WALLACE (SURE VIEW) EMBRYO REPLACEMENT CATHETER AND TRIAL TRANSFER CATHETER
Applicant
Portex , Ltd.
Product Code
MQF · Obstetrics/Gynecology
Decision Date
Dec 19, 2003
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 884.6110
Device Class
Class 2
Attributes
Therapeutic
Indications for Use
Embryo Replacement Catheters are sterile, single-use devices for ultrasound guided introduction of embryos into the uterine cavity following in vitro fertilisation. Trial Transfer Catheters are sterile, single-use devices for determining whether the cervix is passable for a Wallace embryo replacement catheter
Device Story
Embryo replacement and trial transfer catheters; single-use; ultrasound-guided. Embryo replacement catheter: flexible inner cannula, detachable outer sheath, Luer taper connection; used for embryo introduction into uterine cavity. Trial transfer catheter: flexible inner cannula with blind end, detachable outer sheath; used to assess cervical passage. Both devices feature 1cm graduations for depth monitoring. Operated by clinicians during IVF procedures. Enhanced material composition improves visibility under ultrasound imaging. Output is physical placement of embryos or assessment of cervical patency. Benefits include improved visualization during transfer, potentially increasing procedure success.
Clinical Evidence
No clinical data provided. Substantial equivalence based on bench testing and comparison of technological characteristics to legally marketed predicate devices.
Technological Characteristics
Single-use catheters; 18cm and 23cm lengths; 1.5mm OD/0.76mm ID. Consists of inner cannula and detachable outer sheath with Luer taper. Materials identical to predicates, modified for ultrasound visibility. Graduations at 1cm intervals. Non-powered, mechanical device.
Indications for Use
Indicated for patients undergoing in vitro fertilization requiring embryo transfer into the uterine cavity or cervical passage assessment prior to transfer.
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 Embryo Transfer Catheter range 18-23cm (K990350)
Wallace Trial Transfer Catheter range 18-23cm (K990348)
Cook Echotip® Soft-Pass Embryo Transfer Catheter (K983594)
Submission Summary (Full Text)
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DEC 1 9 2003
#### Wallace (Sure View IM) Embryo Replacement Catheters & Trial Transfer Catheters. 510(K) Notification
# K-23084
#### SECTION 5.0 : 510K SUMMARY
27 August 2003 DATE SUBMITTED:
SUBMITTER: Portex Ltd Hythe Kent England, CT21 6JL
CONTACT PERSON: Mr Steve Ogilvie, Regulatory and Scientific Affairs Director, Portex Ltd, Military Road, Hythe, Kent, England. CT21 6DB Phone 00 44 (0)1303 208011 Fax 00 44 (0)1303 262798
> Wallace (Sure View TM )Embryo Replacement Catheter DEVICE NAME: & Trial Transfer Catheter.
## COMMON NAME AND CLASSIFICATION:
Ultra sound visible embryo transfer catheter Class II MQF, 21 CFR 884.6110
#### PREDICATE DEVICES:
- Predicate 1: Wallace Embryo Transfer Catheter range 18-23cm already marketed in the USA . under K990350
- Predicate 2: Wallace Trial Transfer Catheter range 18-23cm already marketed in the USA under . K990348
- Predicate 3: Cook Echotip® Soft-Pass Embryo Transfer Catheter already marketed in the USA t under K983594
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## Wallace (Sure View TM) Embryo Replacement Catheters & Trial Transfer Catheters. 510(K) Notification
## SECTION 5.0 : 510K SUMMARY
### DEVICE DESCRIPTION:
#### Embryo Replacement Catheters
The Embryo Replacement Catheters (for use in ultrasound-guided transfers) are single use devices for the introduction of embryos into the uterine cavity following in-vitro fertilisation. The devices have overall lengths; 18cm (CE 118A) and 23cm (CE 123A) and consist of a soft, flexible inner cannula, with end opening, and a detachable outer sheath that is attached to the inner catheter by a Luer taper. The inner catheter is of dimensions 1.5mm (OD) x 0.76 mm(ID) with a lumen that is uniform throughout its length, with a series of 1cm graduations at the proximal end. The inner catheter protrudes from the outer sheath by 5cm and the outer sheath has a series of 1cm graduations at the
# Trial Transfer Catheters.
distal end.
The Trial Transfer Catheters (for use in ultrasound-guided transfers) are single use devices used to assess the passage through the cervix prior to embryo transfer.
The devices have overall lengths; 18cm (CE 418A) and 23cm(CE 423A) and consist of a flexible inner cannula, with blind end, and a detachable outer sheath that is attached to the inner catheter by a Luer taper. The inner catheter is of dimensions 1.5mm (OD) x 0.76 mm(ID) with a series of graduations at the proximal end. The inner catheter protrudes from the outer sheath by 5cm and the outer sheath has a series of 1cm graduations at the distal end.
## TECHNOLOGICAL CHARACTERISTICS OF PROPOSED VERSUS PREDICATE DEVICES:
The proposed devices are substantially equivalent to Predicate devices 1 & 2 -Wallace Embryo Transfer Catheter (K990350) & Wallace Trial Transfer Catheter (K990348) in all the following aspects:
- Tip protector. The tip protector for the proposed devices 1 & 2 is identical in material . composition to that of Predicate 1 & 2.
- Outer sheath. The outer sheath for the proposed devices 1 & 2 is identical in material . composition and profile to that of Predicate 1 & 2.
- . The print markings. The print ink for the proposed devices 1 & 2 is identical in composition to the ink used for Predicate 1 & 2. The print layout for the proposed device displays identical information as the layout on Predicate 1 & 2.
- Outer and inner hub. The material composition for the outer and inner hub is identical . for both the proposed devices 1 & 2 and Predicate 1 & 2.
- Inner catheter. The proposed devices are made from the same materials as Predicate 1 ● & 2. with the exception that the material is modified to enhance the visibility of the catheter under ultrasound. In this respect, the inner catheter is substantially equivalent to Predicate 3.
Image /page/1/Picture/15 description: The image shows a hand-drawn symbol of a five-pointed star inside of a circle. The star is not perfectly symmetrical, and the circle is slightly irregular. The drawing appears to be done with a thick marker or pen, giving it a bold and simple look.
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## Wallace (Sure View TM ) Embryo Replacement Catheters & Trial Transfer Catheters. 510(K) Notification
## SECTION 5.0 : 510K SUMMARY
## PERFORMANCE / CLINICAL DATA:
Comparison of the performance of the proposed device with the predicate confirms substantial equivalence in all aspects.
#### CONCLUSION:
Comparison of the proposed device to the predicate devices supports the conclusion that the proposed Comparison of the equivalent to existing legally marketed devices.
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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 with three tail feathers, representing the three levels of government: federal, state, and local. The eagle is encircled by the words "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" in a circular arrangement.
Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850
DEC 1 9 2003
Mr. Barry Smith Regulatory Affairs Manager Portex, Ltd. Boundary Road, Hythe Kent CT21 6JL UNITED KINGDOM
Re: K033084
Trade/Device Name: Wallace (Sure View™) Embryo Replacement Catheter and Trial Transfer Catheter Regulation Number: 21 CFR 884.6110 Regulation Name: Assisted reproduction catheter Regulatory Class: II Product Code: 85 MQF Dated: August 27, 2003 Received: September 30, 2003
Dear Mr. Smith:
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 such 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 (OS) regulation (21 CFR Part 820); and if applicable, the electronic product radiation control provisions (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) 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 the 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" (21CFR Part 807.97) you may obtain. 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. 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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#### Wallacc (Sure View TM ) Embryo Replacement Catheters & Trial Transfer Catheters. 510(K) Notification
#### SECTION 4.0: STATEMENT OF INDICATION FOR USE
#### 510(K) Number (if known): K033084
Page 1 of 1
#### DEVICE NAME:
Wallace (Sure View TM) Embryo Replacement Catheters & Trial Transfer Catheters.
#### INDICATIONS FOR USE:
Embryo Replacement Catheters are sterile, single-use devices for ultrasound guided introduction of embryos into the uterine cavity following in vitro fertilisation.
Trial Transfer Catheters are sterile, single-use devices for determining whether the cervix is passable for a Wallace embryo replacement catheter
Prescription Use YES (Part 21 CFR 801 Subpart D) AND/OR
Over-The-Counter Use NO (21 CFR 807 Subpart C)
#### (PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IF NEEDED)
Concurrence of CDRH, Office of Device Evaluation (ODE)
David M. Sezeram
-productive, Abdor 510(k) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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.