Description; Charging Method - Impulse Dynamics OPTIMIZER Lite System Patient Manual

7.3

Description

Your Vesta Charger is designed to charge the battery of your
OPTIMIZER Lite IPG with minimal intervention while ensuring
your safety during the charging process.
In addition, your Vesta Charger is programmed to display alerts
and other messages that may require action on your part (e.g.,
Call Doctor Alert Codes that require you to call the 24-hour
Support Hotline, reminders to charge your implanted device, etc.).
Caution: The operation of other electrical devices in the vicinity of
your Vesta Charger may potentially cause electromagnetic or
other interference with the charger. Portable and mobile Radio
Frequency (RF) equipment are especially prone to impair the
normal function of the charger.
Caution: When in operation, your Vesta Charger System may be
a potential source of electromagnetic interference for other
electronic equipment in close proximity to the charger system.
7.4

Charging Method

The charging method utilized by your Vesta Charger to charge the
battery of your OPTIMIZER Lite IPG is called inductive energy
transfer. Since magnetic fields can easily pass through the skin
with little to no resistance, the charging method used by your
Vesta Charger is a proven and effective way to transfer energy to
your implanted device. Charging may be performed over clothing.
The manner in which inductive energy transfer is used to charge
the battery of your OPTIMIZER Lite IPG is as follows:
1. The electronic circuitry of your Vesta Charger takes the
electrical energy from its battery and converts it into an
oscillating electromagnetic field in a primary coil of the
charging wand.
2. When the charging wand is placed in close proximity to
the implant site, the oscillating electromagnetic field
generated by its primary coil is picked up by the
secondary coil of the implanted device.
3. The oscillating electromagnetic field picked up by the
secondary coil is converted back into electrical energy by
the electronic circuitry of the implanted device and used to
charge its rechargeable battery.
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