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Cardioverting device with stored energy selecting means and discharge initiating means, and related method

  • US 4,316,472 A
  • Filed: 08/09/1979
  • Issued: 02/23/1982
  • Est. Priority Date: 04/25/1974
  • Status: Expired due to Term
First Claim
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1. In a cardioverting device, comprising:

  • storage means for storing energy to convert an abnormal cardiac rhythm to normal sinus rhythm,delivery electrode means for discharging the stored energy into the heart of a wearer of the device, andswitch means for controlling the discharge of the stored energy into the heart of the wearer;

    said device further comprising;

    charging means for deliverying to said storage means said energy to convert said abnormal cardiac rhythm,determining means for determining when the stored energy has reached a predetermined magnitude for converting said abnormal cardiac rhythm, andinitiating means for initiating the discharge of converting energy into the heart of the wearer after the stored energy has reached said predetermined magnitude;

    the improvement wherein said device is an implantable externally programmable cardioverting device, and includes receiving means for receiving commands from external to the skin of the wearer of the device, said programming commands designating a predetermined magnitude of stored energy for converting said abnormal cardiac rhythm, said device also including selecting means responsive to said programming commands received by said receiving means for selecting said predetermined magnitude, from among a plurality of selectable magnitudes, of stored energy, for converting said abnormal cardiac rhythm.

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