Surgery: light – thermal – and electrical application – Light – thermal – and electrical application – Electrical therapeutic systems
Patent
1993-09-23
1995-08-08
Cohen, Lee S.
Surgery: light, thermal, and electrical application
Light, thermal, and electrical application
Electrical therapeutic systems
607 36, A61N 139
Patent
active
054394821
ABSTRACT:
A practical and effective prophylactic implantable cardioverter defibrillator (ICD) that has the potential to benefit a large number of patients with less severe cardiac conditions who now lack the opportunity to be served in a practical way by existing ICD systems. Unlike existing ICD systems, the prophylactic ICD is designed to deliver between about 100 to 200 shocks, with each shock having a maximum delivered energy value of only about 25 joules. As a result, the initial stored energy requirements of the prophylactic ICD system are less than about 12,000 joules, and both the battery and the capacitor systems can be significantly smaller than existing ICD system. The smaller battery and capacitor systems produce in an implantable device having a physical size small enough to permit implantation of the device in the pectoral region. By using the particular ranges of number of shocks and maximum energy value for each shock to design the ICD system, the result is a practical prophylactic ICD system that will provide effective prophylactic therapy for prospective cardiac incidents in patients with less severe cardiac conditions.
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patent: 4800883 (1989-01-01), Winstrom
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patent: 5241960 (1993-09-01), Anderson et al.
Schuder et al "Experimental Ventricular Defibrillation with an Automatic and Completely Implanted System" vol. XVI Trans Amer Soc Artif Int Organs, 1970.
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Winkle et al "Practical Aspects of automatic cardioverter/defibrillator implantation" Progress in Cardiology pp. 1335-1346, Nov. 1984.
Zipes et al "Early Experience with an Implantable Cardioverter", The New England Journal of Medicine, pp. 485-489, 23 Aug. 1984.
Adams Theodore P.
Kroll Mark W.
Angeion Corporation
Cohen Lee S.
Parker Marianne
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