JP2005066285A - Liquid supply system with smooth discharge switching function - Google Patents
Liquid supply system with smooth discharge switching function Download PDFInfo
- Publication number
- JP2005066285A JP2005066285A JP2003341844A JP2003341844A JP2005066285A JP 2005066285 A JP2005066285 A JP 2005066285A JP 2003341844 A JP2003341844 A JP 2003341844A JP 2003341844 A JP2003341844 A JP 2003341844A JP 2005066285 A JP2005066285 A JP 2005066285A
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- Japan
- Prior art keywords
- liquid
- liquid supply
- discharge
- switching function
- discharge switching
- 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.)
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- 239000007788 liquid Substances 0.000 title claims abstract description 45
- 230000001133 acceleration Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 3
- 239000000853 adhesive Substances 0.000 abstract description 2
- 230000001070 adhesive effect Effects 0.000 abstract description 2
- 238000007599 discharging Methods 0.000 abstract 2
- 230000002411 adverse Effects 0.000 abstract 1
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 239000000243 solution Substances 0.000 description 4
- 239000003814 drug Substances 0.000 description 3
- 229940079593 drug Drugs 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000001647 drug administration Methods 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 239000002550 vasoactive agent Substances 0.000 description 1
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
Description
本発明は、複数の容器単位に収められた液体を連続して送液を行う環境下で、設定された送液速度で持続して安定に送液が出来るシステムである。 The present invention is a system capable of continuously and stably delivering a liquid stored in a plurality of container units in an environment where the liquid is continuously delivered at a set liquid delivery speed.
持続的に微量の液体を、正確な吐出を必要とする手段において、水道水のようにあたかも無限に吐出できる送液装置なら、持続的に微量の液体を制御吐出することは容易い。複数の容器に収められた液体を切れ目無く吐出するためには、予め複数容器をサイホニング現象などを利用して連結するか、減った分を注ぎ足さなけらばならない。しかし、容器を予め連結できない容器とか、注ぎ足しができない形態ではどうしても注入が中断してしまい、スムーズな切り替えが困難だった。
例えば、シリンジに納められた薬液を持続注入する場合、従来はシリンジポンプを用いて持続注入を行うが、感染症の問題があり予め複数容器をサイホニング現象などを利用して連結するとか、減った分を注ぎ足すなどは出来ないため、薬剤がなくなるとシリンジを交換する必要があり、その間は注入が中断した。また、複数台同じシリンジポンプを準備して、先行のシリンジ薬液がなくなると同時にもう一台を起動させても、注入の立ち下がり時間と注入の立ち上がり時間を一致させることが難しく、一時的な過剰投与、又は投与不足が発生したり、常に薬液残量監視と装置切り替え操作を必要とした。
この操作が血管作動薬投与の場合、薬液の切り替えが患者の容体に変化を与えてしまうので、サイズの大きいシリンジや輸液ポンプなどを利用して切り替え時間を長くする工夫をしているが、相対的に投与精度が低くなることが問題である。
たとえ、同じ送液装置を複数台準備して自動的に切り替える送液手段を行っても、切り替えがデジタル的になり送液量に一時的な変動が起こってしまう。又、空気に触れると変化する液体などを連続して一定量吐出させる場合においても同様のことが発生し、作業を中断する必要があった。With a liquid feeding device that can discharge a very small amount of liquid continuously and in an infinite manner like tap water, it is easy to control and discharge a small amount of liquid continuously. In order to discharge the liquid stored in a plurality of containers without a break, it is necessary to connect the plurality of containers in advance using a siphoning phenomenon or the like, or add the reduced amount. However, in the case where the container cannot be connected in advance or in a form where it cannot be added, the injection is interrupted, and smooth switching is difficult.
For example, when continuously injecting a chemical solution stored in a syringe, conventionally, continuous injection is performed by using a syringe pump. Since it was not possible to add more minutes, it was necessary to replace the syringe when the drug ran out, during which time the injection was interrupted. In addition, even if multiple syringes are prepared and the preceding syringe solution is exhausted and another unit is activated at the same time, it is difficult to match the injection fall time with the injection rise time. Administration or lack of administration occurred, and monitoring of the remaining amount of the drug solution and device switching operation were always required.
When this operation is vasoactive drug administration, switching the drug solution will change the patient's condition, so we have devised a longer switching time using a large syringe or infusion pump, etc. The problem is that the administration accuracy is lowered.
For example, even if a plurality of the same liquid feeding devices are prepared and a liquid feeding means for automatically switching is performed, the switching becomes digital and a temporary fluctuation occurs in the liquid feeding amount. Further, the same thing occurs when a constant amount of liquid that changes when it is exposed to air is discharged, and it is necessary to interrupt the operation.
本発明は、医療従事者が医療機器を使用するとき、工業的に接着剤を連続して使用するとき、液体の切れ目や吐出量の変化が問題になる環境下で、適正と思われる吐出量に設定すれば、液体が切れ目なく連続的に吐出制御が出来るシステムである。 The present invention provides a discharge amount that is considered to be appropriate when a medical worker uses a medical device or when an industrial adhesive is used continuously in an environment where a break in the liquid or a change in the discharge amount becomes a problem. If it is set to, the system can control the discharge of liquid continuously without breaks.
いま、その構成を説明すると、
（イ）システム本体１に吐出物Ａ２を設ける。
（ロ）システム本体１に吐出物Ｂ３を設ける。
（ハ）システム本体１に指定された送液終了時間前に送液流量を減速制御又は増速制御する回路４を設ける。
以上のように装置する。Now, to explain its configuration,
(A) Discharge A2 is provided in the system
(B) Discharge B3 is provided in the
(C) A circuit 4 is provided for performing a deceleration control or a speed increase control on the liquid supply flow rate before the liquid supply end time designated in the system
The apparatus is as described above.
次に本発明の実施の形態を述べると、最初の送液では、吐出物Ａ２が送液され送液終了時間前に指定された送液終了時間前に送液流量を減速制御又は増速制御する回路４により送液流量が減速され、指定された送液終了時間前に送液流量を減速制御又は増速制御する回路４により、吐出物Ｂ３の送液流量が増速される。 Next, an embodiment of the present invention will be described. In the first liquid feeding, the discharge A2 is fed and the liquid feeding flow rate is controlled to be reduced or increased before the liquid feeding end time specified before the liquid feeding end time. The liquid supply flow rate of the discharge B3 is increased by the circuit 4 that performs deceleration control or speed increase control of the liquid supply flow rate before the designated liquid supply end time.
なお、本発明の実施に当たって次の如き事ができる。
（イ）吐出物Ｂ３を省き、指定された送液終了時間前に送液流量を減速制御又は増速する回路４に通信機能を設ける。
以上の内容のシステム本体１を複数台通信ラインでつないでも同じ効果が得られる。In implementing the present invention, the following can be performed.
(A) A communication function is provided in the circuit 4 that omits the discharged product B3 and performs deceleration control or increase of the liquid supply flow rate before the designated liquid supply end time.
The same effect can be obtained by connecting a plurality of system
したがって、駆動側の液体が残り少なくなったのを検知し、次の液体に接続された他方の送液装置が徐々に送液速度を上げるとともに、液体の残りが少ない送液装置は徐々に送液速度を下げていくことで、あたかも無限に正確な吐出ができる。 Therefore, it is detected that the remaining liquid on the driving side is low, the other liquid feeding device connected to the next liquid gradually increases the liquid feeding speed, and the liquid feeding device with little liquid remaining gradually By reducing the speed, it is possible to discharge infinitely accurately.
１はシステム本体
２は吐出物Ａ
３は吐出物Ｂ
４は指定された送液終了時間前に送液流量を減速制御又は増速制御する回路
５吐出物出口
６は通信ライン
７は送液流量軸
８は時間軸
９は吐出物Ａの流量変化
１０は吐出物Ｂの流量変化
１１は吐出物配管1 is system
3 is discharge B
4 is a circuit for performing deceleration control or speed-increasing control of the liquid supply flow rate before the specified liquid supply end time. Is the
Claims (2)
（ロ）システム本体１に吐出物Ｂ３を設ける。
（ハ）システム本体１に指定された送液終了時間前に送液流量を減速制御又は増速制御する回路４を設ける。
以上の如く構成された、スムーズな吐出切り替え機能つき送液システム。(A) Discharge A2 is provided in the system main body 1.
(B) Discharge B3 is provided in the system body 1.
(C) A circuit 4 is provided for performing a deceleration control or a speed increase control on the liquid supply flow rate before the liquid supply end time designated in the system main body 1.
A liquid delivery system with a smooth discharge switching function configured as described above.
以上の如く構成された、請求項１のスムーズな吐出切り替え機能つき送液システム。(A) A communication function is provided in the circuit 4 for performing the deceleration control or the acceleration control of the liquid supply flow rate before the specified liquid supply end time is omitted.
The liquid feeding system with a smooth discharge switching function according to claim 1 configured as described above.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003341844A JP4319499B2 (en) | 2003-08-25 | 2003-08-25 | Chemical liquid switching system for medical syringe pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003341844A JP4319499B2 (en) | 2003-08-25 | 2003-08-25 | Chemical liquid switching system for medical syringe pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2005066285A true JP2005066285A (en) | 2005-03-17 |
| JP4319499B2 JP4319499B2 (en) | 2009-08-26 |
Family
ID=34419246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2003341844A Expired - Lifetime JP4319499B2 (en) | 2003-08-25 | 2003-08-25 | Chemical liquid switching system for medical syringe pump |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4319499B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010518975A (en) * | 2007-02-26 | 2010-06-03 | ケアフュージョン ３０３、インコーポレイテッド | Automatic relay pump system |
-
2003
- 2003-08-25 JP JP2003341844A patent/JP4319499B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010518975A (en) * | 2007-02-26 | 2010-06-03 | ケアフュージョン ３０３、インコーポレイテッド | Automatic relay pump system |
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| Publication number | Publication date |
|---|---|
| JP4319499B2 (en) | 2009-08-26 |
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