Advertisement

The Pulse Generator

  • Randall S. Nelson
Chapter
Part of the Developments in Cardiovascular Medicine book series (DICM, volume 188)

Abstract

THE FIRST ICDs, implanted in 1980, were large (162 cm3, 292 g)1 compared to the most current devices that are about 60 cm3 and 110 g. Since that time, emphasis on packaging of current ICDs has focused on the continual increase of device functions, whether it be therapies (pacing, different defibrillation modes) or features (telemetry, electrocardiogram storage, etc.), with continuing emphasis on decreasing the package size. Until recently, most devices have required abdominal implantation because of their size, as was the case with early pacemakers. Whereas pacemaker development had definite leaps in technology to allow the downsizing of that device (lithium batteries, integrated circuits, hermetic enclosures), size reduction of the ICD has been a net result of paying close attention to detail and making small reductions that have added up to the overall package efficiency.

Keywords

Pulse Generator Implantable Cardioverter Defibrillator Therapy Lithium Iodide Terminal Block Defibrillation Pulse 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    Mirowski M. The automatic implantable cardioverter-defibrillator: An Overview. J Am Coll Cardiol 1985;6:461–466.PubMedCrossRefGoogle Scholar
  2. 2.
    Sassouni C. An industry overview of the market for implantable cardioverterdefibrillators. Raymona James & Ass., St. Petersburg, Florida, 1995.Google Scholar
  3. 3.
    Hief C, Podczeck A, Frohner K, et al. Cardioverter discharges following sensing of electrical artifact due to fluid penetration in the connector port. PACE 1995;18:1589–1591.PubMedCrossRefGoogle Scholar
  4. 4.
    International Organization for StandardizationGoogle Scholar
  5. 5.
    CEN/CENELEC Joint Working Group on Active Implantable Medical DevicesGoogle Scholar
  6. 6.
    Cazeau S, Ritter P, Lazarus A, et al. Pacemaker miniaturization: a good trend? PACE 1996;19:1–3.PubMedCrossRefGoogle Scholar
  7. 7.
    Adams TP, Brumwell DA, Perttu JS, Supino CG, inventors. Angeion Corp., assignee. Improved dual battery power system for an implantable cardioverter defibrillator. US Patent No. 5,372,605. 1994 Dec 27.Google Scholar
  8. 8.
    Kleman JM, Castle LW, Kidwell GA, et al. Nonthoracotomy versus thoracotomy implantable defibrillators. Circulation 1994;90:2833–2842.PubMedCrossRefGoogle Scholar
  9. 9.
    Dougherty AH, Wolbrette D. Implantable defibrillator generator migration. Circulation 1994;90:1557PubMedCrossRefGoogle Scholar
  10. 10.
    Robinson LA, Windle JR. Defibrillator twiddler’s syndrome. Ann Thorac Surg 1958:247–249.Google Scholar
  11. 11.
    Mehta D, Lipsius M, Suri RS, et al. Twiddler’s syndrome with the implantable cardioverter-defibrillator. Am Heart J 1992;123:1079–1082.PubMedCrossRefGoogle Scholar
  12. 12.
    de Buitleir M, Canver CC. Twiddler’s syndrome complicating a transvenous defibrillator lead system. Chest 1996;109:1391–1394.PubMedCrossRefGoogle Scholar
  13. 13.
    Beauregard LM, Russo AM, Heim J, et al. Twiddler’s syndrome complicating automatic defibrillator function. PACE 1995;18:735–737.PubMedCrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 1996

Authors and Affiliations

  • Randall S. Nelson

There are no affiliations available

Personalised recommendations