510(k) · Cleared
ClearedSleepscan
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Biologic Systems Corp. · OLZ Automatic Event Detection Software For Polysomnograph With Electroencephalograph
Cleared on Jan 26, 1990 after a 226-day review. FDA has not posted a summary or statement for it, so its predicates are not known. 1 later device descends from it.
- Decided
- Jan 26, 1990
- Review
- 226 days
- Class
- Class II
- Product code
- OLZ
- Recalls
- None
- Predicates
- 0
1 later device descends from it, 1 citing it directly.
- This deviceK894155 SleepscanBiologic Systems Corp. · 1990
- Descendant · cites it directly · 0 of its ownK983913 Modification to Bio-Logic SleepscanBio-Logic Systems Corp. · 1998
Most influential descendants
Showing 1 of 1 · See all- K983913Modification to Bio-Logic SleepscanBio-Logic Systems Corp. · 1998 · cites it directly0descendants
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| 0 (this device) | K894155 | Sleepscan | Biologic Systems Corp. | 1990 | — |
| +1 | K983913 | Modification to Bio-Logic Sleepscan | Bio-Logic Systems Corp. | 1998 | — |
Descendants by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 1998 | 1 | 0 |
Sources: FDA 510(k) database (decision fields), FDA recall and enforcement reports, and MAUDE; processed by 510(k) Report. Verify on FDA.gov · Methodology and accuracy.
Planning a device in OLZ? 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 OLZ device
- #1 K253390 Somnum (Somnum)score 14.3 · 10 generations · no Class I recall
- #2 Held for the reportin the report
- #3 Held for the reportin the report
What was it cleared against?
FDA has not posted a summary or statement for it, so its predicates are not known.
What descends from it? (1)
1 later device cites it directly; ranked here by how many devices descend from each in turn.
| Number | Device | Decided | Descendants |
|---|---|---|---|
| K983913 | Modification to Bio-Logic Sleepscan | 1998 | 0 |
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?
- Of its descendants, K983913 (Bio-Logic Systems Corp., 1998) has gone furthest, with 0 descendants of its own.
How does its category compare?
All OLZ devicesOLZ Automatic Event Detection Software For Polysomnograph With Electroencephalograph: FDA decisions, review times, recalls and adverse event reports over 20 years.
FDA decisions per year · OLZ
4in 2025
2026 to Oct 25, outlined.
Median 510(k) review, days · OLZ
185in 2025
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · OLZ
No recall names OLZ since 2007.
Adverse event reports per year · OLZ
3in 2025
MAUDE reports naming product code OLZ, 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 | 1 | — | 0 | 0 |
| 2008 | 0 | — | 0 | 0 |
| 2009 | 0 | — | 0 | 0 |
| 2010 | 0 | — | 0 | 0 |
| 2011 | 1 | — | 0 | 0 |
| 2012 | 1 | — | 0 | 0 |
| 2013 | 1 | — | 0 | 0 |
| 2014 | 0 | — | 0 | 0 |
| 2015 | 2 | — | 0 | 0 |
| 2016 | 3 | 122 | 0 | 1 |
| 2017 | 2 | — | 0 | 0 |
| 2018 | 1 | — | 0 | 0 |
| 2019 | 2 | — | 0 | 0 |
| 2020 | 1 | — | 0 | 0 |
| 2021 | 1 | — | 0 | 0 |
| 2022 | 1 | — | 0 | 2 |
| 2023 | 2 | — | 0 | 1 |
| 2024 | 2 | — | 0 | 2 |
| 2025 | 4 | 185 | 0 | 3 |
| 2026 | 3 | 155 | 0 | — |
https://510kreport.com/device/K894155 · printed Nov 6, 2026
Cite this page
510(k) Report. “K894155: Sleepscan.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K894155
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Record history
- FDA decision record loaded May 2, 2026
- Lineage and recalls computed Nov 3, 2026
- Page last updated Nov 3, 2026