Introduction
ienjoy sound is a type of cochlear implant used to transmit sound to the brain. ienjoy sound is utilized cllinically in treating deaf persons and helping them to communicate freely.
ienjoy sound consists of components that function in a manner similar to the human auditory system. The external hardware includes the Sound Processing Unit (SPU) and power supply. The surgically implanted device is the internal Receiving Unit (IRU).
The SPU has directional microphone to receive sound, a processor to transform sound to electrical signals, and a transmitter to send the output of the processor through the skin. The Internal Receiving Unit below the skin is composed of a receiver coil and electrodes to transmit the sound signal to the human auditory system.
Sound Processing Unit (SPU)
The SPU is the external portion of the cochlear implant system that collects sound through the microphone port, encodes sound signals, and transmits the signal to the IRU. The SPU is worn behind the ear. Power is supplied by the Battery Pack. The Battery Pack is connected with the Necklace Type Cable. Keep the SPU clean by using a soft, clean and dry cloth to remove any moisture. Keep the SPU away from any electronic device that may interfere with the sound processor.
Rechargeable Battery
The Battery Pack is the power source for the SPU. The Battery Pack is connected to the SPU with a Straight or Necklace Type Cable. The hook on the Cable prevents the Cable and the Battery Pack from disjointing accidently. The Battery Pack Charger is designed to be used with 100V~200V. It is to be used only with the Battery Pack offered by MST.
Cable
The SPU and Battery Pack are attached via the Straight or Necklace Type Cable. To attach the Cable to the Battery Pack:
1. Align the USB Port of the Battery Pack to the USB Plug of the Cable by aligning the logo with the Battery Pack Light Indicator.
2. Insert the Cable to the Battery Pack by gently pushing the two together until securely fastened.
Monitoring Box (Optional)
The Monitoring Box is a device for the guardian and clinician. The Monitoring Box with the ear-phones or headset allows the guardian or clinician to check if the ies is working properly.
The magnet on the Monitoring Box allows the SPU to connect and power is supplied via the SPU’s coil from the connected Battery Pack. Once the Monitoring Box and the SPU are connected, the LED Light should turn on. By connecting the Monitoring Box with ear-phones, the guardian or clinician will be able to listen to the sound but will not be able to measure the quality of the sound output from the SPU.
Technical Specifications
Sound Processing Unit
SPU Microphone : Frequency Range 150 Hz–8000 Hz
Input Dynamic Range : 93 dB
Audio Sound Digitization : 20 bit, 96 dB
Audio Sampling Rate : 16 kHz
Automatic Gain Control : Variable Time constants, Thresholds
Spectral bands : 4 band WDRC / 8 ch. Equalizer /128 band noise reduction
Supported Strategies : Full Spectrum Central Stimulation
Stimulation Rate : 1,500 ~ 40,000 pps
Volume Control : 0 ~ 42dB
Auxiliary Input : Audio Line in
Operating Temperature Range: 0° to 45°C / 32° to 113°F
Storage Temperature Range: -20° to 55°C / -4° to 131°F
Battery Pack Compatibility
ies B270 |
