JPH05245197A - Implement for continuous injection of chemical liquid - Google Patents
Implement for continuous injection of chemical liquidInfo
- Publication number
- JPH05245197A JPH05245197A JP4045648A JP4564892A JPH05245197A JP H05245197 A JPH05245197 A JP H05245197A JP 4045648 A JP4045648 A JP 4045648A JP 4564892 A JP4564892 A JP 4564892A JP H05245197 A JPH05245197 A JP H05245197A
- Authority
- JP
- Japan
- Prior art keywords
- plunger
- injection
- chemical liquid
- drug solution
- load spring
- 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
Links
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、患者の体に装着した
カテーテルなどに接続して、薬液を定量的に連続注入す
る器具に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an instrument for quantitatively and continuously injecting a drug solution by connecting to a catheter or the like attached to the body of a patient.
【０００２】[0002]
【従来の技術】従来、この種の薬液連続注入器具には、
図５に示したように、逆止弁を有する薬液充填口１０を
備えたバルーン１１を外筒１２内の一方に設けたものが
存在する。この薬液連続注入器具は、図６に示したよう
に、前記外筒１２内の他方から注射筒を差し込み、この
注射筒内の薬液を薬液充填口１０からバルーン１１内に
充填するようにしている。2. Description of the Related Art Conventionally, this type of continuous injection device for chemical liquids has
As shown in FIG. 5, there is one in which a balloon 11 having a drug solution filling port 10 having a check valve is provided on one side of an outer cylinder 12. As shown in FIG. 6, in this drug solution injecting device, an injection cylinder is inserted from the other side of the outer cylinder 12, and the drug solution in the injection cylinder is filled into the balloon 11 from the drug solution filling port 10. ..
【０００３】そして、前記薬液連続注入器具は、薬液が
充填されたバルーン１１の収縮圧力により、薬液が外筒
１２の一端に設けたチューブ３から流出するようにして
おり、流量制御管４を介して、このチューブ３を患者の
体に装着したカテーテル５に連結して、患者の体内に薬
液を定量的に連続注入するようにしている。In the continuous injection device for chemical liquid, the chemical liquid is caused to flow out of the tube 3 provided at one end of the outer cylinder 12 by the contraction pressure of the balloon 11 filled with the chemical liquid. The tube 3 is connected to the catheter 5 attached to the patient's body so that the drug solution is quantitatively and continuously injected into the patient's body.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、上記従
来の薬液連続注入器具では、薬液が充填されたバルーン
１１の収縮圧力が、バルーン１１内の薬液量により変化
し、薬液注入初期の薬液量が多くバルーン１１の膨らみ
が大きい時と、薬液注入後期の薬液量が少なくバルーン
１１の膨らみが小さくなった時とでは、バルーン１１の
収縮圧力に相当の差が生ずる。このため、患者の体内に
注入する薬液の流速が、薬液注入時、特に薬液注入初期
と薬液注入後期とでは変化するので、安定した薬液の注
入が行えないという課題を有していた。However, in the above-mentioned conventional chemical liquid continuous injecting device, the contraction pressure of the balloon 11 filled with the chemical liquid changes depending on the amount of the chemical liquid in the balloon 11, and the amount of the chemical liquid at the initial stage of the liquid chemical injection is large. There is a considerable difference in the deflation pressure of the balloon 11 when the balloon 11 has a large bulge and when the balloon 11 has a small bulge and the bulge is small at the latter stage of the liquid chemical injection. For this reason, the flow rate of the drug solution injected into the patient's body changes during the drug solution injection, particularly during the initial period of the drug solution injection and the latter period of the drug solution injection, which poses a problem that the stable injection of the drug solution cannot be performed.
【０００５】さらに、上記従来の薬液連続注入器具で
は、バルーン１１の材質をシリコンゴムやポリイソプレ
ンゴムなどのゴム製としているので、このバルーン１１
内に注射筒内の薬液を充填する場合に、破裂するおそれ
があり、薬液の充填時に相当の注意を要するという課題
を有していた。そこで、この発明は、患者の体内に注入
する薬液の流速が、薬液注入の全期間において変化せ
ず、安定した薬液の注入が行えると共に、薬液の充填操
作が簡単であり、それほど注意を要することのない薬液
連続注入器具を提供することを目的としてなされたもの
である。Further, in the above-described conventional continuous liquid injector, the material of the balloon 11 is rubber such as silicone rubber or polyisoprene rubber.
There is a problem that when the drug solution in the syringe is filled therein, there is a risk of rupture, and great care must be taken when filling the drug solution. Therefore, according to the present invention, the flow rate of the drug solution to be injected into the patient's body does not change during the entire period of the drug solution injection, and stable drug solution injection can be performed, and the operation of filling the drug solution is simple, and so caution is required. The object of the present invention is to provide a continuous injection device for drug solution.
【０００６】[0006]
【課題を解決するための手段】そのため、この発明の薬
液連続注入器具は、薬液を収容する注射筒１と、注射筒
１内の薬液を押し出すプランジャー６と、注射筒１内に
プランジャー６を押し込む定荷重バネ７とを有し、前記
注射筒１に定荷重バネ７の一端を連結すると共に、前記
プランジャー６後部に定荷重バネ７の他端を連結したも
のとしている。Therefore, in the device for continuously injecting a drug solution of the present invention, the syringe 1 for containing the drug solution, the plunger 6 for pushing out the drug solution in the syringe 1 and the plunger 6 in the syringe 1 are provided. And a constant force spring 7 for pushing the same, one end of the constant force spring 7 is connected to the injection cylinder 1, and the other end of the constant force spring 7 is connected to the rear portion of the plunger 6.
【０００７】さらに、この発明の薬液連続注入器具は、
薬液を収容する注射筒１と、注射筒１内の薬液を押し出
すプランジャー６と、注射筒１内にプランジャー６を押
し込む定荷重バネ７とを有し、前記定荷重バネ７をプー
リ８に巻着して、このプーリ８を前記プランジャー６後
端のフランジ部６ａに連結すると共に、前記定荷重バネ
７の巻端を前記注射筒１後端のフランジ部１ａに連結し
たものとすることができる。Furthermore, the chemical liquid continuous injection device of the present invention is
It has an injection cylinder 1 for containing a drug solution, a plunger 6 for pushing out the drug solution in the injection cylinder 1, and a constant force spring 7 for pressing the plunger 6 into the injection cylinder 1, and the constant force spring 7 is attached to a pulley 8. The pulley 8 should be wound and connected to the flange portion 6a at the rear end of the plunger 6, and the winding end of the constant force spring 7 should be connected to the flange portion 1a at the rear end of the injection cylinder 1. You can
【０００８】また、この発明の薬液連続注入器具は、薬
液を収容する注射筒１と、注射筒１内の薬液を押し出す
プランジャー６と、注射筒１内にプランジャー６を押し
込む定荷重バネ７とを有し、前記定荷重バネ７をプーリ
８に巻着して、このプーリ８を前記注射筒１後端のフラ
ンジ部１ａに連結すると共に、前記定荷重バネ７の巻端
を前記プランジャー６後端のフランジ部６ａに連結した
ものとすることができる。Further, the drug solution continuous injecting device of the present invention comprises an injection cylinder 1 for containing the drug solution, a plunger 6 for pushing out the drug solution in the injection cylinder 1, and a constant force spring 7 for pushing the plunger 6 into the injection cylinder 1. And the constant load spring 7 is wound around a pulley 8 and the pulley 8 is connected to the flange portion 1a at the rear end of the injection cylinder 1 and the winding end of the constant load spring 7 is connected to the plunger. 6 can be connected to the flange portion 6a at the rear end.
【０００９】[0009]
【作用】この発明の薬液連続注入器具は、プランジャー
６による薬液の押圧力が、定荷重バネ７を用いることに
より、薬液注入時、特に薬液注入初期と薬液注入後期に
おいても一定となり、薬液注入の全期間において変化し
ない。さらに、この発明の薬液連続注入器具は、プラン
ジャー６を引くことにより、注射筒１内に薬液が収容さ
れるので、薬液の充填操作が簡単である。In the device for continuously injecting a chemical solution according to the present invention, the pressing force of the chemical solution by the plunger 6 becomes constant at the time of the chemical solution injection, particularly at the initial and late stages of the chemical solution injection, by using the constant force spring 7. Does not change during the entire period of. Further, in the drug solution continuous injecting device of the present invention, the drug solution is stored in the injection barrel 1 by pulling the plunger 6, so that the drug solution filling operation is easy.
【００１０】[0010]
【実施例】以下、この発明の薬液連続注入器具の構成
を、実施例として示した図面に基づいて詳細に説明す
る。図１は、この発明の薬液連続注入器具の注射筒１の
注入口２に接続したチューブ３を、流量制御管４を介し
て、患者の体に装着したカテーテル５に連結し、患者の
体内に薬液を定量的に連続注入するようにした状態を示
している。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The construction of a drug solution continuous injection device of the present invention will be described in detail below with reference to the drawings shown as embodiments. FIG. 1 shows that a tube 3 connected to an inlet 2 of an injection cylinder 1 of a drug solution continuous injecting device of the present invention is connected to a catheter 5 attached to a patient's body via a flow control tube 4 so as to be inserted into the patient's body. It shows a state in which the chemical solution is quantitatively continuously injected.
【００１１】この発明の薬液連続注入器具は、薬液を収
容する注射筒１と、注射筒１内の薬液を押し出すプラン
ジャー６と、注射筒１内にプランジャー６を押し込む定
荷重バネ７とを有している。そして、前記注射筒１に
は、定荷重バネ７の一端を連結しており、前記プランジ
ャー６後部には、定荷重バネ７の他端を連結したものと
している。The device for continuously injecting a drug solution according to the present invention comprises a syringe 1 for containing the drug solution, a plunger 6 for pushing out the drug solution in the syringe 1, and a constant force spring 7 for pushing the plunger 6 into the syringe 1. Have Further, one end of a constant load spring 7 is connected to the injection cylinder 1, and the other end of the constant load spring 7 is connected to the rear part of the plunger 6.
【００１２】実施例では、図２、３に示したように、前
記定荷重バネ７をプーリ８に巻着して、このプーリ８を
前記プランジャー６後端のフランジ部６ａに連結すると
共に、前記定荷重バネ７の巻端を前記注射筒１後端のフ
ランジ部１ａに連結したものとしている。また、図４に
示したように、定荷重バネ７を巻着したプーリ８を前記
注射筒１後端のフランジ部１ａに連結すると共に、前記
定荷重バネ７の巻端を前記プランジャー６後端のフラン
ジ部６ａに連結したものとしてもよい。In the embodiment, as shown in FIGS. 2 and 3, the constant load spring 7 is wound around a pulley 8 and the pulley 8 is connected to a flange portion 6a at the rear end of the plunger 6, and The winding end of the constant force spring 7 is connected to the flange portion 1a at the rear end of the injection cylinder 1. Further, as shown in FIG. 4, the pulley 8 around which the constant load spring 7 is wound is connected to the flange portion 1a at the rear end of the injection cylinder 1, and the winding end of the constant load spring 7 is connected to the rear side of the plunger 6. It may be connected to the flange portion 6a at the end.
【００１３】なお、注射筒１内にプランジャー６をスム
ーズに押し込むには、実施例に示したように、前記定荷
重バネ７を、プランジャー６を間に挟んで対向する位置
に設けたものとするのが好ましいが、注射筒１内にプラ
ンジャー６をスムーズに押し込むことができれば、定荷
重バネ７の設置個所や個数は、特にこの実施例に限定さ
れるものではない。In order to smoothly push the plunger 6 into the syringe barrel 1, as shown in the embodiment, the constant force spring 7 is provided at a position facing each other with the plunger 6 interposed therebetween. However, as long as the plunger 6 can be smoothly pushed into the syringe barrel 1, the location and number of the constant force springs 7 are not particularly limited to this embodiment.
【００１４】以上のように構成されたこの発明の薬液連
続注入器具は、プランジャー６を引くことにより、注入
口２から注射筒１内に薬液を収容する。そして、この注
入口２にチューブ３を接続し、流量制御管４を介して、
このチューブ３を患者の体に装着したカテーテル５に連
結し、薬液連続注入器具を収納ケース（図示せず）など
に収納し、患者が携帯できるようにする。すると、患者
がこの薬液連続注入器具を携帯した状態で、患者の体内
に薬液を定量的に連続注入することができる。すなわ
ち、この発明の薬液連続注入器具は、定荷重バネ７が図
２に示した状態から図３に示した状態に徐々に縮小して
いくことにより、注射筒１内に収容された薬液は、プラ
ンジャー６により押し出され、注入口２からチューブ３
に流出し、流量制御管４を通過し、カテーテル５に導入
され、患者の体内に定量的に連続注入される。The device for continuously injecting a drug solution of the present invention constructed as described above stores the drug solution in the syringe barrel 1 from the injection port 2 by pulling the plunger 6. Then, a tube 3 is connected to the inlet 2 and a flow rate control pipe 4 is used.
The tube 3 is connected to a catheter 5 attached to the patient's body, and the continuous drug infusion device is stored in a storage case (not shown) or the like so that the patient can carry it. Then, the patient can carry out the quantitative infusion of the drug solution into the body of the patient while carrying the drug solution injecting device. That is, in the drug solution continuous injection device of the present invention, the drug solution contained in the syringe barrel 1 is gradually reduced by reducing the constant load spring 7 from the state shown in FIG. 2 to the state shown in FIG. It is pushed out by the plunger 6, and the tube 3 comes out
Flow through the flow control tube 4, are introduced into the catheter 5, and are continuously infused quantitatively into the patient's body.
【００１５】[0015]
【発明の効果】この発明の薬液連続注入器具は、以上の
ように構成されているので、患者の体内に注入する薬液
の流速が、薬液注入の全期間において変化せず、安定し
た薬液の注入が行える。さらに、この発明の薬液連続注
入器具は、薬液の充填操作が簡単であり、従来品と比較
して薬液の充填操作にそれほど注意を要することはな
い。Since the device for continuously injecting a medicinal solution of the present invention is configured as described above, the flow rate of the medicinal solution to be injected into the patient's body does not change during the entire period of medicinal solution infusion, and stable infusion of the medicinal solution is achieved. Can be done. Furthermore, the chemical liquid continuous injection device of the present invention is simple in the chemical liquid filling operation, and requires less attention in the chemical liquid filling operation than the conventional product.
【図１】この発明の薬液連続注入器具の使用状態を示す
説明図である。FIG. 1 is an explanatory view showing a usage state of a drug solution continuous injection device of the present invention.
【図２】この発明の薬液連続注入器具の一実施例を示す
側面図である。FIG. 2 is a side view showing an embodiment of a drug solution continuous injection device of the present invention.
【図３】この発明の薬液連続注入器具のプランジャーが
注射筒内の略中間位置までに押し込まれた状態を示す側
面図である。FIG. 3 is a side view showing a state where the plunger of the drug solution continuous injection device of the present invention is pushed to a substantially intermediate position in the injection cylinder.
【図４】この発明の薬液連続注入器具の他実施例を示す
側面図である。FIG. 4 is a side view showing another embodiment of the drug solution continuous injection device of the present invention.
【図５】従来の薬液連続注入器具の縦断面図である。FIG. 5 is a vertical sectional view of a conventional continuous injection device for chemical liquids.
【図６】従来の薬液連続注入器具の使用状態を示す説明
図である。FIG. 6 is an explanatory view showing a usage state of a conventional continuous injection device for chemical liquids.
１ 注射筒 １ａ フランジ部 ６ プランジャー ６ａ フランジ部 ７ 定荷重バネ ８ プーリ 1 Syringe barrel 1a Flange 6 Plunger 6a Flange 7 Constant load spring 8 Pulley
Claims (3)
の薬液を押し出すプランジャー６と、注射筒１内にプラ
ンジャー６を押し込む定荷重バネ７とを有し、前記注射
筒１に定荷重バネ７の一端を連結すると共に、前記プラ
ンジャー６後部に定荷重バネ７の他端を連結したことを
特徴とする薬液連続注入器具。1. An injection barrel 1 for containing a drug solution, a plunger 6 for pushing out the drug solution in the injection barrel 1, and a constant force spring 7 for pushing the plunger 6 into the injection cylinder 1, and the injection barrel 1 A constant-pressure spring 7 is connected to one end of the constant-load spring 7, and the other end of the constant-load spring 7 is connected to the rear portion of the plunger 6, which is a continuous liquid injector.
の薬液を押し出すプランジャー６と、注射筒１内にプラ
ンジャー６を押し込む定荷重バネ７とを有し、前記定荷
重バネ７をプーリ８に巻着して、このプーリ８を前記プ
ランジャー６後端のフランジ部６ａに連結すると共に、
前記定荷重バネ７の巻端を前記注射筒１後端のフランジ
部１ａに連結したことを特徴とする薬液連続注入器具。2. A constant force spring having a syringe barrel 1 for containing a drug solution, a plunger 6 for pushing out the drug solution in the syringe barrel 1, and a constant force spring 7 for pushing the plunger 6 into the syringe barrel 1. 7 is wound around a pulley 8 and the pulley 8 is connected to the flange portion 6a at the rear end of the plunger 6, and
A continuous injection device for chemical liquid, wherein a winding end of the constant force spring 7 is connected to a flange portion 1a at a rear end of the injection cylinder 1.
の薬液を押し出すプランジャー６と、注射筒１内にプラ
ンジャー６を押し込む定荷重バネ７とを有し、前記定荷
重バネ７をプーリ８に巻着して、このプーリ８を前記注
射筒１後端のフランジ部１ａに連結すると共に、前記定
荷重バネ７の巻端を前記プランジャー６後端のフランジ
部６ａに連結したことを特徴とする薬液連続注入器具。3. A constant force spring having a syringe barrel 1 for containing a drug solution, a plunger 6 for pushing out the drug solution in the syringe barrel 1, and a constant load spring 7 for pushing the plunger 6 into the syringe barrel 1. 7 is wound around a pulley 8 and the pulley 8 is connected to the flange portion 1a at the rear end of the injection cylinder 1 and the winding end of the constant force spring 7 is connected to the flange portion 6a at the rear end of the plunger 6. A continuous liquid medicine injecting device characterized in that
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4045648A JPH05245197A (en) | 1992-03-03 | 1992-03-03 | Implement for continuous injection of chemical liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4045648A JPH05245197A (en) | 1992-03-03 | 1992-03-03 | Implement for continuous injection of chemical liquid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05245197A true JPH05245197A (en) | 1993-09-24 |
Family
ID=12725197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4045648A Pending JPH05245197A (en) | 1992-03-03 | 1992-03-03 | Implement for continuous injection of chemical liquid |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05245197A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001012250A1 (en) * | 1999-08-18 | 2001-02-22 | Disetronic Licensing Ag | Device for the administration of an injectable product |
| JP2006514850A (en) * | 2002-12-23 | 2006-05-18 | カゼムザデー、ファラッド | Dosing device |
| US7105926B2 (en) | 2003-11-24 | 2006-09-12 | Lsi Logic Corporation | Routing scheme for differential pairs in flip chip substrates |
| JP2019168272A (en) * | 2018-03-22 | 2019-10-03 | 国立研究開発法人農業・食品産業技術総合研究機構 | Constant load applying device and device for measuring moisture content of measured object including water-containing and pneumatized materials provided with the same |
| US10485931B2 (en) | 2009-10-16 | 2019-11-26 | Janssen Biotech, Inc. | Palm activated drug delivery device |
| US10500348B2 (en) | 2009-10-16 | 2019-12-10 | Janssen Biotech, Inc. | Palm activated drug delivery device |
-
1992
- 1992-03-03 JP JP4045648A patent/JPH05245197A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6736795B2 (en) | 1989-08-18 | 2004-05-18 | Disetronic Licensing Ag | Device for administering an injectable product |
| WO2001012250A1 (en) * | 1999-08-18 | 2001-02-22 | Disetronic Licensing Ag | Device for the administration of an injectable product |
| JP2006514850A (en) * | 2002-12-23 | 2006-05-18 | カゼムザデー、ファラッド | Dosing device |
| US7105926B2 (en) | 2003-11-24 | 2006-09-12 | Lsi Logic Corporation | Routing scheme for differential pairs in flip chip substrates |
| US10485931B2 (en) | 2009-10-16 | 2019-11-26 | Janssen Biotech, Inc. | Palm activated drug delivery device |
| US10500348B2 (en) | 2009-10-16 | 2019-12-10 | Janssen Biotech, Inc. | Palm activated drug delivery device |
| US11541190B2 (en) | 2009-10-16 | 2023-01-03 | Janssen Biotech, Inc. | Palm activated drug delivery device |
| US11633546B2 (en) | 2009-10-16 | 2023-04-25 | Janssen Biotech, Inc. | Palm activated drug delivery device |
| JP2019168272A (en) * | 2018-03-22 | 2019-10-03 | 国立研究開発法人農業・食品産業技術総合研究機構 | Constant load applying device and device for measuring moisture content of measured object including water-containing and pneumatized materials provided with the same |
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