发明名称 |
CONTROL OF ARBITRARY WAVEFORMS FOR CONSTANT DELIVERED ENERGY |
摘要 |
The present invention outlines structures and methods for delivering a controllable amount of energy to a patient by automatically compensating for the load impedance detected by an implantable-cardioverter defibrillator (ICD). The invention employs high speed, switching power converter technology for the efficient generation of high energy, arbitrary waveforms. Unlike a linear amplifier, switching power converters deliver high-energy waveforms with an efficiency that is independent of the size and amplitude of the desired waveform. An ICD that uses a switching power converter to deliver the desired energy to the patient stores the energy to be delivered in a storage capacitor. The converter then transforms this energy into an arbitrarily shaped output voltage-controlled or current-controlled waveform by switching the storage capacitor in and out of the output circuit at a high rate of speed. Preferably, the waveform comprises a ramp-type waveform. |
申请公布号 |
WO03047685(A3) |
申请公布日期 |
2003.09.18 |
申请号 |
WO2002US40037 |
申请日期 |
2002.12.03 |
申请人 |
MEDTRONIC, INC. |
发明人 |
HAVEL, WILLIAM, J.;DEGROOT, PAUL, J.;SINNER, THOMAS, W.;KUEHN, KEVIN;KEMMETMUELLER, GARY;WOLD, WARREN, W. |
分类号 |
A61B5/05;A61N1/04;A61N1/08;A61N1/39 |
主分类号 |
A61B5/05 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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