External defibrillator

• US 8,024,037 B2
• Filed: 07/27/2007
• Issued: 09/20/2011
• Est. Priority Date: 08/01/2006
• Status: Active Grant

• Current Assignee: Element Science, Inc.
• Original Assignee: Uday N. Kumar
• Inventors: Kumar, Uday N.
• Primary Examiner(s): Bertram; Eric D.
• Application Number:
  US11/829,753
• Publication Number:
  US 20080033495A1
• Time in Patent Office: 1,516 Days
• Field of Search: 600/507, 607 4- 8
• US Class Current: 607/5
• CPC Class Codes: A61N 1/39044 in combination with cardiopulmonary resuscitation [CPR] therapy
• CPC Class Codes: A61N 1/3968 Constructional arrangements, e.g. casings A61N1/375 takes precedence

Abstract

An external defibrillator having a battery; a capacitor electrically communicable with the battery; at least two electrodes electrically communicable with the capacitor and with the skin of a patient; a controller configured to charge the capacitor from the battery and to discharge the capacitor through the electrodes; and a support supporting the battery, capacitor, electrodes and controller in a deployment configuration, the defibrillator having a maximum weight per unit area in the deployment configuration of 0.1 lb/in² and/or a maximum thickness of 1 inch. The support may be a waterproof housing.

Claims

1. A unitary external defibrillator comprising:

a battery;

a capacitor electrically communicable with the battery;

at least two electrodes electrically communicable with the capacitor and with the skin of a patient;

a controller configured to charge the capacitor from the battery and to discharge the capacitor through the electrodes;

a housing supporting the battery, capacitor, electrodes and controller in a deployment configuration and at least partially surrounding all defibrillator components to create a unitary defibrillator with a maximum weight per unit area in the deployment configuration of 0.1 lb/in² and a maximum thickness of 1 inch; and

adhesive adapted to attach the unitary defibrillator to human skin in the deployment configuration.

2. The unitary external defibrillator of claim 1 wherein the capacitor has a capacitance of at least 25 microFarads.

3. The unitary external defibrillator of claim 1 wherein the electrodes are spaced at least 3 inches apart.

4. The unitary external defibrillator of claim 1 further comprising an ECG monitor, the controller being further configured to charge the capacitor from the battery and to discharge the capacitor through the electrodes in response to an arrhythmia detected by the ECG monitor.

5. The unitary external defibrillator of claim 1 wherein the housing is conformable to a human torso.

6. The unitary external defibrillator of claim 1 wherein the housing is waterproof.