510(k) · Cleared
Recalled · Class II · 2024Nalu Neurostimulation System
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Boston Scientific Neuromodulation · GZB Stimulator, Spinal-Cord, Implanted (Pain Relief)
Cleared on Mar 22, 2019 as substantially equivalent to K170141 (Stimwave Technologies Incorporated, 2017) after a 140-day review. Its family tree reaches back 6 generations to 1988. 6 later devices descend from it. It has been recalled once.
- Decided
- Mar 22, 2019
- Review
- 140 days
- Class
- Class II
- Product code
- GZB
- Recalls
- 1
- Predicates
- 1
Its longest line of descent runs back 6 generations to K883780 (1988). 8 ancestors in all. 6 later devices descend from it, 3 citing it directly.
- Root · 6 generations backK883780 Xtrel, Model Number 3425Medtronic Vascular · 1988
- 5 generations backK141399 Freedom Spinal Cord Stimulator (SCS) SystemStimwave Technologies Incorporated · 2014
- 4 generations backK150517 Freedom Spinal Cord Stimulator SystemStimwave Technologies Incorporated · 2015
- 3 generations backK160600 Freedom Spinal Cord Stimulator SystemStimwave Technologies Incorporated · 2016
- 2 generations backK162161 Receiver Kit, Trial Kit, Spare Lead Kit, Sterile Revision Kit…Stimwave Technologies Incorporated · 2016
- 1 generation backK170141 Receiver Kit, Trial Kit, Spare Lead Kit, Sterile Revision Kit…Stimwave Technologies Incorporated · 2017
- This deviceK183047 Nalu Neurostimulation SystemBoston Scientific Neuromodulation · 2019
- Descendant · cites it directly · 3 of its ownK201618 Nalu Neurostimulation SCS systemBoston Scientific Neuromodulation · 2020
- Descendant · 2 generations on · 2 of its ownK203547 Nalu Neurostimulation SystemBoston Scientific Neuromodulation · 2021
- Descendant · 3 generations on · 1 of its ownK221376 Nalu Neurostimulation SystemBoston Scientific Neuromodulation · 2022
- Descendant · 4 generations on · 0 of its ownK233801 Nalu Neurostimulation System for Spinal Cord Stimulation; Nalu…Boston Scientific Neuromodulation · 2024 · Recalled
- Descendant · cites it directly · 0 of its ownK202274 Nalu Neurostimulation Kit (lnte:gmted 40 em: Single 8/Dual 8), Nalu…Boston Scientific Neuromodulation · 2020
Showing 5 of 6 descendants. See all descendants
Descendants cleared per year
Most influential descendants
Showing 5 of 6 · See all- K201618Nalu Neurostimulation SCS systemBoston Scientific Neuromodulation · 2020 · cites it directly3descendants
- K203547Nalu Neurostimulation SystemBoston Scientific Neuromodulation · 2021 · 2 generations on2descendants
- K221376Nalu Neurostimulation SystemBoston Scientific Neuromodulation · 2022 · 3 generations on1descendant
- K233801Nalu Neurostimulation System for Spinal Cord Stimulation; Nalu Neurostimulation System…Boston Scientific Neuromodulation · 2024 · 4 generations on0descendants
- K202274Nalu Neurostimulation Kit (lnte:gmted 40 em: Single 8/Dual 8), Nalu Neurostimulation Kit…Boston Scientific Neuromodulation · 2020 · cites it directly0descendants
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −6 | K883780 | Xtrel, Model Number 3425 | Medtronic Vascular | 1988 | — |
| −5 | K141399 | Freedom Spinal Cord Stimulator (SCS) System | Stimwave Technologies Incorporated | 2014 | — |
| −4 | K150517 | Freedom Spinal Cord Stimulator System | Stimwave Technologies Incorporated | 2015 | — |
| −3 | K160600 | Freedom Spinal Cord Stimulator System | Stimwave Technologies Incorporated | 2016 | — |
| −2 | K162161 | Receiver Kit, Trial Kit, Spare Lead Kit, Sterile Revision Kit, Wearable… | Stimwave Technologies Incorporated | 2016 | — |
| −1 | K170141 | Receiver Kit, Trial Kit, Spare Lead Kit, Sterile Revision Kit, Wearable… | Stimwave Technologies Incorporated | 2017 | — |
| 0 (this device) | K183047 | Nalu Neurostimulation System | Boston Scientific Neuromodulation | 2019 | — |
| +1 | K201618 | Nalu Neurostimulation SCS system | Boston Scientific Neuromodulation | 2020 | — |
| +2 | K203547 | Nalu Neurostimulation System | Boston Scientific Neuromodulation | 2021 | — |
| +3 | K221376 | Nalu Neurostimulation System | Boston Scientific Neuromodulation | 2022 | — |
| +4 | K233801 | Nalu Neurostimulation System for Spinal Cord Stimulation; Nalu… | Boston Scientific Neuromodulation | 2024 | 1 |
| +1 | K202274 | Nalu Neurostimulation Kit (lnte:gmted 40 em: Single 8/Dual 8), Nalu… | Boston Scientific Neuromodulation | 2020 | — |
Other ancestors by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 1995 | 1 | 0 |
| 2001 | 1 | 0 |
Descendants by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 2019 | 1 | 0 |
| 2020 | 2 | 0 |
| 2021 | 1 | 0 |
| 2022 | 1 | 0 |
| 2024 | 1 | 0 |
Sources: FDA 510(k) database (decision fields), the FDA summary (predicates and indications), FDA recall and enforcement reports, and MAUDE; processed by 510(k) Report. Verify on FDA.gov · Methodology and accuracy.
Planning a device in GZB? A 510(k) Report weighs predicate choices, recall history and review times for a new device like this one.
Top candidate predicates for a new GZB device
- #1 K221376 Nalu Neurostimulation Systemscore 8.9 · 9 generations · no Class I recall
- #2 Held for the reportin the report
- #3 Held for the reportin the report
What was it cleared against? (1)
Devices the submitter claimed this one is substantially equivalent to (*), and reference devices cited for a specific test or feature (†), as written in the FDA summary.
| Type | Number | Device | Decided |
|---|---|---|---|
| * | K170141 | Receiver Kit, Trial Kit, Spare Lead Kit, Sterile Revision Kit, Wearable Antenna Assembly…Summary page 4…lanted (Pain Relief) Class: Class II Device Classification Panel: Neurology Legally Marketed Predicate Device(s) Freedom SCS System (K170141) by Stimwave Technologies, Inc. Hereafter, also referred to as the Stimwave Freedom SCS System. In addition, references are made… | 2017 |
| † | K141399 | Freedom Spinal Cord Stimulator (SCS) System | 2014 |
| † | K934065 | Medtronic Mattrix 3271/3272 Neurostimulation System | 1995 |
| † | K883780 | Xtrel, Model Number 3425 | 1988 |
| † | K000852 | Renew Neurostimulation System | 2001 |
What descends from it? (6)
3 later devices cite it directly; ranked here by how many devices descend from each in turn.
Has anything in its family been recalled? (0 Class I)
Recalls of this device
| Date | Class | Recall | Root cause | Reason |
|---|---|---|---|---|
| Jun 3, 2024 | Class II | Z-2257-2024 | Nonconforming Material/Component | Neurostimulation Systems have a manufacturing non-conformance that may reduce the efficiency of the radiofrequency signals between the Implantable Pulse Generator (IPG) and the Therapy Disc, causing the IPG to be non-functional, which… |
No ancestor or descendant has a Class I recall.
What does this lineage say?
- The line of descent spans 31 years and passes through 3 companies; a new generation was cleared every 1.2 years on median.
- None of the 8 ancestors has a recall.
- Of its descendants, K201618 (Boston Scientific Neuromodulation, 2020) has gone furthest, with 3 descendants of its own.
- 2 other devices also cite its predicate K170141.
How does its category compare?
All GZB devicesGZB Stimulator, Spinal-Cord, Implanted (Pain Relief): FDA decisions, review times, recalls and adverse event reports over 20 years. 2019, this device’s year, is highlighted.
FDA decisions per year · GZB
1in 2024
2026 to Oct 25, outlined.
Median 510(k) review, days · GZB
149in 2019
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · GZB
1in 2010
Class I (0 since 2007) Class II/III not classified
Adverse event reports per year · GZB
313in 2025
MAUDE reports naming product code GZB, not matched to any one device; reports are not rates.
View these four charts as a table
| Year | Decisions | Median 510(k) review, days | Recalls (Class I) | MAUDE reports |
|---|---|---|---|---|
| 2007 | 2 | — | 0 | 201 |
| 2008 | 1 | — | 1 | 68 |
| 2009 | 3 | 62 | 0 | 59 |
| 2010 | 1 | — | 1 | 157 |
| 2011 | 4 | 67 | 0 | 471 |
| 2012 | 2 | — | 0 | 1,090 |
| 2013 | 2 | — | 0 | 4,428 |
| 2014 | 2 | — | 0 | 10,849 |
| 2015 | 2 | — | 0 | 7,507 |
| 2016 | 2 | — | 0 | 4,556 |
| 2017 | 2 | — | 0 | 5,511 |
| 2018 | 1 | — | 0 | 5,244 |
| 2019 | 4 | 149 | 0 | 643 |
| 2020 | 2 | — | 0 | 466 |
| 2021 | 1 | — | 0 | 332 |
| 2022 | 1 | — | 0 | 209 |
| 2023 | 0 | — | 0 | 236 |
| 2024 | 1 | — | 0 | 318 |
| 2025 | 0 | — | 0 | 313 |
| 2026 | 0 | — | 1 | — |
What is it indicated for?
The Nalu Neurostimulation System is indicated as the sole mitigating agent or as an adjunct to other modes of therapy used in a multidisciplinary approach for chronic, intractable pain of the trunk and/or limbs, including unilateral or bilateral pain.
The trial devices are solely used for trial stimulation (no longer thank 30 days) to determine efficacy before recommendation for a permanent (long term) device.
Indications for use as stated in the FDA summary.
https://510kreport.com/device/K183047 · printed Nov 6, 2026
Cite this page
510(k) Report. “K183047: Nalu Neurostimulation System.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K183047
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Record history
- FDA decision record loaded May 2, 2026
- Summary read Oct 13, 2026 (extraction version 9eaa42aa01ed)
- Lineage and recalls computed Nov 3, 2026
- Page last updated Nov 3, 2026