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Recall Observatory FDA recall evidence

Exact FDA event identifier

Event 72763

1 recalled-product record grouped only because every row carries this exact official event ID.

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Event summary

Timeline bucket
November 11, 2015
Product types
Device
Classifications
Class II
Statuses
Terminated
Recalling firm wording
Natus Neurology DBA Excel Tech., Ltd. (XLTEK)

Dossier provenance

Source snapshots represented here

  • openFDA Device Enforcement Report-date coverage June 20, 2012–July 08, 2026 Known gap: openFDA describes 2004-present coverage, but the current export has no report-date records in this interval.
  • openFDA Device Recall event_date_initiated coverage June 01, 1997–June 30, 2026

Enforcement coverage uses report dates; product initiation dates can precede those bounds. Device-enrichment coverage uses FDA event_date_initiated.

How coverage and grouping work

Complete imported group

Every recalled product in this event

1 official enforcement rows

Product dates, classifications, firms, and source wording remain attached to their individual rows. Opening this dossier never hides products that did not match a prior timeline filter.

device · product 1 of 1

Natus Quantum System with NeuroWorks Software. Catalog /Part Numbers: 013926. The Natus Quantum Amplifier is intended to be used as an electroencephalograph: to acquire, display, store and archive electrophysiological signals. The amplifier should be used in conjunction with Natus NeuroWorks /SleepWorks software to acquire scalp and intracranial electroencephalographic (EEG) signals as well as polysomnographic (PSG) signals.

Z-0581-2016
Recall number
Z-0581-2016
Initiated
November 11, 2015
Classification
Class II
Status
Terminated
Quantity
56 (43 US, 13 OUS)

App-derived interpretation

Unknown reason.no_named_rule · v1.0.0
During an internal testing, Natus Medical Incorporated, identified that in Neuro Works 8.1 with Quantum hardware, the incoming signal is displayed with reversed polarity.

These labels are deterministic app interpretations, not FDA categories.

Official device-enrichment evidence · Sourced

Software Manufacturing/Software Deployment

Compare all device evidence states

Inspect official wording and provenance

Reason for recall

During an internal testing, Natus Medical Incorporated, identified that in Neuro Works 8.1 with Quantum hardware, the incoming signal is displayed with reversed polarity.

Code information

Serial Number 013926020008 013926020009 013926020006 013926020016 013926020014 013926030024 013926030031 013926020001 013926020004 013926030059 013926030060 013926030074 013926030075 013926030052 013926030017 013926030018 013926030021 013926030053 013926030101 013926030058 013926030019 013926030038 013926030039 013926030044 013926020015 013926030097 013926020013 013926030055 013926030056 013926030081 013926030096 013926030078 013926030048 013926030057 013926030064 013926030047 013926030027 013926030025 013926030042 013926030023 013926030030 013926030036 013926030026 013926030050 013926030080 013926030099 013926030035 013926030046 013926030049 013926030073 013926030020 013926030092 013926030040 013926030041 013926030061 013926030062

Distribution pattern

Worldwide Distribution: US Distribution including states of: AL, AZ, AR, CO, FL, GA, MD, MA, MN, MS, NJ, NY, OH, SC, TN, TX and UT; and countries of: INDIA, KOREA, SPAIN, SWITZERLAND, THAILAND, UNITED KINGDOM, and CANADA. .

Field note

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