510(k) · Cleared
ClearedSanarus Centrica Core Tissue Biopsy System
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Sanarus Medical, Inc. · KNW Instrument, Biopsy
Cleared on Jun 26, 2002 as substantially equivalent to K003528 (Endocare, Inc., 2001) after a 78-day review. Its family tree reaches back 1 generation to 2001. 11 later devices descend from it.
- Decided
- Jun 26, 2002
- Review
- 78 days
- Class
- Class II
- Product code
- KNW
- Recalls
- None
- Predicates
- 1
Its longest line of descent runs back 1 generation to K003528 (2001). 11 later devices descend from it, 1 citing it directly.
- Root · 1 generation backK003528 Sanarus Core Tissue Biopsy SystemEndocare, Inc. · 2001
- This deviceK021137 Sanarus Centrica Core Tissue Biopsy SystemSanarus Medical, Inc. · 2002
- Descendant · cites it directly · 10 of its ownK022879 Modification to Sanarus Centrica Core Tissue BiopsySanarus Medical, Inc. · 2002 · Recalled
- Descendant · 2 generations on · 9 of its ownK032506 Sanarus Centrica II Rotational Core Biopsy SystemSanarus Medical, Inc. · 2003
- Descendant · 3 generations on · 8 of its ownK042136 Sanarus Cassi Rotational Core Biopsy SystemSanarus Medical, Inc. · 2004
- Descendant · 4 generations on · 4 of its ownK051581 Sanarus Cassi II Rotational Core Biopsy System, Model CS2000Sanarus Medical, Inc. · 2005
- Descendant · 4 generations on · 3 of its ownK053151 Rubicor Magic Breast Biopsy DeviceRubicor Medical, Inc. · 2005
Showing 5 of 11 descendants. See all descendants
Descendants cleared per year
Most influential descendants
Showing 5 of 11 · See all- K022879Modification to Sanarus Centrica Core Tissue BiopsySanarus Medical, Inc. · 2002 · cites it directly10descendants
- K032506Sanarus Centrica II Rotational Core Biopsy SystemSanarus Medical, Inc. · 2003 · 2 generations on9descendants
- K042136Sanarus Cassi Rotational Core Biopsy SystemSanarus Medical, Inc. · 2004 · 3 generations on8descendants
- K051581Sanarus Cassi II Rotational Core Biopsy System, Model CS2000Sanarus Medical, Inc. · 2005 · 4 generations on4descendants
- K053151Rubicor Magic Breast Biopsy DeviceRubicor Medical, Inc. · 2005 · 4 generations on3descendants
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −1 | K003528 | Sanarus Core Tissue Biopsy System | Endocare, Inc. | 2001 | — |
| 0 (this device) | K021137 | Sanarus Centrica Core Tissue Biopsy System | Sanarus Medical, Inc. | 2002 | — |
| +1 | K022879 | Modification to Sanarus Centrica Core Tissue Biopsy | Sanarus Medical, Inc. | 2002 | 1 |
| +2 | K032506 | Sanarus Centrica II Rotational Core Biopsy System | Sanarus Medical, Inc. | 2003 | — |
| +3 | K042136 | Sanarus Cassi Rotational Core Biopsy System | Sanarus Medical, Inc. | 2004 | — |
| +4 | K051581 | Sanarus Cassi II Rotational Core Biopsy System, Model CS2000 | Sanarus Medical, Inc. | 2005 | — |
| +4 | K053151 | Rubicor Magic Breast Biopsy Device | Rubicor Medical, Inc. | 2005 | — |
Descendants by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 2002 | 1 | 0 |
| 2003 | 1 | 0 |
| 2004 | 1 | 0 |
| 2005 | 2 | 0 |
| 2007 | 1 | 0 |
| 2008 | 1 | 0 |
| 2013 | 1 | 0 |
| 2014 | 1 | 0 |
| 2016 | 1 | 0 |
| 2018 | 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 KNW? 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 KNW device
- #1 K260572 Marrow Marxmanscore 14.5 · 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 |
|---|---|---|---|
| * | K003528 | Sanarus Core Tissue Biopsy System Our reading of the summary gave K013528, FDA’s number for Crystal 5000 Phases Array TMJ Coil (Usa Instruments, Inc.). Corrected to the number one digit away whose FDA name carries the summary’s words for the device, “Sanarus Core Tissue Biopsy System”. | 2001 |
What descends from it? (11)
See all 111 later device cites it directly; ranked here by how many devices descend from each in turn.
| Number | Device | Decided | Descendants |
|---|---|---|---|
| K022879 | Modification to Sanarus Centrica Core Tissue Biopsy | 2002 | 10 |
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?
How does its category compare?
All KNW devicesKNW Instrument, Biopsy: FDA decisions, review times, recalls and adverse event reports over 20 years.
FDA decisions per year · KNW
12in 2025
2026 to Oct 25, outlined.
Median 510(k) review, days · KNW
178in 2025
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · KNW
1in 2024
Class I (4 since 2007) Class II/III not classified
Adverse event reports per year · KNW
1,667in 2025
MAUDE reports naming product code KNW, 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 | 6 | 94 | 1 | 766 |
| 2008 | 4 | 53 | 7 | 363 |
| 2009 | 6 | 35 | 3 | 351 |
| 2010 | 3 | 57 | 2 | 162 |
| 2011 | 10 | 64 | 5 | 67 |
| 2012 | 7 | 94 | 1 | 93 |
| 2013 | 3 | 100 | 1 (1) | 98 |
| 2014 | 8 | 95 | 3 | 193 |
| 2015 | 10 | 106 | 0 | 591 |
| 2016 | 9 | 127 | 5 | 297 |
| 2017 | 8 | 90 | 1 | 760 |
| 2018 | 7 | 71 | 0 | 1,012 |
| 2019 | 5 | 94 | 4 | 4,195 |
| 2020 | 8 | 92 | 0 | 5,120 |
| 2021 | 9 | 54 | 3 | 1,020 |
| 2022 | 8 | 203 | 3 | 535 |
| 2023 | 7 | 164 | 2 | 931 |
| 2024 | 5 | 114 | 1 | 1,283 |
| 2025 | 12 | 178 | 0 | 1,667 |
| 2026 | 7 | 29 | 4 (3) | — |
What is it indicated for?
The device is indicated for use in obtaining biopsies from soft tissues such as liver, kidney, prostate, spleen, lymph nodes and various soft tissue tumors. It is not intended for use in bone. The device is also indicated to provide breast tissue samples for diagnostic sampling of breast abnormalities. It is designed to provide breast tissue for histologic examination with partial or complete removal of the imaged abnormality. The extent of histologic…
Read the full statement (131 words)
The device is indicated for use in obtaining biopsies from soft tissues such as liver, kidney, prostate, spleen, lymph nodes and various soft tissue tumors. It is not intended for use in bone.
The device is also indicated to provide breast tissue samples for diagnostic sampling of breast abnormalities. It is designed to provide breast tissue for histologic examination with partial or complete removal of the imaged abnormality. The extent of histologic abnormality cannot be reliably determined from its mammographic appearance. Therefore, the extent of removal of the imaged evidence of an abnormality does not predict the extent of removal of a histologic abnormality (e.g., malignancy). When the sampled abnormality is not histologically benign, it is essential that the tissue margins be examined for completeness of removal using standard surgical procedures.
Indications for use as stated in the FDA summary.
https://510kreport.com/device/K021137 · printed Nov 4, 2026
Cite this page
510(k) Report. “K021137: Sanarus Centrica Core Tissue Biopsy System.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 4, 2026. https://510kreport.com/device/K021137
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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