JP2556694B2 - Multi-cavity catheter - Google Patents
Multi-cavity catheterInfo
- Publication number
- JP2556694B2 JP2556694B2 JP62032871A JP3287187A JP2556694B2 JP 2556694 B2 JP2556694 B2 JP 2556694B2 JP 62032871 A JP62032871 A JP 62032871A JP 3287187 A JP3287187 A JP 3287187A JP 2556694 B2 JP2556694 B2 JP 2556694B2
- Authority
- JP
- Japan
- Prior art keywords
- branch pipe
- sub
- branch
- lumen catheter
- lumen
- 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 - Fee Related
Links
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Description
【発明の詳細な説明】 ［産業上の利用分野］ 本発明は生体に連続的に維持栄養液を投与すると共に
間欠的に薬液を投与し得るように血管内に留置する多腔
式カテーテルの改良に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention is an improvement of a multi-lumen catheter for continuously administering a maintenance nutrient solution to a living body and indwelling in a blood vessel so that a medicinal solution can be intermittently administered. Regarding
［従来技術およびその問題点］ このような多腔式カテーテルは、たとえば、特開昭53
−51692号に示されているように、公知である。従来の
多腔式カテーテルでは、一本の管本体内に複数のそれぞ
れ独立し、互いに連絡のない内腔が設けてあり、それぞ
れの内腔を利用して栄養液を連続的に投与すると共に薬
液を間欠的に投与できるようになっている。栄養液を投
与するのに用いている内腔は常に流れが存在しているの
で、そこに血液が流入することはないが、間欠投与に使
用している内腔では、しばしば投与を中断している間に
その中に血液が流入してそこで凝固し、その内腔を閉塞
してしまうことがある。[Prior Art and its Problems] Such a multi-lumen catheter is disclosed in, for example, Japanese Patent Laid-Open No.
It is known, as shown in -51692. In a conventional multi-lumen catheter, a plurality of independent lumens that do not communicate with each other are provided in a single tube body, and the nutrient solution is continuously administered and the medicinal solution is utilized using each lumen. Can be administered intermittently. There is always a flow in the lumen used to administer the nutrient solution, so blood does not flow into it, but in the lumen used for intermittent administration, administration is often interrupted. During that time, blood may flow into it and coagulate there, obstructing its lumen.
［問題点を解決する手段］ 本発明の目的は連続投与に使用していない枝管を間欠
投与に使用する時を除いて連続投与に使用している枝管
に連絡し、間欠投与以外の時にすべての枝管に連続的に
供給液体が流れるようにした弁手段を有する多腔式カテ
ーテルを提供することにある。[Means for Solving Problems] An object of the present invention is to communicate with a branch pipe used for continuous administration except when a branch pipe that is not used for continuous administration is used for intermittent administration, It is an object of the present invention to provide a multi-lumen catheter having valve means that allows a supply liquid to continuously flow to all branch vessels.
この目的を達成すべく、本発明は複数の内腔を構成す
る複数の枝管を有する一本の管本体を包含する多腔式カ
テーテルにおいて、連続的に外部から体内に液体を供給
するのに使用する主枝管を他の少なくとも一本の副枝管
に接続し、この接続した部分に主枝管とこの副枝管の手
元側の内腔との連通を断つと共に主枝管とこの副枝管の
先端側内腔とを連通させることができ、さらに、主枝管
と前記副枝管との連絡を完全に断つことができ、このと
きに、この副枝管を通して流体の体内への供給を可能と
する弁手段を設けたもとを特徴とする多腔式カテーテル
を提供する。In order to achieve this object, the present invention provides a multi-lumen catheter including a single tube body having a plurality of branch tubes forming a plurality of lumens, for continuously supplying liquid to the body from the outside. Connect the main branch pipe to be used to at least one other sub-branch pipe, and disconnect the main branch pipe from the lumen on the proximal side of this sub-branch pipe at this connected portion, and at the same time connect the main branch pipe and this sub-branch pipe. The distal end lumen of the branch pipe can be communicated with each other, and the connection between the main branch pipe and the sub branch pipe can be completely cut off. Provided is a multi-lumen catheter which is characterized by having a valve means capable of supplying.
［作用および効果］ 本発明によれば、前記弁手段はそれを操作して主枝管
を対応する副枝管に連通させることができ、その場合、
連続投与されている液体がその副枝管にも連続的に流
れ、そこから体内に流入するので、副枝管の開口から薬
液を投与していないときでも血液がこの副枝管に流入す
ることがなく、血液の凝固による閉塞を防止できる。[Operation and Effect] According to the present invention, the valve means can operate the valve means to connect the main branch pipe to the corresponding sub branch pipe, in which case,
Since the liquid that is continuously administered also flows into the sub-branch continuously and then flows into the body, blood may flow into this sub-branch even when the drug solution is not administered through the opening of the sub-branch. It is possible to prevent blockage due to blood coagulation.
［実施例］ 以下、添付図面を参照しながら本発明を実施例によっ
て説明する。[Examples] Hereinafter, the present invention will be described by examples with reference to the accompanying drawings.
まず第１図を参照して、ここに示す本発明による多腔
式カテーテルは２つの枝管10、12を有し、これらの枝管
は一本の管本体14に接続し、まとめてある。図では、２
つの枝管を２本だけ示しているが、枝管の本数がもっと
多くてもよいことは了解されたい。Referring first to FIG. 1, the multi-lumen catheter according to the present invention shown herein has two branch tubes 10, 12 which are connected and grouped together into a single tube body 14. In the figure, 2
Although only two branch tubes are shown, it should be understood that more branch tubes may be used.
図示実施例では、第１図の右に示す枝管10が連続的に
液体、たとえば、維持栄養液を投与するのに使用する主
枝管とし、左の枝管12が間欠的に薬液を投与するのに使
用する副枝管とする。なお、通常維持栄養液は投与され
る量が他の薬液に比べて多いため、主枝管10の流れ面積
は副枝管12の流れ面積よりも大きいと好ましい。第１図
でわかるように、両方の枝管10、12共、使用していない
ときには、それぞれ、キャップ16、18が開口端に取り付
けてある。In the illustrated embodiment, the branch pipe 10 shown on the right side of FIG. 1 is the main branch pipe used to continuously administer a liquid, for example, a maintenance nutrient solution, and the left branch pipe 12 intermittently administers the liquid medicine. Use it as a secondary branch pipe to be used. In addition, since the administration amount of the normal maintenance nutrient solution is larger than that of other medicinal solutions, it is preferable that the flow area of the main branch pipe 10 is larger than that of the sub branch pipe 12. As can be seen in FIG. 1, both branch tubes 10, 12 have caps 16, 18 attached to their open ends, respectively, when not in use.
図示実施例では、副枝管12の中間部に三方活栓20の１
つの開口端20Aが取り付けてあり、この三方活栓20の、
図で見て中間の開口端20Bは主枝管10の中間にある開口
部に接続してある。三方活栓20の残りの開口端20Cが副
枝管の手元側開口に連通させてあり、この開口が薬液等
の間欠投与のときに使用される。In the illustrated embodiment, one side of the three-way stopcock 20 is provided in the middle portion of the auxiliary branch pipe 12.
Two open ends 20A are attached to this three-way stopcock 20,
In the figure, the middle open end 20B is connected to the opening in the middle of the main branch pipe 10. The remaining open end 20C of the three-way stopcock 20 communicates with the proximal side opening of the secondary branch pipe, and this opening is used for intermittent administration of a drug solution or the like.
三方活栓20を第２図に示す位置に操作したときには、
破線で示すように、主枝管10と副枝管12とを連絡し、三
方活栓20の間欠投与用開口端20Cを副枝管12から遮断す
る。したがって、主枝管10を通して連続的に投与されて
いる栄養液等の液体は主枝管10を流れると共に副枝管12
にも流入し、この副枝管12への人体からの血液の流入が
防止される。When the three-way stopcock 20 is operated to the position shown in Fig. 2,
As shown by the broken line, the main branch pipe 10 and the sub branch pipe 12 are connected to each other, and the intermittent administration open end 20C of the three-way stopcock 20 is blocked from the sub branch pipe 12. Therefore, the liquid such as the nutrient solution continuously administered through the main branch pipe 10 flows through the main branch pipe 10 and the sub branch pipe 12
Also, the inflow of blood from the human body into the secondary branch pipe 12 is prevented.
一方、第３図に示す位置に三方活栓20が位置するとき
には、破線でわかるように、主枝管10と副枝管12の連通
は断たれ、三方活栓20の間欠投与用開口端20Cが副枝管1
2と連絡し、ここを通して薬液等の液体を投与すること
ができる。On the other hand, when the three-way stopcock 20 is located at the position shown in FIG. 3, the communication between the main branch pipe 10 and the sub-branch pipe 12 is cut off as shown by the broken line, and the open end 20C for intermittent administration of the three-way stopcock 20 is subordinated. Branch 1
It is possible to administer a liquid such as a medicinal solution through contact with 2.
こうして、本発明は副枝管内で血液が凝固することに
よる閉塞を防止できる多腔式カテーテルを提供すること
ができる。Thus, the present invention can provide a multi-lumen catheter capable of preventing blockage due to blood coagulation in the subbranch.
図示実施例では、三方活栓を使用しているが、主枝管
と副枝管との連絡を随時に行なえ、主枝管との連絡がな
いときには副枝管にその本来の機能を果させることがで
きるならば任意の弁構造を使用できることは了解された
い。また、副枝管が複数の場合でも、それぞれの副枝管
を本発明の技術概念を達成できる弁構造によって主枝管
に接続しても同様の効果を得ることができることも当業
者には明らかであろう。In the illustrated embodiment, the three-way stopcock is used, but the main branch pipe and the sub branch pipe can be connected at any time, and the sub branch pipe can perform its original function when there is no communication with the main branch pipe. It should be appreciated that any valve structure can be used if It is also apparent to those skilled in the art that even if there are a plurality of sub-branch pipes, the same effect can be obtained even if each sub-branch pipe is connected to the main branch pipe by a valve structure capable of achieving the technical concept of the present invention. Will.
第１図は本発明による多腔式カテーテルの側面図であ
る。 第２図は第１図に示す三方活栓の或る位置を示す図であ
る。 第３図は第１図に示す三方活栓の別の位置を示す図であ
る。 図面において、10……主枝管、12……副枝管、14……管
本体、16、18……キャップ、20……三方活栓FIG. 1 is a side view of a multi-lumen catheter according to the present invention. FIG. 2 is a view showing a position of the three-way stopcock shown in FIG. FIG. 3 is a view showing another position of the three-way stopcock shown in FIG. In the drawing, 10 ... Main branch pipe, 12 ... Sub branch pipe, 14 ... Pipe body, 16, 18 ... Cap, 20 ... Three-way stopcock
Claims (4)
一本の管本体を包含する多腔式カテーテルにおいて、連
続的に外部から体内に液体を供給するのに使用する主枝
管を他の少なくとも一本の副枝管に接続し、この接続し
た部分に主枝管とこの副枝管の手元側の内腔との連通を
断ちかつ副枝管の先端側内腔とを連通させることを可能
とし、さらに又主枝管と副枝管との連通を断ちかつこの
とき、この副枝管を通して液体の体内への供給を可能と
する弁手段を包含することを特徴とする多腔式カテーテ
ル。1. A multi-lumen catheter including a single tube body having a plurality of branch tubes forming a plurality of lumens, which is a main branch tube used for continuously supplying a liquid into the body from the outside. To at least one other sub-branch pipe, and disconnecting the connection between the main branch pipe and the lumen on the proximal side of this sub-branch, and connecting the tip-side lumen of the sub-branch pipe to this connected portion. And a valve means for disconnecting the communication between the main branch pipe and the sub-branch pipe and allowing the liquid to be supplied into the body through the sub-branch pipe at this time. Lumen catheter.
テルにおいて、前記主枝管が複数の枝管のうちの最大の
流れ面積を有し、前記副枝管が複数の枝管のうち最小の
流れ面積を有することを特徴とする多腔式カテーテル。2. The multi-lumen catheter according to claim 1, wherein the main branch pipe has the largest flow area of the plurality of branch pipes, and the sub branch pipe has a plurality of branch pipes. A multi-lumen catheter having the smallest flow area.
多腔式カテーテルにおいて、前記弁手段が三方活栓であ
ることを特徴とする多腔式カテーテル。3. The multi-lumen catheter according to claim 1 or 2, wherein the valve means is a three-way stopcock.
テルにおいて、前記三方活栓が前記副枝管に設けてある
ことを特徴とする多腔式カテーテル。4. The multi-lumen catheter according to claim 3, wherein the three-way stopcock is provided in the sub-branch tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62032871A JP2556694B2 (en) | 1987-02-16 | 1987-02-16 | Multi-cavity catheter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62032871A JP2556694B2 (en) | 1987-02-16 | 1987-02-16 | Multi-cavity catheter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63200771A JPS63200771A (en) | 1988-08-19 |
| JP2556694B2 true JP2556694B2 (en) | 1996-11-20 |
Family
ID=12370928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62032871A Expired - Fee Related JP2556694B2 (en) | 1987-02-16 | 1987-02-16 | Multi-cavity catheter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2556694B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11992681B2 (en) | 2020-11-20 | 2024-05-28 | Phagenesis Limited | Devices, systems, and methods for treating disease using electrical stimulation |
| US12059537B2 (en) | 2019-04-11 | 2024-08-13 | Phagenesis Limited | Safety clasp and garment clip |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0419238D0 (en) | 2004-08-28 | 2004-09-29 | Univ Manchester | Dysphagia recovery |
| GB2532044A (en) | 2014-11-06 | 2016-05-11 | Phagenesis Ltd | Catheter for recovery of dysphagia |
| WO2017076845A1 (en) * | 2015-11-05 | 2017-05-11 | Fresenius Kabi Deutschland Gmbh | Tube set for administering a medical fluid to a patient |
-
1987
- 1987-02-16 JP JP62032871A patent/JP2556694B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US12059537B2 (en) | 2019-04-11 | 2024-08-13 | Phagenesis Limited | Safety clasp and garment clip |
| US11992681B2 (en) | 2020-11-20 | 2024-05-28 | Phagenesis Limited | Devices, systems, and methods for treating disease using electrical stimulation |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63200771A (en) | 1988-08-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |