JP4185350B2 - Ultrasonic endoscope balloon mounting jig - Google Patents

Ultrasonic endoscope balloon mounting jig Download PDF

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Publication number
JP4185350B2
JP4185350B2 JP2002318381A JP2002318381A JP4185350B2 JP 4185350 B2 JP4185350 B2 JP 4185350B2 JP 2002318381 A JP2002318381 A JP 2002318381A JP 2002318381 A JP2002318381 A JP 2002318381A JP 4185350 B2 JP4185350 B2 JP 4185350B2
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JP
Japan
Prior art keywords
balloon
mounting jig
distal end
holding groove
ultrasonic endoscope
Prior art date
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Expired - Fee Related
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JP2002318381A
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Japanese (ja)
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JP2004147972A (en
Inventor
哲也 樽本
健一 大原
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Hoya Corp
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Hoya Corp
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Publication of JP2004147972A publication Critical patent/JP2004147972A/en
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Description

【0001】
【技術分野】
本発明は、超音波内視鏡の先端にバルーンを装着するときに用いるバルーン装着治具に関する。
【0002】
【従来技術及びその問題点】
本出願人は、超音波内視鏡の挿入部先端の表裏に、超音波を発する超音波プローブと、該挿入部先端に超音波プローブを囲むように装着したバルーンを保持する保持溝とを形成し、この保持溝内に該バルーンの外側から保持溝の開口幅より大きい径を有する支持棒を挿入して該バルーンの膨らみを抑制する超音波内視鏡を提案した(特願2001‐372440号)。
【0003】
この超音波内視鏡によると、本来何の役もしない超音波プローブの反対側のバルーンの膨らみを抑制し、余分な脱気水を不要とすることができる。しかし、バルーンの外側から保持棒を保持溝内に挿入するのが難しいという指摘を受けた。
【0004】
【発明の目的】
本発明は、超音波内視鏡の挿入部先端へバルーンを装着する際に、保持棒を保持溝に容易に挿入できるようにしたバルーン装着治具を提供することを目的とする。
【0005】
【発明の概要】
本発明の超音波内視鏡のバルーン装着治具は、挿入部先端の表裏に、超音波を発する超音波プローブと、該挿入部先端に超音波プローブを囲むように装着したバルーンを保持する保持溝とを有する超音波内視鏡;及びこの超音波内視鏡の上記保持溝内に該バルーンの外側から挿入されて該バルーンの膨らみを抑制する、該保持溝の開口幅より大きい径を有する保持棒;を有する超音波内視鏡に用いる治具であって、断面略L字状をなす二面を有し、その二面がなす角度の小さい内面を操作者の指を当てる指当面とし、角度の大きい外面を上記保持溝に保持棒を挿入する際に該保持棒に当接させる押込面としたことを特徴としている。
【0006】
上記指当面には、上記二面のうちの一面に、指を挿入する指包囲部を形成するのが好ましい。
【0007】
【発明の実施の形態】
以下、本発明の第1の実施形態について、図1乃至図14を参照しながら説明する。
図1に示す超音波内視鏡10は、操作部11と挿入部12を有し、挿入部12の先端部12aは、操作部11に設けた湾曲操作装置13の操作に応じて上下及び左右方向に湾曲される。
先端部12a先端には、図示しない観察窓(対物窓)と照明光学系とが設けられている。上記観察窓を介して得られる画像は操作部11近傍に設けた接眼部14から観察することができる。
【0008】
超音波内視鏡10の操作部11と挿入部12の内部には、導光部材としてのファイババンドル(図示略)が挿通されている。ファイババンドルは、操作部11に接続されたライトガイド可撓管15の内部を通って、光源装置16に接続しており、その入射端面は、光源装置16内に配設された光源ランプ(図示略)と対向している。一方、ファイババンドルの先端に形成された出射端面は、挿入部12の先端部12aの内部において上記照明光学系と対向しており、照明光学系に、光源装置16からの照明用光が与えられる。
【0009】
また、操作部11は、ライトガイド可撓管15の内部に配設された送水管(図示略)を介して脱気水を貯留する送水タンク18と接続されており、操作部11と挿入部12の内部には、送水路(図示略)が形成されている。この送水路の入口側端部は送水管に接続しており、出口側端部は、先端部12aの端面の送水口(図示略)に開口している。そして、操作部11に設けられた送水スイッチ(図示略)を押すと、送水口から脱気水が排出され、操作部11に設けられた吸引スイッチ(図示略)を押すと、送水口から脱気水を吸引できる。
【0010】
さらに、図2、図13に示すように挿入部12の先端部12aには、側面視で略円弧状をなす超音波プローブ19が設けられている。この超音波プローブ19は、操作部11に接続された処理回路(図示略)により電気的処理が行われ、操作部11に設けられた超音波スイッチ(図示略)を押すと、その表面から被検部に向けて超音波を発信し、さらに被検部によって反射された超音波を受信するものである。なお、操作部11には、超音波断層像を表示するためのCRTモニタ(図示略)が接続されている。
さらに、先端部12aの超音波プローブ19と反対側の面(以下、裏面12a1と呼ぶ)には、略円柱状の保持溝20が設けられている。この保持溝20は、裏面12a1と平行な軸線を先端部12aの長さ方向に向けて形成されており、最大径部分より小径な一様開口20aを有している。すなわち、保持溝20の軸線と直交する断面形状は、半円形より大きい不完全円形をなしている。
【0011】
操作部11と挿入部12の間には、処置具を挿入するための鉗子口21が設けられており、この鉗子口21は、挿入部12を貫通する鉗子チャンネル(図示略)の入口側端部となっている。鉗子チャンネルの出口側端部(図示略)は、先端部12aの先端面において開口している。
【0012】
次に、超音波内視鏡10の先端部12aにゴム製の指サック状のバルーンBを装着する要領について説明する。
【0013】
まず、バルーンBを先端部12aに装着した後に用いる、保持棒22とバルーン装着治具23の構成について説明する。
保持棒22は円柱形状をなす硬質ゴム製のものであり、その断面径は保持溝20の内径に対応し、保持溝20の開口20aの幅より大きい。
図3乃至図5に示すバルーン装着治具23は、断面略L字状をなす板状部材であり、一つの平面部24と、この平面部24に対して傾斜する別の平面部25とを具備している。そして、これら両平面部24、25がなす角度の小さい内面が、操作者の指を当てる指当面23aとなっており、角度の大きい外面が、上記保持溝20に保持棒22を挿入する際に保持棒22に当接させる押込面23bとなっている。さらに、両平面部24と25とはR面部23cにはよって接続されている。
【0014】
ゴム製の指サック状バルーンBを先端部12aに装着するには、まず、挿入部12の先端部12aにバルーンBを被せ、バルーンBの内面を先端部12aに密着させ、術者の例えば左手Lで先端部12a付近を支持する。次に、図8に示すように、先端部12aの裏面12a1が上側を向くように先端部12aの向きを調整し、バルーンBの保持溝20と対応する箇所に保持棒22を載置し、左手Lで保持棒22が保持溝20から外れないようにする。次いで、図9に示すように、右手Rでバルーン装着治具23を支持し、バルーン装着治具23の押込面23b側のR面部23cを保持棒22の先端部(図9の右上側の端部)の上面に当接させ、さらに、指当面23aに親指R1を当てて、親指R1でバルーン装着治具23を裏面12a1側に押圧して、保持棒22の先端部を弾性変形させながら保持溝20内に挿入させる。さらに、図10、図11に示すように、押込面23b側のR面部23cを裏面12a1側に押圧したまま、バルーン装着治具23を保持溝20に沿って挿入部12の基端部側にゆっくり移動させ、保持棒22をその先端部側から終端部側にかけて徐々に保持溝20内に挿入させる。そして、バルーン装着治具23の端部が、保持溝20の終端部と対応する位置に達すると、図12に示すように、保持棒22全体が保持溝20内に挿入するようになる。
最後に、図6、図13に示すOリングAにより、バルーンBの口元を先端部12aのネック部12nに密着させ、バルーンBにより先端部12aの周囲に水密空間を構成する。
【0015】
このようにしてバルーンBを先端部12aに装着したら、接眼部14を覗きながら挿入部12を体腔内に挿入し、先端部12aを被検部に接近させる。
次いで、操作部11に設けられた送水スイッチを押して、先端部12aの送水口から、バルーンBの内面と先端部12aの水密空間に脱気水を送る。バルーンBの裏面12a1側部分が保持溝20と保持棒22の間に挟まれているので、裏面12a1とバルーンBの間に流入する脱気水は少量であり、脱気水の大部分は超音波プローブ19とバルーンBの間に流れ、バルーンBは図13、図14に示すような状態で膨らむ。
このようにバルーンBが膨らんだら、バルーンBを被検部に接触させ、さらに、超音波スイッチを押して、超音波プローブ19から超音波を発信し、被検部の状態を調べる。
【0016】
バルーンBは、ディスポーザル材料であり、検査毎に以上のバルーンBの装着取り外しを行わなければならない。このような検査毎のバルーンBの交換作業に際し、本実施形態によれば、バルーン装着治具23を用いることにより、保持棒22を保持溝20に簡単に挿入できるようになるので、超音波内視鏡10を用いた検査効率を向上させることができる。
さらに、本実施形態のバルーン装着治具23は、その断面形状を略L字状として成形してあるので、断面形状を直線状として成形した場合に比べて、術者が持ちやすくなっている。
【0017】
なお、バルーン装着治具23を水に濡らしておけば、バルーン装着治具23が保持棒22に対して滑り易くなるので、バルーン装着治具23の操作性が向上する。
【0018】
次に、本発明の第2の実施形態について図15乃至図17を参照しながら説明する。
なお、第1の実施形態と同じ部材には同じ符号を付すに止めて、詳細な説明は省略する。
【0019】
本実施形態のバルーン装着治具26の平面部24の両側部には、弾性変形可能な一対の指包囲部27が設けられている。
そして、図16、図17に示すように、指当面23aに載せた親指R1の周囲を指包囲部27で囲むことにより、親指R1にバルーン装着治具26を簡単かつ確実に装着できる。
その結果、バルーン装着治具26の使い勝手が向上し、保持棒22を保持溝20により簡単に挿入できるようになる。
【0020】
【発明の効果】
本発明によれば、超音波内視鏡の挿入部先端へバルーンを装着し定着させる際に、保持棒を保持溝に容易に挿入できるようになる。さらに、バルーン装着治具の断面形状を略L字状として成形したので、断面状を直線状として成形した場合に比べて、術者が持ちやすくなっている
【図面の簡単な説明】
【図1】本発明の第1の実施の形態の全体構造を示す外観図である。
【図2】超音波内視鏡の挿入部の先端部付近の、一部を破断した斜視図である。
【図3】バルーン装着治具の斜視図である。
【図4】バルーン装着治具の側面図である。
【図5】バルーン装着治具の平面図である。
【図6】超音波内視鏡の先端部の、保持棒を保持溝へ装着する直前の状態の側面図である。
【図7】超音波内視鏡の先端部の、保持棒を保持溝へ装着する直前の状態の正面図である。
【図8】超音波内視鏡の先端部の、保持棒を保持溝に挿入する直前の状態の斜視図である。
【図9】超音波内視鏡の先端部の、バルーン装着治具を用いて保持棒を保持溝に挿入する状態の斜視図である。
【図10】超音波内視鏡の先端部の、バルーン装着治具を用いて保持棒を保持溝に挿入する状態の斜視図である。
【図11】超音波内視鏡の先端部の、バルーン装着治具を用いて保持棒を保持溝に挿入する状態の斜視図である。
【図12】超音波内視鏡の先端部の、保持棒の保持溝への装着を完了した状態の斜視図である。
【図13】超音波内視鏡の先端部の、保持棒を保持溝へ装着した状態の側面図である。
【図14】超音波内視鏡の先端部の、保持棒を保持溝へ装着した状態の正面図である。
【図15】本発明の第2の実施の形態のバルーン装着治具の斜視図である。
【図16】バルーン装着治具の側面図である。
【図17】バルーン装着治具の平面図である。
【符号の説明】
10 超音波内視鏡
11 操作部
12 挿入部
12a 先端部
12a1 裏面
12b 傾斜面
13 湾曲操作装置
14 接眼部
15 ライトガイド可撓管
16 光源装置
18 送水タンク
19 超音波プローブ
20 保持溝
21 鉗子口
22 保持棒
23 バルーン装着治具
23a 指当面
23b 押込面
23c R面部
24 25 平面部
26 バルーン装着治具
27 指包囲部
B バルーン
L 左手
R 右手
R1 親指
[0001]
【Technical field】
The present invention relates to a balloon mounting jig used when mounting a balloon on the tip of an ultrasonic endoscope.
[0002]
[Prior art and its problems]
The present applicant forms an ultrasonic probe that emits ultrasonic waves on the front and back of the distal end of the insertion portion of the ultrasonic endoscope, and a holding groove that holds a balloon attached to surround the ultrasonic probe at the distal end of the insertion portion. Then, an ultrasonic endoscope that suppresses the swelling of the balloon by inserting a support rod having a diameter larger than the opening width of the holding groove into the holding groove from the outside of the balloon has been proposed (Japanese Patent Application No. 2001-372440). ).
[0003]
According to this ultrasonic endoscope, it is possible to suppress bulging of the balloon on the opposite side of the ultrasonic probe, which originally does nothing, and to eliminate the need for extra deaerated water. However, it was pointed out that it was difficult to insert the holding rod into the holding groove from the outside of the balloon.
[0004]
OBJECT OF THE INVENTION
An object of the present invention is to provide a balloon mounting jig in which a holding rod can be easily inserted into a holding groove when a balloon is mounted on the distal end of an insertion portion of an ultrasonic endoscope.
[0005]
SUMMARY OF THE INVENTION
The balloon mounting jig of the ultrasonic endoscope according to the present invention holds an ultrasonic probe that emits ultrasonic waves on the front and back of the distal end of the insertion portion, and a balloon that is mounted on the distal end of the insertion portion so as to surround the ultrasonic probe. An ultrasonic endoscope having a groove; and a diameter larger than the opening width of the holding groove, which is inserted into the holding groove of the ultrasonic endoscope from the outside of the balloon to suppress swelling of the balloon A jig used for an ultrasonic endoscope having a holding rod, and having two surfaces having a substantially L-shaped cross section, and an inner surface with a small angle formed by the two surfaces is used as a finger contact surface against which an operator's finger is applied. The outer surface having a large angle is a pushing surface that comes into contact with the holding rod when the holding rod is inserted into the holding groove.
[0006]
It is preferable that a finger surrounding portion for inserting a finger is formed on one of the two surfaces on the finger contact surface.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, a first embodiment of the present invention will be described with reference to FIGS.
An ultrasonic endoscope 10 shown in FIG. 1 includes an operation unit 11 and an insertion unit 12, and a distal end portion 12 a of the insertion unit 12 is vertically and horizontally and according to an operation of a bending operation device 13 provided in the operation unit 11. Curved in the direction.
An observation window (object window) and an illumination optical system (not shown) are provided at the distal end of the distal end portion 12a. An image obtained through the observation window can be observed from an eyepiece unit 14 provided in the vicinity of the operation unit 11.
[0008]
A fiber bundle (not shown) as a light guide member is inserted through the operation unit 11 and the insertion unit 12 of the ultrasonic endoscope 10. The fiber bundle passes through the inside of the light guide flexible tube 15 connected to the operation unit 11 and is connected to the light source device 16, and an incident end surface thereof is a light source lamp (illustrated) disposed in the light source device 16. (Omitted). On the other hand, the emission end face formed at the tip of the fiber bundle faces the illumination optical system inside the tip 12a of the insertion portion 12, and illumination light from the light source device 16 is given to the illumination optical system. .
[0009]
The operation unit 11 is connected to a water supply tank 18 that stores deaerated water via a water supply pipe (not shown) disposed inside the light guide flexible tube 15. A water passage (not shown) is formed in the interior of 12. The inlet side end of this water supply channel is connected to a water supply pipe, and the outlet side end is open to a water supply port (not shown) on the end face of the tip 12a. When a water supply switch (not shown) provided in the operation unit 11 is pressed, deaerated water is discharged from the water supply port, and when a suction switch (not shown) provided in the operation unit 11 is pressed, the water supply port is disconnected. Can breathe air.
[0010]
Further, as shown in FIGS. 2 and 13, the distal end portion 12 a of the insertion portion 12 is provided with an ultrasonic probe 19 having a substantially arc shape in a side view. The ultrasonic probe 19 is electrically processed by a processing circuit (not shown) connected to the operation unit 11, and when an ultrasonic switch (not shown) provided on the operation unit 11 is pressed, the ultrasonic probe 19 is exposed from the surface. An ultrasonic wave is transmitted toward the inspection part, and an ultrasonic wave reflected by the inspection part is received. The operation unit 11 is connected to a CRT monitor (not shown) for displaying an ultrasonic tomogram.
Furthermore, a substantially cylindrical holding groove 20 is provided on the surface of the distal end portion 12a opposite to the ultrasonic probe 19 (hereinafter referred to as the back surface 12a1). The holding groove 20 is formed with an axis parallel to the back surface 12a1 oriented in the length direction of the tip portion 12a, and has a uniform opening 20a having a smaller diameter than the maximum diameter portion. That is, the cross-sectional shape orthogonal to the axis of the holding groove 20 forms an incomplete circle that is larger than the semicircle.
[0011]
A forceps port 21 for inserting a treatment instrument is provided between the operation unit 11 and the insertion unit 12, and the forceps port 21 is an inlet side end of a forceps channel (not shown) penetrating the insertion unit 12. Has become a department. The outlet side end portion (not shown) of the forceps channel is open at the distal end surface of the distal end portion 12a.
[0012]
Next, a procedure for mounting the rubber finger sac-like balloon B on the distal end portion 12a of the ultrasonic endoscope 10 will be described.
[0013]
First, the configuration of the holding rod 22 and the balloon mounting jig 23 used after the balloon B is mounted on the distal end portion 12a will be described.
The holding rod 22 is made of a hard rubber having a cylindrical shape, and the cross-sectional diameter thereof corresponds to the inner diameter of the holding groove 20 and is larger than the width of the opening 20 a of the holding groove 20.
The balloon mounting jig 23 shown in FIGS. 3 to 5 is a plate-like member having a substantially L-shaped cross section, and includes one plane portion 24 and another plane portion 25 inclined with respect to the plane portion 24. It has. And the inner surface with a small angle formed by these flat portions 24 and 25 is a finger contact surface 23a against which the operator's finger is applied, and when the outer surface with a large angle is inserted into the holding groove 20, the holding bar 22 is inserted. A pressing surface 23 b is provided to be brought into contact with the holding rod 22. Further, both flat portions 24 and 25 are connected to each other by the R surface portion 23c.
[0014]
To attach the rubber finger sac-shaped balloon B to the distal end portion 12a, first, the balloon B is put on the distal end portion 12a of the insertion portion 12, and the inner surface of the balloon B is brought into close contact with the distal end portion 12a. L supports the vicinity of the tip 12a. Next, as shown in FIG. 8, the orientation of the tip portion 12a is adjusted so that the back surface 12a1 of the tip portion 12a faces upward, and the holding rod 22 is placed at a location corresponding to the holding groove 20 of the balloon B, The holding bar 22 is prevented from being detached from the holding groove 20 with the left hand L. Next, as shown in FIG. 9, the balloon mounting jig 23 is supported by the right hand R, and the R surface portion 23 c on the pushing surface 23 b side of the balloon mounting jig 23 is moved to the tip of the holding rod 22 (the end on the upper right side in FIG. 9). Further, the thumb R1 is applied to the finger contact surface 23a, and the balloon mounting jig 23 is pressed against the back surface 12a1 with the thumb R1 to hold the tip of the holding rod 22 while being elastically deformed. Insert into the groove 20. Further, as shown in FIGS. 10 and 11, the balloon mounting jig 23 is moved along the holding groove 20 toward the proximal end side of the insertion portion 12 while the R surface portion 23 c on the pushing surface 23 b side is pressed toward the back surface 12 a 1 side. The holding rod 22 is slowly moved so that the holding rod 22 is gradually inserted into the holding groove 20 from the tip end side to the terminal end side. When the end of the balloon mounting jig 23 reaches a position corresponding to the terminal end of the holding groove 20, the entire holding rod 22 is inserted into the holding groove 20 as shown in FIG. 12.
Finally, the mouth of the balloon B is brought into close contact with the neck portion 12n of the distal end portion 12a by the O-ring A shown in FIGS. 6 and 13, and the water tight space is formed around the distal end portion 12a by the balloon B.
[0015]
When the balloon B is thus attached to the distal end portion 12a, the insertion portion 12 is inserted into the body cavity while looking through the eyepiece portion 14, and the distal end portion 12a is brought closer to the test portion.
Next, a water supply switch provided in the operation unit 11 is pressed to send deaerated water from the water supply port of the tip 12a to the inner surface of the balloon B and the watertight space of the tip 12a. Since the back surface 12a1 side portion of the balloon B is sandwiched between the holding groove 20 and the holding rod 22, the amount of deaerated water flowing between the back surface 12a1 and the balloon B is small, and most of the deaerated water is super It flows between the sonic probe 19 and the balloon B, and the balloon B expands in a state as shown in FIGS.
When the balloon B is inflated in this way, the balloon B is brought into contact with the test part, and further, an ultrasonic switch is pressed to transmit an ultrasonic wave from the ultrasonic probe 19 to check the state of the test part.
[0016]
The balloon B is a disposal material, and the above-described attachment / detachment of the balloon B must be performed for each inspection. In such an exchange operation of the balloon B for each inspection, according to the present embodiment, the holding rod 22 can be easily inserted into the holding groove 20 by using the balloon mounting jig 23. Inspection efficiency using the endoscope 10 can be improved.
Furthermore, since the balloon mounting jig 23 of the present embodiment is formed with a substantially L-shaped cross-sectional shape, it is easier for the operator to hold than when the cross-sectional shape is formed into a linear shape.
[0017]
In addition, if the balloon mounting jig 23 is wetted with water, the balloon mounting jig 23 is easily slidable with respect to the holding rod 22, so that the operability of the balloon mounting jig 23 is improved.
[0018]
Next, a second embodiment of the present invention will be described with reference to FIGS.
Note that the same members as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.
[0019]
A pair of finger surrounding portions 27 that can be elastically deformed are provided on both sides of the plane portion 24 of the balloon mounting jig 26 of the present embodiment.
16 and 17, the balloon mounting jig 26 can be easily and reliably mounted on the thumb R1 by surrounding the thumb R1 placed on the finger contact surface 23a with the finger surrounding portion 27.
As a result, the usability of the balloon mounting jig 26 is improved, and the holding rod 22 can be easily inserted into the holding groove 20.
[0020]
【The invention's effect】
According to the present invention, the holding rod can be easily inserted into the holding groove when the balloon is attached and fixed to the distal end of the insertion portion of the ultrasonic endoscope. Furthermore, since the cross-sectional shape of the balloon mounting jig is formed in a substantially L-shape, it is easier for the operator to hold than in the case where the cross-sectional shape is formed as a straight line.
FIG. 1 is an external view showing an overall structure of a first embodiment of the present invention.
FIG. 2 is a perspective view in which a part near the distal end portion of the insertion portion of the ultrasonic endoscope is broken.
FIG. 3 is a perspective view of a balloon mounting jig.
FIG. 4 is a side view of a balloon mounting jig.
FIG. 5 is a plan view of a balloon mounting jig.
FIG. 6 is a side view showing a state immediately before the holding rod is mounted in the holding groove at the distal end portion of the ultrasonic endoscope.
FIG. 7 is a front view of the distal end portion of the ultrasonic endoscope just before the holding rod is mounted in the holding groove.
FIG. 8 is a perspective view of the distal end portion of the ultrasonic endoscope just before the holding rod is inserted into the holding groove.
FIG. 9 is a perspective view of the distal end portion of the ultrasonic endoscope in a state where a holding rod is inserted into a holding groove using a balloon mounting jig.
FIG. 10 is a perspective view of a state in which a holding rod is inserted into a holding groove at a distal end portion of an ultrasonic endoscope using a balloon mounting jig.
FIG. 11 is a perspective view showing a state in which a holding rod is inserted into a holding groove at a distal end portion of an ultrasonic endoscope using a balloon mounting jig.
FIG. 12 is a perspective view showing a state in which the distal end portion of the ultrasonic endoscope is completely attached to the holding groove of the holding rod.
FIG. 13 is a side view of the distal end portion of the ultrasonic endoscope in a state where the holding rod is mounted in the holding groove.
FIG. 14 is a front view of the distal end portion of the ultrasonic endoscope in a state where the holding rod is mounted in the holding groove.
FIG. 15 is a perspective view of a balloon mounting jig according to a second embodiment of the present invention.
FIG. 16 is a side view of a balloon mounting jig.
FIG. 17 is a plan view of a balloon mounting jig.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Ultrasonic endoscope 11 Operation part 12 Insertion part 12a Tip part 12a1 Back surface 12b Inclination surface 13 Bending operation apparatus 14 Eyepiece part 15 Light guide flexible tube 16 Light source apparatus 18 Water supply tank 19 Ultrasonic probe 20 Holding groove 21 Forceps mouth 22 Holding rod 23 Balloon mounting jig 23a Finger contact surface 23b Push-in surface 23c R surface portion 24 25 Plane portion 26 Balloon mounting jig 27 Finger surrounding portion B Balloon L Left hand R Right hand R1 Thumb

Claims (2)

挿入部先端の表裏に、超音波を発する超音波プローブと、該挿入部先端に超音波プローブを囲むように装着したバルーンを保持する保持溝とを有する超音波内視鏡;及び
この超音波内視鏡の上記保持溝内に該バルーンの外側から挿入されて該バルーンの膨らみを抑制する、該保持溝の開口幅より大きい径を有する保持棒;
を有する超音波内視鏡に用いる治具であって、
断面略L字状をなす二面を有し、その二面がなす角度の小さい内面を操作者の指を当てる指当面とし、角度の大きい外面を上記保持溝に保持棒を挿入する際に該保持棒に当接させる押込面としたことを特徴とする超音波内視鏡のバルーン装着治具。
An ultrasonic endoscope having an ultrasonic probe that emits ultrasonic waves on the front and back of the distal end of the insertion portion, and a holding groove that holds a balloon attached to the distal end of the insertion portion so as to surround the ultrasonic probe; A holding rod having a diameter larger than the opening width of the holding groove, which is inserted from the outside of the balloon into the holding groove of the endoscope to suppress the balloon from expanding;
A jig used for an ultrasonic endoscope having
It has two surfaces having a substantially L-shaped cross section, and the inner surface formed by the two surfaces is a finger contact surface against which the operator's finger is applied, and the outer surface having the larger angle is inserted into the holding groove when the holding rod is inserted. A balloon mounting jig for an ultrasonic endoscope, characterized in that the pressing surface is brought into contact with a holding rod.
請求項1記載の超音波内視鏡のバルーン装着治具において、さらに、上記指当面には、上記二面のうちの一面に、指を挿入する指包囲部が形成されている超音波内視鏡のバルーン装着治具。2. The ultrasonic endoscope balloon mounting jig according to claim 1, further comprising: a finger surrounding portion formed on one surface of the two surfaces on the finger contact surface. Mirror balloon mounting jig.
JP2002318381A 2002-10-31 2002-10-31 Ultrasonic endoscope balloon mounting jig Expired - Fee Related JP4185350B2 (en)

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Application Number Priority Date Filing Date Title
JP2002318381A JP4185350B2 (en) 2002-10-31 2002-10-31 Ultrasonic endoscope balloon mounting jig

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002318381A JP4185350B2 (en) 2002-10-31 2002-10-31 Ultrasonic endoscope balloon mounting jig

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JP4185350B2 true JP4185350B2 (en) 2008-11-26

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