510(k) · Cleared
ClearedDisposable Semi Automatic Biopsy Instrument
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Suzhou Leapmed Healthcare Corporation · KNW Instrument, Biopsy
Cleared on Jul 6, 2022 as substantially equivalent to K160316 (M.D.L. S.R.L., 2016) after a 306-day review. Its family tree reaches back 4 generations to 1993.
- Decided
- Jul 6, 2022
- Review
- 306 days
- Class
- Class II
- Product code
- KNW
- Recalls
- None
- Predicates
- 1
Its longest line of descent runs back 4 generations to K922939 (1993). 7 ancestors in all. No later device cites it as a predicate yet.
- Root · 4 generations backK922939 Bard Monopty Disposable Core Biopsy Isnt. W/ Cent.C.R. Bard, Inc. · 1993
- 3 generations backK133948 Bard (R) Monopty (R) Disposable Core Biopsy Instrument, Bard (R)…Bard Peripheral Vascular, Inc. · 2014 · Recalled
- 2 generations backK141552 Achieve Programmable Auomated Biopsy SystemsCare Fusion · 2014
- 1 generation backK160316 SemiCut Semi-automatic Biopsy Needle, Themy Automatic Disposable…M.D.L. S.R.L. · 2016 · Recalled
- This deviceK212820 Disposable Semi Automatic Biopsy InstrumentSuzhou Leapmed Healthcare Corporation · 2022
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −4 | K922939 | Bard Monopty Disposable Core Biopsy Isnt. W/ Cent. | C.R. Bard, Inc. | 1993 | — |
| −3 | K133948 | Bard (R) Monopty (R) Disposable Core Biopsy Instrument, Bard (R) Max-Core (R)… | Bard Peripheral Vascular, Inc. | 2014 | 7 |
| −2 | K141552 | Achieve Programmable Auomated Biopsy Systems | Care Fusion | 2014 | — |
| −1 | K160316 | SemiCut Semi-automatic Biopsy Needle, Themy Automatic Disposable Biopsy… | M.D.L. S.R.L. | 2016 | 1 |
| 0 (this device) | K212820 | Disposable Semi Automatic Biopsy Instrument | Suzhou Leapmed Healthcare Corporation | 2022 | — |
Other ancestors by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 1994 | 1 | 0 |
| 1996 | 1 | 0 |
| 2000 | 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 |
|---|---|---|---|
| * | K160316 | SemiCut Semi-automatic Biopsy Needle, Themy Automatic Disposable Biopsy Device, Palium…Summary page 5…1 of page 6 K212820 SUZHOU LEAPMED HEALTHCARE CORPORATION 510(k) number: K160316 4.0 Device Description The disposable semi automatic biopsy instrument (hereinafter referred to as biopsy instrument) is divi… | 2016 |
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 29 years and passes through 5 companies; a new generation was cleared every 5.7 years on median.
- 2 of the 7 ancestors have a recall of any class.
- 3 other devices also cite its predicate K160316.
How does its category compare?
All KNW devicesKNW Instrument, Biopsy: FDA decisions, review times, recalls and adverse event reports over 20 years. 2022, this device’s year, is highlighted.
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 Disposable Semi Automatic Biopsy Instrument is intended for obtaining percutaneous or surgical histological core samples from soft tissues such as breast, kidney, liver, lung and various soft tissue masses. The device is not intended for use in bone.
The extent of histological 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 histological 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/K212820 · printed Nov 4, 2026
Cite this page
510(k) Report. “K212820: Disposable Semi Automatic Biopsy Instrument.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 4, 2026. https://510kreport.com/device/K212820
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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