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Method and apparatus for sensing and analyzing electrical activity of the human heart using a four electrode arrangement

  • US 6,052,615 A
  • Filed: 08/17/1998
  • Issued: 04/18/2000
  • Est. Priority Date: 08/17/1998
  • Status: Expired due to Fees
First Claim
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1. Instrumentation for measuring arid processing voltages produced by a human heart as sensed between selected points on the surface of a subject'"'"'s body, said instrumentation comprising:

  • (a) a first electrode attachable to the anterior midline of the subject'"'"'s body at a level selected from the group consisting of;

    (i) the fourth rib interspace;

    (ii) the fifth rib interspace;

    (b) second and third electrodes attachable to the subject'"'"'s body on opposed sides of the anterior midline below the level selected from the group consisting of the fourth rib interspace and the fifth rib interspace, but high enough so they are positioned over the subject'"'"'s ribs or intercostal spaces;

    (c) a fourth electrode attachable over the subject'"'"'s manubrium sterni; and

    ,(d) signal processing means operatively connected to said electrodes for receiving first, second and third electrical signals present between said first, second and third electrodes as produced by said heart at said points of attachment, and for combining and scaling said signals to produce xyz vectorcardiographic signals in response thereto.

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