Sequenced and simultaneous stimulation for treating congestive heart failure
First Claim
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1. A method comprising:
- providing at least two implantable electrostimulation electrodes in contact with cardiac tissue, the at least two implantable electrostimulation electrodes electrically coupled to a current-controlled implantable pulse generator;
generating a wireless control signal to control sourcing, or sinking, of an electrostimulation current, the wireless control signal generated using an implantable controller separate and distinct from (1) the electrostimulation electrodes and (2) the current-controlled implantable pulse generator, and the implantable controller wirelessly coupled to the current-controlled pulse generator;
sourcing a current to one or more implantable electrostimulation electrodes in response to the received wireless control signal;
sinking a current from one or more implantable electrostimulation electrodes in response to the received wireless control signal; and
instantaneously balancing the total current sourced with a total current sunk concurrently.
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Abstract
A patient'"'"'s ejection fraction is maximized through simultaneous sensing and stimulating across multiple electrodes. In one exemplary embodiment, a catheter or lead having multiple electrodes connected to a pulse generator is used. The pulse generator provides individual current control of the stimulus applied to each electrode, and further includes the ability to sense intrinsic and evoked depolarization through multiple electrodes. In another exemplary embodiment, a multiplicity of individual implantable microstimulators, each having its own current source and/or sensor and electrodes, cooperate in concert to provide multi-site stimulation and sensing.
50 Citations
8 Claims
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1. A method comprising:
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providing at least two implantable electrostimulation electrodes in contact with cardiac tissue, the at least two implantable electrostimulation electrodes electrically coupled to a current-controlled implantable pulse generator; generating a wireless control signal to control sourcing, or sinking, of an electrostimulation current, the wireless control signal generated using an implantable controller separate and distinct from (1) the electrostimulation electrodes and (2) the current-controlled implantable pulse generator, and the implantable controller wirelessly coupled to the current-controlled pulse generator; sourcing a current to one or more implantable electrostimulation electrodes in response to the received wireless control signal; sinking a current from one or more implantable electrostimulation electrodes in response to the received wireless control signal; and instantaneously balancing the total current sourced with a total current sunk concurrently. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification