WO1999045841A1 - Multi-functional equipment for diagnosing and monitoring of electrical/cardiac activity - Google Patents
Multi-functional equipment for diagnosing and monitoring of electrical/cardiac activity Download PDFInfo
- Publication number
- WO1999045841A1 WO1999045841A1 PCT/BR1998/000098 BR9800098W WO9945841A1 WO 1999045841 A1 WO1999045841 A1 WO 1999045841A1 BR 9800098 W BR9800098 W BR 9800098W WO 9945841 A1 WO9945841 A1 WO 9945841A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- button
- microcontroller
- monitoring
- status
- diagnosing
- Prior art date
Links
- 230000000694 effects Effects 0.000 title claims abstract description 20
- 238000012544 monitoring process Methods 0.000 title claims abstract description 15
- 230000000747 cardiac effect Effects 0.000 title claims abstract description 11
- 230000003321 amplification Effects 0.000 claims abstract 2
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract 2
- 238000004891 communication Methods 0.000 claims description 26
- 238000013500 data storage Methods 0.000 claims description 17
- 238000002565 electrocardiography Methods 0.000 description 26
- 230000005540 biological transmission Effects 0.000 description 18
- 238000009795 derivation Methods 0.000 description 15
- 238000010586 diagram Methods 0.000 description 13
- 238000012546 transfer Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 8
- 238000003745 diagnosis Methods 0.000 description 3
- 208000024891 symptom Diseases 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010921 in-depth analysis Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
- A61B5/30—Input circuits therefor
- A61B5/307—Input circuits therefor specially adapted for particular uses
- A61B5/308—Input circuits therefor specially adapted for particular uses for electrocardiography [ECG]
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/0002—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network
- A61B5/0004—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network characterised by the type of physiological signal transmitted
- A61B5/0006—ECG or EEG signals
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
- A61B5/30—Input circuits therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/0002—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network
- A61B5/0015—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network characterised by features of the telemetry system
- A61B5/0017—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network characterised by features of the telemetry system transmitting optical signals
Definitions
- the invention refers to an equipment specially developed to enable the diagnosing and monitoring of electrical/cardiac activity, considering four operation modes.
- the diagnosing and monitoring of electrical/cardiac activity include up to four operation modes, which are ECG, SAECG, event recorder and Holter.
- each one of the mentioned operation modes is carried or enabled by a specific type of equipment, since there is, so far, no single equipment comprising all the four mentioned modes efficiently.
- An object of the present invention is to provide a single equipment which efficiently performs all the four above-mentioned operation modes.
- Another feature of the present invention is related to an equipment, which can be used in procedures comprising the four operation modes, for diagnosing and monitoring of electrical/cardiac activity and represents a substantial improvement regarding to the state of art.
- Figure 1 is a general view of a blocked diagram of the equipment of the invention, showing its main components;
- Figure 2 is a status diagram which shows the ECG mode, wherein the straight lines mean “Status transition”, the dotted lines mean “Data transmission by transtelephonic communication” and the hatched lines mean “Data transmission by infrared communication” ;
- Figure 3 is a status diagram, which shows the SAECG mode, wherein the straight line means “Status transition” and the hatched line means "Data transmission by infrared communication";
- Figure 4 is a status diagram, which shows the event recorder mode, wherein the straight line means “Status transition”, the dotted line means "Data transmission by transtelephonic communication" 3
- Figure 5 is a status diagram, which shows the Holter mode, wherein the straight line means “Status transiton”, the dotted line means “Data transmission by transtelephonic communication” and the hatched line means “Data transmission by infrared communication” .
- the equipment of this invention enables that those data to be worked can be stored in Compact Flash/PCMCIA type cards, which make easier the information carrying and the data reading by a PC type computer.
- the present equipment is more pratical because of its smaller size, which can be classified as totally portable.
- the communication types with PC are the following: l.Data storage cards/PCMCIA - disconnected from the patient;
- Figure 1 shows a view of a general blocked diagram of the equipment, wherein can be observed a microcontroller 1, connected to a volatile memory as SRAM 2, which is activated by a button or switch 3.
- Such a microcontroller 1 also provides an activity display 4 and it is connected to Amp blocks 5, each of them connected to electronic keys 6, the latter attached to the representative block of the inlets 7 ( in number of 12) .
- the microcontroller 1 can operate with a Compact Flash type card 8 and includes the use of infrared communication, as that indicated in the block 8, as well as the transtelephonic communication through the loudspeaker
- the central component of the equipment is the microcontroller 1.
- This component comprises three A/D converters, one E/S serial port and two pulse width modulators, PWM, besides the support components to the CPU (RAM, ROM, temporizers and others) .
- the ECG signal is read from three inlets simultaneously of a total of twelve, already mentioned, i.e, there are four groups of three inlets. This gathering is made through the electronic 5
- the signals of the three inlets are amplified and injected into the three A/D converter inlets.
- the microcontroller 1 controls the information flow, depending on the chosen operation mode, monitoring the effected events by using the button 3.
- the uC records operation mode information in a specific area of the card for storing data 8, which justifies the necessity of being the mentioned card previously initialized in a PC computer.
- the microcontroller 1 reads the ECG information through its A/D converters and transfers them to the volatile memory 2 till a data block is filled in an appropriate size. Only after this, the information is transferred to the card for the data storage 8.
- the information can be sent through the serial outlet to the infrared transmitter/receiver 9.
- the other possibility is to send data through a pulse modulator to a loudspeaker 10.
- the activity display shown in the diagram of the figure 1 is connected to another uC pulse modulator and blinks whenever all the time the equipa ent is in use.
- two batteries (not shown) , which adjust the voltage to operation values through a keyed source.
- ECG - this operation mode has the purpose of obtaining twelve ECG derivations, divided into four groups of three. Each derivation group is read during three seconds and then a new group is activated and read. This process is repeated for each one of the four groups and, at the end, one of the groups will be recorded during the pre-scheduled time defined by the physician.
- SAECG - this operation mode aims at obtaining the electrocardiografic record of three derivations, with a sampling rate and a higher digital resolution, enabling the physician to observe features which are not shown in others operation modes. This mode is also known as "High resolution ECG".
- EVENTS RECORDER - the apparatus records, in a current manner, in volatile memory, by pre- established term 1, 2 or 3 , derivations from ECG.
- the apparatus button When the patient has a symptom, he activates the apparatus button.
- the equipment of the invention will record, to have the data stored in a card, a previous term and a farther term, which are programmed by the doctor. The purpose is to make easier na analysis of the relation symptom and ECG. 7
- HOLTER - In this mode the apparatus records 2 or 3 ECG derivations of the patient during a 24 hour period.
- the data are analyzed in an automatized manner by a PC by means of a special software.
- all the prior data registered on the card will be deleted and the instructions concerning the operation mode, for example sampling frequency and A/D converter resolution, recorded thereof.
- the card After the preparation phase, the card will be inserted in the equipment of the invention, which could be used in the patient when desired.
- Analogical/digital convertion from 200 to 1000 samples/second and 8 bit resolution.
- the apparatus begins to operate when the button 3 is pushed.
- the infrared communication will be automatically tried. If no reply is obtained from the infrared communication, it stops during this process.
- the data from one of those four groups can be read during a pre-scheduled gap.
- the user should press the button 3 again.
- the figure 2 shows a blocked status diagram of the ECG mode, wherein the block A represents the equipment stand-by mode status.
- the circuit activity is minimum, which reduces the consumption to small values.
- the following actions can be done:
- the block B of figure 2 represents the status in which the apparatus transfers 9
- the block C of figure 2 represents the status in which the apparatus records the patient' s electrocardiographic signals in the card, for data storage, and the only action that can be done is to end this status and to stop the recording, returning to the status A, by pushing again the button or when the recording time reached the pre-scheduled limit.
- the block D of figure 2 represents the status in which the apparatus records the patient's electrocardiographic signals in the card, for data storage, and transfer them, simultaneously, to the PC through infrared communication and the only action that can be done is to stop the recording/communication, returning to the status A, by pushing again the button or when the recording time reached the pre-scheduled limit.
- Figure 3 shows a SAECG mode blocked diagram, which will be set forth below: SAECG mode Characteristics : 10
- Analogical/digital convertion 1000 samples/second and 10 bit resolution. Number of derivations: 3 Description: The apparatus begins to operate when the button 3 is pushed.
- the main derivation (x,y,z) is recorded until the button will be pushed again.
- the infrared communication is activated at any moment during the recording and it is controlled by a specific communication protocol, wherein the PC will only monitor the signals registered during the recording.
- the block A of figure 3 represents the stand-by equipment status.
- the circuit activity is minimum, which reduce the consumption to really small values.
- the only action to be done is to begin the operation, going to status B when the button 3 is pushed.
- the block B of figure 3 represents the status in which the equipment records the electrocardiographic signal in the card, for data storage.
- the following actions can be done simultaneously with the recording: - to transfer the ECG directly to the computer, in the event of beginning a infrared communication from PC. Said transmission will be stopped immediately if more activity is developed from PC. 1 1
- FIG. 4 shows a blocked diagram of the event recorder mode, which will be further described.
- EVENTS RECORDER mode Characteristics Analogical/digital convertion: 100 or 200 samples/second and 8 bit resolution.
- the apparatus reads the derivation data and records in SRAM volatile memory, by using a "circular line" maintaining the electrocardiographic record of the last gap.
- This gap has a pre-scheduled term in the project (typically from 30 to 120 seconds) . If the button 3 is pushed for more than five seconds and the apparatus is not recording data on the card for storage 8, all the data already recorded on the card 8 will be transferred, by the loudspeaker, through transtelephonic communication, to a remote receiver connected to a PC.
- the electrocardiographic signals will be transferred from the patient to the 12
- loudspeaker and, through transtelephonic communication, to a remote receiver connected to a PC.
- the patient' s electrocardiographic signals are recorded directly on the card, for data storage 8, during a pre-scheduled gap by the physician or until the user pushes again the button 3.
- the button 3 If the user pushes the button for more than 3 seconds, the data transferring, through the loudspeaker, simultanesouly to ECG recording on the card 8, will be carried out. In this case, if the button 3 is pushed again, the transtelephonic transmission will be stopped.
- the equipment of the invention sends an ECG signal, simultaneously, through infrared way.
- the blocked diagram of figure 4 shows the Event Recorder mode according to the invention. It will be set forth below.
- the block A of mentioned figure 4 represents the mode, in which the equipment records cyclically the electrocardiographic signal in a volatile memory, keeping, therefore, a record of the last seconds of the cardiac activity.
- the block B of figure 4 represents the mode, in which the apparatus records the electrocardiographic signal on the card, for data storage 8. The following actions can be done simultaneously to the recording:
- the block C of figure 4 represents the status in which the equipment of the invention transfers all data already recorded on the card, for data storage 8, to the loudspeaker and, 14
- FIG. 5 shows a status blocked diagram of the Holter mode, which will be now described.
- HOLTER mode Characteristics Analogical/digital convertion: from 200 to 1000 samples/second and 8 bit resolution.
- the apparatus begins its operation when the button is pushed.
- the ECG data are recorded continuously on the card, for data storage 8, and stops only when no more space is available on the card when the batteries, which feed this equipment, are removed.
- buttons During recording, if the button is quickly pushed, a marking will be recorded. This marking enables the physician to find the pulsation period for a more in-depth analysis. If the button is pushed for more than 3 seconds, it will begin the simultaneous ECG transmission, through the loud-speaker, to be transtelephonic transmitted to a remote receiver 15
- a PC may require an infrared transmission.
- the equipment sends the ECG signal simultaneously through infrared way.
- the block A represents the standby mode of the equipment.
- the circuit activity is minimum, which reduces the consumption to really small values and the only action to be done is to begin the operation going to the B status when the button is pushed.
- the block B represents the equipment status, in which it records the electrocardiographic signal on the card, for the data storage 8. The following actions could be done simultaneously to the recording:
- This equipment is the only one that joins the four electrocardiographic diagnosis methods in a sole system.
- the proposed equipment besides providing an appropriated datamidia storage, it enables a continuous monitoring through two different communication modes.
- Another feature of the equipment is its flexibility, since it is the only one known that enables communication with the four computer classic models, i.e. Desktop, Laptop, Notebook and Palmtop, in order to visualize, store and process data.
- the modular structure is also another aspect of the present invention, so that, from a basic embodiment, the functionality and the system resources can be expanded, including new methods of diagnosing through analysis and data processing softwares and specific firmwares, without structural changes in the equipment, when a necessity or a new diagnosis prodecure developments comes on. 17
- the equipment of the invention shows to be different from the state of art, since it is the only one ECG recorder with the following all together features: - totally portable (pocket) ;
- this equipment embodies still other novelties : - the possibility of transtelephonic monitoring
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU16548/99A AU1654899A (en) | 1998-03-09 | 1998-12-01 | Multi-functional equipment for diagnosing and monitoring of electrical/cardiac activity |
EP98960942A EP1075212A1 (en) | 1998-03-09 | 1998-12-01 | Multi-functional equipment for diagnosing and monitoring of electrical/cardiac activity |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR9801328-9A BR9801328A (en) | 1998-03-09 | 1998-03-09 | Multi-functional equipment for diagnosis and monitoring of electrical / cardiac activity |
BRPI9801328-9 | 1998-03-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1999045841A1 true WO1999045841A1 (en) | 1999-09-16 |
Family
ID=4069543
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/BR1998/000098 WO1999045841A1 (en) | 1998-03-09 | 1998-12-01 | Multi-functional equipment for diagnosing and monitoring of electrical/cardiac activity |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1075212A1 (en) |
AU (1) | AU1654899A (en) |
BR (1) | BR9801328A (en) |
WO (1) | WO1999045841A1 (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10008411A1 (en) * | 2000-02-23 | 2001-08-30 | Hoermann Medizinelektronik Gmb | Method for recording and transmitting a multi-channel ECG and arrangement as a portable recorder for carrying out the method |
WO2002101681A1 (en) * | 2001-06-13 | 2002-12-19 | Grupo It Deusto, S.L. | Device and system for detecting and monitoring cardiovascular diseases in a patient using mobile technology |
ES2178916A1 (en) * | 2000-03-28 | 2003-01-01 | Santana Cabeza Juan Jesus | Professional electrocardiograph for remote and non-remote diagnosis of cardiac alterations |
US7328062B2 (en) | 2000-07-12 | 2008-02-05 | Ge Healthcare Finland Oy | Monitoring of patient's electrical characteristics using a single piece of equipment |
US7351415B2 (en) | 2000-03-07 | 2008-04-01 | Merck & Co., Inc. | Adenovirus formulations |
US7456009B2 (en) | 2000-03-07 | 2008-11-25 | Merck & Co., Inc. | Adenovirus formulations |
US8916184B2 (en) | 2003-11-07 | 2014-12-23 | University Of Connecticut | Artificial tissue systems and uses thereof |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4624263A (en) * | 1983-08-25 | 1986-11-25 | Advanced Medical Electronics Developments Limited Partnership | Portable electrocardiograph with digitally-printing waveform display |
US5333615A (en) * | 1992-06-22 | 1994-08-02 | William Craelius | Apparatus for digitally recording and analyzing electrocardial and other bioelectric signals |
US5522396A (en) * | 1992-05-12 | 1996-06-04 | Cardiac Telecom Corporation | Method and system for monitoring the heart of a patient |
-
1998
- 1998-03-09 BR BR9801328-9A patent/BR9801328A/en unknown
- 1998-12-01 WO PCT/BR1998/000098 patent/WO1999045841A1/en not_active Application Discontinuation
- 1998-12-01 AU AU16548/99A patent/AU1654899A/en not_active Abandoned
- 1998-12-01 EP EP98960942A patent/EP1075212A1/en not_active Withdrawn
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4624263A (en) * | 1983-08-25 | 1986-11-25 | Advanced Medical Electronics Developments Limited Partnership | Portable electrocardiograph with digitally-printing waveform display |
US5522396A (en) * | 1992-05-12 | 1996-06-04 | Cardiac Telecom Corporation | Method and system for monitoring the heart of a patient |
US5333615A (en) * | 1992-06-22 | 1994-08-02 | William Craelius | Apparatus for digitally recording and analyzing electrocardial and other bioelectric signals |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10008411A1 (en) * | 2000-02-23 | 2001-08-30 | Hoermann Medizinelektronik Gmb | Method for recording and transmitting a multi-channel ECG and arrangement as a portable recorder for carrying out the method |
US6535758B2 (en) | 2000-02-23 | 2003-03-18 | Von Berg Medizingerate Gmbh | Method for recording and transmitting a multi-channel ECG and an arrangement as a portable recorder for carrying out this procedure |
US7351415B2 (en) | 2000-03-07 | 2008-04-01 | Merck & Co., Inc. | Adenovirus formulations |
US7456009B2 (en) | 2000-03-07 | 2008-11-25 | Merck & Co., Inc. | Adenovirus formulations |
ES2178916A1 (en) * | 2000-03-28 | 2003-01-01 | Santana Cabeza Juan Jesus | Professional electrocardiograph for remote and non-remote diagnosis of cardiac alterations |
US7328062B2 (en) | 2000-07-12 | 2008-02-05 | Ge Healthcare Finland Oy | Monitoring of patient's electrical characteristics using a single piece of equipment |
WO2002101681A1 (en) * | 2001-06-13 | 2002-12-19 | Grupo It Deusto, S.L. | Device and system for detecting and monitoring cardiovascular diseases in a patient using mobile technology |
ES2185488A1 (en) * | 2001-06-13 | 2003-04-16 | Software Factory Deusto S A | Device and system for detecting and monitoring cardiovascular diseases in a patient using mobile technology |
US8916184B2 (en) | 2003-11-07 | 2014-12-23 | University Of Connecticut | Artificial tissue systems and uses thereof |
Also Published As
Publication number | Publication date |
---|---|
BR9801328A (en) | 1999-10-05 |
EP1075212A1 (en) | 2001-02-14 |
AU1654899A (en) | 1999-09-27 |
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