The dual lumen ureteral catheter is designed for percutaneous and THC uddi lamon aretoral os indicated as a conduit for multiple uses including, but not limited to, ureteral dilation, stone displacement, including, but not limited tial/anesthetic agents and guidewire placement.
Device Story
Dual Lumen Catheter is a ureteral catheter featuring a hollow plastic tube with a flexible tip; designed for insertion into the ureter. Device incorporates two lumens to facilitate simultaneous or sequential passage of guidewires and injection of contrast or anesthetic agents. Operated by clinicians in a clinical setting. Features female luer lock Tuohy-Borst adaptors for connection to external equipment. Soft tip design protects tissue during passage. Modifications from predicate include addition of second lumen, change in material from polyurethane to polyethylene, shortened working length, and color change. Device assists in urological procedures by providing a conduit for therapeutic and diagnostic access.
Clinical Evidence
No clinical data. Substantial equivalence supported by biocompatibility testing and design/performance specifications comparison.
Indicated for patients requiring ureteral procedures including ureteral dilation, stone displacement, contrast/anesthetic agent injection, and guidewire placement.
Regulatory Classification
Identification
A urological catheter and accessories is a flexible tubular device that is inserted through the urethra and used to pass fluids to or from the urinary tract. This generic type of device includes radiopaque urological catheters, ureteral catheters, urethral catheters, coudé catheters, balloon retention type catheters, straight catheters, upper urinary tract catheters, double lumen female urethrographic catheters, disposable ureteral catheters, male urethrographic catheters, and urological catheter accessories including ureteral catheter stylets, ureteral catheter adapters, ureteral catheter holders, ureteral catheter stylets, ureteral catheterization trays, and the gastro-urological irrigation tray (for urological use).
Predicate Devices
Flexible Tip (open or closed) Ureteral Catheter (K930483)
Submission Summary (Full Text)
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Dual Lumen Catheter ACMI Corporation 136 Turnpike Road Southborough, MA 01772
MAR 3 - 2005
Special 510(k) Notification Summary of Safety and Effectiveness Dec 27, 2004
### 510(k) Summary of Safety and Effectiveness ACMI Corporation Dual Lumen Catheter
K043581
Pg 1 of 3
#### General Information
Manufacturer:
ACMI Corporation 136 Turnpike Rd. Southborough, MA 01772-2104
Establishment Registration Number:
2020483
Contact Person:
Graham A.L. Baillie Senior Regulatory Affairs Specialist
Date Prepared:
December 27, 2004
Device Description
Classification Name:
Urological catheter and accessories (21 CFR 876.5130), Class II
Trade Name:
Dual Lumen Catheter
Generic/Common Name:
Ureteral Catheter
# Predicate Device
K930483 Ureteral Catheter
(The Flexible Tip (open or closed) Ureteral Catheter)
# Intended Uses
Dual Lumen Catheter has multiple uses, including ureteral dilation, anesthetic injection, stone displacement, contrast injection, and safe wire/guidewire placement.
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Southborough, MA 01772
Special 510(k) Notification Summary of Safety and Effectiveness Dec 27, 2004
Kou358i
pg 243
#### Product Description
Like the predicate Flexible Tip (open or closed) Ureteral Catheter, the Dual Lumen Catheter is a ureteral catheter with a flexible tip used for guidewire placement and for contrast injection.
The Dual Lumen Catheter incorporates the same technological characteristics as the predicate device. The proposed Dual Lumen Catheter raises no new questions of safety or effectiveness. Biocompatibility testing confirms that the different materials of construction (from polyurethane to polyethylene) present no new safety concerns. The method of manufacture (extrusion) is the same for both the predicate and the proposed device. The new material used in the Dual Lumen Catheter has been used in other legally marketed devices within the same classification regulation for the same intended use and has had an established history of successful clinical application in Urology.
Like the predicate device, the Dual Lumen Catheter features a hollow plastic tube placed inside the ureter, which, as in the predicate device, allows for the passage of guidewires and for the injection of fluid. Both catheters are fitted with female luer lock Tuohy-Borst adaptors, and feature soft tips to ensure protection of tissue during passage.
This Special 510(k) proposes an addition of the second lumen to the catheter, a modification of the material characteristics, shortening of the working length and a change of color of the device. The indications for use, principles of operation, and diameter of the Dual Lumen Catheter remain the same as in the predicate device.
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Dual Lumen Catheter ACMI Corporation 136 Turnpike Road Southborough, MA 01772 Special 510(k) Notification Summary of Safety and Effectiveness Dec 27, 2004
## Summary of Safety and Effectiveness
K 043581
pg 3183
The proposed modifications for the Dual Lumen Catheter, as described in this submission, are substantially equivalent to the predicate device. The proposed modification in design specifications, performance specifications, and dimensional specifications are not substantial changes or modifications, and do not significantly affect the safety or efficacy of the device.
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Image /page/3/Picture/1 description: The image shows the logo for the U.S. Department of Health & Human Services. The logo consists of a stylized eagle symbol on the right. To the left of the eagle, the text "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" is arranged in a circular fashion.
MAR 3 - 2005
Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850
Mr. Graham Baillie Quality Assurance Manager ACMI Corporation 3037 Mt. Pleasant Street RACINE WI 53404
K043581 Re:
Trade/Device Name: Dual Lumen Catheter Regulation Number: 21 CFR §876.5130 Regulation Name: Urological catheter and accessories Regulatory Class: II Product Code: 78 EYB Dated. December 27, 2004 Received: December 28, 2004
Dear Mr. Baillie:
We have reviewed your Section 510(k) premarket notification of intent to market the device we nave reviewed your becemined the device is substantially equivalent (for the indications for use stated in the enclosure) to legally marketed predicate devices marketed in interstate for use stated in the encreated of the enactment date of the Medical Device Amendments, or to conniner or prior to may 20, 2011 accordance with the provisions of the Federal Food, Drug, devices mat nave occh receasined require approval of a premarket approval application (PMA). You may, therefore, market the device, subject to the general controls provisions of the Act. The r ou may, aterere, mains of the Act include requirements for annual registration, listing of general volided by provisions 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 your device is easonial 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.
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 that a Dederal statutes and regulations administered by other Federal agencies. You must of any I ederal battatos and requirements, including, but not limited to: registration and listing (21 CFR Part 807); labeling (21 CFR Part 801); good manufacturing practice requirements as set (21 CFR Part 007), laborning (21 Segulation (21 CFR Part 820); and if applicable, the electronic forth in the quality of over (sions (sections 531-542 of the Act); 21 CFR 1000-1050.
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This letter will allow you to begin marketing your device as described in your Section 510(k)
10 leval This letter will allow you to begin marketing your antial equivalence of your device to a legally
premarket notification. The FDA finding of substantial equivaleered this pe premarket notification. The FDA inding of substantial or 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 If you desire specific advice for your device of our laceming regulation (
contact the Office of Compliance at one of the following numbers, based on the regulation number at the top of this letter:
| 21 CFR 876.xxxx | (Gastroenterology/Renal/Urology) | 240-276-0115 |
|-----------------|----------------------------------|--------------|
| 21 CFR 884.xxxx | (Obstetrics/Gynecology) | 240-276-0115 |
| 21 CFR 892.xxxx | (Radiology) | 240-276-0120 |
| Other | | 240-276-0100 |
Also, please note the regulation entitled, "Misbranding by reference to prematic notification" (21 CFR Also, please note the regulation entitled, "Misonalians on your responsibilities under the Act from the (80 807.97). You may obtain other gelleral manon on your copied.
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 yours,
Nancy C. Brogdon
Nancy C. Brogdon Director, Division of Reproductive, Abdominal, and Radiological Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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Dual Lumen Catheter ACMI Corporation 136 Turnpike Road Southborough, MA 01772
Special 510(k) Notification Statement of Intended Use Dec 27, 2004
Device Name: Dual Lumen Catheter
510(k) Number:
Indications for use:
The dual lumen ureteral catheter is designed for percutaneous and THC uddi lamon aretoral os indicated as a conduit for multiple uses including, but not limited to, ureteral dilation, stone displacement, including, but not limited tial/anesthetic agents and guidewire placement.
(PLEASE DO NOT WRITE BELOW THIS LINE - CONTINUE ON ANOTHER PAGE IF NEEDED)
Concurrence of CDRH, Office of Device Evaluation (ODE)
Prescription Use: __ X __
Over-the-Counter Use: ________________________________________________________________________________________________________________________________________________________ OR
(Per 21 CFR 801.109)
David W. Lynn
(Division Sign-Off) Division of Reproductive, Abdominal and Radiological Devices 510(k) Number
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.