CN2274028Y - Automatic time-delay unit of external power-supply of electrocardiograph - Google Patents
Automatic time-delay unit of external power-supply of electrocardiograph Download PDFInfo
- Publication number
- CN2274028Y CN2274028Y CN 96228815 CN96228815U CN2274028Y CN 2274028 Y CN2274028 Y CN 2274028Y CN 96228815 CN96228815 CN 96228815 CN 96228815 U CN96228815 U CN 96228815U CN 2274028 Y CN2274028 Y CN 2274028Y
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- China
- Prior art keywords
- circuit
- time
- relay
- electrocardiograph
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Abstract
The utility model provides an automatic time delayer of the external power supply of an electrocardiograph machine. The structure is that the utility model is composed of a power circuit A, a delay circuit B and a control circuit C of a paper advance machine; the delay circuit B, the control circuit C of a paper advance machine and the direct current output terminal of the power circuit A are connected in parallel. The automatic time delayer of the external power supply of an electrocardiograph machine has the advantages that design is reasonable, structure is simple, process is easy, size is small, use is easy, the service life of an accumulator is effectively extended, the use rate of equipment is improved, etc.
Description
This utility model relates to a kind of medical apparatus and instruments, specifically a kind of electrocardiograph external power supply automatic time delay device.
A large amount of advanced persons', accurate, reliable modernized medical apparatus and instruments or instrument integrated application the biology in the modern science, the physics, chemistry, electronics, acoustics, optics, the corresponding theory of subjects such as system analysis engineering, method and technology detect processing, analyze the various information of human body (organism), use it for biomedical research, medical diagnosis, in each process of monitoring and treatment, electrocardiograph is exactly biomedical research, medical diagnosis, indispensable in each process of monitoring and treatment, a kind of important diagnostic instrument that utilization rate is the highest, this instrument is mainly used in the exciting potential difference that the partes corporis humani position is produced of the electricity of tracing atrium and ventricle to be changed, for the health status of medical worker's diagnosis of cardiovascular.In the medical research in modern times and clinical diagnosis, be mainly used in the function of checking heart and the prevention and the treatment of property angiopathy.At present the electrocardiograph that generally uses finds that in daily diagnosis and treatment are used the deficiency that exists is: use under the occasion in AC-less power with accumulator during as dc source, owing to do not have external direct current power supply automatically time-delay power-off device in the instrument, so after using electrocardiograph to finish under the occasion of no alternating current, tend to forget the cut-out dc source and make the accumulator over-discharge cause serious power shortage of battery or damage, because the employed accumulator of electrocardiograph is the high-grade battery of small size high power capacity, so behind the serious power shortage not only battery damage cause economic loss, and importantly doctor's normal Clinics and Practices is asked in influence.
The purpose of this utility model provide a kind of prevent battery feed can automatically time-delay power-off after start is used with protection with prolong the accumulator electrocardiograph external power supply automatic time delay device in service life.
The purpose of this utility model realizes in the following manner, on the external dry battery power of electrocardiograph, install the automatic time delay device that constitutes with 555 time-base integrated circuits and relay additional, when using, the start of electrocardiogram machine is as the criterion with the work of Electrocardiographic paper feed machine, electrocardiogram test finishes the medical worker when electrocardiogram paper is torn the research state of an illness, close the paper feed machine, chronotron is started working, relay is the electrocardiograph dump after time-delay a period of time, thereby plays saves energy, prolong the function of the life of storage battery.
Accompanying drawing 1 is the electrical block diagram of electrocardiograph external power supply automatic time delay device;
With reference to Figure of description to electrocardiograph external power supply automatic time-delay device of the present utility model do with Under explain.
Electrocardiograph external power supply automatic time-delay device of the present utility model, its structure is by power circuit A, delay circuit B and document feeder control circuit C consist of, delay circuit B, document feeder control electricity The DC output end of road C and power circuit A mutually and connect.
Power circuit A is by on and off switch K
1, K
2, transformator B, bridge rectifier Q and accumulator E
1Constitute K switch
1Be serially connected between the elementary winding of civil power and transformator B, the alternating current input of the secondary windings of transformator B and bridge rectifier Q joins, the cathode output end of bridge rectifier Q and double-point double-throw switch K
2Fixed contact 1 join fixed contact 2,3 and accumulator E
1Anodal mutually and connect movable contact 1 ' and relay J
1Contact switch J
1-1Join movable contact 2 ' and relay J
2Contact switch J
2-1The bridge-type of joining is cathode output end and the accumulator E of stream device Q eventually
1Negative pole join.
Paper feed machine control circuit C is by paper feed machine M, accumulator E
2, relay J
2And K switch
3Constitute paper feed machine M, accumulator E
2, relay J
2And K switch
3Formation work loop is serially connected.
Delay circuit B is by 555 time-base integrated circuit IC, relay J
1, capacitor C, C
2, resistance R
1, R
2Constitute, wherein 1 foot and the capacitor C of time-base integrated circuit IC
1, C
2Interface point and relay J
2Contact switch J
2-1Join 2 feet and the capacitor C of time-base integrated circuit IC
2With resistance R
2Between interface point join resistance R
2Join capacitor C with 5 feet of time-base integrated circuit IC
16,7 foot and resistance R with time-base integrated circuit IC
1Phase also connects, the 3 feet serial connection relay J of time-base integrated circuit IC
18,4 feet, resistance R with time-base integrated circuit IC
2And the negative pole of accumulator E1 joins.
Embodiment:
Its processing and fabricating of electrocardiograph external power supply automatic time delay device of the present utility model is very simple and convenient, and processing shown in the by specification accompanying drawing is installed and got final product.The work process of this chronotron is as follows:
Adopting 555 time-base integrated circuits in the electrocardiograph external power supply automatic time delay device of the present utility model is main devices, 555 integrated circuits are by the 12V single power supply, 1 foot connects the negative pole of accumulator, 8 feet connect the positive pole of accumulator, quiescent dissipation be 9-11mA (Vcc=15) or (Vcc-5V) the paper feed machine be two 12V dual power supplies.When appliance requires uses battery-operated, with double-point double-throw switch K
2Movable contact 1 ', 2 ' pull to fixed contact 2,3 and accumulator and connect the K switch in the paper feed machine control circuit
3When being in preparation 2 or observation place 3, relay J
2No current passes through, J
2Contact switch J
2-1Be in normally off, delay circuit work, R
1And C
1The delay time of time constant decision chronotron, delay time surpasses:
1.1 3 foot output low levels of 555 integrated circuits during * R1 * C1=1.1 * 1M * 200MF=242 second=4 minute, relay J
1Adhesive, normally-closed contact switch J
1-1The disconnection complete machine quits work.
K switch in paper feed machine control circuit
3Pull when record position 1 relay J
2Adhesive, normally closed some J
2-1Disconnect, delay circuit is not worked, relay J
1Be failure to actuate contact switch J
1-1Normally closed, the instrument operate as normal.When using alternating current work, double-point double-throw switch K
2Movable contact 1 ', 2 ' pull to fixed contact 1,4, delay circuit is cut off and does not work.
Electrocardiograph external power supply automatic time-delay device of the present utility model is compared with existing technology, and has Reasonable in design, simple in structure, be easy to processing, volume is little, easy to use, effectively protected and held Battery has improved the characteristics such as utilization rate of equipment, thereby, have good value for applications.
Except the described technical characterictic of specification, be the known technology of those skilled in the art.
Claims (4)
1. electrocardiograph external power supply automatic time delay device; Comprise power circuit A, delay circuit B and paper feed machine control circuit C, the DC output end that it is characterized in that delay circuit B, paper feed machine control circuit C and uninterrupted power supply circuit A mutually and connect.
2. electrocardiograph external power supply automatic time delay device according to claim 1 is characterized in that power circuit A is by on and off switch K
1, K
2, transformator B, bridge rectifier Q and accumulator E
1Constitute K switch
1Be serially connected between the elementary winding of civil power and transformator B, the alternating current input of the secondary windings of transformator B and bridge rectifier Q joins, the cathode output end of bridge rectifier Q and double-point double-throw switch K
2Fixed contact 1 join fixed contact 2,3 and accumulator E
1Anodal mutually and connect movable contact 1 ' and relay J
1Contact switch J
1-1Join movable contact 2 ' and relay J
2Contact switch J
2-1Join, bridge-type is cathode output end and the accumulator E of stream device Q eventually
1Negative pole join.
3. electrocardiograph external power supply automatic time delay device according to claim 1 is characterized in that paper feed machine control circuit C is by paper feed machine M, accumulator E
2Relay J
2And K switch constitutes paper feed machine M, accumulator E
2, relay J
2And K switch
3Formation work loop is serially connected.
4. electrocardiograph external power supply automatic time delay device according to claim 1 is characterized in that delay circuit B is by 555 time-base integrated circuit IC, relay J
1, capacitor C
1, C
2, resistance R
1, R
2Constitute, wherein 1 foot and the capacitor C of time-base integrated circuit IC
1, C
2Interface point and relay J
2Contact switch J
2-1Join 2 feet and the capacitor C of time-base integrated circuit IC
2With resistance R
2Between interface point join resistance R
2Join capacitor C with 5 feet of time-base integrated circuit IC
16,7 foot and resistance R with time-base integrated circuit IC
1Phase also connects, the 3 feet serial connection relay J of time-base integrated circuit IC
18,4 feet, resistance R with time-base integrated circuit IC
2And accumulator E
1Negative pole join.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96228815 CN2274028Y (en) | 1996-09-13 | 1996-09-13 | Automatic time-delay unit of external power-supply of electrocardiograph |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96228815 CN2274028Y (en) | 1996-09-13 | 1996-09-13 | Automatic time-delay unit of external power-supply of electrocardiograph |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2274028Y true CN2274028Y (en) | 1998-02-11 |
Family
ID=33906615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96228815 Expired - Fee Related CN2274028Y (en) | 1996-09-13 | 1996-09-13 | Automatic time-delay unit of external power-supply of electrocardiograph |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2274028Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103330559A (en) * | 2013-06-07 | 2013-10-02 | 北京丰拓生物技术有限公司 | Electrocardio measuring method, device and system |
-
1996
- 1996-09-13 CN CN 96228815 patent/CN2274028Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103330559A (en) * | 2013-06-07 | 2013-10-02 | 北京丰拓生物技术有限公司 | Electrocardio measuring method, device and system |
| CN103330559B (en) * | 2013-06-07 | 2016-06-01 | 北京丰拓生物技术有限公司 | Electrocardio measuring method, Apparatus and 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 |