WO2002100483A1 - Adaptive analysis method for an electrotherapy device and apparatus - Google Patents
Adaptive analysis method for an electrotherapy device and apparatus Download PDFInfo
- Publication number
- WO2002100483A1 WO2002100483A1 PCT/IB2002/002063 IB0202063W WO02100483A1 WO 2002100483 A1 WO2002100483 A1 WO 2002100483A1 IB 0202063 W IB0202063 W IB 0202063W WO 02100483 A1 WO02100483 A1 WO 02100483A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- patient
- physiological parameter
- decision
- electrotherapy device
- treatment
- Prior art date
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/18—Applying electric currents by contact electrodes
- A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
- A61N1/38—Applying electric currents by contact electrodes alternating or intermittent currents for producing shock effects
- A61N1/39—Heart defibrillators
- A61N1/3925—Monitoring; Protecting
Definitions
- This invention relates generally to an electrotherapy device. Specifically, this invention relates to a method and apparatus for analyzing a post-shock rhythm of a patient being treated by an electrotherapy device and using the results of the post-shock rhythm analysis to make a decision about patient treatment.
- Electrotherapy devices include defibrillators, cardioverters and training devices that simulate the operation of an electrotherapy device.
- Defibrillators include automatic or semi-automatic external defibrillators (AEDs).
- SCA Sudden cardiac arrest
- NF in which the heart's muscle fibers contract without coordination, thereby interrupting normal blood flow to the body.
- the only effective treatment for NF is electrical defibrillation, which applies an electric shock to the patient's heart.
- the electric shock clears the heart of the abnormal electrical activity (in a process called "defibrillation") by depolarizing a critical mass of myocardial cells to allow spontaneous organized myocardial depolarization to resume.
- the defibrillation shock must be delivered to the patient within minutes of the onset of NF.
- FIG. 1 represents a block diagram of an electrotherapy device showing a detachable electrode system
- Fig. 2 represents a block diagram that shows the major components of a semiautomatic external defibrillator shown in Fig. 1 ;
- the present invention can infer more than circumstances at any one moment would indicate.
- the present invention can account for this and alter treatment.
- the present invention functions differently from existing devices, which analyze a patient's condition at certain times, but which do not account for the results of prior analyses or prior treatments.
- a standardized treatment protocol may include delivering a shock to a patient every time that ventricular fibrillation (VF) is detected by an analysis of the patient's ECG.
- VF ventricular fibrillation
- an instrument that implements the present invention may behave differently.
- the present invention can change the therapy protocol during treatment. Additionally, the present invention can account for limited knowledge and/or memory on the part of operators of the device. In the case of lay people operating the device, the device can instruct the person in administering to the patient. Even if the operator of the device is skilled, the present invention can account for gaps and/or lapses in knowledge.
- the programming code can be updated to reflect the updated knowledge.
- Those of ordinary skill in the art would be able to generate computer-programming code that incorporates such medical knowledge and decision-making criteria without undue experimentation once aware of the disclosure contained herein.
- Fig. 1 is a block diagram showing a device 10.
- Device 10 is an electrotherapy device.
- the device 10 may include the ability to defibrillate, cardiovert, or pace a patient, or a combination of these features.
- Device 10 has a controller 12 that operates an energy delivery system 14 and performs other aspects of the operation of the device.
- Software instructions for operating the device are accessible from read only memory (ROM), such as incorporated ROM 16.
- ROM read only memory
- the controller accesses instructions for operation from ROM 16.
- controller means a microprocessor, controller, gate array, other control logic, or any combination of these elements.
- Gate array 106 provides a system monitor function by performing automatic self-tests of the defibrillator and its components.
- the gate array 106 displays the operational status of the defibrillator on a status display 128. Details of suitable self-tests may be found in U.S. Patent 5,879,374, to Powers, et al. for "External Defibrillator with Automated Self- Testing Prior to Use," the entire contents of the specification of which is incorporated herein by reference.
- the boot sequence begins with MPU 102 sending out a series of addresses to power supply 134.
- the defibrillator 100 typically (1) determines whether electrodes 137 are attached to electrode connector 136; (2) receives ECG information from a patient through such electrodes; (3) analyzes the ECG information to determine whether a therapeutic shock is advised; and (4) delivers a shock to the patient through the electrodes 137 if a shock is advised and if the shock button 126 is actuated by a user.
- a patient treatment decision is made 216 and treatment is delivered to the patient 218, if appropriate.
- the effect of the comparison may result in a change in the treatment decision. For example, where a patient has a thrombosis in a coronary artery and a region of the heart is ischemic as a result of the thrombus, the patient is predisposed to NF.
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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JP2003503299A JP2004528152A (en) | 2001-06-13 | 2002-06-05 | Method and apparatus for adaptive analysis of electrotherapy device |
EP02733143A EP1399218A1 (en) | 2001-06-13 | 2002-06-05 | Adaptive analysis method for an electrotherapy device and apparatus |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/879,057 | 2001-06-13 | ||
US09/879,057 US6671547B2 (en) | 2001-06-13 | 2001-06-13 | Adaptive analysis method for an electrotherapy device and apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2002100483A1 true WO2002100483A1 (en) | 2002-12-19 |
Family
ID=25373348
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IB2002/002063 WO2002100483A1 (en) | 2001-06-13 | 2002-06-05 | Adaptive analysis method for an electrotherapy device and apparatus |
Country Status (5)
Country | Link |
---|---|
US (1) | US6671547B2 (en) |
EP (1) | EP1399218A1 (en) |
JP (1) | JP2004528152A (en) |
CN (1) | CN1514741A (en) |
WO (1) | WO2002100483A1 (en) |
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- 2002-06-05 CN CNA028117220A patent/CN1514741A/en active Pending
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- 2002-06-05 JP JP2003503299A patent/JP2004528152A/en active Pending
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EP1533741A2 (en) * | 2003-09-24 | 2005-05-25 | Pacesetter, Inc. | Collection and analysis of procedural information |
EP1533741A3 (en) * | 2003-09-24 | 2008-12-10 | Pacesetter, Inc. | Collection and analysis of procedural information |
WO2014191888A1 (en) * | 2013-05-28 | 2014-12-04 | Koninklijke Philips N.V. | Automatic power management for external defibrillators |
Also Published As
Publication number | Publication date |
---|---|
EP1399218A1 (en) | 2004-03-24 |
US20020193848A1 (en) | 2002-12-19 |
US6671547B2 (en) | 2003-12-30 |
CN1514741A (en) | 2004-07-21 |
JP2004528152A (en) | 2004-09-16 |
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