The Transem and EchoGen™ are catheters with angled or spherical tips for embryo transfer into the uterine cavity in the treatment of infertility. The Transem Stylets are intended to assist the insertion of the Transem or EchoGen™ catheters where the passage through the cervix is impeded.
Device Story
Transem and EchoGen™ are embryo transfer catheters used in clinical settings by fertility specialists. Devices feature angled or spherical tips; EchoGen™ variants include metallic marker bands for ultrasound visibility. Stylets are provided to assist insertion by maintaining catheter rigidity when cervical passage is difficult. Catheters are inserted into the uterine cavity to deliver embryos. Ultrasound guidance allows the physician to visualize the catheter tip during placement. The device facilitates the transfer process, potentially improving success rates in infertility treatment. All components are single-use and sterile.
Clinical Evidence
Bench testing only. Testing included biocompatibility (ISO 10993-5, -10), sterilization validation (ISO 11137-2), shelf-life (ISO 11607-1, ASTM F1980-07), and performance characteristics. Performance metrics included Mouse Embryo Assay (≥80% blastocyst rate at 96 hr), endotoxin levels (≤ 1.25 EU/device), air resistance, tensile strength, and ultrasound visibility. No clinical data presented.
Indicated for patients undergoing embryo transfer into the uterine cavity for infertility treatment. Stylets indicated for use when cervical passage is impeded.
Regulatory Classification
Identification
Assisted reproduction catheters are devices used in in vitro fertilization (IVF), gamete intrafallopian transfer (GIFT), or other assisted reproduction procedures to introduce or remove gametes, zygote(s), preembryo(s), and/or embryo(s) into or from the body. This generic type of device may include catheters, cannulae, introducers, dilators, sheaths, stylets, and component parts.
Special Controls
*Classification.* Class II (special controls) (mouse embryo assay information, endotoxin testing, sterilization validation, design specifications, labeling requirements, biocompatibility testing, and clinical testing).
Predicate Devices
Wallace (Sure View) Embryo Replacement Catheter and Trial Transfer Catheter (K033084)
Submission Summary (Full Text)
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Food and Drug Administration 10903 New Hampshire Avenue Document Control Center - WO66-G609 Silver Spring, MD 20993-0002
March 9, 2017
ORIGIO a/s Tove Kjaer Director, Corporate Regulatory Affairs Knardrupvej 2 Maaloev, 2760 Denmark
Re: K161547
> Trade/Device Name: Transem and EchoGen™ Embryo Transfer Catheters Regulation Number: 21 CFR§ 884.6110 Regulation Name: Assisted Reproduction Catheters Regulatory Class: II Product Code: MOF Dated: February 10, 2017 Received: February 13, 2017
Dear Tove Kjaer:
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.
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.
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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 (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.
If you desire specific advice for your device on our labeling regulation (21 CFR Part 801), please contact the Division of Industry and Consumer Education at its toll-free number (800) 638-2041 or (301) 796-7100 or at its Internet address
http://www.fda.gov/MedicalDevices/ResourcesforYou/Industry/default.htm. 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.
You may obtain other general information on your responsibilities under the Act from the Division of Industry and Consumer Education at its toll-free number (800) 638-2041 or (301) 796-7100 or at its Internet address
http://www.fda.gov/MedicalDevices/ResourcesforYou/Industry/default.htm.
Sincerely.
Joyce M. Whang -S
for
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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DEPARTMENT OF HEALTH AND HUMAN SERVICES Food and Drug Administration
## Indications for Use
510(k) Number (if known) K161547
Device Name
Transem and EchoGen™ Embryo Transfer Catheters
Indications for Use (Describe)
The Transem and EchoGen™ are catheters with angled or spherical tips for embryo transfer into the uterine cavity in the treatment of infertility.
The Transem Stylets are intended to assist the insertion of the Transem or EchoGen™ catheters where the passage through the cervix is impeded.
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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# Transem and EchoGen™ Embryo Transfer Catheters 510(k) Summary (K161547)
#### SUBMITTER l .
| Name: | ORIGIO a/s |
|---------------------|-----------------------------------------------------------------------------------------------------------------------------------|
| Address: | Knardrupvej 2<br>2760 Måløv<br>Denmark |
| Contact Person: | Tove Kjær<br>Director, Corporate Regulatory Affairs<br>Telephone: +45 4679 0220<br>Fax: +45 4679 0300<br>Email: tkjaer@origio.com |
| Date of Preparation | March 8, 2017 |
#### ll. SUBJECT DEVICE
| Name of Device: | Transem and EchoGen™ Embryo Transfer Catheters |
|-------------------------|---------------------------------------------------------------------------------------------------------------------------|
| Common or Usual Name: | Embryo Transfer Catheters, Stylets |
| Classification Number: | 21 CFR 884.6110 |
| Classification Name: | Assisted Reproduction Catheters |
| Regulatory Class: | II |
| Product Code: | MQF (Catheters, Assisted Reproduction) |
| Included model numbers: | TSET25SA, TSET25SAO, TSET24SAS, TSET24SASO, TSS1520, TSS1823, TSS2025, TSET25SAEG, TSET25SAOEG, TSET24SASEG, TSET24SASOEG |
#### PREDICATE DEVICE III.
| Trade Name: | Wallace (Sure View) Embryo Replacement Catheter and |
|---------------|-----------------------------------------------------|
| | Trial Transfer Catheter |
| Manufacturer: | Portex, Ltd. |
| 510(k): | K033084 |
The predicate device was subject to a design-related recall in 2013. However, the recall status for the predicate device is completed, and the predicate device is currently marketed.
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#### DEVICE DESCRIPTION IV.
The Transem and EchoGen™ are Embryo Transfer Catheters with various angled or spherical tips and various lengths. The EchoGen™ variants are designed to be visible under ultrasound imaging. Stylets to aid in the insertion of the embryo catheters are also available. The product variants covered in this 510(k) include the following:
| Trade name | Catheter type | Code | Description |
|------------|---------------|--------------|-----------------------------|
| Transem | Angled tip | TSET25SA | Transem Angled 25 cm |
| | | TSET25SAO | Transem Angled O* 25 cm |
| | Spherical tip | TSET24SAS | Transem Spherical 24 cm |
| | | TSET24SASO | Transem Spherical O* 24 cm |
| | Stylets | TSS1520 | Transem Stylet 15 cm |
| | | TSS1823 | Transem Stylet 18 cm |
| | | TSS2025 | Transem Stylet 20 cm |
| EchoGen™ | Angled tip | TSET25SAEG | EchoGen™ Angled 25 cm |
| | | TSET25SAOEG | EchoGen™ Angled O* 25 cm |
| | Spherical tip | TSET24SASEG | EchoGen™ Spherical 24 cm |
| | | TSET24SASOEG | EchoGen™ Spherical O* 24 cm |
*includes obturator
Key specifications for the Transem and EchoGen™ Embryo Transfer Catheters are listed in the table below.
| Aspect | Subject Device |
|---------------------------|------------------------------------------------|
| Packaging type | Blister pack |
| Sterility assurance level | SAL 10-6 |
| Sterilization method | Irradiation |
| Reprocessing | Single use |
| Shelf life | 1.3 years |
| Endotoxins | ≤ 1.25 EU/device |
| Mouse Embryo Assay | ≥80% blastocyst rate at 96 hr<br>(1-cell test) |
#### V. INDICATIONS FOR USE
The Transem and EchoGen™ are catheters with angled or spherical tips for embryo transfer into the uterine cavity in the treatment of infertility.
The Transem Stylets are intended to assist the insertion of the Transem or EchoGen™ catheters where the passage through the cervix is impeded.
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### INTENDED USE AND TECHNOLOGY COMPARISON WITH THE PREDICATE VI. DEVICE
### Intended Use
The indication for use statements for the subject and predicate devices are shown in the table below.
| Aspect | Subject Device (K161547) | Predicate Device (K033084) |
|---------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Indications for use | The Transem and EchoGen™ are catheters<br>with angled or spherical tips for embryo<br>transfer into the uterine cavity in the<br>treatment of infertility. | Embryo Replacement Catheters are<br>sterile, single-use devices for ultrasound<br>guided introduction of embryos into the<br>uterine cavity following in vitro<br>fertilization. |
| | The Transem Stylets are intended to assist<br>the insertion of the Transem or EchoGen™<br>catheters where the passage through the<br>cervix is impeded. | Trial transfer catheters are sterile, single-<br>use devices for determining whether the<br>cervix is passable for a Wallace embryo<br>replacement catheter. |
The subject and predicate devices have the same intended use - transfering embryos into the uterine cavity during in vitro fertilization procedures. The subject device includes the Transem Stylet, which is intended to assist insertion of the catheters by maintaining rigidity of the device. While the use of a stylet is not included in the predicate device Indications for Use statement, the inclusion of the stylet does not represent a new intended use for the device. The predicate device indication includes a trial transfer catheter, used to determine whether the cervix is passable. The subject device does not contain a trial catheter; however, the lack of a trial catheter does not change the intended use of the subject device.
### Technology
In the following tables, the technological features and performance specification of the subject device are compared to the predicate device.
| Aspect | Subject Device (K161547) | Predicate Device (K033084) |
|-------------------|------------------------------------------------------------------------|--------------------------------------------|
| Materials | Stainless steel | Stainless steel |
| | Plastics (thermoplastic<br>elastomers, polyethylene,<br>polypropylene) | Plastics (types not publicly<br>available) |
| | Ink | Ink |
| Dimensions** | | |
| - Working lengths | 24/25 cm | 18/23 cm |
| - Forming of tip | Spherical/Angled | Straight/Angled |
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| - | Bulb tip | Yes* | No |
|-----------------------|---------------------|-----------------------|---------------------------------|
| - | Inner catheter I.D. | 0.50*/0.77 mm | 0.76 mm |
| - | Inner catheter O.D. | 1.00*/1.47 mm | 1.50 mm |
| - | Outer catheter O.D. | 2.15*/2.65 mm | 2.30 mm |
| Stylet | | 15/18/20 cm | Not present |
| Other characteristics | | | |
| - | Echogenic tip | Yes (EchoGen™ models) | Yes (Sureview & Surepro models) |
| - | Echogenic principle | Metallic marker band | Extruded air bubbles |
*: Models with spherical tips
**: The only difference between the Transem and EchoGen™ catheters is the inclusion of an echogenic marker. Therefore, the dimensions listed for the subject device apply to both the Transem and EchoGen™ catheters.
The technological characteristics of the subject device are different - the subject device has different material components, dimensions, echogenic marker materials, and includes a stylet to help maintain rigidity during insertion. However, different types of safety or effectiveness questions are not raised by these differences in technological characteristics.
#### VII. PERFORMANCE DATA
### Biocompatibility testing
Transem and EchoGen™ were tested for cytotoxicity according to ISO 10993-5:2009, sensitization according to ISO 10993-10:2010 and vaginal irritation according to ISO 10993-10:2010. The results showed the device is not cytotoxic, not sensitizing and a non-irritant.
### Sterilization and Shelf-life
The sterilization of Transem and EchoGen™ has been validated according to ISO 11137-2:2006. The shelf-life has been established through real-time and accelerated testing according to standards ISO 11607-1:2006 and ASTM F1980-07. The following parameters were assessed during shelf life testing:
- Air resistance
- Tensile strength
- Dimensional characteristics
- Sterility
- Endotoxin (Limulus Amebocyte Lysate test per USP<85>)
- Mouse Embryo Assay (MEA)
- Package integrity (peel strength, visual inspection for damage, label integrity, and contamination)
### Bench Testing
Bench testing included the physical properties of Transem and EchoGen™ (air resistance, tensile strength, dimensional verification), performance characteristics (sterility, endotoxin and embryotoxicity [MEA]), and echogenic marker assessments (mounting accuracy, pull force to remove), flow restriction, and ultrasound visibility assessment.
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#### conclusions VIII.
The results of the testing described above demonstrate that the Transem and EchoGen™ Embryo Transfer Catheters are as safe and effective as the predicate device and supports a determination of substantial equivalence.
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.