510(k) Report

510(k) · Cleared

Cleared

Digitimer D185 Multipulse Cortical Stimulator

K020400510(k) TraditionalCleared Aug 23, 2002198-day reviewClass II21 CFR 882.1870

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

Meps, LLC · GWF Stimulator, Electrical, Evoked Response

Cleared on Aug 23, 2002 after a 198-day review. FDA’s file for it is a 510(k) statement, which names no predicate. 1 of the 469 devices in its family, counting itself, has a Class I recall. 468 later devices descend from it.

Decided
Aug 23, 2002
Review
198 days
Class
Class II
Product code
GWF
Recalls
None
Predicates
0

468 later devices descend from it, 5 citing it directly. 1 of the 469 devices in this family, counting this one, has a Class I recall.

Descendants, by year cleared 2011: 3 descendants cleared2008: 1 descendant cleared2005: 2 descendants cleared2003: 1 descendant cleared2007: 1 descendant cleared2006: 2 descendants cleared2017: 18 descendants cleared2012: 3 descendants cleared2010: 1 descendant cleared2016: 9 descendants cleared2019: 31 descendants cleared2021: 43 descendants cleared, 1 with a Class I recall12014: 4 descendants cleared2013: 4 descendants cleared2018: 20 descendants cleared2023: 64 descendants cleared2022: 48 descendants cleared2026: 57 descendants cleared2015: 8 descendants cleared2020: 22 descendants cleared2025: 64 descendants cleared2024: 62 descendants cleared200020052010201520202025
  1. This deviceK020400 Digitimer D185 Multipulse Cortical StimulatorMeps, LLC · 2002
  2. Descendant · cites it directly · 462 of its ownK032741 Epochxp Neurological Workstation,Epochxp Lite Neurological WorkstationAxon Systems, Inc. · 2003
  3. Descendant · cites it directly · 460 of its ownK050798 Eclipse Neurological WorkstationAxon Systems, Inc. · 2005
  4. Descendant · 2 generations on · 450 of its ownK061113 OrthomonAxon Systems, Inc. · 2006
  5. Descendant · 2 generations on · 426 of its ownK061639 Eclipse TCD Neurovascular Workstation; Elclipse Neurological…Axon Systems, Inc. · 2006
  6. Descendant · 3 generations on · 418 of its ownK111520 Ipc Powerease SystemMedtronic Xomed, Inc. · 2011 · Recalled

Showing 5 of 468 descendants. See all descendants

Descendants cleared per year

2003: 12005: 22006: 22007: 12008: 12010: 12011: 32012: 32013: 42014: 42015: 82016: 92017: 182018: 202019: 312020: 222021: 432022: 482023: 642024: 622025: 642026: 57
2003high 64 (2023) · low 0 (2004)2026

Class I recalls in this family

Most influential descendants

Showing 5 of 468 · See all
  • K032741Epochxp Neurological Workstation,Epochxp Lite Neurological WorkstationAxon Systems, Inc. · 2003 · cites it directly462descendants
  • K050798Eclipse Neurological WorkstationAxon Systems, Inc. · 2005 · cites it directly460descendants
  • K061113OrthomonAxon Systems, Inc. · 2006 · 2 generations on450descendants
  • K061639Eclipse TCD Neurovascular Workstation; Elclipse Neurological Workstation with TCD and…Axon Systems, Inc. · 2006 · 2 generations on426descendants
  • K111520Ipc Powerease SystemMedtronic Xomed, Inc. · 2011 · 3 generations on418descendants
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
0 (this device)K020400Digitimer D185 Multipulse Cortical StimulatorMeps, LLC2002—
+1K032741Epochxp Neurological Workstation,Epochxp Lite Neurological WorkstationAxon Systems, Inc.2003—
+1K050798Eclipse Neurological WorkstationAxon Systems, Inc.2005—
+2K061113OrthomonAxon Systems, Inc.2006—
+2K061639Eclipse TCD Neurovascular Workstation; Elclipse Neurological Workstation with…Axon Systems, Inc.2006—
+3K111520Ipc Powerease SystemMedtronic Xomed, Inc.20112

Descendants by year cleared

Year clearedDevicesWith a Class I recall
200310
200520
200620
200710
200810
201010
201130
201230
201340
201440
201580
201690
2017180
2018200
2019310
2020220
2021431
2022480
2023640
2024620
2025640
2026570
FIG. 1 — Lineage of K020400, 2002–2026Source: 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 510(k) statement (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 GWF device

  1. #1 K263010 ISIS Headboxes, ISIS Neurostimulator, ISIS…score 17.5 · 19 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?

FDA’s file for it is a 510(k) statement, which names no predicate.

What descends from it? (468)

See all 468

5 later devices cite it directly; ranked here by how many devices descend from each in turn.

NumberDeviceApplicantDecidedDescendants
K032741Epochxp Neurological Workstation,Epochxp Lite Neurological WorkstationAxon Systems, Inc.2003462
K050798Eclipse Neurological WorkstationAxon Systems, Inc.2005460
K051357DS7A Constant Current High Voltage Stimulator, Model DS7A; DS7AH Constant Current High…Digitimer, Ltd.200540
K071969Sen-4100 Electric StimulatorNihon Kohden America, Inc.200814
K110410MS-120BK Electric Stimulator (Extension Unit)Nihon Kohden Corp.201113

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.

  • K211616ExcelsiusHubGlobus Medical, Inc. · 2021 · 8 generations on · ◆ in the 2021 descendants bar of FIG. 11 Class I recall

What does this lineage say?

  • Of its descendants, K032741 (Axon Systems, Inc., 2003) has gone furthest, with 462 descendants of its own.

How does its category compare?

All GWF devices

GWF Stimulator, Electrical, Evoked Response: FDA decisions, review times, recalls and adverse event reports over 20 years.

FDA decisions per year · GWF

1in 2025

2007: 32008: 22009: 52010: 32011: 22012: 42013: 32014: 12015: 22016: 12017: 32019: 12020: 12021: 22022: 22023: 22024: 42025: 12026 (partial year): 3
2007high 5 (2009) · low 0 (2018)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · GWF

92in 2024

2007: 69 days median2009: 178 days median2010: 269 days median2012: 230 days median2013: 174 days median2017: 169 days median2024: 92 days median2026 (partial year): 125 days median
2007high 269 (2010) · low 69 (2007)2026

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

Recalls per year · GWF

2so far in 2026, the most since 2007

2012: 12015: 12026 (partial year): 2
2007high 2 (2026) · low 0 (2007)2026

Class I (0 since 2007) Class II/III not classified

Adverse event reports per year · GWF

1,034in 2025

2007: 22008: 12009: 12010: 42011: 102012: 442013: 892014: 252015: 222016: 202017: 602018: 582019: 942020: 652021: 552022: 452023: 1502024: 8542025: 1,034
2007high 1,034 (2025) · low 1 (2008)2025

MAUDE reports naming product code GWF, 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
200736902
20082—01
2009517801
2010326904
20112—010
20124230144
20133174089
20141—025
20152—122
20161—020
20173169060
20180—058
20191—094
20201—065
20212—055
20222—045
20232—0150
20244920854
20251—01,034
202631252—

What is it indicated for?

The Digitimer D185 is used for the intraoperative diagnosis of acute dysfunction in corticospinal axonal conduction brought about by mechanical trauma (traction, shearing, laceration, or compression) or vascular insufficiency.

Indications for use as stated in the FDA 510(k) statement.

Cite this page

510(k) Report. “K020400: Digitimer D185 Multipulse Cortical Stimulator.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K020400

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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