Ureteral catheters are indicated for access and catheterization of the urinary tract, including applications: - Delivery of contrast media - Drainage of fluids from the urinary tract - Delivery of irrigation fluids to the urinary tract - Navigation of a tortuous ureter - Access, advancement, or exchange of wire guides (open-ended catheters only) The Pediatric Ureteral Catheter is indicated for access and catheterization of the urinary tract in pediatric patients, including the following applications: - Delivery of contrast media - Drainage of fluids from the urinary tract - Delivery of irrigation fluids to the urinary tract - Navigation of a tortuous ureter
Device Story
Ureteral catheters facilitate urinary tract access and navigation; used for contrast delivery, fluid drainage, irrigation, and wire guide exchange. Devices are sterile, single-use, ranging 10-125 cm in length. Operated by physicians in clinical settings using standard endoscopic techniques. Catheters are inserted into the ureter to navigate tortuous anatomy; provide a conduit for fluids or wire guides. Benefits include improved access to the upper urinary tract for diagnostic or therapeutic procedures. Output is the physical placement of the catheter, allowing for fluid flow or guide wire advancement.
Clinical Evidence
Bench testing only. No clinical data. Performance testing included tensile strength, leakage/lumen blockage, radiopacity, kink radius, and catheter-hub bond strength. Biocompatibility testing included cytotoxicity (ISO MEM Elution), sensitization (Guinea Pig Maximization), and irritation/intracutaneous reactivity. All predetermined acceptance criteria were met.
Technological Characteristics
Materials: Radiopaque polyvinyl chloride, polyurethane, or polytetrafluoroethylene. Form factor: 3-9 Fr diameter, 10-125 cm length. Configurations: Open or closed-ended, various tip designs (whistle, spiral, round, flexi-tip). Sterile, single-use. No energy source or software.
Indications for Use
Indicated for urinary tract access and catheterization in pediatric and adult patients for contrast media delivery, fluid drainage, irrigation, navigation of tortuous ureters, and wire guide exchange (open-ended models).
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).
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Image /page/0/Picture/0 description: The image contains the logo of the U.S. Food and Drug Administration (FDA). On the left is the Department of Health & Human Services logo. To the right of that is the FDA logo, which is a blue square with the letters "FDA" in white. To the right of the FDA logo is the text "U.S. FOOD & DRUG ADMINISTRATION" in blue.
February 1, 2018
Cook Incorporated Carly Powell Regulatory Affairs Specialist 750 Daniels Way, P.O. Box 489 Bloomington, IN 47402
Re: K171662
Trade/Device Name: Open-End Ureteral Catheter, Open-End Ureter Sof-Flex, EchoTip Open-End Ureteral Catheter, Open-End Flexi-Tip Ureteral Catheter, Flexi-Tip Ureteral Catheter (Closed End), Whistle Tip Ureteral Catheter, Round Tip Ureteral Catheter, Spiral Tip Ureteral Access Catheter, Pediatric Ureteral Catheter Regulation Number: 21 CFR& 876.5130 Regulation Name: Urological Catheter and Accessories Regulatory Class: II Product Code: KOD Dated: December 19, 2017 Received: December 20, 2017
## Dear Carly Powell:
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. Please note: CDRH does not evaluate information related to contract liability warranties. We remind you, however, that device labeling must be truthful and not misleading.
If your device is classified (see above) into either class II (Special Controls) or class III (PMA), it may be subject to 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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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); medical device reporting of medical device-related adverse events) (21 CFR 803); 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.
Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR Part 807.97). For questions regarding the reporting of adverse events under the MDR regulation (21 CFR Part 803), please go to http://www.fda.gov/MedicalDevices/Safety/ReportaProblem/default.htm for the CDRH's Office of Surveillance and Biometrics/Division of Postmarket Surveillance.
For comprehensive regulatory information about mediation-emitting products, including information about labeling regulations, please see Device Advice (https://www.fda.gov/MedicalDevices/DeviceRegulationandGuidance/) and CDRH Learn (http://www.fda.gov/Training/CDRHLearn). Additionally, you may contact the Division of Industry and Consumer Education (DICE) to ask a question about a specific regulatory topic. See the DICE website (http://www.fda.gov/DICE) for more information or contact DICE by email (DICE@fda.hhs.gov) or phone (1-800-638-2041 or 301-796-7100).
Sincerely.
# Benjamin R. Fisher -S
Benjamin R. Fisher, Ph.D. Director Division of Reproductive, Gastro-Renal, and Urological Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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# Indications for Use
#### 510(k) Number (if known) K171662
#### Device Name
Open-End Ureteral Catheter, Open-End Catheter Sof-Flex, EchoTip Open-End Ureteral Catheter, Open-End Flexi-Tip Ureteral Catheter, Flexi-Tip Ureteral Catheter (Closed End), Whistle Tip Ureteral Catheter, Spiral Tip Ureteral Access Catheter, Pediatric Ureteral Catheter
#### Indications for Use (Describe)
Ureteral catheters are indicated for access and catheterization of the urinary tract, including applications:
- Delivery of contrast media
- Drainage of fluids from the urinary tract
- · Delivery of irrigation fluids to the urinary tract
- · Navigation of a tortuous ureter
- · Access, advancement, or exchange of wire guides (open-ended catheters only)
The Pediatric Ureteral Catheter is indicated for access and catheterization of the urinary tract in pediatric patients, including the following applications:
- Delivery of contrast media
- Drainage of fluids from the urinary tract
- · Delivery of irrigation fluids to the urinary tract
- · Navigation of a tortuous ureter
| Type of Use (Select one or both, as applicable) | |
|-------------------------------------------------|--|
|-------------------------------------------------|--|
Prescription Use (Part 21 CFR 801 Subpart D)
Over-The-Counter Use (21 CFR 801 Subpart C)
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Image /page/3/Picture/1 description: The image shows the logo for Cook Medical. The logo is set against a red background. The word "COOK" is written in white, block letters, with the registered trademark symbol next to it. Below "COOK" is the word "MEDICAL" in white, block letters, set against a black background.
### 2.0 510(k) Summary
50 DANIFIS WAY, P.O.
# Ureteral Catheters As required by 21 CFR 807.92 Date Prepared: January 31, 2018
| Submitted By: | |
|----------------------|-------------------------------------------|
| Submission: | Traditional 510(k) Premarket Notification |
| Applicant: | Cook Incorporated |
| Contact: | Carly Powell |
| Applicant Address: | Cook Incorporated |
| | 750 Daniels Way |
| | Bloomington, IN 47404 |
| Contact Phone: | (812) 339-2235 x104913 |
| Contact Fax: | (812) 332-0281 |
| Device Information: | |
| Trade Name: | Open-End Ureteral Catheter, |
| | Open-End Ureteral Catheter Sof-Flex, |
| | EchoTip Open-End Ureteral Catheter, |
| | Open-End Flexi-Tip Ureteral Catheter, |
| | Flexi-Tip Ureteral Catheter (Closed End), |
| | Whistle Tip Ureteral Catheter, |
| | Round Tip Ureteral Catheter, |
| | Spiral Tip Ureteral Access Catheter, |
| | Pediatric Ureteral Catheter |
| Common Name: | Catheter, Urological |
| Classification Name: | Urological catheter and accessories |
| Regulation, Class: | 21 CFR §876.5130, Class II |
| Product Code, Panel: | KOD, Gastroenterology/Urology |
## Predicate Devices:
- Primary predicate device: Bard TigerTail Ureteral Catheter (K033719)
- Secondary predicate device: Porges Ureteral Catheters (K021856)
# Device Description:
The Ureteral Catheter family is comprised of nine different types of Ureteral Catheters. The types of catheters include: Open-End Ureteral Catheter, Open-End Ureteral Catheter Sof-Flex, EchoTip Open-End Ureteral Catheter, Open-End Flexi-Tip Ureteral Catheter, Flexi-Tip Ureteral Catheter (Closed End), Whistle Tip Ureteral Catheter, Round Tip Ureteral Catheter, Spiral Tip Ureteral Access Catheter, and Pediatric Ureteral Catheter.
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The Ureteral Catheters range in length from 10 to 125 cm. The catheters may be closed or open-ended. The Ureteral Catheters are sterile, single-use devices.
## Indications for Use:
Ureteral catheters are indicated for access and catheterization of the urinary tract, including the following applications:
- · Delivery of contrast media
- · Drainage of fluids from the urinary tract
- · Delivery of irrigation fluids to the urinary tract
- Navigation of a tortuous ureter
- · Access, advancement, or exchange of wire guides (open-ended catheters only)
The Pediatric Ureteral Catheter is indicated for access and catheterization of the urinary tract in pediatric patients, including the following applications:
- Delivery of contrast media
- · Drainage of fluids from the urinary tract
- · Delivery of irrigation fluids to the urinary tract
- · Navigation of a tortuous ureter
## Comparison to Predicate Devices:
The subject devices have similar indications for use, methods of operation, and fundamental technological characteristics as the predicate devices due to the similarities with their intended uses. Differences between the subject device and the predicate devices include dimensional variations and slight variations in materials. Characteristics of the subject device that differ from the predicate devices are supported by testing. These differences do not raise any new questions of safety and/or effectiveness. The substantial equivalence comparison of the subject device to the predicates is provided in the following table.
| | PRIMARY PREDICATE<br>DEVICE | SECONDARY<br>PREDICATE DEVICE | SUBJECT DEVICE |
|------------------------|------------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------|
| | Bard - TigerTail Ureteral<br>Catheter | Porges Ureteral Catheters | Ureteral Catheters |
| 510(k)<br>Number | K033719 | K021856 | Subject of Submission |
| Manufacturer | C.R. Bard Inc. | Porges S.A. | Cook Incorporated |
| Regulation | 21 CFR §876.5130 | 21 CFR §876.5130 | Identical |
| Product Code | KOD | EYB | Identical to primary predicate |
| Classification<br>Name | Catheter, Urological | Catheter, Ureteral, Gastro-<br>Urology | Identical to primary predicate |
| Classification | II | Identical | Identical |
| Indications<br>for Use | The Bard TigerTail Ureteral<br>Catheter is intended to<br>facilitate drainage and<br>retrograde pyelogram of the | Ureteral catheterization:<br>-Drainage catheters<br>-Catheters for retrograde<br>ureteropyelography | Ureteral catheters are indicated for<br>access and catheterization of the<br>urinary tract, including the following<br>applications: |
### Substantial Equivalence Comparison
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| | PRIMARY PREDICATE<br>DEVICE | SECONDARY<br>PREDICATE DEVICE | SUBJECT DEVICE |
|--------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------|--------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| | Bard - TigerTail Ureteral<br>Catheter | Porges Ureteral Catheters | Ureteral Catheters |
| | upper urinary tract. This<br>catheter will allow access to<br>and navigation of a tortuous<br>ureter using standard<br>endoscopic techniques. | -Interventional catheters | • Delivery of contrast media<br>• Drainage of fluids from the urinary<br>tract<br>• Delivery of irrigation fluids to the<br>urinary tract<br>• Navigation of a tortuous ureter<br>• Access, advancement, or exchange<br>of wire guides (open-ended catheters<br>only)<br>The Pediatric Ureteral Catheter is<br>indicated for access and<br>catheterization of the urinary tract in<br>pediatric patients, including the<br>following applications:<br>• Delivery of contrast media<br>• Drainage of fluids from the urinary<br>tract<br>• Delivery of irrigation fluids to the<br>urinary tract<br>• Navigation of a tortuous ureter |
| Catheter OD<br>(Fr size) | 4-6 Fr | 3-12 Fr | 3-9 Fr |
| Catheter<br>Length (cm) | 70 cm | Unknown | 10, 15, 70, 85, 120 |
| | Materials | | |
| Catheter<br>Material | Radiopaque Polyurethane | Radiopaque polymer-<br>polyvinyl chloride and<br>polyamide mixture | Radiopaque Polyvinyl chloride or<br>Polyurethane Radiopaque tubing or<br>Polytetrafluoroethylene |
| Components | The following components<br>may be included:<br>Adapter<br>Stylet/Wire | Unknown | Identical to primary predicate |
# Reference Devices:
In addition to the predicate devices, the following reference devices are used to help make a determination of substantial equivalence:
- The Rutner Universal Wedge Catheter (Cook Inc., K760858) .
- The C-Flex Ureteral Stent Set (Cook Inc., K162104) ●
# Performance Data:
The subject devices underwent the applicable testing listed below to ensure reliable design and performance under the testing parameters. Performance and biocompatibility
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testing were conducted in accordance with the following applicable FDA guidance documents to confirm the reliable performance of critical device characteristics.
Performance - Testing shows that the subject device conforms to the performance testing requirements based on intended use. All predetermined acceptance criteria were met.
| Test Performed | Guidance Document |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-------------------|
| Tensile Strength – Testing shows that there should be no fracture of catheter tips or<br>shafts during proper clinical use. | |
| Leakage and Lumen Blockage – Testing evaluated lumen blockage and leakage in a<br>pressurized flow test. Lumen patency, dimensional length, inner diameter, and outer<br>diameter were determined. | |
| Radiopacity – Testing shows that the mean radiopacity met the acceptance criteria and<br>evaluated radiopacity by subjecting the ureteral catheters to a comparative fluoroscopic<br>evaluation. | |
| Kink Radius – Testing determined the kink radius of the ureteral catheter tubing. | |
| Catheter-Hub Bond – Testing determined the tensile strength of the hub-to-shaft bond. | |
Biocompatibility – Testing shows that the subject device conforms to the biocompatibility requirements based on its intended use. All predetermined acceptance criteria were met.
| Testing Performed | Guidance Document |
|-------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Cytotoxicity – ISO MEM Elution | Use of International Standard<br>ISO 10993-1, "Biological<br>evaluation of medical devices<br>- Part 1: Evaluation and testing<br>within a risk management<br>process" |
| Sensitization – Guinea Pig Maximization | |
| Irritation/Intracutaneous Reactivity – Intracutaneous Study | |
All predetermined acceptance criteria were met.
# Conclusion:
The data included in this submission indicate that the subject devices do not raise new questions of safety or effectiveness compared to the predicate device. This supports a determination of substantial equivalence.
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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.
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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.
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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.
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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.
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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.
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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.
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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.
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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.
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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.