CN2478540Y - Palm computer type electrocardiograph - Google Patents
Palm computer type electrocardiograph Download PDFInfo
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- CN2478540Y CN2478540Y CN 01227015 CN01227015U CN2478540Y CN 2478540 Y CN2478540 Y CN 2478540Y CN 01227015 CN01227015 CN 01227015 CN 01227015 U CN01227015 U CN 01227015U CN 2478540 Y CN2478540 Y CN 2478540Y
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Abstract
The utility model relates to a personal digital assistant type electro-cardiograph, which is composed of a personal digital assistant and an electro-cardiograph sending electrode. The utility model is characterized in that: the utility model also comprises a sampling output circuit, which is provided with an amplifying circuit, an A/D transducer, a central processing unit and a level switching circuit. The input end of the amplifying circuit is electrode signal input, and the level is transferred and sent out as RS232 standard signal to connect the relevant port of the personal digital assistant. The utility model is provided with low cost, great function, convenient carrying and usage and the other advantages.
Description
This utility model relates to a kind of electrocardiograph.
Existing cardiograph mainly is independent special equipment, belongs to the Medical Instruments category, mainly comprises following several:
1. routine electrocardiogram machine: this electrocardiograph commonly used is applicable to the hospital clinical inspection, and it is bulky, and adnexa is various, expends time in.
2. ambulatory electrocardiogram detects: but the itemized record ecg information, and with hospital's specialized apparatus playback analysis.This equipment can not directly show ecg information, inapplicable first aid occasion.
3. electrocardiogram monitor: volume is bigger, is applicable to ICU, CCU ward.
4. intelligent electrocardiograph: based on computer, special-purpose software is done information processing to the ECG signal of gathering, and provides detailed examining report.This device is complicated, and is bulky, costs an arm and a leg.
5. the new electrograph equipment of common pocket: it is big that this special equipment has overcome above several equipment volume, and problems such as complicated operation can be carried.But because ecg equipment requires to be equipped with multiple device, as: pick off, power supply, CPU, display, printer etc. make equipment price high.
Though more than several electrocardio equipment have nothing in common with each other, all comprised basic devices such as pick off, power supply, display, all be special-purpose cardiograph, the use that can not match with other smart machines is not easy to spread to common family.
The purpose of this utility model provides a kind of existing resource of utilizing the smart machine palm PC, can reduce instrument cost significantly, and be easy to carry, and is easy to use, powerful palm PC type electrocardiograph.
Palm PC type electrocardiograph described in the utility model, it is by mainly comprising: palm PC that central processing unit, bus control unit, memorizer, input-output equipment are formed and electrocardiograph sensor electrode are formed; It is characterized in that: this electrocardiogram instrument also comprises a sampling output circuit, and the input of described sampling output circuit is connected with described electrocardiograph sensor electrode, and outfan is connected with the RS232 interface of described palm PC; Described sampling output circuit comprises an amplifying circuit, A/D converter, central processing unit and a level shifting circuit; Described input amplifier is the electrode signal input, and amplification circuit output end is connected with the A/D converter input, A/D converter outfan and central processing unit data terminal D
1-D
8Be connected; Central processing unit becomes above-mentioned signal into serial signal, sends from the Tx end, becomes the RS232 standard signal by coupled level translator through level conversion, is connected with the corresponding interface of described palm PC by the RS232 communication port.
The utlity model has following effect:
(1) satisfies the demand of people to electrocardiograph.Because increasing people has had smart machines such as palm PC, notebook computer, common computer, and these smart machines have the required main resource of electrocardiogram; As: CPU, display, power supply etc., and because these smart machines are powerful; So its resource is more powerful than the corresponding resource function of common cardiograph.
(2) utilize the existing resource of smart machine palm PC, simplify the device of cardiograph.Send sampled data to palm PC by interface, and show the electrocardio ripple in real time by software, sampling can be carried out the analysis of electrocardio ripple after finishing.This device can reduce the cost of cardiograph significantly, and portable band and use.
The drawing explanation:
Fig. 1 is a palm PC type electrocardiograph sampling output circuit theory diagram described in the utility model.
Fig. 2 is the simple flow chart of palm PC type electrocardiograph described in the utility model.
Fig. 3 is an embodiment circuit diagram of the sampling output circuit of palm PC type electrocardiograph described in the utility model.
Sampling output circuit of the present utility model can use the common batteries power supply, is connected to palm PC by signal output.Palm PC type electrocardiograph software section can adopt C Plus Plus to write, and makes it to have portability.Software will may operate on the mainstream operation systems such as Windons, WinCE, PALM, Linux.
This device operation principle: use common sensor electrode, obtaining signal by electrode at first amplifies through amplifier, deliver to cpu central processing unit through behind the A/D converter again, CPU becomes signal into serial signal, send from the Tx end, become the RS232 standard signal through level conversion again, palm PC is handled it after receiving signal by the RS232 interface, and is presented on the screen.
Among Fig. 3,8031AH starts working after the RESET signal provides, and A/D (AD7581) sample frequency (by the To of 8031AH) at first is set, and the baud rate of transmission.Pass through P
2Mouth sends startup command to A/D, A/D starts working, and after A/D finishes analog signal conversion, produces an interrupt signal and gives central processing unit, central processing unit reads in ram in slice with the digital signal of A/D conversion by the P0 mouth, the data that obtain is sent by serial ports again.Send data and level conversion among the CMOS is become Transistor-Transistor Logic level by MAX232ACPE (16).
Can calculate the rhythm of the heart, QRS burst width, RH (R wave amplitude), reach the P-R interval by application software.Also can data be analyzed, user's rhythm of the heart is classified by data and the existing digital model that receives; Normal cardiac rhythm, tachycardia, bradycardia, room are early rich, ventricular premature contraction, two connects rate, three and connects rate, leaks rich, paroxysmal premature contraction etc.The measurement data analysis result can also be stored on the Tlash dish of PDA,, also data can be sent in doctor's hands by mail as historical summary.If in the future PDA has wireless module, also can data in real time be sent by GPRS etc.Palm PC comprises: CPU, bus control unit, memorizer, input-output equipment, memorizer comprises: RAM etc., input-output equipment comprises: liquid crystal handwriting input display etc.
Claims (1)
1. palm PC type electrocardiograph, it is by mainly comprising: palm PC that central processing unit, bus control unit, memorizer, input-output equipment are formed and electrocardiograph sensor electrode are formed; It is characterized in that: this electrocardiogram instrument also comprises a sampling output circuit, the input of described sampling output circuit is connected with described electrocardiograph sensor electrode, outfan is connected with described electrocardiograph sensor electrode, and outfan is connected with the RS232 interface of described palm PC; Described sampling output circuit comprises an amplifying circuit, A/D converter, central processing unit and a level shifting circuit; Described input amplifier is the electrode signal input, and amplification circuit output end is connected with the A/D converter input, A/D converter outfan and central processing unit data terminal D
1-D
8Be connected; Central processing unit becomes above-mentioned signal into serial signal, sends from the Tx end, becomes the RS232 standard signal by coupled level translator through level conversion, is connected with the corresponding interface of described palm PC by the RS232 communication port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01227015 CN2478540Y (en) | 2001-06-12 | 2001-06-12 | Palm computer type electrocardiograph |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01227015 CN2478540Y (en) | 2001-06-12 | 2001-06-12 | Palm computer type electrocardiograph |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2478540Y true CN2478540Y (en) | 2002-02-27 |
Family
ID=33642539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01227015 Expired - Fee Related CN2478540Y (en) | 2001-06-12 | 2001-06-12 | Palm computer type electrocardiograph |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2478540Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104840193A (en) * | 2015-05-25 | 2015-08-19 | 李厚荣 | Movable network transmission bedside electrocardiogram detector |
-
2001
- 2001-06-12 CN CN 01227015 patent/CN2478540Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104840193A (en) * | 2015-05-25 | 2015-08-19 | 李厚荣 | Movable network transmission bedside electrocardiogram detector |
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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 |