The device is intended for intracavitary brachytherapy for cancer treatment of the cervix and the endometrium. Optional needles can be placed for interstitial brachytherapy.
Device Story
Geneva is a gynecological applicator for intracavitary brachytherapy; used for cervix and endometrium cancer treatment. Device consists of tubes and ovoids; guides radioactive source from afterloader to target volume. Optional needles allow interstitial brachytherapy. Used in hospitals by qualified physicians; compatible with Nucletron remote afterloader systems. Operates in MR, CT, X-ray, and US environments. Provides path for isotope source to reach target volume; facilitates radiation delivery to tumor sites. Benefits patients by enabling precise, localized radiation therapy.
Clinical Evidence
Bench testing only. Validation performed at a hospital site under simulated clinical conditions with clinical personnel. Testing included usability validation, reprocessing process validation, and biological evaluation. Results demonstrated suitability for intended use, clinical acceptance, and performance meeting requirements in MR, CT, X-ray, and US environments.
Technological Characteristics
Tandem and ovoid type applicator with compatible interstitial needles. Materials are identical to the predicate device. Compatible with Nucletron remote afterloader systems. Designed for use in MR, CT, X-ray, and US imaging environments.
Indications for Use
Indicated for intracavitary brachytherapy for cancer treatment of the cervix and endometrium; optional interstitial needles for interstitial brachytherapy.
Regulatory Classification
Identification
A remote controlled radionuclide applicator system is an electromechanical or pneumatic device intended to enable an operator to apply, by remote control, a radionuclide source into the body or to the surface of the body for radiation therapy. This generic type of device may include patient and equipment supports, component parts, treatment planning computer programs, and accessories.
Predicate Devices
Utrecht Interstitial CT/MR Applicator Set (K091154)
Submission Summary (Full Text)
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July 16, 2020
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Nucletron BV % Rigo Meens Head of QA Waardgelder 1 Veenendaal, Utrecht 3905 TH THE NETHERLANDS
Re: K201272
Trade/Device Name: Geneva Regulation Number: 21 CFR 892.5700 Regulation Name: Remote controlled radionuclide applicator system Regulatory Class: Class II Product Code: JAO Dated: March 20, 2020 Received: May 12, 2020
Dear Rigo Meens:
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. Although this letter refers to your product as a device, please be aware that some cleared products may instead be combination products. The 510(k) Premarket Notification Database located at https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfpmn/pmn.cfm identifies combination product submissions. 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.
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) for
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devices or postmarketing safety reporting (21 CFR 4, Subpart B) for combination products (see https://www.fda.gov/combination-products/guidance-regulatory-information/postmarketing-safety-reportingcombination-products); good manufacturing practice requirements as set forth in the quality systems (QS) regulation (21 CFR Part 820) for devices or current good manufacturing practices (21 CFR 4, Subpart A) for combination products; 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 https://www.fda.gov/medical-device-safety/medical-device-reportingmdr-how-report-medical-device-problems.
For comprehensive regulatory information about mediation-emitting products, including information about labeling regulations, please see Device Advice (https://www.fda.gov/medicaldevices/device-advice-comprehensive-regulatory-assistance) and CDRH Learn (https://www.fda.gov/training-and-continuing-education/cdrh-learn). 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 (https://www.fda.gov/medical-device-advice-comprehensive-regulatoryassistance/contact-us-division-industry-and-consumer-education-dice) for more information or contact DICE by email (DICE@fda.hhs.gov) or phone (1-800-638-2041 or 301-796-7100).
Sincerely.
For
Thalia T. Mills, Ph.D. Director Division of Radiological Health OHT7: Office of In Vitro Diagnostics and Radiological Health Office of Product Evaluation and Quality Center for Devices and Radiological Health
Enclosure
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#### Indications for Use Statement A4.
See next page
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DEPARTMENT OF HEALTH AND HUMAN SERVICES Food and Drug Administration
# Indications for Use
510(k) Number (if known)
K201272
Device Name Geneva
Indications for Use (Describe)
The device is intended for intracavitary for cancer treatment of the cervix and the endometrium. Optional needles can be placed for interstitial brachytherapy.
Type of Use (Select one or both, as applicable)
X Prescription Use (Part 21 CFR 801 Subpart D)
O Over-The-Counter Use (21 CFR 801 Subpart C)
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#### 510(k) Summary A5.
See next pages
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#### K201272
20 March 2020
# Submitter of 510(k):
510(k) Summary
| Submitter of 510(k): | |
|----------------------|----------------------------------------------------|
| Company name: | Nucletron B.V. |
| Registration number: | 611894 |
| Address: | Waardgelder 1, 3905 TH Veenendaal, The Netherlands |
| Phone: | +31 318 557 133 |
| Correspondent: | Leidimar Guararima |
#### Device Name:
Trade/Proprietary Name: Common/Usual Name: Classification Name: Classification: Product code:
Geneva Brachytherapy Applicator Remote controlled radionuclide applicator system 21CFR892.5700, Class II JAQ
# Legally Marketed Device(s)
Our device is substantially equivalent to the following legally marketed predicate device:
| Manufacturer | Device | 510(K)# | Device classification |
|----------------|----------------------------------------------|---------|-----------------------|
| Nucletron B.V. | Utrecht Interstitial CT/MR<br>Applicator Set | K091154 | Class II |
The Geneva is a gynecological applicator for intracavitary brachytherapy with the option for interstitial brachytherapy treatment. It can be used for the treatment of the cervix and endometrium. The applicator consists of tubes and ovoids, guiding the radioactive source of the afterloader to the target volume. Compatible components can be combined to reach a wide range of target areas.
## Indications for use:
The device is intended for intracavitary brachytherapy for cancer treatment of the cervix and the endometrium. Optional needles can be placed for interstitial brachytherapy.
The indications for use for the Geneva are identical to the indications for use of the legally marketed above-mentioned predicate device.
## Summary of technological considerations:
The subject device and the predicate devices are intended to provide a path for the isotope source to travel to the target volume. The devices are used in the hospital by qualified physicians. Geneva is used in the same anatomical sites as the predicate device and is made of the same materials.
The devices are compatible with Nucletron remote afterloader systems and accessories. Section C provides an overview of the similarities and differences of Geneva with the predicate device.
The subject device is tandem and ovoid type applicator with compatible interstitial needles. Geneva is identical in principle technology, clinical function and technical and biological characteristics to the predicate device design fits in the same
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clinical workflow as the predicate device. As a result, it is determined that the Geneva is substantially equivalent to the legally marketed predicate device.
# Summary of testing:
Bench testing was performed at a hospital site, under simulated clinical conditions and with the involvement of clinical personnel but excluding the delivery of treatment to patients. Experienced users reviewed the device design and executed validation tests. The test results demonstrated the suitability of the device to its intended use and user needs and demonstrated clinical acceptance of the device.
Usability testing demonstrated that the device can be used by the intended users, under simulated clinical conditions, without serious use errors or problems. Validation of reprocessing processes and biological evaluation was performed. The device can be used in the MR, CT, X-ray and US environments. Bench testing (similar to bench testing done to the Legally Marketed Device) shows that the device meets its performance requirements.
The results of the testing provided in this submission adequately demonstrate that the Geneva performs as defined in the requirements, meets clinical expectations and is safe and effective for clinical use.
## Conclusion:
As a result, it was determined that Geneva is substantially equivalent in intended use, function, design and technological characteristics to the legally marketed predicate device.
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Learn the FDA Browser
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.