510(k) · Cleared
Cleared8ch T/R Knee Coil
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Shenzhen RF Tech Co., Ltd. · MOS Coil, Magnetic Resonance, Specialty
Cleared on Feb 14, 2023 as substantially equivalent to K032633 (Mri Devices Corp., 2003) after a 119-day review. Its family tree reaches back 1 generation to 2003. 1 later device descends from it.
- Decided
- Feb 14, 2023
- Review
- 119 days
- Class
- Class II
- Product code
- MOS
- Recalls
- None
- Predicates
- 1
Its longest line of descent runs back 1 generation to K032633 (2003). 1 later device descends from it, 1 citing it directly.
Most influential descendants
Showing 1 of 1 · See all- K2310851.5T HD T/R Knee Array (10-F34127)Shenzhen RF Tech Co., Ltd. · 2023 · cites it directly0descendants
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −1 | K032633 | HRK-63-8 Knee Array Coil | Mri Devices Corp. | 2003 | — |
| 0 (this device) | K223225 | 8ch T/R Knee Coil | Shenzhen RF Tech Co., Ltd. | 2023 | — |
| +1 | K231085 | 1.5T HD T/R Knee Array (10-F34127) | Shenzhen RF Tech Co., Ltd. | 2023 | — |
Descendants by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 2023 | 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 MOS? 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 MOS device
- #1 K253738 3.0T Air 32CH Hnascore 15.2 · 16 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 |
|---|---|---|---|
| * | K032633 | HRK-63-8 Knee Array CoilSummary page 4…MRI DEVICES CORP. Device: HRK-63-8 KNEE ARRAY COIL 510(K) Number: K032633 V. Device Description The 8ch T/R Knee Coil is transmit/receive phased array coil to produce diagnostic images of images of the… | 2003 |
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 |
|---|---|---|---|
| K231085 | 1.5T HD T/R Knee Array (10-F34127) | 2023 | 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 MOS devicesMOS Coil, Magnetic Resonance, Specialty: FDA decisions, review times, recalls and adverse event reports over 20 years. 2023, this device’s year, is highlighted.
FDA decisions per year · MOS
3in 2025
2026 to Oct 25, outlined.
Median 510(k) review, days · MOS
59in 2025
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · MOS
13in 2024
Class I (0 since 2007) Class II/III not classified
Adverse event reports per year · MOS
2in 2025
MAUDE reports naming product code MOS, 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 | 16 | 19 | 0 | 4 |
| 2008 | 19 | 33 | 2 | 2 |
| 2009 | 10 | 43 | 0 | 5 |
| 2010 | 16 | 78 | 1 | 13 |
| 2011 | 25 | 57 | 0 | 7 |
| 2012 | 15 | 49 | 1 | 12 |
| 2013 | 7 | 87 | 0 | 10 |
| 2014 | 12 | 60 | 0 | 4 |
| 2015 | 6 | 58 | 2 | 5 |
| 2016 | 11 | 42 | 0 | 7 |
| 2017 | 9 | 63 | 0 | 9 |
| 2018 | 10 | 30 | 0 | 7 |
| 2019 | 3 | 178 | 8 | 8 |
| 2020 | 5 | 51 | 1 | 2 |
| 2021 | 4 | 41 | 0 | 3 |
| 2022 | 11 | 79 | 0 | 5 |
| 2023 | 10 | 59 | 0 | 4 |
| 2024 | 10 | 39 | 13 | 8 |
| 2025 | 3 | 59 | 0 | 2 |
| 2026 | 10 | 45 | 0 | — |
What is it indicated for?
The 8ch T/R Knee Coil manufactured by Shenzhen RF Tech Co.,Ltd is transmit/receive coil and is designed for use as general purpose coil. The 8ch T/R Knee Coil is designed to be use with GE 1.5T MRI systems to produce diagnostic images of the knee, palm, sole, ankle, elbow, wrist that can be interpreted by a trained physician.
Indications for use as stated in the FDA summary.
https://510kreport.com/device/K223225 · printed Nov 6, 2026
Cite this page
510(k) Report. “K223225: 8ch T/R Knee Coil.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K223225
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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