FDA record research

Amplitude-Integrated Electroencephalograph (OMA) — FDA decisions, comparisons and evidence

The acquired FDA endpoint has no selected substantially-equivalent K-number decisions under primary product code OMA during 2021–2025. Its latest selected record across the endpoint is dated 2020-01-30. Use that dated record only as historical context. Check the recorded scope and current route separately; these data do not provide a recent timing benchmark. The complete-year window has 0 decisions; the separate all-observed-date count is 16. These denominators describe different date ranges.

Evidence retrieved 2026-10-07. Source versions and topic-specific limits are listed below.

Recorded scope and its declared regulatory reference

An exact FDA-record regulation_number match to one acquired Title 21 section. Records with the same normalized scope definition, class, regulation and recorded submission/GMP flags are grouped. Sparse definitions and generic exemption boilerplate do not qualify. No text-similarity equivalence or legal applicability is inferred.

What scope does the FDA record describe?

Measure and record electrical activity of the brain by acquisition of amplitude-integrated electroencephalograph (electroencephalograph signals that have been filtered and displayed in a specific manner).

Compare the proposed indication, user, anatomy, technology and operating principle with this actual scope; record differences and unresolved facts.

Cited source

Which current section does the record cite?

§ 882.1400 Electroencephalograph. (a) Identification. An electroencephalograph is a device used to measure and record the electrical activity of the patient's brain obtained by placing two or more electrodes on the head. (b) Classification. Class II (performance standards).

Read the identification, classification, conditions and referenced limitations in the cited section. A numeric reference match is not a buyer classification or exemption determination.

Cited source

Historical FDA comparison

2021–2025: five complete calendar years

Primary code OMA

All statistics in this section use decisions dated 2021-01-01 to 2025-12-31. The partial 2026 update below is excluded from these distributions.

0Selected decisions in these five years

WithheldMedian receipt-to-decision calendar days

0Valid date pairs in the distribution

There are 0 valid recent date pairs. Distribution summaries require at least 20; older records are not substituted for a current benchmark.

20210

20220

20230

20240

20250

Statistical source: FDA openFDA 510(k) decision dataset. Partition 1 Download the identified records and dates (CSV).

Filters, exclusions and reproducible calculation

Deduplicate by official submission ID across the complete current manifest partitions. Select exact primary product code, K-number format and the stated SE decision codes with valid dates. Recent distributions use the five complete calendar years preceding the latest valid endpoint decision year. Partial-year counts compare equal January-to-cutoff periods. Quartiles use linear interpolation at (n-1)*p and are withheld below 20 valid date pairs. The analysis n describes only its declared complete-year window; selected_se_n separately counts all selected recorded dates through the cutoff.

16 selected records across all observed dates; 0 other/invalid identifier or decision-date records excluded. 0 missing or invalid date pairs in the five-year window.

Date fields: date_received → decision_date. Quantiles: Hyndman–Fan type 7: linear interpolation at (n − 1) × p; displayed to one decimal; n ≥ 20 valid pairs.

Receipt-to-decision calendar elapsed time includes time outside active FDA review; it is not FDA review time, a promised project timeline or an estimate of future clearance. This selected recorded cohort does not include all applications or establish a success probability, predicate suitability, market size, current market availability or legal authorization for another product.

Calculation fda-buyer-research-3 · database cutoff 2026-09-27. CSV rows identify each official K-number, cohort, date pair, exclusion reason and source version.

Separate partial-year update

2026 decisions through 2026-09-27

0 selected decisions from 2026-01-01 to 2026-09-27. The equivalent previous-year period contains 0 decisions through 2025-09-27. These counts describe the records; they are not market growth or submission success rates.

Named records to investigate

Latest decisions across the database

These dated records may come from 2026 or earlier years. They are a separate investigation list, not the five-year statistical cohort. Compare the actual indications and technology before considering a record as a comparator.

Official record / device	Recorded applicant	Decision	Recorded type	Calendar days
K192889 ↗Neo	Eemagine Medical Imaging Solutions GmbH	2020-01-30	Traditional	112
K163644 ↗Nihon Kohden QP-160AK EEG Trend Program	Nihon Kohden Corporation	2017-05-19	Traditional	147
K161027 ↗Cadwell AmpliScan	Cadwell Industries, Inc.	2016-11-08	Traditional	210
K152301 ↗Background Pattern Classification [BPc(TM)]	Natus Medical Incorporated Dba Excel-Tech Ltd. (Xltek)	2016-06-03	Traditional	294
K130238 ↗NIHON KOHDEN AE-918P NEURO UNIT	Nihon Kohden Corp.	2015-03-04	Traditional	762
K131789 ↗CEREBRALOGIK- AEEG	Mennen Medical , Ltd.	2013-12-27	Traditional	192
K123079 ↗OLYMPIC BRAINZ MONITOR	Excel-Tech Ltd. (Xltek)	2013-05-08	Traditional	219
K120485 ↗NIHON KOHDEN QP-160 AK TREND PROGRAM WITH THE ADDITION OF DSA ASYMMETRY TREND AND FFT P	Nihon Kohden America, Inc.	2012-03-16	Special	28

Supporting documents actually acquired

Go beyond the database row

Read the source context, then compare the evidence with your design. Topic locations below are text matches, including possible limitations or negative statements; they are not a mandatory test list.

K192889 · official summary PDF ↗

No reviewed topic index available; open the original document.

K163644 · official summary PDF ↗

Term mention: Software verification · PDF page 9 Term occurrence only; read the original passage, including limitations and negation.
Term mention: Performance testing · PDF page 9 Term occurrence only; read the original passage, including limitations and negation.

K161027 · official summary PDF ↗

Term mention: Software verification · PDF page 7 Term occurrence only; read the original passage, including limitations and negation.
Term mention: Biocompatibility · PDF page 7 Negative or not-applicable wording occurs nearby; read the original passage.
Term mention: Electrical safety · PDF page 7 Negative or not-applicable wording occurs nearby; read the original passage.
Term mention: Electromagnetic compatibility · PDF page 7 Negative or not-applicable wording occurs nearby; read the original passage.

The documents are a bounded sample of acquired summaries, not complete evidence coverage of the cohort.

Recorded classification context

Known context: US. Match the intended use and design with the recorded category before treating it as applicable.

Source fact	Recorded value
FDA product code	OMA [1]
Generic device category	Amplitude-Integrated Electroencephalograph [1]
Recorded scope	Measure and record electrical activity of the brain by acquisition of amplitude-integrated electroencephalograph (electroencephalograph signals that have been filtered and displayed in a specific manner). [1]
Recorded class	2 [1]
Regulation	882.1400 [1]
Medical specialty	Neurology [1]

Build a comparison that explains the differences

Use this checklist to gather your business or product details before speaking with a specialist. The items below explain what to record and suggest useful supporting documents. You can add your own answers in the editable project brief.

Which specific part of the recorded scope fits or differs?
Put your proposed label and design beside the quoted definition. Record matching facts, differences and missing facts separately; naming the category alone cannot resolve scope.
Useful evidence: Proposed indication/design and a definition-to-product comparison with source locators.
Have the cited section and its limitations been reviewed?
Record the applicable paragraph, conditions and cross-referenced limitations after specialist review. Keep a claimed exemption separate from actual establishment, listing and quality-system responsibilities.
Useful evidence: Dated classification/route rationale and the current provisions relied on, with unresolved conditions.
Separate historical research from a recent comparator
No selected decision falls in the complete-year window. Any named records shown are separately dated historical or current-year research. Obtain their actual indications and assess the current route before using a comparator; the absence of a recent record does not establish an exemption or a route.
Useful evidence: Proposed indication/design, the dated named record if available, and a current route/comparator research rationale.
Explain the technology and evidence differences
For each comparison, record the different materials, hardware, software functions and operating conditions. Link each difference to existing evidence or an unresolved evaluation task.
Useful evidence: A three-column matrix: comparator fact / your design fact / evidence or unresolved gap.
Prepare a scope-based schedule without a sparse timing benchmark
This recent cohort has fewer than 20 valid date pairs, so it supplies no median or percentile benchmark. Ask for a schedule based on actual preparation, evidence gaps, interactions and response assumptions; keep any historical decision context separately dated.
Useful evidence: Document/test readiness, unresolved route/evidence tasks and the assumptions behind the specialist’s proposed sequence.

Work packages and dependencies

Conditional: FDA 510(k) Submission Services — Review the supplied facts and evidence gaps before confirming the service scope.
Optional: Find FDA US Agent Services | Compare & Get Quotes — Include only if your product, actor and delivery needs justify this additional scope. Confirm the responsibility and evidence handoff with the coordinating specialist.
Optional: FDA QMSR Transition & Inspection Readiness (ISO 13485 Alignment) — Include only if your product, actor and delivery needs justify this additional scope. Confirm the responsibility and evidence handoff with the coordinating specialist.

What needs to happen first

FDA 510(k) Submission Services → Find FDA US Agent Services | Compare & Get Quotes: Confirm the main product/actor scope and evidence gaps before deciding whether to commission this additional service.
FDA 510(k) Submission Services → FDA QMSR Transition & Inspection Readiness (ISO 13485 Alignment): Confirm the main product/actor scope and evidence gaps before deciding whether to commission this additional service.

Questions for providers

Which of the named OMA decisions are actually comparable to our proposed indications and technology, and which would you exclude?
Which evidence differences prevent us from using the comparison yet, and what deliverable resolves each one?
Does your schedule separate submission preparation, testing, FDA interactions and customer response time? What assumptions change it?

Sources and data dates

Read the official document in context. The audit details identify the precise locators and preserved versions used for this page.