510(k) · Cleared
ClearedSuper Sheath Introducer Sheath and Super Sheath Introducer Sheath Sets
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Togo Medikit Co., Ltd. · DYB Introducer, Catheter
Cleared on Sep 27, 2012 as substantially equivalent to K052557 (Togo Medikit Co., Ltd., 2006) after a 129-day review. Its family tree reaches back 2 generations to 1995. 9 later devices descend from it.
- Decided
- Sep 27, 2012
- Review
- 129 days
- Class
- Class II
- Product code
- DYB
- Recalls
- None
- Predicates
- 1
Its longest line of descent runs back 2 generations to K954234 (1995). 9 later devices descend from it, 3 citing it directly.
- Root · 2 generations backK954234 Radifocus Introducer II KitTerumo Medical Corp. · 1995
- 1 generation backK052557 Super Sheath Introducer SheathTogo Medikit Co., Ltd. · 2006 · Recalled
- This deviceK121504 Super Sheath Introducer Sheath and Super Sheath Introducer Sheath SetsTogo Medikit Co., Ltd. · 2012
- Descendant · cites it directly · 5 of its ownK123430 Microslider Tearaway Introducer SetGalt Medical Corp. · 2013
- Descendant · 2 generations on · 4 of its ownK153533 Tearaway Introducer Sheath, MicroSlide Tearaway IntroducerGalt Medical Corp. · 2016 · Recalled
- Descendant · 3 generations on · 1 of its ownK170020 Peel-Away Introducer SetCook Incorporated · 2017
- Descendant · cites it directly · 1 of its ownK141070 Super SheathTogo Medikit Co., Ltd. · 2015
- Descendant · 3 generations on · 0 of its ownK261950 Health Line Tearaway IntroducerHealth Line International Corporation · 2026
Showing 5 of 9 descendants. See all descendants
Descendants cleared per year
Most influential descendants
Showing 5 of 9 · See all- K123430Microslider Tearaway Introducer SetGalt Medical Corp. · 2013 · cites it directly5descendants
- K153533Tearaway Introducer Sheath, MicroSlide Tearaway IntroducerGalt Medical Corp. · 2016 · 2 generations on4descendants
- K170020Peel-Away Introducer SetCook Incorporated · 2017 · 3 generations on1descendant
- K141070Super SheathTogo Medikit Co., Ltd. · 2015 · cites it directly1descendant
- K261950Health Line Tearaway IntroducerHealth Line International Corporation · 2026 · 3 generations on0descendants
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −2 | K954234 | Radifocus Introducer II Kit | Terumo Medical Corp. | 1995 | — |
| −1 | K052557 | Super Sheath Introducer Sheath | Togo Medikit Co., Ltd. | 2006 | 1 |
| 0 (this device) | K121504 | Super Sheath Introducer Sheath and Super Sheath Introducer Sheath Sets | Togo Medikit Co., Ltd. | 2012 | — |
| +1 | K123430 | Microslider Tearaway Introducer Set | Galt Medical Corp. | 2013 | — |
| +2 | K153533 | Tearaway Introducer Sheath, MicroSlide Tearaway Introducer | Galt Medical Corp. | 2016 | 2 |
| +3 | K170020 | Peel-Away Introducer Set | Cook Incorporated | 2017 | — |
| +1 | K141070 | Super Sheath | Togo Medikit Co., Ltd. | 2015 | — |
| +3 | K261950 | Health Line Tearaway Introducer | Health Line International Corporation | 2026 | — |
Descendants by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 2013 | 1 | 0 |
| 2015 | 1 | 0 |
| 2016 | 1 | 0 |
| 2017 | 2 | 0 |
| 2020 | 1 | 0 |
| 2024 | 1 | 0 |
| 2026 | 2 | 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 DYB? 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 DYB device
- #1 K251051 AuST Steerable Sheathscore 18.0 · 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? (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 |
|---|---|---|---|
| * | K052557 | Super Sheath Introducer SheathSummary page 2…on Name Catheter Introducer Regulation Number 870.1340 Product Code DYB Classification Panel Cardiovascular Device Class Class 11 Predicate Device 1. K052557: Super Sheath Introducer Sheath and Introducer Sheath Sets, 4F-9F Togo Medikit Co., Ltd. previously submitted Special 510(k) K(0… | 2006 |
What descends from it? (9)
3 later devices cite it directly; ranked here by how many devices descend from each in turn.
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 17 years and passes through 2 companies; a new generation was cleared every 10.1 years on median.
- 1 of the 2 ancestors has a recall of any class.
- Of its descendants, K123430 (Galt Medical Corp., 2013) has gone furthest, with 5 descendants of its own.
- 4 other devices also cite its predicate K052557.
How does its category compare?
All DYB devicesDYB Introducer, Catheter: FDA decisions, review times, recalls and adverse event reports over 20 years. 2012, this device’s year, is highlighted.
FDA decisions per year · DYB
16in 2025
2026 to Oct 25, outlined.
Median 510(k) review, days · DYB
63in 2025
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · DYB
3in 2025
Class I (48 since 2007) Class II/III not classified
Adverse event reports per year · DYB
4,539in 2025
MAUDE reports naming product code DYB, 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 | 12 | 95 | 15 | 316 |
| 2008 | 17 | 37 | 9 | 423 |
| 2009 | 14 | 52 | 25 | 399 |
| 2010 | 18 | 123 | 18 | 445 |
| 2011 | 17 | 100 | 4 | 628 |
| 2012 | 22 | 128 | 3 | 898 |
| 2013 | 26 | 118 | 5 (1) | 743 |
| 2014 | 30 | 122 | 2 | 780 |
| 2015 | 17 | 129 | 2 (1) | 913 |
| 2016 | 19 | 95 | 45 (3) | 1,234 |
| 2017 | 24 | 70 | 22 (1) | 1,672 |
| 2018 | 19 | 156 | 1 | 1,903 |
| 2019 | 18 | 47 | 2 | 2,450 |
| 2020 | 9 | 49 | 21 (21) | 2,465 |
| 2021 | 12 | 78 | 6 | 2,835 |
| 2022 | 13 | 143 | 2 | 4,084 |
| 2023 | 15 | 55 | 10 | 3,775 |
| 2024 | 18 | 56 | 2 | 3,931 |
| 2025 | 16 | 63 | 3 | 4,539 |
| 2026 | 17 | 59 | 23 (21) | — |
What is it indicated for?
The Super Sheath Introducer Sheaths and Super Sheath Introducer Sheath Sets are indicated for use in the introduction of diagnostic and interventional devices inserted into the human vasculature of adult and pediatric patients of all ages.
Indications for use as stated in the FDA summary.
https://510kreport.com/device/K121504 · printed Nov 4, 2026
Cite this page
510(k) Report. “K121504: Super Sheath Introducer Sheath and Super Sheath Introducer Sheath Sets.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 4, 2026. https://510kreport.com/device/K121504
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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