510(k) Report

510(k) · Cleared

Cleared

Microselection Interstitial Remote Afterload Sys

K853912510(k) TraditionalCleared May 21, 1986243-day reviewClass II21 CFR 892.5700

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

Nucletron-Oldelft Corp. · JAQ System, Applicator, Radionuclide, Remote-Controlled

Cleared on May 21, 1986 after a 243-day review. FDA has not posted a summary or statement for it, so its predicates are not known. 35 later devices descend from it.

Decided
May 21, 1986
Review
243 days
Class
Class II
Product code
JAQ
Recalls
None
Predicates
0

35 later devices descend from it, 2 citing it directly.

Descendants, by year cleared 2004: 2 descendants cleared2002: 1 descendant cleared2012: 1 descendant cleared2005: 2 descendants cleared2008: 5 descendants cleared2003: 1 descendant cleared2007: 1 descendant cleared2010: 2 descendants cleared2009: 4 descendants cleared2006: 1 descendant cleared2025: 1 descendant cleared2014: 1 descendant cleared2016: 3 descendants cleared2013: 3 descendants cleared2019: 3 descendants cleared2017: 1 descendant cleared2022: 1 descendant cleared2024: 1 descendant cleared2018: 1 descendant cleared1990200020102020
  1. This deviceK853912 Microselection Interstitial Remote Afterload SysNucletron-Oldelft Corp. · 1986
  2. Descendant · cites it directly · 34 of its ownK011690 Mammosite Radiation Therapy System (RTS) Tray, Mammosite HDR…Proxima Therapeutics, Inc. · 2002
  3. Descendant · 2 generations on · 33 of its ownK030558 Mammosite Radiation Therapy System (RTS) Tray, Mammosite HDR…Proxima Therapeutics, Inc. · 2003
  4. Descendant · 2 generations on · 17 of its ownK041929 Mammosite II Radiation Therapy System (RTS) Tray, Mammosite HDR…Proxima Therapeutics, Inc. · 2004
  5. Descendant · 3 generations on · 14 of its ownK071229 Senorad Multi-Lumen Balloon Source Applicator for BranchytherapySenorx, Inc. · 2007
  6. Descendant · 3 generations on · 11 of its ownK081079 Contura MLB Source Applicator for BrachytherapySenorx, Inc. · 2008

Showing 5 of 35 descendants. See all descendants

Descendants cleared per year

2002: 12003: 12004: 22005: 22006: 12007: 12008: 52009: 42010: 22012: 12013: 32014: 12016: 32017: 12018: 12019: 32022: 12024: 12025: 1
2002high 5 (2008) · low 0 (2011)2026

Most influential descendants

Showing 5 of 35 · See all
  • K011690Mammosite Radiation Therapy System (RTS) Tray, Mammosite HDR Afterloader Accessories TrayProxima Therapeutics, Inc. · 2002 · cites it directly34descendants
  • K030558Mammosite Radiation Therapy System (RTS) Tray, Mammosite HDR Afterloader Accessories TrayProxima Therapeutics, Inc. · 2003 · 2 generations on33descendants
  • K041929Mammosite II Radiation Therapy System (RTS) Tray, Mammosite HDR Afterloader Accessories…Proxima Therapeutics, Inc. · 2004 · 2 generations on17descendants
  • K071229Senorad Multi-Lumen Balloon Source Applicator for BranchytherapySenorx, Inc. · 2007 · 3 generations on14descendants
  • K081079Contura MLB Source Applicator for BrachytherapySenorx, Inc. · 2008 · 3 generations on11descendants
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
0 (this device)K853912Microselection Interstitial Remote Afterload SysNucletron-Oldelft Corp.1986—
+1K011690Mammosite Radiation Therapy System (RTS) Tray, Mammosite HDR Afterloader…Proxima Therapeutics, Inc.2002—
+2K030558Mammosite Radiation Therapy System (RTS) Tray, Mammosite HDR Afterloader…Proxima Therapeutics, Inc.2003—
+2K041929Mammosite II Radiation Therapy System (RTS) Tray, Mammosite HDR Afterloader…Proxima Therapeutics, Inc.2004—
+3K071229Senorad Multi-Lumen Balloon Source Applicator for BranchytherapySenorx, Inc.2007—
+3K081079Contura MLB Source Applicator for BrachytherapySenorx, Inc.2008—

Descendants by year cleared

Year clearedDevicesWith a Class I recall
200210
200310
200420
200520
200610
200710
200850
200940
201020
201210
201330
201410
201630
201710
201810
201930
202210
202410
202510
FIG. 1 — Lineage of K853912, 1986–2025Source: 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 510(k) database (decision fields), FDA recall and enforcement reports, and MAUDE; processed by 510(k) Report. Verify on FDA.gov · Methodology and accuracy.

Planning a device in JAQ? 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 JAQ device

  1. #1 K241853 Titanium Fletcher-Style Applicator Set Defined…score 14.9 · 3 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 has not posted a summary or statement for it, so its predicates are not known.

What descends from it? (35)

See all 35

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

NumberDeviceApplicantDecidedDescendants
K011690Mammosite Radiation Therapy System (RTS) Tray, Mammosite HDR Afterloader Accessories TrayProxima Therapeutics, Inc.200234
K032067Mammosite Radiation Therapy System (RTS) Tray, Mammosite HDR Afterloader Accessories TrayProxima Therapeutics, Inc.20049

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, K011690 (Proxima Therapeutics, Inc., 2002) has gone furthest, with 34 descendants of its own.

How does its category compare?

All JAQ devices

JAQ System, Applicator, Radionuclide, Remote-Controlled: FDA decisions, review times, recalls and adverse event reports over 20 years.

FDA decisions per year · JAQ

6in 2025

2007: 112008: 102009: 102010: 22011: 22012: 72013: 62014: 72015: 112016: 62017: 72018: 72019: 22020: 42022: 12023: 22024: 102025: 62026 (partial year): 2
2007high 11 (2007) · low 0 (2021)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · JAQ

91in 2025

2007: 48 days median2008: 34 days median2009: 27 days median2012: 89 days median2013: 100 days median2014: 116 days median2015: 183 days median2016: 154 days median2017: 229 days median2018: 252 days median2020: 62 days median2024: 126 days median2025: 91 days median
2007high 252 (2018) · low 27 (2009)2026

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

Recalls per year · JAQ

1in 2019

2008: 52009: 12010: 22011: 132012: 52013: 12019: 12026 (partial year): 3
2007high 13 (2011) · low 0 (2007)2026

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

Adverse event reports per year · JAQ

3in 2025

2007: 132008: 322009: 352010: 362011: 422012: 342013: 432014: 182015: 72016: 32017: 52018: 22019: 82020: 82021: 52022: 52023: 32024: 12025: 3
2007high 43 (2013) · low 1 (2024)2025

MAUDE reports naming product code JAQ, 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
20071148013
20081034532
20091027135
20102—236
20112—1342
2012789534
20136100143
20147116018
20151118307
2016615403
2017722905
2018725202
20192—18
202046208
20210—05
20221—05
20232—03
20241012601
202569103
20262—3—

More from Nucletron-Oldelft Corp.

11 FDA decisions under this applicant name. See the company

  • K953946Microselectron-HDR Version 2Nucletron-Oldelft Corp. · 1996
  • K953831N 800 HFNucletron-Oldelft Corp. · 1995
  • K925956Microselectron - HDR for Mobile EnvironmentNucletron-Oldelft Corp. · 1993
  • K926407Model Cole Tab-2 Table W/Model Cole SFD-2 SpotfilmNucletron-Oldelft Corp. · 1993
  • K921991Plato Radiation Therapy Planning SystemNucletron-Oldelft Corp. · 1992

Recent decisions in JAQ

The JAQ category page

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https://510kreport.com/device/K853912 · printed Nov 6, 2026

Cite this page

510(k) Report. “K853912: Microselection Interstitial Remote Afterload Sys.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K853912

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Record history
  • FDA decision record loaded May 2, 2026
  • Lineage and recalls computed Nov 3, 2026
  • Page last updated Nov 3, 2026