JPS6143442Y2 - - Google Patents
Info
- Publication number
- JPS6143442Y2 JPS6143442Y2 JP1980013836U JP1383680U JPS6143442Y2 JP S6143442 Y2 JPS6143442 Y2 JP S6143442Y2 JP 1980013836 U JP1980013836 U JP 1980013836U JP 1383680 U JP1383680 U JP 1383680U JP S6143442 Y2 JPS6143442 Y2 JP S6143442Y2
- Authority
- JP
- Japan
- Prior art keywords
- tube body
- tip
- outer diameter
- contrast medium
- tube
- 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
Links
- 239000002872 contrast media Substances 0.000 claims description 19
- 238000001802 infusion Methods 0.000 claims 1
- 238000009434 installation Methods 0.000 claims 1
- 210000000013 bile duct Anatomy 0.000 description 8
- 230000002183 duodenal effect Effects 0.000 description 7
- 238000002347 injection Methods 0.000 description 7
- 239000007924 injection Substances 0.000 description 7
- 239000002184 metal Substances 0.000 description 5
- 210000001198 duodenum Anatomy 0.000 description 4
- 201000001883 cholelithiasis Diseases 0.000 description 3
- 208000001130 gallstones Diseases 0.000 description 3
- 239000004575 stone Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000001839 endoscopy Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
Description
【考案の詳細な説明】
本考案は内視鏡を用いて体腔内に造影剤を注入
するに当り、上記内視鏡のチヤンネルに挿通して
造影剤を体腔内に導びくために使用する内視鏡用
造影剤注入チユーブの改良に関する。[Detailed description of the invention] This invention is an endoscope that is inserted into the channel of the endoscope to guide the contrast medium into the body cavity. This invention relates to improvement of contrast medium injection tube for endoscopy.
従来の内視鏡用造影剤注入チユーブは十二指腸
乳頭部から胆管内に向けて差し込まれるが、その
チユーブ先端部は単に細径に形成してあり、これ
を差し込むだけであるため、たとえば胆管内に結
石などがある場合には造影剤を注入してもチユー
ブ先端部と十二指腸乳頭部との隙間から造影剤が
漏れ出し、胆管内の圧力を上昇させ得ず、その結
石のある個所より奥まで注入することができなか
つた。 Conventional contrast agent injection tubes for endoscopes are inserted into the bile duct from the duodenal papilla, but the tip of the tube is simply formed with a small diameter, and because it is simply inserted, it cannot be inserted into the bile duct, for example. If there is a stone, etc., even if a contrast medium is injected, it will leak from the gap between the tip of the tube and the duodenal papilla, and the pressure within the bile duct will not increase, so the contrast medium will be injected deeper than where the stone is located. I couldn't do it.
そこで、チユーブ先端に金属チツプを取り付け
ることが考えられるが、この方法は金属チツプが
外れやすく、十二指腸や胆管内に落すことが予想
され非常に危険である。また、チユーブ先端部に
バルーンを設ける方法も考えられるが、この場合
には限定された太さの中で、そのバルーンを膨脹
させるためのルーメンと造影剤を送るためのルー
メンがそれぞれ必要であるから、必然的に造影剤
を送るためのルーメン部分が細くなり、管内抵抗
の増大により造影剤の注入に支障を来たすという
不都合がある。 Therefore, it has been considered to attach a metal tip to the tip of the tube, but this method is extremely dangerous as the metal tip is likely to come off and could fall into the duodenum or bile duct. Another option is to install a balloon at the tip of the tube, but in this case, within a limited thickness, a lumen to inflate the balloon and a lumen to send the contrast medium are required. However, the lumen for conveying the contrast medium inevitably becomes narrower, and the increase in intraluminal resistance causes problems in contrast medium injection.
本考案は上記事情に着目してなされたもので、
その目的とするところは、造影剤を注入する体腔
内での注入圧力を高めてその造影剤を確実に送り
込むことができる内視鏡用造影剤注入チユーブを
提供することにある。 This invention was made with attention to the above circumstances,
The purpose is to provide a contrast medium injection tube for an endoscope that can increase the injection pressure within the body cavity into which the contrast medium is injected and reliably feed the contrast medium.
以下、本考案を図面に示す一実施例を参照して
説明する。 Hereinafter, the present invention will be described with reference to an embodiment shown in the drawings.
第１図中１は内視鏡用造影剤注入チユーブのチ
ユーブ本体であり、この基端にはルアーロツク口
金２が取り付けられている。このルアーロツク口
金２には図示しない注入器を装着できるようにな
つている。また、上記チユーブ本体１はフツ素樹
脂、たとえばポリ４フツ化エチレンなどによつて
一体に成形され、彎曲できるようになつている。
さらにチユーブ本体１の先端部３は第２図で示す
ように形成されている。 In Fig. 1, reference numeral 1 denotes the tube body of an endoscopic contrast medium injection tube, the base end of which is fitted with a luer lock mouthpiece 2. An injector (not shown) can be attached to this luer lock mouthpiece 2. The tube body 1 is integrally molded from a fluororesin, such as polytetrafluoroethylene, and is bendable.
Further, the tip portion 3 of the tube body 1 is formed as shown in FIG.
すなわち、この先端部３の内部にはチユーブ本
体１の内径より大きく、かつチユーブ本体１の外
径よりわずかに小さな外径を有する短長の金属製
パイプ４を圧入し、膨出部５を形成するととも
に、これにより先端側を熱成形してチユーブ本体
１の外径より小さな先端細径部６を形成したもの
である。しかして、先端部３には、チユーブ本体
１の外径より大きな膨出部５と、この膨出部５よ
り先端側に上記チユーブ本体１の外径より小さな
先端細径部６がそれぞれ一体に形成されている。
具体的な寸法を挙げれば内視鏡７のチヤンネル内
径が２mmであるならチユーブ本体１の外径は1.6
mm、膨出部５の最大外径は1.9mm、先端細径部６
の外径は1.0mm程度が望ましい。 That is, a short metal pipe 4 having an outer diameter larger than the inner diameter of the tube body 1 and slightly smaller than the outer diameter of the tube body 1 is press-fitted into the inside of the tip portion 3 to form a bulging portion 5. At the same time, the distal end side is thermoformed to form a narrow distal end portion 6 smaller than the outer diameter of the tube body 1. Thus, the distal end portion 3 has a bulging portion 5 larger than the outer diameter of the tube body 1, and a tip narrow diameter portion 6 smaller than the outer diameter of the tube main body 1 on the distal side of the bulging portion 5, respectively. It is formed.
To give specific dimensions, if the channel inner diameter of the endoscope 7 is 2 mm, the outer diameter of the tube body 1 is 1.6 mm.
mm, the maximum outer diameter of the bulging part 5 is 1.9 mm, the tip narrow diameter part 6
It is desirable that the outer diameter of is approximately 1.0mm.
そこで、この内視鏡用造影剤注入チユーブを用
いて胆管８内に造影剤を注入する場合は、まず第
３図で示すように内視鏡７の先端部分を十二指腸
９に導入する。ついでその内視鏡７のチヤンネル
を通じてチユーブ本体１の先端部３を十二指腸９
内に突き出すとともに、内視鏡７の観察下で操作
し、先端細径部６を十二指腸乳頭部１０の開口に
差し込む。しかして、先端細径部６はその十二指
腸乳頭部１０の開口内に差し込まれるとともに、
膨出部５がその十二指腸乳頭部１０の開口周面に
押し当り、その開口を閉塞することができる。 Therefore, when injecting a contrast medium into the bile duct 8 using this contrast medium injection tube for an endoscope, the distal end portion of the endoscope 7 is first introduced into the duodenum 9 as shown in FIG. Then, the distal end 3 of the tube body 1 is inserted into the duodenum 9 through the channel of the endoscope 7.
While protruding inward, the thin tip portion 6 is inserted into the opening of the duodenal papilla 10 under observation using the endoscope 7. Thus, the narrow tip portion 6 is inserted into the opening of the duodenal papilla 10, and
The bulging portion 5 can press against the circumferential surface of the opening of the duodenal papilla 10 and close the opening.
したがつて、チユーブ本体１を通じて造影剤を
高圧で注入してもその十二指腸乳頭部１０から漏
れ出すことがない。さらに、胆管８内に胆石があ
つても、その奥まで容易に造影剤を圧入すること
ができる。 Therefore, even if the contrast medium is injected at high pressure through the tube body 1, it will not leak out from the duodenal papilla 10. Furthermore, even if there are gallstones in the bile duct 8, the contrast medium can be easily press-fitted deep into the gallstones.
なお、上記金属製パイプ４は先端部３内に確実
に取り付けられるので、使用途中で外れる危険が
全くない。またチユーブ本体１の先端部３に膨出
部５を形成したから、他のチユーブ本体１の部分
は太くならないため、内視鏡７のチヤンネルに挿
通しやすい。つまり、チユーブ本体１の全長につ
き考えると、チヤンネル内径に対して十分な余裕
をとることができる。したがつて、軽く出し入れ
操作を行なうことができる。 Note that since the metal pipe 4 is securely attached within the tip 3, there is no risk of it coming off during use. In addition, since the bulge 5 is formed at the distal end 3 of the tube body 1, other parts of the tube body 1 do not become thick, making it easy to insert the tube body 1 into the channel of the endoscope 7. In other words, when considering the entire length of the tube body 1, a sufficient margin can be provided for the inner diameter of the channel. Therefore, the insertion and removal operations can be performed easily.
以上説明したように本考案はチユーブ本体の先
端部に、そのチユーブ本体の外径より大きな膨出
部と、この膨出部より先端側に上記チユーブ本体
の外径より小さな先端細径部をそれぞれ一体に形
成したものである。したがつて、胆管内にその先
端細径部を挿入すると同時に膨出部でその入口部
分をふさぐことができる。このため造影剤を高圧
で注入しても漏れることがない。つまり、造影剤
を確実に注入することができる。 As explained above, the present invention has a bulge at the tip of the tube body that is larger than the outside diameter of the tube body, and a narrow tip part that is smaller than the outside diameter of the tube body on the distal side of the bulge. It is formed in one piece. Therefore, it is possible to insert the narrow end portion into the bile duct and at the same time close the entrance portion with the swollen portion. Therefore, even if the contrast medium is injected at high pressure, it will not leak. In other words, the contrast medium can be reliably injected.
特に胆石などがあつてもその奥まで注入可能で
ある。また、上記膨出部はそのチユーブ本体の先
端部の内部に、そのチユーブ本体の内径より大き
な外径のパイプを設置することによりチユーブ本
体の外周部分の外径を大きくして形成し、さら
に、その膨出部より先端側にはそのチユーブ本体
の外径より小さな先端細径部を一体に形成したか
ら、上記パイプの外れを確実に防止し、使用時に
体腔内で外れるなどの危険を未然に回避でき、使
用上の安全性を向上できる。 In particular, it is possible to inject deep into gallstones. Further, the bulging portion is formed by increasing the outer diameter of the outer peripheral portion of the tube body by installing a pipe having an outer diameter larger than the inner diameter of the tube body inside the tip portion of the tube body, and further, A narrow diameter part smaller than the outside diameter of the tube body is integrally formed on the distal side of the bulge, which reliably prevents the pipe from coming off and prevents the risk of it coming off inside the body cavity during use. This can be avoided and safety in use can be improved.
第１図は本考案の一実施例を示す全体の側面
図、第２図はその先端部の断面図、第３図はその
実施例の使用状態図である。
１……チユーブ本体、２……ルアーロツク口
金、３……先端部、４……金属製パイプ、５……
膨出部、６……先端細径部、７……内視鏡、８…
…胆管、９……十二指腸、１０……十二指腸乳頭
部。
FIG. 1 is an overall side view showing an embodiment of the present invention, FIG. 2 is a cross-sectional view of its tip, and FIG. 3 is a diagram of the embodiment in use. 1...Tube body, 2...Luer lock cap, 3...Tip, 4...Metal pipe, 5...
Bulging part, 6... Thin diameter part at the tip, 7... Endoscope, 8...
...bile duct, 9...duodenum, 10...duodenal papilla.
Claims (1)
本体の内径より大きい外径を有するパイプを設置
してこのパイプの設置部分に対応したチユーブ本
体の外周部分の外径をチユーブ本体の外径より大
きく形成してなる膨出部を設け、この膨出部より
先端側にはチユーブ本体の外径より小さな先端細
径部を上記膨出部と一体に形成したことを特徴と
する内視鏡用造影剤注入チユーブ。 A pipe having an outer diameter larger than the inner diameter of the tube body is installed inside the tip of the tube body, and the outer diameter of the outer periphery of the tube body corresponding to the installation part of this pipe is made larger than the outer diameter of the tube body. A contrast agent for an endoscope, characterized in that a bulging portion is provided, and a narrow diameter portion at the distal end smaller than the outer diameter of the tube body is formed integrally with the bulging portion on the distal side of the bulging portion. Infusion tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1980013836U JPS6143442Y2 (en) | 1980-02-06 | 1980-02-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1980013836U JPS6143442Y2 (en) | 1980-02-06 | 1980-02-06 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56116003U JPS56116003U (en) | 1981-09-05 |
| JPS6143442Y2 true JPS6143442Y2 (en) | 1986-12-09 |
Family
ID=29610343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1980013836U Expired JPS6143442Y2 (en) | 1980-02-06 | 1980-02-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6143442Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5843401U (en) * | 1981-09-16 | 1983-03-23 | 旭光学工業株式会社 | Contrast tube for endoscope |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5162579A (en) * | 1974-11-19 | 1976-05-31 | Kendall & Co | |
| JPS527183A (en) * | 1975-06-06 | 1977-01-20 | Kendall & Co | Catheter |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5063993U (en) * | 1973-10-09 | 1975-06-10 |
-
1980
- 1980-02-06 JP JP1980013836U patent/JPS6143442Y2/ja not_active Expired
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5162579A (en) * | 1974-11-19 | 1976-05-31 | Kendall & Co | |
| JPS527183A (en) * | 1975-06-06 | 1977-01-20 | Kendall & Co | Catheter |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS56116003U (en) | 1981-09-05 |
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