JP2672464B2 - Balloon catheter - Google Patents
Balloon catheterInfo
- Publication number
- JP2672464B2 JP2672464B2 JP6093437A JP9343794A JP2672464B2 JP 2672464 B2 JP2672464 B2 JP 2672464B2 JP 6093437 A JP6093437 A JP 6093437A JP 9343794 A JP9343794 A JP 9343794A JP 2672464 B2 JP2672464 B2 JP 2672464B2
- Authority
- JP
- Japan
- Prior art keywords
- balloon
- balloon catheter
- catheter
- liquid
- endoscope
- 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.)
- Expired - Lifetime
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Description
【０００１】[0001]
【産業上の利用分野】本発明は、経内視鏡的に体腔内へ
挿入して、送気及び送液ができるバルーンカテーテルの
改良に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a balloon catheter which can be endoscopically inserted into a body cavity to supply air and liquid.
【０００２】[0002]
【従来の技術】近時、内視鏡医学の重要なテ−マとし
て、体腔内の狭窄部を矯正して治療するという分野があ
る。2. Description of the Related Art Recently, as an important theme of endoscopic medicine, there is a field of correcting and treating a stenosis in a body cavity.
【０００３】これは、体腔内に内視鏡を挿入して、この
内視鏡に備えられたチャンネルを利用して、バルーンを
有したカテーテル、いわゆるバルーンカテーテルを体腔
内の狭窄部に挿入し、バルーンを流体で膨張させて一定
期間留置することにより狭窄部を矯正し（広げ）てなさ
れる治療法である。こうした治療には、バルーンカテー
テルを用いて、例えば体液の排出や薬液の注入も行なわ
れている。従って、この様な使用形態におけるバルーン
カテーテルは、患者の負担を軽くするため、留置期間
中、内視鏡を患者の体内から抜き去り、バルーンカテー
テルだけを留置する必要がある。This is because an endoscope is inserted into a body cavity and a channel provided in the endoscope is used to insert a catheter having a balloon, a so-called balloon catheter, into a narrowed portion in the body cavity. This is a treatment method in which a stenosis is corrected (expanded) by inflating a balloon with a fluid and leaving it for a certain period of time. For such treatment, for example, a body fluid is discharged or a drug solution is injected using a balloon catheter. Therefore, in order to reduce the burden on the patient, the balloon catheter in such a usage pattern requires that the endoscope be removed from the patient's body during the indwelling period and only the balloon catheter be indwelled.
【０００４】こうしたバルーンカテーテルとしては、実
公昭５９−１０９６９号公報に、バルーンの膨張・収縮
及び内視鏡の抜去にかかる作業の簡略化を図るため、手
元側端部に反復穿刺可能な封止部材を設けたものが記載
されている。また、独特許第ＤＥ３４０４６６０Ｃ１号
には、手元側に口金を備え、この口金に対して着脱自在
な差込み継手を設けているものがある。あるいは、特開
平２−８４９６３号公報には、バルーン膨張用の送気管
路と、例えば胆石治療のために造影剤等の液体を注入す
る送液管路とを有しているものが記載されている。Such a balloon catheter is disclosed in Japanese Utility Model Publication No. 59-10969, in which the proximal end portion is repeatedly pierceable in order to simplify the work of expanding and contracting the balloon and removing the endoscope. Those provided with members are described. Further, in German Patent DE 3404660 C1, there is one in which a base is provided on the hand side and a plug-in joint which is detachable from the base is provided. Alternatively, Japanese Patent Application Laid-Open No. 2-84963 describes a device having an air supply conduit for inflating a balloon and a liquid supply conduit for injecting a liquid such as a contrast agent for treating gallstones. There is.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、前述し
た従来のバルーンカテーテルは、側視内視鏡に用いる場
合、この側視内視鏡の鉗子起上装置を作動させたとき、
バルーンと鉗子起上用の起上台とが接触し、バルーンの
破損が生じることがある。However, when the above-mentioned conventional balloon catheter is used in a side-viewing endoscope, when the forceps raising device of this side-viewing endoscope is operated,
The balloon may be damaged due to contact between the balloon and the raising base for raising the forceps.
【０００６】本発明は、これらの事情に鑑みてなされた
もので、側視内視鏡に用いてこの側視内視鏡の鉗子起上
装置を作動させたときに、バルーンと鉗子起上用の起上
台とが接触することを防止してバルーンの破損が生じな
いようにしたバルーンカテーテルを提供することを目的
としている。The present invention has been made in view of these circumstances, and is used for raising a balloon and forceps when it is used in a side-viewing endoscope and a forceps raising device of the side-viewing endoscope is operated. It is an object of the present invention to provide a balloon catheter in which the balloon is prevented from being damaged by preventing the balloon catheter from coming into contact with the elevator.
【０００７】[0007]
【課題を解決するための手段】前記目的を達成するため
本発明によるバルーンカテーテルは、流体の注入または
排出によりバルーンの膨張／収縮を行うための管路を有
する可撓管と、該可撓管の先端部近傍に気密に固着した
前記バルーンとを有するバルーンカテーテルにおいて、
前記バルーンは、前記可撓管の先端から２０ｍｍの範囲
に設けられている。To achieve the above object, a balloon catheter according to the present invention comprises a flexible tube having a conduit for inflation / deflation of a balloon by injecting or discharging a fluid, and the flexible tube. In a balloon catheter having the balloon airtightly fixed in the vicinity of the distal end of
The balloon is provided within a range of 20 mm from the tip of the flexible tube.
【０００８】[0008]
【作用】この構成で、側視内視鏡の鉗子起上装置を作動
させても、バルーンと鉗子起上用の起上台とが接触する
ことはない。With this configuration, even if the forceps raising device of the side-view endoscope is operated, the balloon does not come into contact with the forceps raising stand.
【０００９】[0009]
【実施例】以下、図面を参照して本発明の実施例を説明
する。図１ないし図３は本発明の１実施例に係り、図１
はバルーンカテーテルの断面図、図２はバルーンカテー
テルの動作を示す説明図、図３はバルーンカテーテルの
使用例を示す説明図である。Embodiments of the present invention will be described below with reference to the drawings. 1 to 3 relate to an embodiment of the present invention.
Is a cross-sectional view of the balloon catheter, FIG. 2 is an explanatory view showing the operation of the balloon catheter, and FIG. 3 is an explanatory view showing an example of use of the balloon catheter.
【００１０】図１及び図３に示すように、バルーンカテ
ーテル１は、内視鏡３０の鉗子チャンネル口３１から鉗
子チャンネル３２内を挿通させて、被検体３３の体腔内
の狭窄部へ導き、各種の治療を行うものである。As shown in FIGS. 1 and 3, the balloon catheter 1 is inserted through the forceps channel opening 31 of the endoscope 30 into the forceps channel 32 and guided to the narrowed portion in the body cavity of the subject 33, and Is to be treated.
【００１１】このバルーンカテーテル１は、断面形状が
ほぼ円形を呈する可撓管からなるカテーテル本体２を有
し、このカテーテル本体２は、挿入し易いように先端へ
向かって細径となるテ−パ−部２ａを有すると共に、そ
の内部にあって比較的太経の送液用管路３と、細経の送
気用管路４とを管軸方向に併設している。また、カテー
テル本体２の先端側には、その外周面の周方向にバルー
ン５を設け、このバルーン５は、その前後端部をカテー
テル本体２に気密に固着している。前記送気用管路４
は、カテーテル本体２の前記バルーン５の中程に相対す
るカテーテル本体２の外周面に、開口４ａを有してい
る。そして、送気用管路４の基端部側の開口には、断面
がほぼ円形で可撓性を有するチュ−ブからなる送気用接
続管６の先端部が連設されている。従って、この送気用
管路４と送気用接続管６とは、連通している。そして、
この送気用接続管６の後端部側には、透明な材質で形成
された太経のホルダ７が連設されている。このホルダ７
内部の中途には、段部７ａが設けられ、この段部７ａの
ある位置まで、後端側の開口７ｂから流体封止部材８が
装着されると共に、気室７ｃが形成されるようになって
いる。また、前記流体封止部材８は、流体の注入または
排出を行うためのシリンジの穿刺針等を多数回にわたっ
て穿刺しても気密性を保持する透明な材質、例えば、シ
リコンゴム等で形成されている。従って、このホルダ７
の気室７ｃと前記送気用管路４とは、送気用接続管６を
介して連通していると共に気密になっており、シリンジ
の穿刺針を介して、加圧／減圧することによりバルーン
５が膨張／収縮するようになっている。尚、側視内視鏡
を用いて観察する場合、バルーン５は、カテーテル本体
２の先端部から図１に示す距離ｘ、例えば２０ｍｍの範
囲に設けることにより、側視内視鏡の鉗子起上装置を作
動させた時に、バルーン５と鉗子起上用の起上台とが接
触することを防止でき、バルーン５の破損が生じないよ
うになっている。This balloon catheter 1 has a catheter main body 2 made of a flexible tube having a substantially circular cross section, and the catheter main body 2 has a taper whose diameter becomes smaller toward the distal end so that it can be easily inserted. In addition to having the − portion 2a, a relatively large-diameter liquid supply pipe line 3 and a small-diameter air supply pipe line 4 are provided side by side in the pipe axis direction. A balloon 5 is provided on the distal end side of the catheter body 2 in the circumferential direction of the outer peripheral surface thereof, and the front and rear ends of the balloon 5 are airtightly fixed to the catheter body 2. The air supply conduit 4
Has an opening 4a on the outer peripheral surface of the catheter body 2 facing the middle of the balloon 5 of the catheter body 2. Further, a tip end portion of an air supply connection pipe 6 made of a tube having a substantially circular cross section and having flexibility is connected to the opening of the air supply pipe line 4 on the base end side. Therefore, the air supply conduit 4 and the air supply connection pipe 6 communicate with each other. And
On the rear end side of the air supply connecting pipe 6, a thick holder 7 made of a transparent material is continuously provided. This holder 7
A step portion 7a is provided in the middle of the interior, and the fluid sealing member 8 is attached from the opening 7b on the rear end side to the position where the step portion 7a is present, and the air chamber 7c is formed. ing. The fluid sealing member 8 is formed of a transparent material, such as silicone rubber, that maintains airtightness even when a puncture needle of a syringe for injecting or discharging a fluid is punctured many times. There is. Therefore, this holder 7
The air chamber 7c and the air supply conduit 4 are in communication with each other through the air supply connection pipe 6 and are airtight. The balloon 5 is designed to be inflated / deflated. When observing using a side-viewing endoscope, the balloon 5 is provided at a distance x shown in FIG. When the device is operated, it is possible to prevent the balloon 5 and the raising base for raising the forceps from coming into contact with each other, and the balloon 5 is prevented from being damaged.
【００１２】一方、前記カテーテル本体２の先端面中央
に開口３ａを有している送液用管路３は、その後端側
に、断面がほぼ円形で可撓性を有するチュ−ブ状の送液
用接続管９を連設している。この送液用接続管９は、前
記送気用接続管６よりも短く、可撓性により送気用接続
管６と分離・離間できるようになっている。そして、こ
の送液用接続管９の後端部には、図２に示すように、送
液用装着具１０が着脱自在に取り付けられるようになっ
ている。On the other hand, the liquid delivery conduit 3 having the opening 3a at the center of the distal end surface of the catheter body 2 has a flexible tube-shaped delivery tube having a substantially circular cross section at its rear end side. The liquid connecting pipe 9 is connected in series. The liquid supply connection pipe 9 is shorter than the air supply connection pipe 6 and is flexible so that it can be separated from and separated from the air supply connection pipe 6. Then, as shown in FIG. 2, a liquid-feeding mounting tool 10 is detachably attached to the rear end portion of the liquid-feeding connection tube 9.
【００１３】図１に示すように、前記送気用接続管６及
び送液用接続管９を分離せず併設した状態における外径
ｄ1は、カテーテル本体２の外径ｄとほぼ同等となって
おり、またホルダ７の外径ｄ2も同様にほぼ同等となっ
ている。尚、送気用接続管６及び送液用接続管９の外径
ｄ1、並びにホルダ７の外径ｄ2は、カテーテル本体２の
外径ｄよりも小さく形成しても良い。As shown in FIG. 1, the outer diameter d1 in the state where the air supply connection pipe 6 and the liquid supply connection pipe 9 are provided side by side without being separated is substantially equal to the outer diameter d of the catheter body 2. In addition, the outer diameter d2 of the holder 7 is also substantially the same. The outer diameter d1 of the air supply connection pipe 6 and the liquid supply connection pipe 9 and the outer diameter d2 of the holder 7 may be smaller than the outer diameter d of the catheter body 2.
【００１４】図２及び図３を参照し、本実施例の作用に
ついて説明する。内視鏡３０を被検体３３の体腔内へ挿
入した状態で、図３に示すように、内視鏡３０の鉗子チ
ャンネル３１からバルーンカテーテル１を挿入し、鉗子
チャンネル３２内を経て、バルーンカテーテル１は、被
検体３３の体腔内に有る目的の部位、例えば十二指腸乳
頭から胆管３３ａへ至る。この際、内視鏡３０の湾曲状
態により、バルーンカテーテル１を挿入することが困難
な場合、バルーンカテーテル１の送液用管路９にガイド
ワイヤを挿通しながら、バルーンカテーテル１を導入す
る。目的の部位（胆管３３ａ）へ到達したことを内視鏡
３０により確認し、図２に示すように、バルーンカテー
テル１のホルダ７にある流体封止部材８へシリンジ１１
の穿刺針１１ａを穿刺し、透明なホルダ７の気室７ｃへ
穿刺針１１ａが到達したことを確認して、シリンジ１１
より空気を送る。この空気は、気室７ｃから送気用接続
管６及び送気用管路４を経て、バルーン５に至り、図１
において２点鎖線で示すようにバルーン５は膨張し、バ
ルーンカテーテル１の先端部を被検体３３の胆管３３ａ
の近傍に固定する。バルーン５を固定した状態で、流体
封止部材８から穿刺針１１ａを抜き去る。The operation of this embodiment will be described with reference to FIGS. With the endoscope 30 inserted into the body cavity of the subject 33, as shown in FIG. 3, the balloon catheter 1 is inserted from the forceps channel 31 of the endoscope 30 and then passed through the forceps channel 32 to reach the balloon catheter 1 From the target site in the body cavity of the subject 33, for example, the duodenal papilla to the bile duct 33a. At this time, when it is difficult to insert the balloon catheter 1 due to the curved state of the endoscope 30, the balloon catheter 1 is introduced while inserting the guide wire into the liquid feeding conduit 9 of the balloon catheter 1. After confirming that the target site (bile duct 33a) has been reached by the endoscope 30, the syringe 11 is inserted into the fluid sealing member 8 in the holder 7 of the balloon catheter 1 as shown in FIG.
The puncture needle 11a is punctured, and it is confirmed that the puncture needle 11a has reached the air chamber 7c of the transparent holder 7.
Send more air. This air reaches the balloon 5 from the air chamber 7c through the air supply connection pipe 6 and the air supply pipe line 4, and FIG.
2, the balloon 5 is inflated as shown by the chain double-dashed line, and the distal end portion of the balloon catheter 1 is attached to the bile duct 33a of the subject 33.
Fixed near. The puncture needle 11a is removed from the fluid sealing member 8 with the balloon 5 fixed.
【００１５】次に、図２に示すように、バルーンカテー
テル１の送液用接続管９の後端部には、送液用装着具１
０を装着し、さらに送液用装着具１０へシリンジ１２を
挿入して、必要な薬液を注入する。注入された薬液、例
えば造影剤は、送液用接続管９及び送液用管路３を経
て、開口３ａから目的の部位へ、例えば十二指腸乳頭部
が切開されて、開口している部位へ漏れなく注入され
る。そして、必要な処置が済み次第、送液用装着具１０
を取り外し、内視鏡３０をスライドさせて被検体３３か
ら抜去すると共に、必要に応じてバルーンカテーテル１
を被検体３３の体腔内に留置する。Next, as shown in FIG. 2, at the rear end of the liquid-feeding connecting tube 9 of the balloon catheter 1, the liquid-feeding fitting 1 is attached.
0 is attached, and the syringe 12 is further inserted into the liquid delivery fitting 10 to inject the necessary drug solution. The injected medicinal solution, for example, the contrast medium, leaks to the target site from the opening 3a, for example, the duodenal papilla is incised through the liquid-feeding connection tube 9 and the liquid-feeding conduit 3 to the open site. Injected without. Then, as soon as necessary treatment is completed, the liquid delivery fitting 10
And remove the balloon from the subject 33 by sliding the endoscope 30 and, if necessary, the balloon catheter 1
Is placed in the body cavity of the subject 33.
【００１６】本実施例では、送液用接続管９が送気用接
続管６より短く、送液用接続管９がホルダ７に当接する
ことなく、バルーンカテーテル１の外径は、全体に渡っ
てほぼ同一なので、内視鏡３０の鉗子チャンネル３３へ
の挿入・抜去を容易に行うことができる。従って、バル
ーンカテーテル１を長期間、被検体３３へ留置する場合
でも、ホルダ７に内設された流体封止部材８によって気
密状態を保持したまま、すなわち、目的部位に固定した
状態で、内視鏡３０を被検体３３から抜去できると共
に、内視鏡３０を被検体３３の近くに置く必要がないの
で、被検体３３の負担を軽くすることができる。さら
に、バルーンカテーテル１が被検体３３の目的部位のあ
る位置からずれたり、脱落したりすることも防止でき
る。そして、バルーン５により、被検体３３の目的部位
に確実に固定した状態で、送液用管路３及び送液用接続
管９を介して、薬液が注入できると共に、体液や不要な
薬液等を排除できる。In the present embodiment, the liquid-feeding connecting pipe 9 is shorter than the air-feeding connecting pipe 6, the liquid-feeding connecting pipe 9 does not come into contact with the holder 7, and the outer diameter of the balloon catheter 1 is the whole. Therefore, the endoscope 30 can be easily inserted into and removed from the forceps channel 33. Therefore, even when the balloon catheter 1 is left in the subject 33 for a long period of time, the fluid sealing member 8 provided inside the holder 7 maintains the airtight state, that is, the state where the balloon catheter 1 is fixed to the target site. Since the mirror 30 can be removed from the subject 33 and it is not necessary to place the endoscope 30 near the subject 33, the burden on the subject 33 can be reduced. Furthermore, it is possible to prevent the balloon catheter 1 from being displaced or dropped from the position where the target site of the subject 33 exists. Then, with the balloon 5 securely fixed to the target site of the subject 33, the medicinal liquid can be injected through the liquid feeding conduit 3 and the liquid feeding connecting pipe 9, and at the same time, the body fluid, unnecessary liquid medicine and the like can be injected. Can be eliminated.
【００１７】また、ホルダ７及び流体封止部材８は透明
なので、シリンジ１１の穿刺針１１ａが気室７ｃへ到達
したことを容易に目視確認でき、ホルダ７の側壁を無闇
に破損して気密状態を破る虞れがない。そして、治療期
間が終われば、再びシリンジ１１の穿刺針１１ａを穿刺
して、バルーン５を収縮させて、バルーンカテーテル１
を被検体３３から抜去できる。Further, since the holder 7 and the fluid sealing member 8 are transparent, it is possible to easily visually confirm that the puncture needle 11a of the syringe 11 has reached the air chamber 7c, and the side wall of the holder 7 is brutally damaged to be hermetically sealed. There is no danger of breaking. Then, when the treatment period ends, the puncture needle 11a of the syringe 11 is punctured again, the balloon 5 is deflated, and the balloon catheter 1
Can be removed from the subject 33.
【００１８】[0018]
【発明の効果】以上説明したように、本発明によれば、
側視内視鏡に用いて鉗子起上装置を作動させたとき、バ
ルーンと鉗子起上用の起上台とが接触することがなく、
バルーンの破損を防止できる効果がある。As described above, according to the present invention,
When the forceps raising device is operated for use in a side-viewing endoscope, the balloon does not come into contact with the forceps raising stand,
It has the effect of preventing damage to the balloon.
【図１】図１は１実施例に係るバルーンカテーテルの断
面図。FIG. 1 is a cross-sectional view of a balloon catheter according to an embodiment.
【図２】図２はバルーンカテーテルの動作を示す説明
図。FIG. 2 is an explanatory view showing the operation of the balloon catheter.
【図３】図３はバルーンカテーテルの使用例を示す説明
図。FIG. 3 is an explanatory diagram showing a usage example of a balloon catheter.
１…バルーンカテーテル ２…カテーテル本体 ３…送液用管路 ４…送気用管路 ５…バルーン ６…送気用接続管 ７…ホルダ ８…流体封止部材 ９…送液用接続管 DESCRIPTION OF SYMBOLS 1 ... Balloon catheter 2 ... Main body of catheter 3 ... Pipe line for liquid supply 4 ... Pipe line for air supply 5 ... Balloon 6 ... Connection pipe for air supply 7 ... Holder 8 ... Fluid sealing member 9 ... Connection pipe for liquid supply
Claims (1)
膨脹／収縮を行うための管路を有する可撓管と、該可撓
管の先端部近傍に気密に固着した前記バルーンとを有
し、鉗子起上台を有する鉗子起上装置を備えた側視内視
鏡と組み合わせて使用するバルーンカテーテルにおい
て、 前記バルーンは、前記可撓管の先端から２０ｍｍの範囲
に設けられていることを特徴とするバルーンカテーテ
ル。」1. A flexible tube having a conduit for expanding / contracting a balloon by injecting or discharging a fluid, and the balloon airtightly fixed in the vicinity of a tip end portion of the flexible tube.
Side view endoscopy equipped with a forceps raising device having a forceps raising base
A balloon catheter used in combination with a mirror , wherein the balloon is provided within a range of 20 mm from the distal end of the flexible tube. "
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6093437A JP2672464B2 (en) | 1994-05-02 | 1994-05-02 | Balloon catheter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6093437A JP2672464B2 (en) | 1994-05-02 | 1994-05-02 | Balloon catheter |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3002286A Division JPH04241877A (en) | 1991-01-11 | 1991-01-11 | Balloon catheter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0796038A JPH0796038A (en) | 1995-04-11 |
| JP2672464B2 true JP2672464B2 (en) | 1997-11-05 |
Family
ID=14082301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6093437A Expired - Lifetime JP2672464B2 (en) | 1994-05-02 | 1994-05-02 | Balloon catheter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2672464B2 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8425539B2 (en) | 2004-04-12 | 2013-04-23 | Xlumena, Inc. | Luminal structure anchoring devices and methods |
| WO2006062996A2 (en) * | 2004-12-08 | 2006-06-15 | Kenneth Binmoeller | Method and apparatus for performing needle guided interventions |
| DE602007009219D1 (en) * | 2006-06-09 | 2010-10-28 | Wilson Cook Medical Inc | ENDOSCOPE DEVICE WITH EXPANDABLE BALLOON DELIVERY SYSTEM |
| US8475360B2 (en) | 2006-06-09 | 2013-07-02 | Cook Medical Technologies Llc | Endoscopic apparatus having an expandable balloon delivery system |
| US8454632B2 (en) | 2008-05-12 | 2013-06-04 | Xlumena, Inc. | Tissue anchor for securing tissue layers |
| JP5535313B2 (en) | 2009-05-29 | 2014-07-02 | エックスルミナ， インコーポレイテッド | Device and method for deploying a stent across adjacent tissue layers |
| AU2014218701A1 (en) | 2013-02-21 | 2015-09-10 | Xlumena, Inc. | Devices and methods for forming an anastomosis |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63252166A (en) * | 1987-04-08 | 1988-10-19 | オリンパス光学工業株式会社 | Balloon catheter |
| US4906241A (en) * | 1987-11-30 | 1990-03-06 | Boston Scientific Corporation | Dilation balloon |
| JPH01212566A (en) * | 1988-02-19 | 1989-08-25 | Olympus Optical Co Ltd | Manufacture of balloon catheter |
| JPH02107274A (en) * | 1988-10-14 | 1990-04-19 | Sawatani Rubber Kogyo Kk | Double balloon catheter |
| JPH02177965A (en) * | 1988-12-29 | 1990-07-11 | M & M:Kk | Catheter of endoscope with balloon for blood vessel |
-
1994
- 1994-05-02 JP JP6093437A patent/JP2672464B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0796038A (en) | 1995-04-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 19970624 |