JPS61263456A - Catheter and its use - Google Patents
Catheter and its useInfo
- Publication number
- JPS61263456A JPS61263456A JP60102662A JP10266285A JPS61263456A JP S61263456 A JPS61263456 A JP S61263456A JP 60102662 A JP60102662 A JP 60102662A JP 10266285 A JP10266285 A JP 10266285A JP S61263456 A JPS61263456 A JP S61263456A
- Authority
- JP
- Japan
- Prior art keywords
- lumen
- balloon
- catheter
- tube
- blood
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 claims description 12
- 230000017531 blood circulation Effects 0.000 claims description 10
- 238000002224 dissection Methods 0.000 claims description 10
- 239000008280 blood Substances 0.000 claims description 8
- 210000004369 blood Anatomy 0.000 claims description 8
- 210000004204 blood vessel Anatomy 0.000 claims description 8
- 206010002329 Aneurysm Diseases 0.000 claims description 4
- 210000001105 femoral artery Anatomy 0.000 claims description 3
- 208000002251 Dissecting Aneurysm Diseases 0.000 claims description 2
- 230000015271 coagulation Effects 0.000 claims 1
- 238000005345 coagulation Methods 0.000 claims 1
- 230000008520 organization Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 230000002785 anti-thrombosis Effects 0.000 description 3
- 206010002895 aortic dissection Diseases 0.000 description 3
- 230000001112 coagulating effect Effects 0.000 description 3
- 229920002379 silicone rubber Polymers 0.000 description 3
- 239000004945 silicone rubber Substances 0.000 description 3
- 238000002594 fluoroscopy Methods 0.000 description 2
- 229920000126 latex Polymers 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000001356 surgical procedure Methods 0.000 description 2
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 230000003276 anti-hypertensive effect Effects 0.000 description 1
- 239000002220 antihypertensive agent Substances 0.000 description 1
- 229940127088 antihypertensive drug Drugs 0.000 description 1
- 239000002473 artificial blood Substances 0.000 description 1
- 230000036772 blood pressure Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000001684 chronic effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010494 dissociation reaction Methods 0.000 description 1
- 230000005593 dissociations Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 230000002357 endometrial effect Effects 0.000 description 1
- 210000002889 endothelial cell Anatomy 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 210000005036 nerve Anatomy 0.000 description 1
- 230000001575 pathological effect Effects 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 239000002504 physiological saline solution Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
- 238000002560 therapeutic procedure Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Landscapes
- Media Introduction/Drainage Providing Device (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、解離性動脈瘤の治療に用いるカテーテルに関
するもので、手術などの大きな侵襲を加えることなく経
皮径血管的に動脈内部から、血流を止めない状態を保ち
ながら解離の偽腔内における血液の凝固、器質化により
偽腔を閉鎖して治癒せしめるものである。Detailed Description of the Invention [Field of Industrial Application] The present invention relates to a catheter used in the treatment of dissecting aneurysms. This method closes and heals the false lumen by coagulating and organizing blood within the false lumen of the dissection while keeping the blood flow unstopped.
動脈瘤の処置・治療には従来より、■血圧降下療法によ
り解離の進展をくい止め慢性期に移行させる方法、及び
、■開胸して解離部閉鎖、内膜亀裂部切除、人工血管移
植などの手術を行なう方法の２つが知られている。Treatment and treatment of aneurysms has traditionally included methods such as: ■ using antihypertensive therapy to halt the progression of the dissection and transition it to the chronic stage, and ■ conducting thoracotomy to close the dissection, excision of the endometrial fissure, and grafting an artificial blood vessel. Two methods of performing the surgery are known.
■の方法では、解離部に入シこんだ血流による緊張性疼
痛のため極度に体力を消耗し、また解離壁の正負荷によ
る過伸展で血圧調節神経の機能失調が生じて降圧剤への
反応が低下するとされている。しかも解離が急激に進行
することが多い。一方■の方法では、病態が複雑で重篤
な合併症を伴なっているため、外科手術を加えること自
体その侵襲も大きく極めて危険度が高く、治療成績は低
迷を続けている。With method (2), physical strength is extremely wasted due to tension pain caused by blood flow that has entered the dissection site, and hyperextension due to positive loading of the dissection wall causes malfunction of blood pressure regulating nerves, making it difficult to use antihypertensive drugs. It is said that the reaction will be reduced. Furthermore, dissociation often progresses rapidly. On the other hand, with method (■), the pathological condition is complex and accompanied by serious complications, so adding surgery itself is invasive and extremely risky, and the treatment results continue to be poor.
本発明はこのような従来方法の問題点に鑑み、解離性大
動脈瘤の処置・治療において、血流を遮断し開胸するな
どの侵襲の大きい手術手段によることなく、径皮的に血
管内に挿入して血流を保ちながら内部より解離部を押え
偽腔内の血液の凝固、器質化を図り偽腔を閉鎖する、低
侵襲でかつ治療効果の優れたカテーテルを提供すること
を目的としたものである。In view of these problems with conventional methods, the present invention provides a transcutaneous method for treating and treating dissecting aortic aneurysms without using highly invasive surgical methods such as cutting off blood flow and opening the chest. The purpose of this catheter is to provide a minimally invasive catheter with excellent therapeutic effects that can be inserted to maintain blood flow while pressing the dissected area from the inside, coagulating and organizing the blood within the false lumen, and closing the false lumen. It is something.
即ち本発明は、メイン・ルーメンとサブ・ルーメンから
なるチーーブの先端部近傍に膨脹時に内孔を形成する１
つまたは複数個のバルーンを有し、メイン・ルーメンは
チューブ先端部でバルーンの外側に開孔し、またサブ・
ルーメンはバルーンの内側で開孔しておシ、且つチュー
ブの後端部近傍にサブ・ルーメンより分岐した枝管を有
することを特徴とする解離性動脈瘤偽腔閉鎖用カテーテ
ル、及び該カテーテルを、大腿動脈等の血管の末梢部よ
りガイドワイヤで誘導して挿入し、血管内壁の解離部分
で該バルーンを膨脹させることにより解離の起始流入部
を閉鎖して、偽腔への血液流入を防ぎ、且つバルーンで
形成された内孔で真腔の血流を保ち、解離の進展をくい
止め、偽腔内の血液の凝固、器質化により偽腔が癒着、
閉塞した時点でバルーンを収縮させ、カテーテルを抜去
することを特徴とする解離性動脈瘤偽腔閉鎖用カテーテ
ルの使用方法である。That is, the present invention provides a tube that forms an inner hole near the tip of the tube, which is composed of a main lumen and a sub-lumen, when it is inflated.
It has one or more balloons, and the main lumen is opened on the outside of the balloon at the tip of the tube, and the sub lumen is
A catheter for closing a dissected aneurysm false lumen, the lumen of which is opened inside the balloon, and a branch tube branching from the sub-lumen near the rear end of the tube, and the catheter. The balloon is guided and inserted from the distal part of a blood vessel such as the femoral artery using a guide wire, and the balloon is inflated at the dissected part of the inner wall of the blood vessel to close the dissection origin and inflow part and prevent blood from flowing into the false lumen. In addition, the inner hole formed by the balloon maintains the blood flow in the true lumen, preventing the progression of dissection, coagulating the blood within the false lumen, and organizing the false lumen, causing it to heal.
This is a method of using a catheter for closing a dissected aneurysm false lumen, which is characterized by deflating the balloon and removing the catheter at the time of occlusion.
以下、その実施例を図面により詳細に説明する。Hereinafter, the embodiment will be described in detail with reference to the drawings.
第１図は本発明の一実施例となるカテーテルの全体構造
を示す概略図、第２図は第１図のバルーンが膨張し良状
態を示す概略図、第３図を第１図の八−Ｎにおける断面
の例を示す図である。カテーテル本体（１）はメイン・
ルーメン（２）とサプリーメン（３）を有しておシ、そ
の先端部ではメイン・ルーメン（２）が開口部（４）を
有し、サブ・ルーメン（３）は閉鎖している。メイン・
ルーメン（２）とサブ・ルーメン（３）は、ｆ４３図（
ａ）の如く並列的に設けられている場合と、第３図缶）
の如くメイン・ルーメン（２）を構成する内周チー−プ
（５）の周囲に外周チューブ（６）〜を被せるととくよ
り両チューブの間にサブ・ルーメン（３）を同心円状に
形成させてもよい。FIG. 1 is a schematic diagram showing the overall structure of a catheter according to an embodiment of the present invention, FIG. 2 is a schematic diagram showing the balloon in FIG. 1 inflated and in good condition, and FIG. It is a figure which shows the example of the cross section in N. The catheter body (1) is the main
The main lumen (2) has an opening (4) at its distal end, and the sub-lumen (3) is closed. Maine·
Lumen (2) and sub-lumen (3) are shown in figure f43 (
In the case where they are installed in parallel as in a), and in the case of cans in Figure 3)
In particular, by covering the outer tube (6) ~ around the inner circumference cheep (5) constituting the main lumen (2), a sub-lumen (3) is formed concentrically between both tubes. It's okay.
カテーテル本体（１）の先端部近傍には膨脹時内孔（７
）が形成されるバルーン（８）を有しておシ、該バルー
ン（８）は１つまたは複数個で構成されている。サブ・
ルーメン（３）は該バルーン（８）の内側に開孔（９）
を有し、バルー／（８）を膨張あるいは収縮させるのに
使用される。また、後部近傍にはサブ・ルーメン（３）
から分岐した細いチ為−プ（１０）が接続してお）、細
いチューブ（１０）の端末部は三方コックが接続できる
構造となっているか、または弁をスライードさせること
により開日出来る一方弁が付帯しているものでもよい。There is an inner hole (7) near the tip of the catheter body (1) during inflation.
), and the balloon (8) is composed of one or more balloons. sub·
The lumen (3) has a hole (9) inside the balloon (8).
and is used to inflate or deflate the balloon/(8). In addition, there is a sub-lumen (3) near the rear.
The end of the thin tube (10) is connected to a thin tube (10) branched from the tube (10), and the end of the thin tube (10) has a structure that allows a three-way cock to be connected, or a one-way valve that can be opened by sliding the valve. It may also be accompanied by.
メイン・ルーメン（２）の後端部は三方コックが接続で
きる構造となっているか、または開口部を開閉できるシ
ャッターが付帯しているものでもよい。The rear end of the main lumen (2) may have a structure to which a three-way cock can be connected, or may be provided with a shutter that can open and close the opening.
カテーテル本体（１）は、軟質プラスチック、ゴム等を
用いて成形されたものが好的に使用でき、メイン・ルー
メン（２）とサブ・ルーメン（３）を別々のチーープを
組合せて構成してもよく、また一体に成形したものであ
っても何ら支障はないが、使用時にＸ線透視によりその
位置を確認するため、長さ方向全体にわたってＸ線造影
可能な材質のラインを入れるか、またはカテーテル本体
（１）の全体をＸ線造影可能な材質で形成させることが
望ましい。The catheter body (1) can preferably be made of soft plastic, rubber, etc., and the main lumen (2) and sub-lumen (3) can be constructed by combining separate cheeps. Generally, there is no problem even if the catheter is molded in one piece, but in order to confirm its position through X-ray fluoroscopy during use, it is necessary to insert a line made of material that can be contrasted with X-rays along the entire length of the catheter, or to use a catheter. It is desirable that the entire body (1) be made of a material that allows X-ray imaging.
また、本カテーテルはそれ自体が血液適合性材料で形成
されていることが好ましく、もしくはカテーテル本体（
１）の表面に抗血栓性に優れたシリコーン樹脂やセグメ
ント化ポリウレタン等の層を複合的に形成させてもよい
。The catheter itself is preferably made of a blood-compatible material, or the catheter body (
A composite layer of silicone resin, segmented polyurethane, or the like having excellent antithrombotic properties may be formed on the surface of 1).
バルーン（８）トしてはラテックスゴム、シリコーンゴ
ム、または軟質樹脂成形物等が使用できるが、収縮時は
出来るだけコンノξクトに折シたためる形式とし、また
膨脹時にはバルーン（８）は外側に向って膨張すると共
に内孔（７）が閉塞されないように、バルーン内孔側か
伸び難い材質で形成され、あるいは補強等が施されてい
ることが望ましい。さらに、バルーン（８）も抗血栓性
に優れた材料で作られていることが好ましく、抗血栓性
に優れたシリコーンゴムやセグメント化ぼりウレタンで
形成する他、ラテックスゴム等で作ったバルーン表面に
シリコーンゴムやフッ素樹脂等をコーティングし、ある
いはへ・ξリン等を結合したものであってもよい。Latex rubber, silicone rubber, or soft resin molding can be used for the balloon (8), but when deflated, the balloon (8) should be folded as tightly as possible, and when inflated, the balloon (8) should be folded outward. It is desirable that the inner hole side of the balloon be made of a material that is difficult to stretch, or that it be reinforced so that the inner hole (7) is not blocked when the balloon expands. Furthermore, the balloon (8) is also preferably made of a material with excellent antithrombotic properties, such as silicone rubber or segmented urethane with excellent antithrombotic properties, or a balloon surface made of latex rubber, etc. It may be coated with silicone rubber, fluororesin, or the like, or may be bonded with phosphorus, ξphosphorus, or the like.
本発明によるカテーテルの使用方法は、先ず第４図（ａ
）に示したように大腿動脈等の血管（１３）の末梢部よ
り、カテーテル（１１）をメイン・ルーメン（２）内に
通したガイドワイヤ（１２）で誘導して、Ｘ線透視によ
りその位置を確認しながら血管（１３）内に挿入し、バ
ルーン（８）が血管内壁の解離部分（１７）の位置に来
たとき、カテーテル本体（１）の後部近傍に分岐してい
る細いチューブ（１０）から、サブ中ルーメン（３）及
び開孔（９）を通じてバルーン（８）内に生理食塩水等
の液体あるいは空気を送シ込み、バルー／（８）を膨張
させる。これによって第４図伽）の如く解離部分（１７
）が押えられ、真腔（１４）？ｌを流れる血液はバルー
ン（８）の内孔（７）を通って流れるので、血流（１８
）の循環状態が保持される。この状態を保つことにより
、亀裂部（１５）から偽腔（１６）内に入シ残留してい
る血流が凝固し、器質化して、解離部分（１７）が癒着
して偽腔（１６）が閉鎖されるので、この後バルーン（
８）内の液体あるいは空気を抜いてバルーン（８）を収
縮させ、カテーテル（１１）を抜去する。The method of using the catheter according to the present invention is first shown in FIG.
), the catheter (11) is guided from the distal end of a blood vessel (13) such as the femoral artery using a guide wire (12) passed through the main lumen (2), and its position is determined using X-ray fluoroscopy. When the balloon (8) reaches the position of the dissected part (17) on the inner wall of the blood vessel, insert the thin tube (10 ), a liquid such as physiological saline or air is injected into the balloon (8) through the sub-inner lumen (3) and the aperture (9) to inflate the balloon (8). As a result, the dissociated portion (17
) is suppressed and the true cavity (14)? Blood flowing through the balloon (8) flows through the inner hole (7) of the balloon (8), so that the blood flow (18
) is maintained. By maintaining this state, the remaining blood flow enters the false lumen (16) from the fissure (15), coagulates and organizes, and the dissected part (17) coalesces, forming the false lumen (16). will be closed, so after this the balloon (
8) Deflate the balloon (8) by removing the liquid or air, and remove the catheter (11).
本発明によるカテーテルを使用することにより、解離性
大動脈瘤の処置を、血流を速断し且つ開胸するなどの手
術手段を用いることなく、径皮的に血管内から血液の循
環状態を損わすに解離部を押え、偽腔内の血液の凝固、
器質化を図るととＫより偽腔を閉鎖して治癒させること
ができる。By using the catheter according to the present invention, a dissecting aortic aneurysm can be treated by transcutaneously impairing the blood circulation state from within the blood vessel without using surgical means such as cutting off blood flow or opening the chest. Press down on the dissection site, coagulate blood in the false lumen,
By organizing the body, the false lumen can be closed and healed.
特に解離性大動脈瘤では偽腔内に内皮細胞が生成する前
、発症後早期に処置をすることが望まれるが、本発明の
カテーテルは早期の段階で適用することが出来るので、
患者に対してもより有利で安全な処置方法であり、医療
上画期的で有用なものである。In particular, for dissecting aortic aneurysms, it is desirable to treat them early after onset, before endothelial cells are generated within the false lumen, but the catheter of the present invention can be applied at an early stage.
It is a more advantageous and safer treatment method for patients, and is medically innovative and useful.
第１図は本発明の一実施例となる全体構造を示す概略図
、第２図は第１図のバルーン（８）が膨張した状態を示
す概略図、第３図は第１図のＡ −Ａ’Ａおける断面を
示す図で、（ａ）はメイン・ルーメン（２）とサブ・ル
ーメンを並列的に設けた例、（ｂ）はメイン・ルーメン
（２）とサブ・ルーメンを同心円状に設けた例である。
また、第４図は本発明によるカテーテルの使用方法を説
明するための図である。FIG. 1 is a schematic diagram showing the overall structure of an embodiment of the present invention, FIG. 2 is a schematic diagram showing the balloon (8) in FIG. 1 in an inflated state, and FIG. This is a diagram showing a cross section at A'A. (a) is an example in which the main lumen (2) and sub-lumen are provided in parallel, and (b) is an example in which the main lumen (2) and sub-lumen are arranged concentrically. This is an example. Moreover, FIG. 4 is a diagram for explaining the method of using the catheter according to the present invention.
Claims (2)
ーブの先端部近傍に膨脹時に内孔を形成する１つまたは
複数個のバルーンを有し、メイン・ルーメンはチューブ
先端部でバルーンの外側に開孔し、またサブ・ルーメン
はバルーンの内側で開孔しており、且つチューブの後端
部近傍にサブ・ルーメンより分岐した枝管を有すること
を特徴とする解離性動脈瘤偽腔閉鎖用カテーテル。(1) A tube consisting of a main lumen and a sub-lumen has one or more balloons that form an inner hole when inflated near the tip of the tube, and the main lumen opens on the outside of the balloon at the tip of the tube. Further, a catheter for closing a dissected aneurysm false lumen, characterized in that the sub-lumen is opened inside the balloon, and has a branch tube branching from the sub-lumen near the rear end of the tube.
複数個のバルーンを有するカテーテルを、大腿動脈等の
血管の末梢部よりガイドワイヤで誘導して挿入し、血管
内壁の解離部分で該バルーンを膨脹させることにより解
離の起始流入部を閉鎖して、偽腔への血液流入を防ぎ、
且つバルーンで形成された内孔で真腔の血流を保ち、解
離の進展をくい止め、偽腔内の血液の凝固、器質化によ
り偽腔が癒着、閉鎖した時点でバルーンを収縮させ、カ
テーテルを抜去することを特徴とする解離性動脈瘤偽腔
閉鎖用カテーテルの使用方法。(2) A catheter having one or more balloons near its tip that forms an internal hole when inflated is guided by a guide wire from the distal end of a blood vessel such as the femoral artery, and inserted into the dissected part of the inner wall of the blood vessel. Inflating the balloon closes the dissection origin inflow part to prevent blood from flowing into the false lumen;
In addition, the inner hole formed by the balloon maintains the blood flow in the true lumen to prevent the progression of dissection, and when the false lumen is coagulated and closed by coagulation and organization of blood within the false lumen, the balloon is deflated and the catheter is removed. A method of using a catheter for closing a dissecting aneurysm false lumen, which is characterized by being removed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60102662A JPS61263456A (en) | 1985-05-16 | 1985-05-16 | Catheter and its use |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60102662A JPS61263456A (en) | 1985-05-16 | 1985-05-16 | Catheter and its use |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61263456A true JPS61263456A (en) | 1986-11-21 |
| JPH0332378B2 JPH0332378B2 (en) | 1991-05-13 |
Family
ID=14333443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60102662A Granted JPS61263456A (en) | 1985-05-16 | 1985-05-16 | Catheter and its use |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61263456A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6384565A (en) * | 1986-09-29 | 1988-04-15 | 泉工医科工業株式会社 | Balloon catheter for temporarily closing dissecting aneurysm |
| JPS63161974A (en) * | 1986-12-26 | 1988-07-05 | 日本シヤ−ウツド株式会社 | Hemostatic hollow baloon catheter |
| JPH0296153U (en) * | 1989-01-18 | 1990-07-31 | ||
| JPH05157U (en) * | 1991-06-25 | 1993-01-08 | 政徳 鶴岡 | Catheter for fluoroscopic enema |
| US7513892B1 (en) | 1997-10-01 | 2009-04-07 | Navilyst Medical, Inc. | Guidewire compatible port and method for inserting same |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54123681U (en) * | 1978-02-17 | 1979-08-29 | ||
| JPS59164067A (en) * | 1983-03-07 | 1984-09-17 | テルモ株式会社 | Baloon cathetel |
-
1985
- 1985-05-16 JP JP60102662A patent/JPS61263456A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54123681U (en) * | 1978-02-17 | 1979-08-29 | ||
| JPS59164067A (en) * | 1983-03-07 | 1984-09-17 | テルモ株式会社 | Baloon cathetel |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6384565A (en) * | 1986-09-29 | 1988-04-15 | 泉工医科工業株式会社 | Balloon catheter for temporarily closing dissecting aneurysm |
| JPS63161974A (en) * | 1986-12-26 | 1988-07-05 | 日本シヤ−ウツド株式会社 | Hemostatic hollow baloon catheter |
| JPH0296153U (en) * | 1989-01-18 | 1990-07-31 | ||
| JPH05157U (en) * | 1991-06-25 | 1993-01-08 | 政徳 鶴岡 | Catheter for fluoroscopic enema |
| US7513892B1 (en) | 1997-10-01 | 2009-04-07 | Navilyst Medical, Inc. | Guidewire compatible port and method for inserting same |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0332378B2 (en) | 1991-05-13 |
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