GUNHTER TULIP VENA CAVA MREYE FILTER AND RETRIEVAL SET
K032426 · Cook, Inc. · DTK · Oct 31, 2003 · Cardiovascular
Device Facts
Record ID
K032426
Device Name
GUNHTER TULIP VENA CAVA MREYE FILTER AND RETRIEVAL SET
Applicant
Cook, Inc.
Product Code
DTK · Cardiovascular
Decision Date
Oct 31, 2003
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 870.3375
Device Class
Class 2
Attributes
Therapeutic
Indications for Use
Filter Set: The Günther Tulip™ Vena Cava Filter Set is indicated for the prevention of recurrent pulmonary embolism via placement in the vena cava in the following situations: - Pulmonary thromboembolism when anticoagulant therapy is contraindicated; . - Failure of anticoagulant therapy in thromboembolic diseases; . - Emergency treatment following massive pulmonary embolism where anticipated . benefits of conventional therapy are reduced; and - . Chronic, recurrent pulmonary embolism where anticoagulant therapy has failed or is . contraindicated. The Günther Tulip™ Vena Cava Filter may be retrieved according to the instructions supplied in the section labeled: Optional Retrieval Procedure. Retrieval Set: The Günther Tulip™ Vena Cava Filter Retrieval Set has been designed for retrieval of an implanted Günther Tulip™ Vena Cava Filter in patients who no longer require a filter. Retrieval of the filter can be performed only by jugular approach.
Device Story
Inferior vena cava filter; radiopaque tip; introduced via femoral or jugular vein. Retrieval set includes radiopaque catheter with braided platinum loop at distal end. Used in clinical settings by physicians. Filter captures emboli to prevent pulmonary embolism; retrieval set allows removal of filter when no longer clinically indicated. Benefits include prevention of recurrent PE and flexibility for temporary placement. Clinical study (n=41) demonstrated successful retrieval up to 14+ days post-implantation with no adverse events.
Clinical Evidence
Clinical study of 41 patients (19 female, 22 male) evaluated safety of filter retrieval. Indications included trauma, prophylaxis, and anticoagulation failure. 26 attempted retrievals were successful; 15 patients required permanent implantation. Retrieval performed between 2-20 days (mean 11.4 days). No adverse events reported in retrieved group. 23 patients followed for 3 months post-retrieval with no reported abnormalities.
Technological Characteristics
Inferior vena cava filter with radiopaque tip; retrieval catheter features braided platinum loop. Materials subjected to biocompatibility, stress, and tensile testing. Device is non-powered, mechanical, and radiopaque for visualization.
Indications for Use
Indicated for patients requiring prevention of recurrent pulmonary embolism due to contraindication or failure of anticoagulant therapy, or following massive pulmonary embolism. Applicable to patients requiring temporary filter placement with subsequent retrieval via jugular approach.
Regulatory Classification
Identification
A cardiovascular intravascular filter is an implant that is placed in the inferior vena cava for the purpose of preventing pulmonary thromboemboli (blood clots generated in the lower limbs and broken loose into the blood stream) from flowing into the right side of the heart and the pulmonary circulation.
Special Controls
*Classification.* Class II. The special controls for this device are:(1) “Use of International Standards Organization's ISO 10993 ‘Biological Evaluation of Medical Devices Part I: Evaluation and Testing,’ ” and
(2) FDA's:
(i) “510(k) Sterility Review Guidance and Revision of 2/12/90 (K90-1)” and
(ii) “Guidance for Cardiovascular Intravascular Filter 510(k) Submissions.”
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OCT 3 1 2003
# 510(k) SUMMARY
| Submitted By: | Cook Incorporated |
|----------------|--------------------------------|
| Contact: | Jennifer Bosley, MBA |
| | Regulatory Affairs Coordinator |
| | Tel: (812) 339-2235 |
| | Fax: (812) 332-0281 |
| Date Prepared: | October 31, 2003 |
## Device:
| Trade Name: | Günther Tulip™ Vena Cava Filter and Retrieval Set |
|--------------------------------------------|-----------------------------------------------------------------------------------------|
| Common/Usual Name | Inferior Vena Cava Filter and Retrieval Set |
| Proposed Classification:<br>& Product Code | Filter, Intravascular, Cardiovascular<br>21 CFR §870.3375, Class II, DTK—Cardiovascular |
# Intended Use:
Filter Set:
The Günther Tulip™ Vena Cava Filter Set is indicated for the prevention of recurrent pulmonary embolism via placement in the vena cava in the following situations:
- Pulmonary thromboembolism when anticoagulant therapy is contraindicated; .
- Failure of anticoagulant therapy in thromboembolic diseases; .
- Emergency treatment following massive pulmonary embolism where anticipated . benefits of conventional therapy are reduced; and
- . Chronic, recurrent pulmonary embolism where anticoagulant therapy has failed or is contraindicated.
The Günther Tulip™ Vena Cava Filter may be retrieved according to the instructions supplied in the section labeled: Optional Retrieval Procedure.
# Retrieval Set:
The Günther Tulip™ Vena Cava Filter Retrieval Set has been designed for retrieval of an implanted Günther Tulip™ Vena Cava Filter in patients who no longer require a filter. Retrieval of the filter can be performed only by jugular approach.
# Predicate Devices:
The subject devices are substantially equivalent to predicate devices: Günther Tulip™ Vena Cava MReye® Filter, #K000855 (Cook Incorporated); Amplatz Goose Neck Snare, #K972511 (Microvena Corp.); and the Radius Microsnare, #K022201 (Radius Medical Technologies).
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## Device Description:
The Günther Tulip™ Vena Cava Filter and Retrieval Set is an inferior vena cava filter with a radiopaque band at the tip, which can be introduced via either femoral or jugular vein. The radiopaque retrieval catheter has a braided platinum loop at the distal end.
### Substantial Equivalence:
The subject device is similar with respect to intended use, materials and functional characteristics of commercially available predicate devices in terms of section 510(k) substantial equivalence; any differences that may exist do not significantly affect the safety and effectiveness of the device.
## Test Data:
The Günther Tulip™ Vena Cava Filter and Retrieval Set have been subjected to and have passed the following tests to ensure reliable design and performance under the specified testing parameters:
Filter Set:
- · Biocompatibility
- Material and stress analysis tests
- · Clinical experience
Retrieval Set:
- · Biocompatibility
- · Tensile
- Clinical evaluation
## Clinical Experience:
To evaluate the safety of retrieving the Günther Tulip™ Vena Cava Filter, a clinical study was conducted in which 41 patients [female (n=19); male (n=22)] were enrolled for possible retrieval of the filter. Indications for placement of retrievable filter in the study included: bleeding while anticoagulated (n=2), recent bleeding not anticoagulated (n=0), prophylactic pre-op (n=12), prophylactic post-op (n=3), failure of anticoagulation resulting in recurrent PE (n=1), failure of anticoagulation resulting in extension of DVT (n=0), prophylaxis following PE (n=3), prophylaxis with extensive DVT (n=3), trauma (n=13) and other (n=4).
Retrieval was not attempted in 15 patients due to the continued need for permanent implantation of the filter. A total of 26 attempted retrievals in 26 patients were successful. [n= number of filters retrieved] Retrieval of filter immediately after deployment at Day 0 (n=1), Day 2 (n=1), Day 7 (n=1), Day 9 (n=3), Day 10 (n=6), Day 11(n=2), Day 12 (n=1), Day 13 (n=4), Day 14 (n=6), Day 20 (n=1). No adverse events were reported in the retrieved filter group. 23 patients in whom a filter was retrieved were followed for three months post retrieval with no abnormalities reported. Results from the clinical study showed that the filter could be safely retrieved up to 14 days or longer in patients who no longer required an inferior vena cava filter. Time to retrieval ranged from 2-20 days with a mean implantation time of 11.4 days.
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DEPARTMENT OF HEALTH & HUMAN SERVICES
Image /page/2/Picture/1 description: The image shows the seal of the U.S. Department of Health and Human Services. The seal features a stylized eagle with three stripes representing the three levels of government: federal, state, and local. The eagle is encircled by the words "DEPARTMENT OF HEALTH & HUMAN SERVICES • USA". The seal is black and white.
Public Health Service
OCT 3 1 2003
Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850
Cook Incorporated c/o Ms. Jennifer J. Bosley Regulatory Affairs Coordinator P.O. Box 489 Bloomington, IN 47402-0489
Re: K032426
Günther Tulip™ Vena Cava MReye® Filter and Retrieval Set Regulation Number: 21 CFR 870.3375 Regulation Name: Cardiovascular intravascular filter Regulatory Class: Class II Product Code: DTK Dated: August 5, 2003 Received: August 6, 2003
Dear Ms. Bosley:
We have reviewed your Section 510(k) premarket notification of intent to market the device referenced above and have determined the device is substantially equivalent (for the indications for use stated in the enclosure) to legally marketed predicate devices marketed in interstate commerce prior to May 28, 1976, the enactment date of 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 adulteration.
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. Jennifer J. Bosley
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 (OS) 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 (301) 594-4646. 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/dsma/dsmamain.html
Sincerely vours.
Ashley B. Boane
Image /page/3/Picture/5 description: The image shows a signature in black ink on a white background. The signature appears to be stylized and cursive, with looping strokes and connected letters. The overall impression is that of a quick, fluid, and practiced signature.
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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### Indications for Use Statement
#### K032426 510(k) Number (if known): ____
Günther Tulip™ Vena Cava Filter and Retrieval Set Device Name:
#### Filter Set
The Günther Tulip™ Vena Cava Filter Set is indicated for the prevention of recurrent pulmonary embolism via placement in the vena cava in the following situations:
- Pulmonary thromboembolism when anticoagulant therapy is contraindicated; .
- Failure of anticoagulant therapy in thromboembolic diseases; .
- Emergency treatment following massive pulmonary embolism where anticipated benefits of . conventional therapy are reduced; and
- Chronic, recurrent pulmonary embolism where anticoagulant therapy has failed or is . contraindicated.
The Günther Tulip™ Vena Cava Filter may be retrieved according to the instructions supplied in the section labeled: Optional Retrieval Procedure.
#### Retrieval Set
The Günther Tulip™ Vena Cava Filter Retrieval Set has been designed for retrieval of an implanted Günther Tulip™ Vena Cava Filter in patients who no longer require a filter. Retrieval of the filter can be performed only by jugular approach.
# PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IF NEEDED
Concurrence of CDRH, Office of Device Evaluation (ODE)
Prescription Use_ (Per 21 CFR 801.109)
OR
Over-The-Counter Use (Optional Format 1-2-96)
Ashley B. Boane
(Division Sign-Off)
Division of Cardiovascular Devices
510(k) Number K032426
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.