Terminology of Programming
Coded by the firing rates of the nerve cells in the auditory nerve.
What is pitch?
This term describes when a patient uses a CI in one ear and a hearing aid in the other ear. It helps improve speech understanding and they are able to enjoy music more.
What is bimodal CI use?
The number of biphasic pulses given to a single electrode in one second.
What is the stimulation rate?
This type of implantable bone-conduction device may not be compatible with patients who have a SNHL greater than mild, as attenuation of the sound as it gets transmitted through the skin will result in insufficient power.
What is transcutaneous?
Only three hospitals in the United States perform surgery to install this implanted device.
What is an Auditory Brainstem Implant.
Slow changes in intensity fluctuations (2-50 Hz) vs. fast changes in intensity fluctuations (>150 Hz).
What is amplitude envelope vs. fine temporal structure?
These frequency sounds allow you to detect the vowels in words like "ah" and convey melody in speech.
What are low-frequency sounds?
The company that uses Peak Picking/n-of-m.
What is Cochlear Ltd.?
This implantable device converts electrical signals from the DSP into mechanical oscillatory energy.
What is a middle ear implant?
The algorithm used to transform the important features of the incoming acoustical signal into an electrical code.
What is signal coding?
Spectral concentration of acoustic energy that occur for voiced speech sounds that are created by the resonance of the vocal tract.
What is formants?
Hybrid CI users may eventually need this if they lose residual hearing.
What is re-implantation with a full length electrode?
The three variables of a signal that CI coding is trying to represent.
What are amplitude, frequency, and temporal cues?
One form of implantable bone-conduction device involves a titanium fixture that is implanted into the skull where it osseointegrates, with this fixture protruding from the skin for an abutment to be attached. This abutment can then be attached to the sound processor via "snap coupling".
What is percutaneous?
Within an electromagnetic bone conduction transducer, this specific moving component is made of ferrite, is surrounded by wired coils, and contains a permanent magnet used to create a static magnetic field.
What is an armature?
The change in the acoustic properties of speech that occurs when two speech sounds are produced close together compared to the acoustic properties that exist when those sounds are spoken in isolation.
What is co-articulation cues?
This device was originally developed for patients with NF2. It bypasses the inner ear and the auditory nerve to directly stimulate the auditory pathway in the brainstem.
What is an auditory brainstem implant?
The general coding strategy by Med-El that is associated with low frequency focus by stimulating the apical electrode contact(s).
What is Fine Structure Processing (FSP)?
The transducers most commonly used in modern bone-conduction systems.
What is an electromagnetic transducer?
The only company approved to implant CIs for SSD by the FDA.
What is Med-El?
This company uses this method of programming, which involves the creation of virtual channels so the CI can stimulate electrodes that aren't technically there, with the goal of giving patients better speech understanding.
What is Advanced Bionics using current steering?
The 60/60 guideline is used as the standard for identifying traditional CI candidates; however, patients who technically "miss" this rule and have a drop-off, precipitous high-frequency hearing loss may still qualify for this type of implant.
What is a hybrid implant?
The coding strategy that uses channel steering across 120 virtual channels.
What is HiRes Fidelity?
This type of transducer should not be used for moderate to severe hearing loss, as it provides low output with a narrow bandwidth when compared to other transducers.
What is piezoelectric transducer?
The two ways that you can change the patient's perception of loudness within CI programming.
What is increasing the amplitude of the pulse or increasing the width of the pulse.