510(k) · Cleared
ClearedSubdural Strip/Intraoperative Split Electrode, Subdural Grid/Intraoperative Grid Electrode, Dual-Sided Interhemispheric Subdural Electrode, Multi-Strip and Slit Grid Subdural Electrode, Intraoperative Mapping Grid Subdural Electrode
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Ad-Tech Medical Instrument Corporation · GYC Electrode, Cortical
Cleared on Jan 25, 2020 as substantially equivalent to K053363 (Ad-Tech Medical Instrument Corp, 2006) after a 267-day review. Its family tree reaches back 3 generations to 1985. 1 of the 10 devices in its family, counting itself, has a Class I recall. 4 later devices descend from it.
- Decided
- Jan 25, 2020
- Review
- 267 days
- Class
- Class II
- Product code
- GYC
- Recalls
- None
- Predicates
- 1
Its longest line of descent runs back 3 generations to K850342 (1985). 5 ancestors in all. 4 later devices descend from it, 4 citing it directly. 1 of the 10 devices in this family, counting this one, has a Class I recall.
- Root · 3 generations backK850342 Wyler Subdural Strip ElectrodeAd-Tech Medical Instrument Corp · 1985
- 2 generations backK021144 Subdural Strip ElectrodeNicolet Biomedical, Inc. · 2002
- 1 generation backK053363 Dual-Sided Interhemispheric Subdural Electrodes, Grid Subdural…Ad-Tech Medical Instrument Corp · 2006 · Recalled (Class I)
- This deviceK191186 Subdural Strip/Intraoperative Split Electrode, Subdural…Ad-Tech Medical Instrument Corporation · 2020
- Descendant · cites it directly · 0 of its ownK242618 Layer 7-TPrecision Neuroscience, Corp. · 2025
- Descendant · cites it directly · 0 of its ownK221123 WISE Cortical Strip (WCS)Wise S.R.L. · 2022
- Descendant · cites it directly · 0 of its ownK211954 Subdural Electrode, Strip/Intraoperative Strip, Grid/Intraoperative…Spes Medica Srl · 2022
- Descendant · cites it directly · 0 of its ownK201931 Dixi Medical Intraoperative Subdural Electrodes (Strips and Grids)Dixi Medical · 2021
Class I recalls in this family
- K053363 Dual-Sided Interhemispheric Subdural Electrodes…direct predicate · 2006
Most influential descendants
Showing 4 of 4 · See all- K242618Layer 7-TPrecision Neuroscience, Corp. · 2025 · cites it directly0descendants
- K221123WISE Cortical Strip (WCS)Wise S.R.L. · 2022 · cites it directly0descendants
- K211954Subdural Electrode, Strip/Intraoperative Strip, Grid/Intraoperative Grid, Multi-Strip…Spes Medica Srl · 2022 · cites it directly0descendants
- K201931Dixi Medical Intraoperative Subdural Electrodes (Strips and Grids)Dixi Medical · 2021 · cites it directly0descendants
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −3 | K850342 | Wyler Subdural Strip Electrode | Ad-Tech Medical Instrument Corp | 1985 | — |
| −2 | K021144 | Subdural Strip Electrode | Nicolet Biomedical, Inc. | 2002 | — |
| −1 | K053363 | Dual-Sided Interhemispheric Subdural Electrodes, Grid Subdural Electrodes… | Ad-Tech Medical Instrument Corp | 2006 | Class I |
| 0 (this device) | K191186 | Subdural Strip/Intraoperative Split Electrode, Subdural Grid/Intraoperative… | Ad-Tech Medical Instrument Corporation | 2020 | — |
| +1 | K242618 | Layer 7-T | Precision Neuroscience, Corp. | 2025 | — |
| +1 | K221123 | WISE Cortical Strip (WCS) | Wise S.R.L. | 2022 | — |
| +1 | K211954 | Subdural Electrode, Strip/Intraoperative Strip, Grid/Intraoperative Grid… | Spes Medica Srl | 2022 | — |
| +1 | K201931 | Dixi Medical Intraoperative Subdural Electrodes (Strips and Grids) | Dixi Medical | 2021 | — |
Other ancestors by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 1992 | 1 | 0 |
| 1997 | 1 | 0 |
Descendants by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 2021 | 1 | 0 |
| 2022 | 2 | 0 |
| 2025 | 1 | 0 |
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.
1 device in this family has a Class I recall. 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 GYC device
- #1 K250094 Atlas Stim Headbox (NK) (31-0601-0077); Atlas…score 11.3 · 8 generations · no Class I recall
- #2 Held for the reportin the report
- #3 Held for the reportin the report
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.
| Type | Number | Device | Decided |
|---|---|---|---|
| * | K053363 | Dual-Sided Interhemispheric Subdural Electrodes, Grid Subdural Electrodes…Summary page 4…lassification Name: Cortical Electrode 21 CFR 882.1310 Product Code: GYC Class II Predicate Devices: K053363 Subdural Electrode -Dual-Sided Interhemispheric, -Grid,… | 2006 |
| † | K152769 | Fremap Electrode | 2016 |
What descends from it? (4)
4 later devices cite it directly; ranked here by how many devices descend from each in turn.
Has anything in its family been recalled? (1 Class I)
No FDA recall names this device.
Relatives with a Class I recall
Class I is FDA’s most serious recall class. A recall in the family tree is context for this device, not evidence about it.
- K053363Dual-Sided Interhemispheric Subdural Electrodes, Grid Subdural Electrodes, Intraoperative Subdural ElectrodesAd-Tech Medical Instrument Corp · 2006 · Direct predicate · ◆ on the line of descent in FIG. 11 Class I recall
What does this lineage say?
- The line of descent spans 35 years and passes through 3 companies; a new generation was cleared every 13.7 years on median.
- 1 of the 5 ancestors has a recall of any class; 1 has a Class I recall.
- Of its descendants, K242618 (Precision Neuroscience, Corp., 2025) has gone furthest, with 0 descendants of its own.
- 4 other devices also cite its predicate K053363.
How does its category compare?
All GYC devicesGYC Electrode, Cortical: FDA decisions, review times, recalls and adverse event reports over 20 years. 2020, this device’s year, is highlighted.
FDA decisions per year · GYC
2in 2025
2026 to Oct 25, outlined.
Median 510(k) review, days · GYC
Too few GYC 510(k)s in any year since 2007 to give a median.
Recalls per year · GYC
1in 2013
Class I (1 since 2007) Class II/III not classified
Adverse event reports per year · GYC
2in 2025
MAUDE reports naming product code GYC, 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 | 0 | — | 0 | 2 |
| 2008 | 2 | — | 0 | 2 |
| 2009 | 2 | — | 0 | 1 |
| 2010 | 1 | — | 0 | 3 |
| 2011 | 1 | — | 3 | 6 |
| 2012 | 0 | — | 1 (1) | 17 |
| 2013 | 0 | — | 1 | 5 |
| 2014 | 0 | — | 0 | 14 |
| 2015 | 0 | — | 0 | 9 |
| 2016 | 1 | — | 0 | 2 |
| 2017 | 0 | — | 0 | 6 |
| 2018 | 2 | — | 0 | 3 |
| 2019 | 2 | — | 0 | 1 |
| 2020 | 2 | — | 0 | 1 |
| 2021 | 1 | — | 0 | 1 |
| 2022 | 2 | — | 0 | 2 |
| 2023 | 0 | — | 0 | 2 |
| 2024 | 0 | — | 0 | 3 |
| 2025 | 2 | — | 0 | 2 |
| 2026 | 0 | — | 0 | — |
What is it indicated for?
The Ad-Tech Subdural Electrodes (Strip/Intraoperative Strip, Grid/Intraoperative Grid, Dual-Sided Interhemispheric,
Multi-Strip and Split Grid, Intraoperative Mapping Grid) are intended for temporary (< 30 days) use with recording,
monitoring, and stimulation equipment for the recording, monitoring, and stimulation of electrical signals on the surface
of the brain. The recording of electrical activity supports definition of the location of epileptogenic foci and brain
mapping.
Indications for use as stated in the FDA summary.
https://510kreport.com/device/K191186 · printed Nov 6, 2026
Cite this page
510(k) Report. “K191186: Subdural Strip/Intraoperative Split Electrode, Subdural Grid/Intraoperative Grid Electrode, Dual-Sided Interhemispheric Subdural Electrode, Multi-Strip and Slit Grid Subdural Electrode, Intraoperative Mapping Grid Subdural Electrode.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K191186
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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