JPS63106448U - - Google Patents
Info
- Publication number
- JPS63106448U JPS63106448U JP19754886U JP19754886U JPS63106448U JP S63106448 U JPS63106448 U JP S63106448U JP 19754886 U JP19754886 U JP 19754886U JP 19754886 U JP19754886 U JP 19754886U JP S63106448 U JPS63106448 U JP S63106448U
- Authority
- JP
- Japan
- Prior art keywords
- intravenous
- tube
- container
- circuit
- light
- 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
- 238000001990 intravenous administration Methods 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 4
- 230000003287 optical effect Effects 0.000 claims description 4
- 238000005259 measurement Methods 0.000 claims description 2
- 239000003978 infusion fluid Substances 0.000 claims 6
- 238000001514 detection method Methods 0.000 claims 2
- 238000001802 infusion Methods 0.000 claims 1
- 239000007924 injection Substances 0.000 claims 1
- 238000002347 injection Methods 0.000 claims 1
- 230000001678 irradiating effect Effects 0.000 claims 1
- 210000003462 vein Anatomy 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
Description
第１図は本考案に係る点滴安全装置の一実施例
を示す破断断面図、第２図はその発光器および受
光器を内蔵するセンサーの断面図、第３図はその
制御回路を示す回路図、第４図は液滴が光軸を通
過する際に発光器からの光線がそれにより屈折し
、受光器に受け取らない理論と一例とを示す説明
図である。
１……点滴液、２……点滴液容器、４……チユ
ーブプラグ、５……通路、６……空気吸入通路、
７……球形ピストン、８……透明チユーブ、９…
…案内チユーブ、１０……センサー、１１……ケ
ーシング、１１ａ……切欠き、１２，１２′……
小孔、１３……赤外線発光器、１４……赤外線受
光器、１５，１６……時間計測ＩＣ，１７……ブ
ザー、２０……コンデンサー、２３……振動回路
、２４〜２８……トランジスター。
Fig. 1 is a cutaway cross-sectional view showing an embodiment of the drip safety device according to the present invention, Fig. 2 is a cross-sectional view of a sensor incorporating a light emitting device and a light receiver, and Fig. 3 is a circuit diagram showing its control circuit. , FIG. 4 is an explanatory diagram showing a theory and an example in which when a droplet passes through an optical axis, a light beam from a light emitter is refracted thereby and is not received by a light receiver. 1... Intravenous liquid, 2... Intravenous liquid container, 4... Tube plug, 5... Passage, 6... Air intake passage,
7... Spherical piston, 8... Transparent tube, 9...
...Guide tube, 10...Sensor, 11...Casing, 11a...Notch, 12, 12'...
Small hole, 13... Infrared emitter, 14... Infrared receiver, 15, 16... Time measurement IC, 17... Buzzer, 20... Capacitor, 23... Vibration circuit, 24-28... Transistor.
Claims (1)
プラグに設けたチユーブと、上記チユーブと注射
針間に設けた流量調節器とから成る点滴セツトを
介して点滴液容器から点滴液を患者の静脈に注射
して点滴を行う点滴装置用の安全装置に於いて、
下記(a)項乃至(g)項記載の構成要素から成ること
を特徴とする上記の点滴安全装置。 (a) 点滴液容器の開口に設けられ、上記容器
内の点滴液を滴下するための通路と、常時は閉じ
られ、容器内圧が大気圧より低下したときには外
気を供給するようピストンを介在させた通路とを
設けたチユーブプラグ。 (b) 上記チユーブプラグに連設され、上記点
滴液通路から滴下する点滴液を適量貯留する透明
チユーブ。 (c) 上記透明チユーブ内の点滴液が滴下する
通路に対応して透明チユーブ上に設けられ、上記
滴下する液滴通路と交差する光路に光を照射する
発光装置と、上記光路上に上記発光装置と対向し
て設けられる受光装置とから成るセンサー。 (d) 上記センサーの光路を液滴が落下して受
光装置への光を遮断したときに電流パルスを発生
するスイツチング回路。 (e) 上記スイツチング回路の出力パルス間の
時間を計測する回路。 (f) 上記計測回路による計測値とあらかじめ
定められた許容限界値とを比較し、前者が後者を
越えたとき、警報信号を発生する検知回路。 (g) 上記検知回路の出力信号に応動して警報
音を発するブザー。 (2) 上記センサーが電流パルスを発生する毎に
、上記計測回路のパルス集計記録をゼロにリセツ
トする実用新案登録請求の範囲第１項記載の点滴
安全装置。[Claims for Utility Model Registration] (1) Intravenous fluid is delivered through an infusion set consisting of a plug attached to an infusion fluid container, a tube provided on the plug, and a flow rate regulator provided between the tube and the injection needle. In the safety device for an intravenous drip device that injects intravenous fluid from a container into a patient's vein,
The above-mentioned drip safety device is characterized by comprising the components described in the following items (a) to (g). (a) A passage provided at the opening of the intravenous liquid container, through which the intravenous liquid in the container is dripped, and a piston interposed between the passageway, which is normally closed, and which supplies outside air when the internal pressure of the container drops below atmospheric pressure. A tube plug with a passageway. (b) A transparent tube that is connected to the tube plug and stores an appropriate amount of the intravenous fluid dripping from the intravenous fluid passageway. (c) a light-emitting device provided on the transparent tube corresponding to the path through which the intravenous fluid drips in the transparent tube, and irradiating light onto an optical path that intersects with the dripping path; and a light-emitting device on the optical path; A sensor consisting of a device and a light receiving device provided facing each other. (d) A switching circuit that generates a current pulse when a droplet falls down the optical path of the sensor and blocks light from reaching the light receiving device. (e) A circuit that measures the time between output pulses of the above switching circuit. (f) A detection circuit that compares the measured value by the above measurement circuit with a predetermined permissible limit value and generates an alarm signal when the former exceeds the latter. (g) A buzzer that emits an alarm sound in response to the output signal of the above detection circuit. (2) The drip safety device according to claim 1, which resets the pulse tally record of the measuring circuit to zero every time the sensor generates a current pulse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19754886U JPS63106448U (en) | 1986-12-24 | 1986-12-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19754886U JPS63106448U (en) | 1986-12-24 | 1986-12-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63106448U true JPS63106448U (en) | 1988-07-09 |
Family
ID=31157389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19754886U Pending JPS63106448U (en) | 1986-12-24 | 1986-12-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63106448U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01148272A (en) * | 1987-11-04 | 1989-06-09 | Critikon Inc | Spike for parenteral liquid container |
-
1986
- 1986-12-24 JP JP19754886U patent/JPS63106448U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01148272A (en) * | 1987-11-04 | 1989-06-09 | Critikon Inc | Spike for parenteral liquid container |
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