像をモニタ17に表示することが可能になっている。例えば、両方のコネクタ受け部15,16に電子内視鏡11,12が接続されている場合は、接続エラーのメッセージ或いは予め選択されている使用可能な一つの電子内視鏡を示すメッセージを形成し、モニタ17に出力する。また、正常に電子内視鏡11,12のいずれか一方が接続されている場合に、接続されている電子内視鏡11又は12を特定(種類等)する情報メッセージを出力することもできる。
【0018】
第1実施例は以上の構成からなり、図1のプロセッサ装置14の電源を入れると、通信回路23A,23Bによって第1及び第2のコネクタ受け部15,16に対し個々の電子内視鏡への通信信号が送出される。ここで、電子内視鏡11が第1コネクタ受け部15に接続され、第2コネクタ受け部16は非接続であるとすると、通信回路23Aでは電子内視鏡11からの応答信号が受信され、通信回路23Bでは応答信号が受信できないことになり、この受信状態からCPU30ではコネクタ接続の状態が判断される。
【0019】
その後、このCPU30からは制御回路28に対し非接続の第2コネクタ受け部16の分離・接地の指令が出力されることになり、この制御回路28を介して切換えスイッチ回路26が動作し、端子aから端子bへ接続が切り換えられる。この結果、第2コネクタ受け部16(の電気接続線)は、内部回路から切断され、グランド27へ接地される。この結果、非接続の第2コネクタ受け部16は、内部回路から完全に分離され、外部へ不要な電磁波(ノイズ)を輻射することがなく、第2コネクタ受け部16で受信した電磁波、電撃もグランド27へ落とされることになる。
【0020】
また同時に、上記CPU30から非接続のコネクタ受け部16側の内部回路の電源停止指令が電源制御回路29へ出力されており、この電源制御回路29によって第2駆動回路20B、第2信号処理回路21B、通信回路23B等への電源供給が停止される。これによれば、電子内視鏡12のために設けられた回路が動作しなくなるので、不要電磁波の発生、輻射を確実に防止することが可能となる。なお、この電源供給の停止を特にノイズ発生源となる回路のみに限定してもよい。
【0021】
上記第1実施例の説明では、電子内視鏡11が接続され、電子内視鏡12が非接続の場合を説明したが、逆に電子内視鏡11が非接続となる場合は、切換えスイッチ回路24の切り換えによって第1コネクタ受け部15が内部回路から分離され、接地されることになる。そして、上述した通信回路23A,23Bによる通信の結果、両方の電子内視鏡11,12が接続されていると判断されたとき(両方が非接続の場合も同様)には、接続エラーのメッセージがモニタ17上に表示される。また、このプロセッサ装置14では、両方の電子内視鏡11,12の接続がある場合に一方を自動的に有効にするように設定することもでき、この場合は予め選択、設定されている電子内視鏡が使用可能である旨のメッセージが表示される。
【0022】
図3には、第2実施例の構成が示されており、この第2実施例は第1及び第2コネクタ受け部15,16の分離・切断を2段で行うようにしたものである。図3に示されるように、この第2実施例では、第1実施例の切換えスイッチ回路24,26と同様の第1段切換えスイッチ回路(分離・接地回路)32,33と、内部回路側への電気線を接続(ON)/切断(OFF)する第2段切換えスイッチ回路(切断回路)34,35を設け、これらの回路32〜35を制御回路36で切換え制御できるようにする。
【0023】
このような第2実施例によれば、例えば電子内視鏡11側のコネクタ受け部15が非接続のとき、第1段切換えスイッチ回路32内の接続が端子aから端子bへ切り換えられると共に、第2段切換えスイッチ34がOFFに切り換えられ、コネクタ受け部16が非接続のときは、第1段切換えスイッチ回路33の接続が端子aから端子bへ切り換えられると共に、第2段切換えスイッチ35がOFFに切り換えられる。この2段の切断によれば、第1及び第2のコネクタ受け部15,16と内部回路側との電気的分離状態を第1実施例に比較して高めることができるという利点がある。
【0024】
【発明の効果】
以上説明したように、本発明によれば、各種の電子内視鏡に対応して複数のコネクタ受け部を備えたプロセッサ装置において、例えば通信の実行によって複数のコネクタ受け部での電子内視鏡の接続/非接続を判断し、分離・接地回路によって電子内視鏡が接続されていないコネクタ受け部側の電気接続線を装置内回路から分離しかつグランドに接地するようにしたので、非接続のコネクタ受け部から不要な電磁波を輻射することが防止され、また外部からの不要な電磁波、電撃によって内部回路が影響を受けることもない。
【0025】
また、各コネクタ受け部に対し個別の回路が配置される場合は、上記の分離・接地と同時に、非接続コネクタ受け部側の個別の回路の動作を停止してもよく、更には上記分離・接地回路と2段目分離回路の2段構成でコネクタ受け部を分離してもよく、これらの構成によれば、不要な電磁波の輻射及び不要な電磁波、電撃による内部回路への影響の防止効果を高めることができるという利点がある。
【図面の簡単な説明】
【図1】本発明の第1実施例に係る電子内視鏡用プロセッサ装置の構成を示す回路図である。
【図2】実施例のプロセッサ装置を適用する電子内視鏡装置の全体の構成を示す説明図である。
【図3】本発明の第2実施例に係る電子内視鏡用プロセッサ装置の構成を示す回路図である。
【符号の説明】
11,12…電子内視鏡、
11d,12d…コネクタ、
14…プロセッサ装置、
15…第1コネクタ受け部、
16…第2コネクタ受け部、
23A,23B…通信回路、
24,26…切換えスイッチ回路(分離・接地回路)、
29…電源制御回路、
32,33…第1段切換えスイッチ回路(分離・接地回路)、
34,35…第2段切換えスイッチ回路(2段目分離回路)。
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a configuration for preventing unnecessary electromagnetic waves in a processor device for an electronic endoscope, in particular, a processor device having a plurality of connector receiving portions capable of connecting a plurality of electronic endoscopes.
[0002]
[Prior art]
2. Description of the Related Art In an electronic endoscope apparatus, an image of an inside of an object to be observed is captured by a solid-state imaging device such as a CCD (Charge Coupled Device) arranged at the distal end of an insertion portion of an electronic endoscope (electronic scope). Supplied to the device. In this processor device, a video signal subjected to various signal processings is formed, and the video signal is output to a monitor so that the object to be observed can be observed on a monitor screen.
[0003]
The processor device used in this electronic endoscope device is conventionally configured to connect only one electronic endoscope, but in recent years, those having different performances, those having different application parts, those having new and old ones, In response to the existence of various types of electronic endoscopes, it has been proposed to provide a plurality of connectors and signal processing circuits in a processor device and connect the various types of electronic endoscopes to one processor device. According to this, there is an advantage that the sharing of the processor device corresponding to the different types of electronic endoscopes can be realized, the usability is improved, and the cost is reduced.
[0004]
[Patent Document 1]
JP-A-9-308606 [Patent Document 2]
Japanese Patent No. 3288412 [0005]
[Problems to be solved by the invention]
However, in a case where various types of electronic endoscopes can be connected to the processor device using a plurality of connectors, unnecessary electromagnetic waves (noise) are radiated to the outside from non-connected or unused connectors (receiving portions). And conversely, unwanted electromagnetic waves and electric shocks from outside are picked up by the connector. In addition, it is possible to protect the internal circuit by using a protection diode or the like against external electromagnetic waves and electric shocks received by the connector, but unnecessary electromagnetic radiation is protected by such a protection circuit element. It cannot be prevented.
[0006]
The present invention has been made in view of the above problems, and an object of the present invention is to provide an electronic endoscope that prevents unnecessary electromagnetic wave radiation caused by the presence of an unconnected connector, unnecessary electromagnetic waves from the outside, and the effects of electric shock. And a processor device for the same.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, an invention according to claim 1 is an electronic endoscope processor device having a plurality of connector receiving portions for connecting connectors of a plurality of electronic endoscopes. Preferably, there is provided a separation / grounding circuit for separating (cutting) an electric connection line on a connector receiving portion side to which the electronic endoscope is not connected from a circuit in the apparatus and grounding to a ground.
According to a second aspect of the present invention, when the power is turned on, the connection / non-connection of the electronic endoscope is determined by communicating with the plurality of connector receiving portions, and based on the determination, the separation / grounding circuit is disabled. The separation and grounding of the connector receiving portion is performed.
[0008]
According to a third aspect of the present invention, when an individual circuit is provided for each of the plurality of connector receiving sections corresponding to the electronic endoscope to be connected, the operation of the individual circuits on the unconnected connector receiving section side is performed. It is characterized by stopping.
The invention according to claim 4 is provided between the separation / grounding circuit and the circuit in the device, and disconnects an electric connection line to the circuit in the device in conjunction with the operation of the separation / grounding circuit. A separation circuit is provided.
[0009]
According to the above configuration, for example, when the power of the processor device is turned on, communication is performed with respect to the plurality of connector receivers, and thus connection / disconnection of the electronic endoscope at each connector receiver is determined. Thereafter, with respect to the unconnected connector receiving portion, the electrical connection line on the receiving portion side is disconnected from the internal circuit by the separating / grounding circuit and is connected to the ground.
[0010]
In addition, in the case where an individual circuit is provided in each of the plurality of connector receiving portions, if the operation of the individual circuits connected to the unconnected connector receiving portion is stopped at the same time as the separation and grounding operations, The source of the electromagnetic wave generation itself is eliminated, and the radiation of unnecessary electromagnetic waves (noise) can be reliably prevented.
Further, in addition to the above-mentioned separation / grounding circuit, a second-stage separation circuit for cutting the electric connection line to the internal circuit of the apparatus can be provided, thereby improving the effect of the electrical separation of the connector receiving portion.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
FIG. 1 shows the configuration of a processor for an electronic endoscope according to the first embodiment, and FIG. 2 shows the overall configuration of the electronic endoscope. First, as shown in FIG. 2, in the embodiment, it is assumed that two different types of electronic endoscopes (electronic scopes) 11 and electronic endoscopes 12 can be connected to the processor device 14. . The above-mentioned electronic endoscopes 11 and 12 have insertion sections 11a and 12a in which CCDs (Charge Coupled Devices) are arranged at the distal ends, operation sections 11b and 12b, and processor-side cables 11c and 12c. 11c is provided with a round connector (plug side) 11d, and the other processor side cable 12c is provided with a flat connector (plug side) 12d.
[0012]
On the other hand, the processor device 14 is provided with a first connector receiving portion 15 for receiving the round connector 11d of the electronic endoscope 11, and a second connector receiving portion 16 for receiving the flat connector 12d of the electronic endoscope 12. In this embodiment, the erroneous connection between the two electronic endoscopes 11 and 12 is prevented by changing the connector shape. Further, a monitor 17 for displaying an object to be observed is connected to the processor device 14. Although the configuration of the light source device is omitted in FIG. 2, light from the light source device is emitted from the distal end portion to the object through light guides in the electronic endoscopes 11 and 12.
[0013]
In FIG. 1, as a circuit for one of the electronic endoscopes 11, a first driving circuit 20A for driving a CCD at the tip of the electronic endoscope, and a processor for performing various kinds of processing of video signals are provided in a processor device 14. A 1-signal processing circuit 21A, a buffer circuit 22A, a communication circuit 23A, and the like are provided, and these internal circuits are connected to the first connector receiving section 15 via a switch circuit (separation / grounding circuit) 24. Further, as a circuit for the other electronic endoscope 12, a second drive circuit 20B for driving a CCD, a second signal processing circuit 21B for performing various processing of video signals, a buffer circuit 22B, a communication circuit 23B, and the like are provided. These internal circuits are connected to the second connector receiver 16 via a changeover switch circuit (separation / grounding circuit) 26.
[0014]
The communication circuits 23A and 23B transmit communication signals for the electronic endoscopes 11 and 12 to be connected to the first connector receiving portion 15 and the second connector receiving portion 16, respectively. 12 will be received.
[0015]
Further, as shown in the figure, the changeover switch circuits 24 and 26 are connected / grounded to a terminal a connected to each of the above-described internal circuits (including a power supply) in the processor device 14 and to a ground (GND) 27. And the connection to these terminals a and b is switched to connect the first and second connector receiving portions 15 and 16 to the internal circuit (20A, B to 23A, B, etc.) or Connect to one of the grounds 27.
[0016]
Further, in the processor device 14, there are provided a control circuit 28 for controlling the changeover switch circuits 24 and 26, a power supply control circuit 29 for controlling the supply of power to each circuit, and a CPU 30 for integrally controlling the entire circuit. The CPU 30 determines connection / disconnection of the electronic endoscopes 11 and 12 in the first and second connector receiving portions 15 and 16 based on the reception status of the communication circuits 23A and 23B, and A command to switch to the separation / grounding for the receiving portion (15 or 16) is output to the control circuit 28, and a power stop command (circuit operation stop command) to the circuit on the side of the unconnected connector receiving portion (15 or 16) is issued. Output to the power supply control circuit 29.
[0017]
A character generator or the like is provided in the signal processing circuits 21A and 21B. In this example, a predetermined message image is displayed on the monitor 17 based on the determination of the connection state of the electronic endoscopes 11 and 12. It is possible to display. For example, when the electronic endoscopes 11 and 12 are connected to both the connector receiving portions 15 and 16, a connection error message or a message indicating one pre-selected usable electronic endoscope is formed. Then, the output is output to the monitor 17. In addition, when one of the electronic endoscopes 11 and 12 is normally connected, an information message for specifying (such as a type) the connected electronic endoscope 11 or 12 can be output.
[0018]
The first embodiment has the above configuration. When the power of the processor device 14 in FIG. 1 is turned on, the communication circuits 23A and 23B cause the first and second connector receiving portions 15 and 16 to be connected to the individual electronic endoscopes. Is transmitted. Here, assuming that the electronic endoscope 11 is connected to the first connector receiving portion 15 and the second connector receiving portion 16 is not connected, the communication circuit 23A receives a response signal from the electronic endoscope 11, The response signal cannot be received by the communication circuit 23B, and the CPU 30 determines the state of the connector connection from the reception state.
[0019]
Thereafter, the CPU 30 outputs to the control circuit 28 a command to separate and ground the unconnected second connector receiver 16, and the changeover switch circuit 26 operates via the control circuit 28, and The connection is switched from a to terminal b. As a result, (the electrical connection line of) the second connector receiving portion 16 is disconnected from the internal circuit and grounded to the ground 27. As a result, the unconnected second connector receiver 16 is completely separated from the internal circuit, does not radiate unnecessary electromagnetic waves (noise) to the outside, and also receives electromagnetic waves and electric shocks received by the second connector receiver 16. It will be dropped to the ground 27.
[0020]
At the same time, a power supply stop command for the internal circuit on the side of the unconnected connector receiver 16 is output from the CPU 30 to the power supply control circuit 29, and the power supply control circuit 29 causes the second drive circuit 20B and the second signal processing circuit 21B. The power supply to the communication circuit 23B and the like is stopped. According to this, the circuit provided for the electronic endoscope 12 does not operate, so that generation and radiation of unnecessary electromagnetic waves can be reliably prevented. Note that the stop of the power supply may be limited to only a circuit that is a noise generation source.
[0021]
In the description of the first embodiment, the case where the electronic endoscope 11 is connected and the electronic endoscope 12 is not connected is described. However, when the electronic endoscope 11 is not connected, the changeover switch is used. By switching the circuit 24, the first connector receiving portion 15 is separated from the internal circuit and grounded. As a result of the communication by the communication circuits 23A and 23B, when it is determined that both the electronic endoscopes 11 and 12 are connected (the same is true when both are not connected), a connection error message is displayed. Is displayed on the monitor 17. In addition, the processor device 14 can be set so that when both electronic endoscopes 11 and 12 are connected, one of them is automatically enabled. A message indicating that the endoscope is usable is displayed.
[0022]
FIG. 3 shows the configuration of the second embodiment. In the second embodiment, the first and second connector receiving portions 15 and 16 are separated and cut in two stages. As shown in FIG. 3, in the second embodiment, first-stage changeover switch circuits (separation / grounding circuits) 32 and 33 similar to the changeover switch circuits 24 and 26 of the first embodiment and the internal circuit side. A second-stage changeover switch circuits (cutoff circuits) 34 and 35 for connecting (ON) / disconnecting (OFF) the electric lines are provided, and these circuits 32 to 35 can be switched and controlled by a control circuit 36.
[0023]
According to the second embodiment, for example, when the connector receiving portion 15 of the electronic endoscope 11 is not connected, the connection in the first-stage switching circuit 32 is switched from the terminal a to the terminal b, and When the second-stage switch 34 is turned off and the connector receiving portion 16 is not connected, the connection of the first-stage switch circuit 33 is switched from the terminal a to the terminal b, and the second-stage switch 35 is turned on. It is switched to OFF. According to this two-stage cutting, there is an advantage that the electrical isolation state between the first and second connector receiving portions 15 and 16 and the internal circuit side can be increased as compared with the first embodiment.
[0024]
【The invention's effect】
As described above, according to the present invention, in a processor device having a plurality of connector receiving portions corresponding to various electronic endoscopes, for example, the electronic endoscope in the plurality of connector receiving portions by executing communication Since the connection / non-connection of the electronic endoscope is determined by the separation / grounding circuit, the electric connection line on the connector receiving portion side to which the electronic endoscope is not connected is separated from the circuit in the device and grounded to the ground. Unnecessary electromagnetic waves are prevented from being radiated from the connector receiving portion, and the internal circuit is not affected by unnecessary external electromagnetic waves or electric shock.
[0025]
When an individual circuit is arranged for each connector receiving portion, the operation of the individual circuit on the non-connecting connector receiving portion side may be stopped at the same time as the above separation / grounding. The connector receiving portion may be separated by a two-stage configuration of a grounding circuit and a second-stage separation circuit, and according to these configurations, an effect of preventing unnecessary electromagnetic wave radiation, unnecessary electromagnetic waves, and electric shock from affecting the internal circuit. There is an advantage that can be increased.
[Brief description of the drawings]
FIG. 1 is a circuit diagram showing a configuration of a processor device for an electronic endoscope according to a first embodiment of the present invention.
FIG. 2 is an explanatory diagram illustrating an overall configuration of an electronic endoscope apparatus to which the processor device according to the embodiment is applied;
FIG. 3 is a circuit diagram showing a configuration of a processor device for an electronic endoscope according to a second embodiment of the present invention.
[Explanation of symbols]
11, 12 ... electronic endoscope,
11d, 12d ... connectors,
14. Processor unit,
15: first connector receiving portion,
16 second connector receiving portion,
23A, 23B ... communication circuit,
24, 26 ... changeover switch circuit (separation / grounding circuit),
29 power supply control circuit,
32, 33: first stage changeover switch circuit (separation / grounding circuit),
34, 35... Second-stage changeover switch circuits (second-stage separation circuits).

Claims (4)

複数の電子内視鏡のコネクタを接続する複数のコネクタ受け部を備えた電子内視鏡用プロセッサ装置において、
上記複数のコネクタ受け部の内、上記電子内視鏡が接続されていないコネクタ受け部側の電気接続線を装置内回路から分離し、かつグランドに接地する分離・接地回路を設けたことを特徴とする電子内視鏡用プロセッサ装置。
In a processor device for an electronic endoscope having a plurality of connector receiving portions for connecting connectors of a plurality of electronic endoscopes,
A separation / grounding circuit for separating an electrical connection line of the connector receiving portion to which the electronic endoscope is not connected from an internal circuit of the device and grounding the ground to a ground is provided. Electronic endoscope processor device.
電源投入時に上記複数のコネクタ受け部に対し通信を行うことにより上記電子内視鏡の接続/非接続を判断し、この判断に基づいて上記分離・接地回路は非接続コネクタ受け部の上記分離及び接地を実行することを特徴とする上記請求項1記載の電子内視鏡用プロセッサ装置。When the power is turned on, the connection / non-connection of the electronic endoscope is determined by communicating with the plurality of connector receiving portions. The processor for an electronic endoscope according to claim 1, wherein grounding is performed. 接続される上記電子内視鏡に対応し上記複数のコネクタ受け部のそれぞれに個別の回路を備えるときは、非接続のコネクタ受け部側の個別の回路の動作を停止させることを特徴とする上記請求項1又は2記載の電子内視鏡用プロセッサ装置。When an individual circuit is provided in each of the plurality of connector receiving portions corresponding to the electronic endoscope to be connected, the operation of the individual circuits on the unconnected connector receiving portion side is stopped. The processor device for an electronic endoscope according to claim 1. 上記分離・接地回路と装置内回路との間に設けられ、この分離・接地回路の動作に連動して上記装置内回路への電気接続線を切断する2段目分離回路を設けたことを特徴とする上記請求項1乃至3記載の電子内視鏡用プロセッサ装置。A second-stage separation circuit is provided between the separation / grounding circuit and the circuit in the device, and disconnects an electric connection line to the circuit in the device in conjunction with the operation of the separation / grounding circuit. 4. The electronic endoscope processor device according to claim 1, wherein:
JP2003027085A 2003-02-04 2003-02-04 Processor for electronic endoscope Pending JP2004236738A (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007209570A (en) * 2006-02-10 2007-08-23 Fujinon Corp Electronic endoscope
JP2008229204A (en) * 2007-03-23 2008-10-02 Fujinon Corp Electronic endoscope system
EP2052670A1 (en) 2007-10-23 2009-04-29 Olympus Medical Systems Corp. Endoscope control apparatus
JP2009189528A (en) * 2008-02-14 2009-08-27 Fujinon Corp Processor unit for endoscope and endoscopic system
US8376935B2 (en) 2007-09-19 2013-02-19 Fujinon Corporation Observed image forming apparatus
WO2018003489A1 (en) * 2016-06-27 2018-01-04 オリンパス株式会社 Processor, endoscope system, method for controlling processor, and control program
CN110944569A (en) * 2017-08-01 2020-03-31 奥林巴斯株式会社 Endoscope system
JP2022044599A (en) * 2016-06-21 2022-03-17 エンドチョイス インコーポレイテッド Endoscope system with multiple connection interfaces to interface with different video data signal sources

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007209570A (en) * 2006-02-10 2007-08-23 Fujinon Corp Electronic endoscope
JP2008229204A (en) * 2007-03-23 2008-10-02 Fujinon Corp Electronic endoscope system
US8376935B2 (en) 2007-09-19 2013-02-19 Fujinon Corporation Observed image forming apparatus
US8480565B2 (en) 2007-10-23 2013-07-09 Olympus Medical Systems Corp. Endoscope control apparatus
JP2009100938A (en) * 2007-10-23 2009-05-14 Olympus Medical Systems Corp Endoscope control device
EP2052670A1 (en) 2007-10-23 2009-04-29 Olympus Medical Systems Corp. Endoscope control apparatus
JP2009189528A (en) * 2008-02-14 2009-08-27 Fujinon Corp Processor unit for endoscope and endoscopic system
JP2022044599A (en) * 2016-06-21 2022-03-17 エンドチョイス インコーポレイテッド Endoscope system with multiple connection interfaces to interface with different video data signal sources
US11672407B2 (en) 2016-06-21 2023-06-13 Endochoice, Inc. Endoscope system with multiple connection interfaces to interface with different video data signal sources
JP7355803B2 (en) 2016-06-21 2023-10-03 エンドチョイス インコーポレイテッド Control unit with multiple connection interfaces to interface with different video data signal sources
WO2018003489A1 (en) * 2016-06-27 2018-01-04 オリンパス株式会社 Processor, endoscope system, method for controlling processor, and control program
JP6289777B1 (en) * 2016-06-27 2018-03-07 オリンパス株式会社 Endoscope system
US10555661B2 (en) 2016-06-27 2020-02-11 Olympus Corporation Endoscope System
CN110944569A (en) * 2017-08-01 2020-03-31 奥林巴斯株式会社 Endoscope system

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