K052557 · Togo Medikit Co., Ltd. · DRE · Jan 17, 2006 · Cardiovascular
Device Facts
Record ID
K052557
Device Name
SUPER SHEATH INTRODUCER SHEATH
Applicant
Togo Medikit Co., Ltd.
Product Code
DRE · Cardiovascular
Decision Date
Jan 17, 2006
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 870.1310
Device Class
Class 2
Indications for Use
Super Sheath Introducer Sheaths and Super Sheath Introducer Sheath Sets are intended for the introduction of diagnostic and interventional devices into the human vasculature.
Device Story
Super Sheath Introducer Sheath and Sets facilitate percutaneous access to human vasculature for diagnostic and interventional procedures. System components include a sheath (polyamide/Teflon), dilator (polypropylene or FEP), and optional mini guidewire (stainless steel coil). Sheath features include a hemostatic valve to prevent blood leakage, side tube with three-way stopcock for site management, and optional radiopaque markers. Dilator facilitates sheath entry; removed once sheath is positioned. Used in clinical settings by healthcare professionals. Device provides a conduit for medical instruments; benefits include controlled vascular access and reduced risk of blood loss during device exchange.
Clinical Evidence
Bench testing only. Testing included sheath shaft tensile, kink, hub-to-shaft tensile, hemostatic valve integrity, sheath pressure, lubricity, radiopacity, and corrosion resistance. Dilator and guidewire functional testing (tensile, torqueability, corrosion) and biocompatibility/shelf-life testing were performed. Results verified adequacy for intended use.
Technological Characteristics
Materials: Polyamide, Teflon, Polypropylene (PP), Fluorinated Ethylene Propylene (FEP), stainless steel. Components: Sheath with hemostatic valve, dilator, mini guidewire. Dimensions: 4F-9F diameters, 7-25 cm lengths. Operation: Manual. Sterilization: Sterile, single-use. No software or energy source.
Indications for Use
Indicated for the introduction of diagnostic and interventional devices into the human vasculature. No specific patient population, age, or gender restrictions are stated.
Regulatory Classification
Identification
A vessel dilator for percutaneous catheterization is a device which is placed over the guide wire to enlarge the opening in the vessel, and which is then removed before sliding the catheter over the guide wire.
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JAN 1 7 2006
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## TOGO MEDIKIT CO., LTD.
17148-6, Aza Kamekawa, Oaza Hichiya, Hyuga City
Miyazaki Prefecture 883-0062, Japan
57
## 510(k) Summary per 21 CFR §807.92
| Submitter's Name<br>and Address | Togo Medikit Co. Ltd.<br>17148-6, Aza Kamekawa, Oaza Hichiya, Hyuga City<br>Miyazaki Prefecture 883-0062<br>Japan | | |
|---------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------|---------|-------------------|
| Contact Name and<br>Information | Toshimitsu Hayashi<br>Quality Assurance Assistant Manager<br>Phone: 81-982-53-8027<br>Fax: 81-982-53-8008<br>e-mail: toshimitsu.hayashi@togomedikit.co.jp | | |
| Applicant | Heidi M. Erickson<br>Specialist, Regulatory Affairs<br>Phone: 763-694-3028<br>Fax: 763-694-6966<br>e-mail: ericksoh@bsci.com | | |
| Date Prepared | September 15, 2005 | | |
| Proprietary<br>Name(s) | Super Sheath Introducer Sheath | | |
| Common Name | Catheter Introducer | | |
| Product Code | DYB | | |
| Classification of<br>Device | Class II, 21 CFR Part 870.1340 | | |
| Predicate Device | Terumo Pinnacle<br>Introducer<br>Sheaths | K954234 | November 27, 1995 |
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The Super Sheath Introducer Sheaths are available in-4F-Device Description 9F diameters and available in lengths ranging from 7 to 25 cm. Some sheaths may be ordered with a suture wing and some sheaths have radiopaque markers. The devices are provided sterile and are intended for one procedure use only.
> The Medikit Super Sheath Introducer Sheath is packaged with a dilator. The Super Introducer Sheath Sets consists of a sheath, a dilator and a mini guidewire, with Inserter, as described in this submission or a US commercially available mini guidewire meeting Medikit specifications. The one-piece construction of the sheath shaft and hub allows smooth passage of medical devices. The sheath shaft and hub are made of polyamide and Ethylene shart and mac mac the (Teflon). Some sheaths have radiopaque markers that are embedded into the shaft 1.5 mm from the distal tip. The hubs, color-coded by French size, contain a hemostatic valve to prevent blood leakage during a procedure. A side tube equipped with a three-way stopcock is attached to the sheath hub. The sidetube extension is used for site management
> The dilator is an open tapered plastic tube with an integral luer hub for guidewire insertion. It is inserted into the introducer sheath and facilitates and supports the entry of the sheath into the patient's vasculature. The dilator is longer than the sheath with a rounded tapered distal tip. Once the sheath is in place the dilator is removed. There are two different dilators, 0.038" and a 0.035" guidewire compatible. The 4-8F-dilator tubes are made from Polypropylene (PP). The 9F dilator tubes are made of Fluorinated Ethylene Propylene (FEP). The dilator tubes are pressed into the dilator hub with a bushing. The sheath hub and the dilator hub lock using a rotating motion.
Super Sheaths can be ordered with a Polypropylene suture wing color coded by French size. The suture wing is a small projection near the hub with a hole in it for correct placement of the sheath using sutures.
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| Device Description<br>continued | The uncoated mini guidewire is made of a stainless steel<br>coil wrapped tightly around an inner mandrel that tapers at<br>the distal tip. The flexible tip is J-shaped available in<br>diameters of 0.035" and 0.038". The mini guidewire (with<br>Inserter) is available in 45cm and 80cm lengths. The<br>Inserter does not contact blood and is used strictly for<br>guiding the guidewire into a cannula or introducer. A US<br>commercially available mini guidewire (meeting Medikit<br>specifications) may be used in the sets or the mini<br>guidewire that is described in this submission. |
|---------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Intended Use of<br>Device | Super Sheath Introducer Sheaths and Super Sheath<br>Introducer Sheath Sets are intended for the introduction of<br>diagnostic and interventional devices into the human<br>vasculature. |
| Non-Clinical Test<br>Summary | Functional testing for the Super Sheath consisted of sheath<br>shaft tensile, sheath kink, sheath hub to shaft tensile,<br>hemostatic valve integrity/sheath pressure, valve integrity<br>of sheath, sheath lubricity, sheath radiopacity, and<br>sheath/dilator corrosion resistance testing. Dilator<br>functional testing consisted of dilator shaft tensile and<br>dilator hub to shaft tensile testing. Mini Guidewire<br>functional testing included tensile, combined load,<br>torqueability, radiopacity and corrosion resistance.<br>Biocompatibility, packaging and product shelf life testing<br>has also been conducted. Test results verified that the<br>Super Sheath Introducer Sheaths and Super Sheath<br>Introducer Sheath Sets are adequate for their intended use.<br>Based on a comparison of intended use, design and the<br>results of bench testing, Medikit Super Sheath Introducer<br>Sheaths and Super Sheath Introducer Sheath Sets have<br>been shown to be substantially equivalent to the predicate<br>Terumo Pinnacle Introducer Sheaths (K954234) and are<br>therefore deemed suitable for their intended use. |
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Technological Characteristics The Medikit Super Sheath Introducer Sheaths and Super Sheath Introducer Sheath Sets and the Terumo Pinnacle Introducer Sheaths (K954234) are operated manually or by a manual process. The Medikit Super Sheath Introducer Sheaths and Super Sheath Introducer Sheath Sets use similar product design, packaging, sterilization methods and labeling when compared to Terumo Pinnacle Sheaths (the predicate device). The similar indications for use and technological characteristics support a determination of substantial equivalence. Differences in materials or manufacturing methods do not raise any new issues of safety and effectiveness.
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Image /page/4/Picture/1 description: The image shows the logo for the U.S. Department of Health and Human Services. The logo features a stylized eagle with three lines forming its body and wings. The eagle is facing right. Encircling the eagle is the text "DEPARTMENT OF HEALTH AND HUMAN SERVICES - USA" in a circular arrangement.
Public Health Service
Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850
JAN 17 2006
Togo Medikit Co., Ltd. c/o Boston Scientific Corporation Ms. Heidi M. Erickson Specialist, Regulatory Affairs 5905 Nathan Lane P-25 Plymouth, MN 55442
K052557 Re: Super Sheath Introducer Sheath Regulation Number: 21 CFR 870.1310 Regulation Name: Vessel dilator for percutaneous catheterization Regulatory Class: II Product Code: DRE Dated: December 27, 2005 Received: December 29, 2005
Dear Ms. Erickson:
We have reviewed your Section 510(k) premarket notification of intent to market the device we neve reviewed your betermined the device is substantially equivalent (for the indications for use stated in the enclosure) to legally marketed predicate devices marketed in interstate for assessed in the encreated of to trg. 25 the Medical Device Amendments, or to devices that have been reclassified in accordance with the provisions of the Federal Food, Drug, and Cosmetic Act (Act) that do not require approval of a premarket approval application (PMA). You may, therefore, market the device, subject to the general controls provisions of the Act. The general controls provisions of the Act include requirements for annual registration, listing of devices, good manufacturing practice, labeling, and prohibitions against misbranding and adultcration.
If your device is classified (see above) into either class II (Special Controls) or class III (PMA), it may be subject to such additional controls. Existing major regulations affecting your device can be found in the Code of Federal Regulations, Title 21, Parts 800 to 898. In addition, FDA may publish further announcements concerning your device in the Federal Register.
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Page 2 -- Ms. Heidi M. Erickson
Please be advised that FDA's issuance of a substantial equivalence determination does not mean that FDA has made a determination that your device complies with other requirements of the Act or any Federal statutes and regulations administered by other Federal agencies. You must comply with all the Act's requirements, including, but not limited to: registration and listing (21 CFR Part 807); labeling (21 CFR Part 801); good manufacturing practice requirements as set forth in the quality systems (QS) regulation (21 CFR Part 820); and if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050. This letter will allow you to begin marketing your device as described in your Section 510(k) premarket notification. The FDA finding of substantial equivalence of your device to a legally marketed predicate device results in a classification for your device and thus, permits your device to proceed to the market.
If you desire specific advice for your device on our labeling regulation (21 CFR Part 801), please contact the Office of Compliance at (240) 276-0120. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21CFR Part 807.97). You may obtain other general information on your responsibilities under the Act from the Division of Small Manufacturers, International and Consumer Assistance at its toll-free number (800) 638-2041 or (301) 443-6597 or at its Internet address http://www.fda.gov/cdrh/industry/support/index.html.
Sincerely vours.
Dulla R. Vines
Bram D. Zuckerman, M.D. Director Division of Cardiovascular Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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Traditional 510(k) Notification
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Togo Medikit Co. LTD. Introducer Sheaths and Introducer Sheath Sets
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## Section 4: Indications for Use Statement
## Indications for Use
のお気になる。
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K052557 510(k) Number (if known):
Device Name: Super Sheath Introducer Sheath
Indications for Use: Introducer Sheaths and Introducer Sheath Sets are intended for use in the introduction of diagnostic and interventional devices into the human vasculature.
Prescription Use X (Part 21 CFR 801 Subpart D)
AND/OR
Over-The-Counter Use (21 CFR 801 Subpart C)
(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE OF NEEDED)
Concurrence of CDRH, Office of Device Evaluation (ODE)
Dina R. Vidiner
(Division Sign-Off) Division of Cardiovascular Devices
10(k) Number_K052557
Page 1 of 1
Two short videos show you everything — or skip straight to the written tutorial if you'd rather read. You can reopen this any time from the Tutorial button in the top bar.
Part 1 — Search, results, and everyday workflows 16 min
Part 2 — Embeddings: the galaxy map 3 min
1. Search: exact and fuzzy
Type a phrase like "coronary artery calcification" into the search box. You get two kinds of results. Exact results match the literal phrase — prefix searches work ("coronary artery calcificati") but suffix searches do not. Fuzzy results match on the meaning and intent of your phrase rather than the exact words, and are sorted by relevance score. Hover over the Exact or Fuzzy badge on any row to see exactly why it matched.
Use the checkboxes above the results to narrow: SaMD keeps only software-only devices, AI / ML keeps only devices with AI.
Exact vs. fuzzy search: what's the difference?
Exact matches on the literal phrase (prefix search works, suffix does not). Fuzzy matches on the meaning and intent of the phrase rather than the exact words. Hover over the badge on any row to see why it matched.
You search "coronary artery calcification" and want only software devices with AI. What two filters do you apply?
Narrow by SaMD (software-only devices), then narrow by AI/ML (devices with AI).
2. The results table
Scroll right in the results table. The intended use is extracted for you — no need to open the PDF. The device story gives a high-level snapshot of what the device does and how it's used. The AI Performance sub-table shows each output name, acceptance criteria, observed values, and development/test dataset descriptions — the same format Innolitics uses for regulatory strategy outputs, and the fastest high-level fingerprint of an AI device. It is AI-generated but has been very reliable in practice.
Where do you find a device's intended use without opening the PDF?
Scroll right in the search results table. The intended use column is extracted for you; no need to dig into the 510(k) summary PDF.
What does the AI Performance sub-table show, and why is it useful?
Output name, acceptance criteria, observed values, development dataset description, and test dataset description. It's the same format we use for regulatory strategy output and Fast 510(k) input, and the fastest high-level fingerprint of an AI device. AI-generated but reliable in practice.
3. Judging fuzzy relevance
Fuzzy results trail off in relevance as you scroll. Use three signals to decide how far down to go: the fuzzy badge explanations, the intended use column, and whether your target output (e.g., Cobb angle) still appears in the AI Performance sub-table. Once it stops appearing, you're past the relevant zone. A top hit with a low score (~0.4) and a stretched explanation is a hint the closest predicates are far away — the project may be headed for De Novo. Note the fuzzy search is a pattern match: it doesn't handle negation ("not") well, and hardware devices can appear — filter by SaMD/AI ML to cut them.
How do you judge how far down fuzzy search results to go?
Use the relevancy signals: the fuzzy badge explanations, the intended use column, and whether the target output (e.g., Cobb angle) still appears in the AI Performance sub-table. Once it stops appearing, results are trailing off in relevancy.
4. Device detail page: chat and citations
Click a device name to open its detail page: device facts on the left, a chat window on the right. Ask something like "Describe the training data". The answer carries little citation bubbles — click one to jump to the highlighted passage in the source PDF, so you can verify every AI answer against the document. There's also a Download PDF button for sharing.
How do you verify an AI chat answer on the device detail page?
Click the citation bubbles to jump to the relevant highlight in the source document.
Reading rule for every project: how many summaries do you read in full?
At least the three most relevant 510(k) or De Novo summaries, in full. After that, use targeted chat questions to confirm your memory quickly. The tool supports this professional habit — it doesn't replace it.
5. Side-by-side comparison
Select multiple rows in the results table (aim for under ~10), then open the PDF Viewer tab. Ask one question — it goes to all selected devices in parallel, each with citations. This is the fastest way to compare and contrast devices: training data, PCCP scope, how they handled adding new scanners, and so on.
What does the side-by-side PDF viewer mode do?
Select multiple devices, open the PDF viewer tab, and ask one question (e.g., "Describe the training data"). It queries all selected devices simultaneously with citations, so you can compare and contrast quickly.
6. Collections
With rows selected, go to the Collections tab and create a labeled collection (e.g., "Cobb Angle Project"). Reload that selection any time — before a client call, pull up the collection and ask questions across all of its devices at once.
How do you save a set of selected devices for later use?
Select the rows, go to the Collections tab, and create a labeled collection (e.g., "Cobb Angle Project"). You can reload the selection anytime and carry it into the PDF viewer and other tabs that support selections.
7. Product codes and the regulations tree
Click a product code in the results to jump to it in the regulations tree — identification text, sibling product codes, and devices you can open in a PDF viewer on the right. Click a regulation number to see its identification, special controls, and related product codes. You can also search by product code or regulation number at the top of the tree. Always read the special controls if any exist for your device — it broadens your search and sharpens pre-kickoff research.
What can you do from the regulations tree view?
Browse product codes and regulation numbers, read the identification text and special controls, browse sibling product codes, open device PDFs on the right, and search by product code or regulation number at the top of the tree.
8. Chart view
Click Show Chart and segment by regulation number (or product code) to see which regulations dominate your result set. Clicking a regulation takes you into the regulations tree. Great for spotting that most matches are, say, hardware laparoscopic devices — a cue to go back and filter.
How do you see which regulations dominate a search result set?
Click "Show Chart" and segment by Regulation Number. Clicking a regulation takes you to the regulations tree.
9. The predicate graph
Open the Predicates tab for a family-tree view of predicate relationships. Click a node to trace its parents and children; selections from search carry over pre-selected. Commonly predicated devices are worth reading — a lot of people predicated them for a reason. The visual lineage is also handy on client calls, e.g. to show how a predicate family evolved and justify why your predicate still holds.
In the predicate graph, why are commonly predicated devices worth reading?
A lot of people predicated them for a reason. Clicking a node traces parents and children, and selections from search carry over pre-selected.
10. Embeddings: the galaxy map
The Embeddings tab plots every matching document in a 2-D "galaxy map" where semantically similar devices cluster together. Hover or click clusters to explore, and let AI label the clusters for you. Embeddings beat product codes for grouping: two devices can carry different product codes (LLZ vs. QIH) yet do the same thing — the embedding captures the meaning of the intended use and device story. This is also exactly how retrieval-augmented generation (RAG) works under the hood, and it makes a great visual on client calls.
Try it yourself
Head to the search page and work through a few of these AI/ML fuzzy searches to build intuition: perivascular fat on CT · aortic valve calcification opportunistic screening on noncontrast CT · breast cancer prediction on digital pathology slides · autism detection · gestational age prediction · a hearing aid that can also detect a pulse · foundation model based analysis of ECG · large language models · penetration test. Watch how the relevance scores, intended use, and AI Performance tables tell you when results stop being meaningful.