510(k) · Cleared
ClearedMagseed Magnetic Marker System
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Endomagnetics Ltd., · PBY Temporary Tissue Marker
Cleared on Jan 13, 2017 as substantially equivalent to K153044 (Endomagnetics Ltd.,, 2016) after a 28-day review. Its family tree reaches back 8 generations to 2003. 12 later devices descend from it.
- Decided
- Jan 13, 2017
- Review
- 28 days
- Class
- Class II
- Product code
- PBY
- Recalls
- None
- Predicates
- 1
Its longest line of descent runs back 8 generations to K023694 (2003). 22 ancestors in all, the oldest K970817 (1997). 12 later devices descend from it, 4 citing it directly.
- Root · 8 generations backK023694 Bio-Mark Resorbable Biopsy Site Marker and Bio-Mark Permanent Biopsy…Biopsy Sciences, LLC · 2003
- 7 generations backK051421 Inter V Brand V-Mark Breast Biopsy Site Marker with Titanium AnchorMedical Device Technologies, Inc. · 2005
- 6 generations backK053518 Interv Brand V-Mark Breast Biopsy Site Marker with Titanium AnchorMedical Device Technologies, Inc. · 2006
- 5 generations backK060769 Hydromark Biopsy Site MarkerBiopsy Sciences, LLC · 2006
- 4 generations backK083006 Biopsy Sciences, Inc., Hydromark Breast Biopsy Site MarkerBiopsy Sciences, LLC · 2009
- 3 generations backK090501 Biopsy Sciences Hydromark Breast Biopsy Site Marker, Models…Biopsy Sciences, LLC · 2009
- 2 generations backK120804 Cianna Medical Tissue Marker and Delivery SystemCianna Medical · 2013
- 1 generation backK153044 Sentimag System, Sentimark Magnetic Marker SystermEndomagnetics Ltd., · 2016
- This deviceK163541 Magseed Magnetic Marker SystemEndomagnetics Ltd., · 2017
- Descendant · cites it directly · 5 of its ownK210600 MOLLIMolli Surgical, Inc. · 2021
- Descendant · 2 generations on · 4 of its ownK223107 MOLLI 2Molli Surgical, Inc. · 2023
- Descendant · 3 generations on · 3 of its ownK231579 MOLLI 2Molli Surgical, Inc. · 2023 · Recalled
- Descendant · cites it directly · 2 of its ownK200734 Sirius Pintuition Seed, Sirius Pintuition Probe, Sirius Pintuition…Sirius Medical Systems B.V. · 2021
- Descendant · cites it directly · 2 of its ownK173587 Magseed Magnetic Marker SysttemEndomagnetics Ltd., · 2018
Showing 5 of 12 descendants. See all descendants
Descendants cleared per year
Most influential descendants
Showing 5 of 12 · See all- K210600MOLLIMolli Surgical, Inc. · 2021 · cites it directly5descendants
- K223107MOLLI 2Molli Surgical, Inc. · 2023 · 2 generations on4descendants
- K231579MOLLI 2Molli Surgical, Inc. · 2023 · 3 generations on3descendants
- K200734Sirius Pintuition Seed, Sirius Pintuition Probe, Sirius Pintuition Base UnitSirius Medical Systems B.V. · 2021 · cites it directly2descendants
- K173587Magseed Magnetic Marker SysttemEndomagnetics Ltd., · 2018 · cites it directly2descendants
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −8 | K023694 | Bio-Mark Resorbable Biopsy Site Marker and Bio-Mark Permanent Biopsy Site Marker | Biopsy Sciences, LLC | 2003 | — |
| −7 | K051421 | Inter V Brand V-Mark Breast Biopsy Site Marker with Titanium Anchor | Medical Device Technologies, Inc. | 2005 | — |
| −6 | K053518 | Interv Brand V-Mark Breast Biopsy Site Marker with Titanium Anchor | Medical Device Technologies, Inc. | 2006 | — |
| −5 | K060769 | Hydromark Biopsy Site Marker | Biopsy Sciences, LLC | 2006 | — |
| −4 | K083006 | Biopsy Sciences, Inc., Hydromark Breast Biopsy Site Marker | Biopsy Sciences, LLC | 2009 | — |
| −3 | K090501 | Biopsy Sciences Hydromark Breast Biopsy Site Marker, Models 4005-02-15-T1… | Biopsy Sciences, LLC | 2009 | — |
| −2 | K120804 | Cianna Medical Tissue Marker and Delivery System | Cianna Medical | 2013 | — |
| −1 | K153044 | Sentimag System, Sentimark Magnetic Marker Systerm | Endomagnetics Ltd., | 2016 | — |
| 0 (this device) | K163541 | Magseed Magnetic Marker System | Endomagnetics Ltd., | 2017 | — |
| +1 | K210600 | MOLLI | Molli Surgical, Inc. | 2021 | — |
| +2 | K223107 | MOLLI 2 | Molli Surgical, Inc. | 2023 | — |
| +3 | K231579 | MOLLI 2 | Molli Surgical, Inc. | 2023 | 1 |
| +1 | K200734 | Sirius Pintuition Seed, Sirius Pintuition Probe, Sirius Pintuition Base Unit | Sirius Medical Systems B.V. | 2021 | — |
| +1 | K173587 | Magseed Magnetic Marker Systtem | Endomagnetics Ltd., | 2018 | — |
Other ancestors by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 1997 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 0 |
| 2004 | 2 | 0 |
| 2007 | 1 | 0 |
| 2008 | 1 | 0 |
| 2010 | 2 | 0 |
| 2011 | 2 | 0 |
Descendants by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 2018 | 1 | 0 |
| 2021 | 2 | 0 |
| 2022 | 1 | 0 |
| 2023 | 4 | 0 |
| 2024 | 3 | 0 |
| 2025 | 1 | 0 |
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 PBY? 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 PBY device
- #1 K222643 Sirius Pintuition Seed, Sirius Pintuition…score 9.9 · 10 generations · no Class I recall
- #2 Held for the reportin the report
- #3 Held for the reportin the report
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.
| Type | Number | Device | Decided |
|---|---|---|---|
| * | K153044 | Sentimag System, Sentimark Magnetic Marker SystermSummary page 5…21 CFR 878.4300 Device Classification: Class II Product Code: PBY 1.3 PREDICATE DEVICE Sentimag System, Sentimark Magnetic Marker System (K153044). 1.4 DESCRIPTION OF DEVICE The Magseed Magnetic Marker is identical to the Sentimark Magentic marker described in K153044.… | 2016 |
What descends from it? (12)
See all 124 later devices cite it directly; ranked here by how many devices descend from each in turn.
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 14 years and passes through 4 companies; a new generation was cleared every 2.5 years on median.
- 3 of the 22 ancestors have a recall of any class.
- Of its descendants, K210600 (Molli Surgical, Inc., 2021) has gone furthest, with 5 descendants of its own.
- 2 other devices also cite its predicate K153044.
How does its category compare?
All PBY devicesPBY Temporary Tissue Marker: FDA decisions, review times, recalls and adverse event reports over 20 years. 2017, this device’s year, is highlighted.
FDA decisions per year · PBY
1in 2023
2026 to Oct 25, outlined.
Median 510(k) review, days · PBY
Too few PBY 510(k)s in any year since 2007 to give a median.
Recalls per year · PBY
No recall names PBY since 2007.
Adverse event reports per year · PBY
1in 2024
MAUDE reports naming product code PBY, not matched to any one device; reports are not rates.
View these four charts as a table
| Year | Decisions | Median 510(k) review, days | Recalls (Class I) | MAUDE reports |
|---|---|---|---|---|
| 2007 | 0 | — | 0 | 0 |
| 2008 | 0 | — | 0 | 0 |
| 2009 | 0 | — | 0 | 0 |
| 2010 | 0 | — | 0 | 0 |
| 2011 | 0 | — | 0 | 0 |
| 2012 | 0 | — | 0 | 0 |
| 2013 | 1 | — | 0 | 0 |
| 2014 | 0 | — | 0 | 0 |
| 2015 | 0 | — | 0 | 0 |
| 2016 | 1 | — | 0 | 0 |
| 2017 | 2 | — | 0 | 1 |
| 2018 | 0 | — | 0 | 0 |
| 2019 | 0 | — | 0 | 1 |
| 2020 | 0 | — | 0 | 0 |
| 2021 | 1 | — | 0 | 0 |
| 2022 | 1 | — | 0 | 0 |
| 2023 | 1 | — | 0 | 1 |
| 2024 | 0 | — | 0 | 1 |
| 2025 | 0 | — | 0 | 0 |
| 2026 | 0 | — | 0 | — |
What is it indicated for?
The Endomag Magseed Magnetic Marker is intended to be placed percutaneously in the breast to mark temporarily (< 30 days) a lumpectomy site intended for surgical removal. Using imaging guidance (such as ultrasound or radiography) or aided by non-imaging guidance (Endomag Sentimag® System) the Endomag Magseed Magnetic Marker is located and surgically removed with the target tissue.
The Endomag Sentimag® System is intended for the non-imaging detection and localization of the "Endomag Magseed Magnetic Marker" that has been implanted in a lumpectomy site intended for surgical removal.
Indications for use as stated in the FDA summary.
https://510kreport.com/device/K163541 · printed Nov 4, 2026
Cite this page
510(k) Report. “K163541: Magseed Magnetic Marker System.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 4, 2026. https://510kreport.com/device/K163541
Report an extraction error
Are you the manufacturer?
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