JPH0587264B2 - - Google Patents
Info
- Publication number
- JPH0587264B2 JPH0587264B2 JP62313047A JP31304787A JPH0587264B2 JP H0587264 B2 JPH0587264 B2 JP H0587264B2 JP 62313047 A JP62313047 A JP 62313047A JP 31304787 A JP31304787 A JP 31304787A JP H0587264 B2 JPH0587264 B2 JP H0587264B2
- Authority
- JP
- Japan
- Prior art keywords
- injection port
- mixed injection
- tube
- stopper
- liquid
- 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
- 239000007924 injection Substances 0.000 claims description 71
- 238000002347 injection Methods 0.000 claims description 71
- 238000001802 infusion Methods 0.000 claims description 38
- 239000007788 liquid Substances 0.000 claims description 27
- 238000011144 upstream manufacturing Methods 0.000 claims description 4
- 239000011347 resin Substances 0.000 claims 2
- 229920005989 resin Polymers 0.000 claims 2
- 230000002093 peripheral effect Effects 0.000 claims 1
- 230000000717 retained effect Effects 0.000 claims 1
- 229920001971 elastomer Polymers 0.000 description 39
- 239000000243 solution Substances 0.000 description 10
- 239000003814 drug Substances 0.000 description 9
- 230000037452 priming Effects 0.000 description 9
- 229940079593 drug Drugs 0.000 description 8
- 239000002504 physiological saline solution Substances 0.000 description 6
- 239000002904 solvent Substances 0.000 description 5
- 239000003978 infusion fluid Substances 0.000 description 4
- 239000008155 medical solution Substances 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 210000004204 blood vessel Anatomy 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001647 drug administration Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001990 intravenous administration Methods 0.000 description 1
- 229920003049 isoprene rubber Polymers 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Description
〔産業上の利用分野〕
本発明は、輸液投与の際、輸液ラインに薬液を
一時的に混注する場合若しくは長時間混注する場
合に用いられる液体混注器具に関する。
〔従来の技術〕
従来、輸液投与途中での一時的混注、若しくは
長時間混注は、簡便な方法として、輸液ラインの
静脈穿刺側で混注可能ゴム管をセツトし、この混
注可能ゴム管に混注針を刺通して行つていた。
又、輸液投与の際、混注可能ゴム管を使用する
簡便な方法では対応しづらい場合は、上流側に混
注口を下流側に流出口を夫々有する管体に枝管を
設けてなるト字管と、該ト字管の混注口に着脱自
在に嵌着すると共に刺通針にて刺通可能な混注口
栓とから成る液体混注器具、あるいは、この液体
混注器具から混注口栓が脱落するのを防止するた
めに栓保持用キヤツプが溶剤接着された液体混注
器具が使用されていた。
〔発明が解決しようとする問題点〕
しかしながら、上述の混注可能ゴム管では、こ
れの刺通部を混注針で刺通する時に、刺通部ばか
りか他の部位まで刺通してしまい不具合が生じ
る。又、長時間混注の場合は、種々の原因により
混注針が抜け混注輸液が漏れたり、混注可能ゴム
管とラインチユーブとの嵌合部から液漏れした
り、混注可能ゴム管がラインチユーブから外れた
りする。
又、混注可能ゴム管の種々の不具合を解消した
液体混注器具であつても、混注口側の管体の内径
が小さいため、使用前のプライミング時混注口側
の空気の除去が不充分となり、残つた空気が輸液
ラインから静脈針を通り患者の血管内へ入り、重
大な事故が生ずる虞がある。更に、混注口栓の脱
落を防止する栓保持用キヤツプのないものでは、
輸液ラインの圧力変動などにより、混注口栓が管
体の混注口から外れ輸液が流出してしまう。栓保
持用キヤツプがあるものであつても、管体の混注
口近傍にこの栓保持用キヤツプを溶剤接着してい
るため、この溶剤が輸液ライン中に入り、輸液時
患者の血液内へ入る虞があつた。
本発明は上記事情に鑑みてなされたもので、プ
ライミング時空気が混注口側の管体に残存せず、
且つ、使用時に混注液の液漏れ及び混注口栓の脱
落を溶剤接着することなく、完全に防止すること
が可能な液体混注器具を提供することを目的とす
る。
〔問題を解決するための手段〕
上記問題点を解決するため、本発明の液体混注
器具は、上流側に混注口を下流側に流出口を夫々
有する管体の途中に枝管を設けてなるト字管と、
該ト字管の混注口に設けられると共に刺通針にて
刺通可能な混注口栓とから成る液体混注器具にお
いて、前記混注口側の管体の内径を４mm以上とし
かつ前記枝管の内径の２倍以上としたものであ
る。
〔作 用〕
上記構成によれば、プライミングは、ト字管の
枝管を傾斜させ、枝管から輸液剤を注入て行う
が、混注口側の管体の内径が４mm以上かつ枝管の
内径の２倍以上であるため、枝管から流入した輸
液剤は自重で混注口側の管体に流れ落ち、空気を
押しのけ混注口側を満たす。又、栓保持用キヤツ
プを設けた場合は、混注口栓を保持して混注口側
の管体の外周面に設けられた係止部に、栓保持用
キヤツプのストツパ部を係止するから、混注口か
ら混注口栓が脱落することはない。
〔実施例〕
以下、本発明の実施例を添付図面に基づいて詳
述する。
第１図は、本発明の液体混注器具の断面図であ
る。同図において、１は液体混注器具を示し、該
液体混注器具１は、上流側に混注口２を下流側に
流出口３を夫々有する管体４と該管体４に枝管５
を設けてなるト字管Ａと、該ト字管Ａの混注口２
に着脱自在に嵌着すると共に刺通針にて刺通可能
なゴム栓（混注口栓）６と、該ゴム栓６を保持す
ると共に混注口２からの脱落を防止するゴム栓保
持用キヤツプ（栓保持用キヤツプ）７とから構成
されている。
前記ト字管Ａは、ポリカーボネイトなどの合成
樹脂にて構成され、ト字管Ａの前記管体４が、前
記混注口２から流出口３に向つて、順次大径部４
ａ、レジユーサ部４ｂ、小径部４ｃが同心状に形
成されてなる。尚、管体４の断面は、通常真円と
されるが、これに拘束されることなく、例えば楕
円、角形であつても良い。そして、この管体４の
大径部４ａには前記枝管５が設けられ、この大径
部４ａの内径は少なくとも４mm以上かつ枝管５の
内径の２倍以上（管体４の大径部４ａの内径／枝
管５の内径≧２）に設定されるが、好ましくは大
径部４ａの内径は５mm以上ある方が良い。すなわ
ち、大径部４ａの内径を少なくとも４mm以上かつ
枝管５の内径の２倍以上としたのは、枝管５から
のプライミング時、大径部４ａにおける枝管５の
開口５ａと前記混注口２に嵌合されたゴム栓６と
の間の空間Ｓに空気が貯らないようにするためで
ある。
前記ゴム栓６は、イソプレンゴムなどの天然ゴ
ムによつて構成されている。管体４の混注口２か
ら液漏れがないようにするため、ゴム栓６には、
混注口２側の大径部４ａの端部を嵌めることが出
来るように、円形状の溝６ａが刻まれている。
又、ゴム栓６には、これを刺通針にて刺通し易く
するため、球状の凹部６ｂが設けられている。こ
のように形成されたゴム栓６は、管体４の混注口
２側の大径部４ａに嵌着されている。
前記ゴム栓保持用キヤツプ７は、コツプ状をな
し、ポリプロピレン等の合成樹脂により構成され
ている。ゴム栓保持用キヤツプ７の頂部７ａに
は、刺通針がゴム栓６を刺通出来るように、前記
管体４の大径部４ａの内径と略同径の孔７ｂが穿
けられている。又、ゴム栓保持用キヤツプ７の縁
部７ｃには内方に突出したストツパ部８が設けら
れている。このストツパ部８は、管体４の大径部
４ａの外周面に設けられた環状の突起部（係止
部）９に係止するから、ゴム栓保持用キヤツプ７
は、ゴム栓６が管体４の混注口２に強固に嵌着さ
れた状態でゴム栓６を保持することになる。従つ
て、この係止状態が外れない限り、若しくは、想
像を絶する外力がかからない限り、ゴム栓６が管
体４の混注口２から外れることはない。
尚、第２図に示すように、ストツパ部８及び突
起部９に傾斜面８ａ，９ａが夫々あるのは、ゴム
栓保持用キヤツプ７を管体４に係止する際（矢線
Ｂ方向に力を加える際）、ゴム栓保持用キヤツプ
７の縁部７ｃが外方に広がつて、管体４に係止し
易くするためである。
次に、上記構成になる液体混注器具の作用につ
いて述べる。
まず、使用前に液体混注器具１のプライミング
を行う。このプライミングは、ト字管Ａの枝管５
を下方に向け、ト字管Ａの流出口３を上側に混注
口２を下側になるようにト字管Ａを傾斜させる。
次に、枝管５から生理食塩水をゆるやかに注入す
る。枝管５に注入された生理食塩水は、第３図ａ
に示すように開口５ａで滴を作り、この滴は次第
に大きくなり、開口５ａから自重で流れ落ちる。
そして、生理食塩水は、管体４の混注口２側の内
径が４mm以上かつ枝管５の内径の２倍以上、好ま
しくはその径は５mm以上と充分に大きいと、第３
図ｂに示すように、下側の混注口２側の空間Ｓに
流れ落ち、空気を押しのけ混注口２側を満たした
のち、第３図ｃに示すように、上側の流出口３か
ら流出する。このようにして、プライミングは終
了する。この際、管体４の混注口２側の内径が４
mmより小さくかつ枝管５の内径の２倍未満である
と、表面張力により生理食塩水は、混注口２側の
空間Ｓに空気を押しのけることなく、上側の流出
口３から流出する。このため、管体４の混注口２
側に空気が残留することになる。
プライミング操作の終了後、生理食塩水を必要
とする薬液に切換え、薬液投与を行う。この際、
必要に応じて第４図に示すように、他の薬液を混
注するため刺通針１０にてゴム栓６を刺通して、
他の薬液を混注口２から混注する。そして、混注
された薬液は、チユーブ１１、穿刺針１２を介し
て患者Ｍの血管に入り薬液投与が行われる。
又、他の薬液による混注終了後、更に別の薬液
を混注する場合、他の薬液の刺通針１０をゴム栓
６から引き抜き、別の薬液の刺通針１３をゴム栓
６に刺通して別の薬液を混注口２から混注する。
この操作中、ゴム栓６がゴム栓保持用キヤツプ７
にて保持され、ゴム栓保持用キヤツプ７のストツ
パ部８が管体４の突起部９に係止しているから、
刺通針１０，１３を刺通したり引き抜く時、若し
くは、輸液時の内圧によつてゴム栓６が混注口２
から外れることがない。すなわち、ゴム栓保持用
キヤツプ７が管体４に係止状態にある時、強制的
にゴム栓保持用キヤツプ７が管体４から外す時の
引き抜き強度は10Kgである。これに対して、一般
的な刺通針を引き抜く時は、0.3Kgであり、又、
輸液時に一番圧力が高い場合とされる急速輸液時
の最大圧力は１Kgである。従つて、ゴム栓６が混
注口２からゆるんだり外れることは無い。
次に、液体混注器具１におけるト字管Ａのプラ
イミングを行い、ト字管Ａ内の空気の抜け具合に
ついて実測した。
測定条件は以下の通り、枝管の内径は２mm、液
体は生理食塩水、液量及び圧力は、0.2／min
×0.1Kg／cm2、サンプルにおける混注口２側の管
体４の内径（mm）は、2.5、3.0、3.5、4.0、5.0、
各サンプルにつき20回目視観察を行う。以下、結
果を表−１に示す。
[Industrial Application Field] The present invention relates to a liquid co-infusion device used for temporarily co-injecting medicinal solutions into an infusion line or for long-term co-infusion during infusion administration. [Prior Art] Conventionally, a simple method for temporary co-infusion or long-term co-infusion during infusion administration is to set a rubber tube capable of co-injection on the venipuncture side of the infusion line, and insert a co-infusion needle into the rubber tube capable of co-injection. I was going through it. In addition, when administering infusion fluids, if the simple method of using a mixed injection rubber tube is difficult to handle, a T-shaped tube consisting of a tube body with a mixed injection port on the upstream side and an outlet on the downstream side with branch pipes installed can be used. and a liquid injection device that is removably fitted into the mixed injection port of the T-tube and can be pierced with a piercing needle, or a device that prevents the mixed injection port from falling off from the liquid injection device. In order to prevent this, liquid co-infusion devices were used in which the cap for holding the stopper was adhesively bonded with a solvent. [Problems to be Solved by the Invention] However, in the above-mentioned rubber tube capable of co-injection, when the co-infusion needle pierces the pierced portion of the tube, not only the pierced portion but also other parts are pierced, causing a problem. In addition, when co-injecting for a long time, the co-infusion needle may come off due to various reasons, causing the co-infusion solution to leak, leaking from the joint between the rubber tube for mixed injection and the line tube, or the rubber tube for co-injection coming off from the line tube. or In addition, even if the device is a liquid mixed injection device that eliminates various problems with mixed injection rubber tubes, the inner diameter of the tube on the mixed injection port side is small, so air removal from the mixed injection port side is insufficient during priming before use. The remaining air may enter the patient's blood vessel from the infusion line through the intravenous needle, potentially causing a serious accident. Furthermore, those without a stopper retaining cap to prevent the mixing spout stopper from falling off,
Due to pressure fluctuations in the infusion line, the mixed injection port plug comes off from the mixed injection port of the tube, and the infusion solution flows out. Even if the cap is equipped with a cap for retaining the stopper, since the cap for retaining the stopper is glued with a solvent near the mixed injection port of the tube, there is a risk that the solvent may enter the infusion line and enter the patient's blood during infusion. It was hot. The present invention has been made in view of the above circumstances, and air does not remain in the pipe body on the side of the mixed injection port during priming.
Another object of the present invention is to provide a liquid co-infusion device that can completely prevent leakage of the co-infusion liquid and falling off of the co-injection port plug during use without using solvent adhesive. [Means for solving the problem] In order to solve the above-mentioned problems, the liquid co-infusion device of the present invention is provided with a branch pipe in the middle of a tube body having a co-injection port on the upstream side and an outlet on the downstream side. A T-shaped tube,
In a liquid co-infusion device comprising a co-injection port plug provided at the co-injection port of the T-shaped tube and pierceable with a piercing needle, the inner diameter of the tube on the side of the co-injection port is 4 mm or more, and the inner diameter of the branch pipe is This is more than double the amount. [Function] According to the above configuration, priming is performed by tilting the branch pipe of the T-tube and injecting the infusion agent from the branch pipe, but if the inner diameter of the pipe body on the mixed injection port side is 4 mm or more and the inner diameter of the branch pipe is Since the volume is more than twice as large, the infusion agent flowing from the branch pipe flows down into the tube on the mixed injection port side by its own weight, displacing air and filling the mixed injection port side. In addition, when a stopper holding cap is provided, the stopper part of the stopper holding cap is locked to the locking part provided on the outer circumferential surface of the tube on the side of the mixed inlet while holding the mixed inlet stopper. The mixed spout stopper will not fall off from the mixed spout. [Example] Hereinafter, an example of the present invention will be described in detail based on the accompanying drawings. FIG. 1 is a sectional view of the liquid co-infusion device of the present invention. In the same figure, reference numeral 1 indicates a liquid co-infusion device, and the liquid co-infusion device 1 includes a pipe body 4 having a co-injection port 2 on the upstream side and an outlet port 3 on the downstream side, and a branch pipe 5 in the pipe body 4.
A T-shaped tube A provided with a T-shaped tube A, and a mixed injection port 2 of the T-shaped tube A.
A rubber stopper (mixed injection port stopper) 6 that can be detachably fitted into and pierced with a piercing needle, and a rubber stopper holding cap (that holds the rubber stopper 6 and prevents it from falling off from the mixed injection port 2). It consists of a stopper holding cap) 7. The T-shaped tube A is made of synthetic resin such as polycarbonate, and the tube body 4 of the T-shaped tube A is successively formed into a large diameter portion 4 from the mixed injection port 2 toward the outflow port 3.
a, a reducer portion 4b, and a small diameter portion 4c are formed concentrically. Note that the cross section of the tubular body 4 is usually a perfect circle, but is not limited to this, and may be, for example, an ellipse or a square. The branch pipe 5 is provided in the large diameter part 4a of the pipe body 4, and the inner diameter of the large diameter part 4a is at least 4 mm or more and twice the inner diameter of the branch pipe 5 (large diameter part 4a of the pipe body 4). (inner diameter of branch pipe 5≧2), but preferably the inner diameter of the large diameter portion 4a is 5 mm or more. That is, the reason why the inner diameter of the large diameter portion 4a is at least 4 mm or more and at least twice the inner diameter of the branch pipe 5 is that when priming from the branch pipe 5, the opening 5a of the branch pipe 5 in the large diameter portion 4a and the mixed injection port 2 This is to prevent air from accumulating in the space S between the rubber stopper 6 and the rubber stopper 6 fitted therein. The rubber stopper 6 is made of natural rubber such as isoprene rubber. In order to prevent liquid leakage from the mixed injection port 2 of the pipe body 4, the rubber stopper 6 is equipped with a
A circular groove 6a is cut into which the end of the large diameter portion 4a on the side of the mixed injection port 2 can be fitted.
Further, the rubber stopper 6 is provided with a spherical recess 6b in order to make it easier to pierce it with a piercing needle. The rubber stopper 6 formed in this manner is fitted into the large diameter portion 4a of the pipe body 4 on the mixed injection port 2 side. The rubber stopper holding cap 7 has a pot shape and is made of synthetic resin such as polypropylene. A hole 7b having approximately the same diameter as the inner diameter of the large diameter portion 4a of the tubular body 4 is bored in the top portion 7a of the rubber plug holding cap 7 so that a piercing needle can pierce the rubber plug 6. Further, a stopper portion 8 projecting inward is provided on the edge 7c of the rubber stopper holding cap 7. This stopper portion 8 locks onto an annular protrusion (locking portion) 9 provided on the outer circumferential surface of the large diameter portion 4a of the tube body 4, so that the rubber stopper holding cap 7
In this case, the rubber stopper 6 is held in a state where the rubber stopper 6 is firmly fitted into the mixed injection port 2 of the tube body 4. Therefore, the rubber stopper 6 will not come off from the co-injection port 2 of the tube body 4 unless this locked state is released or an unimaginable external force is applied. As shown in FIG. 2, the reason why the stopper part 8 and the projection part 9 have inclined surfaces 8a and 9a is that when the rubber stopper holding cap 7 is locked to the tube body 4 (in the direction of the arrow B) This is to make it easier for the edge 7c of the rubber stopper holding cap 7 to expand outward when force is applied (applying force) to the tube body 4. Next, the operation of the liquid co-infusion device configured as described above will be described. First, the liquid co-infusion device 1 is primed before use. This priming is performed on branch pipe 5 of T-shaped pipe A.
is directed downward, and the T-shaped tube A is tilted so that the outflow port 3 of the T-shaped tube A is on the upper side and the mixed injection port 2 is on the lower side.
Next, physiological saline is slowly injected through the branch pipe 5. The physiological saline injected into the branch pipe 5 is as shown in Fig. 3a.
As shown in the figure, a droplet is formed at the opening 5a, and this droplet gradually becomes larger and flows down from the opening 5a under its own weight.
Physiological saline should be prepared in a third tube, if the inner diameter of the pipe body 4 on the mixed injection port 2 side is 4 mm or more and twice or more the inner diameter of the branch pipe 5, preferably 5 mm or more.
As shown in FIG. 3B, it flows down into the space S on the side of the mixed injection port 2 on the lower side, displaces air and fills the side of the mixed injection port 2, and then flows out from the upper outlet 3 as shown in FIG. 3C. In this way, priming ends. At this time, the inner diameter of the pipe body 4 on the mixed injection port 2 side is 4
mm and less than twice the inner diameter of the branch pipe 5, the physiological saline flows out from the upper outlet 3 without displacing air into the space S on the mixed injection port 2 side due to surface tension. For this reason, the mixed injection port 2 of the pipe body 4
Air will remain on the side. After the priming operation is completed, the physiological saline is switched to the required drug solution, and the drug solution is administered. On this occasion,
If necessary, as shown in FIG. 4, the rubber stopper 6 is pierced with the piercing needle 10 in order to co-inject other medicinal solutions.
Other medical solutions are co-injected from the co-injection port 2. Then, the co-injected medical solution enters the blood vessel of the patient M via the tube 11 and the puncture needle 12, and the medical solution is administered. In addition, when co-injecting another drug solution after co-injection with another drug solution, pull out the piercing needle 10 of the other drug solution from the rubber stopper 6, insert the piercing needle 13 of the other drug solution into the rubber stopper 6, and insert another drug solution. Mix the medicines from the mixed injection port 2.
During this operation, the rubber stopper 6 is inserted into the rubber stopper holding cap 7.
, and the stopper part 8 of the rubber stopper holding cap 7 is engaged with the protrusion part 9 of the tube body 4.
The rubber plug 6 closes to the mixed injection port 2 when the piercing needles 10 and 13 are inserted or pulled out, or due to the internal pressure during infusion.
It never comes off. That is, when the rubber stopper holding cap 7 is locked to the tube body 4, the pull-out strength when the rubber stopper holding cap 7 is forcibly removed from the tube body 4 is 10 kg. On the other hand, when pulling out a general piercing needle, the weight is 0.3Kg, and
The maximum pressure during rapid infusion, which is the highest pressure during infusion, is 1 kg. Therefore, the rubber stopper 6 will not loosen or come off from the mixed injection spout 2. Next, the T-shaped tube A in the liquid co-infusion device 1 was primed, and the degree of air release inside the T-shaped tube A was actually measured. The measurement conditions are as follows: the inner diameter of the branch pipe is 2 mm, the liquid is physiological saline, and the liquid volume and pressure are 0.2/min.
×0.1Kg/cm 2 , the inner diameter (mm) of the tube 4 on the mixed injection port 2 side in the sample is 2.5, 3.0, 3.5, 4.0, 5.0,
Make 20 visual observations for each sample. The results are shown in Table 1 below.
以上詳述したように、本発明の液体混注器具
は、混注口側の管体の内径を４mm以上かつ枝管の
内径の２倍以上としたので、プライミング時に枝
管から流入した薬液は自重で混注口側の管体に流
れ落ち、空気を押しのけ混注口側を満たすから、
ト字管内の空気は完全に抜け、薬液投与中、患者
に空気が入る虞が全くない。
又、混注口に、混注口栓の脱落を防止する栓保
持用キヤツプを設けた場合には、混注口栓を保持
して、混注口側の管体の外周面に設けられた係止
部に栓保持用キヤツプのストツパ部を係止するか
ら、混注口から混注口栓がゆるんで液漏れした
り、混注口栓が脱落したりすることを完全に防止
することが出来、且つ、溶剤接着することがない
から溶剤が混注液中に混入することがない等の効
果がある。
As detailed above, in the liquid mixed injection device of the present invention, the inner diameter of the tube on the side of the mixed injection port is 4 mm or more and at least twice the inner diameter of the branch pipe, so that the liquid medicine flowing from the branch pipe during priming is mixedly injected by its own weight. It flows down into the tube on the mouth side, displacing air and filling the mixed injection port side.
The air inside the T-tube is completely removed, and there is no risk of air entering the patient during drug administration. In addition, if the mixed injection spout is equipped with a cap holding cap that prevents the mixed injection spout from falling off, the mixed injection spout can be held and attached to the locking part provided on the outer circumferential surface of the pipe on the side of the mixed injection spout. Since the stopper part of the stopper holding cap is locked, it is possible to completely prevent the mixed injection spout plug from loosening and leaking from the mixed injection spout, or from falling off, and it is also solvent-adhesive. This has the advantage that the solvent will not be mixed into the co-injection solution.
図面は本発明の実施例を示し、第１図は本発明
の液体混注器具の断面図、第２図は第１図のＣ部
の拡大断面図、第３図は液体混注器具のプライミ
ングの説明図、第４図は液体混注器具を利用した
輸液投与の説明図である。
１……液体混注器具、２……混注口、３……流
出口、４……管体、５……枝管、６……ゴム栓
（混注口栓）、６……ゴム栓（混注口栓）、７……
ゴム栓保持用キヤツプ（栓保持用キヤツプ）、８
……ストツパ部、９……突起部（係止部）、１０
……刺通針、Ａ……ト字管。
The drawings show embodiments of the present invention; FIG. 1 is a sectional view of the liquid co-infusion device of the present invention, FIG. 2 is an enlarged sectional view of section C in FIG. 1, and FIG. 3 is an explanation of priming of the liquid co-infusion device. FIG. 4 is an explanatory diagram of infusion administration using a liquid co-infusion device. 1... Liquid mixed injection device, 2... Mixed injection port, 3... Outlet, 4... Pipe body, 5... Branch pipe, 6... Rubber stopper (mixed injection port plug), 6... Rubber stopper (mixed injection port) stopper), 7...
Rubber stopper holding cap (stopper holding cap), 8
...Stopper part, 9...Protrusion part (locking part), 10
...Piercing needle, A...T-tube.
Claims (1)
る管体の途中に枝管を設けてなる硬質樹脂よりな
るト字管と、前記ト字管の混注口に設けられると
共に刺通針にて刺通可能な混注口栓とから成る液
体混注器具において、前記混注口側の管体の内径
を４mm以上10mm以下としかつ前記枝管の内径の２
倍以上としたことを特徴とする液体混注器具。 ２ 前記混注口に、前記混注口栓の脱落を防止す
る栓保持用キヤツプを設けた特許請求の範囲第１
項記載の液体混注器具。 ３ 前記栓保持用キヤツプは、ストツパ部を有
し、前記ストツパ部を、前記混注口側の管体の外
周面に設けた係止部に係止することにより前記混
注口栓を保持する特許請求の範囲第２項記載の液
体混注器具。[Scope of Claims] 1. A T-shaped pipe made of a hard resin having a branch pipe in the middle of a pipe body having a mixed injection port on the upstream side and an outlet on the downstream side, and a T-shaped pipe made of a hard resin, which has a mixed injection port on the downstream side, and In a liquid co-infusion device comprising a co-injection port plug that can be pierced with a piercing needle, the inner diameter of the tube on the side of the co-injection port is 4 mm or more and 10 mm or less, and 2 mm or less of the inner diameter of the branch pipe.
A liquid co-infusion device characterized by more than double the amount. 2. Claim 1, wherein the mixed pouring spout is provided with a stopper holding cap for preventing the mixed pouring spout from falling off.
Liquid co-infusion device described in section. 3. A patent claim in which the stopper holding cap has a stopper part, and the stopper part is retained in a locking part provided on the outer peripheral surface of the tube on the side of the mixed injection port to hold the mixed injection port stopper. A liquid co-infusion device according to item 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62313047A JPH01151463A (en) | 1987-12-10 | 1987-12-10 | Appliance for injecting mixed fluid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62313047A JPH01151463A (en) | 1987-12-10 | 1987-12-10 | Appliance for injecting mixed fluid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01151463A JPH01151463A (en) | 1989-06-14 |
| JPH0587264B2 true JPH0587264B2 (en) | 1993-12-16 |
Family
ID=18036564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62313047A Granted JPH01151463A (en) | 1987-12-10 | 1987-12-10 | Appliance for injecting mixed fluid |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01151463A (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0311265A (en) * | 1989-06-09 | 1991-01-18 | Chubu Electric Power Co Inc | Latent heat accumulator |
| JPH0748271Y2 (en) * | 1989-12-19 | 1995-11-08 | 日本シャーウッド株式会社 | Liquid mixed injection tool |
| JPH0383552U (en) * | 1989-12-19 | 1991-08-26 | ||
| KR20020046677A (en) * | 2000-12-15 | 2002-06-21 | 최원식 | Elbow connector for intravenous injection |
| JP4549740B2 (en) * | 2004-05-31 | 2010-09-22 | 日本シャーウッド株式会社 | Plug for temporary closure |
| US7291134B2 (en) * | 2004-10-25 | 2007-11-06 | P. Rowan Smith, Jr. | Medical connector |
| JP4586975B2 (en) * | 2005-02-28 | 2010-11-24 | 株式会社ジェイ・エム・エス | Indwelling needle structure |
| JP6966837B2 (en) * | 2015-12-08 | 2021-11-17 | Ａｇｃエンジニアリング株式会社 | Sewage treatment system |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62201160A (en) * | 1986-02-27 | 1987-09-04 | 日本ゼオン株式会社 | Injection tube |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5687043U (en) * | 1979-12-06 | 1981-07-13 |
-
1987
- 1987-12-10 JP JP62313047A patent/JPH01151463A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62201160A (en) * | 1986-02-27 | 1987-09-04 | 日本ゼオン株式会社 | Injection tube |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01151463A (en) | 1989-06-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |