| Stimulation Parameters | |
| Output current | 0-3 mA in 100 μA steps |
| Pulse frequency | 1, 2, 5, 10, 15, 20, 25, 30 Hz |
| Pulse width | 130, 250, 500, 750, 1000 μsec |
| Stimulus ON time | 7, 14, 21, 30, 60 sec |
| Stimulus OFF time |
0.2, 0.3, 0.5, 0.8, 1.1, 1.8, 3 min, and 5 to 180 min (5 to 60 in 5-min steps; 60 to 180 in 30-min steps) |
| Stimulus regimen |
«Standard», «Strong», «Off», selected with the Pebble. Programmed by the physician. |
| Patient information feedback | System OK indication. Stimulation regimen. |
|
Standard stimulus parameters |
500 μA; 1 Hz; 130 μsec; ON time, 30 sec; OFF time, 90 min |
| Strong stimulus parameters |
1500 μA; 30 Hz; 500 μsec; ON time, 10 sec; OFF time, 5 min; release time, 5 min. |
| Telemetry | |
| Type | MICS 403.5 MHz – RFID 13.56 MHz |
| Device Database |
Implant date, model number and serial number |
|
Device Diagnostic and History Report |
Battery level and charging status, device testing results, impedance history and battery history |
|
Device parameter programming |
View and upload stimulation parameters (amplitude,frequency,pulse width, ON/OFF time….) standard and strong parameters. |
| Physiological measurements | Electrode loop impedance, Action potential detection |
| Power Source | |
| Battery | Wilson Greatbatch Ltd., Model R10499 |
| Chemistry | Secondary cell – Lithium-Ion |
| Capacity | 35 mAh |
| Charging | EM coupling – Spiral set of antenna – 13.56 MHz |
| OCV (open circuit voltage) | 4.1 Volts |
| Rated Average Load Voltage | 3.8 Volts |
| Operating Temperature | 37°C |
| Rated Number of Cycles | >1000 |
|
Self-discharge rate (S.O.C.= State of Charge) |
20% @100% S.O.C – 5% @10% S.O.C. per month |
| Capacity retention | 58% after 12 years @ 6 cycles/year |
| Lifetime | ≥ 12 years |
| Materials | |
| Case | Titanium, hermetically sealed |
| Header | Silicone rubber |
| Lead connector contacts | 316LVM Stainless steel |
| Measurements | |
| Dimensions | 45 mm x 32 mm x 8 mm |
| Weight | 20 grams |
| Lead connector | |
| Type | Circular 5-7 contacts |
| External Diameter | 5.4 mm |
| Material | 316LVM Stainless steel – Titanium – Silicone |
| Electrical contact material | 316LVM Stainless steel |
| Retention Strength | >10N |
| Locking/unlocking | Auto-lock system |
| Polarisation | Shaft slot |
| Lead | |
| Diameter | 2mm |
| Insulation | Teflon coating – Upper layer in silicone |
| Conductor coil construction | Helical 4 wires |
| Wires material | Multistrand 7×0.02 – 316LVM |
| Overall length | 43 cm |
| Lead resistance | 290 Ohms |
| Electrode | |
| Type | Self-sizing cuff |
| Material | Silicone sheeting |
| Contact material | Platinum |
| Contact pattern |
Stimulation: 2 contacts – 3.5 mm inter-electrode distance Detection: longitudinal tripole |
| Inner diameter | Self-sizing 2 to 3 mm |