Hugh Hetherington Hearing Aid Museum
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Click on the "General Information" button (top button above) for an overview and general information on this category of hearing aid.

 

Cochlear Implants

Nucleus ESPrit 3G Cochlear Implant Speech Processor

The Nucleus ESPrit 3G cochlear implant speech processor was made by Cochlear Ltd. of Australia. It was approved by the FDA for use in the USA in 2001.

The external parts consisted of the circular transmitting coil (bottom) and the behind-the-ear (BTE) speech processor (top).

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View of a picture of the internal implant. The curved electrodes (left) are threaded into the cochlea. The wire to the right of the electrodes is the ground wire that is implanted outside the cochlea.

The large part (right) is implanted in a hollowed out part of the mastoid bone just under the skin behind the outer ear.

The magnet in the center of the circle mated with the magnet in the center of the headpiece coil (see below) to hold the external coil tightly to the head so signal transfer could take place.

 

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View of the right side of the Nucleus ESPrit 3G cochlear implant speech processor showing the underside of the transmitting coil—the side that goes against your head.

The BTE speech processor and coil weighed 0.6 oz. (16 g) with batteries.

The BTE speech processor measured 2 1/16" x ¾" x 9/16" (5.2 x 1.9 x 1.4 cm).

The cable joining the coil to the speech processor was about 2⅝" (6.7 cm).
 

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Close-up view of the back of the transmitting coil of the Nucleus ESPrit 3G cochlear implant speech processor.

The magnet cover (center) pulled off to change the magnet(s) inside. It could be replaced by a cover of a different color.

The transmitting coils were specific to the cochlear implant you had. Thus, there were different coils for the Nucleus 22 implant and the Nucleus 24 implant.

 

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Close-up view of the front (bottom) of the transmitting coil of the Nucleus ESPrit 3G cochlear implant speech processor.

If you had a Nucleus 22 cochlear implant, you needed to use a transmitting coil marked N22. It had a green-tipped plug.

Shown here is the transmitting coil for the Nucleus 24 implant. It is marked "E3G" (right of center). As you'll see below later, the plug is yellow.

 

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View of the front cover of the transmitting coil with a 2¾" cable attached. There were different lengths of coil cables of the Nucleus ESPrit 3G cochlear implant speech processor depending exactly where you implant was located.

There were 5 lengths for the transmitting coil cable—2¾", 3½", 4½", 8¼" and 11⅜" (6, 8, 10, 20 and 28 cm).

 

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View of the front cover of the transmitting coil with a 3½" cable attached.

The cables did not unplug from the transmitting coil so you needed to get a new coil-cable assembly if you needed a different length of cable.
 

 

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View of the front cover of the Nucleus ESPrit 3G cochlear implant speech processor manual. Read this Manual here.

Here is the illustrated list of Accessories for the Nucleus ESPrit 3G cochlear implant speech processor.

Here's the Warnings and Precautions instructions.

Here's the Patient Identification Card.

Here's information on Static Electricity and Cochlear Implants.

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Close-up view of the right side of the upper part of the Nucleus ESPrit 3G cochlear implant speech processor showing the the rear microphone port (hole at the top). The hole went right through so sounds could enter no matter whether you wore the speech processor on the left or right ear.

 

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Close-up view of the upper front of the  Nucleus ESPrit 3G cochlear implant speech processor showing the microphone port at the top of the ear hook.

This microphone was directional so you got the best reception if you faced the direction of the sounds you wanted to hear.

 

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View of the back of the Nucleus ESPrit 3G cochlear implant speech processor showing the 1-7 control (left) which could be programmed to either be a volume control or a microphone sensitivity control. The 3-position switch on the right is the "O" off, "P1" program 1 and "P2" program 2 switch.

Below is the label showing the model (ESPrit 3G)

 

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Close-up view of the bottom of the Nucleus ESPrit 3G cochlear implant speech processor showing the accessories input jack (left) and the 3-position mode switch (right). The modes are (from left to right) "T" t-coil, "W" whisper and "M" microphone.

The Whisper setting, as you might expect, makes soft sounds audible.

 

 

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Close-up view of the socket covers that fit into the socket on the bottom of the Nucleus ESPrit 3G cochlear implant speech processor when no auxiliary cord is plugged in.

 

 

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View of the left side of the Nucleus ESPrit 3G cochlear implant speech processor showing the battery compartment cover half pulled off.

The battery compartment cover just pulled off. There were no hidden latches to release.

 

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View of the left side of the Nucleus ESPrit 3G cochlear implant speech processor with the battery compartment cover pulled off revealing the battery compartment.

 

 

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View of the right side of the Nucleus ESPrit 3G cochlear implant speech processor with the battery compartment cover removed showing the transmitting coil cable plugged into the speech processor.

 

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View of the right side of the Nucleus ESPrit 3G cochlear implant speech processor with the battery compartment cover removed showing the 4-pin transmitting coil cable unplugged from the speech processor.

Note: the plug and socket must match colors. Yellow indicates that this speech processor and transmitting coil are specifically designed for the Nucleus 24 cochlear implant.
 

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View of the right side of the Nucleus ESPrit 3G cochlear implant speech processor with the battery compartment cover removed showing the ear hook removed.

This was an unusual way of attaching ear hooks. Typically they were screwed into a post at the top, not help in place by a wire.

 

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Front view of the Nucleus ESPrit 3G cochlear implant speech processor with the battery compartment cover removed showing the ear hook/wire (left) and the groove in the processor (right) where it fits into place.

Note: the ear hook could be gently bent to fit your ear.

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Front view of the Nucleus ESPrit 3G cochlear implant speech processor with the battery compartment cover removed showing how the ear hook wire fits into the groove in the front.

 

 

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Close-up view of the left side of the Nucleus ESPrit 3G cochlear implant speech processor battery compartment with the battery cover removed showing the serial number (101001203135C) below the batteries.


 

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View of the left side of the Nucleus ESPrit 3G cochlear implant speech processor with the battery compartment cover removed showing the 3 675 batteries there.

This speech processor used high-power No. 675 zinc-air batteries such as the PowerOne No. p675 zinc-air battery.

In cold weather or in humid conditions, you could use S76 silver oxide batteries.

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View of the right side of the Nucleus ESPrit 3G cochlear implant speech processor with the battery compartment cover and batteries removed. The batteries could only be inserted/removed from the right side. The batteries could only go in one way—with the negative side down.

 

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The Nucleus ESPrit 3G cochlear implant speech processor came with a number of different cables and adapters for connecting to various audio devices.

In order to attach anything to the speech processor, you first had to plug the accessories adapter (left) into the 6-pin socket (jack) on the bottom of the speech processor.

The accessories adapter had to jacks on it. A 3-pin jack on the left end (not visible) for plugging in audio accessories, and a 4-pin jack on the side for plugging in monitoring earphones.

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View of the bottom of the Nucleus ESPrit 3G cochlear implant speech processor showing the accessories adapter plugged into the speech processor and the accessory adapter cable plugged into the end of the adapter.

 

 

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The L-shaped plug of the accessory adapter cable (left) of the Nucleus ESPrit 3G cochlear implant speech processor plugged into the L-shaped 3-pin jack on the end of the accessories adapter.

Other cables that were designed to plug into the accessories adapter included an external microphone, an external t-coil and a special FM cable.

 

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The accessory adapter cable of the Nucleus ESPrit 3G cochlear implant speech processor was 16" (40.6 cm) long. One end plugged into the accessories adapter and the other end terminated in a female stereo audio jack.

This female jack accepted any

 

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Close-up view of the female end of the accessory adapter cable (left) of the Nucleus ESPrit 3G cochlear implant speech processor showing how any standard stereo ⅛" (3.5 mm) audio cable could plug into it. In this case it is the personal audio cable. It could also be the TV/Hi-Fi cable plug. (Both shown below.)

 

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The Nucleus ESPrit 3G cochlear implant speech processor came with a number of different cables and adapters for connecting to various audio devices.

Shown here is the personal audio cable shown in its original package.

 

 

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The personal audio cable for the Nucleus ESPrit 3G cochlear implant speech processor was used to listen to any battery-operated audio device such as an MP3 player, etc.

This stereo audio cable was 23" (58.4 cm) long.

 

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The TV/Hi-Fi stereo audio cable for the Nucleus ESPrit 3G cochlear implant speech processor was used to listen to any audio device that plugged into a wall outlet such as a TV, stereo, computer, etc.

Note that this cable had an isolation transformer (square box at the top) to protect the delicate electronics of the speech processor from any transient spikes in the power. It also had a volume control (center).

The isolation transformer was 19" (48.2 cm) from the plug that you plugged into the audio device. The volume control was 31" (78.7 cm) from your end.

This TV/Hi-Fi audio cable was 18 feet (5.48 m) long.

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The Nucleus ESPrit 3G cochlear implant speech processor came with a dozen different colors of battery compartment covers if you wanted to draw attention to your cochlear implant and liven things up.

 

 

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Shown are 11 of the 12 Nucleus ESPrit 3G cochlear implant speech processor battery compartment covers.

Note: the speech processor itself only came in 4 colors—beige, brown, black and silver. The transmitting coil also only came in 4 colors—beige, brown, black and grey.

 

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The Nucleus ESPrit 3G cochlear implant speech processor also came with a dozen different colors of magnet covers if you wanted to draw attention to your cochlear implant and liven things up.

 

 

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The 12 variously-colored magnet covers for the Nucleus ESPrit 3G cochlear implant speech processor. You could match them to the battery compartment covers or not as you wished.

The magnet covers just pulled off and the new one slid onto the two pins that held them in place.

 

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Close-up view of the bottom of a magnet cover for the Nucleus ESPrit 3G cochlear implant speech processor showing the two holes for the pins on the processor to slide into.

 

 

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One of the accessories for the Nucleus ESPrit 3G cochlear implant speech processor was a soft plastic jacket. There were 5 jackets in the package.

 

 

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View of the soft plastic Jacket to keep moisture out of the Nucleus ESPrit 3G cochlear implant speech processor. Here are the instructions on how to use the jacket properly.

 

 

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View of the Nucleus ESPrit 3G cochlear implant speech processor with the soft plastic jacket on.
 

 

 

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The Nucleus ESPrit 3G cochlear implant speech processor came with a spare ear hook for an ear mold shown here in its package.

 

 

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Close-up view of the ear mold ear hook for the Nucleus ESPrit 3G cochlear implant speech processor.

If you had trouble making the speech processor stay on your ear, you could use this ear hook instead of the "normal" one. This ear hook terminated with a plastic piece (instead of a metal ball) that was the correct size so the tubing of a custom-fitted ear mold would snuggly fit over it.

 

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The Nucleus ESPrit 3G cochlear implant speech processor came with a set of 4 magnets shown here in their original package.

 

 

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The Nucleus ESPrit 3G cochlear implant speech processor came with a set of 4 spacers to use in the magnet cover if you only used one magnet to keep the magnet firmly at the bottom of the magnet housing. They are shown here in their original package.

 

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The Nucleus ESPrit 3G cochlear implant speech processor came with a screwdriver and a package of small screws shown here in their original package.

 

 

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The Nucleus ESPrit 3G cochlear implant speech processor came with a spare soft ear hook cover shown here in its package.

 

 

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Close-up view of the soft ear hook cover for the Nucleus ESPrit 3G cochlear implant speech processor.  The soft ear hook cover fit over the wire ear hook so it didn't bother your ear.

 

 

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The Nucleus ESPrit 3G cochlear implant speech processor came with a sweatband to help keep moisture from running into the speech processor when you were working out or doing other strenuous work.

It also doubled as a protector to keep the speech processor from falling off if you were doing action activities.

 

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Side view of the signal checker for the Nucleus ESPrit 3G cochlear implant speech processor. 

 

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Close-up view of the top of the signal checker for the Nucleus ESPrit 3G cochlear implant speech processor. You held the signal checker against the transmitting coil. The LED in the center of the signal checker glowed with varying intensity in response to incoming sounds. 

 

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View of the Nucleus Signal Checker in its original packaging.

This Nucleus ESPrit 3G cochlear implant speech processor and accessories was donated to the Museum on behalf of  Charles Kelling, Blue Anchor, NJ.


 


 

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View of the containers of desiccant that came with the Nucleus ESPrit 3G cochlear implant speech processor. Two containers came in a package for use when the speech processor was in its carrying case.


 

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The Nucleus ESPrit 3G cochlear implant speech processor fit into a rubber holder that then slid into its aluminum carrying case.

The round item on the left center is the container of desiccant used to suck any moisture out of the speech processor while it was safely stored for the night.

 

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The Nucleus ESPrit 3G cochlear implant speech processor in its aluminum carrying case.


 


 

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Front view of the aluminum carrying case for the Nucleus ESPrit 3G cochlear implant speech processor.


 


 

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Top view of the box the Nucleus ESPrit 3G cochlear implant speech processor and accessories came in.

This Nucleus ESPrit 3G cochlear implant speech processor and accessories was donated to the Museum on behalf of  Charles Kelling, Blue Anchor, NJ.
 



 

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