Device for mobile electrocardiogram recording

• US 8,903,477 B2
• Filed: 07/29/2007
• Issued: 12/02/2014
• Est. Priority Date: 07/29/2006
• Status: Expired due to Fees

• Current Assignee: Cardicell Ltd.
• Original Assignee: Cardicell Ltd.
• Inventors: Berkner, Lior
• Primary Examiner(s): Dvorak, Linda
• Assistant Examiner(s): ANTISKAY, BRIAN MICHAEL
• Application Number:
  US12/375,561
• Publication Number:
  US 20100069735A1
• Time in Patent Office: 2,683 Days
• Field of Search: 600/382, 600508-510, 600386-393
• US Class Current: 600/509
• CPC Class Codes: A61B 5/061 Determining position of a probe within the body employing means separate from the probe, e.g. sensing internal probe position employing impedance electrodes on the surface of the body A61B1/00158 takes precedence
• CPC Class Codes: A61B 5/282 Holders for multiple electrodes for introduction into the body A61B5/287
• CPC Class Codes: A61B 5/303 Patient cord assembly, e.g. cable harness
• CPC Class Codes: A61B 5/327 Generation of artificial ECG signals based on measured signals, e.g. to compensate for missing leads
• CPC Class Codes: A61B 5/6831 Straps, bands or harnesses
• CPC Class Codes: A61B 5/684 Indicating the position of the sensor on the body

Abstract

A device, system and method for obtaining a 12 lead electrocardiogram (ECG) from measurements obtained with 3 electrodes in some embodiments (it should be noted that some separate embodiments of the present invention relate to such measurements with 4 electrodes). Optionally and preferably, the device, system and method of the present invention may be easily and accurately operated by a layperson.

Claims

1. A personal ECG device for home use for deriving results of 12 lead ECG measurements by placing three electrodes on a body of a subject, comprising:

a housing having at least two faces;

one electrode connected to a first face of said housing adapted to record sequential measurements at 7 different locations on the body of the subject including measurements at the lower limb or lower torso of the body and at v1-v6 locations;

two electrodes connected to at least one other face of said housing adapted to record measurements of two hands of the subject;

a processor located within said housing configured for receiving and processing signals from the three electrodes; and

a memory located within said housing for storing data indicative of signals measured by said three electrodes, wherein the sequential recordings at the different locations from the beginning to the end of a recording are stored in said memory,

wherein said device is configured to allow the subject to hold said device in a manner that allows him/her to move said device over his/her body for sequentially measuring electrode signals at the 7 different locations by the first electrode connected to the first face of the housing while simultaneously allowing each hand thereof to contact a different electrode of said two electrodes that is connected to at least one other face of the housing, and

wherein the signals sequentially recorded by the three electrodes allow said processor to derive 12 lead ECG from signal data obtained by the three electrodes during the respective recording relating to the 7 different locations and the two hands of the subject, by combining the stored recording of the measurements at the lower limb or lower torso with the measurements at the v1-v6 locations and recorded measurements of two hands of the subject acquired by the three electrodes.

3. The device of claim 1, wherein said processor is separate from said device.

4. The device of claim 1, wherein said processor is comprised in a computer selected from the group consisting of a cellular telephone, a laptop computer, a smartphone, a PDA and a pager.

5. The device of claim 1, further comprising a remote location for analyzing said measurements.

6. The device of claim 1, further comprising a signal amplification component.

7. The device of claim 1, further comprising a noise reduction component.

8. The device of any of claim 1, further comprising a data transmission component.

9. The device of claim 1, further comprising a navigation system for locating said plurality of different recording locations.

10. The device of claim 9, wherein said navigation system includes one or more of a visual display, an audio display or vibrating component for alerting a user as to at least one recording location.

11. The device of claim 1, further comprising a defibrillator.

12. The device of claim 1, further comprising at least one accessory selected from the group consisting of a Pulse Oximeter, stethoscope, ultrasound transducer, echocardiogram transducer, thermometer, capnograph, blood pressure cuff, fetal heart rate transducer, camera, defibrillator electrodes, wire electrodes, a carrier for a medicament and a combination thereof.

2. A personal device performing conventional 12 lead ECG measurements by using four electrodes, said device comprising:

a. a first unit having at least two faces;

b. a second unit having at least two faces associated to the first unit by wire;

c. a first electrode connected to a first face of the first unit adapted to record measurements at 6 different locations on the body of the subject;

d. a second electrode connected to a first face of the second unit adapted to record measurements of at lower limb of the body or lower torso;

e. a third electrode connected to a second face of the first unit adapted to record measurements of a first hand of the subject;

f. a fourth electrode connected to a second face of the second unit adapted to record measurements of a second hand of the subject;

wherein performing 12 lead ECG is done by using the first electrode that sequentially monitors and records measurements at v1-v6 locations, while the second electrode simultaneously record measurements at the lower limb or lower torso and the third and fourth electrode simultaneously record measurements at the two hands of the subject while the first electrode is recording the measurements at the V1-V6 locations such that the 12 lead EGG measurement is achieved by monitoring a total of only nine different locations using 4 electrodes.

13. A method of obtaining results of 12 lead ECG data using a personal ECG device for home use by placing three electrodes on a body of a subject, comprising:

measuring electrode signals simultaneously at a LA location on a left arm using a first electrode on a first side of the personal ECG device and a LL location on a left side torso or leg using a second electrode on a second side of the personal ECG device,

measuring electrode signals simultaneously

1) at a RA location on a right arm using a third electrode on any side other than the second side of the personal ECG device, and

2) at a plurality of locations V1-V6 on the torso, by moving the device sequentially so that the second electrode connected to the second face of the device moves between the locations V1-V6 and sequentially measuring electrode signals at the V1-V6 locations,

storing the measured electrode signals in a non-transitory computer readable memory,

deriving, using a processor in the personal ECG device, from the stored electrode signals sequentially measured by the three electrodes, 12 lead ECG data, by combining the stored recording of the measurements at the lower limb or lower torso with the measurements at the v1-v6 locations and recorded measurements of two hands of the subject acquired by the three electrodes, and

sending the 12 lead ECG data to a central location for analysis.

14. A method of obtaining results of 12 lead ECG data using a personal ECG device for home use by placing four electrodes on a body of a subject, the device comprising a first unit having at least two faces, and a second unit having at least two faces associated to the first unit by wire, the method comprising:

using a first electrode connected to a first face of the first unit that sequentially monitors and records measurements at v1-v6 locations, while simultaneously recording measurements using the second electrode at the lower limb or lower torso and simultaneously recording measurements using the third and fourth electrode at the two hands of the subject while the first electrode is recording the measurements at the V1-V6 locations such that the 12 lead EGG measurement is achieved by monitoring a total of only nine different locations using 4 electrodes.