JP3190731B2 - Endoscope - Google Patents
EndoscopeInfo
- Publication number
- JP3190731B2 JP3190731B2 JP14911092A JP14911092A JP3190731B2 JP 3190731 B2 JP3190731 B2 JP 3190731B2 JP 14911092 A JP14911092 A JP 14911092A JP 14911092 A JP14911092 A JP 14911092A JP 3190731 B2 JP3190731 B2 JP 3190731B2
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- liquid
- air
- air supply
- supply
- endoscope
- Prior art date
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Description
【０００１】[0001]
【産業上の利用分野】本発明は、送液及び送気を行うこ
とにより内視鏡先端部に設けられた観察窓の洗浄を行う
送気送液装置を備えた内視鏡の改良に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of an endoscope provided with an air-supplying / liquid-supplying device for cleaning an observation window provided at the end of an endoscope by supplying liquid and supplying air.
【０００２】[0002]
【従来の技術】内視鏡は、十二指腸、直腸、大腸、食
道、耳鼻、および膀胱等の生体の治療や検査に広く用い
られている。内視鏡は、患者の腔内に挿入して使用する
ことから術中に観察光学系に汚物や粘着物が付着して内
視鏡による観察視野が狭められ観察が困難となる。この
ため、内視鏡では、内視鏡の送液路から先端の送液ノズ
ルへ液体（洗浄液）を供給して観察光学系に噴射させ観
察光学系に付着した汚物や粘着物を除去した後、送気路
から先端送気ノズルへ気体を供給して観察光学系に付着
した液体を取り除き、良好な観察視野を確保するように
している。2. Description of the Related Art Endoscopes are widely used for treatment and examination of living bodies such as the duodenum, rectum, large intestine, esophagus, otolaryngology, and bladder. Since the endoscope is used by inserting it into the cavity of a patient, dirt and adhesive matter adhere to the observation optical system during the operation, and the observation field of view of the endoscope is narrowed, making observation difficult. For this reason, in an endoscope, a liquid (cleaning liquid) is supplied from a liquid supply path of the endoscope to a liquid supply nozzle at the tip, and is jetted to an observation optical system to remove dirt and adhesive substances attached to the observation optical system. In addition, a gas is supplied from the air supply path to the tip air supply nozzle to remove the liquid adhering to the observation optical system, thereby ensuring a good observation visual field.
【０００３】[0003]
【発明が解決しようとする課題】従来の内視鏡では、送
液ノズルから観察光学系に液体を噴射した後、連続的に
送気ノズルから気体を噴射させて観察光学系に付着した
液体を風圧により吹き飛ばして除去していた。このとき
送気ノズルから噴射される風圧の時間による変化を図５
に示す。In a conventional endoscope, after a liquid is jetted from a liquid sending nozzle to an observation optical system, a gas is continuously jetted from an air feeding nozzle to remove the liquid adhering to the observation optical system. It was blown off by wind pressure and removed. At this time, the change with time of the wind pressure injected from the air supply nozzle is shown in FIG.
Shown in
【０００４】図５に示されるように、送気ノズルから噴
射される気体の圧力は噴射開始直後に最も高くなり、そ
の後徐々に低下して送気を行っている送気ポンプの圧力
と等しくなる。このため、連続的に送気を行うと圧力が
低下し観察光学系に付着した液体を十分に除去すること
ができず（水切れが悪い）、この除去しきれなかった液
体のために観察視野が狭められていた。このように観察
視野が狭められると、診察が行いにくくなるため、一人
当たりの診察時間が長くなり、患者に与える苦痛の増
加、装置のスループットの低下というような問題があっ
た。As shown in FIG. 5, the pressure of the gas injected from the air supply nozzle becomes highest immediately after the start of the injection, and then gradually decreases to become equal to the pressure of the air supply pump which performs the air supply. . For this reason, if air is continuously supplied, the pressure drops and the liquid adhering to the observation optical system cannot be sufficiently removed (the drainage is poor). Had been narrowed. When the observation field of view is narrowed in this way, it becomes difficult to perform a medical examination, so that the medical examination time per person becomes longer, so that there are problems such as an increase in pain given to the patient and a decrease in the throughput of the apparatus.
【０００５】この観察光学系に付着した液体を十分に除
去する（水切れを良くする）には、気体を送気する送気
ポンプの圧力を高くして送気圧を高くすれば良い。しか
し、送気ポンプの圧力を高くすると、送気、送液両方の
圧力を高くなり、このような圧力の高い送気又は送液を
連続して行うと、体内に噴射される気体又は液体の量が
増え患者に苦痛を与えることになる。また、送気ポンプ
の圧力を高くしておくと噴射開始直後の送気の圧力が非
常に高くなるため、体内の組織に強い刺激を与えたり組
織を傷つけたりして患者に苦痛を与える恐れがあった。
そこで本発明は、上記問題点を解決するために、被検体
に与える苦痛が少なく、水切れの良い送気送液装置を備
えた内視鏡を提供することを目的とする。In order to sufficiently remove the liquid adhering to the observation optical system (to improve drainage), the pressure of an air supply pump for supplying gas may be increased to increase the air pressure. However, when the pressure of the air supply pump is increased, the pressure of both the air supply and the liquid supply is increased, and when such high pressure air supply or liquid supply is continuously performed, the gas or liquid ejected into the body is reduced. The amount will increase and the patient will suffer. Also, if the pressure of the air supply pump is increased, the pressure of the air supply immediately after the start of the injection becomes extremely high, which may give a strong stimulus to the tissue in the body or damage the tissue, thereby causing pain to the patient. there were.
In view of the above, an object of the present invention is to provide an endoscope provided with an air-supplying and liquid-supplying device that causes less pain to a subject and has good drainage in order to solve the above problem.
【０００６】[0006]
【課題を解決するための手段】上記課題を解決するため
に、本発明は、送水管に送水を行う送水手段と、送気管
に送気を行う送気手段と、前記送水手段からの送水およ
び前記送気手段からの送気を制御する制御手段と、を具
備する内視鏡において、前記制御手段は、前記送気手段
から前記送気管に断続的に送気させる際、前記送水手段
から前記送水管に送水させないことを特徴とする。In order to solve the above problems, the present invention provides a water supply means for supplying water to a water supply pipe, an air supply means for supplying air to a gas supply pipe, and a method for supplying water from the water supply means. Control means for controlling air supply from the air supply means, and the control means, when the air supply means to intermittently supply air to the air supply pipe, the water supply means from the water supply means It is characterized in that water is not sent to the water pipe.
【０００７】[0007]
【作用】本発明は、上記構成により、連続的に送気を行
う場合よりも送気圧を高くすることができる。According to the present invention, with the above configuration, the air pressure can be increased as compared with the case where air is continuously supplied.
【０００８】[0008]
【実施例】図１は本発明に関わる内視鏡の概略を示す説
明図であり、図２は図１における内視鏡先端部の部分拡
大図である。1 is an explanatory view schematically showing an endoscope according to the present invention, and FIG. 2 is a partially enlarged view of a distal end portion of the endoscope in FIG.
【０００９】内視鏡１は、先端から後端にかけて固体撮
像素子（以下、ＣＣＤと略称する。）及び観察光学系等
を内蔵する先端部２、術者の操作により上下左右に動す
る屈曲部３、導中部４及び本体部Ｅから構成されてい
る。そして、本体部Ｅは屈曲部３を作動する操作ノブ５
及びその他図示していない種々の操作部や電源部等を具
備しており、送気送液管路６に接続されている。An endoscope 1 includes a solid-state image pickup device (hereinafter abbreviated as a CCD), an observation optical system, and the like. 3, a guiding portion 4 and a main body E. The main body E is provided with an operation knob 5 for operating the bending portion 3.
And other various operation units and a power supply unit (not shown), and are connected to the gas / liquid supply line 6.
【００１０】さらに、送気送液管路６の一端は送気ポン
プ６２を具備する送液ボトル６３に連結され、他端はｃ
図２に示した内視鏡先端部の送気ノズル２３及び送液ノ
ズル２４に接続されている。この送気送液管路６の途中
には、電磁開閉弁等から構成される送気送液制御装置６
４が設けられている。Further, one end of the air / liquid supply line 6 is connected to a liquid supply bottle 63 having an air supply pump 62, and the other end is c.
It is connected to the air supply nozzle 23 and the liquid supply nozzle 24 at the end of the endoscope shown in FIG. In the middle of the air / liquid supply line 6, an air / liquid control device 6 including an electromagnetic on-off valve and the like is provided.
4 are provided.
【００１１】観察光学系２１はＣＣＤ等を内蔵するレン
ズ窓から構成される。照明用光ファイバー２２ａ及び２
２ｂは、光源から送られてきた光により体腔内を照らす
ためのものである。鉗子口２５は、生検を行うための鉗
子等を通すためものである。送気ノズル２３及び送液ノ
ズル２４は、術中に観察光学系表面に付着した汚物等を
洗浄、除去するためのものである。図３は、送気送液制
御装置６４の構成図である。The observation optical system 21 is composed of a lens window having a built-in CCD or the like. Lighting optical fibers 22a and 22
2b is for illuminating the inside of the body cavity with the light transmitted from the light source. The forceps port 25 is for passing forceps or the like for performing a biopsy. The air supply nozzle 23 and the liquid supply nozzle 24 are for cleaning and removing dirt and the like adhering to the surface of the observation optical system during the operation. FIG. 3 is a configuration diagram of the gas supply control unit 64.
【００１２】電磁開閉弁６４１〜６４３は、電気的に弁
の開閉を行うものである。電磁開閉弁６４１には、送気
ポンプ６２を備えた送液ボトル６３に連結されている送
気管路６５１と送気ノズル２３に接続されている送気管
路６５１ａが接続されている。電磁開閉弁６４２には、
送気ポンプ６２を備えた送液ボトル６３に連結されてい
る送液管路６５２と送液ノズル２４に接続されている送
液管路６５２ａが接続されている。送気管路６５１ａと
送気管路６５２ａは、管路６５３を介して接続されてい
る。電磁弁制御装置６１は、操作部７の信号に基き各電
磁開閉弁６４１〜６４３の制御信号を発生する。次に、
本発明に関わる電磁弁制御装置６１の動作について説明
する。The solenoid on-off valves 641 to 643 open and close the valves electrically. An air supply line 651 connected to the liquid supply bottle 63 provided with the air supply pump 62 and an air supply line 651 a connected to the air supply nozzle 23 are connected to the electromagnetic on-off valve 641. The solenoid on-off valve 642 includes
A liquid feed pipe 652 connected to the liquid feed bottle 63 having the air feed pump 62 and a liquid feed pipe 652 a connected to the liquid feed nozzle 24 are connected. The air supply pipe 651a and the air supply pipe 652a are connected via a pipe 653. The solenoid valve control device 61 generates a control signal for each of the solenoid on-off valves 641 to 643 based on a signal from the operation unit 7. next,
The operation of the solenoid valve control device 61 according to the present invention will be described.
【００１３】内視鏡では、操作部７の送液ボタン・送気
ボタン、管路洗浄ボタンＡ、管路洗浄ボタンＢを操作す
ることにより、送気、送液、送気管路６５１ａ及び送水
管路６５２ａの洗浄の動作を行うことができる。In the endoscope, the air supply, liquid supply, air supply line 651a and the water supply pipe are operated by operating the liquid supply button / air supply button, the channel cleaning button A, and the channel cleaning button B of the operation unit 7. The operation of cleaning the path 652a can be performed.
【００１４】操作部７の送液ボタンを押すと、電磁弁制
御装置６１は、電磁開閉弁６４１と電磁開閉弁６４３を
閉とし電磁開閉弁６４２を開とする。電磁開閉弁６４２
を開にすることにより送液管路６５２と送液管路６５２
ａとが連通し、送液ボトル６３内の液体が送液ノズル２
４に送られ、観察光学面の洗浄が行われる。また、送液
ボタンを放すと電磁開閉弁６４１〜６４３は閉となり、
送液は停止する。When the liquid supply button of the operation unit 7 is pressed, the electromagnetic valve control device 61 closes the electromagnetic on-off valves 641 and 643 and opens the electromagnetic on-off valve 642. Solenoid on-off valve 642
Is opened, the liquid sending pipe 652 and the liquid sending pipe 652 are opened.
a and the liquid in the liquid sending bottle 63 is
4 to clean the observation optical surface. Also, when the liquid supply button is released, the electromagnetic on-off valves 641 to 643 are closed,
The liquid supply stops.
【００１５】操作部７の管路洗浄ボタンＡを押すと、電
磁弁制御装置６１は、電磁開閉弁６４１を閉とし、電磁
開閉弁６４２と電磁開閉弁６４３を開とする。電磁開閉
弁６４２と電磁開閉弁６４３を開にすることにより送液
管路６５２と送液管路６５２ａ及び送液管路６５１ａと
が連通し、送液ボトル６３内の液体が送気管路６５１ａ
及び送液管路６５２ａを通して送気ノズル２３及び送液
ノズル２４に送られ、送気管路６５１ａ及び送液管路６
５２ａの洗浄が行われる。また、管路洗浄ボタンＡを放
すと電磁開閉弁６４１〜６４３は閉となり、送液は停止
する。次に管路洗浄ボタンＢを押すと、電磁弁制御装置
６１は、電磁開閉弁６４２を閉とし、電磁開閉弁６４１
と電磁開閉弁６４３を開とする。電磁開閉弁６４１と電
磁開閉弁６４３を開にすることにより送液管路６５２と
送液管路６５２ａ及び送液管路６５１ａとが連通し、送
液ボトル６３内の気体が送気管路６５１ａ及び送液管路
６５２ａを通して送気ノズル２３及び送液ノズル２４に
送られ、送気管路６５１ａ及び送液管路６５２ａに残留
している液体を除去することができる。また、管路洗浄
ボタンＢを放すと電磁開閉弁６４１〜６４３は閉とな
り、送液は停止する。次に送気を行う方法について説明
する。When the conduit cleaning button A of the operation unit 7 is pressed, the solenoid valve control device 61 closes the solenoid on-off valve 641 and opens the solenoid on-off valves 642 and 643. When the electromagnetic on-off valve 642 and the electromagnetic on-off valve 643 are opened, the liquid sending pipe 652 communicates with the liquid sending pipe 652a and the liquid sending pipe 651a, and the liquid in the liquid sending bottle 63 is supplied to the gas sending pipe 651a.
The liquid is sent to the gas supply nozzle 23 and the liquid supply nozzle 24 through the liquid supply pipe 652a, and is supplied to the gas supply pipe 651a and the liquid supply pipe 6
The cleaning of 52a is performed. When the line cleaning button A is released, the electromagnetic on / off valves 641 to 643 are closed, and the liquid feeding is stopped. Next, when the conduit cleaning button B is pressed, the solenoid valve control device 61 closes the solenoid on-off valve 642 and turns off the solenoid on-off valve 641.
And the electromagnetic switching valve 643 is opened. When the electromagnetic on-off valve 641 and the electromagnetic on-off valve 643 are opened, the liquid sending pipe 652 communicates with the liquid sending pipe 652a and the liquid sending pipe 651a, and the gas in the liquid sending bottle 63 passes through the gas sending pipe 651a. The liquid sent to the air supply nozzle 23 and the liquid supply nozzle 24 through the liquid supply line 652a and remaining in the gas supply line 651a and the liquid supply line 652a can be removed. When the line cleaning button B is released, the electromagnetic on / off valves 641 to 643 are closed, and the liquid feeding is stopped. Next, a method for supplying air will be described.
【００１６】操作部７の送気ボタンを押すと、電磁弁制
御装置６１は、電磁開閉弁６４２と電磁開閉弁６４３を
閉とし、電磁開閉弁６４１を一定時間毎に繰り返して開
閉させる。When the air supply button of the operation unit 7 is pressed, the solenoid valve control device 61 closes the solenoid on-off valves 642 and 643 and repeatedly opens and closes the solenoid on-off valves 641 at regular intervals.
【００１７】電磁開閉弁６４１を開にすると送気管路６
５１と送気管路６５１ａとが連通し、送液ボトル６３内
の気体が送気ノズル２３に送られることから、電磁開閉
弁６４１を一定時間毎に開閉を繰り返すと、送気ノズル
２３からは断続的に送気が行われる。図４は、このとき
送気ノズル２３から噴射される気体の送気圧力と送気時
間との関係を表すグラフである。When the solenoid on-off valve 641 is opened, the air supply line 6
Since the gas in the liquid supply bottle 63 is sent to the air supply nozzle 23 because the gas supply line 51 communicates with the air supply line 651a, if the electromagnetic on-off valve 641 is repeatedly opened and closed at regular time intervals, the air supply nozzle 23 is intermittently connected. The air is supplied. FIG. 4 is a graph showing the relationship between the gas supply pressure of the gas injected from the gas supply nozzle 23 and the gas supply time.
【００１８】送気開始直後、送気圧力は比較的高くなる
ことから、送気を断続的に行うと連続的に送気を行った
場合よりも高い送気圧力で気体を噴射することができ
る。このため、連続的に送気を行った場合よりも早く、
完全に観察光学面２１に付着している液体を除去するこ
とができ、良好な観察視野を得ることができる。このよ
うに良好な観察視野を得ることにより一人当たりの診察
時間を短くできるため、患者に与える苦痛の少なくでき
ると同時に装置のスループットの高くすることができ
る。また、本実施例では、一定時間毎に電磁開閉弁６４
１の開閉を行っていたが、開閉時間の設定装置を設け開
閉時間を変化できるようにしても良い。Immediately after the start of air supply, the air supply pressure becomes relatively high. Therefore, if air supply is performed intermittently, gas can be injected at a higher air supply pressure than when air is continuously supplied. . For this reason, it is faster than when air is continuously supplied,
The liquid adhering to the observation optical surface 21 can be completely removed, and a good observation visual field can be obtained. By obtaining such a good observation field of view, the consultation time per person can be shortened, so that the pain given to the patient can be reduced and the throughput of the apparatus can be increased. Further, in the present embodiment, the electromagnetic on-off valve 64
Although the opening / closing operation of No. 1 is performed, an opening / closing time setting device may be provided so that the opening / closing time can be changed.
【００１９】また、観察光学系２１を洗浄する場合は、
送液を行い観察光学系２１に付着した汚物や粘着物を除
去した後、送気を行い観察光学系に付着している液体
（水滴）を除去することから、この洗浄の一連の動作を
電磁弁制御装置６１に記憶しておき、洗浄ボタン（図示
せず。）を一度押すだけで自動的に送液・送気を順次行
うようにしても良い。When cleaning the observation optical system 21,
After the liquid is sent to remove the dirt and the sticky substance attached to the observation optical system 21, the air is sent to remove the liquid (water droplet) attached to the observation optical system. It is also possible to store the information in the valve control device 61 and automatically perform the liquid supply and the air supply sequentially only by pressing the cleaning button (not shown) once.
【００２０】また、このように送気を断続的に行う方法
は、管路の洗浄の際の送気においても有効である。管路
洗浄ボタンＢを押したときに、送気を断続的に行うよう
にしておくことにより、管路洗浄の際に管路に残留して
いる液体の除去を素早く行えるようになる。本発明は、
上記実施例に限定されるものではなく、本発明の趣旨を
逸脱しない範囲で種々変形可能であることはいうまでも
ない。Such a method of intermittently supplying air is also effective in supplying air when cleaning the pipeline. By performing the air supply intermittently when the pipeline cleaning button B is pressed, the liquid remaining in the pipeline during the pipeline cleaning can be quickly removed. The present invention
It is needless to say that the present invention is not limited to the above-described embodiment, but can be variously modified without departing from the spirit of the present invention.
【００２１】[0021]
【発明の効果】以上説明したように本発明によれば、観
察光学系に付着、残留している液体を早く、除去するこ
とができる。As described above, according to the present invention, the liquid adhering and remaining on the observation optical system can be quickly removed.
【図１】本発明に関わる内視鏡の構成図である。FIG. 1 is a configuration diagram of an endoscope according to the present invention.
【図２】図１に示した内視鏡の先端部の拡大図である。FIG. 2 is an enlarged view of a distal end portion of the endoscope shown in FIG.
【図３】本発明に関わる電磁弁制御装置の構成図であ
る。FIG. 3 is a configuration diagram of a solenoid valve control device according to the present invention.
【図４】本発明の内視鏡の送気圧を示すグラフである。FIG. 4 is a graph showing the air pressure of the endoscope of the present invention.
【図５】従来の内視鏡の送気圧を示すグラフである。FIG. 5 is a graph showing the air pressure of a conventional endoscope.
１ 内視鏡 ２ 先端部 ３ 屈曲部 ４ 導中部 ５ 操作ノブ ６ 送気送液管路 ７ 操作部 Ｅ 本体部 ２１観察光学系 ２２ａ、２２ｂ 照明用光ファイバー ２３ 送気ノズル ２４ 送液ノズル ２５ 鉗子口 ６１ 電磁弁制御装置 ６２ 送気ポンプ ６３ 送液ボトル ６４ 送気送液制御装置 ６４１、６４２、６４３ 電磁開閉弁 ６５１、６５１ａ 送気管路 ６５２、６５２ａ 送液管路 ６５３ 管路 REFERENCE SIGNS LIST 1 endoscope 2 distal end portion 3 bent portion 4 middle portion 5 operation knob 6 air supply / liquid supply line 7 operation portion E main body 21 observation optical system 22 a, 22 b illumination optical fiber 23 air supply nozzle 24 liquid supply nozzle 25 forceps port 61 electromagnetic valve control device 62 air supply pump 63 liquid supply bottle 64 gas supply liquid supply control device 641, 642, 643 electromagnetic on-off valve 651, 651a gas supply line 652, 652a liquid supply line 653 line
Claims (2)
に送気を行う送気手段と、 前記送水手段からの送水および前記送気手段からの送気
を制御する制御手段と、を具備する内視鏡において、 前記制御手段は、前記送気手段から前記送気管に断続的
に送気させる際、 前記送水手段から前記送水管に送水させないことを特徴
とする内視鏡。1. A water supply means for supplying water to a water supply pipe, an air supply means for supplying air to an air supply pipe, and a control means for controlling water supply from the water supply means and air supply from the air supply means. An endoscope provided with the endoscope, wherein the control means does not supply water to the water pipe from the water supply means when the air supply means intermittently supplies air to the air supply pipe.
設定手段をさらに備えたことを特徴とする請求項１記載
の内視鏡。2. The endoscope according to claim 1, further comprising setting means for setting an interval between the air supply means and the air supply means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14911092A JP3190731B2 (en) | 1992-06-09 | 1992-06-09 | Endoscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14911092A JP3190731B2 (en) | 1992-06-09 | 1992-06-09 | Endoscope |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05337074A JPH05337074A (en) | 1993-12-21 |
| JP3190731B2 true JP3190731B2 (en) | 2001-07-23 |
Family
ID=15467927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14911092A Expired - Fee Related JP3190731B2 (en) | 1992-06-09 | 1992-06-09 | Endoscope |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3190731B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007296164A (en) * | 2006-05-01 | 2007-11-15 | Fujinon Corp | Endoscopic system |
| EP3656284A1 (en) | 2008-04-16 | 2020-05-27 | United States Endoscopy Group, Inc. | Adaptor for a water bottle of an endoscope |
| WO2011032067A1 (en) | 2009-09-14 | 2011-03-17 | Bracco Diagnostics Inc. | In-line gas adaptor for endoscopic apparatus |
-
1992
- 1992-06-09 JP JP14911092A patent/JP3190731B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05337074A (en) | 1993-12-21 |
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| LAPS | Cancellation because of no payment of annual fees |