PMA · Approved
ApprovedActivitrax Models 8400, 8402, 8403
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Medtronic, Inc. · LWO Pulse-Generator, Single Chamber, Sensor Driven, Implantable
Approved on Jun 10, 1986 through premarket approval, which rests on the device’s own clinical evidence after a 326-day review.
- Decided
- Jun 10, 1986
- Review
- 326 days
- Class
- Class III
- Product code
- LWO
- Recalls
- None
PMA approvals rest on their own clinical evidence and do not claim a predicate, so this family tree starts here.
P850051 has 76 supplements since 1986: changes to the approved device, its labelling or its manufacturing, each approved separately.
PMA supplements approved per year
View FIG. 1 as a table
| Year | Supplements approved |
|---|---|
| 1986 | 3 |
| 1987 | 6 |
| 1988 | 7 |
| 1989 | 3 |
| 1990 | 6 |
| 1991 | 6 |
| 1992 | 2 |
| 1993 | 3 |
| 1994 | 3 |
| 1995 | 7 |
| 1996 | 1 |
| 1997 | 1 |
| 2000 | 1 |
| 2001 | 1 |
| 2002 | 1 |
| 2005 | 1 |
| 2006 | 3 |
| 2007 | 1 |
| 2008 | 4 |
| 2009 | 2 |
| 2010 | 2 |
| 2011 | 5 |
| 2012 | 1 |
| 2013 | 1 |
| 2014 | 1 |
| 2015 | 3 |
| 2025 | 1 |
Sources: FDA PMA database (decision fields and supplements), FDA recall and enforcement reports, and MAUDE; processed by 510(k) Report. Verify on FDA.gov · Methodology and accuracy.
Planning a device in LWO? A 510(k) Report weighs predicate choices, recall history and review times for a new device like this one.
- Candidate predicates for a device like this, rankedin the report
- Recall history across each candidate’s familyin the report
Does it have a predicate?
PMA decisions do not claim a predicate device.
What descends from it?
No later submission names this one as a predicate yet.
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.
How does its category compare?
All LWO devicesLWO Pulse-Generator, Single Chamber, Sensor Driven, Implantable: FDA decisions, review times, recalls and adverse event reports over 20 years.
FDA decisions per year · LWO
5in 2025
2026 to Oct 25, outlined.
Median 510(k) review, days · LWO
Too few LWO 510(k)s in any year since 2007 to give a median.
Recalls per year · LWO
No recall names LWO since 2007.
Adverse event reports per year · LWO
10in 2025
MAUDE reports naming product code LWO, 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 | 8 | — | 0 | 0 |
| 2008 | 10 | — | 0 | 1 |
| 2009 | 5 | — | 0 | 0 |
| 2010 | 7 | — | 0 | 0 |
| 2011 | 10 | — | 0 | 1 |
| 2012 | 1 | — | 0 | 2 |
| 2013 | 0 | — | 0 | 3 |
| 2014 | 0 | — | 0 | 3 |
| 2015 | 0 | — | 0 | 2 |
| 2016 | 1 | — | 0 | 1 |
| 2017 | 6 | — | 0 | 3 |
| 2018 | 5 | — | 0 | 1 |
| 2019 | 1 | — | 0 | 5 |
| 2020 | 3 | — | 0 | 16 |
| 2021 | 4 | — | 0 | 12 |
| 2022 | 3 | — | 0 | 5 |
| 2023 | 2 | — | 0 | 16 |
| 2024 | 1 | — | 0 | 10 |
| 2025 | 5 | — | 0 | 10 |
| 2026 | 2 | — | 0 | — |
https://510kreport.com/device/P850051 · printed Nov 6, 2026
Cite this page
510(k) Report. “P850051: Activitrax Models 8400, 8402, 8403.” Lineage record from FDA PMA data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/P850051
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Record history
- FDA decision record loaded May 2, 2026
- Page last updated Nov 3, 2026