510(k) · Cleared
ClearedOyster ACIF Cage
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Silony Medical GmbH · ODP Intervertebral Fusion Device With Bone Graft, Cervical
Cleared on Jun 13, 2019 as substantially equivalent to K162587 (Silony Medical GmbH, 2017) and 1 other predicate after a 265-day review. Its family tree reaches back 17 generations to 1984. 1 of the 136 devices in its family, counting itself, has a Class I recall.
- Decided
- Jun 13, 2019
- Review
- 265 days
- Class
- Class II
- Product code
- ODP
- Recalls
- None
- Predicates
- 2
Its longest line of descent runs back 17 generations to K841189 (1984). 135 ancestors in all. No later device cites it as a predicate yet. 1 of the 136 devices in this family, counting this one, has a Class I recall.
- Root · 17 generations backK841189 Oec/Rezaian Spinal FixatorOrthopedic Equipment Co., Inc. · 1984
- 13 generations between
- 3 generations backK143258 PLIF STS, TLIF STS, OLIF STS (Spinal Truss System)4Web, Inc. · 2015
- 2 generations backK170503 EIT Cellular Titanium Cervical Cage, EIT Cellular Titanium PLIF…Eit Emerging Implant Technologies GmbH · 2017 · Recalled
- 1 generation backK172888 EIT Cellular Titanium® Cervical Cages, EIT Cellular Titanium® PLIF…Eit Emerging Implant Technologies GmbH · 2017
- This deviceK182608 Oyster ACIF CageSilony Medical GmbH · 2019
Show all 17 generations
- Root · 17 generations backK841189 Oec/Rezaian Spinal FixatorOrthopedic Equipment Co., Inc. · 1984
- 16 generations backK990148 Stackable Cage SystemDepuy Motech Acromed · 1999
- 15 generations backK003043 Surgical Titanium Mesh SystemDepuyacromed · 2001
- 14 generations backK022793 Tetris Spinal ImplantSignus Medical, LLC · 2003
- 13 generations backK031757 Peek Tetris Spinal ImplantSignus Medical, LLC · 2003
- 12 generations backK041888 Curved Peek Tetris Spinal ImplantSignus Medizintechnik GmbH · 2004
- 11 generations backK042930 Spacevision Cage SystemSpine Vision, Inc. · 2004
- 10 generations backK051454 Aleutian Spacer SystemK2m, LLC · 2005
- 9 generations backK063399 Aleutian Spacer SystemK2m, Inc. · 2007
- 8 generations backK082698 Aleutian Ibf SystemK2m, Inc. · 2009
- 7 generations backK101302 Aleutian Ibf SystemK2m, Inc. · 2010
- 6 generations backK103169 AleuttianK2m, Inc. · 2011
- 5 generations backK130699 Aleutian Spinal SystemK2m, Inc. · 2013
- 4 generations backK133614 Aleutian Ibf SystemK2m, Inc. · 2014
- 3 generations backK143258 PLIF STS, TLIF STS, OLIF STS (Spinal Truss System)4Web, Inc. · 2015
- 2 generations backK170503 EIT Cellular Titanium Cervical Cage, EIT Cellular Titanium PLIF…Eit Emerging Implant Technologies GmbH · 2017 · Recalled
- 1 generation backK172888 EIT Cellular Titanium® Cervical Cages, EIT Cellular Titanium® PLIF…Eit Emerging Implant Technologies GmbH · 2017
- This deviceK182608 Oyster ACIF CageSilony Medical GmbH · 2019
Class I recalls in this family
- K073202 Ardis Spacer4 generations back · 2008
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −17 | K841189 | Oec/Rezaian Spinal Fixator | Orthopedic Equipment Co., Inc. | 1984 | — |
| −16 | K990148 | Stackable Cage System | Depuy Motech Acromed | 1999 | — |
| −15 | K003043 | Surgical Titanium Mesh System | Depuyacromed | 2001 | — |
| −14 | K022793 | Tetris Spinal Implant | Signus Medical, LLC | 2003 | — |
| −13 | K031757 | Peek Tetris Spinal Implant | Signus Medical, LLC | 2003 | — |
| −12 | K041888 | Curved Peek Tetris Spinal Implant | Signus Medizintechnik GmbH | 2004 | — |
| −11 | K042930 | Spacevision Cage System | Spine Vision, Inc. | 2004 | — |
| −10 | K051454 | Aleutian Spacer System | K2m, LLC | 2005 | — |
| −9 | K063399 | Aleutian Spacer System | K2m, Inc. | 2007 | — |
| −8 | K082698 | Aleutian Ibf System | K2m, Inc. | 2009 | — |
| −7 | K101302 | Aleutian Ibf System | K2m, Inc. | 2010 | — |
| −6 | K103169 | Aleuttian | K2m, Inc. | 2011 | — |
| −5 | K130699 | Aleutian Spinal System | K2m, Inc. | 2013 | — |
| −4 | K133614 | Aleutian Ibf System | K2m, Inc. | 2014 | — |
| −3 | K143258 | PLIF STS, TLIF STS, OLIF STS (Spinal Truss System) | 4Web, Inc. | 2015 | — |
| −2 | K170503 | EIT Cellular Titanium Cervical Cage, EIT Cellular Titanium PLIF Cages, EIT… | Eit Emerging Implant Technologies GmbH | 2017 | 2 |
| −1 | K172888 | EIT Cellular Titanium® Cervical Cages, EIT Cellular Titanium® PLIF Cages, EIT… | Eit Emerging Implant Technologies GmbH | 2017 | — |
| 0 (this device) | K182608 | Oyster ACIF Cage | Silony Medical GmbH | 2019 | — |
Other ancestors by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 1996 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 10 | 0 |
| 2002 | 8 | 0 |
| 2003 | 11 | 0 |
| 2004 | 13 | 0 |
| 2005 | 10 | 0 |
| 2006 | 2 | 0 |
| 2007 | 10 | 0 |
| 2008 | 17 | 1 |
| 2009 | 10 | 0 |
| 2010 | 2 | 0 |
| 2011 | 9 | 0 |
| 2012 | 1 | 0 |
| 2013 | 3 | 0 |
| 2014 | 4 | 0 |
| 2015 | 1 | 0 |
| 2017 | 2 | 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.
1 device in this family has a Class I recall. 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 ODP device
- #1 K222276 CONDUIT Cages; FIBERGRAFT BG Puttyscore 53.4 · 25 generations · no Class I recall
- #2 Held for the reportin the report
- #3 Held for the reportin the report
What was it cleared against? (2)
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 |
|---|---|---|---|
| * | K162587 | Roccia® AcifSummary page 5…Number Trade or Proprietary or Manufacturer Predicate Model Name Type K162587 ROCCIA® ACIF Silony Medical GmBH Primary K172888 EIT Cellular Titanium… | 2017 |
| * | K172888 | EIT Cellular Titanium® Cervical Cages, EIT Cellular Titanium® PLIF Cages, EIT Cellular…Summary page 5…Model Name Type K162587 ROCCIA® ACIF Silony Medical GmBH Primary K172888 EIT Cellular Titanium® EIT Emerging Implant Additional Cervical Cage… | 2017 |
What descends from it?
No later submission names this one as a predicate yet.
Has anything in its family been recalled? (1 Class I)
No FDA recall names this device.
Relatives with a Class I recall
Class I is FDA’s most serious recall class. A recall in the family tree is context for this device, not evidence about it.
- K073202Ardis SpacerAbbott Spine, Inc. · 2008 · 4 generations back · ◆ in the 2008 ancestors bar of FIG. 11 Class I recall
What does this lineage say?
- The line of descent spans 35 years and passes through 11 companies; a new generation was cleared every 1.3 years on median.
- 19 of the 135 ancestors have a recall of any class; 1 has a Class I recall.
How does its category compare?
All ODP devicesODP Intervertebral Fusion Device With Bone Graft, Cervical: FDA decisions, review times, recalls and adverse event reports over 20 years. 2019, this device’s year, is highlighted.
FDA decisions per year · ODP
11in 2025
2026 to Oct 25, outlined.
Median 510(k) review, days · ODP
87in 2025
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · ODP
2in 2025
Class I (0 since 2007) Class II/III not classified
Adverse event reports per year · ODP
57in 2025
MAUDE reports naming product code ODP, 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 | 8 | 89 | 0 | 2 |
| 2009 | 12 | 127 | 1 | 21 |
| 2010 | 9 | 151 | 0 | 54 |
| 2011 | 25 | 113 | 1 | 38 |
| 2012 | 17 | 93 | 0 | 92 |
| 2013 | 18 | 187 | 1 | 78 |
| 2014 | 26 | 118 | 0 | 43 |
| 2015 | 24 | 180 | 0 | 51 |
| 2016 | 17 | 112 | 0 | 37 |
| 2017 | 33 | 104 | 0 | 39 |
| 2018 | 25 | 133 | 0 | 51 |
| 2019 | 22 | 92 | 0 | 141 |
| 2020 | 14 | 89 | 1 | 86 |
| 2021 | 18 | 121 | 0 | 161 |
| 2022 | 12 | 92 | 0 | 50 |
| 2023 | 34 | 165 | 0 | 36 |
| 2024 | 10 | 76 | 0 | 55 |
| 2025 | 11 | 87 | 2 | 57 |
| 2026 | 19 | 117 | 0 | — |
What is it indicated for?
The Oyster ACIF Cage is indicated for intervertebral body fusion of the spine in skeletally mature patients. The Oyster ACIF Cage is intended for use for anterior cervical interbody fusion in patients with cervical disc disease (DDD) at up to two contiguous levels from C2 to T1. The System is intended to be used with supplemental fixation; the Oyster ACIF Cage device is required to be used with an anterior cervical plate as the form of supplemental…
Read the full statement (119 words)
The Oyster ACIF Cage is indicated for intervertebral body fusion of the spine in skeletally mature patients. The Oyster ACIF Cage is intended for use for anterior cervical interbody fusion in patients with cervical disc disease (DDD) at up to two contiguous levels from C2 to T1. The System is intended to be used with supplemental fixation; the Oyster ACIF Cage device is required to be used with an anterior cervical plate as the form of supplemental fixation. The System is intended for use with autogenous and/or allogeneic bone graft comprised of cancellous and/or corticocancellous bone graft to facilitate fusion. The cervical devices are to be used in patients who have had at least six weeks of non-operative treatment.
Indications for use as stated in the FDA summary.
https://510kreport.com/device/K182608 · printed Nov 6, 2026
Cite this page
510(k) Report. “K182608: Oyster ACIF Cage.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K182608
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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