JPH0422108B2 - - Google Patents
Info
- Publication number
- JPH0422108B2 JPH0422108B2 JP63260231A JP26023188A JPH0422108B2 JP H0422108 B2 JPH0422108 B2 JP H0422108B2 JP 63260231 A JP63260231 A JP 63260231A JP 26023188 A JP26023188 A JP 26023188A JP H0422108 B2 JPH0422108 B2 JP H0422108B2
- Authority
- JP
- Japan
- Prior art keywords
- balloon
- shaft
- catheter
- distal end
- bladder
- 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
Links
- 239000007788 liquid Substances 0.000 claims description 7
- 230000002485 urinary effect Effects 0.000 claims description 6
- 239000012530 fluid Substances 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 239000011347 resin Substances 0.000 claims description 4
- 229920005989 resin Polymers 0.000 claims description 4
- 210000003708 urethra Anatomy 0.000 description 7
- 210000002700 urine Anatomy 0.000 description 6
- 229920001971 elastomer Polymers 0.000 description 3
- 239000004816 latex Substances 0.000 description 3
- 229920000126 latex Polymers 0.000 description 3
- 239000002504 physiological saline solution Substances 0.000 description 3
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 206010061218 Inflammation Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000004054 inflammatory process Effects 0.000 description 1
- 230000027939 micturition Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000004400 mucous membrane Anatomy 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Landscapes
- Media Introduction/Drainage Providing Device (AREA)
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は尿道に通して尿を排出するバルーンカ
テーテルに関するものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a balloon catheter that passes through the urethra and drains urine.
（従来の技術）
従来のバルーンカテーテルは、第９図、第１０
図に示す如く、先端が閉塞した中空の可撓性シヤ
フト１の先端部側に、シヤフト周面を一周して抜
止め用バルーン３を形成し、該バルーンよりも先
端側のシヤフト周面にはシヤフト１内の導尿腔２
を貫通して開口孔２１を開設している。(Prior art) A conventional balloon catheter is shown in FIGS. 9 and 10.
As shown in the figure, a retaining balloon 3 is formed on the distal end side of a hollow flexible shaft 1 with a closed distal end by going around the circumferential surface of the shaft, and on the circumferential surface of the shaft on the distal side of the balloon. Urinary canal 2 inside shaft 1
An opening hole 21 is formed through the.
シヤフト１の先端側を尿道９に通して膀胱８内
に侵入させ、シヤフト１の肉厚に形成したバルー
ン腔３１からバルーン３に生理食塩水を注入して
膨らませる。 The distal end side of the shaft 1 is passed through the urethra 9 to enter the bladder 8, and physiological saline is injected into the balloon 3 from the thick balloon cavity 31 of the shaft 1 to inflate it.
シヤフト１に引張り力が作用したとき、バルー
ン３が膀胱８の入口８１に引つ掛かつてシヤフト
１の抜止めの役割をなす。 When a tensile force is applied to the shaft 1, the balloon 3 is hooked on the inlet 81 of the bladder 8, and serves to prevent the shaft 1 from slipping out.
カテーテルが尿道９及び膀胱８内に留置され、
尿がシヤフト１内の導尿腔２を通つて外部に排出
される。 A catheter is placed in the urethra 9 and bladder 8,
Urine is discharged to the outside through the urinary cavity 2 within the shaft 1.
（解決すべき課題）
バルーン３の前方に突出するシヤフト１の先端
部分は、尿道９への挿入を容易にするために、先
細に且つ少し硬目に形成されている。(Problem to be Solved) The tip of the shaft 1 that projects forward of the balloon 3 is formed to be tapered and slightly hard in order to facilitate insertion into the urethra 9.
又、膀胱８に尿が充満していないとき、膀胱は
カテーテルの外形に沿う様に変形する。 Further, when the bladder 8 is not filled with urine, the bladder deforms to follow the outer shape of the catheter.
従つてカテーテルの使用時、該カテーテルの先
端が膀胱の粘膜と接触して膀胱壁８１を損傷さ
せ、炎症を惹起する問題がある。 Therefore, when using the catheter, there is a problem that the tip of the catheter comes into contact with the mucous membrane of the bladder, damaging the bladder wall 81 and causing inflammation.
そこで、従来第４図、第５図、第６図に示す如
く、抜止め用バルーン３をじようご状に膨らむ様
に工夫して、バルーン３をシヤフト１の先端より
も前方に突出させ、シヤフト１の先端と膀胱壁８
１との接触を防止するもの、或は第７図の如く、
シヤフト１の周面開口孔２１の近傍の対称位置に
２つのバルーン３，３０を設けて、前記同様バル
ーン３，３０をシヤフト１の先端よりも前方に突
出させるバルーンカテーテルが提案されている。 Therefore, as shown in FIG. 4, FIG. 5, and FIG. 6, conventionally, the retaining balloon 3 was devised to inflate in a funnel shape, and the balloon 3 was made to protrude forward from the tip of the shaft 1. Tip of shaft 1 and bladder wall 8
1, or as shown in Figure 7,
A balloon catheter has been proposed in which two balloons 3, 30 are provided at symmetrical positions near the circumferential opening 21 of the shaft 1, and the balloons 3, 30 protrude forward from the distal end of the shaft 1, as described above.
第４図の場合、バルーン３の肉厚を、基端外側
部分３ａを厚く、他の部分を薄くしてじようご状
に膨らむ様にしているが、この様なバルーンの製
造は困難である。 In the case of Fig. 4, the balloon 3 is made thicker at the proximal outer portion 3a and thinner at other portions so that it swells into a funnel shape, but it is difficult to manufacture such a balloon. .
又、カテーテルを外側に引つ張る力が作用する
と、膨張しているバルーン３は膀胱８の入口８２
の縁に押されてバルーン３が縮径変形し、バルー
ン３の内壁３ｂがシヤフト１の開口を塞ぎ、排尿
を妨げる。 Also, when a tensile force is applied to pull the catheter outward, the inflated balloon 3 moves toward the inlet 82 of the bladder 8.
When the balloon 3 is pushed by the edge of the balloon 3, the diameter of the balloon 3 is reduced, and the inner wall 3b of the balloon 3 closes the opening of the shaft 1, preventing urination.
更に、バルーン３の先端環状部３６が膀胱壁８
１に密接した場合、該じようご状バルーン３の肉
側の尿だけが排出されて、バルーン３の外側の尿
の排出が出来なくなることが実験によつて判つ
た。 Furthermore, the distal annular portion 36 of the balloon 3 is attached to the bladder wall 8.
1, it was found through experiments that only the urine from the flesh side of the funnel-shaped balloon 3 is discharged, and the urine from the outside of the balloon 3 cannot be discharged.
第５図及び第６図は、第４図の変形であつて、
第５図は、バルーン３の基端側に補強用の短いチ
ユーブ３８を被せることによつて、バルーン３を
じようご状に膨らませようとするもの、第６図は
バルーン３の基端に補強用のリブ３９を形成して
バルーン３をじようご状に膨らませようとするも
のであり、何れの場合も製造が困難であり、前記
と同じ問題がある。 5 and 6 are variations of FIG. 4, and
Fig. 5 shows an attempt to inflate the balloon 3 into a funnel shape by covering the proximal end of the balloon 3 with a short reinforcing tube 38, and Fig. 6 shows a reinforcing tube 38 at the proximal end of the balloon 3. In either case, the balloon 3 is difficult to manufacture and has the same problems as described above.
第７図のバルーンカテーテルは、シヤフト１上
に２つのバルーン３，３０を形成することが困難
である。 In the balloon catheter shown in FIG. 7, it is difficult to form the two balloons 3 and 30 on the shaft 1.
即ち、第９図、第１０図の様にシヤフト１を一
周してバルーン３を形成するのであれば、バルー
ン３を膨らませるための流体供給用のバルーン腔
３１を予めシヤフト１の周面に開口させ、該開口
部３２を塞ぐ様にバルーンとなるゴム質の薄肉筒
体３４をシヤフト１に緊密に嵌める。 That is, if the balloon 3 is formed by going around the shaft 1 as shown in FIGS. 9 and 10, a balloon cavity 31 for supplying fluid for inflating the balloon 3 is opened in advance on the circumferential surface of the shaft 1. Then, a thin rubber cylinder 34 that will become a balloon is tightly fitted onto the shaft 1 so as to close the opening 32.
次に薄肉筒体３４の端部とシヤフト１との間に
ラテツクス液を塗布し、薄肉筒体の端部とシヤフ
ト１との間を気密に塞いで簡単にバルーン３を形
成できる。 Next, a latex liquid is applied between the end of the thin-walled cylindrical body 34 and the shaft 1, and the space between the end of the thin-walled cylindrical body 34 and the shaft 1 is airtightly closed, thereby easily forming the balloon 3.
ところが、第７図の場合、各バルーン３，３０
はシヤフト１を一周していないため、バルーン
３，３０の形成方法及びバルーン３，３０とバル
ーン腔３１の連通方法等、解決すべき問題が多
く、実施には至つていない。 However, in the case of Fig. 7, each balloon 3, 30
Since this method does not go around the shaft 1, there are many problems to be solved, such as how to form the balloons 3, 30 and how to communicate the balloon cavity 31 with the balloons 3, 30, and the method has not been implemented yet.
（本発明の目的）
本発明は、抜止め用のバルーン３と、膀胱壁損
傷防止用のバルーン４との目的の異なる２つのバ
ルーン３，４を夫々シヤフト１を１周して形成
し、使用時に膀胱壁８１を傷つけず、又、量産が
可能なバルーンカテーテルを提供することを目的
とする。(Objective of the present invention) The present invention provides two balloons 3 and 4 having different purposes, a balloon 3 for preventing removal and a balloon 4 for preventing damage to the bladder wall, which are formed by going around the shaft 1 once. The purpose of the present invention is to provide a balloon catheter that does not damage the bladder wall 81 and can be mass-produced.
（課題を解決する手段）
上記目的を達するために本発明のバルーンカテ
ーテルは、シヤフト１の先端部に先端面及び周面
を一周して膀胱壁傷付き防止用バルーン４を形成
し、各バルーン３，４とシヤフト１との継ぎ目に
はバルーン及びシヤフトと一体化した樹脂液の薄
層３４，４５が被さり、シヤフト１の内部には各
バルーン３，４に連通してバルーンに流体を供給
するバルーン腔３１，４１が軸方向に設けられて
いる。(Means for Solving the Problems) In order to achieve the above object, the balloon catheter of the present invention includes a balloon 4 for preventing bladder wall damage at the distal end of the shaft 1 by going around the distal end surface and circumferential surface, and each balloon 3 , 4 and the shaft 1 are covered with a thin layer of resin liquid 34, 45 that is integrated with the balloon and the shaft, and inside the shaft 1 there is a balloon that communicates with each balloon 3, 4 and supplies fluid to the balloon. Cavities 31, 41 are provided in the axial direction.
（作用及び効果）
抜止め用バルーン３を膨らませることによつ
て、従前と同様にして、該バルーンが膀胱８の入
口８２に引つ掛かつてカテーテルの抜止めが画ら
れる。(Operations and Effects) By inflating the balloon 3 for preventing withdrawal, the balloon is hooked on the inlet 82 of the bladder 8 and the catheter is prevented from being withdrawn in the same manner as before.
シヤフト１の最先端の膀胱壁傷付き防止用バル
ーン４を膨らませると、シヤフト１の先端は該バ
ルーン４によつて隠れる。これによつて使用時
に、バルーン４よりも硬いシヤフト１の先端が膀
胱壁８１に当たることはなく、膀胱壁８１を傷つ
けることはない。 When the balloon 4 for preventing damage to the bladder wall at the most distal end of the shaft 1 is inflated, the tip of the shaft 1 is hidden by the balloon 4. As a result, during use, the tip of the shaft 1, which is harder than the balloon 4, will not hit the bladder wall 81 and will not damage the bladder wall 81.
膀胱壁傷付き防止バルーン４を膨らませる前の
状態では、該バルーン部分も他の部分もシヤフト
１の太さは殆ど変わらず、尿道９へのシヤフト挿
入に何等支障はない。 Before the balloon 4 for preventing damage to the bladder wall is inflated, the thickness of the shaft 1 is almost the same in both the balloon part and other parts, and there is no problem in inserting the shaft into the urethra 9.
又、２つのバルーン３，４は何れも、シヤフト
１を一周しており、従つて、夫々バルーン腔３
１，４１の開口部３２，４２に被さる様にゴム質
の薄肉筒体３３，４３を嵌め、該筒体の端部とシ
ヤフト１との間にラテツクス液を塗布して凝固さ
せることにより、筒体の開口縁とシヤフト１との
間を密閉して、簡単にバルーン３，４を形成で
き、且つ、バルーン３，４とシヤフト１との継ぎ
目にバルーン及びシヤフトと一体化した樹脂液の
薄層３５，４５が被さるため、バルーンがシヤフ
トから分離することはない。 Moreover, both the two balloons 3 and 4 go around the shaft 1, and therefore each balloon cavity 3
Thin rubber cylinders 33, 43 are fitted so as to cover the openings 32, 42 of the cylinders 1, 41, and a latex liquid is applied and solidified between the ends of the cylinders and the shaft 1. The balloons 3, 4 can be easily formed by sealing between the opening edge of the body and the shaft 1, and a thin layer of resin liquid is integrated with the balloon and the shaft at the joint between the balloons 3, 4 and the shaft 1. 35 and 45 overlap, the balloon will not separate from the shaft.
（実施例）
以下、図面に基づき、本発明を具体的に説明す
る。(Example) Hereinafter, the present invention will be specifically described based on the drawings.
尚、実施例は本発明を説明するためのものであ
つて、特許請求の範囲に記載の発明を限定し、或
は範囲を減縮するものではない。 The examples are for explaining the present invention, and are not intended to limit or reduce the scope of the invention described in the claims.
第１図は、バルーン３，４を膨らませた使用状
態のバルーンカテーテルの正面図、第２図はバル
ーン３，４を膨らませる前のバルーンカテーテル
の先端側の断面図である。 FIG. 1 is a front view of the balloon catheter in use with the balloons 3 and 4 inflated, and FIG. 2 is a cross-sectional view of the distal end side of the balloon catheter before the balloons 3 and 4 are inflated.
カテーテルの可撓性中空シヤフト１は先端が閉
塞し、内部は導尿腔２となつており、該導尿腔は
シヤフト１の基端に開口している。 The flexible hollow shaft 1 of the catheter is closed at its distal end and has a urine drainage cavity 2 inside, which opens at the proximal end of the shaft 1.
シヤフト１の先端側周面には、直径線上の対向
位置に導尿腔２に貫通する開口孔２１が開設され
ている。 An opening hole 21 that penetrates into the urinary cavity 2 is provided on the peripheral surface of the distal end of the shaft 1 at opposing positions on the diametrical line.
上記開口孔２１よりもシヤフト１の基端側に該
開口孔２１に接近して抜止め用バルーン３が形成
され、シヤフト１の先端にシヤフト１を１周して
膀胱壁傷付き防止用バルーン４が形成されてい
る。 A retaining balloon 3 is formed closer to the proximal end of the shaft 1 than the opening 21, and a balloon 4 for preventing bladder wall damage is formed at the tip of the shaft 1 by going around the shaft 1 once. is formed.
シヤフト１の肉厚には、バルーン４を膨らませ
る生理食塩水等の流体を供給する２本のバルーン
腔３１，４１が軸方向に形成され、両バルーン腔
３１，４１の基端はシヤフト１から分岐した分岐
パイプ１１，１２に繋がつている。 Two balloon cavities 31 and 41 are formed in the wall thickness of the shaft 1 in the axial direction to supply fluid such as physiological saline to inflate the balloon 4, and the proximal ends of both balloon cavities 31 and 41 extend from the shaft 1. It is connected to branched pipes 11 and 12.
一方のバルーン腔３１は前記開口孔２１の少し
手前まで延びてシヤフト１の周面に開口してい
る。 One balloon cavity 31 extends slightly in front of the opening hole 21 and is open to the peripheral surface of the shaft 1.
他方のバルーン腔４１はシヤフト１の先端近傍
まで延びてシヤフト１の周面に開口している。 The other balloon cavity 41 extends to the vicinity of the tip of the shaft 1 and is open to the circumferential surface of the shaft 1.
上記バルーン腔３１，４１の２つの開口部３
２，４２を塞ぐ様に、２つのゴム質の薄肉筒体３
４，４４を半径方向に伸ばしながらシヤフト１に
緊密に嵌める。 Two openings 3 of the balloon cavities 31 and 41
2, 42, two thin rubber cylinders 3
4, 44 are tightly fitted onto the shaft 1 while stretching them in the radial direction.
先端側の薄肉筒体４４は一端が閉塞したキヤツ
プ状に形成され、他方の薄肉筒体３４は両端が開
口している。 The thin-walled cylindrical body 44 on the tip side is formed into a cap shape with one end closed, and the other thin-walled cylindrical body 34 is open at both ends.
前記開口孔２１を開設する前に、薄肉筒体３
４，４４を装着したシヤフト１をラテツクス液に
浸ける。これによつて薄肉筒体３４，４４を含む
シヤフト１上に該樹脂液の薄層３５，４５が被覆
され、筒体３４，４４の端部とシヤフト１との間
が気密に塞がれバルーン３，４が形成される。 Before opening the opening hole 21, the thin-walled cylindrical body 3
Immerse the shaft 1 with attachments 4 and 44 in the latex liquid. As a result, the shaft 1 including the thin-walled cylinders 34, 44 is coated with a thin layer 35, 45 of the resin liquid, and the space between the ends of the cylinders 34, 44 and the shaft 1 is airtightly closed, and the balloon is closed. 3 and 4 are formed.
その後、２つのバルーン３，４の間に導尿腔２
に通じる開口孔２１をポンス等で撃ち抜き形成す
る。 After that, the urinary cavity 2 is inserted between the two balloons 3 and 4.
An opening hole 21 communicating with the hole 21 is formed by punching with a punch or the like.
然して、バルーン３，４を膨らませる前に、尿
道９にシヤフト１を挿入する。 However, before inflating the balloons 3 and 4, the shaft 1 is inserted into the urethra 9.
バルーン３，４が膨らんでいない状態では、バ
ルーン部分も他の部分もカテーテルの太さに殆ど
変わりはなく、尿道９への挿入に支障はない。 When the balloons 3 and 4 are not inflated, there is almost no difference in the thickness of the catheter between the balloon portion and other portions, and there is no problem with insertion into the urethra 9.
シヤフト１先端側が膀胱８に達すると、バルー
ン腔３１，４１からバルーン３，４に生理食塩水
を注入してバルーン３，４を膨らませる。 When the tip of the shaft 1 reaches the bladder 8, physiological saline is injected into the balloons 3 and 4 from the balloon cavities 31 and 41 to inflate them.
抜止め用バルーン３が、膀胱８の入口８２に引
つ掛かつてシヤフトの抜止を防止する。 The retaining balloon 3 hooks onto the inlet 82 of the bladder 8 and prevents the shaft from coming off.
シヤフト１の最先端の膀胱壁傷付き防止用バル
ーン４が膨らむと、シヤフト１の先端は該バルー
ン４によつて隠れる。このため、使用時に、該バ
ルーン４が膀胱８１に当たつても、バルーン４よ
りも硬いシヤフト１の先端が膀胱壁８１に当たる
ことはなく、膀胱壁８１を傷つけることはない。 When the balloon 4 for preventing damage to the bladder wall at the most distal end of the shaft 1 is inflated, the tip of the shaft 1 is hidden by the balloon 4. Therefore, even if the balloon 4 hits the bladder 81 during use, the tip of the shaft 1, which is harder than the balloon 4, will not hit the bladder wall 81 and will not damage the bladder wall 81.
本発明の各部構成は上記実施例に限らず、特許
請求の範囲に記載の技術的範囲で種々の変形が可
能である。 The configuration of each part of the present invention is not limited to the above embodiments, and various modifications can be made within the technical scope of the claims.
第１図はバルーンを膨らませた使用状態の本発
明ダブルバルーンカテーテルの正面図、第２図は
バルーンを膨らませる前のバルーンカテーテルの
先端側断面図、第３図は第２図−線に沿う断
面図、第４図は従来のじようご状バルーンカテー
テルの断面図、第５図、第６図は第４図の変形の
実施例の正面図、第７図は２つのバルーンを具え
た従来例のカテーテルの正面図、第８図は第７図
の左側面図、第９図は従来例のバルーンカテーテ
ルの正面図、第１０図は第９図のカテーテルのバ
ルーンを膨らませる前の断面図である。
１…シヤフト、２…導尿腔、３，４…バルー
ン。
Fig. 1 is a front view of the double balloon catheter of the present invention in use with the balloon inflated, Fig. 2 is a sectional view of the distal end side of the balloon catheter before inflating the balloon, and Fig. 3 is a cross section taken along the line of Fig. 2. 4 are cross-sectional views of a conventional funnel-shaped balloon catheter, FIGS. 5 and 6 are front views of a modified embodiment of FIG. 4, and FIG. 7 is a conventional example with two balloons. 8 is a left side view of FIG. 7, FIG. 9 is a front view of a conventional balloon catheter, and FIG. 10 is a cross-sectional view of the catheter of FIG. 9 before the balloon is inflated. be. 1...Shaft, 2...Urinary canal, 3, 4...Balloon.
Claims (1)
面にシヤフト抜止め用バルーン３を形成し、該バ
ルーン３よりもシヤフトの先端側面に、シヤフト
内の導尿腔２に貫通する開口孔２１を有すバルー
ンカテーテルに於て、開口孔２１よりも先端側に
てシヤフトの１の先端面及び周面を一周して傷付
き防止用バルーン４を形成し、各バルーン３，４
とシヤフト１との継ぎ目にはバルーン及びシヤフ
トと一体化した樹脂液の薄層３５，４５が被さ
り、シヤフト１の内部には各バルーン３，４に連
通してバルーンに流体を供給するバルーン腔３
１，４１が軸方向に設けられているダブルバルー
ンカテーテル。1. A balloon 3 for preventing shaft removal is formed on the peripheral surface of the distal end side of the hollow shaft 1 with a closed distal end, and an opening hole 21 that penetrates into the urinary canal 2 in the shaft is formed on the distal side surface of the shaft beyond the balloon 3. In the balloon catheter, a scratch-preventing balloon 4 is formed by going around the distal end surface and peripheral surface of the shaft 1 on the distal side of the opening hole 21, and each balloon 3,4
The joint between the balloon and the shaft 1 is covered with a thin layer of resin liquid 35, 45 that is integrated with the balloon and the shaft, and inside the shaft 1 there is a balloon cavity 3 that communicates with each balloon 3, 4 and supplies fluid to the balloon.
A double balloon catheter in which numerals 1 and 41 are provided in the axial direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63260231A JPH02107274A (en) | 1988-10-14 | 1988-10-14 | Double balloon catheter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63260231A JPH02107274A (en) | 1988-10-14 | 1988-10-14 | Double balloon catheter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02107274A JPH02107274A (en) | 1990-04-19 |
| JPH0422108B2 true JPH0422108B2 (en) | 1992-04-15 |
Family
ID=17345175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63260231A Granted JPH02107274A (en) | 1988-10-14 | 1988-10-14 | Double balloon catheter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02107274A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2672464B2 (en) * | 1994-05-02 | 1997-11-05 | オリンパス光学工業株式会社 | Balloon catheter |
| ATE483492T1 (en) | 2001-01-23 | 2010-10-15 | Abbeymoor Medical Inc | ENDOURETHRAL DEVICE |
| JP5481065B2 (en) * | 2008-12-26 | 2014-04-23 | 富士フイルム株式会社 | Endoscope insertion guide |
-
1988
- 1988-10-14 JP JP63260231A patent/JPH02107274A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02107274A (en) | 1990-04-19 |
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