Method and system for controlling electrical conditions of tissue
AssigneeSaluda Medical Pty Ltd
InventorsPeter Scott Vallack SINGLE, James Hamilton WAH
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Abstract
An implantable device for controlling electrical conditions of body tissue. A feedback sense electrode and a compensation electrode are positioned proximal to the tissue to make electrical contact with the tissue. A feedback amplifier is referenced to ground, and takes as an input a feedback signal from the feedback sense electrode. The output of the feedback amplifier is connected to the compensation electrode. The feedback amplifier thus drives the neural tissue via the compensation electrode in a feedback arrangement which seeks to drive the feedback signal to ground, or other desired electrical value.
Claims19
A method for controlling electrical conditions of neural tissue, the method comprising:
- providing a plurality of electrodes including a nominal feedback sense electrode and a nominal compensation electrode, the electrodes being positioned proximal to the neural tissue and being in electrical contact with the neural tissue;
- connecting a feedback signal from the feedback sense electrode to an input of a feedback amplifier, and referencing the amplifier to a desired electrical value;
- and
- connecting an output of the feedback amplifier to the compensation electrode such that the feedback amplifier drives the neural tissue via the compensation electrode to the desired electrical value.
(canceled)
(canceled)
The method of claim 12, further comprising disconnecting the feedback amplifier during the application of the electrical stimulus.
The method of claim 12 wherein, during the application of the electrical stimulus, the feedback amplifier operates and is in connection with the feedback sense electrode and the compensation electrode.
The method of claim 13 wherein the measurement electrode is located outside the dipole formed by the stimulus electrode and the compensation electrode.
An implantable device for controlling electrical conditions of neural tissue, the device comprising:
- a plurality of electrodes including a nominal feedback sense electrode and a nominal compensation electrode, the electrodes being configured to be positioned proximal to the neural tissue to make electrical contact with the neural tissue and;
- a feedback amplifier configured to be referenced to a desired electrical value and to take as an input a feedback signal from the feedback sense electrode, an output of the feedback amplifier being connected to the compensation electrode such that the feedback amplifier is configured to drive the neural tissue via the compensation electrode to the desired electrical value.
Dependencies are inferred from the claim text.