User's Manual

SpinalModulation,Inc. PhysicianImplantManual
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44
AppendixC:ImplantableNeurostimulator
HowSupplied
The Axium™ Implantable Neurostimulator is provided sterile in a double tray assembly and is
intended for single use only.Do not resterilize or reuse, for any reason, because of risk of
infectiontothepatientandmalfunctionofthedevices.
PRECAUTION:DonotresterilizetheINSasitwillcreatearisk ofinfectionor malfunction
ofthedevi ce.
DeviceDescription
TheImplantableNeurostimulatorisafourchannelneurostimulatorthatisonlycompatiblewith
SpinalModulationImplantLeadsandLeadExtensions. Ithasfourportstoallowforstimulation 
of up to four leads simultaneously.It has an antenna in the header that allows wireless
communication with the device using the Spinal Modulation Clinical Programmer or Patient
Programmer.
PackageContents
(1)ImplantableNeurostimulator
(3)LeadPortPlugs
(1)TorqueWrench
(1)SterileMagnetSleeve
(1)MedicalAlertCard
(1)ReferencetoImplantManual
DeviceSpecifications
OutputoftheINSisequivalenttotheoutputoftheTNS.Thedeviceisprogrammedincurrent,
impedance is measured by the device, and the appropriate output voltage matches the
impedanceandcurrentprogrammed.
Specifications Range StepSize DefaultValue
PulseAmplitude‐PA(µA)
(Dependingonmeasuredimpedance)
0–6000µA 25µA:0‐2000µA
50µA:2000‐6000µA
0µA
MaximumPulseAmplitude‐Max(µA)
ProgrammablebyPatient
SameasPA SameasPA 0µA
PulseWidth–PW(µs) 40–720µs 10µs 40µs
PulseFrequency‐PF(Hz) 4–100Hz 2Hz 60Hz
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