CN203935183U - A kind of for leading of electrocardiograph monitoring device come off detect dress - Google Patents
A kind of for leading of electrocardiograph monitoring device come off detect dress Download PDFInfo
- Publication number
- CN203935183U CN203935183U CN201420222574.9U CN201420222574U CN203935183U CN 203935183 U CN203935183 U CN 203935183U CN 201420222574 U CN201420222574 U CN 201420222574U CN 203935183 U CN203935183 U CN 203935183U
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- China
- Prior art keywords
- operational amplifier
- adjustable resistance
- circuit
- monitoring device
- outfan
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- 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.)
- Expired - Fee Related
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- Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
- Measuring And Recording Apparatus For Diagnosis (AREA)
Abstract
A kind of checkout gear that comes off that leads for electrocardiograph monitoring device, it comprises by the first operational amplifier OP1 and forms differential amplifier circuit, form window comparator circuit by the second operational amplifier OP2, the 3rd operational amplifier OP3, the first adjustable resistance RW1, the second adjustable resistance RW2, the first diode D1 and the second diode D2, and form warning circuit by the 3rd adjustable resistance RW3, light emitting diode D3 with door G1.First by differential amplifier circuit, the voltage after to preposition amplification amplifies rear input window comparator to this utility model, in the time that voltage exceeds the window ranges of window comparator, think that generating electrodes comes off, the high level of window comparator output level when normal becomes low level, thereby drives warning circuit to produce alarm signal.This utility model is simple in structure, easy to use and reliable, and can judge fast leads comes off and reports to the police, thereby ensures the reliability of electrocardiograph monitoring device diagnostic result.
Description
Technical field
This utility model relates to medical weak biological electrical signal collection detection technique field, specifically a kind of checkout gear that comes off that leads for electrocardiograph monitoring device.
Background technology
At present, electrocardiogram monitor is the classical conventional instrument that hospital is generally used, it mainly comprises ecg signal acquiring circuit, pre-amplification circuit and follow-up electrocardiosignal treatment circuit, use safety, can be in real time, accurately, the variation of the basic electric-physiology parameter of detection of dynamic patient for a long time, and can record exactly and analyze, for treating and rescue to provide effectively, medical personnel help.
But patient likely leads loosening and comes off in the time using electrocardiogram monitor, this will introduce very large interference, cause ecg wave form distortion, make ECG monitor terminal be difficult to export actual waveform, thereby cause the false judgment to electrocardiosignal, affect diagnostic result.
Utility model content
For above-mentioned deficiency, this utility model provides a kind of checkout gear that comes off that leads for electrocardiograph monitoring device, and it can judge fast to lead and come off and report to the police, thereby ensures the reliability of electrocardiograph monitoring device diagnostic result.
This utility model solves the technical scheme that its technical problem adopts: a kind of checkout gear that comes off that leads for electrocardiograph monitoring device, it is characterized in that, comprise differential amplifier circuit, window comparator circuit and warning circuit, the input of described differential amplifier circuit is connected with the outfan of the pre-amplification circuit of electrocardiograph monitoring device, outfan is connected with the input of window comparator circuit, and the outfan of described window comparator circuit is connected with warning circuit.
Further, of the present utility model a kind of for leading of electrocardiograph monitoring device come off checkout gear comprise the first operational amplifier OP1, the second operational amplifier OP2, the 3rd operational amplifier OP3, the first adjustable resistance RW1, the second adjustable resistance RW2, the 3rd adjustable resistance RW3, the first diode D1, the second diode D2, light emitting diode D3 and with door G1; The outfan of described the first positive input of operational amplifier OP1 and the pre-amplification circuit of electrocardiograph monitoring device is connected, and outfan is connected with reverse input end, the positive input of the second operational amplifier OP2 and the reverse input end of the 3rd operational amplifier OP3 of the first operational amplifier OP1 respectively; The positive input of the reverse input end of the second operational amplifier OP2 and the 3rd operational amplifier OP3 is connected with the adjustable end of the first adjustable resistance RW1 and the adjustable end of the second adjustable resistance RW2 respectively, described the first adjustable resistance RW1 and the second adjustable resistance RW2 form series circuit, and series circuit two ends connect respectively generating positive and negative voltage and be connected with isoelectric level between the first adjustable resistance RW1 and the second adjustable resistance RW2; The outfan of the outfan of the second operational amplifier OP2 and the 3rd operational amplifier OP3 first diode D1 that connects is respectively connected with one end of the 3rd adjustable resistance RW3 with after the second diode D2; The other end of described the 3rd adjustable resistance RW3 connects isoelectric level, adjustable end be connected with the input of door G1, the described light emitting diode D3 that connects with the outfan of a G1.
Preferably, outfan described and door G1 is also in series with buzzer, and described buzzer is connected with light emitting diode D3.
Preferably, the first described operational amplifier OP1, the second operational amplifier OP2 and the 3rd operational amplifier OP3 all adopt LM324 integrated circuit.
Preferably, described and door G1 adopts a SN74F08D chip.
The utlity model has following outstanding beneficial effect: under normal circumstances, the polarizing voltage that the positive and negative electrode of electrocardiograph monitoring device forms human body skin can be cancelled out each other, in the time that a lateral electrode comes off, larger polarizing voltage input will be had, voltage after preposition amplification by considerably beyond normal connect time voltage range, therefore, first by differential amplifier circuit, the voltage after to preposition amplification amplifies rear input window comparator to this utility model, in the time that voltage exceeds the window ranges of window comparator, think that generating electrodes comes off, the high level of window comparator output level when normal becomes low level, thereby drive warning circuit to produce alarm signal.This utility model is simple in structure, easy to use and reliable, and can judge fast leads comes off and reports to the police, thereby ensures the reliability of electrocardiograph monitoring device diagnostic result.
Brief description of the drawings
Below in conjunction with accompanying drawing, the utility model is described in further detail:
Fig. 1 is schematic circuit of the present utility model.
Detailed description of the invention
As shown in Figure 1, of the present utility model
The outfan of described the first positive input of operational amplifier OP1 and the pre-amplification circuit of electrocardiograph monitoring device is connected, and outfan is connected with reverse input end, the positive input of the second operational amplifier OP2 and the reverse input end of the 3rd operational amplifier OP3 of the first operational amplifier OP1 respectively; The positive input of the reverse input end of the second operational amplifier OP2 and the 3rd operational amplifier OP3 is connected with the adjustable end of the first adjustable resistance RW1 and the adjustable end of the second adjustable resistance RW2 respectively, described the first adjustable resistance RW1 and the second adjustable resistance RW2 form series circuit, and series circuit two ends connect respectively generating positive and negative voltage and be connected with isoelectric level between the first adjustable resistance RW1 and the second adjustable resistance RW2; The outfan of the outfan of the second operational amplifier OP2 and the 3rd operational amplifier OP3 first diode D1 that connects is respectively connected with one end of the 3rd adjustable resistance RW3 with after the second diode D2; The other end of described the 3rd adjustable resistance RW3 connects isoelectric level, adjustable end be connected with the input of door G1, the described light emitting diode D3 that connects with the outfan of a G1.Wherein, described the first operational amplifier OP1, the second operational amplifier OP2 and the 3rd operational amplifier OP3 all adopt LM324 integrated circuit, and described and door G1 adopts a SN74F08D chip.
Further, a kind of checkout gear that comes off that leads for electrocardiograph monitoring device shown in Fig. 1, outfan described and door G1 is also in series with buzzer, in order to report to the police by sound.
It should be noted that illustrated parts are not necessarily drawn in proportion in the accompanying drawings.This utility model has omitted the description of known assemblies and treatment technology and technique to avoid unnecessarily limiting this utility model.
The above is preferred implementation of the present utility model; for those skilled in the art; not departing under the prerequisite of this utility model principle, can also make some improvements and modifications, these improvements and modifications are also regarded as protection domain of the present utility model.
Claims (5)
1. the checkout gear that comes off that leads for electrocardiograph monitoring device, it is characterized in that, comprise differential amplifier circuit, window comparator circuit and warning circuit, the input of described differential amplifier circuit is connected with the outfan of the pre-amplification circuit of electrocardiograph monitoring device, outfan is connected with the input of window comparator circuit, and the outfan of described window comparator circuit is connected with warning circuit.
2. a kind of checkout gear that comes off that leads for electrocardiograph monitoring device according to claim 1, it is characterized in that, comprise the first operational amplifier OP1, the second operational amplifier OP2, the 3rd operational amplifier OP3, the first adjustable resistance RW1, the second adjustable resistance RW2, the 3rd adjustable resistance RW3, the first diode D1, the second diode D2, light emitting diode D3 and with door G1; The outfan of described the first positive input of operational amplifier OP1 and the pre-amplification circuit of electrocardiograph monitoring device is connected, and outfan is connected with reverse input end, the positive input of the second operational amplifier OP2 and the reverse input end of the 3rd operational amplifier OP3 of the first operational amplifier OP1 respectively; The positive input of the reverse input end of the second operational amplifier OP2 and the 3rd operational amplifier OP3 is connected with the adjustable end of the first adjustable resistance RW1 and the adjustable end of the second adjustable resistance RW2 respectively, described the first adjustable resistance RW1 and the second adjustable resistance RW2 form series circuit, and series circuit two ends connect respectively generating positive and negative voltage and be connected with isoelectric level between the first adjustable resistance RW1 and the second adjustable resistance RW2; The outfan of the outfan of the second operational amplifier OP2 and the 3rd operational amplifier OP3 first diode D1 that connects is respectively connected with one end of the 3rd adjustable resistance RW3 with after the second diode D2; The other end of described the 3rd adjustable resistance RW3 connects isoelectric level, adjustable end be connected with the input of door G1, the described light emitting diode D3 that connects with the outfan of a G1.
3. a kind of checkout gear that comes off that leads for electrocardiograph monitoring device according to claim 2, is characterized in that, outfan described and door G1 is also in series with buzzer, and described buzzer is connected with light emitting diode D3.
4. according to a kind of checkout gear that comes off that leads for electrocardiograph monitoring device described in claim 2 or 3, it is characterized in that, described the first operational amplifier OP1, the second operational amplifier OP2 and the 3rd operational amplifier OP3 all adopt LM324 integrated circuit.
5. according to a kind of checkout gear that comes off that leads for electrocardiograph monitoring device described in claim 2 or 3, it is characterized in that, described and door G1 adopts a SN74F08D chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420222574.9U CN203935183U (en) | 2014-05-04 | 2014-05-04 | A kind of for leading of electrocardiograph monitoring device come off detect dress |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420222574.9U CN203935183U (en) | 2014-05-04 | 2014-05-04 | A kind of for leading of electrocardiograph monitoring device come off detect dress |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203935183U true CN203935183U (en) | 2014-11-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420222574.9U Expired - Fee Related CN203935183U (en) | 2014-05-04 | 2014-05-04 | A kind of for leading of electrocardiograph monitoring device come off detect dress |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203935183U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104000582A (en) * | 2014-05-04 | 2014-08-27 | 山东中医药大学 | Lead falling detection device for electrocardiogram monitoring device |
| CN107132502A (en) * | 2017-05-09 | 2017-09-05 | 无锡市恒通电器有限公司 | A kind of RS485 communication test devices of electric energy meter |
| CN111026227A (en) * | 2019-12-24 | 2020-04-17 | 兰州飞行控制有限责任公司 | Stroke limiting circuit of adjusting sheet effect mechanism of elevator |
| CN116509412A (en) * | 2023-06-26 | 2023-08-01 | 安徽硕金医疗设备有限公司 | Electrocardiogram monitor |
-
2014
- 2014-05-04 CN CN201420222574.9U patent/CN203935183U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104000582A (en) * | 2014-05-04 | 2014-08-27 | 山东中医药大学 | Lead falling detection device for electrocardiogram monitoring device |
| CN107132502A (en) * | 2017-05-09 | 2017-09-05 | 无锡市恒通电器有限公司 | A kind of RS485 communication test devices of electric energy meter |
| CN111026227A (en) * | 2019-12-24 | 2020-04-17 | 兰州飞行控制有限责任公司 | Stroke limiting circuit of adjusting sheet effect mechanism of elevator |
| CN116509412A (en) * | 2023-06-26 | 2023-08-01 | 安徽硕金医疗设备有限公司 | Electrocardiogram monitor |
| CN116509412B (en) * | 2023-06-26 | 2023-09-22 | 安徽硕金医疗设备有限公司 | Electrocardiogram monitor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141112 Termination date: 20180504 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |