Troubleshooting Cochlear Implant | Processor Will Not Turn On

By Eric Sherman

Have you ever placed a fully charged battery into your cochlear implant processor only to find out it doesn’t power up? 

Dirt on battery terminal

In a blog story, AAA Batteries For Cochlear Implant Processors, I wrote about how rechargeable batteries can lose their capability to store a charge above 750 milliamps (mAh). When this happens the processor tends to turn on and then shut down or may not power on at all.  Well there may be another issue with the battery that can fool you into thinking your processor has gone bad.

Over time, the processor’s battery terminals can become dirty.  When this happens, the dirt forms a barrier between the battery and the processor’s battery terminals preventing your processor from turning on.

This happened to my son’s processor.  After a weekend of totally refreshing the rechargeable batteries, one of his processors didn’t power on.  I knew the batteries were good because they all tested above 900 mAh and they worked in the other processor.  Plus, my son had recently seen his audiologist for a mapping session and all his equipment checked out.  I thought I was going to have to buy a new processor because his is out of warranty.

Materials to Clean AB Neptune Processor

My son is bilaterally implanted and wears Advanced Bionics Neptune processors on a daily basis.  The Neptune processors are very durable, so it is hard to imagine that it would die from everyday use.

When examining the processor, I noticed what looked like a scuff mark on the brass battery terminal.  I grabbed a Q-tip and 91% isopropyl alcohol and cleaned the terminals in the processor.  The scuff mark came right off.  After making sure everything looked clean, I popped in a fully charged battery and the processor powered right up and has been working ever since. 

Practicing good maintenance on your hearing devices will help them last and stay in good working order. Make sure you follow your manufacturer’s instructions on maintenance and troubleshoot before you start looking at replacing your device. It might just save you time and a lot of money.

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Overstimulation May Be Why Your Child Won’t Wear Cochlear Implant processors

By Eric Sherman

Recently I shared why my child refused to wear his CochlearImplant(s). Unfortunately, the recommendation from others, including hearing health professionals, was just do your best to keep your child’s processor on.

Forcing a child to wear a cochlear implant that they clearly don’t want to wear is not the correct approach. Refusing to wear CI processor(s) is generally a symptom of a problem that a child can’t necessarily express. Their behavior becomes the only way to communicate the issue.

Pediatric Audiologist Joan Hewitt, Au.D., who specializes in cochlear implants says, “Our brains crave hearing.  Children should want to have their CIs on all the time.  If a child resists putting the CIs on in the morning, cries or winces when they are put on, or fails to replace the headpiece when it falls off, there is a strong possibility that the CIs are providing too much stimulation.   Some children appear shy or withdrawn because the stimulation is so great that interacting is painful. Others respond to over stimulation by being loud and aggressive.” 

In the article, "Overstimulation in Children with Cochlear Implants," Berger et al (2011) found symptoms which indicated children were overstimulated by their cochlear implants. They included: reluctance or refusal to wear the device, overly loud voices, poor articulation, short attention span or agitated behavior, and no improvement in symptoms despite appropriate therapy. When the researchers reduced the stimulation levels, they found very rapid improvement in voice quality and vocal loudness and gradual improvement in articulation.  Finally, they found "surprising effects on the children's behavior" such that the parents reported a marked improvement in attention and reduction in agitation.

If you find that your child is refusing to wear their cochlear implants, an overstimulating map could be the problem.  You should discuss the issue in detail with your child’s audiologist.

Jennifer Mertes, AuD, CCC-A, and Jill Chinnici, MA, CCC-A wrote in their article,

“Cochlear Implants — Considerations in Programming for the Pediatric Population,” (2006) AudiologyOnline, that children are not little adults. To address their CI needs, they require an experienced clinician. Most children are unable to provide accurate feedback while the audiologist programs their cochlear implant and therefore, the clinician must take many things into account:

1. The audiologist's past experiences with other patients
   
   
2. Updated information regarding the child's progress (from parents, therapists and teachers)
   
   
3. Audiometric test measures
   
   
4. Observations of the child during programming
   
   
5. Objective measurements (NRT/NRI, ESRT)
   
   
6. If age appropriate, the clinician will train the child to participate in programming (Conditioned Play Audiometry (CPA), loudness growth task.

Many of the decisions made during programming appointments come from the clinician's knowledge and experience, rather than the child's behavioral responses.

If your child continues to refuse to wear their processors after a remapping, take into consideration your audiologist’s experience and mapping approach and seek a second opinion.

When we sought out a second opinion with a new audiologist who specializes in pediatrics, she found our child’s map was overstimulating. Once she remapped our son's cochlear implants using a different approach, he didn't have a problem wearing his processors again.

More about the author

Eric Sherman is the inventor and founder of Ci Wear, the patented specialty shirt designed to secure and protect cochlear implant processors. Ideal for sports and water activities. No need for added accessories or clipping processors to collar. Shirts are manufactured in the USA and are available in youth and adult sizes at CIWear.com 

#cochlearimplants, #audiology, #parenting #mapping