510(k) Report

510(k) · Cleared

Cleared

Olympic Medical Lectromed Cerebral Function Monitor System, Model 5330

K020335510(k) TraditionalCleared Jun 18, 2002137-day reviewClass II21 CFR 882.1400

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

Olympic Medical Corp. · OMC Reduced- Montage Standard Electroencephalograph

Cleared on Jun 18, 2002 as substantially equivalent to K983229 (Olympic Medical Corp., 1999) and 1 other predicate after a 137-day review. Its family tree reaches back 3 generations to 1996. 18 later devices descend from it.

Decided
Jun 18, 2002
Review
137 days
Class
Class II
Product code
OMC
Recalls
None
Predicates
2

Its longest line of descent runs back 3 generations to K963644 (1996). 5 ancestors in all, the oldest K791580 (1979). 18 later devices descend from it, 1 citing it directly.

Other ancestors, by year clearedDescendants, by year cleared 1979: 1 other ancestor1998: 1 other ancestor2003: 1 descendant cleared2008: 2 descendants cleared2013: 1 descendant cleared2020: 2 descendants cleared2019: 2 descendants cleared2010: 1 descendant cleared2018: 1 descendant cleared2015: 1 descendant cleared2016: 1 descendant cleared2012: 1 descendant cleared2025: 1 descendant cleared2017: 1 descendant cleared2022: 1 descendant cleared2024: 1 descendant cleared2026: 1 descendant clearedK963644 · A-1000 Eeg Monitor and a-1050 Eeg Monitor · Aspect Medical Systems, Inc. · 1996K973596 · Spacelabs Medical 90482 Bispectral Index Analysis (Bis) Module · Spacelabs Medical, Inc. · 1998K983229 · Olympic Medical Lectromed Cerebral Function Monitor System · Olympic Medical Corp. · 199919801990200020102020
Other ancestors, by generationDescendants, by generation 1 generation back: 1 other ancestor2 generations back: 1 other ancestor 1 generation forward: 1 descendant2 generations forward: 3 descendants3 generations forward: 6 descendants4 generations forward: 4 descendants5 generations forward: 2 descendants6 generations forward: 2 descendants K983229 · Olympic Medical Lectromed Cerebral Function Monitor System · Olympic Medical Corp. · 1999K973596 · Spacelabs Medical 90482 Bispectral Index Analysis (Bis) Module · Spacelabs Medical, Inc. · 1998K963644 · A-1000 Eeg Monitor and a-1050 Eeg Monitor · Aspect Medical Systems, Inc. · 19960+5
  1. Root · 3 generations backK963644 A-1000 Eeg Monitor and a-1050 Eeg MonitorAspect Medical Systems, Inc. · 1996
  2. 2 generations backK973596 Spacelabs Medical 90482 Bispectral Index Analysis (Bis) ModuleSpacelabs Medical, Inc. · 1998
  3. 1 generation backK983229 Olympic Medical Lectromed Cerebral Function Monitor SystemOlympic Medical Corp. · 1999
  4. This deviceK020335 Olympic Medical Lectromed Cerebral Function Monitor System, Model 5330Olympic Medical Corp. · 2002
  5. Descendant · cites it directly · 17 of its ownK031149 Olympic CFM 6000Olympic Medical Corp. · 2003
  6. Descendant · 2 generations on · 14 of its ownK080217 Component Neuromonitoring SystemMoberg Research, Inc. · 2008 · Recalled
  7. Descendant · 2 generations on · 8 of its ownK081551 Twin Neurotrac-IiiAstro-Med, Inc. · 2008
  8. Descendant · 3 generations on · 7 of its ownK092573 Nihon Kohden QP-160AK Eeg Trend ProgramNihon Kohden America, Inc. · 2010
  9. Descendant · 4 generations on · 5 of its ownK120485 Nihon Kohden QP-160 AK Trend Program with the Addition of Dsa…Nihon Kohden America, Inc. · 2012

Showing 5 of 18 descendants. See all descendants

Descendants cleared per year

2003: 12008: 22010: 12012: 12013: 12015: 12016: 12017: 12018: 12019: 22020: 22022: 12024: 12025: 12026: 1
2003high 2 (2008) · low 0 (2004)2026

Most influential descendants

Showing 5 of 18 · See all
  • K031149Olympic CFM 6000Olympic Medical Corp. · 2003 · cites it directly17descendants
  • K080217Component Neuromonitoring SystemMoberg Research, Inc. · 2008 · 2 generations on14descendants
  • K081551Twin Neurotrac-IiiAstro-Med, Inc. · 2008 · 2 generations on8descendants
  • K092573Nihon Kohden QP-160AK Eeg Trend ProgramNihon Kohden America, Inc. · 2010 · 3 generations on7descendants
  • K120485Nihon Kohden QP-160 AK Trend Program with the Addition of Dsa Asymmetry Trend and FFT PNihon Kohden America, Inc. · 2012 · 4 generations on5descendants
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
−3K963644A-1000 Eeg Monitor and a-1050 Eeg MonitorAspect Medical Systems, Inc.1996—
−2K973596Spacelabs Medical 90482 Bispectral Index Analysis (Bis) ModuleSpacelabs Medical, Inc.1998—
−1K983229Olympic Medical Lectromed Cerebral Function Monitor SystemOlympic Medical Corp.1999—
0 (this device)K020335Olympic Medical Lectromed Cerebral Function Monitor System, Model 5330Olympic Medical Corp.2002—
+1K031149Olympic CFM 6000Olympic Medical Corp.2003—
+2K080217Component Neuromonitoring SystemMoberg Research, Inc.20081
+2K081551Twin Neurotrac-IiiAstro-Med, Inc.2008—
+3K092573Nihon Kohden QP-160AK Eeg Trend ProgramNihon Kohden America, Inc.2010—
+4K120485Nihon Kohden QP-160 AK Trend Program with the Addition of Dsa Asymmetry Trend…Nihon Kohden America, Inc.2012—

Other ancestors by year cleared

Year clearedDevicesWith a Class I recall
197910
199810

Descendants by year cleared

Year clearedDevicesWith a Class I recall
200310
200820
201010
201210
201310
201510
201610
201710
201810
201920
202020
202210
202410
202510
202610
FIG. 1 — Lineage of K020335, 1996–2026Source: 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 OMC? 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 OMC device

  1. #1 K251550 NX01 (NX01)score 13.1 · 10 generations · no Class I recall
  2. #2 Held for the reportin the report
  3. #3 Held for the reportin the report
Get a 510(k) Report

What was it cleared against? (3)

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
*K983229Olympic Medical Lectromed Cerebral Function Monitor System
Summary page 1
…quisition of EEG signals in the intensive care unit, operating room, and for clinical research. Predicate Device - Olympic Medical Lectromed Cerebral Function Monitor (K983229). - Devices Limited Cerebral Function Monitor 4640 in commercial distribution in the U. S. prior to May 28, 1976. - Applied Med…
Olympic Medical Corp.1999—
*K791580Cerebral Function Monitor 870
Summary page 1
…erebral Function Monitor 4640 in commercial distribution in the U. S. prior to May 28, 1976. - Applied Medical Research Corporation Cerebral Function Monitor Model 870 (K791580) Device Description The Olympic Medical Lectromed Cerebral Function Monitor System consists of three modules. A header amplifie…
Applied Medical Research1979—
*—Devices Limited Cerebral Function Monitor 4640
Named without a submission number
—

Also cleared against K983229: 3 other devices →

What descends from it? (18)

See all 18

1 later device cites it directly; ranked here by how many devices descend from each in turn.

NumberDeviceApplicantDecidedDescendants
K031149Olympic CFM 6000Olympic Medical Corp.200317

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 6 years and passes through 3 companies; a new generation was cleared every 1.3 years on median.
  • None of the 5 ancestors has a recall.
  • Of its descendants, K031149 (Olympic Medical Corp., 2003) has gone furthest, with 17 descendants of its own.
  • 3 other devices also cite its predicate K983229.

How does its category compare?

All OMC devices

OMC Reduced- Montage Standard Electroencephalograph: FDA decisions, review times, recalls and adverse event reports over 20 years.

FDA decisions per year · OMC

3in 2025

2010: 12011: 12012: 12013: 12014: 12015: 12017: 12019: 12020: 12021: 12022: 12023: 22024: 32025: 32026 (partial year): 1
2007high 3 (2024) · low 0 (2007)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · OMC

172in 2025

2024: 56 days median2025: 172 days median
2007high 172 (2025) · low 56 (2024)2026

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

Recalls per year · OMC

No recall names OMC since 2007.

Adverse event reports per year · OMC

2in 2025

2023: 22024: 22025: 2
2007high 2 (2023) · low 0 (2007)2025

MAUDE reports naming product code OMC, 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
20101—00
20111—00
20121—00
20131—00
20141—00
20151—00
20160—00
20171—00
20180—00
20191—00
20201—00
20211—00
20221—00
20232—02
202435602
2025317202
20261—0—

What is it indicated for?

The Olympic Medical Lectromed Cerebral Function Monitor System is intended to be used by a variety of clinicians to acquire and utilize EEG signals, when used in conjunction with other clinical data, in intensive care areas, Operating Room, Emergency Room, and clinical research lab: - to monitor the state of the brain - for determination of, and long-term monitoring of, the neurological status of patients that may have suffered an hypoxic-ischemic event.…

Read the full statement (151 words)

The Olympic Medical Lectromed Cerebral Function Monitor System is intended

to be used by a variety of clinicians to acquire and utilize EEG signals, when

used in conjunction with other clinical data, in intensive care areas, Operating

Room, Emergency Room, and clinical research lab:

- to monitor the state of the brain

- for determination of, and long-term monitoring of, the neurological status of

patients that may have suffered an hypoxic-ischemic event.

- for monitoring of neurological status to assist in the clinical management

and treatment of the patient by observing how the treatment affects the

neurological status as shown by the CFM.

- to assist in the prediction of neurological outcome

- to monitor and record frequency and intensity of seizures to assist in

management of anti-convulsive therapy.

- to assist in the prediction of severity of Hypoxic-Ischemic Encephalopathy

and long-term outcome in infants who have suffered an hypoxic-ischemic

event.

Indications for use read by OCR from a scanned FDA summary, so letters may be misread. Check the PDF before quoting it.

Cite this page

510(k) Report. “K020335: Olympic Medical Lectromed Cerebral Function Monitor System, Model 5330.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K020335

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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