510(k) Report

510(k) · Cleared

Cleared

medXion NEXUS

K253935510(k) TraditionalCleared May 15, 2026157-day reviewClass II21 CFR 892.1750

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

medXion Technologies, Inc. · OAS X-Ray, Tomography, Computed, Dental

Cleared on May 15, 2026 as substantially equivalent to K193329 (Prexion Corporation, 2020) after a 157-day review. Its family tree reaches back 2 generations to 2019.

Decided
May 15, 2026
Review
157 days
Class
Class II
Product code
OAS
Recalls
None
Predicates
1

Its longest line of descent runs back 2 generations to K190320 (2019). No later device cites it as a predicate yet.

  1. Root · 2 generations backK190320 PreXion3D ExplorerPrexion Corporation · 2019
  2. 1 generation backK193329 PreXion3D Explorer EXPrexion Corporation · 2020
  3. This deviceK253935 medXion NEXUSmedXion Technologies, Inc. · 2026
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
−2K190320PreXion3D ExplorerPrexion Corporation2019—
−1K193329PreXion3D Explorer EXPrexion Corporation2020—
0 (this device)K253935medXion NEXUSmedXion Technologies, Inc.2026—
FIG. 1 — Lineage of K253935, 2019–2026Source: 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 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 OAS? 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 OAS device

  1. #1 K213226 RCT700score 18.0 · 13 generations · no Class I recall
  2. #2 Held for the reportin the report
  3. #3 Held for the reportin the report
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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
*K193329PreXion3D Explorer EX
Summary page 6
…Xion NEXUS 5. Legally Marketed Predicate Device(s) and Reference Device Predicate Device: Product/Trade Name: PreXion3D Explorer EX 510(K) Number: K193329 Common Name: Computed Tomography X-ray System Classification Name: Computed Tomography X-ray System Classifica…
Prexion Corporation2020—

Also cleared against K193329: 1 other device →

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.

What does this lineage say?

  • The line of descent spans 7 years and passes through 2 companies; a new generation was cleared every 6.1 years on median.
  • None of the 2 ancestors has a recall.
  • 1 other device also cites its predicate K193329.

How does its category compare?

All OAS devices

OAS X-Ray, Tomography, Computed, Dental: FDA decisions, review times, recalls and adverse event reports over 20 years. 2026, this device’s year, is highlighted.

FDA decisions per year · OAS

9in 2025

2007: 22008: 22009: 22010: 12011: 62012: 72013: 102014: 52015: 52016: 122017: 42018: 112019: 72020: 92021: 112022: 62023: 122024: 42025: 92026 (partial year): 9
2007high 12 (2016) · low 1 (2010)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · OAS

144in 2025

2011: 168 days median2012: 110 days median2013: 155 days median2014: 170 days median2015: 164 days median2016: 154 days median2017: 209 days median2018: 57 days median2019: 55 days median2020: 113 days median2021: 92 days median2022: 105 days median2023: 77 days median2024: 129 days median2025: 144 days median2026 (partial year): 77 days median
2007high 209 (2017) · low 55 (2019)2026

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

Recalls per year · OAS

3in 2025

2015: 12025: 3
2007high 3 (2025) · low 0 (2007)2026

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

Adverse event reports per year · OAS

1in 2025

2008: 12019: 12022: 12023: 12024: 22025: 1
2007high 2 (2024) · low 0 (2007)2025

MAUDE reports naming product code OAS, 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
20072—00
20082—01
20092—00
20101—00
2011616800
2012711000
20131015500
2014517000
2015516410
20161215400
2017420900
2018115700
201975501
2020911300
2021119200
2022610501
2023127701
2024412902
2025914431
20269770—

What is it indicated for?

MedXion NEXUS is intended to produce three-dimensional digital X-ray images of the dental, oral, maxillofacial region, and ENT (Ear, Nose and Throat) and neck region at the direction of healthcare professionals as diagnostic support for adult and pediatric patients. This device is not intended for use on patients less than approximately 21 kg (46 lb) in weight and 113 cm (44.5 in) in height; these height and weight measurements approximately correspond…

Read the full statement (137 words)

MedXion NEXUS is intended to produce three-dimensional digital X-ray images of the dental, oral, maxillofacial region, and ENT (Ear, Nose and Throat) and neck region at the direction of healthcare professionals as diagnostic support for adult and pediatric patients.

This device is not intended for use on patients less than approximately 21 kg (46 lb) in weight and 113 cm (44.5 in) in height; these height and weight measurements approximately correspond to that of an average 5 year old. Use of equipment and exposure settings designed for adults of average size can result in excessive radiation exposure for a smaller patient. Studies have shown that pediatric patients may be more radiosensitive than adults (i.e., the cancer risk per unit dose of ionizing radiation is higher), and so unnecessary radiation exposure is of particular concern for pediatric patients.

Indications for use as stated in the FDA summary.

Cite this page

510(k) Report. “K253935: medXion NEXUS.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 4, 2026. https://510kreport.com/device/K253935

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Record history
  • FDA decision record loaded Oct 30, 2026
  • Summary read Oct 30, 2026 (extraction version 2d9447fa9ea4)
  • Lineage and recalls computed Nov 3, 2026
  • Page last updated Nov 3, 2026