JPH119683A - Medical drain tube - Google Patents

Medical drain tube

Info

Publication number
JPH119683A
JPH119683A JP9163874A JP16387497A JPH119683A JP H119683 A JPH119683 A JP H119683A JP 9163874 A JP9163874 A JP 9163874A JP 16387497 A JP16387497 A JP 16387497A JP H119683 A JPH119683 A JP H119683A
Authority
JP
Japan
Prior art keywords
storing part
tube
indwelling
inner cavity
drain 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.)
Pending
Application number
JP9163874A
Other languages
Japanese (ja)
Inventor
Fumihiro Umiga
文広 海賀
Yukihiko Sakaguchi
幸彦 坂口
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sumitomo Bakelite Co Ltd
Original Assignee
Sumitomo Bakelite Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sumitomo Bakelite Co Ltd filed Critical Sumitomo Bakelite Co Ltd
Priority to JP9163874A priority Critical patent/JPH119683A/en
Publication of JPH119683A publication Critical patent/JPH119683A/en
Pending legal-status Critical Current

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  • External Artificial Organs (AREA)

Abstract

PROBLEM TO BE SOLVED: To prevent a tube rear end part from being broken by means of low invasion and to improve body fluid draining preformance by providing at least one inner cavity in an in-body storing part and providing a specified number of taper grooves which is extended from the connecting part of an external storing part with the in-body storing part toward the tip of the in-body storing part on the outer surface wall of the inner cavity. SOLUTION: A drain tube 1 is constituted of the external storing part 12 consisting of a straight tube and the in-body storing part 11 which is connected to it. The in-body storing part 11 is provided with a diameter being equal to that of the external storing part 12 and at least one inner cavity is provided. One taper groove 2 is provided on the outer surface wall 5 of the inner cavity. The taper groove is formed in a taper shape where width is gradually extended from the connecting part of the external storing part 12 with the in-body storing part 11 towards the tip of the in-body storing part 11. Besides, a side hole 6 is arranged on the partitioning wall 4 of the inner cavity 3. Absorbing pressure is made to be almost fixed in the in-body storing part 11 by the taper groove by the taper groove 3 and a body fluid is uniformly drained. Moreover, removal resistance is made to be small so that breaking is prevented.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、手術後にその創部
から滲出する血液や体液の排出を行う、ドレーンチュー
ブに関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drain tube for draining blood or body fluid exuding from a wound after surgery.

【0002】[0002]

【従来の技術】ドレーンチューブは、外科用医療用具と
して体液の排出用に多用されており、色々な内外径、断
面構造ないし形状をもった製品が市販されている。従来
のドレーンチューブは、図3に示す形状であるが体液の
貯留部位に挿入した場合はチューブの先端部分及び側孔
部分から体液がチューブ内に流入し、排出される構造に
なっている。これらのチューブの使用に伴う問題点は、
患者の創部が治癒する前に、体組織がチューブの側孔内
へ向かって成長し、側孔が塞がれるだけでなく、チュー
ブの抜去時に体組織が引き裂かれる結果になり、患者に
大きな痛みを与える点にある。
2. Description of the Related Art Drain tubes are widely used as surgical medical devices for discharging body fluids, and products having various inner and outer diameters, cross-sectional structures and shapes are commercially available. The conventional drain tube has a shape shown in FIG. 3, but has a structure in which, when inserted into a body fluid storage site, the body fluid flows into and out of the tube from the distal end portion and the side hole portion of the tube. The problem with using these tubes is that
Before the wound of the patient is healed, the body tissue grows into the side of the tube and not only blocks the side hole, but also tears the body tissue when the tube is removed, resulting in significant pain for the patient. The point is to give.

【0003】これらの対策として、チューブの外側に、
長手方向に均一断面をもつ複数の溝を設け、その溝によ
って体液の排出を行うもの(例えば、特公平2−171
85号公報)が提案されている。これは、図4に示した
ように、留置時に体外に出る部分となる体外留置部(1
2)については円形のストレートチューブとし、体内に
留置される部分となる体内留置部(11)については、
上記のような溝を設けた構造になっている。従って、チ
ューブの長手方向の外面に溝が設けられている構造によ
り、患者の傷の治癒後には痛みを伴うことなく抜去する
ことができる。
[0003] As a countermeasure for these, outside the tube,
One in which a plurality of grooves having a uniform cross section in the longitudinal direction are provided, and the body fluid is discharged by the grooves (for example, Japanese Patent Publication No. 2-171).
No. 85 gazette) has been proposed. This is, as shown in FIG. 4, the extracorporeal detention part (1
For 2), a circular straight tube is used. For the indwelling part (11) that is to be placed in the body,
The structure is provided with the grooves as described above. Therefore, the structure in which the groove is provided on the outer surface in the longitudinal direction of the tube allows the patient to withdraw the wound without healing after healing the wound.

【0004】しかしながら、図3、4いづれのチューブ
も側孔のパターン及び溝幅がチューブ長手方向に後端か
ら先端まで一定であるため、吸引圧が体内留置部のチュ
ーブの後端側から先端部へかけて一定でなく、後端側に
吸引圧がかかり、先端側では吸引圧が低いという現象と
なり、後端側では、過度な吸引による組織の癒着、先端
側から十分な体液の排出ができないという欠点があっ
た。また、抜去時には、図3のチューブは側孔から組織
等が入っていった場合、抜去抵抗は大きいのはもちろ
ん、図4のチューブでも溝幅が一定のため、抜去抵抗が
大きく、体内留置部のチューブ後端部一点に力がかか
り、破断する恐れがあった。
However, in both the tubes shown in FIGS. 3 and 4, the pattern of the side holes and the groove width are constant from the rear end to the front end in the longitudinal direction of the tube. The suction pressure is not constant and the suction pressure is applied to the rear end side, and the suction pressure is low at the front end side, and at the rear end side, tissue adhesion due to excessive suction, sufficient body fluid can not be discharged from the front end side There was a disadvantage. In addition, at the time of withdrawal, when the tissue or the like enters the tube of FIG. 3 through the side hole, not only the removal resistance is large, but also the tube of FIG. 4 has a constant groove width. A force was applied to one point at the rear end of the tube, and the tube could be broken.

【0005】[0005]

【発明が解決しようとする課題】本発明は、従来のこの
ような問題点を解消することを目的とするもので、患者
からの抜去時に体内留置先端部に行くほど抜去抵抗が少
なく低侵襲であり、また、体内留置部のチューブ後端部
の破断の心配がないとともに、先端からも十分な体液排
出を行えるドレーンチューブである。
SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned conventional problems. When the patient is removed from the patient, the removal resistance decreases as the distance to the distal end of the indwelling body decreases and the invasiveness is reduced. In addition, the drain tube does not need to be broken at the rear end of the tube of the indwelling part and can sufficiently discharge the body fluid from the front end.

【0006】[0006]

【課題を解決するための手段】即ち本発明は、ストレー
トチューブからなる体外留置部と、その先端部に接続さ
れ集液部となる体内留置部とで構成されたドレーンチュ
ーブであって、該体内留置部が少なくとも1つの内腔を
持っており、前記各内腔の外面壁に1つ、体外留置部と
体内留置部との接続部から体内留置部の先端に向かって
幅が徐々に広がるテーパー状の溝が設けてある医療用ド
レーンチューブである。
That is, the present invention relates to a drain tube comprising an extracorporeal indwelling part formed of a straight tube and an indwelling part connected to a distal end thereof and serving as a liquid collecting part. The indwelling section has at least one lumen, and one taper is provided on the outer wall of each of the lumens, and a taper whose width gradually increases from the connection between the extracorporeal indwelling section and the indwelling section toward the tip of the indwelling section It is a medical drain tube provided with a groove of a shape.

【0007】[0007]

【発明の実施の形態】以下、図面をもとに本発明につい
て詳細に説明する。図1は本発明によるドレーンチュー
ブの一実施例を示す図で、図2は他の実施例を示す先端
正面図である。図1の如く本発明のドレーンチューブ
(1)はストレートチューブからなる体外留置部(1
2)と、その先端部に接続され体液を集める集液部とな
る体内留置部(11)とで構成されている。体内留置部
(11)は、外径が体外留置部(12)のストレートチ
ューブに等しく、内腔(3)の外面壁(5)には体外留
置部(12)と体内留置部(11)との接続部から体内
留置部(11)の先端に向かって幅が徐々に広がるテー
パー状の溝(2)を設けると共に、内腔(3)どうしを
隔てた隔壁(4)に1個もしくは複数個の側孔(6)が
設けられている。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the drawings. FIG. 1 is a view showing one embodiment of a drain tube according to the present invention, and FIG. 2 is a front elevational view showing another embodiment. As shown in FIG. 1, the drain tube (1) of the present invention comprises an extracorporeal indwelling part (1) composed of a straight tube.
2) and an indwelling unit (11) connected to the distal end and serving as a liquid collecting unit for collecting body fluid. The indwelling part (11) has an outer diameter equal to the straight tube of the extracorporeal detention part (12), and the extracorporeal detention part (12) and the indwelling part (11) are provided on the outer wall (5) of the lumen (3). And a tapered groove (2) whose width gradually increases from the connection part toward the tip of the indwelling part (11), and one or more grooves are provided in the partition wall (4) separating the lumens (3). Side hole (6) is provided.

【0008】ストレートチューブからなる体外留置部
(12)は大きな1つの内腔であって体内留置部(1
1)の複数の内腔(3)を集約する構造としてもよいが
体内留置部(11)の断面形状がそのまま体外留置部
(12)までわたる形状の場合、体外留置部(12)の
補強となりチューブの折れ曲がりや破断の防止という効
果が得られるのでより望ましい。テーパー状の溝(2)
について詳しく述べると、実使用時、体外留置部(1
2)後端部から吸引圧をかけるが、その時、テーパー状
の溝(2)幅は、チューブ長手方向に後端から先端にか
けて徐々に開いているため、吸引圧が体内留置部(1
1)のチューブ後端部から先端部にかけ、ほぼ一定とな
りチューブのどの位置でも均等に体液排出を行うことが
できる。また、抜去時には、体内留置部(11)に組織
片等が詰まっていても、テーパー状の溝(2)形状のた
め、抜去抵抗が小さく、破断の恐れもなく、また、患者
の痛みを伴うことなく抜去できる。
[0008] The extracorporeal indwelling section (12) made of a straight tube is one large lumen,
The structure in which the plurality of lumens (3) of (1) may be integrated may be used. However, in the case where the cross-sectional shape of the indwelling part (11) extends directly to the indwelling part (12), the extracorporeal part (12) is reinforced. This is more preferable because the effect of preventing the tube from being bent or broken can be obtained. Tapered groove (2)
In detail, during actual use, the extracorporeal detention unit (1
2) The suction pressure is applied from the rear end. At this time, the width of the tapered groove (2) gradually increases from the rear end to the front end in the longitudinal direction of the tube.
From the rear end of the tube to the front end in 1), the fluid becomes substantially constant, and the body fluid can be uniformly discharged at any position of the tube. Further, at the time of removal, even if a tissue piece or the like is clogged in the indwelling part (11), the removal resistance is small due to the shape of the tapered groove (2), there is no fear of breakage, and the pain of the patient is accompanied. Can be removed without the need.

【0009】更に、図1のように体内留置部(11)が
複数の内腔(3)の構造とした場合、内腔(3)どうし
を隔てた隔壁(4)に設置する側孔(6)はチューブが
引っ張られた際に力が集中するのを分散させるため、チ
ューブ全長にわたりできるだけ多く設置されていること
が安全で望ましい。また、仮に1つの内腔(3)に詰ま
りが発生しても、その内腔(3)通路は他の内腔(3)
へバイパスされるため効率的に排出を行うことができ、
隔壁(4)に側孔(6)を設置することは望ましい。
Further, when the indwelling part (11) has a structure of a plurality of lumens (3) as shown in FIG. 1, a side hole (6) installed in a partition wall (4) separating the lumens (3). ) Is safe and desirable to be installed as much as possible over the entire length of the tube in order to distribute the concentration of forces when the tube is pulled. Also, even if one lumen (3) is clogged, the passage of that lumen (3) will be the other lumen (3).
Can be efficiently discharged because it is bypassed to
It is desirable to provide a side hole (6) in the partition (4).

【0010】本発明によるドレーンチューブ(1)の材
質としては、軟質塩化ビニル樹脂、シリコーンゴム、ウ
レタン樹脂など、医療用として一般に使用されているも
のでよく、特に限定されるものではない。チューブの形
状は図2の(a)、(b)に示すように円形の他、
(c)のように楕円形や長円形であっても良く、体内留
置部(11)と体外留置部(12)を別々に成形して、
接着、組立しても良いが、一体成形とする方が、内外面
とも接続部における段差をなくすことが出来、またコス
ト的にも有利である。
The material of the drain tube (1) according to the present invention may be a material generally used for medical use, such as soft vinyl chloride resin, silicone rubber, urethane resin, etc., and is not particularly limited. The shape of the tube is circular as shown in FIGS.
It may be oval or elliptical as in (c), and the indwelling part (11) and the extracorporeal holding part (12) are separately formed,
Adhesion and assembling may be performed, but it is more advantageous to integrally mold the inner and outer surfaces since the step at the connection portion can be eliminated, and the cost can be reduced.

【0011】また、テーパー状の溝(2)の加工方法と
しては、チューブの押出成形後に刃物等により後加工し
ても良いが、押出成形中に金型のチューブ出口付近に先
端が円錐の釘状で、チューブに対して垂直方向に可動す
るものを取付加工施すのがコスト的に有利である。更
に、ドレーンチューブ(1)には、使用目的に応じて、
X線不透過材料による造影ラインを設けたり、体外留置
部(12)の末端に吸引器等と接続するためのコネクタ
ーを設け、あるいは体内穿刺用の尖刀針を取り外し可能
に付設しても良い。
As a method of processing the tapered groove (2), post-processing may be performed with a cutting tool or the like after the extrusion of the tube, but a nail having a conical tip near the exit of the tube of the mold during the extrusion. It is advantageous in terms of cost to attach a tube that is vertically movable with respect to the tube. Furthermore, the drain tube (1) has a
A contrast line made of an X-ray opaque material may be provided, a connector for connecting to an aspirator or the like may be provided at the end of the extracorporeal indwelling section (12), or a sharp needle for puncturing the body may be removably attached.

【0012】次に、本発明のドレーンチューブ(1)の
使用方法について述べる。患者の体内に留置されたドレ
ーンチューブ(1)は末端に接続された吸引器の吸引圧
により、体内に貯留した体液等がチューブ先端とテーパ
ー状の溝(2)部によりチューブ内に吸引され体外に排
出される。創部が治癒するとドレーンチューブ(1)は
抜去することになるが、このとき図3、4の従来のドレ
ーンチューブ(21)、(31)は体内留置部(11)
の後方の側孔(22)、及び溝(32)の体内留置部
(11)のチューブ後端部一点に力がかかり、破断する
恐れがあったが、本発明のドレーンチューブ(1)は体
内留置部(11)先端に行くほど抜去抵抗が少なく、破
断の心配なく操作が出来る。
Next, a method of using the drain tube (1) of the present invention will be described. The drain tube (1) indwelled in the patient's body is sucked into the tube by the suction pressure of the suction device connected to the distal end, and the bodily fluid and the like stored in the body are sucked into the tube by the tube tip and the tapered groove (2) part. Is discharged. When the wound is healed, the drain tube (1) is withdrawn. At this time, the conventional drain tubes (21) and (31) shown in FIGS.
A force may be applied to a point on the rear end of the tube of the indwelling part (11) of the body in the side hole (22) and the groove (32) at the rear of the body, and the drain tube (1) of the present invention may be broken. As the distance to the tip of the indwelling section (11) decreases, the withdrawal resistance decreases, and the operation can be performed without fear of breakage.

【0013】[0013]

【発明の効果】以上に述べた如く、本発明によるドレー
ンチューブ(1)を用いれば、吸引圧が先端までほぼ一
定に伝わり、先端及びテーパー状の溝(2)部から十分
に体液排出を十分に行うことが出来、また、抜去時も、
体内留置部(11)先端に行くほど抜去抵抗が少なく、
破断の心配がない。従って安全・確実なドレーンチュー
ブとしてきわめて有用である。
As described above, when the drain tube (1) according to the present invention is used, the suction pressure is transmitted almost uniformly to the tip, and the body fluid is sufficiently discharged from the tip and the tapered groove (2). At the time of removal,
Withdrawal resistance decreases as it goes to the tip of the indwelling part (11),
There is no worry about breaking. Therefore, it is extremely useful as a safe and reliable drain tube.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明の一実施例となるドレーンチューブを示
す図で、(a)は先端正面図と側面図、(b)はA−
A’断面図である。
1A and 1B are diagrams showing a drain tube according to an embodiment of the present invention, wherein FIG. 1A is a front view and a side view of a distal end, and FIG.
It is A 'sectional drawing.

【図2】本発明の他の3種類の実施例を示す図である。FIG. 2 is a diagram showing three other embodiments of the present invention.

【図3】従来の側孔付きドレーンチューブを示す図で、
(a)は先端正面図、(b)は側面図である。
FIG. 3 is a view showing a conventional drain tube with side holes;
(A) is a front view of the tip, and (b) is a side view.

【図4】従来の溝付のドレーンチューブを示す図で、
(a)は先端正面図、(b)は側面図である。
FIG. 4 is a view showing a conventional grooved drain tube;
(A) is a front view of the tip, and (b) is a side view.

【符号の説明】[Explanation of symbols]

1 ドレーンチューブ 2 テーパー状の溝 3 内腔 4 隔壁 5 外面壁 6 側孔 11 体内留置部 12 体外留置部 21 側孔付ドレーンチューブ 22 側孔 23 内腔 31 溝付ドレーンチューブ 32 溝 33 内腔 DESCRIPTION OF SYMBOLS 1 Drain tube 2 Tapered groove 3 Lumen 4 Partition wall 5 Outer wall 6 Side hole 11 Indwelling part 12 Outside detention part 21 Drain tube with side hole 22 Side hole 23 Lumen 31 Drain tube with groove 32 Groove 33 Lumen

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 ストレートチューブからなる体外留置部
と、その先端部に接続され集液部となる体内留置部とで
構成されたドレーンチューブであって、該体内留置部が
少なくとも1つの内腔を持っており、前記各内腔の外面
壁に1つ、体外留置部と体内留置部との接続部から体内
留置部の先端に向かって幅が徐々に広がるテーパー状の
溝が設けてあることを特徴とする医療用ドレーンチュー
ブ。
1. A drain tube comprising an extracorporeal indwelling part made of a straight tube and an indwelling part connected to a distal end thereof and serving as a liquid collecting part, wherein the indwelling part has at least one lumen. The outer wall of each of the lumens is provided with one tapered groove whose width gradually increases from the connection between the extracorporeal indwelling unit and the indwelling unit to the tip of the indwelling unit. Characteristic medical drain tube.
JP9163874A 1997-06-20 1997-06-20 Medical drain tube Pending JPH119683A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9163874A JPH119683A (en) 1997-06-20 1997-06-20 Medical drain tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9163874A JPH119683A (en) 1997-06-20 1997-06-20 Medical drain tube

Publications (1)

Publication Number Publication Date
JPH119683A true JPH119683A (en) 1999-01-19

Family

ID=15782428

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9163874A Pending JPH119683A (en) 1997-06-20 1997-06-20 Medical drain tube

Country Status (1)

Country Link
JP (1) JPH119683A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004012604A1 (en) * 2002-08-01 2004-02-12 Kaneka Corporation Suction catheter

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004012604A1 (en) * 2002-08-01 2004-02-12 Kaneka Corporation Suction catheter
JP2004065326A (en) * 2002-08-01 2004-03-04 Kanegafuchi Chem Ind Co Ltd Suction catheter
US7244250B2 (en) 2002-08-01 2007-07-17 Kaneka Corporation Suction catheter

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