JPH0356045B2 - - Google Patents
Info
- Publication number
- JPH0356045B2 JPH0356045B2 JP63057826A JP5782688A JPH0356045B2 JP H0356045 B2 JPH0356045 B2 JP H0356045B2 JP 63057826 A JP63057826 A JP 63057826A JP 5782688 A JP5782688 A JP 5782688A JP H0356045 B2 JPH0356045 B2 JP H0356045B2
- Authority
- JP
- Japan
- Prior art keywords
- tube
- catheter
- balloon
- bag
- transparent
- 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
- 230000017531 blood circulation Effects 0.000 claims description 13
- 238000004891 communication Methods 0.000 claims description 3
- 238000012277 endoscopic treatment Methods 0.000 claims description 3
- 239000000835 fiber Substances 0.000 description 7
- 239000008280 blood Substances 0.000 description 5
- 210000004369 blood Anatomy 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 238000011282 treatment Methods 0.000 description 4
- 238000013532 laser treatment Methods 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 2
- WQZGKKKJIJFFOK-VFUOTHLCSA-N beta-D-glucose Chemical compound OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-VFUOTHLCSA-N 0.000 description 2
- 210000004204 blood vessel Anatomy 0.000 description 2
- 239000008103 glucose Substances 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 210000000056 organ Anatomy 0.000 description 2
- 239000002504 physiological saline solution Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000036772 blood pressure Effects 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001839 endoscopy Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 230000002792 vascular Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Landscapes
- Radiation-Therapy Devices (AREA)
- Endoscopes (AREA)
- Media Introduction/Drainage Providing Device (AREA)
- Laser Surgery Devices (AREA)
Description
【発明の詳細な説明】
この発明は、常時血流が存在する血管内壁又は
心臓内壁を内視し又はレーザ治療する際に、血流
を停止させることなく長時間操作を可能にする内
視治療器装入用透明バルーン付カテーテルに関す
るものである。DETAILED DESCRIPTION OF THE INVENTION The present invention provides endoscopic treatment that enables long-term operation without stopping blood flow when performing endoscopic or laser treatment on the inner wall of a blood vessel or heart where blood flow is constantly present. This invention relates to a catheter with a transparent balloon for device insertion.
（従来技術）
血液循環系の器官には常時血流が存在している
ため器官の内璧を内視又は外科的に治療するには
観察部位と光学系との間の血液を排除しな状態で
しなければならない。(Prior art) Blood flow is always present in organs of the blood circulation system, so in order to treat the inner wall of the organ endoscopically or surgically, it is necessary to remove blood between the observation site and the optical system. must be done.
このため従来から内視カテーテル先端の視野範
囲に生理食塩水やぶどう糖液をガイデイングカテ
ーテルを介して噴出させて血液を排除する方法、
或はカテーテル内部にフラツシユチヤンネルを設
けたカテーテルが提案されている。 For this reason, conventional methods include squirting physiological saline or glucose solution into the visual field of the tip of an endoscopic catheter through a guiding catheter to eliminate blood;
Alternatively, a catheter in which a flash channel is provided inside the catheter has been proposed.
しかし、いずれの場合も血液の逆流或はフアイ
バー周囲の血流によつて視野は短時間のうちに妨
げられて充分な観察がリアルタイムで実現できな
いのが現状であつて、間欠的に得られた良視野観
測画像を再現するには高度な画像処理が必要にな
るのである。 However, in either case, the field of view is blocked in a short time by the backflow of blood or the blood flow around the fiber, making it impossible to achieve sufficient observation in real time. Reproducing a good field of view observation image requires sophisticated image processing.
更に、このような方法では操作時間に限界があ
り、長時間の観察及び治療は不可能である。 Furthermore, such a method has a limited operating time, making long-term observation and treatment impossible.
（目的）
本発明は、観察又は治療部位に透明膨脹バルー
ンを密着させて操作中血液が介在するのを阻止す
ると共に反対側の非視野側に血流路を確保して長
時間操作を可能にする透明膨脹バルーン付カテー
テルを提供するものである。(Purpose) The present invention prevents blood from intervening during the operation by bringing a transparent inflatable balloon into close contact with the observation or treatment area, and also secures a blood flow path on the opposite non-viewing side to enable long-term operation. The present invention provides a catheter with a transparent inflatable balloon.
（構成）
本発明バルーン付カテーテルは、透明膨脹袋
と、該膨脹袋の適所に膨出可能な環状チユーブ又
は棒状チユーブを連通させて取付けてなる透明膨
脹バルーンがカテーテルの先端に取付けられて構
成され、膨脹材の注入によつて前記チユーブと取
付部以外の面が観察部位に押圧されると共に前記
チユーブ間又はチユーブと前記膨脹袋との間に血
流空間が形成されるものである。(Structure) The balloon-equipped catheter of the present invention is constructed by attaching a transparent inflation balloon to the distal end of the catheter, which is made up of a transparent inflation bag and an inflatable annular tube or rod-shaped tube attached to the appropriate position of the inflation bag in communication with each other. By injecting the inflation material, surfaces other than the tube and the attachment portion are pressed against the observation site, and a blood flow space is formed between the tubes or between the tube and the inflation bag.
本発明において透明バルーンは、伸縮性のある
ゴム質膜、又は伸縮性の少ない合成樹脂薄膜或は
これらの混製膜が用いられ、膨脹袋の膨張時の形
状は球状、楕円状、円筒状等である。 In the present invention, the transparent balloon is made of a stretchable rubber film, a thin synthetic resin film with little stretch, or a mixture thereof, and the shape of the inflatable bag when inflated is spherical, elliptical, cylindrical, etc. It is.
透明膨脹袋を膨脹させるための膨脹材としては
生理食塩水、ぶとう糖液又は炭酸ガスなどであ
る。 Inflation materials for inflating the transparent inflatable bag include physiological saline, glucose solution, carbon dioxide gas, and the like.
カテーテル内に挿入されるフアイバー束は、イ
メージガイドフアイバー、照光用フアイバー及び
レーザ導入用フアイバーからなり、その先端部に
取付けたレンズ及び／又はプリズムを膨脹袋内に
おいて回動及び進退可能に位置させるものであ
る。 The fiber bundle inserted into the catheter consists of an image guide fiber, an illumination fiber, and a laser introduction fiber, and a lens and/or prism attached to its tip is positioned so that it can rotate and move forward and backward within the expansion bag. It is.
レンズ又はプリズムは所望する視野範囲に応じ
て選択されるものであつて、セルホツクレンズ、
360°全周プリズム又は直角プリズムの単独又はこ
れらを組合せたものが用いられる。 The lens or prism is selected depending on the desired field of view, and includes a self-cleaning lens,
A 360° full circumference prism or a right angle prism may be used alone or in combination.
（実施例）
第１図及び第２図は血管内視及び治療用環状チ
ユーブ付バルーンＢの例であつて１はカテーテ
ル、２はその先端に取付けた透明膨張袋であつて
比較伸縮性の少ないプラスチツク膜で構成されて
いる。３は密着面側即ちプリズム６の視野側の面
である。４は、視野を妨げない個所に連接した環
状チユーブであつて、伸縮性の大きいゴム系物質
で作られ、膨脹時にはカテーテルの軸と直角をな
す平面に位置するように設けられている。５はフ
アイバー束、６はプリズムである。(Example) Figures 1 and 2 are examples of balloon B with an annular tube for vascular endoscopy and treatment, in which 1 is a catheter and 2 is a transparent inflation bag attached to its tip, which has relatively little elasticity. It is composed of a plastic membrane. 3 is the contact surface side, that is, the field side surface of the prism 6. Reference numeral 4 denotes an annular tube connected at a point that does not obstruct the field of vision, and is made of a highly elastic rubber-based material, and is provided so as to be located in a plane perpendicular to the axis of the catheter when inflated. 5 is a fiber bundle, and 6 is a prism.
環状チユーブ４は、膨脹材によつて拡張されて
非視野側の血管内璧に押付けられて膨脹袋２の視
野面３を密着させると共に膨脹袋との間に血流路
となる空間７を形成する。 The annular tube 4 is expanded by the inflatable material and pressed against the inner wall of the blood vessel on the non-viewing side to bring the viewing surface 3 of the inflatable bag 2 into close contact with the inflatable bag 2, and to form a space 7 between it and the inflatable bag to serve as a blood flow path. do.
これによつてレーザ治療操作中も血流を停止す
ることなく施術できるものである。 This allows the laser treatment to be performed without stopping the blood flow even during the laser treatment operation.
なお、ファイバー束５の挿入安全性を高めるた
めに透明保護筒１０をカテーテル先端に構成して
もよい。この場合には膨脹材連通口１１が設けら
れる。 In addition, in order to improve the insertion safety of the fiber bundle 5, a transparent protection tube 10 may be provided at the tip of the catheter. In this case, an inflatable material communication port 11 is provided.
第３図は心臓内壁用のチユーブ付バルーンＢの
例であつて、複数の環状チユーブ４ａ，４ｂ，４
ｃを備えていることによつて密着安定性が一層向
上する。 FIG. 3 shows an example of a tube-equipped balloon B for the inner wall of the heart, in which a plurality of annular tubes 4a, 4b, 4
By providing c, the adhesion stability is further improved.
この場合においては心臓の心拍又は血圧を検出
してバルーン内圧を変動させることによつて心臓
の負担を軽減させることも可能である。 In this case, it is also possible to reduce the burden on the heart by detecting the heartbeat or blood pressure and varying the balloon internal pressure.
第４図は複数の棒状突出チユーブ８ａを設けた
例であつて更に大きな流血空間を維持できる他、
各チユーブの長さを予じめ設定しておくことも可
能である。 FIG. 4 shows an example in which a plurality of rod-shaped protruding tubes 8a are provided, and in addition to maintaining a larger blood flow space,
It is also possible to set the length of each tube in advance.
９はチユーブ先端の押圧部面である。 9 is a pressing surface at the tip of the tube.
（効果）
本発明バルーンは、観察部位との間にの血液を
排除して内視を確実にすると共に操作中、血流を
停止させることがないので時間の制約を受けずに
観察治療ができるのである。(Effects) The balloon of the present invention eliminates blood between the observation site and the observation site to ensure internal vision, and does not stop blood flow during operation, allowing observation and treatment without time constraints. It is.
第１図は、本発明バルーン付カテーテル拡張時
の模型的断面図、第２図はその上図面、第３図及
び第４図は夫々他の実施例品の側面図である。
２は透明膨脹袋、４は環状チユーブ、７は血流
空間。
FIG. 1 is a schematic sectional view of the balloon-equipped catheter of the present invention during expansion, FIG. 2 is a top view thereof, and FIGS. 3 and 4 are side views of other embodiments. 2 is a transparent inflatable bag, 4 is an annular tube, and 7 is a blood flow space.
Claims (1)
環状チユーブ又は棒状チユーブを連通させて取付
けてなる透明膨脹バルーンがカテーテルの先端に
取付けられて構成され、膨脹材の注入によつて前
記チユーブ取付以外の面が観察部位に押圧される
と共に前記チユーブ間又はチユーブと前記膨脹袋
との間に血流用空間が形成されることを特徴とす
る内視治療用バルーン付カテーテル。1. A transparent inflation balloon consisting of a transparent inflation bag and an inflatable annular tube or rod-shaped tube attached in communication with the appropriate position of the inflation bag is attached to the tip of a catheter, and the above-mentioned A balloon-equipped catheter for endoscopic treatment, characterized in that a surface other than the tube attachment surface is pressed against the observation site, and a blood flow space is formed between the tubes or between the tube and the inflatable bag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63057826A JPH01232924A (en) | 1988-03-11 | 1988-03-11 | Balloon catheter for endoscopic treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63057826A JPH01232924A (en) | 1988-03-11 | 1988-03-11 | Balloon catheter for endoscopic treatment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01232924A JPH01232924A (en) | 1989-09-18 |
| JPH0356045B2 true JPH0356045B2 (en) | 1991-08-27 |
Family
ID=13066730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63057826A Granted JPH01232924A (en) | 1988-03-11 | 1988-03-11 | Balloon catheter for endoscopic treatment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01232924A (en) |
-
1988
- 1988-03-11 JP JP63057826A patent/JPH01232924A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01232924A (en) | 1989-09-18 |
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