Continuous Single Culture™ Complete is intended for use as a culture medium for human gametes and embryos from fertilization through day 5/6 of development in vitro.
Device Story
Continuous Single Culture™ Complete is a ready-to-use liquid culture medium for human gametes and embryos. It is a formulation of salts, amino acids, nutrients, gentamicin sulfate, and human serum albumin. Used in clinical embryology laboratories, the medium supports fertilization and embryo development up to day 5/6 in a CO2 incubator at 37°C. Embryos are cultured in dishes containing the medium; if culture extends beyond day 3, embryos are transferred to fresh pre-equilibrated medium. After reaching the desired developmental stage, embryos are moved to transfer media for uterine implantation. The device provides a stable environment for embryonic growth, replacing the need for manual protein supplementation required by the predicate device.
Clinical Evidence
No clinical data. Evidence consists of bench testing and non-clinical performance evaluations. Mouse Embryo Assay (MEA) demonstrated ≥80% expanded blastocyst development at 96 hours. Human Sperm Survival Assay (HSSA) showed ≥70% motility at 24 hours. Additional testing included pH, osmolality, sterility, and endotoxin levels, all meeting established specifications. Field evaluations confirmed performance equal to the predicate device.
Technological Characteristics
Liquid culture medium containing salts, amino acids, nutrients, gentamicin sulfate, and human serum albumin. Formulated for use in CO2 incubators at 37°C. Specifications: pH 7.25–7.54; osmolality 260–270 mOsm/KgH2O; endotoxin ≤ 0.25 EU/mL. Sterilized product. No electronic or software components.
Indications for Use
Indicated for use as a culture medium for human gametes and embryos from fertilization through day 5/6 of development in vitro in assisted reproductive technology procedures.
Regulatory Classification
Identification
Reproductive media and supplement are products that are used for assisted reproduction procedures. Media include liquid and powder versions of various substances that come in direct physical contact with human gametes or embryos (including water, acid solutions used to treat gametes or embryos, rinsing solutions, sperm separation media, supplements, or oil used to cover the media) for the purposes of preparation, maintenance, transfer or storage. Supplements are specific reagents added to media to enhance specific properties of the media (e.g., proteins, sera, antibiotics, etc.).
Special Controls
*Classification.* Class II (special controls) (mouse embryo assay information, endotoxin testing, sterilization validation, design specifications, labeling requirements, biocompatibility testing, and clinical testing). The device, when it is phosphate-buffered saline used for washing, and short-term handling and manipulation of gametes and embryos; culture oil used as an overlay for culture media containing gametes and embryos; and water for assisted reproduction applications, is exempt from the premarket notification procedures in subpart E of part 807 of this chapter subject to the limitations in § 884.9.
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## 510(k) SUMMARY AS REQUIRED BY 21 CR § 807.87(h)
Submitter's Name and Address:
Irvine Scientific Sales Co., Inc. 2511 Daimler Street Santa Ana, CA 92705-5588
2511 Daimler Street Santa Ana, CA 92705-5588
Jayme Yamaguchi-Owens Regulatory Affairs Manager Irvine Scientific 2511 Daimler Street Santa Ana, CA 92705-5588 949-261-7800 ext 254 Tel: Fax: 949-261-6522 Email: jfy@irvinesci.com
Date of Application:
Manufacturing Site:
Contact Person:
May 24, 2012
Establishment Registration Number: 2022379
510(k):
K121572
Trade or Proprietary Name:
Device Name:
Device Classification:
Device Regulation:
Device Classification:
Product Code:
Predicate Device:
Performance Standards:
In Vitro embryo culture medium
Reproductive Media and Supplements
Continuous Single Culture™ Complete
21 CFR § 884.6180
Class II (Special Controls)
MQL
Single Step Medium™, K072609
None established
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#### Purpose:
Purpose of this application is to obtain 510(k) marketing clearance for the Continuous Single Culture™ Complete.
#### Indication for Use:
Continuous Single Culture™ Complete is intended for use as a culture medium for human gametes and embryos from fertilization through day 5/6 of development in vitro.
## Description of the Device:
The Continuous Single Culture™ Complete is based upon the Single Step Medium™ (K072609) formulation that is supplemented with Human Serum Albumin, H.S.A. The Continuous Single Culture™ Complete is composed of a balanced mixture of salts, amino acids and other nutrients that have been shown to support embryo development. The Continuous Single Culture™ Complete is designed to be used as a culture media for fertilization and for development of embryos until the desired developmental stage (up to 5/6 days). Selected embryos are then moved to an embryo transfer media prior to transfer to the uterus.
The Continuous Single Culture™ Complete is supplied in liquid form, and contains gentamicin sulfate as a preservative and a therapeutic grade of Human Serum Albumin (K983584). Liquid Continuous Single Culture™ Complete is supplied in a fill volume of 20 mL.
Continuous Single Culture™ Complete has utility as a culture medium from fertilization through day 5/6 of development. The fertilized oocyte (zygote) is allowed to grow in the culture dish, supported by a culture medium and an appropriate protein supplement, in a carbon dioxide incubator at 37°C until the desired stage of development is achieved. Selected embryos are then moved to an embryo transfer media prior to transfer to the uterus.
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Continuous Single Culture™ Complete is supplied as a ready to use liquid in 20 mL bottles.
# Technological Characteristics:
After allowing the fertilized zygote to develop in vitro in Continuous Single Culture™ Complete, the embryo is removed from the culture dish. It is placed into a fresh dish containing Continuous Single Culture™ Complete. The dish is then returned to the incubator, and the embryo is allowed to continue develop in vitro. If a medium change is desired for embryo culture beyond day 3, after 48 hours of embryo culture (of the fertilized embryos), the embryos should be transferred into a new dish of fresh pre-equilibrated Continuous Single Culture™ Complete. After the desired stage of development is obtained selected embryos are then moved to an embryo transfer media prior to transfer to the uterus
Continuous Single Culture™ Complete is similar to Single Step Medium™ (K072609) it is intended for use in assisted reproductive technology procedures that involve the manipulation of gametes or embryos that is supplemented with a protein such as H.S.A. (K983584),
# Performance Data:
Continuous Single Culture™ Complete is assayed by one (1) -cell mouse embryo assay (MEA) prior to release to the market. This assay assures that the product is functional for its intended use, the support of embryonic growth, and that embryotoxic components are not present in the formulation..
Continuous Single Culture™ Complete is also assayed by human sperm survival assay (HSSA) was also performed prior to release to the market. This assay also assures that the product is both functional for its intended use with regards to sperm wash procedure and that no sperm-toxic components are present in the formulation.
In addition, performance testing of the product includes pH, osmolality, sterility, and endotoxin testing. These tests demonstrate quality and the consistency in
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each lot of Continuous Single Culture™ Complete that is manufactured. These tests also support the equivalence of the proposed device to the predicate device.
#### Nonclinical Tests:
One (1) -cell MEA was performed on the Continuous Single Culture™ Complete as part of the design validation. Testing was performed at three (3) different test facilities after continuous culture in Continuous Single Culture™ Complete up to 96 hours.
In addition, HSSA was also performed on donor specimens at three (3) different test facilities. The donor specimens were initially processed by gradient separation and resulting motile specimens were equally divided and the average % motility after 24 hours at 37°C in ambient air was determined as compared to the control.
The field evaluations demonstrate that the Continuous Single Culture™ Complete was "equal" to the proven control medium (predicate device) of Single Step Medium™ (K072609).
#### Additional Information:
Endotoxin, mouse embryo assay, human sperm survival assay, albumin recovery assay, pH, osmolality, appearance and sterility testing will be performed as a condition of release for Continuous Single Culture™ Complete. Results of all release assays performed will be reported on a lot-specific certificate of analysis, and will be indicated on the labeling.
#### Conclusion:
The predicate device, Single Step Medium™ (K072609) needs to be supplemented with a protein prior to use and it is a common practice for media to be formulated with a protein for use in ART procedures. Therefore, the addition of HSA to the device would not raise new types of safety of effectiveness questions.
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A comparison of the Predicate Device Intended Use, Product Formula and Product Specifications are summarized below that demonstrate substantial equivalence.
| Product Name | K# | Fertilization<br>Medium | Culture of<br>Embryos to<br>Day 5/6 | Protein<br>Supplement |
|-------------------------|---------|-------------------------|-------------------------------------|-----------------------|
| Single Step<br>Medium ™ | K072609 | + | + | - |
Table 1: Predicate Device Intended Use Comparison
The intended use between the predicate device and the proposed device are the same in that the medium can be used from fertilization and culture of embryos to day 5/6.
Table 2: Predicate Device Product Formula Comparison
| Item # | Raw Material and CAS<br>No. | Single Step Medium ™<br>(K072609) | CSC™ Complete |
|--------|-----------------------------------------------------------------|-------------------------------------------|---------------|
| | | UOM/L | |
| 1 | WFI Water, produced in<br>house | + | + |
| 2 | Phenol red, sodium salt<br>[34487-61-1] | + | + |
| 3 | Sodium bicarbonate<br>[144-55-8] | + | + |
| 4 | EDTA, disodium salt<br>[6381-92-6] | + | + |
| 5 | Sodium Citrate, dehydrate<br>[6132-04-3] | + | + |
| 6 | 5N Hydrochloric acid<br>[7647-01-0]<br>(for pH adjustment only) | - | + |
| 7 | 20% Human Serum<br>Albumin | - | + |
| 8 | L- Lactic Acid Sodium, Salt<br>[867-56-1] | - | + |
| 9 | DL-Lactic Acid Sodium,<br>Salt<br>[72-17-3] | + | - |
| 10 | Sodium Chloride<br>[7647-14-5] | + | + |
| 11 | Potassium Chloride<br>[7447-40-7] | + | + |
| 12 | Dextrose, anhydrous | + | + |
| Item # | Raw Material and CAS No. | Single Step Medium™<br>(K072609)<br>UOM/L | CSC™ Complete |
| 13 | [50-99-7]<br>Magnesium sulfate, anhydrous<br>[7487-88-9] | + | + |
| 14 | Potassium Phosphate, monobasic<br>[7778-77-0] | + | + |
| 15 | Pyruvic Acid, Na Salt<br>[113-24-6] | + | + |
| 16 | L-Alanine<br>[56-41-7] | + | + |
| 17 | L-Arginine HCl<br>[1119-34-2] | + | + |
| 18 | L-Asparagine monohydrate<br>[5794-13-8] | + | + |
| 19 | L-Aspartic acid<br>[56-84-8] | + | + |
| 20 | L-Glutamic acid<br>[56-86-0] | + | + |
| 21 | Glycine<br>[56-40-6] | + | + |
| 22 | L-Histidine HCl monohydrate<br>[5934-29-2] | + | + |
| 23 | L-Isoleucine<br>[73-32-5] | + | + |
| 24 | L-Leucine<br>[61-90-5] | + | + |
| 25 | L-Lysine HCl<br>[657-27-2] | + | + |
| 26 | L-Methionine<br>[63-68-3] | + | + |
| 27 | L-Phenylalanine<br>[63-91-2] | + | + |
| 28 | L-Proline<br>[147-85-3] | + | + |
| 29 | L-Serine<br>[56-45-1] | + | + |
| 30 | L-Taurine<br>[107-35-7] | + | - |
| 31 | L-Threonine<br>[72-19-5] | + | - |
| 32 | L-Tryptophan<br>[73-22-3] | + | + |
| ltem # | Raw Material and CAS<br>No. | Single Step Medium™<br>(K072609) | CSC™ Complete |
| | | UOM/L | |
| 34 | L-Valine<br>[72-18-4] | + | + |
| 35 | Calcium chloride,<br>anhydrous [10043-52-4] | + | + |
| 36 | Cystine 2HCl<br>_<br>(30925-07-6) | | + |
| 37 | L-Cysteine HCI.H2O<br>[7048-04-6] | . + | |
| 38 | Alanyl-Glutamine<br>[39537-023-0] | + | + |
| 39 | Gentamicin sulfate<br>[1405-41-0] | + | + |
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.
.
.
:
.
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The formulation comparison between the predicate device and the proposed device are equivalent with the exception of three (3) components (raw materials). The predicate device contains taurine and the proposed device does not. It was identified that in the presence of other amino acids taurine provided no specific benefit.
The predicate device contains L-Cysteine and the proposed device contains L-Cystine. It was identified that the L-Cystine is a more stable amino acid than the L-Cysteine during the development of the proposed device.
The predicate device contains DL-Lactic Acid and the proposed device contains L-Lactic acid. IT was identified that the L-Lactic acid is the active form of DL-Lactic acid.
The component differences between the predicate and the proposed devices have been addressed as the performance of the Continuous Single Culture™ Complete was verified for performance during product development.
| Specification | Single Step MediumTM<br>(K072609) | Continuous Single<br>CultureTM Complete |
|---------------|-----------------------------------|-----------------------------------------|
| pH | 7.25 - 7.54 | 7.25 - 7.54 |
| Osmolality | 260 – 270 mOsm/KgH2O | 260 – 270 mOsm/KgH2O |
Table 3: Predicate Device Product Specification Comparison
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| Specification | Single Step Medium™<br>(K072609) | Continuous Single<br>Culture™ Complete |
|---------------|----------------------------------|-------------------------------------------|
| Sterility | Pass | Pass |
| Endotoxin | ≤ 0.25 EU/mL | ≤ 0.25 EU/mL |
| MEA | ≥ 80% | ≥ 80% expanded blastocyst<br>at 96 hours |
| HSSA | NT1 | ≥ 70% of original motility at<br>24 hours |
The product specifications for the predicate and the proposed device are identical with the exception of the HSSA which was added to the product specification for the proposed device as it is within the intended use of the product.
The conclusion from the performance testing, intended use comparison, product formulation comparison and test specification comparison as well as the nonclinical and clinical data demonstrates that the Continuous Single Culture™ Complete is suitable for its intended use, and meets the criteria in the comparison to predicate device in which substantial equivalence has been demonstrated, and meets the criteria outlined in the Notice of Final Rule, 63 FR 48428, Docket Number 97N-0335.
1 NT - Not Tested
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### DEPARTMENT OF HEALTH & HUMAN SERVICES
Image /page/8/Picture/1 description: The image shows the logo for the U.S. Department of Health & Human Services. The logo consists of a circular seal with the text "DEPARTMENT OF HEALTH & HUMAN SERVICES USA" around the perimeter. Inside the circle is an abstract symbol resembling an eagle or bird in flight, composed of three curved lines.
Re:
Food and Drug Administration 10903 New Hampshire Avenue Document Control Room -W066-G609 Silver Spring, MD 20993-0002
Ms. Jayme Yamaguchi-Owens Regulatory Affairs Manager Irvine Scientific Sales Co., Inc. 2511 Daimler Street SANTA ANA CA 92705
JUL 19 2012
K121572 Trade/Device Name: Continuous Single Culture™ Complete Regulation Number: 21 CFR§ 884.6180 Regulation Name: Reproductive media and supplements Regulatory Class: II Product Code: MQL Dated: May 24, 2012 Received: May 29, 2012
Dear Ms. Yamaguchi-Owens:
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. 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
{9}------------------------------------------------
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 go to http://www.fda.gov/AboutFDA/CentersOffices/CDRH/CDRHOffices/ucm115809.htm for the Center for Devices and Radiological Health's (CDRH's) Office of Compliance. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21CFR 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 Small Manufacturers, International and Consumer Assistance at its toll-free number (800) 638-2041 or (301) 796-7100 or at its Internet address
http://www.fda.gov/MedicalDevices/Resourcesfor You/Industry/default.htm.
Sincerely yours,
Benjamin R. Civiletti
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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Irvine Scientific
May 24, 2012
# INDICATIONS FOR USE STATEMENT (page 1 of 1)
K121572 : 510(K) Number:
Continuous Single Culture™ Complete Device Name:
#### Indications for Use:
Continuous Single Culture™ Complete is intended for use as a culture medium for human gametes and embryos from fertilization through day 5/6 of development in vitro.
Prescription Use × (Part 21 CFR § 801 Subpart D) AND/OR
Over-The-Counter Use (21 CFR § 807 Subpart C) ·
(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IE NEEDED) Concurrence of CDRH, Office of Device Evaluation (ODE)
Page 1 of 1
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Division of Reproductive, Gastro-Renal, and
Urological Devices K121572
510(k) Number
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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.
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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.
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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.
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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.
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Reading rule for every project: how many summaries do you read in full?
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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.
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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.
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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.
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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.