CN200951235Y - Electric capacity intelligent sensing device for automatic control system for intravenous drip - Google Patents
Electric capacity intelligent sensing device for automatic control system for intravenous drip Download PDFInfo
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- CN200951235Y CN200951235Y CN 200620098610 CN200620098610U CN200951235Y CN 200951235 Y CN200951235 Y CN 200951235Y CN 200620098610 CN200620098610 CN 200620098610 CN 200620098610 U CN200620098610 U CN 200620098610U CN 200951235 Y CN200951235 Y CN 200951235Y
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Abstract
The utility model provides a capacitive intelligent sensor with an automatic monitored control system for intravenous infusion, which can monitor the variation of the flow in infusion tube. Wherein, a sensor-detecting circuit with a microprocessor can detect the variation of the flow and send an alarm control signal through an interior interface according to the variation of the flow detected. The utility model has the advantages of convenient installation and utilization, good reliability, high performance-price ratio and health and safety, etc, and can be applicable to not only individual infusion in common family, but also center monitor in infusion room of hospital.
Description
Technical field
This utility model relates to the electron medical treatment technical field, and it provides a kind of condenser type intelligence sensor for the intravenous drip automatic monitored control system.
Background technology
In use there is inconvenience in existing garter syringe, and whole process need has the people to nurse, and constantly notes injection surplus in the transfusion bottle, so that in time change dressings and pull out syringe needle.When the care-giver takes place very easily to have an accident when sleepy.The employing that existing intravenous drip automatic monitoring device has is machinery such as spring scale for example, but its accuracy is difficult to guarantee; Have be installed to the garter syringe after can cause the difficulty of medical personnel to injector operations or observation, thereby limited their popularization greatly.
The utility model content
Press for the intravenous drip automatic monitored control system of developing a kind of novel practical at the problems referred to above, it can in time notify the care-giver when instillation closes to an end, and avoids accident to take place.The key technology of intravenous drip automatic monitored control system is a sensor technology.This utility model provides a kind of condenser type intelligence sensor, comprising: a parallel plate condenser as the sensor sensing element, and two pole plates of this capacitor are placed in this section tube for transfusion both sides between Mo Feishi dropper and the infusion bottle contact pin; A sensor detection circuit detects the electric capacitance change of bringing by the injection changes in flow rate of this section tube for transfusion between two pole plates of described capacitor, and produces corresponding alarm control signal according to the detection electric capacitance change.
Description of drawings
Fig. 1 is the view of installing and using of this utility model sensing element capacitor.
Fig. 2 is the internal structure sketch map of this utility model tube for transfusion clamping device
Fig. 3 is a sensor detection circuit schematic diagram of the present utility model.
The specific embodiment
Below in conjunction with drawings and Examples, this utility model is described in further detail:
As illustrated in fig. 1 and 2, two pole plates 7 of capacitor are a bending curvature with the tube for transfusion circular arc degree that coincide, the exterior arc surface of two pole plates 7 is pasted on two folder body inner surfacies of a tube for transfusion clamping device 3, one side of two folder bodies is connected by spring hinge 5, one side of spring hinge 5 is established handle 4, thereby utilizes two pole plate 7 fixed in position this section tube for transfusion 8 both sides Mo Feishi dropper 2 and infusion bottle 1 between of the spring hinge 5 strength realization of clamping device 3 with capacitor.Two pole plates 7 of capacitor insert sensor detection circuit by two shielding lines that are attached thereto respectively 6.By the capacitor principle as can be known, the dielectric constant of medium is relevant between capacitance and capacitor plate, medium constitutes by containing the more injection of moisture, air and transfusion sebific duct between capacitor plate of the present utility model, the dielectric constant of air and sebific duct is much smaller than containing the more injection of moisture between pole plate, and flowing through, the injection changes in flow rate of this section tube for transfusion can cause the capacitance significant change between two pole plates of described capacitor.The capacitor sensor structure that this utility model utilizes medium to form can solve the measurement of injection changes in flow rate effectively, and have easy for installation, highly sensitive, response is fast and advantages such as good reliability.
Sensor detection circuit of the present utility model is made of following several parts: capacitor signal modulate circuit, A/D change-over circuit, microprocessor and interface circuit are formed.
Among Fig. 3, capacitor signal modulate circuit of the present utility model has comprised that measuring circuit U1, the active low-pass filter U2 of ICL8038 sine-wave generator circuit, sensing element capacitor CAa and in-phase amplifier U3 form.U1 measures the variation of the CAa capacitance that causes owing to the injection changes in flow rate, and the sinusoidal voltage amplitude of U1 output is proportional to CAa.The output signal of ICL8038 sine-wave generator circuit is the driving source of the measuring circuit U1 of CAa, and this output signal is through the access U1 of capacitor C Aa input.The outfan of U1 is connected to the input of source low pass filter U2, the A/D converter AD574 input of the output of U2 in in-phase amplifier U3 access A/D change-over circuit, the P2P3I/O mouth of the outfan of AD574 and corresponding controling end and microprocessor 8051 joins, and microprocessor 8051 can read in AD574 mould/number conversion result and these data made respective algorithms such as filtering and handle by the P2I/O mouth.Microprocessor 8051 can send alarm control signal through interface circuit.Interface circuit is made up of control circuit and communicating circuit.8051 serial ports links to each other with the wireless communication module PTR2000 data terminal of communicating circuit, P1.6I/O foot output control signal by 8051 realizes wireless communication module PTR2000 transmitting-receiving conversion, and microprocessor 8051 can mail to nurse's night shift room to alarm signal by communicating circuit.Control circuit mainly constitutes by driving audion T1, T1 and relay R ELAY1, RELAY2, driving the audion outfan links to each other with relay coil, its input links to each other with 8051 I/O foot, and microprocessor 8051 can directly drive audible-visual annunciator or drive corresponding performing structure blocking-up tube for transfusion by control circuit.
Claims (5)
1. condenser type intravenous drip automatic monitored control system intelligence sensor comprises: a capacitor as the sensor sensing element, and two pole plates of this capacitor are placed in this section tube for transfusion both sides between Mo Feishi dropper and the infusion bottle contact pin; A sensor detection circuit detects the electric capacitance change of bringing by the injection changes in flow rate of this section tube for transfusion between two pole plates of described capacitor, and produces corresponding alarm signal according to the detection electric capacitance change.
2. condenser type intravenous drip automatic monitored control system intelligence sensor according to claim 1, it is characterized in that: described sensor detection circuit is made up of capacitor signal modulate circuit, A/D change-over circuit, microprocessor and interface circuit, the outfan of capacitor signal modulate circuit connects the input of A/D change-over circuit, the outfan of A/D change-over circuit is connected microprocessor I/O foot with control end, the interface circuit input connects microprocessor I/O foot.
3. condenser type intravenous drip automatic monitored control system intelligence sensor according to claim 1 and 2, it is characterized in that: the capacitor signal modulate circuit is by the sine-wave generator circuit, capacitor measurement circuit, active low-pass filter and in-phase amplifier are formed, the output signal of sine-wave generator circuit inserts the capacitor measurement circuit input through capacitor, the capacitor measurement circuit outfan is connected to the input of source low pass filter, the outfan of active low-pass filter links to each other with the in-phase amplifier input, and the in-phase amplifier outfan connects the input of A/D change-over circuit.
4. condenser type intravenous drip automatic monitored control system intelligence sensor according to claim 1 and 2, it is characterized in that: interface circuit is made up of control circuit and communicating circuit, the control circuit input links to each other with the I/O foot of microprocessor, and the input of communicating circuit is connected microprocessor I/O foot with control end.
5. condenser type intravenous drip automatic monitored control system intelligence sensor according to claim 1 and 2, it is characterized in that: be provided with a tube for transfusion clamping device, one side of two folder bodies of this device is connected by spring hinge, one side of spring hinge is established handle, be a bending curvature and be pasted on two folder body inner surfacies of this tube for transfusion clamping device respectively with its exterior arc surface, thereby utilize the spring hinge strength of clamping device to realize this section tube for transfusion both sides of two pole plate fixed in position between Mo Feishi dropper and infusion bottle contact pin capacitor with two capacitor plates of the tube for transfusion circular arc degree that coincide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620098610 CN200951235Y (en) | 2006-08-22 | 2006-08-22 | Electric capacity intelligent sensing device for automatic control system for intravenous drip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620098610 CN200951235Y (en) | 2006-08-22 | 2006-08-22 | Electric capacity intelligent sensing device for automatic control system for intravenous drip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200951235Y true CN200951235Y (en) | 2007-09-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620098610 Expired - Fee Related CN200951235Y (en) | 2006-08-22 | 2006-08-22 | Electric capacity intelligent sensing device for automatic control system for intravenous drip |
Country Status (1)
| Country | Link |
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| CN (1) | CN200951235Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102526837A (en) * | 2012-01-18 | 2012-07-04 | 李益民 | Transfusion speed monitoring technology |
| CN103984366A (en) * | 2014-05-29 | 2014-08-13 | 胡达广 | Automatic capacitance micro flow control device |
| CN105025809A (en) * | 2013-03-15 | 2015-11-04 | C·R·巴德股份有限公司 | Urine monitoring systems and methods |
| CN107224633A (en) * | 2017-07-19 | 2017-10-03 | 南京信息职业技术学院 | It is a kind of that there is the safe transfusion device for pulling out pin function automatically |
| US11703365B2 (en) | 2020-07-14 | 2023-07-18 | C. R. Bard, Inc. | Automatic fluid flow system with push-button connection |
| US11911160B2 (en) | 2018-08-10 | 2024-02-27 | C. R. Bard, Inc. | Automated urine output measurement systems and methods thereof |
| US11931151B2 (en) | 2020-12-22 | 2024-03-19 | C. R. Bard, Inc. | Automated urinary output measuring system |
| US11938277B2 (en) | 2018-05-22 | 2024-03-26 | C. R. Bard, Inc. | Catheterization system and methods for use thereof |
-
2006
- 2006-08-22 CN CN 200620098610 patent/CN200951235Y/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102526837A (en) * | 2012-01-18 | 2012-07-04 | 李益民 | Transfusion speed monitoring technology |
| CN102526837B (en) * | 2012-01-18 | 2013-10-02 | 李益民 | Transfusion speed monitoring technology |
| CN105025809A (en) * | 2013-03-15 | 2015-11-04 | C·R·巴德股份有限公司 | Urine monitoring systems and methods |
| CN103984366A (en) * | 2014-05-29 | 2014-08-13 | 胡达广 | Automatic capacitance micro flow control device |
| CN103984366B (en) * | 2014-05-29 | 2017-01-11 | 卢碧娴 | Automatic capacitance micro flow control device |
| CN107224633A (en) * | 2017-07-19 | 2017-10-03 | 南京信息职业技术学院 | It is a kind of that there is the safe transfusion device for pulling out pin function automatically |
| CN107224633B (en) * | 2017-07-19 | 2023-03-14 | 南京信息职业技术学院 | Safe infusion set with automatically, pull out needle function |
| US11938277B2 (en) | 2018-05-22 | 2024-03-26 | C. R. Bard, Inc. | Catheterization system and methods for use thereof |
| US11911160B2 (en) | 2018-08-10 | 2024-02-27 | C. R. Bard, Inc. | Automated urine output measurement systems and methods thereof |
| US11703365B2 (en) | 2020-07-14 | 2023-07-18 | C. R. Bard, Inc. | Automatic fluid flow system with push-button connection |
| US11931151B2 (en) | 2020-12-22 | 2024-03-19 | C. R. Bard, Inc. | Automated urinary output measuring system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |