JPH05103757A - Treating tool inserting type endoscope - Google Patents
Treating tool inserting type endoscopeInfo
- Publication number
- JPH05103757A JPH05103757A JP3248499A JP24849991A JPH05103757A JP H05103757 A JPH05103757 A JP H05103757A JP 3248499 A JP3248499 A JP 3248499A JP 24849991 A JP24849991 A JP 24849991A JP H05103757 A JPH05103757 A JP H05103757A
- Authority
- JP
- Japan
- Prior art keywords
- stand
- standing
- endoscope
- upright
- cleaning
- 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.)
- Granted
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)
- Instruments For Viewing The Inside Of Hollow Bodies (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は処置具挿入型内視鏡、特
に先端部に導いた処置具を起立させる起立台を有する側
視型内視鏡の構成に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a medical instrument insertion type endoscope, and more particularly, to a side-viewing type endoscope having a standing base for erecting a medical treatment instrument guided to a distal end.
【０００２】[0002]
【従来の技術】固体撮像素子であるＣＣＤ（Charge Cou
pled Device ）を先端部に有する電子内視鏡あるいは光
学的手段のみにて観察する内視鏡が周知であり、この種
の内視鏡では被観察体内の状態を観察するだけでなく、
鉗子等の各種処置具を用いて切開、生検、回収等の処置
が行われている。例えば、高周波ナイフ等の処置具によ
る乳頭部（十二指腸内）の切開が行われ、これに伴って
実施される内視鏡的膵胆管造影（ＥＲＣＰ）の検査等で
も処置具が用いられる。2. Description of the Related Art A CCD (Charge Cou
An endoscope that observes only with an electronic endoscope having a pled device) at its tip or only with optical means is known. In this type of endoscope, not only the state inside the observed body is observed,
Procedures such as incision, biopsy, and recovery are performed using various treatment tools such as forceps. For example, the incision of the papilla (in the duodenum) is performed with a treatment tool such as a high-frequency knife, and the treatment tool is also used in an endoscopic pancreatic cholangiography (ERCP) test performed accompanying this.
【０００３】図４には、従来における側視型の電子内視
鏡先端部の構造が示されており、この側視型タイプは、
内視鏡先端部１の先端正面部ではなく側面部に、処置具
挿通チャンネル２に連通した鉗子口３、そして不図示の
観察窓、照射窓等が配設されている。従って、内視鏡の
挿入方向に対して直角な方向に存在する部位の観察、処
置ができることになる。この内視鏡先端部１の側面部に
は、図示のように鉗子口３の方向へ回動する起立台４が
軸５により取り付けられ、この起立台４には操作部に連
結するワイヤ６が接続されている。従って、このワイヤ
６を引き操作することによって起立台４が回動され、こ
の回動する起立台４によって、鉗子口３から所定部位内
へ導入される処置具７（鎖線）を所定の位置まで起こす
ことができ、この起立状態の処置具７にて各種の処置が
行われることになる。FIG. 4 shows the structure of the tip of a conventional side-view type electronic endoscope.
A forceps port 3 communicating with the treatment instrument insertion channel 2, an observation window, an irradiation window, and the like (not shown) are provided on the side surface portion of the endoscope distal end portion 1 instead of the front surface portion. Therefore, it is possible to observe and treat a site existing in a direction perpendicular to the insertion direction of the endoscope. On the side surface of the endoscope distal end portion 1, a stand 4 which rotates in the direction of the forceps opening 3 is attached by a shaft 5 as shown in the figure, and a wire 6 which is connected to an operating portion is attached to the stand 4. It is connected. Therefore, by pulling the wire 6, the upright base 4 is rotated, and the rotating upright base 4 moves the treatment tool 7 (chain line) introduced from the forceps port 3 into a predetermined region to a predetermined position. It can be raised, and various treatments are performed by the treatment tool 7 in the standing state.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、従来に
おける内視鏡では、図４に示されるように起立台４が収
納されている収納部２００へ体液等が侵入し、この体液
等が特に時間経過と共に、起立台４と収納部２００の内
壁面Ａ，Ｂとの間に付着し、起立台４の起立動作を妨げ
るという問題があった。特に、この起立台４は起き上が
った状態で横方向へふらつかないように、この例では上
記内壁面Ａにぴったりと密着するように起立台４が配置
されており、収納部２００の内壁と起立台４の接触部分
に付着物が溜まると、起立動作に支障が生じることにな
る。However, in the conventional endoscope, as shown in FIG. 4, body fluid or the like enters the housing portion 200 in which the upright stand 4 is housed, and the body fluid or the like passes over time. At the same time, there is a problem in that it adheres between the upright table 4 and the inner wall surfaces A and B of the storage section 200 and hinders the upright operation of the upright table 4. In particular, in order to prevent the stand 4 from wobbling laterally in the raised state, in this example, the stand 4 is arranged so as to be in close contact with the inner wall A, and the inner wall of the storage section 200 and the stand If the deposits are accumulated in the contact portion of No. 4, the standing motion will be hindered.
【０００５】ところで、従来の内視鏡では、起立台４が
軸５を中心にして回動する構成となっているため、起立
台４を起こしたときに起立台４自体がふらつく傾向にあ
り、位置決めした処置具７を安定した状態で使用するこ
とができないという問題があった。すなわち、上記起立
台４は軸５の取付け部の壁と図４（ｂ）に示される先端
部１の壁面Ａ，Ｂにて起立位置が決定されることにな
る。このとき、処置具７は起立台４の先端部に当接して
固定されるから、起立台４が軸５を中心として振れるこ
とになるが、壁面Ａの存在によりこの壁面Ａ方向への振
れはある程度規制される。しかし、壁面Ｂはワイヤ６等
の配置関係から図示のように後退しているので、この壁
面Ｂ方向へ起立台４が振れてしまうことになる。一般
に、処置具７を用いる内視鏡では細かい部位の処置が多
く、例えば上述の内視鏡的乳頭部切開術においても、起
立台４の起立状態がしっかり安定しており、乳頭部へ処
置具７を正確に位置決めすることができる内視鏡が求め
られる。By the way, in the conventional endoscope, since the upright stand 4 is configured to rotate about the shaft 5, the upright stand 4 itself tends to wander when the upright stand 4 is raised. There is a problem that the positioned treatment tool 7 cannot be used in a stable state. That is, the standing position of the standing stand 4 is determined by the wall of the mounting portion of the shaft 5 and the wall surfaces A and B of the tip portion 1 shown in FIG. At this time, since the treatment tool 7 is fixed by abutting on the tip of the upright stand 4, the upright stand 4 swings around the shaft 5, but due to the presence of the wall surface A, the runout in the direction of the wall surface A does not occur. To some extent regulated. However, since the wall surface B is retracted as shown in the figure due to the positional relationship of the wires 6 and the like, the standing base 4 swings in the direction of the wall surface B. In general, an endoscope using the treatment instrument 7 often treats a fine portion. For example, even in the above-described endoscopic papillotomy, the standing state of the upright stand 4 is stable and the treatment instrument is placed on the nipple. There is a need for an endoscope that can accurately position 7.
【０００６】そこで、詳細は後述するが、本出願人は起
立台４の起立位置を規制する位置規制板を設けることを
提案しており、この場合には位置規制板と起立台４との
間の付着物が起立台４の動作を妨げることがある。この
ような起立台４及びその収納部２００については、内視
鏡を使用した後に外側から洗浄することも可能ではある
が、収納部２００の入口が狭く、良好な洗浄は行い難
い。Therefore, as will be described in detail later, the applicant of the present invention has proposed to provide a position regulating plate for regulating the standing position of the upright base 4, and in this case, between the position regulating plate and the upright base 4. The adhered substances may interfere with the operation of the stand 4. It is possible to wash the stand 4 and the storage portion 200 thereof from the outside after using the endoscope, but the inlet of the storage portion 200 is narrow, and it is difficult to perform good washing.
【０００７】本発明は上記問題点に鑑みてなされたもの
であり、その第１の目的は、起立台及びその収納部を洗
浄し、起立台の正常な動作を確保することができる処置
具挿入型内視鏡を提供することにある。The present invention has been made in view of the above problems, and a first object of the present invention is to insert a treatment tool capable of cleaning the standing base and its storage portion and ensuring normal operation of the standing base. To provide a mold endoscope.
【０００８】また、上記第１の目的を達成する際には、
この達成手段により内視鏡の径が大きくなることはでき
るだけ避けなければならず、しかもできるだけ無駄を省
くことが要請される。Further, in achieving the above first object,
Increasing the diameter of the endoscope by this means must be avoided as much as possible, and it is required to reduce waste as much as possible.
【０００９】そこで、本発明の第２の目的は、起立台及
びその収納部の洗浄を効率よくかつ簡略化した構成で行
うことができる処置具挿入型内視鏡を提供することにあ
る。Therefore, a second object of the present invention is to provide a treatment instrument insertion type endoscope capable of efficiently cleaning the stand and its housing with a simple structure.
【００１０】[0010]
【課題を解決するための手段】上記第１の目的を達成す
るために、第１請求項に係る発明は、内視鏡先端部の処
置具挿通チャンネルの出口近傍に起立台を有し、この起
立台により先端部に導かれた処置具を所定の方向へ曲げ
操作しながら各種の処置を行う処置具挿入型内視鏡にお
いて、上記起立台の収納部へ洗浄水を供給する洗浄水供
給手段を設けたことを特徴とする。また、第２の目的を
達成するために、第２請求項に係る発明は、上記起立台
収納部の壁に、起立台の起立動作により開閉する洗浄口
を設け、この洗浄口には観察窓を洗浄する洗浄水供給路
に連通する分岐供給路を接続し、洗浄水を観察窓と起立
台収納部へ選択的に供給するようにしたことを特徴とす
る。In order to achieve the above-mentioned first object, the invention according to the first aspect has an upright base near the exit of the treatment instrument insertion channel at the distal end of the endoscope. In a treatment instrument insertion-type endoscope that performs various treatments while bending a treatment instrument guided to the tip end by a standing stand in a predetermined direction, a cleaning water supply means for supplying cleaning water to the housing section of the standing stand. Is provided. In order to achieve a second object, the invention according to the second aspect provides a cleaning port which is opened and closed by a standing operation of the standing stand on a wall of the standing stand housing, and the cleaning port has an observation window. A branch supply passage communicating with a wash water supply passage for washing the washing water is connected to selectively supply the wash water to the observation window and the stand storage portion.
【００１１】[0011]
【作用】上記の構成によれば、例えば内視鏡内に配設さ
れた洗浄水供給路から起立台収納部の内壁に設けられた
洗浄口へ洗浄水が供給されることになり、これによって
収納部の内部から起立台及び収納部に付着する体液等を
除去することができる。According to the above construction, for example, the cleaning water is supplied from the cleaning water supply passage arranged in the endoscope to the cleaning port provided on the inner wall of the upright stand storage portion. It is possible to remove body fluid and the like attached to the stand and the storage unit from the inside of the storage unit.
【００１２】また、上記洗浄水の供給は、従来から行わ
れている観察窓への供給と選択的に行うことができ、こ
の場合は例えば起立台が起立していないときに観察窓の
洗浄が行われ、起立台が起立すると起立台及びその収納
部の洗浄が行われることになる。Further, the washing water can be selectively supplied to the observation window which has been conventionally used. In this case, for example, the observation window can be washed when the stand is not upright. When the stand is erected, the stand and its storage are cleaned.
【００１３】[0013]
【実施例】図１には、第１実施例に係る処置具挿入型の
側視型内視鏡の構成が示されており、図（ａ）は鉗子口
を下側にした状態の内視鏡先端部の側面図、図（ｂ）は
図（ａ）の底面図、図（ｃ）は図（ｂ）のＣ−Ｃ断面
図、図（ｄ）は図（ｂ）のＤ−Ｄ断面図である。図
（ａ）において、先端部１０は操作部に連結するワイヤ
１２ａ，１２ｂが取り付けられた状態で湾曲部１１に接
続されており、このワイヤ１２ａ，１２ｂを操作するこ
とによって先端部１０を曲げ操作することができる。ま
た、先端部１０内には湾曲部１１内に配設されている処
置具挿通チャンネル（鉗子チャンネル）１３に連通した
鉗子口１４が形成され、この処置具挿通チャンネル１３
を介して挿入された処置具７は鉗子口１４から外部へ導
出される。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows the constitution of a side-view endoscope of a treatment instrument insertion type according to the first embodiment, and FIG. 1 (a) shows an endoscope with a forceps port facing downward. A side view of the mirror tip, FIG. (B) is a bottom view of FIG. (A), FIG. (C) is a C-C sectional view of FIG. (B), and FIG. (D) is a D-D sectional view of FIG. It is a figure. In FIG. 3A, the tip portion 10 is connected to the bending portion 11 with wires 12a and 12b connected to the operating portion attached, and the tip portion 10 is bent by operating the wires 12a and 12b. can do. Further, a forceps port 14 communicating with a treatment instrument insertion channel (forceps channel) 13 arranged in the curved portion 11 is formed in the distal end portion 10, and the treatment instrument insertion channel 13 is formed.
The treatment instrument 7 inserted through the is guided out from the forceps port 14.
【００１４】また、各図に示されるように、上記鉗子口
１４の近傍の先端方向に、起立台１６が軸ピン１７によ
り回動自在に軸支され、この起立台１６にはワイヤ１８
が取り付けられ、このワイヤ１８を操作することによっ
て起立台１６を鎖線１００の位置まで回動させることが
できる。なお、この起立台１６には処置具７を受けるた
めの円弧溝１６ａが形成されており、鉗子口１４に挿入
される処置具７が起立台１６により起こされると、鎖線
で示されるように円弧溝１６ａと鉗子口１４の内壁に挟
まれて処置具７は起立状態を維持する。Further, as shown in each drawing, a standing base 16 is rotatably supported by a shaft pin 17 in the distal direction near the forceps port 14, and a wire 18 is attached to the standing base 16.
The pedestal 16 can be rotated to the position of the chain line 100 by operating the wire 18. An arcuate groove 16a for receiving the treatment tool 7 is formed in the upright table 16, and when the treatment tool 7 inserted into the forceps port 14 is raised by the upright table 16, an arc is formed as indicated by a chain line. The treatment instrument 7 is held in an upright state by being sandwiched between the groove 16a and the inner wall of the forceps opening 14.
【００１５】更に、先端部１０の中段からやや下側で起
立台１６の軸受け部の近傍に、例えばステンレスからな
る長方体の位置規制板２０が取り付けられると共に、図
１（ｃ）に示されるように起立台１６には長方体の上記
位置規制板２０の両側面を滑るように係合する係合溝１
６ｂが形成される。この構成によれば、起立台１６の係
合溝１６ｂの内面が位置規制板２０の両側面に接触する
ことによって、起立台１６の位置が規制され、起立台１
６が完全に起き上がった状態でも上記係合溝１６ｂは位
置規制板２０から外れることはない。従って、ワイヤ１
８の操作により起立台１６が起き上がり、図１（ａ）に
示されるように処置具７を起立させた場合でも、起立台
１６の横振れが防止され処置具７の起立位置を安定させ
ることができる。Further, a rectangular position regulating plate 20 made of, for example, stainless steel is attached near the bearing portion of the upright 16 slightly below the middle stage of the tip portion 10, and is shown in FIG. 1 (c). As described above, the upright base 16 is engaged with the engaging groove 1 which is slidably engaged with both side surfaces of the rectangular position regulating plate 20.
6b is formed. According to this configuration, the inner surface of the engagement groove 16b of the upright table 16 contacts both side surfaces of the position regulating plate 20, whereby the position of the upright table 16 is regulated, and the upright table 1
Even when 6 is completely raised, the engagement groove 16b does not come off the position regulating plate 20. Therefore, wire 1
Even when the stand 16 is raised by the operation 8 and the treatment instrument 7 is raised as shown in FIG. 1 (a), lateral shake of the stand 16 is prevented and the standing position of the treatment instrument 7 can be stabilized. it can.
【００１６】そして、上記湾曲部１１から先端部１０へ
起立台洗浄水供給路２１を配設すると共に、起立台１６
を収納する収納部２００の壁面Ａには洗浄口２２を設
け、この洗浄口２２へ上記起立台洗浄水供給路２１が繋
がるように構成する。この構成によれば、何時でも上記
起立台洗浄水供給路２１を介して収納部２００の中段部
分から収納部２００及び起立台１６へ洗浄水を供給する
ことができる。A standing stand washing water supply passage 21 is provided from the curved portion 11 to the tip portion 10, and the standing stand 16 is provided.
A cleaning port 22 is provided on the wall surface A of the storage unit 200 for storing the water, and the standing stand cleaning water supply passage 21 is connected to the cleaning port 22. According to this configuration, the wash water can be supplied from the middle part of the storage section 200 to the storage section 200 and the upright stand 16 via the upright stand wash water supply passage 21 at any time.
【００１７】図１（ａ）において、先端部１０の中段の
位置規制板２０の裏側にはＣＣＤ２５が配設され、この
ＣＣＤ２５には、図１（ｂ）に示される観察窓２６が光
学的に接続され、この観察窓２６の近傍に照明窓２７が
設けられる。図１（ｄ）に示されるように、上記観察窓
２６にイメージガイド２８、照明窓２７にはライトガイ
ド２９が接続される。従って、照明窓２７から所定光を
照射して得られた被観察体像は、観察窓２６を介してＣ
ＣＤ２５で捉えられ、最終的にはモニタへ画像表示され
ることになる。また、上記観察窓２６の近傍には、洗浄
水を噴射するノズル３０が設けられ、このノズル３０に
は空気（Air ）及び洗浄水（Water ）を供給するＡ／Ｗ
供給路３１が設けられており、観察窓２６部分には空気
や洗浄水が供給できるようになっている。従って、第１
実施例では、図１（ｃ），（ｄ）に示されるように、洗
浄口２２に連通する起立台洗浄水供給路２１は、上記Ａ
／Ｗ供給路３１とは別個に設けられることになる。In FIG. 1A, a CCD 25 is arranged on the back side of the position regulating plate 20 in the middle stage of the tip portion 10, and an observation window 26 shown in FIG. 1B is optically provided in this CCD 25. An illumination window 27 is provided in the vicinity of the observation window 26, which is connected. As shown in FIG. 1D, an image guide 28 is connected to the observation window 26 and a light guide 29 is connected to the illumination window 27. Therefore, the observed object image obtained by irradiating the predetermined light from the illumination window 27 is C through the observation window 26.
It is captured by the CD 25 and finally displayed as an image on the monitor. A nozzle 30 for injecting cleaning water is provided in the vicinity of the observation window 26, and A / W for supplying air (Air) and cleaning water (Water) to the nozzle 30.
A supply path 31 is provided so that the observation window 26 can be supplied with air or cleaning water. Therefore, the first
In the embodiment, as shown in FIGS. 1C and 1D, the standing stand cleaning water supply passage 21 communicating with the cleaning port 22 has the above-mentioned A
It will be provided separately from the / W supply path 31.
【００１８】図２には、電子内視鏡の全体図が示されて
おり、電子内視鏡は先端部１０、湾曲部１１、挿入部３
３、操作部３４を有する支持部３５、そしてケーブル３
６を介して外部装置に接続するためのコネクタ部３７か
ら構成されている。上記支持部３５の前端部には、上記
処置具挿通チャンネル１３に連通する鉗子挿入口３８
と、上記起立台洗浄水供給路２１に連通する洗浄水供給
口４０が配設されている。また、操作部３４にはカメラ
シャッタ釦４１ａ、吸引釦４１ｂ、送気送水釦４１ｃ、
上下アングルツマミ４１ｄ、左右アングルツマミ４１
ｅ、上下ロックレバー４１ｆ、左右ロックレバー４１
ｇ、そして上記起立台１６をワイヤ１８によって操作す
る起立ツマミ４１ｈが設けられる。FIG. 2 shows an overall view of the electronic endoscope. The electronic endoscope has a tip portion 10, a bending portion 11, and an insertion portion 3.
3, the support portion 35 having the operation portion 34, and the cable 3
It is composed of a connector portion 37 for connecting to an external device via 6. A forceps insertion opening 38 communicating with the treatment instrument insertion channel 13 is provided at the front end of the support portion 35.
A cleaning water supply port 40 communicating with the upright stand cleaning water supply passage 21 is provided. Further, the operation unit 34 includes a camera shutter button 41a, a suction button 41b, an air / water button 41c,
Upper and lower angle knobs 41d, left and right angle knobs 41
e, vertical lock lever 41f, left and right lock lever 41
g, and an upright knob 41h for operating the upright table 16 with a wire 18.
【００１９】第１実施例は以上の構成からなり、電子内
視鏡においては観察窓２６から撮像された被観察体内の
画像を観察しながら、各種の処置を行う処置具７が鉗子
挿入口３８から処置具挿通チャンネル１３を介して鉗子
口１４へ導入されることになる。この鉗子口１４におい
ては、処置具７が鉗子口１４から飛び出た時点で起立ツ
マミ４１ｈを操作してワイヤ１８を引っ張ると、図１
（ａ）に示されるように、起立台１６は位置規制板２０
によってその位置が規制された状態で起き上がり、従っ
て処置具７は起立台１６と鉗子口１４の内壁との間に挟
まれることになる。この状態で、例えば処置具７により
内視鏡的乳頭部切開が行われることになるが、上記処置
具７は位置規制板２０の位置規制によって振れることが
なく、精密な切開処置を良好に行うことができる。The first embodiment is constructed as described above, and in the electronic endoscope, the treatment tool 7 for performing various treatments while observing the image of the inside of the observed body imaged through the observation window 26 has the forceps insertion port 38. Is introduced into the forceps opening 14 through the treatment instrument insertion channel 13. In the forceps opening 14, when the treatment tool 7 is ejected from the forceps opening 14, the standing knob 41h is operated to pull the wire 18,
As shown in (a), the stand 16 is provided with the position regulating plate 20.
Thus, the treatment tool 7 rises up with its position regulated, so that the treatment tool 7 is sandwiched between the upright table 16 and the inner wall of the forceps opening 14. In this state, for example, an endoscopic papilla incision is performed by the treatment instrument 7, but the treatment instrument 7 does not shake due to the position regulation of the position regulation plate 20, and a precise incision treatment is favorably performed. be able to.
【００２０】そうして、実施例では上記の処置が終了し
た時点、あるいは処置の最中で、洗浄水供給口４０から
起立台洗浄水供給パイプ２１へ洗浄水を入れると、洗浄
口２２から収納部２００内へ洗浄水が流入される。従っ
て、この洗浄水により起立台１６及び収納部２００に侵
入した体液等は洗浄され、起立台１６と収納部２００の
壁面Ａ，Ｂとの間、あるいは係合溝１６ｂと位置規制板
２０との間に付着物が発生するのを防止することができ
る。Thus, in the embodiment, when the cleaning water is introduced from the cleaning water supply port 40 into the standing stand cleaning water supply pipe 21 at the time when the above-mentioned treatment is completed or during the treatment, the cleaning water is accommodated from the cleaning port 22. The washing water flows into the part 200. Therefore, the body fluid and the like that have entered the stand 16 and the storage section 200 are washed by this cleaning water, and the space between the stand 16 and the wall surfaces A and B of the storage section 200, or between the engagement groove 16b and the position regulating plate 20. It is possible to prevent deposits from being generated in the meantime.
【００２１】図３には、第２実施例の構成が示されてお
り、図（ａ）は鉗子口を下側にした状態の内視鏡先端部
の側面図、図（ｂ）は図（ａ）の底面図、図（ｃ）は図
（ｂ）のＣ−Ｃ断面図、図（ｄ）は図（ｂ）のＤ−Ｄ断
面図である。第２実施例は、起立台と観察窓への洗浄水
供給を選択的に行えるようにしたものであり、図の鎖線
１１０で示されるように、収納部２００の壁面Ａにおい
て洗浄口２３を起立台１６で塞ぐことができる位置に配
設する。実施例では、起立台１６が回動角度を３０度程
度起き上がると、上記洗浄口２３が露出するように配置
構成する。そして、図（ｂ），（ｃ）に示されるよう
に、上記洗浄口２３にはＡ／Ｗ供給路３１へ接続する分
岐供給路３２を形成する。すなわち、第１実施例で説明
したように、観察窓２６の近傍にはノズル３０が設けら
れ、このノズル３０へ空気及び洗浄水を供給するＡ／Ｗ
供給路３１が設けられており、このＡ／Ｗ供給路３１か
ら上記分岐供給路３２を通った洗浄水を収納部２００へ
導くようにする。FIG. 3 shows the configuration of the second embodiment. FIG. 3 (a) is a side view of the distal end portion of the endoscope with the forceps port facing downward, and FIG. (a) is a bottom view, (c) is a sectional view taken along line CC of FIG. (b), and (d) is a sectional view taken along line D-D of (b). In the second embodiment, cleaning water can be selectively supplied to the stand and the observation window, and as shown by a chain line 110 in the figure, the cleaning port 23 is raised on the wall surface A of the storage section 200. The table 16 is arranged at a position where it can be closed. In the embodiment, the cleaning port 23 is exposed when the stand 16 is raised up by about 30 degrees. Then, as shown in FIGS. 2B and 2C, a branch supply passage 32 connected to the A / W supply passage 31 is formed in the cleaning port 23. That is, as described in the first embodiment, the nozzle 30 is provided in the vicinity of the observation window 26, and the A / W for supplying air and cleaning water to the nozzle 30.
A supply path 31 is provided, and the cleaning water that has passed through the branch supply path 32 is guided from the A / W supply path 31 to the storage section 200.
【００２２】この第２実施例によれば、起立台１６が起
立していないときには、図３（ｃ）に示されるように、
洗浄口２３を起立台１６によって塞ぎ、Ａ／Ｗ供給路３
１から供給される洗浄水はノズル３０から観察窓２６へ
噴射されることになる。一方、図３（ａ）に示されるよ
うに、起立台１６が実線の位置（約３０度）まで起き上
がると、洗浄口２３が完全に露出することになり、分岐
供給路３２を介してＡ／Ｗ供給路３１から洗浄水が供給
できる状態になる。この場合、観察窓２６へも洗浄水が
供給できる状態となっているが、ノズル３０では所定の
噴射力を維持するためにノズル開口が絞られており、洗
浄口２３が開口している場合には、ほとんどの洗浄水が
洗浄口３０へ導かれることになる。このように第２実施
例では、従来から設けられているＡ／Ｗ供給路３１を利
用し、かつ起立台１６の起立状態にて洗浄水の供給先を
選択することにより、洗浄水の供給手段を簡略化するこ
とができる。従って、内視鏡の径も太くする必要がな
く、特に湾曲部１１の充填率が減少して耐久性も向上す
るという利点がある。According to the second embodiment, when the stand 16 is not standing, as shown in FIG. 3 (c),
The cleaning port 23 is closed by the stand 16, and the A / W supply path 3
The cleaning water supplied from No. 1 is jetted from the nozzle 30 to the observation window 26. On the other hand, as shown in FIG. 3A, when the upright stand 16 rises up to the position indicated by the solid line (about 30 degrees), the cleaning port 23 is completely exposed, and A / A is supplied via the branch supply path 32. The wash water can be supplied from the W supply path 31. In this case, the washing water can be supplied also to the observation window 26, but in the case of the nozzle 30, the nozzle opening is narrowed in order to maintain a predetermined jetting force, and the washing port 23 is opened. Means that most of the cleaning water is guided to the cleaning port 30. As described above, in the second embodiment, by using the A / W supply path 31 that has been conventionally provided and selecting the supply destination of the cleaning water in the standing state of the upright stand 16, the cleaning water supply unit is provided. Can be simplified. Therefore, it is not necessary to increase the diameter of the endoscope, and there is an advantage that the filling rate of the bending portion 11 is particularly reduced and the durability is improved.
【００２３】上記第２実施例では、収納部２００におい
て起立台１６の不起立時に塞がれる位置に洗浄口２３を
配設するようにしたが、逆に起立台１６の起立時に塞が
れる位置に洗浄口を配設することも可能である。In the second embodiment described above, the cleaning port 23 is arranged at the position where the upright stand 16 is closed when the upright stand 16 is standing up in the storage section 200. On the contrary, the cleaning port 23 is closed when the upright stand 16 is upright. It is also possible to arrange a cleaning port in the.
【００２４】[0024]
【発明の効果】以上説明したように、第１請求項の発明
によれば、先端部に導かれた処置具を起立台により所定
方向へ曲げ操作する内視鏡において、上記起立台の収納
部へ洗浄水を供給する洗浄水供給手段を設けたので、起
立台及びその収納部の洗浄が容易に行え、起立台の円滑
な起立動作を常時維持することが可能となる。As described above, according to the invention of the first aspect, in the endoscope in which the treatment instrument guided to the distal end portion is bent and operated in the predetermined direction by the stand, the accommodating portion of the stand is provided. Since the cleaning water supply means for supplying the cleaning water is provided, it is possible to easily clean the stand and its storage portion, and it is possible to always maintain a smooth stand-up operation of the stand.
【００２５】また、第２請求項の発明によれば、起立台
収納部の壁に起立台の起立動作により開閉する洗浄口を
設け、この洗浄口に観察窓を洗浄する洗浄水供給路から
洗浄水を供給できるようにしたので、一本の洗浄水供給
路によって洗浄水を観察窓と起立台収納部へ選択的に効
率よく供給することができる。従って、内視鏡内に新た
な洗浄水供給路を設ける必要がなく、内視鏡の充填率の
減少や細径化を図ることが可能となる。According to the second aspect of the invention, the wall of the stand housing portion is provided with a cleaning port which is opened and closed by the standing motion of the standing table, and the cleaning port is used to clean the observation window from the cleaning water supply passage. Since the water can be supplied, the cleaning water can be selectively and efficiently supplied to the observation window and the upright stand storage portion by the single cleaning water supply passage. Therefore, it is not necessary to provide a new washing water supply passage in the endoscope, and it is possible to reduce the filling rate and the diameter of the endoscope.
【図１】本発明の第１実施例に係る処置具挿入型内視鏡
の構成を示す図であり、図（ａ）は先端部側面を示す断
面図、図（ｂ）は図（ａ）の内視鏡の底面図、図（ｃ）
は図（ｂ）のＣ−Ｃ断面図、図（ｄ）は図（ｂ）のＤ−
Ｄ断面図である。1A and 1B are diagrams showing a configuration of a treatment instrument insertion endoscope according to a first embodiment of the present invention, FIG. 1A is a sectional view showing a side surface of a distal end portion, and FIG. Bottom view of the endoscope, Figure (c)
Is a cross-sectional view taken along the line C-C of FIG. (B), and FIG.
FIG.
【図２】実施例の電子内視鏡の全体構成を示す図であ
る。FIG. 2 is a diagram showing an overall configuration of an electronic endoscope of an embodiment.
【図３】第２実施例の内視鏡の構成を示す図であり、図
（ａ）は先端部側面を示す断面図、図（ｂ）は図（ａ）
の内視鏡の底面図、図（ｃ）は図（ｂ）のＣ−Ｃ断面
図、図（ｄ）は図（ｂ）のＤ−Ｄ断面図である。3A and 3B are diagrams showing a configuration of an endoscope of a second embodiment, FIG. 3A is a sectional view showing a side surface of a distal end portion, and FIG.
2C is a bottom view of the endoscope, FIG. 6C is a cross-sectional view taken along the line CC of FIG. 7B, and FIG. 6D is a cross-sectional view taken along the line D-D of FIG.
【図４】従来における電子内視鏡の先端部の構成を示す
図であり、図（ａ）は側面断面図、図（ｂ）は図（ａ）
の内視鏡の底面図である。4A and 4B are diagrams showing a configuration of a tip portion of a conventional electronic endoscope, in which FIG. 4A is a side sectional view and FIG.
It is a bottom view of the endoscope of FIG.
１，１０ … 先端部、 ２，１３ … 処置具挿通チャンネル、 ３，１４ … 鉗子口、 ４，１６ … 起立台、 ７ … 処置具、 １６ｂ … 係合溝、 ２０ … 位置規制板、 ２１ … 起立台洗浄水供給路、 ２２，２３ … 洗浄口、 ３１ … Ａ／Ｗ供給路、 ３２ … 分岐供給路、 ４１ｈ … 起立ツマミ、 ２００ … 収納部。 1, 10 ... Tip part, 2, 13 ... Treatment tool insertion channel, 3, 14 ... Forceps port, 4, 16 ... Standing stand, 7 ... Treatment tool, 16b ... Engagement groove, 20 ... Position regulating plate, 21 ... Standing Stand cleaning water supply channel, 22, 23 ... Cleaning port, 31 ... A / W supply channel, 32 ... Branch supply channel, 41h ... Standing knob, 200 ... Storage section.
─────────────────────────────────────────────────────
─────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成４年１０月１６日[Submission date] October 16, 1992
【手続補正１】[Procedure Amendment 1]
【補正対象書類名】図面[Document name to be corrected] Drawing
【補正対象項目名】図３[Name of item to be corrected] Figure 3
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【図３】 [Figure 3]
Claims (2)
出口近傍に起立台を有し、この起立台により先端部に導
かれた処置具を所定の方向へ曲げ操作しながら各種の処
置を行う処置具挿入型内視鏡において、上記起立台の収
納部へ洗浄水を供給する洗浄水供給手段を設けたことを
特徴とする処置具挿入型内視鏡。1. A standing stand is provided in the vicinity of the exit of the treatment tool insertion channel at the distal end of the endoscope, and various treatments are performed while bending the treatment tool guided to the distal end by the standing stand in a predetermined direction. The treatment instrument insertion type endoscope to be performed is characterized in that it is provided with cleaning water supply means for supplying washing water to the housing portion of the upright table.
動作により開閉する洗浄口を設け、この洗浄口には観察
窓を洗浄する洗浄水供給路に連通する分岐供給路を接続
し、洗浄水を観察窓と起立台収納部へ選択的に供給する
ようにしたことを特徴とする上記第１請求項記載の処置
具挿入型内視鏡。2. A washing port that is opened and closed by the standing motion of the standing table is provided on the wall of the stand housing, and a branch supply path communicating with a cleaning water supply path for cleaning the observation window is connected to the cleaning port. The treatment instrument insertion type endoscope according to claim 1, wherein the cleaning water is selectively supplied to the observation window and the upright stand storage section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3248499A JP3048441B2 (en) | 1991-09-03 | 1991-09-03 | Treatment instrument insertion type endoscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3248499A JP3048441B2 (en) | 1991-09-03 | 1991-09-03 | Treatment instrument insertion type endoscope |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05103757A true JPH05103757A (en) | 1993-04-27 |
| JP3048441B2 JP3048441B2 (en) | 2000-06-05 |
Family
ID=17179085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3248499A Expired - Fee Related JP3048441B2 (en) | 1991-09-03 | 1991-09-03 | Treatment instrument insertion type endoscope |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3048441B2 (en) |
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|---|---|---|---|---|
| WO2001078581A1 (en) * | 2000-04-17 | 2001-10-25 | Olympus Optical Co., Ltd. | Endoscope and endoscope system of the endoscope |
| CN106821285A (en) * | 2017-02-08 | 2017-06-13 | 深圳开立生物医疗科技股份有限公司 | A kind of endoscope headstock and endoscope for eliminating sterilization dead angle |
| WO2018079790A1 (en) * | 2016-10-28 | 2018-05-03 | オリンパス株式会社 | Endoscope |
| JP2018134308A (en) * | 2017-02-23 | 2018-08-30 | 富士フイルム株式会社 | Endoscope |
| JP2018138115A (en) * | 2017-02-24 | 2018-09-06 | 富士フイルム株式会社 | Endoscope |
| WO2019146330A1 (en) * | 2018-01-26 | 2019-08-01 | 富士フイルム株式会社 | Endoscope |
-
1991
- 1991-09-03 JP JP3248499A patent/JP3048441B2/en not_active Expired - Fee Related
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|---|---|---|---|---|
| JP2002034905A (en) * | 2000-04-17 | 2002-02-05 | Olympus Optical Co Ltd | Endoscope, and its endoscope system |
| US7087010B2 (en) | 2000-04-17 | 2006-08-08 | Olympus Corporation | Endoscope and endoscope system thereof |
| US7341555B2 (en) | 2000-04-17 | 2008-03-11 | Olympus Corporation | Method of using a guide wire, therapeutic instrument and endoscope |
| WO2001078581A1 (en) * | 2000-04-17 | 2001-10-25 | Olympus Optical Co., Ltd. | Endoscope and endoscope system of the endoscope |
| JPWO2018079790A1 (en) * | 2016-10-28 | 2019-09-19 | オリンパス株式会社 | Endoscope |
| WO2018079790A1 (en) * | 2016-10-28 | 2018-05-03 | オリンパス株式会社 | Endoscope |
| US11317786B2 (en) | 2016-10-28 | 2022-05-03 | Olympus Corporation | Endoscope |
| CN106821285A (en) * | 2017-02-08 | 2017-06-13 | 深圳开立生物医疗科技股份有限公司 | A kind of endoscope headstock and endoscope for eliminating sterilization dead angle |
| JP2018134308A (en) * | 2017-02-23 | 2018-08-30 | 富士フイルム株式会社 | Endoscope |
| CN108542336A (en) * | 2017-02-24 | 2018-09-18 | 富士胶片株式会社 | Endoscope |
| US10806338B2 (en) | 2017-02-24 | 2020-10-20 | Fujifilm Corporation | Endoscope |
| CN108542336B (en) * | 2017-02-24 | 2022-03-29 | 富士胶片株式会社 | Endoscope with a detachable handle |
| JP2018138115A (en) * | 2017-02-24 | 2018-09-06 | 富士フイルム株式会社 | Endoscope |
| WO2019146330A1 (en) * | 2018-01-26 | 2019-08-01 | 富士フイルム株式会社 | Endoscope |
| JPWO2019146330A1 (en) * | 2018-01-26 | 2020-12-17 | 富士フイルム株式会社 | Endoscope |
| US12004711B2 (en) | 2018-01-26 | 2024-06-11 | Fujifilm Corporation | Endoscope |
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| Publication number | Publication date |
|---|---|
| JP3048441B2 (en) | 2000-06-05 |
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