Current and Past Systems Flashcards
What are the components of a CI system?
Internal and external
What are the components of the internal system?
Implant (ICS)
Electrode array
What are the components of the external system?
sound processor
headpiece
accessories
How many ICS’s does AB have?
4 (C 1.0, C 1.2, CII, HiRes 90K
How many CI system generations does AB have?
5 (current is HiResolution Bionic Ear System)
What are the components of the current Bionic Ear System?
HiRes 90K ICS, Harmony sound processor, Neptune Freestyle processor
Name to various electrode arrays AB has developed.
Standard aray
Enhanced Bipolar array
HiFocus array
HiFocus (ICS-2) array
What are some of the first technologies introduced by AB?
multiple programs used in sound processors
LED and audible alarms
audio mixing
bi-directional telemetry
What are the components of an ICS?
casing/receiver packaging output circuits capacitors magnet custom chip bi-directional telemetry electrode array
List the electronics capability available with the current ICS systems (CII and HiRes 90K)
83,0000 pps 16 output circuits ClearVoice Fidelity 120 HiResolution, MPS, CIS Neural Response Imaging (NRI)
Describe output circuits
allows significant flexibility in sound processing
able to produce different wave forms on a channel by channel basis
analog. vs. pulsatile
capability to stimulate sequentially, partially simultaneously or fully simultaneously
C1- 8 independent output circuits
CII/90K - 16 independent output circuits
What is a capacitor?
electrical component that holds a charge. Necessary to provide protection against leakage of harmful DC current that can damage neural tissue.
At what Telsa can an implant recipient get an MRI at?
.3-1.5 Tesla
What is the advantage to the custom chip in AB ICS?
capability to sample and deliver the incoming signal at fast stimulation rates (83,000 pps).
backward compatible.
Describe telemetry
Bi-directional telemetry: sends information in both directions and monitors communication between internal and external hardware.
this is an essential feature for audible alarms/LED, measuring impedances and power management
What is forward telemetry?
sends across data and power information from external to internal.
occurs at 49 MHz.
What is backward telemetry?
provide information about stats of implant.
allows system to continually monitor function, even during operation.
occurs at 10.7 MHz.
Monopolar coupling
The stimulating/active electrode is intracochlear
ground electrode is extracochlear
able to recruit more nerve fibers to obtain adequate loudness levels with less current.
Bipolar coupling
Both stimulating and ground electrodes are intracochlear.
stimulate more accurately
recruits fewer nerve fibers which requires more current to obtain adequate loudness levels
(chance of more spread of current)
What are the differences between the Auria and Harmony sound processors?
Harmony has a built in LED, telecoil, and ability to utilize Fidelity 120 and ClearVoice
List the sound processing strategies that AB has developed over the years.
CIS: continued interleveled sampler
CA: compressed analog (obsolete)
SAS: simultaneous analog stimulation (used with C1)
MPS: multiple pulsitile sample
HiRes: his resolution (paired or sequential)
Fidelity 120: current steering
ClearVoice: noise reduction
1.0 system
*only used in clinical trials
- 0 sound processor (currently used for impedance/lock evaluations)
- 0 ICS with radial/standard bipolar array (used until 1994)
1st generation CLARION
introduced in 1996
1.2 ICS with spiral electrode array
Headpiece 5300
What is the difference between an 5300 and 5301 headpiece?
5300 used for thin skin flap
5301 used for thicker skin flap
1.2 sound processor
metal casing which are more resistant to static electricity compatible with C1 first to offer multiple program slots first to offer volume and sensitivity controls 2.5 mm jack rechargeable NiCad batteries or 3 AA diagnostic LED (red only) programmed in SCLIN
1.2 ISC
adult approval in August 1996
pediatric approval in June 1997
standard bipolar and enhanced bipolar and HiFocus electrode arrays?
Describe enhanced bipolar array
used from March 1997 to 1999/2000 spiral array (modiollar hugging) right and left ear specific ball shaped electrodes (more spread of current) lateral and medial electrode coupling labeled L1, M1, L2, M2 to allow larger current spread CIS, MPS, SAS sound processing. only used 7 channels due to coupling
2nd Generation system
introduced in 1997
S-Series sound processor
Headpiece (5300/5301)
1.2 ICS (spiral electrode array and positioning system
S-Series sound Processors
body worn compatible with C1 3 program slots audible alarms 3.5 mm jack no audio mixing diagnostic LED Lithium rechargeable battery programming in SCLIN uses single action AGC
3rd Generation System
Introduced in 2001 Platinum Series Processor (PSP) CII BTE or Platinum BTE Platinum headpiece (PHP) CII ICS with HiFocus or HiFocus II array
Platinum Sound Processor
3 program slots lithium ion recharagable battery built in microphone tester compatible with ALL ICS LED Programmable alarms audio mixing programmed in SCLIN or Soundwave
PSP LED indicator -battery status
4 quick blinks = battery fully charged
2-3 quick blinks = battery sufficiently charged
1 quick blink = battery near depletion
PSP LED indicator-lock status
LED will synchronously flash red if lock is lost
PSP LEd indicator-mic/system status
Green LED flickers in response to loud input
solid green light if in monitor mode
PSP Audible Alarms
SCLIN:
loss of lock (1 beep/second)
low battery ( 2 quick beeps/ 5 seconds)
dead battery (solid beep)
SoundWave
loss of lock (1 beep/second)
low battery (1 longer beep/second)
CII BTE
compatible with CII and HiRes 90K ICS
CIS, MPS, SAS, and HiRes sound processing
3 program slots in SW ( 2 program slots and one empty in SCLIN)
PHP headpiece
toggle switch
PowerCell rechargeable battery
Platinum BTE
compatible with all ICS (C1, CII, 90K)
CIS, MPS, SAS, HiRes sound processing strategies
3 program slots in SoundWave (2 program slots and 1 empty in SCLIN)
toggle switch
PowerCell rechargeable battery
How can you tell the difference between a CII and Platinum BTE?
CII BTE has blue underside
Platinum BTE has black underside
Common features between CII and Platinum BTE.
omni-directional forward facing microphone
toggle switch (can be used of volume or program selection)
auxillary audio earhook option
T-mic
CII ICS
approved in April 2001 16 independent output circuits houses amplifier for NRI internal memory for use with PoEM programmed in SCLIN or SW
HiFocus electrode array (helix)
used 1999-present
16 planar electrodes all pointing to spiral ganglion cells
slastic partitions direct current toward nerve
not ear specific
1J electrode array
approved in November 2002 more complete insertion no need for positioner better when completing cochleostomy greater visibility during insertion
4th generation system
Introduced in 2003 PSP Auria Auria headpiece HiREs 90K ICS
Describe the Firefly earhook
earhook with LED built in to use with Auria sound processor
program selection: flickers 1-2-3 times depending on which program selected
System communication status: steady light if system is locked and transmitting signal
flicker on/off if system is not communicating properly
Battery status: will not illuminate if battery depleted.
Difference between Auria and 90K headpiece
Auria:
low profile
cable permanently attached
internal fixed magnet (can add 1 magnet to underside if needed)
90K:
removable cable
raised underside to account for raised 90K ICS
5th generation system
introduced in 2006 PSP Harmony BTE Fidelty 120 sound processing 90K ICS
What are the features of the Harmony sound processor?
flexible wearing options that adapt to needs of all ages
Sleek headpiece design
advanced water protection
fully programmable childproof controls
eco-friendly batteries
IntelliLInk safety feature prevents bilateral mismatches
KinderClip and Snuggie accessories
FM compatibility
earhook available in standard and small sizes
6th generation System
Harmony Neptune Fidelity 120/ClearVoice HiRes 90K UHP and Aqua Mic
Neptune
removable controls freestyle design 1 AAA battery (disposable or rechargeable) compatible with 90K and CII ICS waterproof and swimable
