GENETRA™ with activities from 0.1 to 5.0 mCi per centimeter length is indicated for temporary or permanent interstitial implantation or surface application to treat selected localized tumors. They can be used as either primary treatment or as treatment for residual disease after excision of primary or recurrent tumors. GENETRA may be used concurrently with or following treatment with other interventions, such as external beam therapy, hyperthermia, or chemotherapy. Tumors of the head, neck, lung, pancreas, prostate and other accessible tumors are commonly treated.
Device Story
GENETRA™ is a brachytherapy radionuclide source consisting of a coiled rhodium wire containing Palladium-103 (Pd-103). The rhodium matrix provides radiopacity. The device is a naturally sealed source delivered via a 19-gauge needle and stylet to the tumor site. It emits 20-23 keV x-rays for therapeutic radiation. The device is supplied non-sterile and requires steam autoclave sterilization by the end user. It is intended for clinical use by physicians for the treatment of localized tumors. The device provides localized radiation therapy, potentially reducing tumor size or treating residual disease.
Clinical Evidence
Bench testing only. Performance evaluated via radiation energy verification, source strength calibration, dose comparison, and sealed source integrity testing. Compliance with standards including ANSI N43.6-1997, ANSI N44.1-1973, ANSI N44.2-1973, ISO 9978:1992, and ISO 10993-1:1992.
Technological Characteristics
Sealed brachytherapy source; rhodium wire matrix; Palladium-103 radionuclide; 20-23 keV x-ray emission; 19-gauge delivery needle/stylet; glass barrel/stainless steel cartridge packaging; steam autoclave sterilization; compliant with ANSI N43.6, ANSI N44.1, ANSI N44.2, ISO 9978, and ISO 10993-1.
Indications for Use
Indicated for patients with localized tumors of the head, neck, lung, pancreas, prostate, or other accessible sites requiring temporary or permanent interstitial implantation or surface application of radiation. Used as primary treatment or for residual disease post-excision; may be used with external beam therapy, hyperthermia, or chemotherapy.
Regulatory Classification
Identification
A radionuclide brachytherapy source is a device that consists of a radionuclide which may be enclosed in a sealed container made of gold, titanium, stainless steel, or platinum and intended for medical purposes to be placed onto a body surface or into a body cavity or tissue as a source of nuclear radiation for therapy.
Special Controls
*Classification.* Class II (special controls). A prostate seeding kit intended for use with a radionuclide brachytherapy source only is exempt from the premarket notification procedures in subpart E of part 807 of this chapter subject to the limitations in § 892.9.
{0}------------------------------------------------
KDI 3660
GENETRA ™
Special 510(K) Submission
RadioMed Corporation November 2, 2001
DEC 0 5 2001
#### Section F
#### 510k Summary
1. Sponsor Name
RadioMed Corporation One Industrial Way Tyngsboro, Massachusetts 01879-1400
Telephone: (978) 649-0300 voice (978) 649-0333 fax
Contact Individual: Gordon Roberts
- 2. Device Name
| Proprietary Name: | GENETRA™ |
|----------------------|-----------------------------------|
| Common/Usual Name: | Brachytherapy Radionuclide Source |
| Classification Name: | Brachytherapy Radionuclide |
- 3. Identification of Predicate or Legally Marketed Device The predicate device for GENETRA™ is the RadioMed™ Source K001070.
- 4. Device Description
GENETRA ™ utilizes Pd-103 as the radionuclide for brachytherapy. GENETRA™ exists in the form of a coiled rhodium wire. The rhodium matrix also provides the radiopacity of the device. GENETRA™ is a naturally sealed source in the form of a wire.
GENETRA™ is packaged non-sterile, single use, and is to be sterilized by the end user in accordance with a validated sterilization process. Sterilization is accomplished by exposure to steam autoclave.
GENETRA™ will be manufactured, labeled and packaged under GMP controls. Upon completion of the manufacturing and assembly process the device will be inspected to assure compliance to specifications. The devices will be tested in accordance with Standard Operating Procedures.
The sources are delivered using a 19 gauge needle and stylet. Currently marketed Brachytherapy seeds are delivered using a 17 or 18 gauge needle and stylet.
{1}------------------------------------------------
### 5. Intended Use
- The intended use and indications for use of the modified device as described in its labeling have not changed.
GENETRA™ with activities from 0.1 to 5.0 mCi per centimeter length is indicated for temporary or permanent interstitial implantation or surface application to treat selected localized tumors. They can be used as either primary treatment or as treatment for residual disease after excision of primary or recurrent turnors. GENETRA may be used concurrently with or following treatment with other interventions, such as external beam therapy, hyperthermia, or chemotherapy. Tumors of the head, neck, lung, pancreas, prostate and other accessible tumors are commonly treated.
- 6. Comparison of Technological Characteristics
The fundamental scientific technology of the modified device has not changed.
RadioMed™ Source Predicate Device:
K001070 510(k) Number:
The design of the predicate RadioMed 104 Source is identical to GENETRA™ . This is a sealed source in the form of a wire from which to deliver a therapeutic dosage of radioactive energy.
The energy emitted for GENETRA™ and the RadioMed™ Source is identical: 20-23 keV x-rays.
The materials that make up the components of the predicate RadioMed™ Source and GENETRA™ are identical. The packaging has been modified to utilize a glass barrel with the original stainless steel cartridge. GENETRA™ uses rhodium as did the RadioMed™ Source.
The radionuclide for GENETRA™ is Palladium - 103, which is the same as the radionuclide used for the predicate RadioMed™ Source.
The delivery of the predicate RadioMed TM Source is through a 17 or 18-gauge needle and stylet.
{2}------------------------------------------------
## 7. Performance Testing
Summary of standards achieved:
FDA QSR 21 CFR Part 820 Good Manufacturing Practices ISO 10993-1 1992 (E) Biological Evaluation of Medical Devices ANSI N43.6-1997: Classification of sealed radioactive sources ANSI N44.1-1973 Integrity and Test Specifications for selected Brachytherapy Sources ANSI N44.2-1973 Leak testing radioactive brachytherapy sources ISO 9978: 1992(E) "Radiation protection - Sealed radioactive sources - Leakage test methods". AAMI Standard 11134-1994 Recommended practice for Steam Autoclave
The "performance" of GENETRA™ is subdivided into four categories
- 1. Radiation Energy
- 2. Source Strength Measurement: Calibration and Calibration Accuracy
- 3. Dose Comparison
- 4. Sealed Source Testing
{3}------------------------------------------------
Image /page/3/Picture/1 description: The image shows the logo for the U.S. Department of Health & Human Services. The logo is a circular seal with the words "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" around the perimeter. Inside the circle is an abstract symbol that resembles a stylized caduceus, which is a traditional symbol of medicine and healthcare. The symbol consists of a staff with two snakes coiled around it, and a pair of wings at the top.
Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850
# DEC 0 5 2001
Mr. Gordon Roberts Quality Assurance and Regulatory Affairs Manager RadioMed Corporation One Industrial Way Tyngsboro, MA 01879
Re: K013660
Trade/Device Name: GENETRA™ Regulation Number: 21 CFR 892.5730 Regulation Name: Radionuclide brachytherapy source Regulatory Class: II Product Code: 90 KXK Dated: November 2, 2001
Received: November 6, 2001
Dear Mr. Roberts:
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 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); 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.
{4}------------------------------------------------
This letter will allow you to begin marketing your device as described in your 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 one of the following numbers, based on the regulation number at the top of this letter:
| 8xx.1xxx | (301) 594-4591 |
|----------------------------------|----------------|
| 876.2xxx, 3xxx, 4xxx, 5xxx | (301) 594-4616 |
| 884.2xxx, 3xxx, 4xxx, 5xxx, 6xxx | (301) 594-4616 |
| 892.2xxx, 3xxx, 4xxx, 5xxx | (301) 594-4654 |
| Other | (301) 594-4692 |
Additionally, for questions on the promotion and advertising of your device, please contact the Office of Compliance at (301) 594-4639. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR Part 807.97). Other general information on your responsibilities under the Act may be obtained 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 yours,
Nancy C. Snogdon
Nancv C. Brogdon Director, Division of Reproductive, Abdominal, and Radiological Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
{5}------------------------------------------------
K013660
RadioMed Corporation November 2, 2001
GENETRA Special 510(K) Submission
Section E
## Indications For Use
indications For USE
GENETRA ™ with activities from 0.1 to 5.0 mCi per centimet selected lasted for temporary of GENETRA" with activities from 0.1 to 5.0 met per called bocalized tocalized tumors. They can be
permanent interstitial implantation or surface application of primary or permanent interstitudi implanation of surface uppressional disease after excision of primary of used ellifer as the primary treatment of as a career may with or following treatment with other recurrent unfors. micil ventions, such as external secure assible turnors are commonly treated.
Prescription Use
Nancy Broglon
(Division Sign-Off)
Division of Reproductive, Abdominal,
and Radiological Devices
510(k) Number K013660
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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.