Systems and Methods for Determining a Threshold Current Level Required to Evoke a Stapedial Muscle Reflex
First Claim
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1. A cochlear implant system comprising:
- an implantable cochlear stimulator configured to be implanted within a patient and generate a stimulation current having an adjustable current level;
one or more electrodes communicatively coupled to said stimulator and configured to apply said stimulation current to one or more locations within an ear of said patient; and
a probe configured to acquire sound data used to derive an acoustic reflectance of said ear;
wherein said implantable cochlear stimulator is configured to adjust said current level of said stimulation current until a change in said acoustic reflectance above a threshold is detected.
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Abstract
Exemplary cochlear implant systems include an implantable cochlear stimulator configured to be implanted within a patient and generate a stimulation current having an adjustable current level, one or more electrodes communicatively coupled to the stimulator and configured to apply the stimulation current to one or more locations within an ear of the patient, and a probe configured to acquire sound data used to derive an acoustic reflectance of the ear. The implantable cochlear stimulator is configured to adjust the current level of the stimulation current until a change in the acoustic reflectance above a threshold is detected.
85 Citations
20 Claims
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1. A cochlear implant system comprising:
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an implantable cochlear stimulator configured to be implanted within a patient and generate a stimulation current having an adjustable current level; one or more electrodes communicatively coupled to said stimulator and configured to apply said stimulation current to one or more locations within an ear of said patient; and a probe configured to acquire sound data used to derive an acoustic reflectance of said ear; wherein said implantable cochlear stimulator is configured to adjust said current level of said stimulation current until a change in said acoustic reflectance above a threshold is detected. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A system comprising:
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an implantable cochlear stimulator configured to be implanted within a patient and generate a stimulation current having an adjustable current level; one or more electrodes communicatively coupled to said stimulator and configured to apply said stimulation current to one or more locations within an ear of said patient; a sound processor communicatively coupled to said stimulator and configured to control said stimulator in accordance with one or more stimulation parameters; a fitting station communicatively coupled to said sound processor; and a probe communicatively coupled to said fitting station and configured to acquire sound data; wherein said fitting station is configured to derive an acoustic reflectance of said ear in accordance with said sound data; and wherein said stimulator is configured to adjust said current level of said stimulation current until a change in said acoustic reflectance above a threshold is detected by said fitting station. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. A method of determining a threshold current level required to evoke a stapedial muscle reflex within a patient, said method comprising:
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applying a stimulation current having an adjustable current level to one or more locations within an ear of a patient; measuring with a fitting station an acoustic reflectance of said ear during said application of said stimulation current; adjusting said current level of said stimulation current until a change in said acoustic reflectance above a threshold is detected; and setting said threshold current level to a value related to said current level of said stimulation current that causes said change in said acoustic reflectance. - View Dependent Claims (19, 20)
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Specification