ESP FOUR WELL TISSUE CULTURE PLATE, ESP SIX WELL TISSUE CULTURE PLATE, ESP MICRO SIX WELL TISSUE CULTURE PLATE, ESP WELL
K994361 · Genesis Industries, Inc. · MQK · Feb 18, 2000 · Obstetrics/Gynecology
Device Facts
Record ID
K994361
Device Name
ESP FOUR WELL TISSUE CULTURE PLATE, ESP SIX WELL TISSUE CULTURE PLATE, ESP MICRO SIX WELL TISSUE CULTURE PLATE, ESP WELL
Applicant
Genesis Industries, Inc.
Product Code
MQK · Obstetrics/Gynecology
Decision Date
Feb 18, 2000
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 884.6160
Device Class
Class 2
Indications for Use
The ESP Tissue Culture Plates are single-use labware intended for use in cell culturing and diagnostic laboratory procedures.
Device Story
ESP tissue culture plates are single-use polystyrene labware; used in cell culturing and diagnostic laboratory procedures. Device consists of square base plate with key-wayed interlocking lid; recessed bottom allows stacking. Available in five configurations: four-well, six-well, micro six-well, well-in-well, and square grid with molded numbering. Plates are sterilized via gamma irradiation. Used by laboratory personnel in clinical or research settings to hold samples during incubation or diagnostic testing. Provides stable, stackable environment for cell culture; facilitates handling and organization of samples.
Clinical Evidence
Bench testing only. Device demonstrated sterility (SAL 10^-6), non-pyrogenicity via Limulus Amebocyte Lysate (LAL) testing, and non-embryotoxicity via one-cell mouse embryo assay (MEA).
Technological Characteristics
Polystyrene construction; gamma irradiation sterilization; five physical configurations (four-well, six-well, micro six-well, well-in-well, square grid); interlocking lid design; recessed base for stacking.
Indications for Use
Indicated for cell culturing and diagnostic laboratory procedures. No specific patient population or contraindications described.
Regulatory Classification
Identification
Assisted reproduction labware consists of laboratory equipment or supplies intended to prepare, store, manipulate, or transfer human gametes or embryos for in vitro fertilization (IVF), gamete intrafallopian transfer (GIFT), or other assisted reproduction procedures. These include syringes, IVF tissue culture dishes, IVF tissue culture plates, pipette tips, dishes, plates, and other vessels that come into physical contact with gametes, embryos or tissue culture media.
Special Controls
*Classification.* Class II (special controls) (mouse embryo assay information, endotoxin testing, sterilization validation, design specifications, labeling requirements, and clinical testing). The device, when it is a dish or plate intended for general assisted reproduction technology procedures, is exempt from the premarket notification procedures in subpart E of part 807 of this chapter subject to the limitations in § 884.9.
{0}------------------------------------------------
#### 510(k) Summary
K 994361
Page 1 of 4
| Company<br>Name: | Genesis Industries |
|--------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Address: | 601 Pro-ject Drive<br>Elmwood, WI 54740 |
| | Contact Person(s): Mark L. Anderson, President<br>Angela M. Richardson, Regulatory Affairs Manager |
| Telephone Number: | (715) 778-5821 |
| Fax Number: | (715) 778-4808 |
| Date of Summary: | 22-Dec-1999 |
| Device | |
| Proprietary Names: | ESP Four Well Tissue Culture Plate<br>ESP Six Well Tissue Culture Plate<br>ESP Micro Six Well Tissue Culture Plate<br>ESP Well in Well Tissue Culture Plate<br>ESP Square Tissue Culture Plate with Grid |
| Common Name: | Culture Dish |
| Class: | II |
| CFR Reference: | 884.6160 |
| Procode: | 85 MQK |
| Predicate Device | |
| Proprietary Name: | Falcon IVF Four Well Plate |
| Common Name: | Culture Dish |
| Manufacturer: | Becton Dickinson Labware |
| Model Number: | 353654 |
| 510(k) Number: | K991249 |
# Device Description
The polystyrene ESP tissue culture plates consist of a square base plate with a square lid key wayed to interlock with the base plate. The key way system keeps the lid securely on the base plate. The bottom of the base plate is recessed to allow stacking of multiple plates without the plates sliding apart. The ability to stack plates reduces space requirements during storage and incubation. The 7 cm x 7 cm square shape allows for handling ease regardless of hand size. ESP plates are sterilized using gamma irradiation.
Five configurations of ESP tissue culture plates are available. All five types of plates are identical except for the different physical configurations described below.
{1}------------------------------------------------
K994361
Page 2 of 4
### ESP Four Well Tissue Culture Plate
Four equally spaced wells with rounded bottoms. Each well is 3 cm in diameter and has a 5 milliliter capacity. The wells are numbered clockwise, with the numbers molded into each plate.
### ESP Six Well Tissue Culture Plate
Six equally spaced wells in a circular configuration. Each well is 2 cm in diameter and has a rounded bottom with a 2.5 milliliter capacity. The wells are numbered counterclockwise, with the numbers molded into each plate.
# ESP Micro Six Well Tissue Culture Plate
Six equally spaced wells in a circular configuration. Each well is 2 cm in diameter and has a rounded bottom with a 1milliliter capacity. The wells are numbered counterclockwise, with the numbers molded into each plate.
# ESP Well in Well Tissue Culture Plate
A small well (2 cm diameter) within a large well (5.5 cm diameter). The two wells are separated by a vertical wall and a flat ledge.
# ESP Square Tissue Culture Plate with Grid
A flat surface marked with a square grid consisting of 25 one-half inch squares. The squares are numbered 1 - 5 across the top, and A - E down the left side. The markings are molded into the bottom side of the base, leaving a smooth working surface on the top side of the base.
#### Intended Device Usage
The ESP tissue culture plates are single-use labware intended for use in cell culturing and diagnostic laboratory procedures.
Comparison to Predicate Device
| | ESP Culture Plate | Falcon IVF Four Well<br>Plate |
|--------------|----------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Intended Use | Cell culturing, diagnostic<br>lab procedures | Preparing, storing,<br>manipulating, or<br>transferring human<br>gametes or embryos for<br>in vitro fertilization (IVF),<br>gamete intrafallopian<br>transfer (GIFT), or other<br>reproduction procedures. |
| Indications | Cell culturing, diagnostic<br>lab procedures | In vitro fertilization<br>techniques; tissue culture |
Table 1: Comparison of ESP Culture Plate to Falcon IVF Four Well Plate
{2}------------------------------------------------
| Contraindications | N/A | N/A |
|-----------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Patient/Embryo-<br>Contacting Materials | Polystyrene | Polystyrene, surface<br>treated |
| Design Features | Lid is key wayed to<br>interlock with the base<br>plate. Bottom of base<br>plate is recessed to allow<br>stacking of multiple<br>plates without the plates<br>sliding apart. Five<br>configurations: Four<br>Well, Six Well, Micro Six<br>Well, Well in Well, and<br>Square Grid. | Plate has perfectly flat,<br>optically clear surface for<br>optimum manipulation<br>and observation of ova<br>and embryos. Lid<br>provides access to two<br>wells while other two<br>remain covered. Lid<br>design allows aseptic<br>manipulation and<br>consistent venting to<br>maintain proper<br>humidification. |
| Safety Features | N/A | N/A |
| Other Relevant<br>Characteristics | Sterile (SAL 10-6) Non-pyrogenic by LAL Passes one-cell MEA | Sterile (SAL 10-6) Non-pyrogenic by LAL Passes two-cell MEA |
The ESP plates and the Falcon IVF Four Well Plate have similar applications, which include cell culturing and IVF. Both devices are sterile (SAL of 100), nonpvrogenic by Limulus Amebocvte Lysate (LAL), and nonembryotoxic as tested by the mouse embryo assay (MEA). The ESP plates and the Falcon plate are made from the same material, polystyrene. The ESP Four Well Plate and the Falcon IVF Four Well plate are very similar in configuration, with each plate having four wells.
The primary difference between the ESP plates and the Falcon plate is the physical configuration of the plates. The ESP plates come in a variety of configurations, including four well, six well, micro six well, well in well, and square grid. All ESP lids are key wayed to interlock with the base plate. The Falcon plate has four wells and a special lid to allow access to two wells while keeping the other two wells covered. These differences affect the ease of use of each device for varying applications. These differences do not alter the safety and effectiveness of the devices.
The Falcon plate is surface treated to improve hydrophilicity of the plate surface. whereas the ESP plates are not surface treated. However, both devices are comprised of polystyrene, which has been shown to be biocompatible (see section on Biocompatibility). The surface treating of the Falcon plate is simply an enhancement to improve the ease of use of the product. The non-treated
{3}------------------------------------------------
K994361
Page 4 of 4
surface of the ESP plates does not compromise the safety and effectiveness of the ESP plates as compared to the Falcon plate.
Both the Falcon plate and the ESP plates pass the mouse embryo assay (MEA), however, the two-cell MEA was used for the Falcon plate whereas the one-cell MEA was used for the ESP plates. Currently, there is no consensus in the medical community on whether the one-cell MEA is most appropriate. Both assays test the viability of an embryo in the test device. Since both devices passed the MEA test, both devices have been shown to be non-embryotoxic. The type of MEA test used is not relevant to the safety and effectiveness of the devices.
{4}------------------------------------------------
Image /page/4/Picture/2 description: The image shows the logo for the U.S. Department of Health & Human Services. The logo consists of a stylized eagle with three wing-like shapes, representing health and human services. The eagle is encircled by the text "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" in a circular arrangement.
FEB 1 8 2000
Mr. Mark L. Anderson President Genesis Industries, Inc. 601 Pro-ject Drive Elmwood, WI 54740
Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850
Re: K994361 ESP Four Well Tissue Culture Plate ESP Six Well Tissue Culture Plate ESP Micro Six Well Tissue Culture Plate ESP Well in Well Tissue Culture Plate ESP Square Tissue Culture Plate with Grid Dated: December 22, 1999 Received: December 27, 1999 Requiatory Class: II 21 CFR §884.6160/Procode: 85 MQK
Dear Mr. Anderson:
We have reviewed your Section 510(k) notification of intent to market the device referenced above and we 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). 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. Isting of devices, good manufacturing practice, labeling, and prohibitions against misbranding and adulteration.
If your device is classified (see above) into either class III (Premarket Approval), 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 895. A substantially equivalent determination assumes compliance with the Current Good Manufacturing Practice requirements, as set forth in the Quality System Regulation (QS) for Medical Devices: General regulation (21 CFR Part 820) and that, through periodic QS inspections, the Food and Drug Administration (FDA) will verify such assumptions. Failure to comply with the GMP regulation may result in regulatory action. In addition, FDA may publish further announcements concerning your device in the Federal Register. Please note: this response to your premarket notification does not affect any obligation you might have under sections 531 through 542 of the Act for devices under the Electronic Product Radiation Control provisions, or other Federal laws or regulations.
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 and additionally 809.10 for in vitro diagnostic devices), please contact the Office of Compliance at (301) 594-4613. 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 807.97). Other general information on your responsibilities under the Act may be obtained from the Division of Small Manufacturers 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,
CAPT Daniel G. Schultz, M.D. Acting Director, Division of Reproductive, Abdominal, Ear, Nose and Throat. and Radiological Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
{5}------------------------------------------------
### Page 1 of 1
510(k) Number (if known): K994361
- Device Name: ESP Four Well Tissue Culture Plate ESP Six Well Tissue Culture Plate ESP Micro Six Well Tissue Culture Plate ESP Well in Well Tissue Culture Plate ESP Square Tissue Culture Plate with Grid
Indications For Use: The ESP Tissue Culture Plates are single-use labware intended for use in cell culturing and diagnostic laboratory procedures.
(PLEASE DO NOT WRITE BELOW THIS LINE -- CONTINUE ON ANOTHER PAGE IF NEEDED)
Concurrence of CDRH, Office of Device Evaluation (ODE)
| Prescription Use | ✓ | OR | Over-The-Counter Use |
|----------------------|---|----|--------------------------|
| (Per 21 CFR 801.109) | | | (Optional Format 1-2-96) |
(Division Sign-Off)
Division of Reproductive, Abdominal, ENT,
and Radiological Devices
| 510(k) Number | K994361 |
|---------------|---------|
|---------------|---------|
Predicate graph will load when search results are available.
Embedding visualization will load when search results are available.
PDF viewer will load when search results are available.
Loading panels...
Select an item from Submissions
Click any panel, subpart, regulation, product code, or device to see details here.
Section Matches
Results will appear here.
Product Code Matches
Results will appear here.
Special Control Matches
Results will appear here.
Loading collections...
Loading
My Alerts
You will receive email notifications based on the filters and frequency you set for each alert.
Sort by:
Create Alert
Search Filters
Agent Token
Create a read-only bearer token for Claude, ChatGPT, or other agents that can call HTTP APIs.
Copy this now. It will not be shown again.
Connected apps
Apps you authorized through browser sign-in. Disconnecting revokes their access immediately.
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.