Method of applying electrical signals to a patient and automatic wearable external defibrillator

• US 7,065,401 B2
• Filed: 05/07/2003
• Issued: 06/20/2006
• Est. Priority Date: 05/08/2002
• Status: Expired due to Fees

• Current Assignee: Zoll Medical Corporation (Asahi Kasei Corporation)
• Original Assignee: Cardiac Science Operating Company (Cardica Incorporated)
• Inventors: Worden, Michael
• Primary Examiner(s): Pezzuto, Robert E.
• Assistant Examiner(s): Gedeon, Brian T.
• Application Number:
  US10/431,348
• Publication Number:
  US 20030216787A1
• Time in Patent Office: 1,140 Days
• Field of Search: 607/2, 607/5, 607/7, 607/115, 607/129, 607/142, 607/148, 607/152
• US Class Current: 607/5
• CPC Class Codes: A61N 1/3918 characterised by shock pathway, e.g. by electrode configuration

Abstract

A system, apparatus, and method of delivering a defibrillation pulse to the heart of a patient generally includes positioning a pair of electrodes on the exterior surface of the patient'"'"'s body such that at least one of the electrodes is placed on a limb, e.g., arm or leg, of the patient in a position proximate to the patient'"'"'s torso. An electrical defibrillation pulse is then delivered through the electrodes, into the limb, enabling the electrical defibrillation pulse to travel from the limb to the heart of the patient.

Claims

1. A method of delivering an electrical defibrillation pulse to the heart of a patient comprising the steps of:

positioning a pair of electrodes on the exterior surface of the body of the patient, wherein at least one of said pair of electrodes is placed on one of the limbs of the patient in a position proximate the torso of the patient; and

delivering an electrical defibrillation pulse through said pair electrodes, wherein the electrical defibrillation pulse is directed into the limb upon which said electrode is placed enabling the electrical defibrillation pulse to travel from the limb to the heart of the patient.

2. The method of claim 1, wherein the travel of the electrical defibrillation pulse is through an arterial or veinous system of the patient.

3. The method of claim 1, wherein each of said pair of electrodes are placed on a seperate limb of said patient in a position proximate the torso of the patient.

4. The method of claim 1, wherein said at least one electrode is placed on an upper arm region of the patient.

5. The method of claim 1, wherein said at least one electrode is placed on an upper leg region of the patient.

6. The method of claim 1, further comprising delivering a plurality of defibrillation pulses through said pair of electrodes.

7. A system for delivering an external, electrical defibrillation pulse to the heart of a patient, comprising:

means for generating an electrical defibrillation pulse; and

means for delivering the generated electrical defibrillation pulse to the body of the patient, wherein said means for delivering delivers said generated electrical defibrillation pulse through at least one limb of the patient enabling the delivered electrical defibrillation pulse to travel from the limb to the heart of the patient.

8. The system of claim 7, wherein the delivered electrical defibrillation pulse travels through an arterial or veinous system of the patient.

9. The system of claim 7, wherein said means for delivering comprises a pair of electrodes and wherein each of said pair of electrodes is positioned on a limb of a patient in a position proximate the torso of the patient.

10. The system of claim 7, wherein said means for delivering comprises a pair of electrodes and wherein at least one of said pair of electrodes is positioned on an upper arm region of the patient.

11. The system of claim 7, wherein said means for delivering comprises a pair of electrodes and wherein at least one of said pair of electrodes is positioned on an upper leg region of the patient.

12. A system for delivering an external, electrical defibrillation pulse to the heart of a patient, comprising:

a power circuit, wherein said power circuit generates an electrical defibrillation pulse; and

a pair of electrodes, wherein said pair of electrodes is operably coupled to said power circuit, wherein at least one of said pair of electrodes is placed on one of the limbs of the patient in a position proximate the torso of the patient, and wherein the electrical defibrillation pulse is directed into the limb upon which one of the electrodes is placed enabling the electrical defibrillation pulse to travel from the limb to the heart of the patient.

13. The system of claim 12, wherein the travel of the delivered electrical defibrillation pulse is through an arterial or veinous system of the patient.

14. The system of claim 12, wherein both of said pair of electrodes are placed on a limb of the patient in a position proximate the torso of a patient.

15. The system of claim 12, wherein at least one of said pair of electrodes is placed on an upper arm region of the patient.

16. The system of claim 12, wherein at least one of said pair of electrodes is placed on an upper leg region of the patient.