510(k) Report

510(k) · Cleared

Cleared

Accin Unipolar Head System

K080539510(k) TraditionalCleared Jun 2, 200896-day reviewClass II21 CFR 888.3350

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

Accelerated Innovation, LLC · JDI Prosthesis, Hip, Semi-Constrained, Metal/Polymer, Cemented

Cleared on Jun 2, 2008 as substantially equivalent to K952461 (Stelkast Company, 1995) after a 96-day review. Its family tree reaches back 1 generation to 1995.

Decided
Jun 2, 2008
Review
96 days
Class
Class II
Product code
JDI
Recalls
None
Predicates
1

Its longest line of descent runs back 1 generation to K952461 (1995). No later device cites it as a predicate yet.

K952461 · Endo Prosthesis Femoral Head · Stelkast Company · 19951995200020052010
K952461 · Endo Prosthesis Femoral Head · Stelkast Company · 19950
  1. Root · 1 generation backK952461 Endo Prosthesis Femoral HeadStelkast Company · 1995
  2. This deviceK080539 Accin Unipolar Head SystemAccelerated Innovation, LLC · 2008
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
−1K952461Endo Prosthesis Femoral HeadStelkast Company1995—
0 (this device)K080539Accin Unipolar Head SystemAccelerated Innovation, LLC2008—
FIG. 1 — Lineage of K080539, 1995–2008Source: 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 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 JDI? 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 JDI device

  1. #1 K253515 Zimmer Biomet OSS™ Orthopedic Salvage System…score 15.2 · 12 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
*K952461Endo Prosthesis Femoral Head
Summary page 1
…mi-constrained, Metal/polymer, Cemented, 21 CFR 888.3350, Class II Predicate Device: Stelkast Endo Prosthesis Femoral Head - K952461 Device Description: The AccinTM Unipolar Head System consists of a cobalt chrome modular endo prosthesis fem…
Stelkast Company1995—

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.

What does this lineage say?

  • Its one ancestor has no recall.

How does its category compare?

All JDI devices

JDI Prosthesis, Hip, Semi-Constrained, Metal/Polymer, Cemented: FDA decisions, review times, recalls and adverse event reports over 20 years. 2008, this device’s year, is highlighted.

FDA decisions per year · JDI

1in 2025

2007: 32008: 52009: 32011: 22012: 42013: 32014: 32015: 32016: 42017: 12018: 12019: 22020: 72021: 32022: 32023: 22024: 32025: 12026 (partial year): 2
2007high 7 (2020) · low 0 (2010)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · JDI

59in 2024

2007: 81 days median2008: 96 days median2009: 65 days median2012: 167 days median2013: 176 days median2014: 98 days median2015: 190 days median2016: 166 days median2020: 247 days median2021: 162 days median2022: 69 days median2024: 59 days median
2007high 247 (2020) · low 59 (2024)2026

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

Recalls per year · JDI

1in 2025

2007: 262008: 62009: 32010: 32011: 52012: 42013: 112014: 32015: 12016: 52017: 52018: 12019: 12020: 772025: 1
2007high 77 (2020) · low 0 (2021)2026

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

Adverse event reports per year · JDI

1,644in 2025

2007: 6962008: 8102009: 9642010: 2,0402011: 3,1602012: 5,1222013: 5,2062014: 4,9682015: 4,9062016: 3,9952017: 6,1352018: 6,7282019: 7,4072020: 4,0152021: 3,1702022: 1,9782023: 1,6352024: 1,8212025: 1,644
2007high 7,407 (2019) · low 696 (2007)2025

MAUDE reports naming product code JDI, 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
200738126696
20085966810
20093653964
20100—32,040
20112—53,160
2012416745,122
20133176115,206
201439834,968
2015319014,906
2016416653,995
20171—56,135
20181—16,728
20192—17,407
20207247774,015
2021316203,170
202236901,978
20232—01,635
202435901,821
20251—11,644
20262—0—

What is it indicated for?

The AccinTM Unipolar Head is intended to be implanted for use in the reconstruction of the femoral portion of severely disabled and / or very painful hip joints resulting from:

Osteoarthritis;

Rheumatoid Arthritis;

Traumatic Arthritis;

Avascular Necrosis;

The device is only for use where sufficient sound bone to seat the prosthesis is present and for use with the Accin Hip Stems.

Indications for use as stated in the FDA summary.

Cite this page

510(k) Report. “K080539: Accin Unipolar Head System.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K080539

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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