System and method to automatically maintain electrical stimulation intensity
First Claim
1. A system, comprising:
- a programmer configured to instruct a stimulator to deliver electrical current to at least one electrode that is in contact with tissue of a patient to provide an effect, wherein;
the electrical current is representable using a current-time curve; and
adjustable stimulation parameters are used to define the electrical current including an area under the current-time curve that reflects a total charge transfer over a time period which causes the effect of the electrical current;
wherein the programmer is configured to automatically respond to a manual adjustment of at least a first one of the stimulation parameters by automatically adjusting at least a second of the stimulation parameters to maintain the total charge transfer by maintaining the area under the current-time curve over the time period.
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Accused Products
Abstract
Tissue stimulation systems generally include a pulse generating device for generating electrical stimulation pulses, at least one implanted electrode for delivering the electrical stimulation pulses generated by the pulse generating device, and a programmer capable of communicating with the pulse generating device. Stimulation pulses may be defined by several parameters, such as pulse width and amplitude. In methods of stimulating the tissue with the stimulation system, a user may adjust one of the parameters such as pulse width. The programmer may automatically adjust the pulse amplitude in response to the change in pulse width in order to maintain a substantially constant effect of the stimulation pulses.
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Citations
20 Claims
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1. A system, comprising:
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a programmer configured to instruct a stimulator to deliver electrical current to at least one electrode that is in contact with tissue of a patient to provide an effect, wherein; the electrical current is representable using a current-time curve; and adjustable stimulation parameters are used to define the electrical current including an area under the current-time curve that reflects a total charge transfer over a time period which causes the effect of the electrical current; wherein the programmer is configured to automatically respond to a manual adjustment of at least a first one of the stimulation parameters by automatically adjusting at least a second of the stimulation parameters to maintain the total charge transfer by maintaining the area under the current-time curve over the time period. - View Dependent Claims (2, 3, 4)
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5. A non-transitory machine-readable medium including instructions, which when executed by a machine, cause the machine to:
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instruct a stimulator to deliver electrical current to at least one electrode that is in contact with tissue of a patient to provide an effect, wherein; the electrical current is representable using a current-time curve; and adjustable stimulation parameters are used to define the electrical current including an area under the current-time curve that reflects a total charge transfer over a time period which causes the effect of the electrical current; and automatically respond to a manual adjustment of at least a first one of the stimulation parameters by automatically adjusting at least a second of the stimulation parameters to maintain the total charge transfer by maintaining the area under the current-time curve over the time period. - View Dependent Claims (6, 7, 8, 9, 10, 11)
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12. A method, comprising:
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delivering electrical current to at least one electrode that is in contact with tissue of a patient to provide an effect, wherein; the delivered electrical current is representable using a current-time curve; and adjustable stimulation parameters are used to define the delivered electrical current including an area under the current-time curve that reflects a total charge transfer over a time period which causes the effect of the delivered electrical current; and adjusting at least a first one of the stimulation parameters, and then automatically adjusting at least a second of the stimulation parameters in response to adjusting the at least the first of the stimulation parameters, wherein the at least the second of the stimulation parameters is automatically adjusted to maintain the total charge transfer by maintaining the area under the current-time curve over the time period. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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Specification