JP2002238906A - Ultrasonic endoscope - Google Patents
Ultrasonic endoscopeInfo
- Publication number
- JP2002238906A JP2002238906A JP2001044587A JP2001044587A JP2002238906A JP 2002238906 A JP2002238906 A JP 2002238906A JP 2001044587 A JP2001044587 A JP 2001044587A JP 2001044587 A JP2001044587 A JP 2001044587A JP 2002238906 A JP2002238906 A JP 2002238906A
- Authority
- JP
- Japan
- Prior art keywords
- mounting portion
- nozzle
- observation
- observation window
- treatment tool
- 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
Landscapes
- Endoscopes (AREA)
- Ultra Sonic Daignosis Equipment (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、患者その他の被験
者の体内等に挿入されて、体内の検査や診断を行うと共
に、体内組織の状態を超音波検査できるようにした超音
波内視鏡に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ultrasonic endoscope which is inserted into the body of a patient or another subject to perform examinations and diagnoses inside the body and to enable ultrasonic examination of the state of internal tissues. Things.
【０００２】[0002]
【従来の技術】被験者の体内の検査・診断を行うための
装置としては、内視鏡及び超音波検査装置がある。内視
鏡は体腔内壁表面の状態を検査するものであり、また超
音波検査装置は体内組織の状態を検査するためのもので
ある。さらに、内視鏡による観察機構に超音波検査機構
を付加した超音波内視鏡も広く用いられている。超音波
内視鏡は、体腔内に挿入される挿入部の先端部分に、照
明窓及び観察窓を形成した内視鏡観察機構と、超音波ト
ランスデューサを装着した超音波検査機構とを設ける構
成としたものである。2. Description of the Related Art Endoscopes and ultrasonic inspection apparatuses are known as apparatuses for performing examinations and diagnoses in the body of a subject. The endoscope inspects the state of the inner wall surface of the body cavity, and the ultrasonic inspection apparatus inspects the state of the body tissue. Further, an ultrasonic endoscope in which an ultrasonic inspection mechanism is added to an observation mechanism using an endoscope is also widely used. The ultrasonic endoscope has a configuration in which an endoscope observation mechanism in which an illumination window and an observation window are formed and an ultrasonic inspection mechanism in which an ultrasonic transducer is mounted are provided at a distal end portion of an insertion portion inserted into a body cavity. It was done.
【０００３】超音波検査機構を構成する超音波トランス
デューサは、その走査方式として、メカニカル走査方式
の超音波トランスデューサと、電子走査式の超音波トラ
ンスデューサとがある。電子走査式の超音波トランスデ
ューサを用いる場合には、超音波振動子が多数配列され
るので、メカニカル走査方式のものより広い装着スペー
スを必要とする。特に、電子走査式の超音波トランスデ
ューサを備えた超音波内視鏡にあっては、先端硬質部に
設けられる内視鏡観察手段と超音波検査手段とのうち、
超音波検査手段を内視鏡観察手段より先端側に配置する
のが一般的である。Ultrasonic transducers constituting an ultrasonic inspection mechanism include a mechanical scanning ultrasonic transducer and an electronic scanning ultrasonic transducer as scanning methods. When an electronic scanning type ultrasonic transducer is used, since a large number of ultrasonic transducers are arranged, a wider mounting space is required than that of the mechanical scanning type. In particular, in an ultrasonic endoscope provided with an electronic scanning ultrasonic transducer, of the endoscope observation means and ultrasonic inspection means provided in the distal end hard portion,
Generally, the ultrasonic inspection means is disposed on the distal end side of the endoscope observation means.
【０００４】挿入部は体内に挿入されるものであり、そ
の挿入経路には狭窄部がある等の関係で、その全体、特
に先端硬質部は概略円柱状となし、エッジや突出部等が
生じない形状とするのが望ましい。内視鏡観察手段より
先端側に超音波検査手段を配置する場合には、この内視
鏡観察手段による観察視野は挿入部の軸線と直交する方
向である側視型、または斜め前方を観察視野とする斜視
型のものとなる。従って、挿入部の挿入方向前方を内視
鏡観察手段の視野内に取り込むには、斜視型の内視鏡と
して構成しなければならない。[0004] The insertion portion is inserted into the body, and since the insertion path has a stenosis portion, the entire portion, particularly the hard portion at the distal end, has a substantially columnar shape, and an edge or a protruding portion occurs. It is desirable to have no shape. When the ultrasonic inspection means is disposed on the distal end side of the endoscope observation means, the observation field of view of the endoscope observation means is a side-view type which is a direction orthogonal to the axis of the insertion portion, or an oblique front view. And a perspective type. Therefore, in order to take the front of the insertion section in the insertion direction into the field of view of the endoscope observation means, it must be configured as a perspective endoscope.
【０００５】超音波検査手段を内視鏡観察手段より先端
側に配置し、かつ内視鏡観察手段の観察視野が斜め前方
となった斜視型とする場合には、挿入部の先端硬質部に
傾斜面を設けなければならない。先端硬質部の外周面か
ら外方への突出部を設けるのは挿入操作性等から望まし
くはないことから、先端硬質部の外周面を斜め下方に切
り込むように斜面部を形成し、この斜面部に内視鏡観察
手段を設けることになる。内視鏡観察手段を設けた斜面
部より前方側の位置に超音波検査手段を構成する超音波
トランスデューサが装着される。この超音波トランスデ
ューサが装着される部分は平坦面とすることもできる
が、超音波検査範囲、つまり超音波観測視野をできるだ
け広くするためには、超音波トランスデューサを構成す
る所定数の超音波振動子を凸湾曲形状に配列する。この
ように配置することによりコンベックス電子走査が行わ
れる。In the case where the ultrasonic inspection means is disposed on the distal end side of the endoscope observation means and the observation field of view of the endoscope observation means is a diagonally forward oblique type, the ultrasonic inspection means is provided at the distal end hard portion of the insertion portion. A slope must be provided. Since it is not desirable to provide a protruding portion from the outer peripheral surface of the distal end hard portion to the outside due to insertion operability and the like, a slope portion is formed so that the outer peripheral surface of the distal end hard portion is cut diagonally downward. Is provided with an endoscope observation means. An ultrasonic transducer constituting the ultrasonic inspection means is mounted at a position on the front side of the slope provided with the endoscope observation means. The part on which the ultrasonic transducer is mounted may be a flat surface, but in order to maximize the ultrasonic inspection range, that is, the ultrasonic observation field of view, a predetermined number of ultrasonic transducers constituting the ultrasonic transducer Are arranged in a convexly curved shape. With this arrangement, convex electronic scanning is performed.
【０００６】従って、先端硬質部は、その外周面から斜
め前方に立ち下がる斜面部と、この斜面部の前方位置で
一度立ち上がり、頂部から前方に向けて立ち下がるよう
にした凸湾曲形状となった湾曲面部とを有する形状とな
る。斜面部に内視鏡観察手段が設けられ、湾曲面部にそ
の頂部を含む前後の位置に超音波トランスデューサが装
着される。内視鏡観察手段の構成としては、少なくとも
照明窓と、観察窓とを備えたものとなる。照明窓は、体
内における観察視野の全体をできるだけ均等に照明する
ために、観察窓を挟んだ左右両側に設けるのが一般的で
ある。内視鏡観察手段及び超音波検査手段により患部等
が発見された時には、鉗子や高周波処置具等といった内
視鏡観察手段の観察下で使用される処置具や、穿刺針を
有する穿刺処置具といった超音波検査手段の観察下で使
用される処置具を用いて治療や組織採取等の処置を施さ
れる。このように処置具を挿通するの処置具挿通チャン
ネルが挿入部内に設けられ、この処置具挿通チャンネル
の先端は先端硬質部において処置具導出口として開口さ
せるようにする。処置具導出口から突出する処置具を内
視鏡観察手段及び超音波検査手段の視野に入れる必要が
ある関係から、この処置具導出口は、その全体乃至大半
の部分が斜面部に開口させる。Accordingly, the tip end hard portion has a sloped portion which falls obliquely forward from the outer peripheral surface thereof, and a convex curved shape which rises once at a position in front of the sloped portion and falls forward from the top. It has a shape having a curved surface portion. Endoscope observation means is provided on the slope portion, and the ultrasonic transducer is mounted on front and rear positions including the top portion on the curved surface portion. The configuration of the endoscope observation means includes at least an illumination window and an observation window. Illumination windows are generally provided on both left and right sides of the observation window in order to illuminate the entire observation visual field in the body as uniformly as possible. When an affected part or the like is found by the endoscope observation means and the ultrasonic inspection means, a treatment tool used under observation of the endoscope observation means, such as forceps or a high-frequency treatment tool, or a puncture treatment tool having a puncture needle Treatment such as treatment and tissue collection is performed using a treatment tool used under observation by the ultrasonic examination means. In this way, the treatment tool insertion channel for inserting the treatment tool is provided in the insertion portion, and the distal end of the treatment tool insertion channel is opened at the rigid distal end portion as a treatment tool outlet. Since the treatment tool protruding from the treatment tool outlet needs to be placed in the field of view of the endoscope observation means and the ultrasonic inspection means, the entire or most part of the treatment tool outlet is opened to the slope.
【０００７】観察窓により得られる体内の観察視野は常
に良好に保つ必要があり、観察窓の表面に体液その他の
汚損物が付着すると、直ちにこの汚損物を洗い流すよう
にしなければならない。このために、洗浄水及び加圧エ
アを噴射するノズルを設け、このノズルから観察窓に向
けて洗浄水を噴射させて汚損物を除去し、次いで観察窓
に残存する水滴等を加圧エアで吹き飛ばすようにする。
従って、前述した照明窓，観察窓及び処置具導出口と共
にノズルが斜面部に装着される。[0007] The observation field inside the body obtained by the observation window must always be kept good. When body fluids or other contaminants adhere to the surface of the observation window, the contaminants must be washed away immediately. For this purpose, a nozzle for injecting cleaning water and pressurized air is provided, the cleaning water is jetted from the nozzle toward the observation window to remove contaminants, and then water droplets and the like remaining in the observation window are pressed with pressurized air. Try to blow it off.
Therefore, the nozzle is mounted on the slope together with the above-described illumination window, observation window, and treatment tool outlet.
【０００８】[0008]
【発明が解決しようとする課題】体内への挿入操作性な
どの観点から、挿入部はできるだけ細径化する必要があ
り、斜面部の面積は限られたものとなる。内視鏡による
観察視野は挿入部のできるだけ中央位置にある方が望ま
しく、このためには観察窓は斜面部の中央に配置する。
観察視野の全体にわたって照明むらが発生しないよにす
るために、照明窓は観察窓の左右両側に配置する。処置
具導出口は観察窓のほぼ真下の位置に配置するのが処置
具の操作性等の点で望ましい。ノズルは観察窓に向けて
洗浄用流体を噴射するものであるから、その配設位置は
観察窓と密接な関係がある。From the viewpoint of the operability of insertion into the body, it is necessary to make the diameter of the insertion portion as small as possible, and the area of the slope portion is limited. It is desirable that the observation field of view by the endoscope be located as centrally as possible in the insertion section.
The illumination windows are arranged on the left and right sides of the observation window in order to prevent uneven illumination from occurring throughout the observation field. It is desirable that the treatment instrument outlet be disposed almost directly below the observation window in terms of operability of the treatment instrument. Since the nozzle ejects the cleaning fluid toward the observation window, its arrangement position is closely related to the observation window.
【０００９】以上のことから、従来技術においては、ノ
ズルも斜面部に配置するようにしている。ただし、この
ノズルの配設位置は極めて限定されたものとなり、具体
的には、観察窓の上部乃至斜め上部位置にしかノズルを
配置できないことになる。しかも、ノズルは内視鏡観察
手段による観察視野に入り込まないようにするには、斜
面部からの突出高さが制約される。このために、ノズル
の噴射口からの洗浄液及び加圧エアの流れ方向は斜面部
の表面に沿ったものとなり、かつノズル自体も小型化し
なければならない。このために、噴射口の開口幅が制約
され、観察窓の全面を効率的に洗浄できなくなる可能性
があり、多量の洗浄水を噴射させなければならなくな
る。また、噴射口から噴射される洗浄液や加圧エアは斜
面部の表面に沿って上方または斜め上方から下降する方
向に流れるようになる。この方向に洗浄水を流すと、斜
面部と、この斜面部の下端部から立ち上がる湾曲面部と
の間に洗浄水が溜る可能性があり、このように滞留した
洗浄水により内視鏡観察手段による観察に支障を来すお
それがある。また、観察窓とほぼ平行に洗浄用流体を流
すと、特に加圧エアを観察窓とほぼ平行な方向に向けて
噴射すると、この観察窓に付着している水滴等に対して
十分な圧力を作用させることができず、水滴等の除去が
困難になるという問題点もある。From the above, in the prior art, the nozzles are also arranged on the slope. However, the arrangement position of the nozzle is extremely limited, and specifically, the nozzle can be arranged only at the upper position or the oblique upper position of the observation window. Moreover, in order to prevent the nozzle from entering the observation field of view by the endoscope observation means, the protruding height from the slope is restricted. For this reason, the flow direction of the cleaning liquid and the pressurized air from the nozzle orifice is along the surface of the slope, and the nozzle itself must be downsized. For this reason, the opening width of the injection port is restricted, and there is a possibility that the entire surface of the observation window cannot be efficiently cleaned, and a large amount of cleaning water must be sprayed. Further, the cleaning liquid and the pressurized air injected from the injection port flow in the direction of descending from above or obliquely upward along the surface of the slope portion. When the washing water flows in this direction, there is a possibility that washing water may collect between the slope portion and the curved surface portion rising from the lower end of the slope portion. Observation may be hindered. In addition, when the cleaning fluid is flowed substantially parallel to the observation window, especially when pressurized air is jetted in a direction substantially parallel to the observation window, a sufficient pressure is applied to water droplets and the like adhering to the observation window. There is also a problem that it cannot be made to act and it becomes difficult to remove water droplets and the like.
【００１０】本発明は以上の点に鑑みてなされたもので
あって、その目的とするところは、内視鏡観察視野を制
限することがないようにノズルを装着し、かつこのノズ
ルから少量の洗浄用流体を噴射させるだけで、内視鏡観
察手段を構成する観察窓の全体を迅速かつ確実に洗浄で
きるようにすることにある。The present invention has been made in view of the above points, and an object of the present invention is to mount a nozzle so as not to restrict the field of view of an endoscope and to remove a small amount of this nozzle from the nozzle. An object of the present invention is to make it possible to quickly and surely clean the entire observation window constituting the endoscope observation means simply by spraying a cleaning fluid.
【００１１】[0011]
【課題を解決するための手段】前述した目的を達成する
ために、本発明は、挿入部の先端硬質部に、その軸線に
対して前方側に立ち下がるように傾斜した第１の装着部
と、この第１の装着部の下端部の前方から立ち上がり、
頂部から前方に向けて下方に傾斜するように凸湾曲形状
とした第２の装着部を形成し、前記第１の装着部には少
なくとも照明窓と観察窓とを有する内視鏡観察手段を設
け、また前記第２の装着部には超音波トランスデューサ
を装着した超音波内視鏡であって、前記観察窓を洗浄す
るための洗浄用流体を噴射するノズルが前記第２の装着
部を含む位置に装着されており、このノズルには前記観
察窓表面に対して斜め前方から洗浄用流体を噴射する噴
射口が形成され、しかも前記ノズルは前記第２の装着部
の表面から突出しており、この突出高さ位置は、前記観
察窓による観察視野内であって、前記先端硬質部が映し
出される映像領域内に収まる範囲内とする構成としたこ
とをその特徴とするものである。In order to achieve the above-mentioned object, the present invention comprises a first mounting portion which is inclined at a distal end hard portion of an insertion portion so as to fall forward with respect to its axis. , Rising from the front of the lower end of the first mounting portion,
A second mounting portion having a convex curved shape is formed so as to incline downward from the top toward the front, and the first mounting portion is provided with endoscope observation means having at least an illumination window and an observation window. An ultrasonic endoscope having an ultrasonic transducer mounted on the second mounting portion, wherein a nozzle for injecting a cleaning fluid for cleaning the observation window includes the second mounting portion; The nozzle is formed with an ejection port for ejecting the cleaning fluid from the oblique front to the observation window surface, and the nozzle projects from the surface of the second attachment portion. The protruding height position is within an observation field of view by the observation window and within a range that fits within an image area where the hard tip portion is projected.
【００１２】超音波トランスデューサは先端硬質部の第
２の装着部に装着されるが、この超音波トランスデュー
サの装着領域は第２の装着部の全体に及ぶのではなく、
この第２の装着部において、第１の装着部への移行部分
には超音波トランスデューサが配置されていない領域が
ある。この移行部分は湾曲していても良いが、斜め上方
に立ち上がる傾斜平面として構成することもできる。い
ずれにしろ、ノズルはこの移行領域を含む位置に装着さ
れるから、第１の装着部に設けるより広い領域を使用す
ることができる。従って、観察窓全体を有効に洗浄でき
る大きさのノズルを装着できる。また、ノズルは第２の
装着部から突出しているので、観察窓の表面と平行な方
向ではなく、この観察窓表面に対して斜め前方から洗浄
水及び加圧エアを噴射することができる。その結果、少
量の洗浄用流体をもって観察窓をより迅速かつ確実に洗
浄することができる。また、洗浄水を噴射した時に、第
１の装着部と第２の装着部との間に洗浄水が溜ったとし
ても、加圧エアをノズルから噴射させることによって、
溜った洗浄水が円滑に除去される。The ultrasonic transducer is mounted on the second mounting portion of the hard distal end, but the mounting region of the ultrasonic transducer does not extend over the entire second mounting portion.
In the second mounting portion, there is a region where the ultrasonic transducer is not disposed at a transition portion to the first mounting portion. This transition portion may be curved, but may be configured as an inclined plane rising obliquely upward. In any case, since the nozzle is mounted at a position including the transition area, a wider area provided in the first mounting portion can be used. Therefore, a nozzle large enough to effectively wash the entire observation window can be mounted. Further, since the nozzle protrudes from the second mounting portion, the washing water and the pressurized air can be jetted obliquely from the front of the observation window surface, not in a direction parallel to the surface of the observation window. As a result, the observation window can be more quickly and reliably cleaned with a small amount of the cleaning fluid. Also, when the cleaning water is injected, even if the cleaning water is accumulated between the first mounting portion and the second mounting portion, by injecting the pressurized air from the nozzle,
The accumulated washing water is smoothly removed.
【００１３】ここで、第１の装着部には、内視鏡観察手
段を構成する照明窓及び観察窓に加えて、穿刺処置具を
導出させる処置具導出用開口を形成する構成としたもの
がある。この場合には、ノズルは処置具導出用開口の延
長部を避けた位置に配置することになる。ノズルは観察
窓が装着されている部位と超音波トランスデューサが設
けられている部位との間に配置され、具体的には第２の
装着部の立ち上がり部分、また第１の装着部から第２の
装着部への移行部が傾斜したまたは平坦な平面になって
いると、この平面部に装着することができる。また、こ
の位置から第１の装着部寄りで、一部分が第１の装着部
にかけた位置に配置させても良い。そして、噴射口はノ
ズルを装着した面から突出するように装着される。[0013] Here, the first mounting portion has a configuration in which a treatment tool lead-out opening for leading out a puncture treatment tool is formed in addition to an illumination window and an observation window constituting the endoscope observation means. is there. In this case, the nozzle is disposed at a position avoiding the extension of the treatment instrument outlet opening. The nozzle is disposed between a portion where the observation window is mounted and a portion where the ultrasonic transducer is provided, and specifically, a rising portion of the second mounting portion and a second portion from the first mounting portion. If the transition to the mounting part is an inclined or flat plane, it can be mounted on this flat part. In addition, a part of the first mounting portion may be arranged near the first mounting portion from this position. The injection port is mounted so as to protrude from the surface on which the nozzle is mounted.
【００１４】[0014]
【発明の実施の形態】以下、図面に基づいて本発明の実
施の一形態について説明する。まず、図１は超音波内視
鏡の全体構成を示す。図中において、１は超音波内視鏡
を示し、この超音波内視鏡１は、術者等が手で把持して
操作するための本体操作部２に体腔内への挿入部３を連
設したものであり、挿入部３は、その本体操作部２への
連設側から大半の長さ部分が挿入経路に沿って任意の方
向に曲がる軟性部３ａであって、この軟性部３ａにはア
ングル部３ｂが、さらにアングル部３ｂの先端には先端
硬質部３ｃが連設されている。さらに、本体操作部２の
挿入部３の延在方向とは反対方向に接眼部４が設けられ
ている。そして、本体操作部２からはユニバーサルコー
ド５が引き出されており、このユニバーサルコード５
は、図示は省略するが、少なくとも光源装置及び超音波
観測装置に着脱可能に接続される。An embodiment of the present invention will be described below with reference to the drawings. First, FIG. 1 shows an overall configuration of an ultrasonic endoscope. In the figure, reference numeral 1 denotes an ultrasonic endoscope, and the ultrasonic endoscope 1 has an insertion section 3 inserted into a body cavity connected to a main body operation section 2 for an operator or the like to grasp and operate by hand. The insertion portion 3 is a flexible portion 3a whose most part bends in an arbitrary direction along the insertion path from the side connected to the main body operation portion 2, and is inserted into the flexible portion 3a. Is provided with an angle portion 3b, and a distal end hard portion 3c is continuously provided at the distal end of the angle portion 3b. Further, an eyepiece 4 is provided in a direction opposite to a direction in which the insertion section 3 of the main body operation section 2 extends. The universal cord 5 is pulled out from the main body operation unit 2, and this universal cord 5
Although not shown, is connected to at least the light source device and the ultrasonic observation device in a detachable manner.
【００１５】図２に挿入部３の平面を、また図３にその
断面をそれぞれ示す。これらの図から明らかなように、
先端硬質部３ｃには、その外周面の途中位置から前方に
向けて斜め下方に立ち下がる斜面部からなる第１の装着
部Ｓが形成されており、この第１の装着部Ｓの前方には
凸湾曲状となった第２の装着部Ｃが形成されている。こ
こで、第２の装着部Ｃは、第１の装着部Ｓの下端部から
直接立ち上がるようにしても良いが、本実施の形態で
は、その間の移行部として、斜め上方に立ち上がる傾斜
平面の部分を有するものとしている。FIG. 2 shows a plane view of the insertion portion 3, and FIG. 3 shows a cross section thereof. As evident from these figures,
The first hard portion 3c is formed with a first mounting portion S formed of a slope portion that falls obliquely downward from an intermediate position on the outer peripheral surface toward the front, and in front of the first mounting portion S. A second mounting portion C having a convex curved shape is formed. Here, the second mounting portion C may rise directly from the lower end of the first mounting portion S, but in the present embodiment, a portion of an inclined plane rising obliquely upward as a transition portion therebetween. It is assumed to have.
【００１６】先端硬質部３ｃにおける第１の装着部Ｓに
は内視鏡観察手段１０が設けられ、第２の装着部Ｃの位
置には、その頂部を含む前後の位置に超音波検査手段１
１が形成される。第１の装着部Ｓに装着した内視鏡観察
手段１０は、観察窓１２と、この観察窓１２の左右両側
に設けた照明窓１３，１３とから構成される。図３に示
したように、観察窓１２からの観察視野の中心線Ａ1
は、挿入部３の中心軸線Ａ2 に対して所定角度だけ傾い
た斜視型となる。また、この観察窓１２による観察視野
範囲はＷという広角のものであり、挿入部３の軸線の延
長線方向も視野に入れることができるようになる。An endoscope observation means 10 is provided at the first mounting portion S of the hard distal end portion 3c, and the ultrasonic inspection means 1 is located at the position of the second mounting portion C before and after including the top.
1 is formed. The endoscope observation means 10 mounted on the first mounting portion S includes an observation window 12 and illumination windows 13 provided on both left and right sides of the observation window 12. As shown in FIG. 3, the center line A 1 of the observation field of view from the observation window 12.
Is a predetermined angle inclined perspective type with respect to the central axis A 2 of the insertion portion 3. The observation field of view by the observation window 12 is a wide-angle W, and the extension of the axis of the insertion section 3 can be included in the field of view.
【００１７】観察窓１２には、対物レンズ１４が設けら
れるが、この対物レンズ１４の結像位置には光ファイバ
束からなるイメージガイド１５の入射端が配置される。
イメージガイド１５は、挿入部３から本体操作部２を経
て接眼部４にまで延在されている。なお、挿入部内の対
物レンズ１４の配設位置近傍にスペース的な余裕があれ
ば、このイメージガイドに代えて、対物レンズの結像位
置に固体撮像素子を配置した、所謂電子内視鏡として構
成することもできる。An objective lens 14 is provided in the observation window 12, and an incident end of an image guide 15 composed of an optical fiber bundle is arranged at an image forming position of the objective lens 14.
The image guide 15 extends from the insertion section 3 to the eyepiece section 4 via the main body operation section 2. If there is a space margin near the position where the objective lens 14 is provided in the insertion portion, instead of this image guide, a so-called electronic endoscope in which a solid-state imaging device is disposed at an image forming position of the objective lens. You can also.
【００１８】また、照明窓１３には、照明用レンズが設
けられ、この照明用レンズには光ファイバ束からなるラ
イトガイド（図示せず）の出射端が臨み、このライトガ
イドの他端は本体操作部２を経てユニバーサルコード５
内に挿通されている。このユニバーサルコード５を光源
装置に接続すると、光源装置からの照明光がライトガイ
ドにより照明窓１３にまで伝送されて、この照明窓１３
から体内に向けて照明光が照射されることになる。The illumination window 13 is provided with an illumination lens. The illumination lens faces the exit end of a light guide (not shown) composed of an optical fiber bundle, and the other end of the light guide is connected to the main body. Universal code 5 via operation unit 2
It is inserted inside. When the universal cord 5 is connected to the light source device, illumination light from the light source device is transmitted to the illumination window 13 by the light guide, and the illumination window 13
The illumination light is emitted from the body toward the body.
【００１９】超音波検査手段１１は、先端硬質部３ｃに
形成した第２の装着部Ｃに装着されており、この第２の
装着部Ｃは内視鏡観察手段１０を装着した第１の装着部
Ｓより先端側に位置している。超音波検査手段１１は超
音波トランスデューサ１６を有するものである。超音波
トランスデューサ１６は多数の超音波振動子１７を挿入
部３の軸線方向に向けて多数並べる構成としたものであ
る。そして、超音波トランスデューサ１６は、第２の装
着部Ｃにおいて、その頂部を含む前後に配置されてお
り、超音波走査範囲は扇形となった、所謂電子コンベッ
クス走査が行われる。The ultrasonic inspection means 11 is mounted on a second mounting portion C formed on the hard distal end portion 3c, and the second mounting portion C is a first mounting portion on which the endoscope observation means 10 is mounted. It is located on the tip side from the part S. The ultrasonic inspection means 11 has an ultrasonic transducer 16. The ultrasonic transducer 16 has a configuration in which a large number of ultrasonic transducers 17 are arranged in the axial direction of the insertion section 3. The ultrasonic transducers 16 are arranged before and after the second mounting portion C including the top thereof, and so-called electronic convex scanning in which the ultrasonic scanning range is fan-shaped is performed.
【００２０】先端硬質部３ｃには、内視鏡観察手段１０
と超音波検査手段１１との間の位置に処置具を導出させ
るための処置具導出口１８が開口している。この処置具
導出口１８は、その大半が第１の装着部Ｓに開口してお
り、この処置具導出口１８の前方位置には、処置具を所
定の角度状態にして導出させるための処置具案内溝１９
が形成されている。このために、処置具案内溝１９は、
内視鏡観察手段１０を設けた部位と超音波検査手段１１
を設けた部位との間の移行部をに設けられている。先端
硬質部３ｃにおけるこの部分を傾斜平面としたのは、電
子コンベックス走査を行うために超音波振動子１７を凸
湾曲形状に配列しなければならない超音波トランスデュ
ーサ１６が装着されておらず、必ずしも湾曲させる必要
がないからである。ただし、この移行部分には、必ずし
も平面部を設ける必要はなく、第１の装着部Ｓから直接
凸湾曲形状に立ち上がらせても良い。An endoscope observation means 10 is provided at the distal end hard portion 3c.
A treatment instrument lead-out port 18 for leading the treatment instrument to a position between the medical instrument and the ultrasonic inspection means 11 is open. Most of the treatment tool outlet port 18 is open to the first mounting portion S, and a treatment tool for leading the treatment tool into a predetermined angle state at a position in front of the treatment tool outlet port 18. Guide groove 19
Are formed. For this reason, the treatment tool guide groove 19
The part provided with the endoscope observation means 10 and the ultrasonic inspection means 11
A transition portion between the portion provided with is provided. The reason why this portion of the distal end hard portion 3c is formed as an inclined plane is that the ultrasonic transducers 16, which must arrange the ultrasonic transducers 17 in a convexly curved shape in order to perform electronic convex scanning, are not mounted, and are not necessarily curved. This is because there is no need to make them. However, it is not always necessary to provide a plane portion in this transition portion, and the transition portion may directly rise from the first mounting portion S into a convex curved shape.
【００２１】そして、処置具導出口１８には処置具挿通
パイプ２０，可撓性のあるチューブ材からなる処置具挿
通チャンネル２１が順次接続されており、処置具は処置
具挿通チャンネル２１から処置具挿通パイプ２０を経て
処置具導出口１８から突出することになる。処置具案内
溝１９は、処置具を第２の装着部Ｃの立ち上がり角度よ
り大きな角度で、つまり超音波トランスデューサ１６の
斜め上方に向けて突出させるように案内するためのもの
である。A treatment tool insertion pipe 20 and a treatment tool insertion channel 21 made of a flexible tube are sequentially connected to the treatment tool outlet port 18. The treatment tool is moved from the treatment tool insertion channel 21 to the treatment tool. It protrudes from the treatment instrument outlet 18 through the insertion pipe 20. The treatment tool guide groove 19 is for guiding the treatment tool so as to protrude obliquely upward from the ultrasonic transducer 16 at an angle larger than the rising angle of the second mounting portion C.
【００２２】処置具導出口１８から突出される処置具と
しては、鉗子や高周波処置具等のように、体腔内で作動
し、内視鏡観察手段１０による観察下で操作されるもの
があるが、穿刺処置具のように、体内に刺し込まれる関
係から、超音波検査手段１１による観察下で操作される
ものもある。従って、処置具は、処置具導出口１８から
内視鏡観察手段１０による観察視野の前方位置に向けて
突出するものであり、しかも処置具導出口１８から所定
長さ突出すると、超音波検査手段１１による観測視野内
に入ることになる。As treatment tools protruding from the treatment tool outlet port 18, there are, for example, forceps, high-frequency treatment instruments, etc., which operate in the body cavity and are operated under observation by the endoscope observation means 10. There is also a device such as a puncture treatment tool that is operated under observation by the ultrasonic inspection means 11 because of its puncture into the body. Therefore, the treatment tool projects from the treatment tool outlet port 18 toward the front position of the observation field of view by the endoscope observation means 10, and when the treatment tool projects from the treatment tool outlet port 18 by a predetermined length, the ultrasonic inspection means 11 will be within the field of view.
【００２３】内視鏡観察手段１０における観察窓１２は
常に清浄な状態となし、体液等の汚損物が付着した時に
は、挿入部３を体外に取り出すことなく、汚損物等を洗
い落とすようにする必要がある。このために、観察窓１
２に向けてノズル２２が装着されており、このノズル２
２には挿入部３内に設けた洗浄用流体供給路（図示せ
ず）が接続されている。観察窓１２を洗浄する洗浄用流
体としては、通常、洗浄水と加圧エアとが用いられる。
洗浄水は観察窓１２に付着した汚損物を洗い流すための
ものであり、加圧エアは汚損物を洗い流した後に、この
観察窓１２に付着している水滴等を吹き飛ばすようにし
て除去するためのものである。従って、観察窓１２が汚
れた時には、まず洗浄水がノズル２２の噴射口２２ａ
（図４参照）から噴射され、次いで加圧エアが噴射され
る。The observation window 12 of the endoscope observation means 10 is always kept in a clean state. When contaminants such as body fluids adhere, it is necessary to wash the contaminants without removing the insertion portion 3 from the body. There is. For this, the observation window 1
The nozzle 22 is attached to the nozzle 2
A cleaning fluid supply path (not shown) provided in the insertion section 3 is connected to 2. As a cleaning fluid for cleaning the observation window 12, cleaning water and pressurized air are usually used.
The washing water is for washing off the contaminants adhering to the observation window 12, and the pressurized air is for washing off the contaminants and then removing the water droplets and the like adhering to the observation window 12 by blowing them off. Things. Therefore, when the observation window 12 becomes dirty, first, the washing water is supplied to the injection port 22 a of the nozzle 22.
(See FIG. 4), and then pressurized air is injected.
【００２４】ノズル２２は、内視鏡観察手段１０を構成
する観察窓１２等が設けられる第１の装着部Ｓと、超音
波観測機構部１１を構成する超音波トランスデューサ１
６が装着されている第２の装着部Ｃにおける基端側の傾
斜平面部Ｐの位置に装着されている。ここで、傾斜平面
部Ｐには、処置具導出口１８からの処置具案内溝１９が
設けられており、処置具導出口１８は、観察窓１２の直
下位置に開口している。従って、ノズル２２は処置具案
内溝１９の左右いずれかの位置に配置され、図２に示し
たように、観察窓１２に対しては斜め横方向から洗浄用
流体が噴射されることになる。しかも、図４に示したよ
うに、ノズル２２の噴射口２２ａは観察窓１２に対して
斜め下方に位置しており、この噴射口２２ａからは観察
窓１２に対して角度α方向から洗浄用流体が噴射される
ことになる。The nozzle 22 includes a first mounting portion S provided with an observation window 12 and the like constituting the endoscope observation means 10 and an ultrasonic transducer 1 constituting the ultrasonic observation mechanism 11.
6 is mounted at the position of the inclined plane portion P on the base end side of the second mounting portion C on which the second mounting portion 6 is mounted. Here, a treatment tool guide groove 19 from a treatment tool outlet 18 is provided in the inclined plane portion P, and the treatment tool outlet 18 is opened at a position directly below the observation window 12. Accordingly, the nozzle 22 is disposed at one of the left and right positions of the treatment tool guide groove 19, and the cleaning fluid is jetted obliquely to the observation window 12 as shown in FIG. In addition, as shown in FIG. 4, the injection port 22a of the nozzle 22 is positioned obliquely downward with respect to the observation window 12, and from this injection port 22a, the cleaning fluid from the angle α direction with respect to the observation window 12. Will be injected.
【００２５】このように、ノズル２２は内視鏡観察手段
１０が設けられる第１の装着部Ｓ及び第２の装着部Ｃの
うちの超音波検査手段１１の装着部ではなく、処置具を
案内するために、第２の装着部Ｃの傾斜平面部Ｐに設け
られており、この傾斜平面部Ｐにはその概略中央部に処
置具案内溝１９が設けられるだけで、その左右両側部に
は格別の部材が装着されていない。従って、このデッド
スペースをノズル２２の装着部として利用していること
から、ノズル２２は他の部材と干渉することがなく、観
察窓１２を効率的に洗浄できる大きさとなし、また噴射
口２２ａの開口幅を広く取ることができる。しかも、ノ
ズル２２の噴射口２２ａは観察窓１２の表面に対して概
略平行な方向ではなく、斜め前方から噴射されるので、
その噴射圧を観察窓１２に有効に作用させることがで
き、洗浄水の噴射による汚損物の除去及び加圧エアの噴
射による洗浄水の水滴等を吹き飛ばす作業を効率的に行
えることになる。従って、少量の洗浄用流体を噴射させ
るだけで、容易に、しかも迅速かつ確実に観察窓１２の
洗浄を行うことができる。As described above, the nozzle 22 guides the treatment tool, not the mounting part of the ultrasonic inspection means 11 among the first mounting part S and the second mounting part C in which the endoscope observation means 10 is provided. For this purpose, the second mounting part C is provided on the inclined plane part P, and the inclined plane part P is provided only with the treatment tool guide groove 19 at the approximate center thereof, and on the left and right side parts thereof. No special members are attached. Therefore, since this dead space is used as a mounting portion for the nozzle 22, the nozzle 22 does not interfere with other members, and is not large enough to clean the observation window 12 efficiently. The opening width can be widened. In addition, since the ejection port 22a of the nozzle 22 is ejected not obliquely forward but in a direction substantially parallel to the surface of the observation window 12,
The jet pressure can be effectively applied to the observation window 12, and the operation of removing contaminants by jetting the cleaning water and blowing out the water droplets of the cleaning water by jetting the pressurized air can be efficiently performed. Therefore, the observation window 12 can be easily, quickly, and reliably cleaned only by spraying a small amount of the cleaning fluid.
【００２６】以上のように、ノズル２２を傾斜平面部Ｐ
から突出させると、特に観察窓１２に洗浄用流体を有効
に作用させることができる程度にまで突出させると、観
察窓１２から得られる前方視野を妨げることになる。し
かしながら、観察窓１２は先端硬質部３ｃの外周面から
切り込まれた第１の装着部Ｓに配置されており、その前
方位置の超音波トランスデューサ１６を設けた部分は凸
湾曲形状に突出した第２の装着部Ｃとなっているので、
元々観察視野はこの第２の装着部Ｃにより制約される。
傾斜平面部Ｐは観察窓１２の装着部より低い位置から立
ち上がっているから、ノズル２２を第２の装着部Ｃの頂
部より低い位置に配置することは可能である。従って、
図５に示したように、観察窓１２からの観察視野に第２
の装着部Ｃが位置する部分、つまり観察窓１２からの視
野中に先端硬質部３ｃが映し出される範囲内にノズル２
２の像が映し出される高さだけ突出させており、その結
果、ノズル２２が観察窓１２における観察視野を制約す
ることはない。As described above, the nozzle 22 is connected to the inclined plane P
When the projection is made to protrude to the extent that the cleaning fluid can effectively act on the observation window 12, the forward view obtained from the observation window 12 is obstructed. However, the observation window 12 is arranged on the first mounting portion S cut from the outer peripheral surface of the distal end hard portion 3c, and the portion provided with the ultrasonic transducer 16 at the front position thereof has a convex curved shape. Since it is the mounting part C of 2,
The observation field of view is originally restricted by the second mounting portion C.
Since the inclined plane portion P rises from a position lower than the mounting portion of the observation window 12, it is possible to arrange the nozzle 22 at a position lower than the top of the second mounting portion C. Therefore,
As shown in FIG. 5, the observation field of view from the observation window 12 is
The nozzle 2 is positioned within a portion where the mounting portion C is located, i.e., in a range where the distal end hard portion 3c is projected in the visual field from the observation window 12.
2 is projected by the height at which the second image is projected. As a result, the nozzle 22 does not restrict the observation field of view in the observation window 12.
【００２７】また、このノズル２２は第１の装着部Ｓの
上端部と、第２の装着部Ｃの頂部とを結ぶ面の内側に配
置されており、しかも噴射口２２ａは観察窓１２方向を
向いている。従って、挿入部３を体内に挿入する際に、
ノズル２２が体腔内壁に引っかかるおそれはない。特
に、ノズル２２の挿入部３の挿入方向における先端側に
向く面を曲面形状とすることによって、たとえ体腔内壁
にノズル２２が当接したとしても、この体腔内壁を損傷
させる等のおそれはない。The nozzle 22 is disposed inside a surface connecting the upper end of the first mounting portion S and the top of the second mounting portion C, and the injection port 22a is directed in the direction of the observation window 12. It is suitable. Therefore, when inserting the insertion portion 3 into the body,
There is no possibility that the nozzle 22 is caught on the inner wall of the body cavity. In particular, by forming the surface of the nozzle 22 facing the distal end side in the insertion direction of the insertion portion 3 into a curved shape, even if the nozzle 22 contacts the inner wall of the body cavity, there is no risk of damaging the inner wall of the body cavity.
【００２８】前述した実施の形態では、ノズルは傾斜平
面部において、処置具案内溝を避けるように、観察窓に
対して斜め方向から洗浄用流体を噴射させるようにした
ものとしたが、処置具導出口が設けられていない場合、
または観察窓の直下位置に処置具導出口が設けられてい
ない場合には、ノズルは観察窓の直下位置に配置するこ
とができる。さらに、図６に示したように、ノズル１２
２を第１の装着部Ｓ及びその内側を含み、観察窓１１２
の下部位置から第２の装着部Ｃにおける傾斜平面部Ｐへ
の移行部において、この傾斜平面部Ｐから突出するよう
に設けても良い。そして、ノズル１２２内の通路は洗浄
用流体を挿入部１０３の軸線方向から方向転換して、観
察窓１１２の表面に対して斜め前方から洗浄用流体を噴
射させるように構成することもできる。In the above-described embodiment, the nozzle is configured to eject the cleaning fluid obliquely to the observation window so as to avoid the treatment tool guide groove in the inclined plane portion. If there is no outlet,
Alternatively, when the treatment instrument outlet is not provided at a position directly below the observation window, the nozzle can be arranged at a position immediately below the observation window. Further, as shown in FIG.
2 includes the first mounting portion S and the inside thereof, and the observation window 112
May be provided so as to protrude from the inclined plane portion P at the transition from the lower position to the inclined plane portion P in the second mounting portion C. The passage in the nozzle 122 may be configured to change the direction of the cleaning fluid from the axial direction of the insertion portion 103 and eject the cleaning fluid from the oblique front to the surface of the observation window 112.
【００２９】[0029]
【発明の効果】本発明は、以上のように、内視鏡観察手
段を設けた斜面部からなる第１の装着部の前方に位置す
る第２の装着部を含む位置に設ける構成としたので、内
視鏡観察視野を制限することがないようにノズルを装着
し、かつこのノズルから少量の洗浄用流体を噴射させる
だけで、内視鏡観察手段を構成する観察窓の全体を迅速
かつ確実に洗浄できる等の効果を奏する。As described above, according to the present invention, the endoscope observation means is provided at a position including the second mounting portion located in front of the first mounting portion formed of the inclined surface portion. By installing a nozzle so as not to limit the field of view of the endoscope and spraying a small amount of cleaning fluid from this nozzle, the entire observation window constituting the endoscope observation means can be quickly and reliably secured. It has the effect of being able to be washed.
【図１】本発明の実施の一形態を示す超音波内視鏡の全
体構成図である。FIG. 1 is an overall configuration diagram of an ultrasonic endoscope showing an embodiment of the present invention.
【図２】挿入部の先端部分の平面図である。FIG. 2 is a plan view of a distal end portion of an insertion section.
【図３】挿入部の先端部分の縦断面図である。FIG. 3 is a longitudinal sectional view of a distal end portion of an insertion portion.
【図４】ノズルの装着部を示す構成説明図である。FIG. 4 is a configuration explanatory view showing a mounting portion of a nozzle.
【図５】内視鏡観察手段を構成する観察窓の視野を示す
説明図である。FIG. 5 is an explanatory diagram showing a field of view of an observation window constituting an endoscope observation means.
【図６】本発明の他の実施の形態を示すノズルの装着部
の構成説明図である。FIG. 6 is a configuration explanatory view of a nozzle mounting portion according to another embodiment of the present invention.
１ 超音波内視鏡 ３，１０３ 挿入部 ３ｃ 先端硬質部 １０ 内視鏡観察手段 １１ 超音波検査手段 １２，１１２ 観察窓 １３ 照明窓 １６ 超音波トランスデューサ １８ 処置具導出口 ２２，１２２ ノズル ２２ａ，１２２ａ 噴射口 Ｓ 第１の装着部 Ｃ 第２の装着部 Ｐ 傾斜平面部 DESCRIPTION OF SYMBOLS 1 Ultrasonic endoscope 3,103 Insertion part 3c Tip hard part 10 Endoscope observation means 11 Ultrasonic inspection means 12,112 Observation window 13 Illumination window 16 Ultrasonic transducer 18 Treatment tool outlet 22,22 Nozzle 22a, 122a Injection port S First mounting part C Second mounting part P Inclined flat part
Claims (4)
て前方側に立ち下がるように傾斜した斜面部からなる第
１の装着部と、この第１の装着部の下端部の前方から立
ち上がり、頂部から前方に向けて下方に傾斜するように
凸湾曲形状とした湾曲面を含む第２の装着部とを形成
し、前記第１の装着部には少なくとも照明窓と観察窓と
を有する内視鏡観察手段を設け、また前記第２の装着部
には超音波トランスデューサを装着した超音波内視鏡に
おいて、 前記観察窓を洗浄するための洗浄用流体を噴射するノズ
ルが前記第２の装着部を含む位置に装着されており、 このノズルには前記観察窓表面に対して斜め前方から洗
浄用流体を噴射する噴射口が形成され、 しかも前記ノズルは前記第２の装着部の表面から突出し
ており、この突出高さ位置は、前記観察窓による観察視
野内であって、前記先端硬質部が映し出される映像領域
内に収まる範囲内とする構成としたことを特徴とする超
音波内視鏡。1. A first mounting portion comprising a slope portion inclined so as to fall forward with respect to an axis thereof on a distal end hard portion of an insertion portion, and a first mounting portion formed from a front of a lower end portion of the first mounting portion. A second mounting portion including a curved surface having a convexly curved shape so as to rise and incline downward from the top toward the front; and the first mounting portion has at least an illumination window and an observation window. An ultrasonic endoscope provided with an endoscope observation means, and an ultrasonic transducer mounted on the second mounting portion, wherein a nozzle for injecting a cleaning fluid for cleaning the observation window is provided in the second mounting portion. The nozzle is provided at a position including the mounting portion, and the nozzle is formed with an injection port for injecting a cleaning fluid from an oblique front with respect to the observation window surface, and the nozzle is provided from the surface of the second mounting portion. It protrudes and this protruding height position is An ultrasonic endoscope which is configured to be within an observation field of view of the observation window and within a video area where the hard distal end portion is projected.
させる処置具導出用開口が形成されており、前記ノズル
はこの処置具導出用開口の延長部を避けた位置に配置す
る構成としたことを特徴とする請求項１記載の超音波内
視鏡。2. A treatment tool lead-out opening for leading out a puncture treatment tool is formed in the first mounting portion, and the nozzle is arranged at a position avoiding an extension of the treatment tool lead-out opening. The ultrasonic endoscope according to claim 1, wherein:
表面から突出する状態に装着する構成としたことを特徴
とする請求項１記載の超音波内視鏡。3. The ultrasonic endoscope according to claim 1, wherein the nozzle is mounted on the second mounting portion so as to protrude from a surface of the second mounting portion.
２の装着部との移行部を含む位置に配置され、第２の装
着部の表面から突出させて設ける構成としたことを特徴
とする請求項１記載の超音波内視鏡。4. The nozzle according to claim 1, wherein the nozzle is disposed at a position including a transition portion between the first mounting portion and the second mounting portion, and is provided so as to protrude from a surface of the second mounting portion. The ultrasonic endoscope according to claim 1, wherein
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001044587A JP3890900B2 (en) | 2001-02-21 | 2001-02-21 | Ultrasound endoscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001044587A JP3890900B2 (en) | 2001-02-21 | 2001-02-21 | Ultrasound endoscope |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2002238906A true JP2002238906A (en) | 2002-08-27 |
| JP3890900B2 JP3890900B2 (en) | 2007-03-07 |
Family
ID=18906555
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001044587A Expired - Fee Related JP3890900B2 (en) | 2001-02-21 | 2001-02-21 | Ultrasound endoscope |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3890900B2 (en) |
Cited By (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005014529B4 (en) * | 2004-03-31 | 2007-10-25 | Fujinon Corp. | ultrasound endoscope |
| US7318806B2 (en) | 2002-10-18 | 2008-01-15 | Fujinon Corporation | Ultrasound endoscope |
| JP2008049157A (en) * | 2006-08-28 | 2008-03-06 | Olympus Medical Systems Corp | Ultrasonic endoscope, balloon catheter to be placed at fistula, magnetic indwelling implement for coupling magnet with other magnet through wall of body tissue, and magnet set to be coupled with other magnet through wall of body tissue |
| JP2010213928A (en) * | 2009-03-17 | 2010-09-30 | Olympus Medical Systems Corp | Ultrasonic endoscope |
| US7976501B2 (en) | 2007-12-07 | 2011-07-12 | Ethicon Endo-Surgery, Inc. | Trocar seal with reduced contact area |
| US7981092B2 (en) | 2008-05-08 | 2011-07-19 | Ethicon Endo-Surgery, Inc. | Vibratory trocar |
| JP2011177597A (en) * | 2011-06-24 | 2011-09-15 | Fujifilm Corp | Ultrasonic endoscope |
| US8100929B2 (en) | 2007-06-29 | 2012-01-24 | Ethicon Endo-Surgery, Inc. | Duckbill seal with fluid drainage feature |
| US8273060B2 (en) | 2008-04-28 | 2012-09-25 | Ethicon Endo-Surgery, Inc. | Fluid removal in a surgical access device |
| US8419624B2 (en) | 2009-10-12 | 2013-04-16 | Endoguard Limited | Flow guide |
| US8568362B2 (en) | 2008-04-28 | 2013-10-29 | Ethicon Endo-Surgery, Inc. | Surgical access device with sorbents |
| US8579807B2 (en) | 2008-04-28 | 2013-11-12 | Ethicon Endo-Surgery, Inc. | Absorbing fluids in a surgical access device |
| US8636686B2 (en) | 2008-04-28 | 2014-01-28 | Ethicon Endo-Surgery, Inc. | Surgical access device |
| USD700326S1 (en) | 2008-04-28 | 2014-02-25 | Ethicon Endo-Surgery, Inc. | Trocar housing |
| US8690831B2 (en) | 2008-04-25 | 2014-04-08 | Ethicon Endo-Surgery, Inc. | Gas jet fluid removal in a trocar |
| US8758251B2 (en) | 2006-02-16 | 2014-06-24 | Fujifilm Corporation | Ultrasound endoscope |
| US8870747B2 (en) | 2008-04-28 | 2014-10-28 | Ethicon Endo-Surgery, Inc. | Scraping fluid removal in a surgical access device |
| US9358041B2 (en) | 2008-04-28 | 2016-06-07 | Ethicon Endo-Surgery, Llc | Wicking fluid management in a surgical access device |
| JP6165396B1 (en) * | 2016-01-18 | 2017-07-19 | オリンパス株式会社 | Endoscope |
| WO2017126196A1 (en) * | 2016-01-18 | 2017-07-27 | オリンパス株式会社 | Endoscope |
| CN112672674A (en) * | 2018-09-10 | 2021-04-16 | 富士胶片株式会社 | Endoscope with a detachable handle |
| US11235111B2 (en) | 2008-04-28 | 2022-02-01 | Ethicon Llc | Surgical access device |
| JP2022075891A (en) * | 2016-05-23 | 2022-05-18 | エンドチョイス インコーポレイテッド | Device for controlling flow direction of fluid, and method of operating the device |
| CN114533131A (en) * | 2017-03-31 | 2022-05-27 | 富士胶片株式会社 | Ultrasonic endoscope |
-
2001
- 2001-02-21 JP JP2001044587A patent/JP3890900B2/en not_active Expired - Fee Related
Cited By (41)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7318806B2 (en) | 2002-10-18 | 2008-01-15 | Fujinon Corporation | Ultrasound endoscope |
| DE10348188B4 (en) * | 2002-10-18 | 2009-10-15 | Fujinon Corp. | An ultrasonic endoscope |
| US7946993B2 (en) | 2004-03-31 | 2011-05-24 | Fujinon Corporation | Ultrasonic endoscope |
| DE102005014529B4 (en) * | 2004-03-31 | 2007-10-25 | Fujinon Corp. | ultrasound endoscope |
| US8758251B2 (en) | 2006-02-16 | 2014-06-24 | Fujifilm Corporation | Ultrasound endoscope |
| JP2008049157A (en) * | 2006-08-28 | 2008-03-06 | Olympus Medical Systems Corp | Ultrasonic endoscope, balloon catheter to be placed at fistula, magnetic indwelling implement for coupling magnet with other magnet through wall of body tissue, and magnet set to be coupled with other magnet through wall of body tissue |
| US8876699B2 (en) | 2006-08-28 | 2014-11-04 | Olympus Medical Systems Corp. | Fistulectomy method of forming a fistula between a first duct and a second duct |
| US8771307B2 (en) | 2007-06-29 | 2014-07-08 | Ethicon Endo-Surgery, Inc. | Duckbill seal with fluid drainage feature |
| US8100929B2 (en) | 2007-06-29 | 2012-01-24 | Ethicon Endo-Surgery, Inc. | Duckbill seal with fluid drainage feature |
| US8672890B2 (en) | 2007-12-07 | 2014-03-18 | Ethicon Endo-Surgery, Inc. | Trocar seal with reduced contact area |
| US7976501B2 (en) | 2007-12-07 | 2011-07-12 | Ethicon Endo-Surgery, Inc. | Trocar seal with reduced contact area |
| US8690831B2 (en) | 2008-04-25 | 2014-04-08 | Ethicon Endo-Surgery, Inc. | Gas jet fluid removal in a trocar |
| US8870747B2 (en) | 2008-04-28 | 2014-10-28 | Ethicon Endo-Surgery, Inc. | Scraping fluid removal in a surgical access device |
| USD736926S1 (en) | 2008-04-28 | 2015-08-18 | Ethicon Endo-Sugery, Inc. | Trocar housing |
| US8636686B2 (en) | 2008-04-28 | 2014-01-28 | Ethicon Endo-Surgery, Inc. | Surgical access device |
| USD700326S1 (en) | 2008-04-28 | 2014-02-25 | Ethicon Endo-Surgery, Inc. | Trocar housing |
| US8568362B2 (en) | 2008-04-28 | 2013-10-29 | Ethicon Endo-Surgery, Inc. | Surgical access device with sorbents |
| US11235111B2 (en) | 2008-04-28 | 2022-02-01 | Ethicon Llc | Surgical access device |
| US8273060B2 (en) | 2008-04-28 | 2012-09-25 | Ethicon Endo-Surgery, Inc. | Fluid removal in a surgical access device |
| US9827383B2 (en) | 2008-04-28 | 2017-11-28 | Ethicon Llc | Surgical access device |
| US8579807B2 (en) | 2008-04-28 | 2013-11-12 | Ethicon Endo-Surgery, Inc. | Absorbing fluids in a surgical access device |
| US9358041B2 (en) | 2008-04-28 | 2016-06-07 | Ethicon Endo-Surgery, Llc | Wicking fluid management in a surgical access device |
| US9033929B2 (en) | 2008-04-28 | 2015-05-19 | Ethicon Endo-Surgery, Inc. | Fluid removal in a surgical access device |
| USD735852S1 (en) | 2008-04-28 | 2015-08-04 | Ethicon Endo-Surgery, Inc. | Fluid remover |
| US7981092B2 (en) | 2008-05-08 | 2011-07-19 | Ethicon Endo-Surgery, Inc. | Vibratory trocar |
| JP2010213928A (en) * | 2009-03-17 | 2010-09-30 | Olympus Medical Systems Corp | Ultrasonic endoscope |
| USRE46977E1 (en) | 2009-10-12 | 2018-08-07 | Endoguard Limited | Flow guide |
| USRE46062E1 (en) | 2009-10-12 | 2016-07-12 | Endoguard Limited | Flow guide |
| US8419624B2 (en) | 2009-10-12 | 2013-04-16 | Endoguard Limited | Flow guide |
| JP2011177597A (en) * | 2011-06-24 | 2011-09-15 | Fujifilm Corp | Ultrasonic endoscope |
| US11042020B2 (en) | 2016-01-18 | 2021-06-22 | Olympus Corporation | Endoscope having observation window with circumferential side surface and cleaning nozzles directed to circumferential side surface |
| CN107529946A (en) * | 2016-01-18 | 2018-01-02 | 奥林巴斯株式会社 | Endoscope |
| WO2017126196A1 (en) * | 2016-01-18 | 2017-07-27 | オリンパス株式会社 | Endoscope |
| JP6165396B1 (en) * | 2016-01-18 | 2017-07-19 | オリンパス株式会社 | Endoscope |
| JP2022075891A (en) * | 2016-05-23 | 2022-05-18 | エンドチョイス インコーポレイテッド | Device for controlling flow direction of fluid, and method of operating the device |
| JP7449970B2 (en) | 2016-05-23 | 2024-03-14 | エンドチョイス インコーポレイテッド | Device for controlling fluid flow direction and method of operating the device |
| CN114533131A (en) * | 2017-03-31 | 2022-05-27 | 富士胶片株式会社 | Ultrasonic endoscope |
| CN114533130A (en) * | 2017-03-31 | 2022-05-27 | 富士胶片株式会社 | Ultrasonic endoscope |
| US11986343B2 (en) | 2017-03-31 | 2024-05-21 | Fujifilm Corporation | Ultrasonic endoscope |
| CN112672674A (en) * | 2018-09-10 | 2021-04-16 | 富士胶片株式会社 | Endoscope with a detachable handle |
| CN112672674B (en) * | 2018-09-10 | 2023-11-14 | 富士胶片株式会社 | Endoscope with a lens |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3890900B2 (en) | 2007-03-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3890900B2 (en) | Ultrasound endoscope | |
| JP5261518B2 (en) | Endoscope | |
| JP5331840B2 (en) | Endoscope | |
| CN108498120B (en) | Endoscope with a detachable handle | |
| JP6723942B2 (en) | Endoscope | |
| JP2011120863A (en) | Endoscope | |
| JP5172469B2 (en) | Endoscope | |
| JP6050221B2 (en) | Endoscope | |
| JP5665650B2 (en) | Endoscope | |
| JP3849218B2 (en) | Endoscope hood | |
| JP6091219B2 (en) | Endoscope device | |
| JP2012254137A (en) | Endoscope | |
| JP7216226B2 (en) | Endoscope | |
| JPH0819512A (en) | Endoscope | |
| JP3989742B2 (en) | Endoscope with sub-water supply function | |
| JP6151195B2 (en) | Endoscope | |
| JP3776812B2 (en) | Endoscope device | |
| JP2010000186A (en) | Endoscope | |
| JP3742635B2 (en) | Endoscope device | |
| JP6151196B2 (en) | Endoscope | |
| JP2013233451A (en) | Endoscope | |
| JP2012183262A (en) | Endoscope | |
| JPH09201332A (en) | Endoscope | |
| JP2002085349A (en) | Endoscope apparatus | |
| JP2001321323A (en) | Endoscope |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20041222 |
|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20061023 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20061114 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20061127 |
|
| R150 | Certificate of patent or registration of utility model |
Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313113 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20091215 Year of fee payment: 3 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20101215 Year of fee payment: 4 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20101215 Year of fee payment: 4 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20111215 Year of fee payment: 5 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20111215 Year of fee payment: 5 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20121215 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20121215 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20131215 Year of fee payment: 7 |
|
| LAPS | Cancellation because of no payment of annual fees |