510(k) Report

510(k) · Cleared

Cleared

Gel Mark IV

K040706510(k) SpecialCleared Apr 8, 200421-day reviewClass II21 CFR 878.4300

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

Senorx, Inc. · NEU Marker, Radiographic, Implantable

Cleared on Apr 8, 2004 after a 21-day review. FDA’s file for it is a 510(k) statement, which names no predicate. 2 later devices descend from it.

Decided
Apr 8, 2004
Review
21 days
Class
Class II
Product code
NEU
Recalls
None
Predicates
0

2 later devices descend from it, 1 citing it directly.

Descendants, by year cleared 2008: 2 descendants cleared200020052010201520202025
  1. This deviceK040706 Gel Mark IVSenorx, Inc. · 2004
  2. Descendant · cites it directly · 1 of its ownK080698 Gel Mark Ultracor Biopsy Site Marker, Model: Gmuc-17GGPSenorx, Inc. · 2008
  3. Descendant · 2 generations on · 0 of its ownK081170 Prostate Tissue MarkerSenorx, Inc. · 2008

Most influential descendants

Showing 2 of 2 · See all
  • K080698Gel Mark Ultracor Biopsy Site Marker, Model: Gmuc-17GGPSenorx, Inc. · 2008 · cites it directly1descendant
  • K081170Prostate Tissue MarkerSenorx, Inc. · 2008 · 2 generations on0descendants
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
0 (this device)K040706Gel Mark IVSenorx, Inc.2004—
+1K080698Gel Mark Ultracor Biopsy Site Marker, Model: Gmuc-17GGPSenorx, Inc.2008—
+2K081170Prostate Tissue MarkerSenorx, Inc.2008—

Descendants by year cleared

Year clearedDevicesWith a Class I recall
200820
FIG. 1 — Lineage of K040706, 2004–2008Source: 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 510(k) statement (indications), FDA recall and enforcement reports, and MAUDE; processed by 510(k) Report. Verify on FDA.gov · Methodology and accuracy.

Planning a device in NEU? 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 NEU device

  1. #1 K240042 MOLLI 2 Systemscore 14.4 · 12 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’s file for it is a 510(k) statement, which names no predicate.

What descends from it? (2)

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

NumberDeviceApplicantDecidedDescendants
K080698Gel Mark Ultracor Biopsy Site Marker, Model: Gmuc-17GGPSenorx, Inc.20081

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, K080698 (Senorx, Inc., 2008) has gone furthest, with 1 descendant of its own.

How does its category compare?

All NEU devices

NEU Marker, Radiographic, Implantable: FDA decisions, review times, recalls and adverse event reports over 20 years.

FDA decisions per year · NEU

5in 2025

2007: 42008: 72009: 42010: 52011: 32012: 32013: 72014: 32015: 72016: 22017: 42018: 82019: 52020: 32021: 32022: 22023: 42024: 102025: 52026 (partial year): 1
2007high 10 (2024) · low 2 (2016)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · NEU

99in 2025

2007: 94 days median2008: 107 days median2009: 70 days median2010: 69 days median2011: 145 days median2012: 120 days median2013: 49 days median2014: 48 days median2015: 111 days median2017: 115 days median2018: 89 days median2019: 149 days median2020: 169 days median2021: 46 days median2023: 136 days median2024: 267 days median2025: 99 days median
2007high 267 (2024) · low 46 (2021)2026

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

Recalls per year · NEU

2in 2025

2011: 12017: 12022: 12024: 2, 1 Class I2025: 22026 (partial year): 2
2007high 2 (2024) · low 0 (2007)2026

Class I (1 since 2007) Class II/III not classified

Adverse event reports per year · NEU

411in 2025

2007: 52008: 52009: 302010: 122011: 182012: 542013: 602014: 382015: 1202016: 562017: 692018: 662019: 582020: 452021: 822022: 1002023: 1422024: 2472025: 411
2007high 411 (2025) · low 5 (2007)2025

MAUDE reports naming product code NEU, 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
200749405
2008710705
2009470030
2010569012
20113145118
20123120054
2013749060
2014348038
201571110120
20162—056
20174115169
2018889066
20195149058
20203169045
2021346082
20222—1100
202341360142
2024102672 (1)247
20255992411
20261—2—

What is it indicated for?

The Gel Mark IV is intended to radiographically and sonographically mark breast tissue prior to or during a breast biopsy procedure.

Indications for use as stated in the FDA 510(k) statement.

Cite this page

510(k) Report. “K040706: Gel Mark IV.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K040706

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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