# K201931: Dixi Medical Intraoperative Subdural Electrodes (Strips and Grids)

- Pathway: 510(k) (Traditional)
- Applicant: Dixi Medical
- Decided: Oct 2, 2021 after 446 days
- Product code: GYC (Electrode, Cortical)
- Device class: 2
- Regulation: 21 CFR 882.1310
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
Longest line of descent: 4 generations back to K850342 (1985). 6 ancestors in all.
No later device cites it as a predicate yet.
1 of 7 devices in its family (counting itself) has a Class I recall.

## Predicates on the family tree (from the FDA summary)
- 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, Ad-Tech Medical Instrument Corporation (2020) Summary page 4.

## Indications for use
The DIXI Medical Intraoperative Subdural Electrodes (Strips and Grids) are intended for intraoperative use for less than or equal to 24 hours with recording and stimulation equipment for the recording and stimulation of electrical signals on the surface level of the brain. The recording of electrical activity supports brain mapping.

Source page: https://510kreport.com/device/K201931
Methodology: https://510kreport.com/methodology