Shield for implantable cardioverter defibrillator

专利名称：Shield for implantable cardioverter

defibrillator

发明人：Dennis A. Brumwell,Joseph S. Perttu,Mark W.

Kroll,Randall S. Nelson

申请号：US08/486759申请日：19950607公开号：US05749910A公开日：19980512

摘要：An implantable cardioverter defibrillator capable of subcutaneous positioningwithin a patient delivers at least one electrical cardioversion/defibrillation countershocksto the heart of the patient. The implantable cardioverter defibrillator includes a housing,circuitry positioned within the housing to control delivery of the countershocks, and anenergy source coupled with the circuitry to provide electrical energy to a capacitor in thecircuitry that stores the electrical energy for delivery of the countershocks. Because thecircuitry is susceptible to undesirable electromagnetic coupling effects of origin externalto the circuitry, particularly the capacitive coupling effects between the circuitry and thehousing of the device when at least a portion of the housing is utilized as an electrode,the implantable cardioverter defibrillator also includes a conductive shield, disposedbetween the housing and the circuitry, to shield the circuitry against such undesiredcoupling effects.

申请人：ANGEION CORPORATION

代理人：Brad Pedersen

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