CN2788740Y

CN2788740Y - Insert type electrocardiological analyser

Info

Publication number: CN2788740Y
Application number: CN 200520028651
Authority: CN
Inventors: 赵继印; 闫维和; 李建坡
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-05-18
Filing date: 2005-05-18
Publication date: 2006-06-21
Anticipated expiration: 2015-05-18

Abstract

The utility model relates to an inserted type electrocardiological analyser which belongs to the technical field of medical apparatuses. The utility model is characterized in that a lead output end is orderly connected with a computer via an amplifier, a transfer switch, an A/D transfer chip and a USB interface, wherein a photoisolator is connected with the transfer switch and the A/D transfer chip, and a microprocessor is connected with the USB interface and the photoisolator. The utility model has the advantages that an electrocardiograph is convenient to print and store, the installation is simple and convenient, and the utility model is not affected by external factors. The analyser can store and display electrocardiograms on a personal computer for printing someday in the future at any time, a 12-path color electrocardiogram can be printed, therefore the utility model provides a convenient foot platform for medical personnel so that the possibility of medical negligence is reduced. The system adopts a USB interface technology and supports the functions of plug and play and hot plug, and simultaneously, the utility model can be connected with a notebook computer to form a portable electrocardiogram detection analyzer.

Description

The embedded electrocardiograph analyser

Technical field

This utility model belongs to Medical Instruments and technical field, relates to the improvement of a kind of electrocardio detection, analytical tool.

Background technology

Electrocardiograph has in the market solved the problem of the collection and the printing of electrocardiosignal, certain medical treatment and economic benefits are arranged, but traditional electrocardiograph also more and more is difficult to satisfy the development need of modern medicine: the number of leading is few, often needs the twelve-lead electrocardiogram synchronous recording for the diagnosis of complicated heart disease; All considering lessly aspect the filing management of electrocardiogram (ECG) data, is the structure of forming with magnetic tape recorder mostly, utilizes the tape playback mechanism to carry out playback then; Aspect demonstration and printing model, owing to adopt the paper tape formula with adopting with the electrocardiographic recording mode of beating, caused the collection of electrocardiosignal disposablely to print, printing can only the single file monochrome can not be stored demonstration, and the factor affecting that is subjected to the external worlds such as printer is bigger, patient's diagnosis can only be a foundation with the electrocardiogram paper tape, just is difficult to find original diagnosis basis if any losing; On signal processing method, there is not the digital processing part, to the signal processing imperfection, exist than mistake; The almost not auxiliary analysis expert system of tradition electrocardiograph analyzes by experienced medical expert fully, does not have auxiliary analytical tool, has increased medical personnel's work difficulty.And acquisition system all adopts card insert type to link to each other with main frame with the communication interface of computer, exists plug-in card and pulls out between the inconvenience of card and card and mainboard and contact factor affecting such as bad.

Summary of the invention

The purpose of this utility model is:

Existing electrocardiograph is printed and storage is inconvenient in order to overcome, it is loaded down with trivial details to install, be subjected to extraneous factor to influence shortcomings such as bigger, and a kind of embedded electrocardiograph analyser is provided.

The technical solution of the utility model is:

The outfan that leads links to each other with computer successively through amplifier, permutator, A/D conversion chip, USB interface, and photoisolator links to each other with permutator, A/D conversion chip, and microprocessor is connected with photoisolator with USB interface.

In circuit, be divided into analog signal processing part and digital processing part.

In the analog signal processing part, interface DB15 is connected with leading, wherein the pin 1 of interface DB15 and pin 12 connect 5 feet and 3 feet of single-chip microcomputer U5, interface DB15 pin 10 and pin 11 connect 3 feet and 5 feet of amplifier U4, interface DB15 pin 2 and pin 3 connect 3 feet and 5 feet of amplifier U6, interface DB15 pin 4 and pin 5 connect 3 feet and 5 feet of amplifier U7, and interface DB15 pin 6 and pin 9 connect 2 feet and 5 feet of amplifier U8.The pin 3 of amplifier U8 connects power supply and ground through R20 and R21 respectively.The pin 6 of amplifier U4, U5, U6, U7 and U8 links to each other with pin 7, and pin 2 links to each other with pin 1.The

1 and 7 of amplifier U4 connects 2 pins of U22 and U23, the

1 and 7 of single-chip microcomputer U5 connects 2 pins of U25 and U26, the

1 and 7 of amplifier U6 connects 2 pins of amplifier U28 and amplifier U29, the

1 and 7 of amplifier U7 connects 2 pins of amplifier U31 and U32, the pin 1 of amplifier U8 connects 5 pins of amplifier U22, U23, U25, U26, U28, U29, U31, U32, and the pin 7 of amplifier U8 connects 3 pins of amplifier U22, U23, U25, U26, U28, U29, U31, U32.6 feet of amplifier U22 meet C47 and C104 through R104,5 pins of another termination amplifier U24 of C47 and the end of R28, the other end of R28 links to each other with the other end of C104 and is connected to 6 pins of amplifier U24 through R29, be connected to 2 feet and 5 feet of amplifier U20 simultaneously, the 6 pin connected modes of amplifier U23, U25, U26, U28, U29, U31, U32 are with the connected mode of amplifier U22.1 foot of permutator U21 links to each other with 7 feet of amplifier U30,2 feet of permutator U21 link to each other with 7 feet of amplifier U33,4 feet of permutator U21 link to each other with 1 foot of amplifier U33,5 feet of permutator U21 and 1 foot of U30 link to each other, 12 feet of permutator U21 and 1 foot of U27 link to each other, 13 feet of permutator U21 and 7 feet of U24 link to each other, and 14 feet of permutator U21 link to each other with 1 foot of amplifier U24, and 15 feet of permutator U21 link to each other with 7 feet of amplifier U27.9,10,11 pins of permutator U21 link to each other with the

4,3,2 of single-chip microcomputer U5 respectively every chip U12, U11, U13 through light.10,11 pins of permutator U19 link to each other with the

3,2 of single-chip microcomputer U1 respectively through interface chip U10, U14.

The pin 8 of Digital Signal Processing part single-chip microcomputer U1, pin 13 respectively with amplifier U2 13, pin 8 links to each other successively.2,5 pins that 16,17 pins of single-chip microcomputer U1 meet dual-port U3 respectively link to each other with 16,15 pins of light every chip U10, and 16,17 pins of amplifier U2 connect 46,43 pins of dual-port U3.39～32 pins of single-chip microcomputer U1 link to each other every 1,2,3,4,6,7,8,9 of chip U10 with light respectively, and light is every 26 feet of chip U10,3 feet, 2 feet that 25 feet connect USB mouth J13.

The beneficial effects of the utility model are:

Electrocardiograph printing and convenient storage, simple installation, not influenced by extraneous factor, this instrument can store electrocardiogram and be presented on the PC for printing at any time in the future, and printable 12 tunnel colored electrocardiogram, for the medical worker provides open-and-shut work platforms.Work station provides " expert diagnostic system " to go out the left and right ventricles hypertrophy by computer analysis, the front and rear wall infraction, and the concrete state of an illness such as left and right sides bundle branch retardance, directly the nearly step diagnosis for the medical worker provides foundation, has reduced the probability of malpractice.System adopts the USB interface technology, supports plug and play and hot plug function, also can link to each other with notebook computer simultaneously to form portable cardiac check and analysis instrument.

Description of drawings

Fig. 1 is this utility model circuit block diagram;

Fig. 2 is this utility model analog signal processing partial circuit figure;

Fig. 3 is this utility model Digital Signal Processing partial circuit figure;

Wherein: R is that resistance, C are that electric capacity, Y are crystal oscillator pipe, J1, and---J5 is that plug-in unit, J6 are analog power, J13, and---J15 is that connector, U1, U5 are that single-chip microcomputer, U3 are that dual-port, U7 are that serial port chip, U10 are interface chip, U2, U4---U8, U20---U33 is amplifier, U9---U16 is that light is that transducer, U19, U21 are the multicircuit switch chips every chip, U17.

The specific embodiment

Below in conjunction with accompanying drawing this utility model is described further:

Traditional electrocardiograph adopts three to lead or nine electrocardiogram acquisition that leads and analytical systems, this utility model adopts the signal acquiring system of 12 lead, can obtain more ecg information, by corresponding circuit, mapping algorithm and software processes can obtain than traditional electrocardiograph ecg wave form more accurately; The second, this utility model can store electrocardiogram and be presented at and supply on the PC to print at any time in the future, and printable 12 tunnel colored electrocardiogram; The 3rd, traditional electrocardiograph is all being considered lessly aspect the filing management of electrocardiogram (ECG) data, be the structure of forming with magnetic tape recorder mostly, utilizes the tape playback mechanism to carry out playback then; The electrocardiograph of this utility model design has been set up the case history archive management system, patient's electrocardiogram (ECG) data, and individual basic condition completely is recorded in the archives, is convenient to the check behind the patient day; The 4th, traditional electrocardiograph adopts board plug type more, contact badly with mainboard owing to exist, and reaches the problem of short circuit burning plate, has influenced the stability and the reliability of system.Native system adopts embedded system, has realized two bodyizatioies of flush bonding module and electro cardio signal workstation, has guaranteed the reliability and stability of system; The 5th, all there are plug-in card plug trouble in the acquisition system of tradition electrocardiograph and the communication interface of computer, deficiencies such as poor stability, native system employing USB interface realization acquisition system is connected with PC, support plug and play and hot plug function, also can link to each other with notebook computer simultaneously, make system more convenient to carry to constitute portable electrocardio check and analysis instrument.

Claims

1, a kind of embedded electrocardiograph analyser, it is characterized in that: the outfan that leads links to each other with computer successively through amplifier, permutator, A/D conversion chip, USB interface, photoisolator links to each other with permutator, A/D conversion chip, and microprocessor is connected with photoisolator with USB interface.

2, a kind of embedded electrocardiograph analyser according to claim 1, it is characterized in that: in the analog signal processing part, interface DB15 is connected with leading, wherein the pin 1 of interface DB15 and pin 12 connect 5 feet and 3 feet of single-chip microcomputer U5, interface DB15 pin 10 and pin 11 connect 3 feet and 5 feet of amplifier U4, interface DB15 pin 2 and pin 3 connect 3 feet and 5 feet of amplifier U6, interface DB15 pin 4 and pin 5 connect 3 feet and 5 feet of amplifier U7, and interface DB15 pin 6 and pin 9 connect 2 feet and 5 feet of amplifier U8; The pin 3 of amplifier U8 connects power supply and ground through R20 and R21 respectively; The pin 6 of amplifier U4, U5, U6, U7 and U8 links to each other with pin 7, and pin 2 links to each other with pin 1.The pin 1 and 7 of amplifier U4 connects 2 pins of U22 and U23, the pin 1 and 7 of single-chip microcomputer U5 connects 2 pins of U25 and U26, the pin 1 and 7 of amplifier U6 connects 2 pins of amplifier U28 and amplifier U29, the pin 1 and 7 of amplifier U7 connects 2 pins of amplifier U31 and U32, the pin 1 of amplifier U8 connects 5 pins of amplifier U22, U23, U25, U26, U28, U29, U31, U32, and the pin 7 of amplifier U8 connects 3 pins of amplifier U22, U23, U25, U26, U28, U29, U31, U32; 6 feet of amplifier U22 meet C47 and C104 through R104,5 pins of another termination amplifier U24 of C47 and the end of R28, the other end of R28 links to each other with the other end of C104 and is connected to 6 pins of amplifier U24 through R29, be connected to 2 feet and 5 feet of amplifier U20 simultaneously, the 6 pin connected modes of amplifier U23, U25, U26, U28, U29, U31, U32 are with the connected mode of amplifier U22; 1 foot of permutator U21 links to each other with 7 feet of amplifier U30,2 feet of permutator U21 link to each other with 7 feet of amplifier U33,4 feet of permutator U21 link to each other with 1 foot of amplifier U33,5 feet of permutator U21 and 1 foot of U30 link to each other, 12 feet of permutator U21 and 1 foot of U27 link to each other, 13 feet of permutator U21 and 7 feet of U24 link to each other, 14 feet of permutator U21 link to each other with 1 foot of amplifier U24,15 feet of permutator U21 link to each other 9 of permutator U21 with 7 feet of amplifier U27,10,11 pins through light every chip U12, U11, U13 respectively with the pin 4 of single-chip microcomputer U5,3,2 link to each other; 10,11 pins of permutator U19 link to each other with the pin 3,2 of single-chip microcomputer U1 respectively through interface chip U10, U14;

The pin 8 of Digital Signal Processing part single-chip microcomputer U1, pin 13 respectively with amplifier U2 13, pin 8 links to each other successively, 2,5 pins that 16,17 pins of single-chip microcomputer U1 meet dual-port U3 respectively link to each other with 16,15 pins of light every chip U10,16,17 pins of amplifier U2 connect 46,43 pins of dual-port U3,39～32 pins of single-chip microcomputer U1 link to each other every 1,2,3,4,6,7,8,9 of chip U10 with light respectively, and light is every 26 feet of chip U10,3 feet, 2 feet that 25 feet connect USB mouth J13.