510(k) · Cleared
ClearedTHE Cover
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Purgo Biologics, Inc. · NPL Barrier, Animal Source, Intraoral
Cleared on Oct 6, 2023 as substantially equivalent to K192042 (Geistlich Pharma AG, 2019) after a 267-day review. Its family tree reaches back 9 generations to 1995.
- Decided
- Oct 6, 2023
- Review
- 267 days
- Class
- Class II
- Product code
- NPL
- Recalls
- None
- Predicates
- 1
Its longest line of descent runs back 9 generations to K924408 (1995). 26 ancestors in all, the oldest K871773 (1987). No later device cites it as a predicate yet.
- Root · 9 generations backK924408 Colla-Tec Absorbable Collagen MembraneColla-Tec, Inc. · 1995 · Recalled
- 5 generations between
- 3 generations backK102531 MucograftEd. Geistlich Soehne AG Fur Chemische Industrie · 2010
- 2 generations backK140518 Geistlich Mucograft: 15 X 20 MM, 20 X 30 MM, 8 MM DiameterGeistlich Pharma AG · 2014
- 1 generation backK192042 Geistlich Bio-Gide, Geistlich Bio-Gide Shape, Geistlich Bio-Gide…Geistlich Pharma AG · 2019
- This deviceK230091 THE CoverPurgo Biologics, Inc. · 2023
Show all 9 generations
- Root · 9 generations backK924408 Colla-Tec Absorbable Collagen MembraneColla-Tec, Inc. · 1995 · Recalled
- 8 generations backK992216 Biomend Extend Absorbable Collagen Membrane, Biomend Absorbable…Integra Lifesciences Corp. · 1999 · Recalled
- 7 generations backK042197 Bio-Gide Resorbable Bilayer Membrane for Guided Tissue and Bone…Ed. Geistlich Soehne AG Fuer Chemische Industrie · 2004
- 6 generations backK050446 Bio-Gide Resorbable Bilayer Membrane for Guided Tissue and BoneEd. Geistlich Soehne AG Fuer Chemische Industrie · 2005
- 5 generations backK061244 MucograftEd. Geistlich Soehne AG Fuer Chemische Industrie · 2006
- 4 generations backK073711 Mucograft Collagen MatrixEd. Geistlich Soehne AG Fuer Chemische Industrie · 2008
- 3 generations backK102531 MucograftEd. Geistlich Soehne AG Fur Chemische Industrie · 2010
- 2 generations backK140518 Geistlich Mucograft: 15 X 20 MM, 20 X 30 MM, 8 MM DiameterGeistlich Pharma AG · 2014
- 1 generation backK192042 Geistlich Bio-Gide, Geistlich Bio-Gide Shape, Geistlich Bio-Gide…Geistlich Pharma AG · 2019
- This deviceK230091 THE CoverPurgo Biologics, Inc. · 2023
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −9 | K924408 | Colla-Tec Absorbable Collagen Membrane | Colla-Tec, Inc. | 1995 | 2 |
| −8 | K992216 | Biomend Extend Absorbable Collagen Membrane, Biomend Absorbable Collagen… | Integra Lifesciences Corp. | 1999 | 1 |
| −7 | K042197 | Bio-Gide Resorbable Bilayer Membrane for Guided Tissue and Bone Regeneration | Ed. Geistlich Soehne AG Fuer Chemische Industrie | 2004 | — |
| −6 | K050446 | Bio-Gide Resorbable Bilayer Membrane for Guided Tissue and Bone | Ed. Geistlich Soehne AG Fuer Chemische Industrie | 2005 | — |
| −5 | K061244 | Mucograft | Ed. Geistlich Soehne AG Fuer Chemische Industrie | 2006 | — |
| −4 | K073711 | Mucograft Collagen Matrix | Ed. Geistlich Soehne AG Fuer Chemische Industrie | 2008 | — |
| −3 | K102531 | Mucograft | Ed. Geistlich Soehne AG Fur Chemische Industrie | 2010 | — |
| −2 | K140518 | Geistlich Mucograft: 15 X 20 MM, 20 X 30 MM, 8 MM Diameter | Geistlich Pharma AG | 2014 | — |
| −1 | K192042 | Geistlich Bio-Gide, Geistlich Bio-Gide Shape, Geistlich Bio-Gide Compressed… | Geistlich Pharma AG | 2019 | — |
| 0 (this device) | K230091 | THE Cover | Purgo Biologics, Inc. | 2023 | — |
Other ancestors by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 1987 | 1 | 0 |
| 1992 | 1 | 0 |
| 1995 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 2000 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 1 | 0 |
| 2004 | 1 | 0 |
| 2008 | 1 | 0 |
| 2010 | 1 | 0 |
| 2011 | 2 | 0 |
| 2013 | 1 | 0 |
| 2017 | 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 NPL? 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 NPL device
- #1 K212463 Geistlich Bio-Gide, Geistlich Bio-Gide Shape…score 14.5 · 9 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 |
|---|---|---|---|
| * | K192042 | Geistlich Bio-Gide, Geistlich Bio-Gide Shape, Geistlich Bio-Gide Compressed, Geistlich…Summary page 5…r, Animal Source, Intraoral Device class : Class II Classification Panel : Dental 3. Predicate Device Primary predicate device K192042 Bio-Gide® 510(k) Summary Page 1 of 6 === Page 6 =… | 2019 |
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?
- The line of descent spans 28 years and passes through 6 companies; a new generation was cleared every 3.7 years on median.
- 2 of the 26 ancestors have a recall of any class.
- 2 other devices also cite its predicate K192042.
How does its category compare?
All NPL devicesNPL Barrier, Animal Source, Intraoral: FDA decisions, review times, recalls and adverse event reports over 20 years. 2023, this device’s year, is highlighted.
FDA decisions per year · NPL
5in 2025
2026 to Oct 25, outlined.
Median 510(k) review, days · NPL
132in 2025
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · NPL
6in 2019
Class I (0 since 2007) Class II/III not classified
Adverse event reports per year · NPL
39in 2025
MAUDE reports naming product code NPL, 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 | 1 | — | 0 | 0 |
| 2008 | 4 | 172 | 0 | 0 |
| 2009 | 3 | 193 | 0 | 0 |
| 2010 | 2 | — | 0 | 0 |
| 2011 | 4 | 286 | 0 | 0 |
| 2012 | 0 | — | 3 | 3 |
| 2013 | 2 | — | 0 | 2 |
| 2014 | 5 | 140 | 0 | 3 |
| 2015 | 1 | — | 0 | 5 |
| 2016 | 3 | 184 | 0 | 9 |
| 2017 | 3 | 200 | 0 | 18 |
| 2018 | 1 | — | 0 | 14 |
| 2019 | 1 | — | 6 | 22 |
| 2020 | 2 | — | 0 | 8 |
| 2021 | 2 | — | 0 | 11 |
| 2022 | 3 | 290 | 0 | 19 |
| 2023 | 2 | — | 0 | 5 |
| 2024 | 3 | 263 | 0 | 20 |
| 2025 | 5 | 132 | 0 | 39 |
| 2026 | 0 | — | 0 | — |
What is it indicated for?
THE Cover is recommended for:
- Covering of immediate or delayed extraction socket to enhance preservation of the alveolar ridge.
Indications for use as stated in the FDA summary.
https://510kreport.com/device/K230091 · printed Nov 4, 2026
Cite this page
510(k) Report. “K230091: THE Cover.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 4, 2026. https://510kreport.com/device/K230091
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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