JP2007135949A - Distal end of ultrasonic endoscope - Google Patents

Distal end of ultrasonic endoscope Download PDF

Info

Publication number
JP2007135949A
JP2007135949A JP2005335231A JP2005335231A JP2007135949A JP 2007135949 A JP2007135949 A JP 2007135949A JP 2005335231 A JP2005335231 A JP 2005335231A JP 2005335231 A JP2005335231 A JP 2005335231A JP 2007135949 A JP2007135949 A JP 2007135949A
Authority
JP
Japan
Prior art keywords
distal end
balloon
ultrasonic
scanning direction
plate
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
Application number
JP2005335231A
Other languages
Japanese (ja)
Other versions
JP4716500B2 (en
Inventor
Tetsuya Tarumoto
哲也 樽本
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pentax Corp
Original Assignee
Pentax Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Pentax Corp filed Critical Pentax Corp
Priority to JP2005335231A priority Critical patent/JP4716500B2/en
Publication of JP2007135949A publication Critical patent/JP2007135949A/en
Application granted granted Critical
Publication of JP4716500B2 publication Critical patent/JP4716500B2/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/12—Diagnosis using ultrasonic, sonic or infrasonic waves in body cavities or body tracts, e.g. by using catheters
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/08—Detecting organic movements or changes, e.g. tumours, cysts, swellings
    • A61B8/0833—Detecting organic movements or changes, e.g. tumours, cysts, swellings involving detecting or locating foreign bodies or organic structures
    • A61B8/0841—Detecting organic movements or changes, e.g. tumours, cysts, swellings involving detecting or locating foreign bodies or organic structures for locating instruments
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/44—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device
    • A61B8/4444—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device related to the probe
    • A61B8/445—Details of catheter construction

Abstract

<P>PROBLEM TO BE SOLVED: To provide a distal end of an ultrasonic endoscope in which the bulge of a balloon in the back surface direction of an ultrasonic scanning direction can be regulated surely without repeating the attaching and fixing work of the balloon to an insertion part distal end many times. <P>SOLUTION: In the position where a gap 11 is caused from the outer surface of the balloon 20 in the state that the balloon 20 is not bulged on the back surface side of the ultrasonic scanning direction U of a distal end main body 2 constituting the insertion part distal end, a planar member 9 to which the outer surface of the balloon 20 is planarly abutted for regulating the swelling of the balloon 20 in the direction when the balloon 20 starts to expand to the back surface side of the ultrasonic scanning direction U is provided. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

この発明は超音波内視鏡の先端部に関する。   The present invention relates to a distal end portion of an ultrasonic endoscope.

超音波は液体中は伝わり易いが空気中は伝わり難い特性がある。そこで超音波内視鏡の先端部には一般に、超音波プローブが取り付けられている挿入部先端を囲む状態に膨縮自在なサック状のバルーンを取り付けて、バルーン内に脱気水等を送り込んで膨らませるようにしている。   Ultrasonic waves are easily transmitted in liquids but difficult to transmit in air. Therefore, in general, a sac-like balloon that can be expanded and contracted is attached to the distal end portion of the ultrasonic endoscope so as to surround the distal end of the insertion portion to which the ultrasonic probe is attached, and deaerated water or the like is fed into the balloon. I try to inflate it.

ただし、バルーンが超音波走査方向の背面側に膨らむと超音波走査方向への膨らみが不十分になるので、バルーンが超音波走査方向の背面側に膨らむのを規制する部材を設けて、超音波走査方向に効率よく膨らむようにしている（例えば、特許文献１）。
特開２００３−１６９８０５ However, if the balloon inflates to the back side in the ultrasonic scanning direction, the expansion in the ultrasonic scanning direction becomes insufficient, so a member is provided to restrict the balloon from inflating to the back side in the ultrasonic scanning direction. It swells efficiently in the scanning direction (for example, Patent Document 1).
JP 2003-169805 A

特許文献１に記載された発明等においては、図６に示されるように、バルーン９１で囲まれた挿入部先端９０の超音波走査方向Ｕの背面部分に、外方からバルーン９１に押し付けられる単品の固定部材９２をバルーン９１と共に嵌め込むことができる溝９３が形成されている。   In the invention described in Patent Document 1, as shown in FIG. 6, as shown in FIG. 6, a single product that is pressed against the balloon 91 from the outside against the back surface portion in the ultrasonic scanning direction U of the distal end 90 of the insertion portion surrounded by the balloon 91. A groove 93 is formed in which the fixing member 92 can be fitted together with the balloon 91.

そして、バルーン９１を間に挟んだ状態で固定部材９２を溝９３に着脱することにより、挿入部先端９０の超音波走査方向Ｕの背面部分にバルーン９１を任意に固定／解除することができ、固定状態にすることで、図６に示されるようにバルーン９１が超音波走査方向Ｕの背面方向に膨らむ動作が規制されるようになっている。   Then, by attaching / detaching the fixing member 92 to / from the groove 93 with the balloon 91 sandwiched therebetween, the balloon 91 can be arbitrarily fixed / released on the back surface portion of the insertion portion distal end 90 in the ultrasonic scanning direction U, With the fixed state, the operation of the balloon 91 inflating in the back direction in the ultrasonic scanning direction U is restricted as shown in FIG.

しかし、サック状に形成されてその開口部分側が挿入部先端に緊縛固定されたバルーン９１は、固定部材９２による挿入部先端９０への固定位置が少しでもずれると挿入部先端９０に対する膨らみ方に歪みが発生してしまう。したがって、固定部材９２を何度が装着し直さなければならなくなる場合があり、取り扱いが面倒であった。   However, the balloon 91 that is formed in a sack shape and whose opening portion side is tightly fixed to the distal end of the insertion portion is distorted in the way of swelling with respect to the insertion portion distal end 90 when the fixing position of the fixing member 92 to the insertion portion distal end 90 is slightly shifted. Will occur. Therefore, it may be necessary to reattach the fixing member 92 many times, and handling is troublesome.

そこで本発明は、挿入部先端へのバルーンの取り付け固定作業を何度もやり直すことなく、超音波走査方向の背面方向へのバルーンの膨らみを確実に規制することができる超音波内視鏡の先端部を提供することを目的とする。   Therefore, the present invention provides a distal end of an ultrasonic endoscope that can reliably regulate the balloon bulge in the back direction of the ultrasonic scanning direction without repeating the mounting and fixing operation of the balloon on the distal end of the insertion section many times. The purpose is to provide a department.

上記の目的を達成するため、本発明の超音波内視鏡の先端部は、挿入部先端の側方を超音波走査方向とする超音波プローブが挿入部先端の側面に配置され、弾力性のある薄膜状部材からなる膨縮自在なサック状のバルーンが、その開口部分を挿入部先端に緊縛することにより挿入部先端を囲む状態に着脱自在に取り付けられた超音波内視鏡の先端部において、挿入部先端を構成する先端部本体の超音波走査方向の背面側の、バルーンが膨らんでいない状態ではバルーンの外表面との間に隙間が生じる位置に、バルーンが超音波走査方向の背面側に向かって膨らみ始めるとバルーンの外表面が面状に当接してその方向へのバルーンの膨らみが規制される板状部材を設けたものである。   In order to achieve the above object, the distal end portion of the ultrasonic endoscope of the present invention has an elastic probe with an ultrasonic scanning direction on the side of the distal end of the insertion portion disposed on the side surface of the distal end of the insertion portion. At the distal end portion of the ultrasonic endoscope in which an expandable / contractable sac-like balloon made of a thin film member is detachably attached to the insertion portion distal end by binding the opening to the distal end of the insertion portion. The back side of the ultrasonic wave in the ultrasonic scanning direction at the position where a gap is formed between the outer surface of the balloon and the outer surface of the balloon when the balloon is not inflated. A plate-like member is provided in which the outer surface of the balloon comes into contact with the surface of the balloon when the balloon begins to bulge and the balloon is restricted from bulging in that direction.

なお、板状部材が先端部本体に固定的に設けられているとよく、先端部本体に一体に形成されていてもよい。そして、板状部材が、先端部本体の先端より前方に突出しない範囲で後方から前方に向かって突出する状態に配置されているとよい。   Note that the plate-like member may be fixedly provided on the tip portion main body, or may be formed integrally with the tip portion main body. And it is good for the plate-shaped member to arrange | position in the state which protrudes toward the front from back in the range which does not protrude ahead from the front-end | tip of a front-end | tip part main body.

また、板状部材の前方位置にあたる先端部本体の最先端部分に、板状部材の先端面との間に隙間をあけて先端壁が形成されていると、体内挿入動作の際に板状部材の先端が粘膜等にぶつからず挿入を円滑かつ安全に行うことができる。   In addition, when the distal end wall is formed at the most distal end portion of the distal end main body corresponding to the front position of the plate-like member with a gap between the distal end surface of the plate-like member, the plate-like member is inserted during the body insertion operation. Insertion can be carried out smoothly and safely without the tip of the tube hitting the mucous membrane.

本発明によれば、挿入部先端を構成する先端部本体の超音波走査方向の背面側の、バルーンが膨らんでいない状態ではバルーンの外表面との間に隙間が生じる位置に、バルーンが超音波走査方向の背面側に向かって膨らみ始めるとバルーンの外表面に面状が当接してその方向へのバルーンの膨らみが規制される板状部材を設けたことにより、バルーンを超音波走査方向の背面側で固定することなく背面方向へのバルーンの膨らみを規制することができるので、挿入部先端へのバルーンの取り付け固定作業を何度もやり直すことなく、超音波走査方向の背面方向へのバルーンの膨らみを確実に規制することができる。   According to the present invention, the balloon is ultrasonically positioned on the back side in the ultrasonic scanning direction of the distal end main body constituting the distal end of the insertion portion at a position where a gap is formed between the outer surface of the balloon when the balloon is not inflated. By providing a plate-like member that is in contact with the outer surface of the balloon when the balloon starts to swell toward the back side in the scanning direction and the balloon bulge is restricted in that direction, the balloon is placed on the back side in the ultrasonic scanning direction. The balloon bulge in the back direction can be regulated without fixing on the side, so the balloon can be fixed in the back direction in the ultrasonic scanning direction without repeating the mounting and fixing operation of the balloon on the distal end of the insertion section. Swelling can be reliably controlled.

挿入部先端の側方を超音波走査方向とする超音波プローブが挿入部先端の側面に配置され、弾力性のある薄膜状部材からなる膨縮自在なサック状のバルーンが、その開口部分を挿入部先端に緊縛することにより挿入部先端を囲む状態に着脱自在に取り付けられた超音波内視鏡の先端部において、挿入部先端を構成する先端部本体の超音波走査方向の背面側の、バルーンが膨らんでいない状態ではバルーンの外表面との間に隙間が生じる位置に、バルーンが超音波走査方向の背面側に向かって膨らみ始めるとバルーンの外表面が面状に当接してその方向へのバルーンの膨らみが規制される板状部材を設ける。   An ultrasonic probe with the side of the distal end of the insertion section in the ultrasonic scanning direction is arranged on the side surface of the distal end of the insertion section, and an inflatable / suckable sac-like balloon made of an elastic thin-film member inserts the opening. The balloon on the back side in the ultrasonic scanning direction of the distal end main body constituting the distal end of the insertion portion at the distal end portion of the ultrasonic endoscope that is detachably attached to the distal end of the insertion portion by being tied to the distal end of the distal portion When the balloon starts to inflate toward the back side in the ultrasonic scanning direction at a position where a gap is formed between the balloon and the outer surface of the balloon in a state where the balloon is not inflated, the outer surface of the balloon comes into contact with the surface and moves in that direction. A plate-like member that restricts balloon expansion is provided.

図面を参照して本発明の実施例を説明する。
図３は超音波内視鏡の挿入部の先端部分にバルーンが取り付けられていない状態を示しており、可撓性の挿入部１の先端を構成する先端部本体２の先側半部の側面には、矢印Ｕで超音波走査方向の範囲が示されるように側方を扇形に超音波走査して超音波断層像を得るためのいわゆるコンベックスタイプの超音波プローブ３が配置されている。 Embodiments of the present invention will be described with reference to the drawings.
FIG. 3 shows a state where a balloon is not attached to the distal end portion of the insertion portion of the ultrasonic endoscope, and the side surface of the front half of the distal end portion body 2 constituting the distal end of the flexible insertion portion 1. In FIG. 1, a so-called convex type ultrasonic probe 3 for obtaining an ultrasonic tomographic image by ultrasonically scanning the side in a fan shape as indicated by an arrow U is disposed.

その後側に隣接する先端部本体２の後側半部に超音波走査方向Ｕに向けて形成された斜面４には、光学観察像を取り込むための観察窓５が配置されて、図示されていない対物光学系や固体撮像素子等が観察窓５の内側に内蔵されている。６は照明窓、７は処置具突出口である。   An observation window 5 for capturing an optical observation image is disposed on the inclined surface 4 formed in the rear half of the distal end body 2 adjacent to the rear side in the ultrasonic scanning direction U, and is not illustrated. An objective optical system, a solid-state image sensor, and the like are built inside the observation window 5. 6 is an illumination window, 7 is a treatment tool protrusion.

先端部本体２の中間位置の超音波プローブ３の後端に隣接する部分には、図示されていないバルーンの開口部分を緊縛して固定するための受けになる円周溝状のバルーン固定溝８が形成されている。   A circumferential groove-like balloon fixing groove 8 serving as a receiver for binding and fixing an opening portion of a balloon (not shown) at a portion adjacent to the rear end of the ultrasonic probe 3 at an intermediate position of the distal end main body 2. Is formed.

先端部本体２の超音波走査方向Ｕの背面位置にあたる部分には、バルーンが超音波走査方向Ｕの背面側に向かって膨らみ始めたときにバルーンの外表面に面状に当接してその方向へのバルーンの膨らみを規制する板状部材９が設けられている。   In the portion corresponding to the back surface position of the distal end main body 2 in the ultrasonic scanning direction U, when the balloon starts to inflate toward the back surface side in the ultrasonic scanning direction U, it comes into contact with the outer surface of the balloon in a planar shape and moves in that direction. A plate-like member 9 that restricts the balloon bulge is provided.

１０は、板状部材９の前方位置にあたる先端部本体２の最先端部分に形成された先端壁であり、超音波内視鏡の先端部を体内に挿入する動作の際に板状部材９の先端が粘膜等にぶつからず挿入動作を円滑かつ安全に行うことができる。   Reference numeral 10 denotes a distal end wall formed at the most distal end portion of the distal end main body 2 at the front position of the plate-like member 9, and the plate-like member 9 is inserted during the operation of inserting the distal end portion of the ultrasonic endoscope into the body. The insertion operation can be performed smoothly and safely without the tip hitting the mucous membrane or the like.

図４は、超音波プローブ３が設けられた先端部本体２の先側半部と、そこに取り付けられる前の状態のバルーン２０と、バルーン固定溝８にバルーン２０の開口部分を緊縛固定するためのＯリング３０とを示している。   FIG. 4 shows the front half of the distal end body 2 provided with the ultrasonic probe 3, the balloon 20 in a state before being attached thereto, and the opening portion of the balloon 20 in a balloon fixing groove 8. The O-ring 30 is shown.

バルーン２０とＯリング３０は、共にシリコンゴム等のような弾力性に富んだ材料によって形成され、バルーン２０は薄膜状の部材で指サック状に形成されてその開口端の縁部に口元リング２１が形成され、Ｏリング３０は単純な環状に形成されている。   The balloon 20 and the O-ring 30 are both formed of a material having high elasticity such as silicon rubber, and the balloon 20 is formed in a finger sack shape with a thin film-like member, and the mouth ring 21 is formed at the edge of the opening end. The O-ring 30 is formed in a simple annular shape.

板状部材９は、先端部本体２の背部側（即ち、超音波プローブ３による超音波走査方向の背面側）に沿って先端部本体２の後側半部部分から前方に向かって延出する状態に先端部本体２に一体に突出形成されている。   The plate-like member 9 extends forward from the rear half portion of the tip end main body 2 along the back side of the tip end main body 2 (that is, the back side in the ultrasonic scanning direction by the ultrasonic probe 3). In this state, it is formed so as to project integrally with the tip body 2.

板状部材９の先端は先端部本体２の先端より後方位置にあって、板状部材９の内側部分には、先端部本体２に対して先端側から被せられるバルーン２０が緩く通過できる溝状の隙間１１が形成され、その隙間１１と一つながりに、板状部材９の先端面と先端壁１０との間にも隙間１２が形成されている。   The tip of the plate-like member 9 is located behind the tip of the tip portion main body 2, and the inner portion of the plate-like member 9 has a groove shape through which the balloon 20 covered from the tip side with respect to the tip portion main body 2 can pass loosely. A gap 12 is also formed between the tip surface of the plate-like member 9 and the tip wall 10 so as to be connected to the gap 11.

図５は、先端部本体２の先側半部にバルーン２０が取り付けられて膨らんでいない状態を示しており、バルーン２０は、超音波プローブ３を包み込む状態に先端部本体２の先側半部に被せられ、超音波プローブ３の背面側では隙間１２，１１内に位置している。   FIG. 5 shows a state in which the balloon 20 is attached to the front half of the distal end main body 2 and is not inflated. The balloon 20 wraps the ultrasonic probe 3 and wraps the ultrasonic probe 3. And is located in the gaps 12 and 11 on the back side of the ultrasonic probe 3.

そしてバルーン２０は、開口部分がＯリング３０によりきつく締め付けられてバルーン固定溝８に緊縛固定され、Ｏリング３０をバルーン固定溝８から離脱させればバルーン２０を先端部本体２から取り外すことができる。なお、図５に示されるように、各隙間１２，１１は、バルーン２０の口元リング２１とＯリング３０が共に引っ掛かりなく通過できる寸法に形成されている。   The opening portion of the balloon 20 is tightly fastened by the O-ring 30 and is fastened and fixed to the balloon fixing groove 8, and the balloon 20 can be detached from the distal end body 2 by removing the O-ring 30 from the balloon fixing groove 8. . As shown in FIG. 5, the gaps 12 and 11 are formed in dimensions that allow both the mouth ring 21 and the O-ring 30 of the balloon 20 to pass through without being caught.

そのように構成された超音波内視鏡の先端部において、バルーン２０内に脱気水等が注入されてバルーン２０が膨らむと、図１及びそのII−II断面を図示する図２に示されるように、バルーン２０が超音波プローブ３による超音波走査方向Ｕとその側方とに膨らむ。   When the deaerated water or the like is injected into the balloon 20 at the distal end portion of the thus configured ultrasonic endoscope, the balloon 20 is inflated, as shown in FIG. 1 and FIG. 2 illustrating its II-II cross section. As described above, the balloon 20 expands in the ultrasonic scanning direction U by the ultrasonic probe 3 and the side thereof.

しかし、超音波プローブ３による超音波走査方向Ｕの背面側においては、バルーン２０が膨らみ始めると板状部材９にバルーン２０の外表面が面状に当接してその方向へのバルーン２０の膨らみが規制されるので、バルーン２０が超音波走査方向Ｕ側に効率よく膨らむ。   However, on the back side in the ultrasonic scanning direction U by the ultrasonic probe 3, when the balloon 20 begins to expand, the outer surface of the balloon 20 abuts on the plate-like member 9 in a planar shape, and the balloon 20 expands in that direction. Since it is regulated, the balloon 20 is efficiently inflated in the ultrasonic scanning direction U side.

そして、バルーン２０は開口部分がＯリング３０で先端部本体２に固定されているだけで、超音波走査方向Ｕの背面側においては板状部材９に面状に当接しているだけなので、先端部本体２に対するバルーン２０の膨らみ方に全体的に歪みが発生せず、先端部本体２に対するバルーン２０の取り付け固定作業をやり直す必要が生じない。   The balloon 20 is merely fixed to the tip body 2 with an O-ring 30 at the opening, and is only in contact with the plate-like member 9 on the back side in the ultrasonic scanning direction U. There is no overall distortion in the manner in which the balloon 20 swells with respect to the main part 2, and there is no need to redo the mounting and fixing operation of the balloon 20 with respect to the tip part main body 2.

本発明の実施例の超音波内視鏡の先端部のバルーンが膨らんだ状態の側面図である。It is a side view of the state where the balloon of the front-end | tip part of the ultrasonic endoscope of the Example of this invention was inflated. 本発明の実施例の超音波内視鏡の先端部のバルーンが膨らんだ状態の正面断面図（図１におけるII−II断面図）である。It is front sectional drawing (II-II sectional drawing in FIG. 1) in the state where the balloon of the front-end | tip part of the ultrasonic endoscope of the Example of this invention was inflated. 本発明の実施例の超音波内視鏡の先端部のバルーンが取り付けられていない状態の斜視図である。It is a perspective view in the state where the balloon of the tip part of the ultrasonic endoscope of the example of the present invention is not attached. 本発明の実施例の超音波内視鏡の先端部にバルーンを取り付ける際の状態の側面図である。It is a side view of the state at the time of attaching a balloon to the front-end | tip part of the ultrasonic endoscope of the Example of this invention. 本発明の実施例の超音波内視鏡の先端部にバルーンが取り付けられて膨らんでいない状態の側面図である。It is a side view of a state where a balloon is attached to the distal end portion of the ultrasonic endoscope according to the embodiment of the present invention and is not inflated. 従来の超音波内視鏡の先端部のバルーンが膨らんだ状態の正面断面図である。It is front sectional drawing of the state which the balloon of the front-end | tip part of the conventional ultrasonic endoscope swelled.

符号の説明Explanation of symbols

１ 挿入部
２ 先端部本体
３ 超音波プローブ
８ バルーン固定溝
９ 板状部材
１０ 先端壁
１１ 隙間
１２ 隙間
２０ バルーン
３０ Ｏリング
Ｕ 超音波走査方向 DESCRIPTION OF SYMBOLS 1 Insertion part 2 Tip part main body 3 Ultrasonic probe 8 Balloon fixing groove 9 Plate-shaped member 10 Tip wall 11 Gap 12 Gap 20 Balloon 30 O-ring U Ultrasonic scanning direction

Claims (5)

挿入部先端の側方を超音波走査方向とする超音波プローブが上記挿入部先端の側面に配置され、弾力性のある薄膜状部材からなる膨縮自在なサック状のバルーンが、その開口部分を上記挿入部先端に緊縛することにより上記挿入部先端を囲む状態に着脱自在に取り付けられた超音波内視鏡の先端部において、
上記挿入部先端を構成する先端部本体の上記超音波走査方向の背面側の、上記バルーンが膨らんでいない状態では上記バルーンの外表面との間に隙間が生じる位置に、上記バルーンが上記超音波走査方向の背面側に向かって膨らみ始めると上記バルーンの外表面が面状に当接してその方向への上記バルーンの膨らみが規制される板状部材を設けたことを特徴とする超音波内視鏡の先端部。 An ultrasonic probe having an ultrasonic scanning direction at the side of the distal end of the insertion portion is disposed on a side surface of the distal end of the insertion portion, and an inflatable / suckable sac-like balloon made of an elastic thin-film member opens the opening portion. In the distal end portion of the ultrasonic endoscope that is detachably attached in a state surrounding the distal end of the insertion portion by binding to the distal end of the insertion portion,
When the balloon is not inflated on the back side in the ultrasonic scanning direction of the distal end body constituting the distal end of the insertion portion, the balloon is ultrasonically positioned at a position where a gap is formed between the balloon and the outer surface of the balloon. An ultrasonic endoscope characterized in that a plate-like member is provided in which the outer surface of the balloon comes into contact with the surface when the balloon begins to swell toward the back side in the scanning direction and the balloon is restrained from bulging in that direction. The tip of the mirror. 上記板状部材が、上記先端部本体に固定的に設けられている請求項１記載の超音波内視鏡の先端部。   The distal end portion of the ultrasonic endoscope according to claim 1, wherein the plate-like member is fixedly provided on the distal end portion main body. 上記板状部材が、上記先端部本体に一体に形成されている請求項２記載の超音波内視鏡の先端部。 The distal end portion of the ultrasonic endoscope according to claim 2, wherein the plate-like member is formed integrally with the distal end portion main body. 上記板状部材が、上記先端部本体の先端より前方に突出しない範囲で後方から前方に向かって突出する状態に配置されている請求項１、２又は３記載の超音波内視鏡の先端部。   The distal end portion of the ultrasonic endoscope according to claim 1, 2 or 3, wherein the plate-like member is disposed in a state of projecting from the rear to the front in a range not projecting forward from the distal end of the distal end portion main body. . 上記板状部材の前方位置にあたる上記先端部本体の最先端部分に、上記板状部材の先端面との間に隙間をあけて先端壁が形成されている請求項４記載の超音波内視鏡の先端部。   The ultrasonic endoscope according to claim 4, wherein a distal end wall is formed with a gap between the distal end surface of the plate member and a distal end surface of the distal end main body corresponding to a front position of the plate member. The tip of the.
JP2005335231A 2005-11-21 2005-11-21 Ultrasound endoscope tip Expired - Fee Related JP4716500B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2005335231A JP4716500B2 (en) 2005-11-21 2005-11-21 Ultrasound endoscope tip

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005335231A JP4716500B2 (en) 2005-11-21 2005-11-21 Ultrasound endoscope tip

Publications (2)

Publication Number Publication Date
JP2007135949A true JP2007135949A (en) 2007-06-07
JP4716500B2 JP4716500B2 (en) 2011-07-06

Family

ID=38199504

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2005335231A Expired - Fee Related JP4716500B2 (en) 2005-11-21 2005-11-21 Ultrasound endoscope tip

Country Status (1)

Country Link
JP (1) JP4716500B2 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1998400A2 (en) 2007-05-22 2008-12-03 Nissan Motor Co., Ltd. Secondary battery and vehicle mounting the same
JP2011083410A (en) * 2009-10-15 2011-04-28 Hoya Corp Insertion portion distal end structure of ultrasonic endoscope
WO2013084555A1 (en) * 2011-12-08 2013-06-13 オリンパスメディカルシステムズ株式会社 Ultrasound probe
EP3315077A4 (en) * 2015-06-23 2018-12-05 Olympus Corporation Ultrasonic endoscope
CN109662734A (en) * 2019-03-04 2019-04-23 苏州市立普医疗科技有限公司 A kind of intracavitary probe set
WO2020177054A1 (en) * 2019-03-04 2020-09-10 王沁 Intracavity probe cover

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04244144A (en) * 1991-01-30 1992-09-01 Asahi Optical Co Ltd Ultrasonic endoscope
JPH05293105A (en) * 1992-04-23 1993-11-09 Asahi Optical Co Ltd Ultrasonic diagnostic device
JP2002177276A (en) * 2000-12-13 2002-06-25 Asahi Optical Co Ltd Head end part of ultrasonic diagnostic device
JP2003070791A (en) * 2001-09-05 2003-03-11 Pentax Corp Tip end part of ultrasonic endoscope

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04244144A (en) * 1991-01-30 1992-09-01 Asahi Optical Co Ltd Ultrasonic endoscope
JPH05293105A (en) * 1992-04-23 1993-11-09 Asahi Optical Co Ltd Ultrasonic diagnostic device
JP2002177276A (en) * 2000-12-13 2002-06-25 Asahi Optical Co Ltd Head end part of ultrasonic diagnostic device
JP2003070791A (en) * 2001-09-05 2003-03-11 Pentax Corp Tip end part of ultrasonic endoscope

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1998400A2 (en) 2007-05-22 2008-12-03 Nissan Motor Co., Ltd. Secondary battery and vehicle mounting the same
JP2011083410A (en) * 2009-10-15 2011-04-28 Hoya Corp Insertion portion distal end structure of ultrasonic endoscope
WO2013084555A1 (en) * 2011-12-08 2013-06-13 オリンパスメディカルシステムズ株式会社 Ultrasound probe
JP5253693B1 (en) * 2011-12-08 2013-07-31 オリンパスメディカルシステムズ株式会社 Ultrasonic probe
CN103281967A (en) * 2011-12-08 2013-09-04 奥林巴斯医疗株式会社 Ultrasound probe
EP3315077A4 (en) * 2015-06-23 2018-12-05 Olympus Corporation Ultrasonic endoscope
US11684340B2 (en) 2015-06-23 2023-06-27 Olympus Corporation Ultrasound endoscope
CN109662734A (en) * 2019-03-04 2019-04-23 苏州市立普医疗科技有限公司 A kind of intracavitary probe set
WO2020177054A1 (en) * 2019-03-04 2020-09-10 王沁 Intracavity probe cover

Also Published As

Publication number Publication date
JP4716500B2 (en) 2011-07-06

Similar Documents

Publication Publication Date Title
JP4716500B2 (en) Ultrasound endoscope tip
US9033865B2 (en) Treatment tool for endoscope
WO2004032729A1 (en) Tip hood member for endoscope
JP6185294B2 (en) Endoscope
JP2008302097A (en) Clip device for endoscope
US10398288B2 (en) Hood for ultrasonic endoscope and ultrasonic endoscope
JP5117842B2 (en) Endoscope bending tool and endoscope set
JP2009201858A (en) Device for preventing excessive insertion and medical instrument having it
JP2004016728A (en) Ultrasonic diagnostic apparatus
JP2006204465A (en) Distal end portion of ultrasonic endoscope for treatment
JP2006192086A (en) Distal end part of endoscope to be inserted into large intestine
JP2009261642A (en) Endoscopic probe-mounting fitting
JP2009273570A (en) Hood for endoscope
JP3869707B2 (en) The tip of the ultrasonic diagnostic equipment
JP4681776B2 (en) Ultrasound endoscope tip
JP2006204642A (en) Ultrasonic endoscope system and ultrasonic vibrator array
US20220361846A1 (en) Ultrasound endoscope
CN111107777A (en) Outer sleeve
JP2003169805A (en) Distal end of ultrasonic diagnosis apparatus
JP5967517B2 (en) Endoscope overtube
JP3042343B2 (en) Cylindrical flexible membrane mounting device
JP2005296305A (en) Insertion aid for parent-child endoscope
JP2008073186A (en) Insertion section of endoscope
JP2003319942A (en) Balloon mounting method for ultrasonic diagnostic device
JPH09131302A (en) Cover type endoscope

Legal Events

Date Code Title Description
A711 Notification of change in applicant

Free format text: JAPANESE INTERMEDIATE CODE: A712

Effective date: 20080501

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20080806

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20110311

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: 20110323

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20110328

R150 Certificate of patent (=grant) or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (prs date is renewal date of database)

Free format text: PAYMENT UNTIL: 20140408

Year of fee payment: 3

LAPS Cancellation because of no payment of annual fees