Controlling charge flow in the electrical stimulation of tissue
First Claim
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1. An implantable medical device, comprising:
- a waveform generator configured to generate a stimulation pulse and to deliver the stimulation pulse to a patient'"'"'s tissue through one or more electrodes; and
a coulomb counter configured to;
receive a charge setting value that is expressed in terms of electrical charge;
measure an amount of electrical charge delivered to the patient'"'"'s tissue by the stimulation pulse by measuring an electrical parameter along a conductive path between the waveform generator and the one or more electrodes; and
generate a control signal to cause the waveform generator to cease delivery of the stimulation pulse when the measured amount of electrical charge equals the charge setting value.
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Abstract
Systems of techniques for controlling charge flow during the electrical stimulation of tissue. In one aspect, a method includes receiving a charge setting describing an amount of charge that is to flow during a stimulation pulse that electrically stimulates a tissue, and generating and delivering the stimulation pulse in a manner such that an amount of charge delivered to the tissue during the stimulation pulse accords with the charge setting.
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Citations
18 Claims
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1. An implantable medical device, comprising:
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a waveform generator configured to generate a stimulation pulse and to deliver the stimulation pulse to a patient'"'"'s tissue through one or more electrodes; and a coulomb counter configured to; receive a charge setting value that is expressed in terms of electrical charge; measure an amount of electrical charge delivered to the patient'"'"'s tissue by the stimulation pulse by measuring an electrical parameter along a conductive path between the waveform generator and the one or more electrodes; and generate a control signal to cause the waveform generator to cease delivery of the stimulation pulse when the measured amount of electrical charge equals the charge setting value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An implantable medical device system, comprising:
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an external controller configured to receive a charge setting value that is expressed in terms of electrical charge from a user; and an implantable medical device comprising; a waveform generator configured to generate a stimulation pulse and to deliver the stimulation pulse to a patient'"'"'s tissue through one or more electrodes; a data receiver configured to receive the charge setting value from the external controller; and a coulomb counter configured to; receive the charge setting value from the data receiver; measure an amount of electrical charge delivered to the patient'"'"'s tissue by the stimulation pulse by measuring an electrical parameter along a conductive path between the waveform generator and the one or more electrodes; and generate a control signal to cause the waveform generator to cease delivery of the stimulation pulse when the measured amount of electrical charge equals the charge setting value. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification