510(k) Report

De Novo · Granted

Granted

PrimeStore MTM

DEN170029De NovoGranted Mar 19, 2018299-day reviewClass II21 CFR 866.2950

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

Longhorn Vaccines and Diagnostics, LLC · QBD Microbial Nucleic Acid Storage And Stabilization Device

Granted on Mar 19, 2018 as a new device type through De Novo after a 299-day review. 16 later devices descend from it.

Decided
Mar 19, 2018
Review
299 days
Class
Class II
Product code
QBD
Recalls
None

16 later devices descend from it, 6 citing it directly.

Descendants, by year cleared 2023: 5 descendants cleared2020: 2 descendants cleared2021: 1 descendant cleared2022: 2 descendants cleared2024: 5 descendants cleared2025: 1 descendant cleared201620182020202220242026
  1. This deviceDEN170029 PrimeStore MTMLonghorn Vaccines and Diagnostics, LLC · 2018
  2. Descendant · cites it directly · 7 of its ownK202641 DNA/RNA Shield Collection TubeZymo Research · 2020
  3. Descendant · cites it directly · 2 of its ownK201849 eNAT molecular collection and preservation mediumCopan Italia Spa · 2020
  4. Descendant · 2 generations on · 1 of its ownK223497 Spectrum Saliva Collection DeviceSpectrum Solutions, LLC · 2023
  5. Descendant · cites it directly · 1 of its ownK212113 MagXtract Collection TubeMagbio Genomics, Inc. · 2022
  6. Descendant · 2 generations on · 0 of its ownK242820 Puritan PurSafe Plus Collection and Transport SystemPuritan Medical Products, LLC · 2025

Showing 5 of 16 descendants. See all descendants

Descendants cleared per year

2020: 22021: 12022: 22023: 52024: 52025: 1
2020high 5 (2023) · low 0 (2026)2026

Most influential descendants

Showing 5 of 16 · See all
  • K202641DNA/RNA Shield Collection TubeZymo Research · 2020 · cites it directly7descendants
  • K201849eNAT molecular collection and preservation mediumCopan Italia Spa · 2020 · cites it directly2descendants
  • K223497Spectrum Saliva Collection DeviceSpectrum Solutions, LLC · 2023 · 2 generations on1descendant
  • K212113MagXtract Collection TubeMagbio Genomics, Inc. · 2022 · cites it directly1descendant
  • K242820Puritan PurSafe Plus Collection and Transport SystemPuritan Medical Products, LLC · 2025 · 2 generations on0descendants
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
0 (this device)DEN170029PrimeStore MTMLonghorn Vaccines and Diagnostics, LLC2018—
+1K202641DNA/RNA Shield Collection TubeZymo Research2020—
+1K201849eNAT molecular collection and preservation mediumCopan Italia Spa2020—
+2K223497Spectrum Saliva Collection DeviceSpectrum Solutions, LLC2023—
+1K212113MagXtract Collection TubeMagbio Genomics, Inc.2022—
+2K242820Puritan PurSafe Plus Collection and Transport SystemPuritan Medical Products, LLC2025—

Descendants by year cleared

Year clearedDevicesWith a Class I recall
202020
202110
202220
202350
202450
202510
FIG. 1 — Lineage of DEN170029, 2018–2025Source: 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 De Novo 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 QBD? 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 QBD device

  1. #1 K202641 DNA/RNA Shield Collection Tubescore 18.5 · 1 generation · 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

Does it have a predicate?

De Novo decisions do not claim a predicate device.

What descends from it? (16)

See all 16

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

NumberDeviceApplicantDecidedDescendants
K202641DNA/RNA Shield Collection TubeZymo Research20207
K201849eNAT molecular collection and preservation mediumCopan Italia Spa20202
K212113MagXtract Collection TubeMagbio Genomics, Inc.20221
K222771Sample Preservative FluidHangzhou Bioer Technology Co., Ltd.20240
K221664CLEARinse CTS Specimen Collection and Transport SystemAardvark Medical, Inc.20230
K210440Disposable Sampler Inactivated Transport Media, Nest ITMWuxi Nest Biotechnology Co., Ltd.20210

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?

  • Of its descendants, K202641 (Zymo Research, 2020) has gone furthest, with 7 descendants of its own.

How does its category compare?

All QBD devices

QBD Microbial Nucleic Acid Storage And Stabilization Device: FDA decisions, review times, recalls and adverse event reports over 20 years. 2018, this device’s year, is highlighted.

FDA decisions per year · QBD

1in 2025

2018: 12020: 22021: 12022: 22023: 52024: 52025: 1
2007high 5 (2023) · low 0 (2007)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · QBD

651in 2024

2023: 286 days median2024: 651 days median
2007high 651 (2024) · low 286 (2023)2026

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

Recalls per year · QBD

2in 2022

2022: 2, 2 Class I
2007high 2 (2022) · low 0 (2007)2026

Class I (2 since 2007) Class II/III not classified

Adverse event reports per year · QBD

No MAUDE report names QBD since 2007.

View these four charts as a table
YearDecisionsMedian 510(k) review, daysRecalls (Class I)MAUDE reports
20070—00
20080—00
20090—00
20100—00
20110—00
20120—00
20130—00
20140—00
20150—00
20160—00
20170—00
20181—00
20190—00
20202—00
20211—00
20222—2 (2)0
2023528600
2024565100
20251—00
20260—0—

What is it indicated for?

PrimeStore MTM is intended for the stabilization, transportation and inactivation of infectious unprocessed nasal washes suspected of containing Influenza A virus RNA. PrimeStore MTM is also intended for the stabilization, transportation and inactivation of infectious unprocessed sputum samples suspected of containing Mycobacterium tuberculosis DNA from human samples.

Indications for use as stated in the FDA summary.

Cite this page

510(k) Report. “DEN170029: PrimeStore MTM.” Lineage record from FDA De Novo data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/DEN170029

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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