Devices

FDA-approved 10 kHz spinal cord stimulation system with a 16-channel rechargeable IPG, approved October 2022. Values rest on the FDA supplement record and Nevro's prescriber information; the SSED and clinical data were not read.

Catalog specification sheet - Other

Nevro Senza HFX iQ SCS

Record ID
BTSD-FDA-0006
Reviewed
2026-10-08
Interface
scs
Evidence stage
human

Independent, source-linked catalog sheet. Not a manufacturer-issued datasheet, regulatory decision or instructions for clinical use. Human evidence does not establish approval. Source-specific restrictions, conflicts and missing specifications are retained below.

Nevro Senza HFX iQ SCS

Senza HFX iQ is Nevro’s current spinal cord stimulation system, approved by PMA supplement S044 on October 12, 2022. Its IPG has 16 output channels and can deliver 10 kHz therapy. This sheet is thinly sourced from the FDA record and Nevro’s prescriber information; unknown cells stay Unreported.

Identity

FieldValue and source scope
DeviceNevro Senza HFX iQ System: HFX iQ IPG (IPG3000), HFX Trial Stimulator (TSM3500), HFX iQ Remote (PTR3000) and HFX iQ Patient Application [1]
ManufacturerNevro Corp. [2]
Interface classRechargeable implantable pulse generator for spinal cord stimulation with two lead ports [2]
OriginCommercial FDA-approved device within PMA P130022 [1]
First demonstratedUnreported
First human implantUnreported
Species studiedUnreported
Regulatory statusPMA P130022/S044, received March 2, 2022, decision October 12, 2022: approval of the new Senza HFX iQ IPG system [1]
FunctionDelivers 10 kHz therapy that does not produce paresthesia, and can also provide paresthesia-producing stimulation at lower settings [2]
Target tissueSpinal cord, via leads placed near the spine [2]

Geometry and architecture

FieldValue and source scope
Interface typeTwo lead ports on the IPG header; compatible Nevro and competitor leads are listed in the prescriber information, not extracted here [2]
Array layoutUnreported
Electrode count16 output channels on the IPG; contacts per lead not extracted here [2]
PitchUnreported
Electrode lengthsUnreported
Shank width and thicknessUnreported
Tip and exposed site geometryUnreported
Contact coatingUnreported
InsulationUnreported
Insertion methodUnreported
Anchoring and fixationUnreported

Electrode and channel physics

FieldValue and source scope
Exposed site areaUnreported
Electrode materialUnreported
Impedance (with measurement frequency)Unreported
Noise floor or SNRUnreported
Recording modalityUnreported
Sampling rateUnreported
Stimulation capabilityCurrent-regulated, charge-balanced, biphasic, capacitively coupled rectangular pulses; 10 kHz capable [2]
Charge injection limitUnreported
Reference and groundUnreported

Tissue interface and bioresponse

FieldValue and source scope
Target tissueUnreported
Insertion trauma and BBB disruptionUnreported
Vascular disruption riskUnreported
Micromotion sensitivityUnreported
Gliosis and encapsulationUnreported
Neuron loss near sitesUnreported
Foreign-body response mitigationUnreported
Typical failure modesUnreported

System architecture

FieldValue and source scope
Onboard electronicsTitanium IPG with a hermetically sealed rechargeable battery and charging coil in the header; Bluetooth enabled; Gaea Cryptofunction software for cybersecurity features [1][2]
Data pathBluetooth to the patient remote and application; clinician programmer software configures trial stimulators and IPGs [1][2]
Telemetry bandwidthUnreported
Sampling rateUnreported
PowerRechargeable IPG with a charger; the trial stimulator uses 2 AAA batteries [2]
Thermal managementUnreported
Packaging and hermeticityHermetic titanium enclosure around a hermetically sealed battery housing [2]
MRI compatibilityMR Conditional; Nevro MRI Guidelines (P/N 10001162) give the conditions. The charger, trial stimulator and remote are not MRI safe [2]
Surgical complexityUnreported
Output connectorsUnreported

Performance envelope

FieldValue and source scope
Acute yieldUnreported
Chronic yieldUnreported
Stability over timeUnreported
LongevityUnreported
Revision and explant experienceUnreported
Adverse eventsUnreported
Notable demonstrationsUnreported

Clinical and preclinical evidence

FieldValue and source scope
Human subjectsUnreported
Preclinical cohortUnreported
Follow-up durationUnreported
IndicationsUnreported
Trials and registriesUnreported
Primary outcomesUnreported
Key limitationsThe FDA record read is a supplement for the new IPG system; pivotal 10 kHz clinical data and SSED were not read. Lead dimensions, battery life and channel mapping are Unreported here [1][2]

Engineering tradeoffs

FieldValue and source scope
StrengthsUnreported
LimitationsUnreported
Scaling constraintsUnreported

Version boundary

The sheet covers the HFX iQ IPG (IPG3000) and its trial and patient components as named in S044. Earlier Senza IPGs in P130022 and the 10 kHz pivotal trial are not described.

References

  1. FDA PMA P130022/S044 record.
  2. Nevro information for prescribers, Senza HFX iQ and HFX Trial System.