Channel-specific adjustment of sound processing strategies based on electrode impedance
First Claim
1. A method comprising:
- directing, by a sound processing unit, an implantable cochlear stimulator to apply a plurality of stimulation pulses each having a first pulse width by way of a plurality of electrodes during a first stimulation frame, the plurality of electrodes including a first electrode and a set of remaining electrodes;
detecting, by the sound processing unit, a change in impedance of the first electrode;
adjusting, by the sound processing unit in response to the change in impedance of the first electrode, a pulse width parameter associated with the first electrode to define a second pulse width that compensates for the change in impedance of the first electrode; and
directing, by the sound processing unit, the implantable cochlear stimulator to apply a stimulation pulse having the second pulse width by way of the first electrode and a plurality of stimulation pulses having the first pulse width by way of the set of remaining electrodes during a second stimulation frame subsequent to the first stimulation frame.
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Accused Products
Abstract
An exemplary method includes a sound processing unit 1) directing an implantable cochlear stimulator to apply a plurality of stimulation pulses each having a first pulse width by way of a plurality of electrodes during a first stimulation frame, the plurality of electrodes including a first electrode and a set of remaining electrodes, 2) detecting a change in impedance of the first electrode, 3) adjusting, in response to the change in impedance of the first electrode, a pulse width parameter associated with the first electrode to define a second pulse width, and 4) directing the implantable cochlear stimulator to apply a stimulation pulse having the second pulse width by way of the first electrode and a plurality of stimulation pulses having the first pulse width by way of the set of remaining electrodes during a second stimulation frame subsequent to the first stimulation frame.
19 Citations
20 Claims
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1. A method comprising:
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directing, by a sound processing unit, an implantable cochlear stimulator to apply a plurality of stimulation pulses each having a first pulse width by way of a plurality of electrodes during a first stimulation frame, the plurality of electrodes including a first electrode and a set of remaining electrodes; detecting, by the sound processing unit, a change in impedance of the first electrode; adjusting, by the sound processing unit in response to the change in impedance of the first electrode, a pulse width parameter associated with the first electrode to define a second pulse width that compensates for the change in impedance of the first electrode; and directing, by the sound processing unit, the implantable cochlear stimulator to apply a stimulation pulse having the second pulse width by way of the first electrode and a plurality of stimulation pulses having the first pulse width by way of the set of remaining electrodes during a second stimulation frame subsequent to the first stimulation frame. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method comprising:
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directing, by a sound processing unit, an implantable cochlear stimulator to apply a plurality of stimulation pulses in accordance with a first set of stimulation parameters by way of a plurality of electrodes during a first stimulation frame, the plurality of electrodes including a first electrode and a set of remaining electrodes; detecting, by the sound processing unit, a change in impedance of the first electrode; generating, by the sound processing unit in response to the change in impedance of the first electrode, a second set of stimulation parameters for the first electrode, the second set of stimulation parameters differing from the first set of stimulation parameters and configured to compensate for the change in impedance of the first electrode; and directing, by the sound processing unit, the implantable cochlear stimulator to apply a stimulation pulse in accordance with the second set of stimulation parameters by way of the first electrode and a plurality of stimulation pulses in accordance with the first set of stimulation parameters by way of the set of remaining electrodes during a second stimulation frame subsequent to the first stimulation frame. - View Dependent Claims (15, 16)
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17. A system comprising:
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a processor configured to direct an implantable cochlear stimulator to apply a plurality of stimulation pulses each having a first pulse width by way of a plurality of electrodes during a first stimulation frame, the plurality of electrodes including a first electrode and a set of remaining electrodes; and an impedance detection module communicatively coupled to the processor and configured to detect a change in impedance of the first electrode; wherein the processor is further configured to adjust, in response to the change in impedance of the first electrode, a pulse width parameter associated with the first electrode to define a second pulse width that compensates for the change in impedance of the first electrode, and direct the implantable cochlear stimulator to apply a stimulation pulse having the second pulse width by way of the first electrode and a plurality of stimulation pulses having the first pulse width by way of the set of remaining electrodes during a second stimulation frame subsequent to the first stimulation frame. - View Dependent Claims (18, 19, 20)
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Specification