CN201791191U - Automatic transfusion caller - Google Patents
Automatic transfusion caller Download PDFInfo
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- CN201791191U CN201791191U CN2010205169973U CN201020516997U CN201791191U CN 201791191 U CN201791191 U CN 201791191U CN 2010205169973 U CN2010205169973 U CN 2010205169973U CN 201020516997 U CN201020516997 U CN 201020516997U CN 201791191 U CN201791191 U CN 201791191U
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Abstract
The utility model discloses an automatic transfusion caller, and belongs to a medicinal instrument. The automatic transfusion caller comprises a capacitive liquid level sensor, a capacitance detection circuit, an alarm output circuit and a power supply circuit; the capacitive liquid level sensor is connected with the capacitance detection circuit; the capacitance detection circuit is connected with the alarm output circuit; and the power supply circuit is connected with the capacitance detection circuit and the alarm output circuit. After the technical scheme is adopted, the automatic transfusion caller can automatically give an alarm when the liquor in a transfusion tube is to be used out.
Description
Technical field
This utility model relates to a kind of transfusion automatic calling unit, belongs to medical equipment.
Background technology
The patient often will run into transfusion in process is in hospital by hospital, just need the entourage to accompany and attend to, when good infusion process herb liquid soon carried, the entourage goes to get in touch medical personnel and handles, and the entourage neglects sometimes, forgets and notifies medical personnel just to be prone to accidents.
Summary of the invention
The purpose of this utility model provides the transfusion automatic calling unit that can report to the police automatically when a kind of medicinal liquid in tube for transfusion is about to use up.
The purpose of this utility model is achieved like this, a kind of transfusion automatic calling unit, comprise capacitance level transducer, capacitive detection circuit, warning output circuit and power circuit, capacitance level transducer is connected with capacitive detection circuit, capacitive detection circuit is connected with the warning output circuit, and power circuit is connected with the warning output circuit with capacitive detection circuit.
Capacitance level transducer described in the utility model is made up of clip 1, two 2,3, two leads 4,5 of Copper Foil, be stained with Copper Foil 2,3 on the two clamping plates of clip respectively, Copper Foil 2,3 connects lead 4,5 respectively, and the two clamping plates of clip 1 is clamped the dropping liquid observing tube 6 of transfusion pipe.
Capacitive detection circuit described in the utility model is by resistance R 201-R205, capacitor C 201-C204, C206, C207, chip U102, interface JZ202 forms, 1 of one end of resistance R 201 and chip U102,2, one end of 6 feet and capacitor C 201 is connected, the other end of resistance R 201,4 of chip U102,14,10 feet, one end of capacitor C 203 and resistance R 202, the end of R203 meets the power supply VCC of power circuit output jointly, electric capacity, 3 feet of the chip termination U102 of C202,5 feet of one chip termination U102 of capacitor C 204,8 feet of another chip termination U102 of the other end of capacitor C 204 and resistance R 202,12 of the other end of resistance R 203 and chip U102,1 foot of 13 foot connection interface JZ202,11 feet of one chip termination U102 of capacitor C 206,9 feet of one chip termination U102 of resistance R 204, one end of the other end of resistance R 204 and capacitor C 207, one end of resistance R 205 is connected with the warning output circuit, capacitor C 201, C202, C203, C206, the other end of C207, the other end of resistance R 205,7 feet of chip U102, the 2 foot common grounds of interface JZ202, the lead 4 of interface JZ202 and capacitance level transducer, 5 connect.
Warning output circuit described in the utility model is by resistance R 207-R213, potentiometer W201, diode D02, light emitting diode D207, D208, D209, audion Q201, Q202, chip U103, U205, relay J TX01, buzzer L1 and interface JZ205 form, 2 feet of chip U103 are connected with capacitive detection circuit, one end of resistance R 208 is connected with the end of potentiometer W201, the end of the other end connecting resistance R207 of potentiometer W201, the end of the adjustable side connecting resistance R212 of potentiometer W201,3 feet of one chip termination U103 of the other end of resistance R 212 and resistance R 213,1 foot of one chip termination U103 of the other end of resistance R 213 and resistance R 209, the anode of the other end sending and receiving optical diode D207 of resistance R 209, the negative electrode of light emitting diode D207 connects the base stage of audion Q201, the colelctor electrode of audion Q201, the negative electrode of light emitting diode D209, one end of the anode of diode D02 and capacitor C 8 is connected with an end of relay J TX01 coil, the negative electrode of the anode sending and receiving optical diode D208 of light emitting diode D209,2 feet of one chip termination U205 of the anode of light emitting diode D208 and resistance R 210, the end of the 3 foot connecting resistance R211 of chip U205, the base stage of another termination audion Q202 of resistance R 211, the colelctor electrode of audion Q202 connects the end of buzzer L1, the other end of buzzer L1, resistance R 207, the other end of R210, the other end of capacitor C 8, the negative electrode of diode D02,8 feet of the other end of relay J TX01 coil and chip U103 meet power supply VCC jointly, the other end of resistance R 208, audion Q201, the emitter stage of Q202, the 1 foot common ground of 4 feet of chip U103 and chip U205, the static contact of relay J TX01 is connected with 2 feet of interface JZ205, the movable contact of relay J TX01 is connected with 1 foot of interface JZ205, and interface JZ205 is connected with the berth calling set.
Power circuit described in the utility model is by transformator T21, diode D201-D204, capacitor C 211-C215, chip U207 and interface JZX21 form, 2 feet of 1 termination interface JZX21 of the input of transformator T21,1 foot of 2 termination interface JZX21 of transformator T21 input, interface JZX21 is connected with alternating current power supply 220V, 6 ends of transformator T21 outfan and the anode of diode D201, the negative electrode of D202 connects, 4 ends of transformator T21 outfan and the anode of diode D203, the negative electrode of D204 connects, diode D201, the negative electrode of D203 and capacitor C 211,1 foot of the chip termination U207 of C212,3 feet of chip U207 and capacitor C 213, C214, C215 connects back out-put supply VCC, diode D202, the anode of D204, capacitor C 211, the other end common ground of C215.
After this utility model adopts above technical scheme, when being about to use up, the medicinal liquid in tube for transfusion can report to the police automatically.
Description of drawings
Fig. 1 is a theory diagram of the present utility model.
Fig. 2 is a capacitance level transducer structure chart of the present utility model.
Fig. 3 is the electrical schematic diagram of capacitive detection circuit of the present utility model, warning output circuit and power circuit.
The specific embodiment
Capacitance level transducer: according to the capacity of parallel plate capacitor formula: in C=ε S/ (the 4 π kd) formula: C is a capacitance, and ε is the medium dielectric constant, S be pole plate over against area, d is the distance between pole plate, k is the electrostatic force constant.
DIELECTRIC CONSTANT is by medium decision between the two-plate.
When medicinal liquid was full of two interelectrode spaces, because the ε of water is big especially, the electric capacity of electrode was corresponding big especially, did not have medicinal liquid when resident when two interelectrode spaces, and the electric capacity of electrode is corresponding just smaller.
The dropping liquid observing tube that utilizes the medical infusion pipe utilizes a clip to be stained with two electrodes of two thin copper foils formations again and has just constituted noncontact medicinal liquid pick off as non-contacting liquid chambers.Vicarious, the corresponding capacitance variations that causes by the variation that detects the tube for transfusion herb liquid exactly, and be converted into an isolated plant of the signal of telecommunication.
Capacitive detection circuit chips U102 has adopted by dual time base circuit NE556 and has constituted.By resistance R 201, first time base circuit of capacitor C 201 and chip U102A constitutes multivibrator and produces successive multi-harmonic-oscillations signal, this signal is exported from 5 feet, be coupled to chip U102B Unit second through capacitor C 204, second time base circuit and resistance R 203, capacitive liquid level sensor circuit constitutes monostable circuit, liquid level in the capacitive liquid level sensor is high more, corresponding electric capacity is just big more, finally also big more in the time of time base circuit 9 feet output high level, through resistance R 204, the voltage that is obtained behind the RC charge-discharge circuit of capacitor C 207 and resistance R 205 is also just high more, and its output voltage is directly proportional with the electric capacity of pick off.
Warning output circuit chips U103 is double operational circuit LM358.The voltage signal of capacitive detection circuit inputs to the negative input end of amplifier through 2 feet of chip U103, the adjustable bleeder circuit that positive input terminal is made of resistance R 207, R208, potentiometer W201, to guarantee adjusting and adjusting of circuit working, also utilized resistance R 212, R213 to constitute Schmidt circuit simultaneously and guaranteed the reliable and stable of warning circuit work.
Alarm signal by sending into audion Q201 behind current-limiting resistance R209 and the light emitting diode D207, drags relay as the interlock control interface from the 1 foot output of chip U103 after audion Q201 promotes.2 ends of three end music transistor U205 are sent on another road, amplify the back promotion buzzer alarm signal of sounding through audion Q202.The sound of its buzzer enough arouses entourage's attention.Chip U205 is VC64.
The power circuit of this calling set is very simple, the 220V alternating current power supply is imported through interface JZX21, the bridge rectifier rectification that after transformator T21 blood pressure lowering, constitutes by 4 diodes, the unidirectional current that obtains is sent into 1 end of chip U207 and is sent by 3 ends after voltage stabilizing after capacitor C 211, C212 filtering, send into the back level again after capacitor C213, C214, C215 filtering.Chip U207 is the LM7806 three terminal regulator.
Claims (5)
- One kind the transfusion automatic calling unit, it is characterized in that comprising capacitance level transducer, capacitive detection circuit, warning output circuit and power circuit, capacitance level transducer is connected with capacitive detection circuit, capacitive detection circuit is connected with the warning output circuit, and power circuit is connected with the warning output circuit with capacitive detection circuit.
- 2. transfusion automatic calling unit according to claim 1, it is characterized in that described capacitance level transducer is made up of clip (1), two blocks of Copper Foils (2,3), two leads (4,5), be stained with Copper Foil (2,3) on the two clamping plates of clip respectively, Copper Foil (2,3) connects lead (4,5) respectively, and the two clamping plates of clip (1) is clamped the dropping liquid observing tube (6) of transfusion pipe.
- 3. transfusion automatic calling unit according to claim 1, it is characterized in that described capacitive detection circuit is by resistance R 201-R205, capacitor C 201-C204, C206, C207, chip U102, interface JZ202 forms, 1 of one end of resistance R 201 and chip U102,2, one end of 6 feet and capacitor C 201 is connected, the other end of resistance R 201,4 of chip U102,14,10 feet, one end of capacitor C 203 and resistance R 202, the end of R203 meets the power supply VCC of power circuit output jointly, 3 feet of one chip termination U102 of capacitor C 202,5 feet of one chip termination U102 of capacitor C 204,8 feet of another chip termination U102 of the other end of capacitor C 204 and resistance R 202,12 of the other end of resistance R 203 and chip U102,1 foot of 13 foot connection interface JZ202,11 feet of one chip termination U102 of capacitor C 206,9 feet of one chip termination U102 of resistance R 204, one end of the other end of resistance R 204 and capacitor C 207, one end of resistance R 205 is connected with the warning output circuit, capacitor C 201, C202, C203, C206, the other end of C207, the other end of resistance R 205,7 feet of chip U102, the 2 foot common grounds of interface JZ202, the lead (4 of interface JZ202 and capacitance level transducer, 5) connect.
- 4. transfusion automatic calling unit according to claim 1, it is characterized in that described warning output circuit is by resistance R 207-R213, potentiometer W201, diode D02, light emitting diode D207, D208, D209, audion Q201, Q202, chip U103, U205, relay J TX01, buzzer L1 and interface JZ205 form, 2 feet of chip U103 are connected with capacitive detection circuit, one end of resistance R 208 is connected with the end of potentiometer W201, the end of the other end connecting resistance R207 of potentiometer W201, the end of the adjustable side connecting resistance R212 of potentiometer W201,3 feet of one chip termination U103 of the other end of resistance R 212 and resistance R 213,1 foot of one chip termination U103 of the other end of resistance R 213 and resistance R 209, the anode of the other end sending and receiving optical diode D207 of resistance R 209, the negative electrode of light emitting diode D207 connects the base stage of audion Q201, the colelctor electrode of audion Q201, the negative electrode of light emitting diode D209, one end of the anode of diode D02 and capacitor C 8 is connected with an end of relay J TX01 coil, the negative electrode of the anode sending and receiving optical diode D208 of light emitting diode D209,2 feet of one chip termination U205 of the anode of light emitting diode D208 and resistance R 210, the end of the 3 foot connecting resistance R211 of chip U205, the base stage of another termination audion Q202 of resistance R 211, the colelctor electrode of audion Q202 connects the end of buzzer L1, the other end of buzzer L1, resistance R 207, the other end of R210, the other end of capacitor C 8, the negative electrode of diode D02,8 feet of the other end of relay J TX01 coil and chip U103 meet power supply VCC jointly, the other end of resistance R 208, audion Q201, the emitter stage of Q202, the 1 foot common ground of 4 feet of chip U103 and chip U205, the static contact of relay J TX01 is connected with 2 feet of interface JZ205, the movable contact of relay J TX01 is connected with 1 foot of interface JZ205, and interface JZ205 is connected with the berth calling set.
- 5. transfusion automatic calling unit according to claim 1, it is characterized in that described power circuit is by transformator T21, diode D201-D204, capacitor C 211-C215, chip U207 and interface JZX21 form, 2 feet of 1 termination interface JZX21 of the input of transformator T21,1 foot of 2 termination interface JZX21 of transformator T21 input, interface JZX21 is connected with alternating current power supply 220V, 6 ends of transformator T21 outfan and the anode of diode D201, the negative electrode of D202 connects, 4 ends of transformator T21 outfan and the anode of diode D203, the negative electrode of D204 connects, diode D201, the negative electrode of D203 and capacitor C 211,1 foot of the chip termination U207 of C212,3 feet of chip U207 and capacitor C 213, C214, C215 connects back out-put supply VCC, diode D202, the anode of D204, capacitor C 211, the other end common ground of C215.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205169973U CN201791191U (en) | 2010-09-06 | 2010-09-06 | Automatic transfusion caller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205169973U CN201791191U (en) | 2010-09-06 | 2010-09-06 | Automatic transfusion caller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201791191U true CN201791191U (en) | 2011-04-13 |
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ID=43846110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205169973U Expired - Fee Related CN201791191U (en) | 2010-09-06 | 2010-09-06 | Automatic transfusion caller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201791191U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103083753A (en) * | 2013-03-05 | 2013-05-08 | 西安华舜测量设备有限责任公司 | Capacitor-type drip liquid level monitoring and alarm device |
| CN104740722A (en) * | 2015-03-30 | 2015-07-01 | 赵英俊 | Automatic transfusion management system |
| CN105477741A (en) * | 2016-01-26 | 2016-04-13 | 南京信息工程大学 | Transfusion reminding device and method |
| CN107519558A (en) * | 2017-10-25 | 2017-12-29 | 湖南水口山有色金属集团有限公司 | A kind of infusion alarm system |
-
2010
- 2010-09-06 CN CN2010205169973U patent/CN201791191U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103083753A (en) * | 2013-03-05 | 2013-05-08 | 西安华舜测量设备有限责任公司 | Capacitor-type drip liquid level monitoring and alarm device |
| CN104740722A (en) * | 2015-03-30 | 2015-07-01 | 赵英俊 | Automatic transfusion management system |
| CN104740722B (en) * | 2015-03-30 | 2017-12-05 | 赵英俊 | Automatic infusion management system |
| CN105477741A (en) * | 2016-01-26 | 2016-04-13 | 南京信息工程大学 | Transfusion reminding device and method |
| CN107519558A (en) * | 2017-10-25 | 2017-12-29 | 湖南水口山有色金属集团有限公司 | A kind of infusion alarm system |
| CN107519558B (en) * | 2017-10-25 | 2021-05-11 | 湖南水口山有色金属集团有限公司 | Infusion alarm system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110413 Termination date: 20110906 |