510(k) · Cleared
ClearedCook Sidearm Core Tissue Biopsy Device
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Urological, Inc. · KNW Instrument, Biopsy
Cleared on Jul 22, 2004 as substantially equivalent to K871390 (C.R. Bard, Inc., 1987) and 4 other predicates after a 43-day review. Its family tree reaches back 1 generation to 1986. 1 later device descends from it.
- Decided
- Jul 22, 2004
- Review
- 43 days
- Class
- Class II
- Product code
- KNW
- Recalls
- None
- Predicates
- 5
Its longest line of descent runs back 1 generation to K863385 (1986). 5 ancestors in all. 1 later device descends from it, 1 citing it directly.
Most influential descendants
Showing 1 of 1 · See all- K052435Pneumrx Family of Biopsy Needles and KitsPneumrx, Inc. · 2005 · cites it directly0descendants
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −1 | K863385 | (Roth)Spiral Rotating Prostatic Biopsy Needle | Cook Urological, Inc. | 1986 | — |
| 0 (this device) | K041544 | Cook Sidearm Core Tissue Biopsy Device | Urological, Inc. | 2004 | — |
| +1 | K052435 | Pneumrx Family of Biopsy Needles and Kits | Pneumrx, Inc. | 2005 | — |
Other ancestors by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 1987 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
Descendants by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 2005 | 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? (5)
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 |
|---|---|---|---|
| * | K871390 | Bard Biopty Biopsy SystemSummary page 1…Predicate Devices: The Cook® Sidearm Core Tissue Biopsy Device is comparable to existing predicate devices in distribution including the Magnum Biopsy System (K871390) manufactured by C.R. Bard, Incorporated, the EMS Biopsy Instrument (K930083) manufactured by Engineered Medical Systems,… | 1987 |
| * | K930083 | Ems Biopsy InstrumentSummary page 1…to existing predicate devices in distribution including the Magnum Biopsy System (K871390) manufactured by C.R. Bard, Incorporated, the EMS Biopsy Instrument (K930083) manufactured by Engineered Medical Systems, the High Speed Core Cut Biopsy Device (K905556) manufactured by BIP USA, Incorp… | 1993 |
| * | K905556 | High Speed Core Cut Biopsy GunSummary page 1…manufactured by C.R. Bard, Incorporated, the EMS Biopsy Instrument (K930083) manufactured by Engineered Medical Systems, the High Speed Core Cut Biopsy Device (K905556) manufactured by BIP USA, Incorporated, the Manan Pro-Mag Automatic Biopsy Device (K914874) manufactured by Manan Medical Pr… | 1991 |
| * | K914874 | Manan Pro-Mag Automatic Biopsy DeviceSummary page 1…y Engineered Medical Systems, the High Speed Core Cut Biopsy Device (K905556) manufactured by BIP USA, Incorporated, the Manan Pro-Mag Automatic Biopsy Device (K914874) manufactured by Manan Medical Products, Incorporated, and the (Roth) Spiral Rotating Prostatic Biopsy Needle (K863385), man… | 1992 |
| * | K863385 | (Roth)Spiral Rotating Prostatic Biopsy NeedleSummary page 1…e Manan Pro-Mag Automatic Biopsy Device (K914874) manufactured by Manan Medical Products, Incorporated, and the (Roth) Spiral Rotating Prostatic Biopsy Needle (K863385), manufactured by Cook Urological, Incorporated. Device Description: The Cook® Sidearm Core Tissue Biopsy Device/Set… | 1986 |
What descends from it? (1)
1 later device cites it directly; ranked here by how many devices descend from each in turn.
| Number | Device | Decided | Descendants |
|---|---|---|---|
| K052435 | Pneumrx Family of Biopsy Needles and Kits | 2005 | 0 |
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 Cook-® Sidearm Core Tissue Biopsy Device/Set is used as an automated biopsy instrument to obtain multiple cores of tissue sampling from sites including, but not limited to the prostate, kidney, liver, lung, breast, lymph nodes, and different tumors for histological evaluation.
Indications for use as stated in the FDA summary.
https://510kreport.com/device/K041544 · printed Nov 5, 2026
Cite this page
510(k) Report. “K041544: Cook Sidearm Core Tissue Biopsy Device.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 5, 2026. https://510kreport.com/device/K041544
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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