510(k) · Cleared
ClearedManan Chiba PTC Needle
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Manan Manufacturing Co., Inc. · KNW Instrument, Biopsy
Cleared on Jun 21, 1985 after a 56-day review. FDA has not posted a summary or statement for it, so its predicates are not known. 1 of the 21 devices in its family, counting itself, has a Class I recall. 20 later devices descend from it.
- Decided
- Jun 21, 1985
- Review
- 56 days
- Class
- Class II
- Product code
- KNW
- Recalls
- None
- Predicates
- 0
20 later devices descend from it, 2 citing it directly. 1 of the 21 devices in this family, counting this one, has a Class I recall.
- This deviceK851838 Manan Chiba PTC NeedleManan Manufacturing Co., Inc. · 1985
- Descendant · cites it directly · 11 of its ownK021847 Biopsy Sciences, LLC. Maxi-Cell Biopsy NeedlesBiopsy Sciences, LLC · 2002
- Descendant · 2 generations on · 9 of its ownK142688 Echotip Procore HD Ultrasound Biopsy NeedleCook Ireland, Ltd. · 2014
- Descendant · cites it directly · 8 of its ownK980122 Manan Soft Tissue Biopsy NeedlesMedical Device Technologies, Inc. · 1998
- Descendant · 3 generations on · 7 of its ownK160229 Echotip Ultra Endobronchial High Definition Ultrasound Needle…Cook Ireland, Ltd. · 2016
- Descendant · 3 generations on · 2 of its ownK210476 EchoTip Ultra Endoscopic Ultrasound Needle, EchoTip ProCore HD…Cook Ireland, Ltd. · 2021 · Recalled
Showing 5 of 20 descendants. See all descendants
Descendants cleared per year
Class I recalls in this family
- K193517 ViziShot 2 FLEX4 generations on · 2020
Most influential descendants
Showing 5 of 20 · See all- K021847Biopsy Sciences, LLC. Maxi-Cell Biopsy NeedlesBiopsy Sciences, LLC · 2002 · cites it directly11descendants
- K142688Echotip Procore HD Ultrasound Biopsy NeedleCook Ireland, Ltd. · 2014 · 2 generations on9descendants
- K980122Manan Soft Tissue Biopsy NeedlesMedical Device Technologies, Inc. · 1998 · cites it directly8descendants
- K160229Echotip Ultra Endobronchial High Definition Ultrasound Needle, Echotip Procore…Cook Ireland, Ltd. · 2016 · 3 generations on7descendants
- K210476EchoTip Ultra Endoscopic Ultrasound Needle, EchoTip ProCore HD Ultrasound Biopsy Needle…Cook Ireland, Ltd. · 2021 · 3 generations on2descendants
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| 0 (this device) | K851838 | Manan Chiba PTC Needle | Manan Manufacturing Co., Inc. | 1985 | — |
| +1 | K021847 | Biopsy Sciences, LLC. Maxi-Cell Biopsy Needles | Biopsy Sciences, LLC | 2002 | — |
| +2 | K142688 | Echotip Procore HD Ultrasound Biopsy Needle | Cook Ireland, Ltd. | 2014 | — |
| +1 | K980122 | Manan Soft Tissue Biopsy Needles | Medical Device Technologies, Inc. | 1998 | — |
| +3 | K160229 | Echotip Ultra Endobronchial High Definition Ultrasound Needle, Echotip Procore… | Cook Ireland, Ltd. | 2016 | — |
| +3 | K210476 | EchoTip Ultra Endoscopic Ultrasound Needle, EchoTip ProCore HD Ultrasound… | Cook Ireland, Ltd. | 2021 | 1 |
Descendants by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 1998 | 1 | 0 |
| 2002 | 1 | 0 |
| 2004 | 1 | 0 |
| 2005 | 1 | 0 |
| 2007 | 1 | 0 |
| 2008 | 1 | 0 |
| 2014 | 1 | 0 |
| 2015 | 2 | 0 |
| 2016 | 1 | 0 |
| 2017 | 2 | 0 |
| 2018 | 1 | 0 |
| 2020 | 1 | 1 |
| 2021 | 1 | 0 |
| 2023 | 1 | 0 |
| 2024 | 1 | 0 |
| 2025 | 2 | 0 |
| 2026 | 1 | 0 |
Sources: FDA 510(k) database (decision fields), 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 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?
FDA has not posted a summary or statement for it, so its predicates are not known.
What descends from it? (20)
See all 202 later devices cite it directly; ranked here by how many devices descend from each in turn.
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.
- K193517ViziShot 2 FLEXOlympus Surgical Technologies America · 2020 · 4 generations on · ◆ in the 2020 descendants bar of FIG. 11 Class I recall
What does this lineage say?
- Of its descendants, K021847 (Biopsy Sciences, LLC, 2002) has gone furthest, with 11 descendants of its own.
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) | — |
https://510kreport.com/device/K851838 · printed Nov 5, 2026
Cite this page
510(k) Report. “K851838: Manan Chiba PTC Needle.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 5, 2026. https://510kreport.com/device/K851838
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Record history
- FDA decision record loaded May 2, 2026
- Lineage and recalls computed Nov 3, 2026
- Page last updated Nov 3, 2026