510(k) · Cleared
Recalled · Class II · 2023Karl Storz Radel Sterilization Trays
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Karl Storz Endoscopy America, Inc. · KCT Sterilization Wrap Containers, Trays, Cassettes & Other Accessories
Cleared on May 7, 2021 as substantially equivalent to K012105 (Symmetry Medical, Inc., 2002) after a 151-day review. Its family tree reaches back 4 generations to 1984. It has been recalled once.
- Decided
- May 7, 2021
- Review
- 151 days
- Class
- Class II
- Product code
- KCT
- Recalls
- 1
- Predicates
- 1
Its longest line of descent runs back 4 generations to K844002 (1984). 6 ancestors in all. No later device cites it as a predicate yet.
- Root · 4 generations backK844002 HU-Friedy Ims Cassette SystemHu-Friedy Mfg. Co., Inc. · 1984
- 3 generations backK980065 C/T Med-Systems Cassette SystemC/T Med System, Ltd. · 1998
- 2 generations backK990761 Tuttnauer Mini Container Cassette, Tuttnauer Standard Case CassetteTuttnauer U.S.A Co, Ltd. · 1999
- 1 generation backK012105 Polyvac Surgical Instrument Delivery SystemSymmetry Medical, Inc. · 2002
- This deviceK203572 Karl Storz Radel Sterilization TraysKarl Storz Endoscopy America, Inc. · 2021
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −4 | K844002 | HU-Friedy Ims Cassette System | Hu-Friedy Mfg. Co., Inc. | 1984 | — |
| −3 | K980065 | C/T Med-Systems Cassette System | C/T Med System, Ltd. | 1998 | — |
| −2 | K990761 | Tuttnauer Mini Container Cassette, Tuttnauer Standard Case Cassette | Tuttnauer U.S.A Co, Ltd. | 1999 | — |
| −1 | K012105 | Polyvac Surgical Instrument Delivery System | Symmetry Medical, Inc. | 2002 | — |
| 0 (this device) | K203572 | Karl Storz Radel Sterilization Trays | Karl Storz Endoscopy America, Inc. | 2021 | — |
Other ancestors by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 1994 | 1 | 0 |
| 1997 | 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 KCT? 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 KCT device
- #1 K214041 Aesculap AICON Containerscore 18.1 · 6 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 |
|---|---|---|---|
| * | K012105 | Polyvac Surgical Instrument Delivery SystemSummary page 4…n Name: Sterilization wrap/container Predicate devices: Symmetry Medical Polyvac Surgical Instrument Delivery System K012105 Description: The KARL STORZ-ENDOSCOPE RADEL Sterilization Trays are intended only for use to encase various KARL STORZ reusable… | 2002 |
What descends from it?
No later submission names this one as a predicate yet.
Has anything in its family been recalled? (0 Class I)
Recalls of this device
| Date | Class | Recall | Root cause | Reason |
|---|---|---|---|---|
| Apr 5, 2023 | Class II | Z-1981-2023 | No Marketing Application | Plastic sterilization trays used to encase and protect medical devices during sterilization have a new 510(k) with instructions for use that is for the first time specific to the tray models, that also includes information regarding the… |
No ancestor or descendant has a Class I recall.
What does this lineage say?
- The line of descent spans 37 years and passes through 5 companies; a new generation was cleared every 13.5 years on median.
- None of the 6 ancestors has a recall.
- 20 other devices also cite its predicate K012105.
How does its category compare?
All KCT devicesKCT Sterilization Wrap Containers, Trays, Cassettes & Other Accessories: FDA decisions, review times, recalls and adverse event reports over 20 years. 2021, this device’s year, is highlighted.
FDA decisions per year · KCT
11in 2025
2026 to Oct 25, outlined.
Median 510(k) review, days · KCT
205in 2025
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · KCT
17in 2022
Class I (0 since 2007) Class II/III not classified
Adverse event reports per year · KCT
50in 2025
MAUDE reports naming product code KCT, 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 | 3 | 199 | 0 | 2 |
| 2008 | 6 | 182 | 0 | 8 |
| 2009 | 6 | 89 | 0 | 5 |
| 2010 | 12 | 202 | 1 | 3 |
| 2011 | 6 | 117 | 2 | 3 |
| 2012 | 10 | 236 | 0 | 2 |
| 2013 | 8 | 131 | 1 | 6 |
| 2014 | 11 | 169 | 1 | 5 |
| 2015 | 15 | 151 | 0 | 6 |
| 2016 | 12 | 182 | 3 | 16 |
| 2017 | 10 | 211 | 1 | 3 |
| 2018 | 15 | 192 | 0 | 22 |
| 2019 | 18 | 187 | 0 | 15 |
| 2020 | 14 | 134 | 0 | 66 |
| 2021 | 18 | 185 | 1 | 26 |
| 2022 | 11 | 137 | 17 | 8 |
| 2023 | 10 | 94 | 0 | 30 |
| 2024 | 8 | 106 | 0 | 18 |
| 2025 | 11 | 205 | 0 | 50 |
| 2026 | 9 | 122 | 0 | — |
What is it indicated for?
The KARL STORZ RADEL Sterilization Trays are intended only for use to encase and protect specific KARL STORZ reusable medical devices for sterilization in pre-vacuum steam sterilization cycles (132°C 4 minutes). The KARL STORZ RADEL Sterilization Trays are intended to protect medical device instrumentation. When used in conjunction with an FDA cleared sterilization wrap. KARL STORZ has validated the KARL STORZ RADEL Sterilization Trays for use in…
Read the full statement (172 words)
The KARL STORZ RADEL Sterilization Trays are intended only for use to encase and protect specific KARL STORZ reusable medical devices for sterilization in pre-vacuum steam sterilization cycles (132°C 4 minutes).
The KARL STORZ RADEL Sterilization Trays are intended to protect medical device instrumentation. When used in conjunction with an FDA cleared sterilization wrap.
KARL STORZ has validated the KARL STORZ RADEL Sterilization Trays for use in pre-vacuum steam sterilizers. The system was validated with a miniature scope with an irrigation channel lumen diameter of 0.25 mm and a length of 240 mm and a semi-rigid ureteroscope with a channel lumen diameter of 0.77 mm and a length of 420 mm.
Tray Catalog Number Intended Load Maximum Weight
(Karl Storz Instruments Only)
27717A Trocar/Cannula 5.0 lbs.
27717B Take-Apart Instruments 5.0 lbs.
39231XA Karl Storz General Instruments 5.0 lbs.
39301A Two Rigid Telescopes 2.71 lbs.
39301C Two Rigid Telescopes 3.21 lbs.
39301C1 One Rigid Telescope/One Light Cable 3.17 lbs.
39311A Four Telescopes/One Light Cable 6.86 lbs.
39317A Three Telescopes/One Light Cable 6.86 lbs.
Indications for use as stated in the FDA summary.
https://510kreport.com/device/K203572 · printed Nov 4, 2026
Cite this page
510(k) Report. “K203572: Karl Storz Radel Sterilization Trays.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 4, 2026. https://510kreport.com/device/K203572
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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