Use Instructions

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APPENDIX IV
Wireless Technology
RF wireless technology is used in the communication between an OPTIMIZER SMART MINI
Implantable Pulse Generator (IPG) and an INTELIO Programmer. It occurs through an encrypted
channel over an RF link that complies with the requirements of the Medical Implant
Communication System (MICS) (range specified to 2 m, 402–405 MHz) of the MedRadio Band.
The “OPTIlink” encrypted MICS channel is established after the IPG is positively identified and
encryption keys are exchanged via a very-short-range (<4 cm) communication over the
13.56 MHz recharge channel.
RF wireless technology is also used to transcutaneously transmit energy from the VESTA
Charger to recharge the OPTIMIZER SMART MINI IPG at the 13.56 MHz ISM frequency. The
transmission range is specified at a maximum of 4 cm between the Charger’s coil and the IPG’s
receiving coil. Control over the recharge process, as well as the communications of alert
messages from the IPG to the Charger take place over an encrypted MICS channel.
OPTIMIZER Smart Mini IPG Wireless Nominal Specifications
Characteristic
Nominal
OPTIlink MICS MedRadio
Frequency Band
402 – 405 MHz Medical Implant
Communication Service (MICS)
Medical Device Radio
Communication Service (MedRadio)
Bandwidth
< 145 kHz
Modulation
FSK
Radiated Power
< 25 µW E.I.R.P.
Range
0 to at least 1.5 m
Quality of Service (QoS) for Wireless Technology
QoS for Communications between the Intelio Programmer and the
OPTIMIZER Smart Mini IPG
MedRadio in the MICS sub-band (402 to 405 MHz) wireless technology enables
communication between the OPTIMIZER Smart Mini IPG and the INTELIO
Programmer.
Before the Intelio Programmer can be used to program the OPTIMIZER Smart
Mini IPG, an OPTIlink communication session must first be established between
the Intelio Programmer and the IPG. This is accomplished by means of the Intelio
Programming Wand, which must be placed over the implant site and within 4 cm
of the IPG. Once the Intelio Programming Wand is over the patient’s implant site,
the communication link is established by initiating the Start OPTIlink command.
Encryption keys are exchanged through a proprietary process using the
13.56 MHz Recharge Channel, after which the Intelio Programming Wand can be
placed at a distance of up to 1.5 m away from the implant site, with
communications taking place over MedRadio.
The OPTIlink Signal Strength Indicator dynamically displays the Quality of
Service (QoS) for the link between the Intelio Programming Wand and the
OPTIMIZER Smart Mini IPG. Depending on the quality of the link, the curved
“waves” of the Signal Strength Indicator are displayed in the following manner: