Cochlear SPrint Sound Processor Informações Técnicas Página 26
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SECTION ONE | CLINICAL GUIDANCE
24
The power level required is dependent on the type of MAP, its various
parameters, and the individual recipient. Power optimization selects the most
appropriate power level for the recipient and each MAP and this is shown
as a percentage (ranging from 0 - 100%). In general, a MAP with a higher
stimulation rate or higher current levels requires a higher power level (for
example, Custom Sound
™
may specify a power level of 97% to effectively run
such a MAP). Similarly, a MAP with a lower rate or lower current levels requires
a lower power level (for example, Custom Sound may specify a power level of
52% to effectively power such a MAP). Custom Sound automatically optimizes
the power level when you click ‘Batteries’ in the Battery Suitability box or write
a program to the sound processor. It is done at this time, because a number of
implant operating characteristics must be measured using telemetry and these
can only be made after the MAP parameters have been chosen.
Some battery types support higher power levels than other types of batteries
as shown in the following table.
Sound processor Battery Type Manual Power Level
Limit
CP810 Standard 2 zinc-air 77%
CP810 Compact
rechargeable
Li Ion rechargeable 100%
CP810 Standard
rechargeable
Li Ion rechargeable 100%
Freedom
™
Bodyworn
2xAAA 100%
Freedom BTE 3 zinc-air 75%
Freedom BTE rechargeable Li Ion rechargeable 91%
Freedom Mini BTE 2 zinc-air 56%
Use the compliance and battery suitability section of the software to
determine the best battery option(s) for the individual. If a recipient has
a power level that exceeds the recommended power level for a certain
sound processor, Custom Sound will provide a message stating that sound
degradation may occur towards the end of battery life.
There is the option to use an ‘Auto’ or a ‘Manual’ method for setting the
Power level. The default is to use the Auto option which will automatically
calculate the optimal Power Level setting during the programming session. It
is recommended that Auto Power be used wherever possible. If the manual
option is selected, compliance should be remeasured at the specified power
level to avoid ‘out of compliance’. If the power level is increased manually
above the optimized power level, it is important to choose a battery type that
will support the increased power level.
- Cochlear 1
- Getting started 5
- T-level Assessment Procedures 6
- C-level Assessment Procedures 7
- 1.1.1 Behavioural Procedures 9
- Figure 2 : Loudness 18
- Base Level = 4 18
- Q varies 18
- 1.5 STIMULATION MODES 19
- Figure 3: Bipolar 20
- 1.6 TELEMETRY MEASUREMENTS 22
- and N24 series Cochlear 23
- Implant Systems 23
- 1.7 VOLTAGE COMPLIANCE 23
- 1.7.1 CI500 series, Freedom 23
- 1.7.2 Nucleus 24
- 24 System 24
- 1.7.3 Nucleus 25
- 22 System 25
- 1.8 POWER OPTIMIZATION 25
- 1.9 SOUND CODING STRATEGIES 29
- 1.9.1 ACE 30
- /ACE (RE) 30
- 1.9.2 SPEAK 31
- 1.9.3 CIS/CIS (RE) 33
- 1.11.1 Microphone Sensitivity 36
- 1.11.2 Volume Setting 37
- 1.12 NUCLEUS 38
- SMARTSOUND 38
- 1.12.1 ADRO 38
- 1.12.2 Whisper 39
- Whisper boosts soft 40
- 1.12.3 Focus (using Beam 41
- Figure 13 : A block 42
- 1.12.4 Zoom 45
- CP810 Zoom 46
- Freedom Dir / 46
- CP810 Standard 46
- (without zoom) 46
- Processor 46
- 1.12.5 Autosensitivity 47
- 1.13 SMARTSOUND 48
- ENVIRONMENTS 48
- Environment Options 49
- EVERYDAY 49
- 1.14 OBJECTIVE MEASUREMENTS 51
- 1.15 GUIDANCE FOR FM FITTINGS 53
- 1.15.1 CP810 Sound Processors 53
- SECTION 2: PROGRAMMING 57
- RECOMMENDATIONS FOR 57
- SPECIALTY DEVICES 57
- Figure 2: 58
- Descriptive 58
- Nucleus 24 ABI 58
- 2.1.1.2 Programming the ABI 59
- Pitch magnitude 1 – 100 60
- Loudness 1 – 10 60
- Figure 8 : T-levels 66
- 2.1.1.3 Managing Side Effects 67
- 2.1.1.4 Fine Tuning the ABI 68
- Figure 9 : Nucleus 70
- ABI 24M pitch 70
- 2.1.1.6 Rehabilitation 71
- 2.1.1.7 ABI Worksheets 72
- 2.1.2 THE NUCLEUS 74
- 24 DOUBLE ARRAY 74
- CLINICAL GUIDANCE 77
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