510(k) Report

510(k) · Cleared

Cleared

1.5T HD T/R Knee Array (10-F34127)

K231085510(k) TraditionalCleared Aug 18, 2023123-day reviewClass II21 CFR 892.1000

Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly, last Nov 3, 2026

Shenzhen RF Tech Co., Ltd. · MOS Coil, Magnetic Resonance, Specialty

Cleared on Aug 18, 2023 as substantially equivalent to K223225 (Shenzhen RF Tech Co., Ltd., 2023) after a 123-day review. Its family tree reaches back 2 generations to 2003.

Decided
Aug 18, 2023
Review
123 days
Class
Class II
Product code
MOS
Recalls
None
Predicates
1

Its longest line of descent runs back 2 generations to K032633 (2003). No later device cites it as a predicate yet.

  1. Root · 2 generations backK032633 HRK-63-8 Knee Array CoilMri Devices Corp. · 2003
  2. 1 generation backK223225 8ch T/R Knee CoilShenzhen RF Tech Co., Ltd. · 2023
  3. This deviceK231085 1.5T HD T/R Knee Array (10-F34127)Shenzhen RF Tech Co., Ltd. · 2023
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
−2K032633HRK-63-8 Knee Array CoilMri Devices Corp.2003—
−1K2232258ch T/R Knee CoilShenzhen RF Tech Co., Ltd.2023—
0 (this device)K2310851.5T HD T/R Knee Array (10-F34127)Shenzhen RF Tech Co., Ltd.2023—
FIG. 1 — Lineage of K231085, 2003–2023Source: FDA 510(k) summaries, read by 510(k) Report · How lineage is built

Get the monthly Device Review Tracker

Notable FDA decisions, review times and new Class I recalls. See an issue.

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. #1 K253738 3.0T Air 32CH Hnascore 15.2 · 16 generations · no Class I recall
  2. #2 Held for the reportin the report
  3. #3 Held for the reportin the report
Get a 510(k) 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.

TypeNumberDeviceApplicantDecidedRecalls
*K2232258ch T/R Knee Coil
Summary page 4
…Shenzhen RF Tech Co.,Ltd. Device: 8ch T/R Knee Coil 510(K) Number: K223225 V. Device Description The 1.5T HD T/R Knee Array is transmit/receive phased array coil to produce diagnostic images of images of…
Shenzhen RF Tech Co., Ltd.2023—

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 20 years and passes through 2 companies; a new generation was cleared every 19.4 years on median.
  • None of the 2 ancestors has a recall.

How does its category compare?

All MOS devices

MOS 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

2007: 162008: 192009: 102010: 162011: 252012: 152013: 72014: 122015: 62016: 112017: 92018: 102019: 32020: 52021: 42022: 112023: 102024: 102025: 32026 (partial year): 10
2007high 25 (2011) · low 3 (2019)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · MOS

59in 2025

2007: 19 days median2008: 33 days median2009: 43 days median2010: 78 days median2011: 57 days median2012: 49 days median2013: 87 days median2014: 60 days median2015: 58 days median2016: 42 days median2017: 63 days median2018: 30 days median2019: 178 days median2020: 51 days median2021: 41 days median2022: 79 days median2023: 59 days median2024: 39 days median2025: 59 days median2026 (partial year): 45 days median
2007high 178 (2019) · low 19 (2007)2026

Receipt to decision; years with fewer than 3 clearances left blank.

Recalls per year · MOS

13in 2024

2008: 22010: 12012: 12015: 22019: 82020: 12024: 13
2007high 13 (2024) · low 0 (2007)2026

Class I (0 since 2007) Class II/III not classified

Adverse event reports per year · MOS

2in 2025

2007: 42008: 22009: 52010: 132011: 72012: 122013: 102014: 42015: 52016: 72017: 92018: 72019: 82020: 22021: 32022: 52023: 42024: 82025: 2
2007high 13 (2010) · low 2 (2008)2025

MAUDE reports naming product code MOS, not matched to any one device; reports are not rates.

View these four charts as a table
YearDecisionsMedian 510(k) review, daysRecalls (Class I)MAUDE reports
2007161904
2008193322
2009104305
20101678113
2011255707
20121549112
2013787010
2014126004
201565825
2016114207
201796309
2018103007
2019317888
202055112
202144103
2022117905
2023105904
20241039138
202535902
202610450—

What is it indicated for?

The Knee Coil manufactured by Shenzhen RF Tech Co.,Ltd. is transmit/receive coil and is designed for use as general purpose coil. The Knee Coil is designed to be use with GEHC 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.

Cite this page

510(k) Report. “K231085: 1.5T HD T/R Knee Array (10-F34127).” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 5, 2026. https://510kreport.com/device/K231085

Report an extraction error

Tell us what is wrong; we check it against the FDA summary.

Are you the manufacturer?

Send a correction or an update to this page, for example a newer model or a public statement about a recall.

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