510(k) Report

510(k) · Cleared

Cleared

Machida Flexible Neuro-Endoscope, Models Neu-4, Neu-4L

K993568510(k) TraditionalCleared Mar 13, 2000144-day reviewClass II21 CFR 882.1480

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

Machida Endoscope Co., Ltd. · GWG Endoscope, Neurological

Cleared on Mar 13, 2000 after a 144-day review. The FDA summary names its predicate without a number.

Decided
Mar 13, 2000
Review
144 days
Class
Class II
Product code
GWG
Recalls
None
Predicates
0

The FDA summary names its predicate without a number.

FIG. 1 — Lineage of K993568Source: FDA 510(k) database · 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 GWG? 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 GWG device

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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.

TypeNumberDeviceApplicantDecidedRecalls
*—CODMAN Steerable Neuroendoscope
Named without a submission number
—

What descends from it?

No later submission names this one as a predicate yet.

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.

How does its category compare?

All GWG devices

GWG Endoscope, Neurological: FDA decisions, review times, recalls and adverse event reports over 20 years.

FDA decisions per year · GWG

2in 2025

2008: 22013: 12014: 22016: 22017: 42018: 42019: 32020: 22021: 32023: 52024: 12025: 22026 (partial year): 4
2007high 5 (2023) · low 0 (2007)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · GWG

269in 2023

2017: 126 days median2018: 128 days median2019: 156 days median2021: 106 days median2023: 269 days median2026 (partial year): 217 days median
2007high 269 (2023) · low 106 (2021)2026

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

Recalls per year · GWG

2in 2011

2009: 12011: 2
2007high 2 (2011) · low 0 (2007)2026

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

Adverse event reports per year · GWG

33in 2025

2007: 32008: 52010: 12011: 42012: 72013: 32014: 192015: 372016: 252017: 122018: 162019: 102020: 192021: 212022: 122023: 92024: 92025: 33
2007high 37 (2015) · low 0 (2009)2025

MAUDE reports naming product code GWG, 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—03
20082—05
20090—10
20100—01
20110—24
20120—07
20131—03
20142—019
20150—037
20162—025
20174126012
20184128016
20193156010
20202—019
20213106021
20220—012
2023526909
20241—09
20252—033
202642170—

What is it indicated for?

MACHLDA Flexible Neuro-Endoscopes, Model NEU-4/NEU-4L are designed to be introduced into the cranium area through the surgically created oriticc for the purpose of the observation, the Lreatment and the recording by photography.

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. “K993568: Machida Flexible Neuro-Endoscope, Models Neu-4, Neu-4L.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 4, 2026. https://510kreport.com/device/K993568

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Record history
  • FDA decision record loaded May 2, 2026
  • Summary read Oct 13, 2026 (extraction version 9eaa42aa01ed)
  • Page last updated Nov 3, 2026