CN104014050B - A kind of on-line monitoring system - Google Patents
A kind of on-line monitoring system Download PDFInfo
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- CN104014050B CN104014050B CN201410288742.9A CN201410288742A CN104014050B CN 104014050 B CN104014050 B CN 104014050B CN 201410288742 A CN201410288742 A CN 201410288742A CN 104014050 B CN104014050 B CN 104014050B
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Abstract
The present invention relates to a kind of on-line monitoring system, adopt step-by-step counting mode on-line monitoring patient fluid infusion's state, described monitoring system includes transfusion pulse counting equipment, drips speed on-Line Monitor Device and infusion monitoring terminal, described transfusion pulse counting equipment is connected with dripping speed on-Line Monitor Device, and described speed on-Line Monitor Device of dripping is connected with infusion monitoring terminal by cordless communication network；Transfusion pulse counting equipment gathers drips speed in step-by-step counting mode, drip speed on-Line Monitor Device and the collection signal of transfusion pulse counting equipment is converted into the signal of telecommunication, and it is transferred to infusion monitoring terminal by cordless communication network, infusion monitoring terminal receives the described signal of telecommunication, and it is dripped speed with the standard prestored compare, it may be judged whether normal.Compared with prior art, the present invention has the advantages such as safe and reliable, low-power consumption.
Description
Technical field
The present invention relates to on-line monitoring field, especially relate to a kind of on-line monitoring system.
Background technology
Current infusion is clinical application aspect is topmost approach.Having investigation display, the inpatient of more than 90% is required for adopting infusion.In recent years, the medical care problem that clinical transfusion causes has caused the extensive concern of professional person.
If there being the on-line monitoring system of a kind of transfusion state, can alert when transfusion is abnormal, and be transmitted by signal warning information is transferred to medical personnel's night shift room, then just can relatively improve the safety of infusion treatment.It addition, adopt on-line monitoring technique can be greatly saved manpower and time, strengthen science and the initiative of nurse job, all the period of time monitoring can be realized simultaneously, offer help for transfusion patient in time.
Existing infusion monitoring mode has following several:
1, probe-type monitoring: the transfusion monitoring method of early application is: probe is inserted in infusion bottle, owing to liquid medicine has electric conductivity, can form current loop with probe.When liquid level declines and during lower than the height of probe tip, this current loop will be destroyed.Corresponding alarm mechanism will start, and cuts off transfusion.Here it is probe-type monitoring method.The method has a problem in that the contradiction of cost and medical sanitary standard room in the application.If from reducing cost angle, probe just need to repeatedly use, and this does not just meet health care standard.So being rarely employed the method now to carry out monitoring transfusion state.
2, capacitance type liquid level detection method: capacitance type liquid level detection method can be used for detecting the height of liquid level in infusion bottle.The principle that realizes of the method is to utilize the signal excitation condenser type electric bridge of a certain frequency, due to capacitance sensor capacitance can along with in infusion bottle the change of the height of liquid level change, medical personnel can judge the height of residue liquid level by the amplitude of variation of capacitive battery bridge output signal.The shortcoming using capacitance type liquid level detection method is in that this monitoring device needs to be arranged on around infusion bottle, it has not been convenient to sufferer is walked about in infusion process.
3, check weighing method: check weighing method is the overall weight utilizing the device such as gravity sensor or spring to measure infusion bottle and medicine, due to the input human body of medicine in infusion process, the weight of infusion bottle and medicine can be gradually reduced, and when being relieved to the weight of setting, control circuit will be switched on.But owing to size specification and the use material of infusion bottle are different, the density of infusion medicine is also not quite similar, so only judge the progress of transfusion with weight, often causes very big error.
4, supersonic sounding: supersonic sounding has significantly high reliability, its implementation is at tube for transfusion two ends mounting ultrasonic sensor, calculate the transmission time difference of beam of sound in following current and adverse current both direction and can calculate flow, and then calculate transfusion speed and the liquid volume inputted.The shortcoming of supersonic sounding is in that use cost is too high, uses the method economic benefit low hospital.
Summary of the invention
Defect that the purpose of the present invention is contemplated to overcome above-mentioned prior art to exist and the on-line monitoring system of a kind of safe and reliable, low-power consumption is provided.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of on-line monitoring system, adopt step-by-step counting mode on-line monitoring patient fluid infusion's state, described monitoring system includes transfusion pulse counting equipment, drips speed on-Line Monitor Device and infusion monitoring terminal, described transfusion pulse counting equipment is connected with dripping speed on-Line Monitor Device, described fast on-Line Monitor Device of dripping is connected with infusion monitoring terminal by cordless communication network, and described infusion monitoring terminal includes the speed harvester and the speed alarm device that are connected；
Transfusion pulse counting equipment gathers drips speed in step-by-step counting mode, drip speed on-Line Monitor Device and the collection signal of transfusion pulse counting equipment is converted into the signal of telecommunication, and it is transferred to infusion monitoring terminal by cordless communication network, infusion monitoring terminal receives the described signal of telecommunication, and it is dripped speed with the standard prestored compare, judge whether normal, if it is not, then send warning.
Preferably, described transfusion pulse counting equipment includes convex lens, with the transfusion device of murphy's dropper and photoconductive resistance, described convex lens is arranged on the side of murphy's dropper, and described photoconductive resistance is provided with 2, snugly fits to convex lens the opposite side just to murphy's dropper.
Preferably, the focal length of described convex lens and the diameter of murphy's dropper match.
Preferably, a described speed on-Line Monitor Device of dripping includes light sensor passage, differential amplifier circuit, bandwidth-limited circuit, voltage comparator circuit and wireless signal transtation mission circuit, and described light sensor passage, differential amplifier circuit, bandwidth-limited circuit, voltage comparator circuit and wireless signal transtation mission circuit are sequentially connected with.
Preferably, described bandwidth-limited circuit includes high pass filter and low pass filter, described high pass filter and low pass filter series connection.
Preferably, the filtering passband of described bandwidth-limited circuit is 10-34Hz.
Preferably, described high pass filter and low pass filter are four-step filter.
Preferably, described cordless communication network is ZigBee communication network.
Preferably, described wireless signal transtation mission circuit is ZigBee transtation mission circuit.
Preferably, described transfusion pulse counting equipment and a speed on-Line Monitor Device are equipped with multiple.
Compared with prior art, the invention have the advantages that
(1) present invention utilizes nature light and light as light source, carries out optically focused by convex lens light to external world, during dripless drippage, optically focused focus drops on light-sensitive element, so being not related to photoemission, intrinsic power consumption can be greatly reduced, and possesses the suitability at different light intensity environment；
(2) present invention adopts photoconductive resistance, photoconductive resistance is flake structure, and convenient fixing, photoconductive resistance only has a photosensitive layer to be affected by light intensity, reduce the shielding requirements of terminal structure light source to external world, directly photosensitive layer is close to dropper, fixes with black belt；
(3) present invention introduces differential amplifier circuit in dripping speed on-Line Monitor Device, greatly reduces the extraneous light intensity change interference to signal, safety, reliably；
(4) bandwidth-limited circuit of the present invention adopts four-step filter, can signal be amplified further, so the amplitude of change in voltage also becomes apparent from during drips；
(5) present invention adopts ZigBee communication network, has low in energy consumption, safety, high reliability.
Accompanying drawing explanation
Fig. 1 is present configuration schematic diagram；
Fig. 2 is transfusion pulse counting equipment structural representation；
Fig. 3 is for dripping speed on-Line Monitor Device structural representation；
Fig. 4 is the circuit theory schematic diagram of differential amplifier circuit；
Fig. 5 is the circuit theory schematic diagram of voltage comparator circuit.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.The present embodiment is carried out premised on technical solution of the present invention, gives detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
As shown in Figure 1, a kind of on-line monitoring system, adopt step-by-step counting mode on-line monitoring patient fluid infusion's state, including transfusion pulse counting equipment 1, drip speed on-Line Monitor Device 2 and infusion monitoring terminal 3, transfusion pulse counting equipment 1 is connected with dripping speed on-Line Monitor Device 2, drips speed on-Line Monitor Device 2 and is connected with infusion monitoring terminal 3 by cordless communication network.Infusion monitoring terminal 3 is computer, and cordless communication network can be ZigBee communication network.Transfusion pulse counting equipment 1 gathers drips speed in step-by-step counting mode, drip speed on-Line Monitor Device 2 and the collection signal of transfusion pulse counting equipment 1 is converted into the signal of telecommunication, and it is transferred to infusion monitoring terminal 3 by cordless communication network, infusion monitoring terminal 3 receives the described signal of telecommunication, and it is dripped speed with the standard prestored compare, judge whether normal, if it is not, then send warning.
Transfusion pulse counting equipment 1 and a speed on-Line Monitor Device 2 are equipped with multiple, and multiple fast on-Line Monitor Device are connected with infusion monitoring terminal 3 respectively through ZigBee communication network, it is achieved monitor while multiple monitoring points.
As shown in Figure 2, transfusion pulse counting equipment 1 includes convex lens 11, with the transfusion device of murphy's dropper 12 and photoconductive resistance 13, described convex lens 11 is arranged on the side of murphy's dropper 12, described photoconductive resistance 13 is provided with 2, setting up and down, snugly fitting to convex lens 11 opposite side just to murphy's dropper 12, the photosensitive layer of photoconductive resistance 13 is close to dropper, is fixed with black belt.With natural light with light for light source irradiation convex lens 11, convex lens 11 light to external world carries out optically focused, and during dripless drippage, optically focused focus drops in photoconductive resistance 13.When there being drips to pass through, because drop is to scattering of light, the light good general that photoconductive resistance 13 receives changes, and is then equal to pulse counting method, drippage drop is counted, thus monitoring drips situation.
Selecting the factor mainly considered during convex lens is focal length and its outside diameter size, the focal length of convex lens 11 and the diameter of murphy's dropper match, as tested murphy's dropper diameter used at about 1.5cm, focal length can be selected at the convex lens of 1.5cm-2cm, and the outside diameter of convex lens is also selected between 1.5-2cm.
As shown in Figure 3, drip speed on-Line Monitor Device 2 and include light sensor passage 21, differential amplifier circuit 22, bandwidth-limited circuit 23, voltage comparator circuit 24 and wireless signal transtation mission circuit 25, described light sensor passage 21, differential amplifier circuit 22, bandwidth-limited circuit 23, voltage comparator circuit 24 and wireless signal transtation mission circuit 25 are sequentially connected with, and wireless signal transtation mission circuit 25 can be ZigBee transtation mission circuit.
As shown in Figure 4, the circuit amplification of this differential amplifier circuit is 51k Ω/10k Ω to the differential amplifier circuit 22 that the present embodiment adopts, namely 5.1 times.
Bandwidth-limited circuit 23 includes high pass filter and low pass filter, described high pass filter and low pass filter series connection.The filtering passband of bandwidth-limited circuit 23 is 10-34Hz.High pass filter and low pass filter are four-step filter.
The voltage comparator circuit 24 that the present embodiment adopts is as it is shown in figure 5, be designed based on single limit comparator circuit LM339, and as Uin > UREF, Uout is output as high level, i.e. VCC=3.3V.As Uin < UREF, Uout is output as low level, i.e. 0V.
Claims (9)
1. an on-line monitoring system, it is characterized in that, adopt step-by-step counting mode on-line monitoring patient fluid infusion's state, described monitoring system includes transfusion pulse counting equipment (1), drips speed on-Line Monitor Device (2) and infusion monitoring terminal (3), described transfusion pulse counting equipment (1) is connected with dripping speed on-Line Monitor Device (2), and described speed on-Line Monitor Device (2) of dripping is connected with infusion monitoring terminal (3) by cordless communication network；
Described transfusion pulse counting equipment (1) includes convex lens (11), transfusion device and photoconductive resistance (13) with murphy's dropper (12), described convex lens (11) is arranged on the side of murphy's dropper (12), described photoconductive resistance (13) is provided with 2, snugly fit to convex lens (11) opposite side just to murphy's dropper (12), with natural light with light for light source irradiation convex lens (11), convex lens (11) light to external world carries out optically focused, during dripless drippage, optically focused focus drops in photoconductive resistance (13)；
Transfusion pulse counting equipment (1) gathers drips speed in step-by-step counting mode, drip speed on-Line Monitor Device (2) and the collection signal of transfusion pulse counting equipment (1) is converted into the signal of telecommunication, and it is transferred to infusion monitoring terminal (3) by cordless communication network, infusion monitoring terminal (3) receives the described signal of telecommunication, and it is dripped speed with the standard prestored compare, judge whether normal, if it is not, then send warning.
2. a kind of on-line monitoring system according to claim 1, it is characterised in that the described focal length of convex lens (11) and the diameter of murphy's dropper match.
3. a kind of on-line monitoring system according to claim 1, it is characterized in that, a described speed on-Line Monitor Device (2) of dripping includes light sensor passage (21), differential amplifier circuit (22), bandwidth-limited circuit (23), voltage comparator circuit (24) and wireless signal transtation mission circuit (25), and described light sensor passage (21), differential amplifier circuit (22), bandwidth-limited circuit (23), voltage comparator circuit (24) and wireless signal transtation mission circuit (25) are sequentially connected with.
4. a kind of on-line monitoring system according to claim 3, it is characterised in that described bandwidth-limited circuit (23) includes high pass filter and low pass filter, described high pass filter and low pass filter series connection.
5. a kind of on-line monitoring system according to claim 3, it is characterised in that the filtering passband of described bandwidth-limited circuit (23) is 10-34Hz.
6. a kind of on-line monitoring system according to claim 4, it is characterised in that described high pass filter and low pass filter are four-step filter.
7. a kind of on-line monitoring system according to claim 1, it is characterised in that described cordless communication network is ZigBee communication network.
8. a kind of on-line monitoring system according to claim 3, it is characterised in that described wireless signal transtation mission circuit (25) is ZigBee transtation mission circuit.
9. a kind of on-line monitoring system according to claim 1, it is characterised in that described transfusion pulse counting equipment (1) and speed on-Line Monitor Device (2) are equipped with multiple.
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| CN201410288742.9A CN104014050B (en) | 2014-06-24 | 2014-06-24 | A kind of on-line monitoring system |
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| CN201410288742.9A CN104014050B (en) | 2014-06-24 | 2014-06-24 | A kind of on-line monitoring system |
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| CN104014050A CN104014050A (en) | 2014-09-03 |
| CN104014050B true CN104014050B (en) | 2016-07-06 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105435336A (en) * | 2014-09-29 | 2016-03-30 | 镇江石鼓文智能化系统开发有限公司 | Sickbed infusion monitoring system |
| CN104436366B (en) * | 2014-12-30 | 2017-08-29 | 广州视源电子科技股份有限公司 | Transfusion drip tube drop detection method and system |
| CN110743060B (en) * | 2019-10-31 | 2022-03-11 | 中国人民解放军陆军军医大学第一附属医院 | Multifunctional transfusion vehicle for children |
| CN112546343B (en) * | 2020-11-02 | 2022-10-18 | 福建星网物联信息系统有限公司 | Low-power-consumption infusion detection method, system and device |
| CN114324504B (en) * | 2021-12-02 | 2023-10-03 | 中国科学院深圳先进技术研究院 | Preparation method of liquid drop counting device based on charge storage material |
Citations (4)
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|---|---|---|---|---|
| US5331309A (en) * | 1990-02-06 | 1994-07-19 | Terumo Kabushiki Kaisha | Drip detecting device and drip alarming device and drip rate control device which incorporate drip detecting device |
| CN1562395A (en) * | 2004-04-08 | 2005-01-12 | 上海市卢湾区青少年活动中心 | Automatic system for monitoring transfusion |
| CN101396573A (en) * | 2007-09-28 | 2009-04-01 | 张海艇 | Transfusion monitoring and remote transmitting device |
| CN102614560A (en) * | 2012-04-17 | 2012-08-01 | 黄左宁 | Automatic controller for intravenous infusion liquid level of medical infusion bottle and control method thereof |
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2014
- 2014-06-24 CN CN201410288742.9A patent/CN104014050B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5331309A (en) * | 1990-02-06 | 1994-07-19 | Terumo Kabushiki Kaisha | Drip detecting device and drip alarming device and drip rate control device which incorporate drip detecting device |
| CN1562395A (en) * | 2004-04-08 | 2005-01-12 | 上海市卢湾区青少年活动中心 | Automatic system for monitoring transfusion |
| CN101396573A (en) * | 2007-09-28 | 2009-04-01 | 张海艇 | Transfusion monitoring and remote transmitting device |
| CN102614560A (en) * | 2012-04-17 | 2012-08-01 | 黄左宁 | Automatic controller for intravenous infusion liquid level of medical infusion bottle and control method thereof |
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