510(k) Report

510(k) · Cleared

Cleared

Medrad Atd-T Interface Device

K974438510(k) TraditionalCleared Apr 30, 1998157-day reviewClass II21 CFR 892.1000

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

Medrad, Inc. · MOS Coil, Magnetic Resonance, Specialty

Cleared on Apr 30, 1998 after a 157-day review. The FDA summary names its predicate without a number. 19 of the 221 devices in its family, counting itself, have a Class I recall. 220 later devices descend from it.

Decided
Apr 30, 1998
Review
157 days
Class
Class II
Product code
MOS
Recalls
None
Predicates
0

220 later devices descend from it, 1 citing it directly. 19 of the 221 devices in this family, counting this one, have a Class I recall.

Descendants, by year cleared 2005: 1 descendant cleared2020: 22 descendants cleared, 3 with a Class I recall32011: 1 descendant cleared2006: 1 descendant cleared2012: 1 descendant cleared, 1 with a Class I recall12014: 7 descendants cleared2018: 18 descendants cleared, 2 with a Class I recall22013: 11 descendants cleared, 2 with a Class I recall22016: 5 descendants cleared, 1 with a Class I recall12019: 19 descendants cleared, 1 with a Class I recall12017: 15 descendants cleared, 1 with a Class I recall12015: 7 descendants cleared, 1 with a Class I recall12024: 18 descendants cleared2022: 21 descendants cleared, 2 with a Class I recall22025: 20 descendants cleared, 1 with a Class I recall12023: 25 descendants cleared, 3 with a Class I recall32021: 9 descendants cleared, 1 with a Class I recall12026: 19 descendants cleared1995200020052010201520202025
  1. This deviceK974438 Medrad Atd-T Interface DeviceMedrad, Inc. · 1998
  2. Descendant · cites it directly · 219 of its ownK053042 Medrad 1.5T Pelvic Imaging System Interface DeviceMedrad, Inc. · 2005
  3. Descendant · 2 generations on · 216 of its ownK103274 Sentinelle Endo Coil Array for Pelvic ImagingSentinelle Medical, Inc. · 2011
  4. Descendant · 3 generations on · 215 of its ownK121434 Software Syngo MR D13A for the Magnetom Systems…Siemens Medi Cal Solutions, Inc. · 2012 · Recalled (Class I)
  5. Descendant · 4 generations on · 115 of its ownK141977 Magnetom Aera with Software Syngo MR E11A, Magnetom Skyra with…Siemens Medical Solutions USA, Inc. · 2014
  6. Descendant · 5 generations on · 85 of its ownK151579 MAGNETOM Aera (24-channel), MAGNETOM Avanto fit, MAGNETOM Skyra fit…Siemens Medical Solutions USA, Inc. · 2015 · Recalled (Class I)

Showing 5 of 220 descendants. See all descendants

Descendants cleared per year

2005: 12006: 12011: 12012: 12013: 112014: 72015: 72016: 52017: 152018: 182019: 192020: 222021: 92022: 212023: 252024: 182025: 202026: 19
2005high 25 (2023) · low 0 (2007)2026

Class I recalls in this family

Most influential descendants

Showing 5 of 220 · See all
  • K053042Medrad 1.5T Pelvic Imaging System Interface DeviceMedrad, Inc. · 2005 · cites it directly219descendants
  • K103274Sentinelle Endo Coil Array for Pelvic ImagingSentinelle Medical, Inc. · 2011 · 2 generations on216descendants
  • K121434Software Syngo MR D13A for the Magnetom Systems Aera/Skyra/Avanto/VerioSiemens Medi Cal Solutions, Inc. · 2012 · 3 generations on215descendants
  • K141977Magnetom Aera with Software Syngo MR E11A, Magnetom Skyra with Software Syngo MR E11A…Siemens Medical Solutions USA, Inc. · 2014 · 4 generations on115descendants
  • K151579MAGNETOM Aera (24-channel), MAGNETOM Avanto fit, MAGNETOM Skyra fit, MAGNETOM Prisma…Siemens Medical Solutions USA, Inc. · 2015 · 5 generations on85descendants
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
0 (this device)K974438Medrad Atd-T Interface DeviceMedrad, Inc.1998—
+1K053042Medrad 1.5T Pelvic Imaging System Interface DeviceMedrad, Inc.2005—
+2K103274Sentinelle Endo Coil Array for Pelvic ImagingSentinelle Medical, Inc.2011—
+3K121434Software Syngo MR D13A for the Magnetom Systems Aera/Skyra/Avanto/VerioSiemens Medi Cal Solutions, Inc.2012Class I
+4K141977Magnetom Aera with Software Syngo MR E11A, Magnetom Skyra with Software Syngo…Siemens Medical Solutions USA, Inc.2014—
+5K151579MAGNETOM Aera (24-channel), MAGNETOM Avanto fit, MAGNETOM Skyra fit, MAGNETOM…Siemens Medical Solutions USA, Inc.2015Class I

Descendants by year cleared

Year clearedDevicesWith a Class I recall
200510
200610
201110
201211
2013112
201470
201571
201651
2017151
2018182
2019191
2020223
202191
2022212
2023253
2024180
2025201
2026190
FIG. 1 — Lineage of K974438, 1998–2026Source: 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.

19 devices in this family have 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 MOS device

  1. #1 K253738 3.0T Air 32CH Hnascore 15.2 · 16 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
*—GE 1.5T Atd-II
Named without a submission number
—

What descends from it? (220)

See all 220

1 later device cites it directly; ranked here by how many devices descend from each in turn.

NumberDeviceApplicantDecidedDescendants
K053042Medrad 1.5T Pelvic Imaging System Interface DeviceMedrad, Inc.2005219

Has anything in its family been recalled? (19 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.

  • K121434Software Syngo MR D13A for the Magnetom Systems Aera/Skyra/Avanto/VerioSiemens Medi Cal Solutions, Inc. · 2012 · 3 generations on · ◆ in the 2012 descendants bar of FIG. 12 Class I recalls
  • K181613MAGNETOM Avanto, MAGNETOM Verio with software syngo MR E11DSiemens Medical Solutions USA, Inc. · 2018 · 4 generations on · ◆ in the 2018 descendants bar of FIG. 12 Class I recalls
  • K130885Magnetom Avanto-Fit, Magnetom Skyra-FitSiemens Medical Solutions USA, Inc. · 2013 · 4 generations on · ◆ in the 2013 descendants bar of FIG. 11 Class I recall
  • K132119Magnetom Prisma, Magnetom Prisma FitSiemens Medical Solutions USA, Inc. · 2013 · 5 generations on · ◆ in the 2013 descendants bar of FIG. 11 Class I recall
  • K153343MAGNETOM Aera, MAGNETOM Skyra, MAGNETOM Prisma, MAGNETOM Prisma fitSiemens Medi Cal Solutions, Inc. · 2016 · 5 generations on · ◆ in the 2016 descendants bar of FIG. 11 Class I recall
  • K151579MAGNETOM Aera (24-channel), MAGNETOM Avanto fit, MAGNETOM Skyra fit, MAGNETOM Prisma, MAGNETOM Prisma fitSiemens Medical Solutions USA, Inc. · 2015 · 5 generations on · ◆ in the 2015 descendants bar of FIG. 12 Class I recalls
  • K200213Biograph mMR with syngo MR E11P-AP01 system softwareSiemens Medical Solutions USA, Inc. · 2020 · 5 generations on · ◆ in the 2020 descendants bar of FIG. 11 Class I recall
  • K170396MAGNETOM VidaSiemens Medical Solutions USA, Inc. · 2017 · 6 generations on · ◆ in the 2017 descendants bar of FIG. 11 Class I recall
  • K173592MAGNETOM Aera, MAGNETOM Skyra/Skyrafit, MAGNETOM Prisma/Prismafit, MAGNETOM AvantofitSiemens Medical Solutions USA, Inc. · 2018 · 6 generations on · ◆ in the 2018 descendants bar of FIG. 12 Class I recalls
  • K250443MAGNETOM Avanto Fit; MAGNETOM Skyra Fit; MAGNETOM Sola Fit; MAGNETOM Viato.MobileSiemens Healthcare GmbH · 2025 · 7 generations on · ◆ in the 2025 descendants bar of FIG. 12 Class I recalls
  • K183244MAGNETOM LuminaSiemens Medical Solutions USA, Inc. · 2019 · 8 generations on · ◆ in the 2019 descendants bar of FIG. 11 Class I recall
  • K192924MAGNETOM Vida, MAGNETOM Lumina, MAGNETOM Vida FitSiemens Medical Solutions USA, Inc. · 2020 · 9 generations on · ◆ in the 2020 descendants bar of FIG. 12 Class I recalls

Nearest 12 of 19 shown.

What does this lineage say?

  • Of its descendants, K053042 (Medrad, Inc., 2005) has gone furthest, with 219 descendants of its own.

How does its category compare?

All MOS devices

MOS Coil, Magnetic Resonance, Specialty: FDA decisions, review times, recalls and adverse event reports over 20 years.

FDA decisions per year · MOS

3in 2025

2007: 162008: 192009: 102010: 162011: 252012: 152013: 72014: 122015: 62016: 112017: 92018: 102019: 32020: 52021: 42022: 112023: 102024: 102025: 32026 (partial year): 10
2007high 25 (2011) · low 3 (2019)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · MOS

59in 2025

2007: 19 days median2008: 33 days median2009: 43 days median2010: 78 days median2011: 57 days median2012: 49 days median2013: 87 days median2014: 60 days median2015: 58 days median2016: 42 days median2017: 63 days median2018: 30 days median2019: 178 days median2020: 51 days median2021: 41 days median2022: 79 days median2023: 59 days median2024: 39 days median2025: 59 days median2026 (partial year): 45 days median
2007high 178 (2019) · low 19 (2007)2026

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

Recalls per year · MOS

13in 2024

2008: 22010: 12012: 12015: 22019: 82020: 12024: 13
2007high 13 (2024) · low 0 (2007)2026

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

Adverse event reports per year · MOS

2in 2025

2007: 42008: 22009: 52010: 132011: 72012: 122013: 102014: 42015: 52016: 72017: 92018: 72019: 82020: 22021: 32022: 52023: 42024: 82025: 2
2007high 13 (2010) · low 2 (2008)2025

MAUDE reports naming product code MOS, 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
2007161904
2008193322
2009104305
20101678113
2011255707
20121549112
2013787010
2014126004
201565825
2016114207
201796309
2018103007
2019317888
202055112
202144103
2022117905
2023105904
20241039138
202535902
202610450—

What is it indicated for?

The purpose of the ATD-T is to provide interface and support functions to allow

the use of Medrad disposable endorectal coils with the GEMS Signa 1.5 Tesla

MRI Scanner System and Torso Array Coil. The use of the ATD-T is a

requirement whenever MR imaging is to be performed using the GEMS Signa 1.5

Tesla MRI System with the Torso Array Coil and any of the Medrad family of

disposable endorectal coils. Use of the ATD-T is indicated with all 1.5 Tesla

Endorectal Coils.

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. “K974438: Medrad Atd-T Interface Device.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K974438

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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