510(k) Report

510(k) · Cleared

Cleared

Neuromonitoring Kit

K161893510(k) TraditionalCleared Oct 18, 201699-day reviewClass II21 CFR 874.1820

Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly, last Nov 3, 2026

SI-BONE, Inc. · PDQ Neurosurgical Nerve Locator

Cleared on Oct 18, 2016 as substantially equivalent to K072736 (Rhythmlink International, LLC, 2008) after a 99-day review. Its family tree reaches back 5 generations to 1998.

Decided
Oct 18, 2016
Review
99 days
Class
Class II
Product code
PDQ
Recalls
None
Predicates
1

Its longest line of descent runs back 5 generations to K980148 (1998). No later device cites it as a predicate yet.

  1. Root · 5 generations backK980148 Neurosign 800, 8 Channel Motor Nerve MonitorThe Magstim Company, Ltd. · 1998
  2. 4 generations backK992869 Xomed Ball-Tip Monopolar Stimulator ProbeXomed, Inc. · 1999
  3. 3 generations backK014165 Stimulus - Dissection InstrumentsMedtronic Xomed, Inc. · 2002
  4. 2 generations backK031003 Stimulus/Dissection Instruments, Ball-Tip ProbesMedtronic Xomed, Inc. · 2003 · Recalled
  5. 1 generation backK072736 Rhythmlink International Monopolar Stimulating InstrumentRhythmlink International, LLC · 2008 · Recalled
  6. This deviceK161893 Neuromonitoring KitSI-BONE, Inc. · 2016
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
−5K980148Neurosign 800, 8 Channel Motor Nerve MonitorThe Magstim Company, Ltd.1998—
−4K992869Xomed Ball-Tip Monopolar Stimulator ProbeXomed, Inc.1999—
−3K014165Stimulus - Dissection InstrumentsMedtronic Xomed, Inc.2002—
−2K031003Stimulus/Dissection Instruments, Ball-Tip ProbesMedtronic Xomed, Inc.20031
−1K072736Rhythmlink International Monopolar Stimulating InstrumentRhythmlink International, LLC20081
0 (this device)K161893Neuromonitoring KitSI-BONE, Inc.2016—
FIG. 1 — Lineage of K161893, 1998–2016Source: FDA 510(k) summaries, read by 510(k) Report · How lineage is built

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Notable FDA decisions, review times and new Class I recalls. See an issue.

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 PDQ? 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 PDQ device

  1. #1 K243636 Neuralytix iD3 System (NTX-9001)score 16.5 · 14 generations · no Class I recall
  2. #2 Held for the reportin the report
  3. #3 Held for the reportin the report
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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.

TypeNumberDeviceApplicantDecidedRecalls
*K072736Rhythmlink International Monopolar Stimulating Instrument
Summary page 4
…tor (21 CFR 874.1820) Regulatory Class: II Product Code: PDQ III. PREDICATE DEVICE Rhythmlink International Monopolar Stimulating Instrument (K072736). No reference devices were used in this submission. IV. DEVICE DESCRIPTION The Neuromonitoring Kit is designed to use stimulat…
Rhythmlink International, LLC20081

Also cleared against K072736: 1 other device →

What descends from it?

No later submission names this one as a predicate yet.

Has anything in its family been recalled? (0 Class I)

No FDA recall names this device.

No ancestor or descendant has a Class I recall.

What does this lineage say?

  • The line of descent spans 18 years and passes through 5 companies; a new generation was cleared every 2.3 years on median.
  • 2 of the 5 ancestors have a recall of any class.
  • 1 other device also cites its predicate K072736.

How does its category compare?

All PDQ devices

PDQ Neurosurgical Nerve Locator: FDA decisions, review times, recalls and adverse event reports over 20 years. 2016, this device’s year, is highlighted.

FDA decisions per year · PDQ

1in 2025

2013: 52014: 72015: 32016: 32017: 22018: 42019: 42021: 22022: 22023: 12025: 12026 (partial year): 2
2007high 7 (2014) · low 0 (2007)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · PDQ

182in 2019

2013: 181 days median2014: 254 days median2015: 95 days median2016: 100 days median2018: 162 days median2019: 182 days median
2007high 254 (2014) · low 95 (2015)2026

Receipt to decision; years with fewer than 3 clearances left blank.

Recalls per year · PDQ

No recall names PDQ since 2007.

Adverse event reports per year · PDQ

2in 2025

2013: 12015: 12016: 42017: 52018: 52019: 102020: 92021: 102022: 162023: 92024: 42025: 2
2007high 16 (2022) · low 0 (2007)2025

MAUDE reports naming product code PDQ, not matched to any one device; reports are not rates.

View these four charts as a table
YearDecisionsMedian 510(k) review, daysRecalls (Class I)MAUDE reports
20070—00
20080—00
20090—00
20100—00
20110—00
20120—00
2013518101
2014725400
201539501
2016310004
20172—05
2018416205
20194182010
20200—09
20212—010
20222—016
20231—09
20240—04
20251—02
20262—0—

What is it indicated for?

The Neuromonitoring Kit is indicated for stimulation of peripheral motor nerves, including spinal nerve roots, for localization and identification during surgery.

Indications for use as stated in the FDA summary.

Cite this page

510(k) Report. “K161893: Neuromonitoring Kit.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K161893

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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