Cochlear SPrint Sound Processor Información técnica descargar pdf (Pagina 27)

CLINICAL GUIDANCE | SECTION ONE

If the coil is not on the implant when power optimization occurs, the power

level is set to the previously saved level (where available) or the default manual

level. Note: When the power level is optimized, a stimulation occurs which may

be heard by the recipient.

Optimize the power for a recipient’s sound processor when the recipient:

• is being ﬁt with a new MAP,

• is being converted to a new sound processor,

• reports intermittencies,

• reports poor battery life,

• reports changes in sound quality,

• has not visited your clinic before,

• has not visited the clinic in six months,

• has lost or gained weight; or

• has signiﬁcantly grown or cut their hair.

Optimizing CP810 and Freedom sound processors (Nucleus CI500 series,

Freedom implants and Nucleus 24 series implants)

At every programming session Custom Sound automatically performs the

following measurements that are required to estimate the power level and

compliance for the recipient.

• Impedances using the channel pulse width and stimulation mode of the MAP

at a current level of 80 CL.

• A short stimulation using the MAP pulse width, mode and rate at three

different current levels.

The recipient does not hear the stimulation.

When you write MAPs to either the CP810 or Freedom sound processors, the

measurements performed include stimulation at C-level on the channel with

the highest electrode voltage. The recipient may hear this stimulation. This

stimulation occurs for each MAP that you are writing to the sound processor

that has a different pulse width, rate or mode. If the coil is not on the head

when performing this measurement, you must initiate live voice again after re-

aligning the coil to obtain compliance information. If compliance measurements

have not been obtained and the coil is on the recipient’s implant, Custom Sound

estimates the power level when writing the MAP to the sound processor. If the

coil is not on the implant, the power is set to the previously saved power level if

available or to the default (manual) level (of 75%).

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Cochlear SPrint Sound Processor Información técnica Pagina 27