Method and apparatus for applying a rectilinear biphasic power waveform to a load
First Claim
1. A system to deliver therapeutic energy to a patient, the system comprising:
- a storage capacitor configured to store and release the therapeutic energy;
a h-bridge circuit boost converter circuit coupled to the storage capacitor; and
a current flow control circuit coupled to the boost converter circuit and comprising a plurality of control circuits configured to control a current output from the current flow control circuit in a therapeutic biphasic voltage waveform upon release of the therapeutic energy from the storage capacitor,wherein the therapeutic biphasic voltage waveform comprises a ramped increase in voltage from approximately zero volts to a desired therapeutic voltage level over a time interval greater than 1 millisecond and less than a time associated with a phase switch of the therapeutic biphasic voltage waveform.
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Accused Products
Abstract
A system to deliver therapeutic energy to a patient, the system including a storage capacitor configured to store and release the therapeutic energy, a boost converter circuit coupled to the storage capacitor, and a current flow control circuit coupled to the boost converter circuit and including a plurality of control circuits configured to control a current output from the current flow control circuit in a therapeutic biphasic voltage waveform upon release of the therapeutic energy from the storage capacitor, wherein the therapeutic biphasic voltage waveform includes a ramped increase in voltage from approximately zero volts to a desired therapeutic voltage level over a time interval greater than 1 millisecond and less than a time associated with a phase switch.
20 Citations
19 Claims
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1. A system to deliver therapeutic energy to a patient, the system comprising:
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a storage capacitor configured to store and release the therapeutic energy; a h-bridge circuit boost converter circuit coupled to the storage capacitor; and a current flow control circuit coupled to the boost converter circuit and comprising a plurality of control circuits configured to control a current output from the current flow control circuit in a therapeutic biphasic voltage waveform upon release of the therapeutic energy from the storage capacitor, wherein the therapeutic biphasic voltage waveform comprises a ramped increase in voltage from approximately zero volts to a desired therapeutic voltage level over a time interval greater than 1 millisecond and less than a time associated with a phase switch of the therapeutic biphasic voltage waveform. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification