K112462 · Kitazato Medical Co., Ltd. · MQE · Nov 26, 2012 · Obstetrics/Gynecology
Device Facts
Record ID
K112462
Device Name
KITAZATO OPU NEEDLE
Applicant
Kitazato Medical Co., Ltd.
Product Code
MQE · Obstetrics/Gynecology
Decision Date
Nov 26, 2012
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 884.6100
Device Class
Class 2
Indications for Use
The Kitazato OPU Needles consisting of: - Kitazato OPU Needle with Connection Tube, model number Type 2 - Kitazato OPU Reduced Needle, model number Type 3 are intended to obtain oocytes from ovarian follicles.
Device Story
Kitazato OPU Needles are sterile, single-use devices designed for transvaginal puncture of ovarian follicles to aspirate oocytes. The device consists of a stainless steel aspiration needle, a connection tube, and a silicone stopper connector. Available in two configurations: Type 2 (standard aspiration needle) and Type 3 (reduced needle with a narrow tip). The clinician performs the procedure under ultrasound guidance to locate follicles, punctures the vaginal wall, and aspirates the follicular fluid containing oocytes. The output is the collected oocyte sample, which is then processed in a laboratory setting for assisted reproduction. The device facilitates oocyte retrieval, a critical step in IVF and other fertility treatments.
Clinical Evidence
Bench testing only. Testing included mechanical tensile strength (withstanding 22N for O.D. <0.55mm), bending elasticity (returning to position after 8° bend), folding strength (no fracture at 90°), dimensional verification, endotoxin levels (≤20 EU/device), and sterility. Mouse embryo assay demonstrated ≥80% expansion to blastocyst stage within 96 hours, confirming biocompatibility for reproductive use.
Technological Characteristics
Needle assembly consisting of stainless steel needle, connection tube, and silicone stopper. Available in gauges 16G to 24G (Type 2) and 18G with 21G-23G narrow tips (Type 3). Sterilized device. Biocompatibility verified per international standards.
Indications for Use
Indicated for patients undergoing oocyte retrieval from ovarian follicles for assisted reproduction procedures.
Regulatory Classification
Identification
Assisted reproduction needles are devices used in in vitro fertilization (IVF), gamete intrafallopian transfer (GIFT), or other assisted reproduction procedures to obtain gametes from the body or introduce gametes, zygote(s), preembryo(s) and/or embryo(s) into the body. This generic type of device may include a single or double lumen needle and component parts, including needle guides, such as those used with ultrasound.
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
Vitrolife Sweden AB -- Follicle Aspiration Set, Reduced Single Lumen (K082727)
Swemed Lab International AB - Swemed Follicle Aspiration Set, Double Lumen, Single Lumen, and Luer Needle (K991273)
Submission Summary (Full Text)
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K112462
page 1 of 3
## 510(k) Summary
For
NOV 2 6 2012
# Kitazato OPU Needle
### 1. Submission Sponsor
KITAZATO Medical Co., Ltd. 2-15-12 Hongo, Bunkyou-ku Tokyo 113-0033 JAPAN Phone: +(81) 3-5800-6055 Fax: +(81) 3-5800-6056 Contact: Mari Yazaki, Quality Assurance Manager
#### 2. Submission Correspondent
Emergo Group 611 West 5th Street, Third Floor Austin, TX 78701 Cell Phone: (508) 838.9139 Office Phone: (512) 327.9997 Fax: (512) 327.9998 Contact: Richard Vincins, Vice President, QA Email: richard@emergogroup.com
#### 3. Date Prepared
21 November 2012
·
#### 4. Device Name
| Trade/Proprietary Name: | Kitazato OPU Needle with Connection Tube, model number<br>Type 2<br>Kitazato OPU Reduced Needle, model number Type 3 |
|----------------------------|----------------------------------------------------------------------------------------------------------------------|
| Common/Usual Name: | OPU Needle |
| Classification Name: | Assisted Reproduction Needles |
| Classification Regulation: | 884.6100 |
| Classification Panel: | Obstetrics/Gynecology |
| Product Code: | MQE |
| Device Class: | II |
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K112462
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#### 5. Predicate Devices
Vitrolife Sweden AB -- Follicle Aspiration Set, Reduced Single Lumen (K082727) Swemed Lab International AB - Swemed Follicle Aspiration Set, Double Lumen, Single Lumen, and Luer Needle (K991273)
#### Device Description 6.
The Kitazato OPU Needles are intended to puncture into the vaginal wall and obtain oocytes from ovarian follicles. The OPU Needle with Connection Tube, model number Type 2, product consists of Aspiration Needle with Connection Tube and Silicone Stopper Connector. The OPU Reduced Needle, model number Type 3, product consists of Reduced Aspiration Needle with Connection Tube and Silicone Stopper Connector.
The OPU Needle with Connection Tube, model number Type 2, includes the following models:
| Model | Color of<br>Hub | Needle<br>O.D. (mm) | Needle<br>Gauge | Needle Length (mm) | Connection Tube Length (mm) |
|-----------|-----------------|---------------------|-----------------|-----------------------------------|-------------------------------|
| Type2 -v1 | White | 1.65 | 16 | 200, 225, 250, 275, 300, 325, 350 | 200, 300, 400, 600, 800, 1000 |
| Type2 -v2 | Light<br>brown | 1.49 | 17 | 200, 225, 250, 275, 300, 325, 350 | 200, 300, 400, 600, 800, 1000 |
| Type2 -v3 | Pink | 1.25 | 18 | 200, 225, 250, 275, 300, 325, 350 | 200, 300, 400, 600, 800, 1000 |
| Type2 -v4 | Ivory | 1.06 | 19 | 200, 225, 250, 275, 300, 325, 350 | 200, 300, 400, 600, 800, 1000 |
| Type2 -v5 | Yellow | 0.90 | 20 | 200, 225, 250, 275, 300, 325, 350 | 200, 300, 400, 600, 800, 1000 |
| Type2 -v6 | Green | 0.80 | 21 | 200, 225, 250, 275, 300, 325, 350 | 200, 300, 400, 600, 800, 1000 |
| Type2 -v7 | Black | 0.70 | 22 | 200, 225, 250, 275, 300, 325, 350 | 200, 300, 400, 600, 800, 1000 |
| Type2 -v8 | Light<br>blue | 0.63 | 23 | 200, 225, 250, 275, 300, 325, 350 | 200, 300, 400, 600, 800, 1000 |
| Type2 -v9 | Purple | 0.55 | 24 | 200, 225, 250, 275, 300, 325, 350 | 200, 300, 400, 600, 800, 1000 |
The OPU Reduced Needle, mode number Type 3, includes the following models:
| Model | Needle<br>Gauge | Needle<br>Q.D.<br>(mm) | Narrow<br>Tip<br>Gauge | Narrow<br>Tip O.D.<br>(mm) | Needle Length<br>(mm) | Color of<br>Hub | Length of<br>Reduced<br>Needle<br>(mm) | Connection<br>Tube<br>Length<br>(mm) |
|-----------|-----------------|------------------------|------------------------|----------------------------|--------------------------------------|-----------------|----------------------------------------|--------------------------------------|
| Type3 -v1 | 18 | 1.25 | 21 | 0.80 | 200, 225, 250,<br>275, 300, 325, 350 | Green | 40-60 | 800 |
| Type3 -v2 | 18 | 1.25 | 22 | 0.70 | 200, 225, 250,<br>275, 300, 325, 350 | Black | 40-60 | 800 |
| Type3 -v3 | 18 | 1.20 | 23 | 0.63 | 200, 225, 250,<br>275, 300, 325, 350 | Light blue | 40-60 | 800 |
#### 7. Intended Use
The Kitazato OPU Needles consisting of:
- Kitazato OPU Needle with Connection Tube, model number Type 2
- . Kitazato OPU Reduced Needle, model number Type 3
are intended to obtain oocytes from ovarian follicles.
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K112462
page 3 of 3
### 8. Substantial Equivalence Discussion
The indication for use and technology of the OPU Needle are substantially equivalent to the identified predicate devices.
#### 9. Non-Clinical Testing
The needle mechanical tensile testing and mouse embryo testing results supports that all the specifications have met the acceptance criteria for the device. The Kitazato OPU Needles passed all testing and supports the claims of substantial equivalence.
- . Mechanical Tensile Testing: Tensile strength to withstand 22N for needle tube O.D. <0.55 mm
- . Bending Elasticity Testing: Return normal position after bending 8° from straight for needle tube O.D. ≤1.0 mm
- Folding Strength Testing: No fracture of needle tube is detected when needle tube . of O.D. ≤1.0 mm and length ≥12mm is folded to 90°
- Dimensional Testing: Passes outer diameter and length according to specifications .
- Endotoxin Testing: Endotoxin values conform to the value ≤20 EU/device �
- Sterility Testing: No microbial growth from sterility testing .
- t Mouse Embryo Assay: ≥80% expanded to blastocyst stage within 96 hours
The Kitazato OPU Needles were tested and complies with the applicable voluntary standards for biocompatibility and sterilization. The device passed all the testing in accordance with national and international standards.
#### 10. Conclusion
:
The Kitazato OPU Needles are substantially equivalent to its proposed predicate devices.
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## DEPARTMENT OF HEALTH & HUMAN SERVICES
Image /page/3/Picture/1 description: The image shows the logo for the U.S. Department of Health and Human Services. The logo consists of a stylized eagle with three stripes representing the department's mission. The text "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" is arranged in a circular fashion around the eagle.
Food and Drug Administration 10903 New Hampshire Avenue Document Control Center - WO66-G609 Silver Spring, MD 20993-002
November 26, 2012
KITAZATO Medical Co., Ltd. % Richard Vincins, CQA, CBA, RAC (US,EU) Vice President, Quality Assurance Emergo Group 611 West 5th Street, Third Floor AUSTIN TX 78701
Re: K112462
Trade/Device Name: Kitazato OPU Needle Regulation Number: 21 CFR§ 884.6100 Regulation Name: Assisted reproduction needles Regulatory Class: II Product Code: MQE Dated: November 6, 2012 Received: November 15, 2012
Dear Mr. Vincins:
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.
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## Page 2 - Richard Vincins, CQA, CBA, RAC(US,EU)
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 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/ResourcesforYou/Industry/default.htm.
Sincerely yours,
Herbert R. Lerner
-Acting Director 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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# Section 4 - Indications for Use Statement
#### 510(k) Number (if known): K112462
Device Name: Kitazato OPU Needle
#### Indications for Use:
The Kitazato OPU Needles consisting of:
- Kitazato OPU Needle with Connection Tube, model number Type 2 .
| Model | Color of Hub | Needle O.D. (mm) | Needle Gauge | Needle Length (mm) | Connection Tube Length (mm) |
|-----------|--------------|------------------|--------------|-----------------------------------|-------------------------------|
| Type2 -v1 | White | 1.65 | 16 | 200, 225, 250, 275, 300, 325, 350 | 200, 300, 400, 600, 800, 1000 |
| Type2 -v2 | Light brown | 1.49 | 17 | 200, 225, 250, 275, 300, 325, 350 | 200, 300, 400, 600, 800, 1000 |
| Type2 -v3 | Pink | 1.25 | 18 | 200, 225, 250, 275, 300, 325, 350 | 200, 300, 400, 600, 800, 1000 |
| Type2 -v4 | Ivory | 1.06 | 19 | 200, 225, 250, 275, 300, 325, 350 | 200, 300, 400, 600, 800, 1000 |
| Type2 -v5 | Yellow | 0.90 | 20 | 200, 225, 250, 275, 300, 325, 350 | 200, 300, 400, 600, 800, 1000 |
| Type2 -v6 | Green | 0.80 | 21 | 200, 225, 250, 275, 300, 325, 350 | 200, 300, 400, 600, 800, 1000 |
| Type2 -v7 | Black | 0.70 | 22 | 200, 225, 250, 275, 300, 325, 350 | 200, 300, 400, 600, 800, 1000 |
| Type2 -v8 | Light blue | 0.63 | 23 | 200, 225, 250, 275, 300, 325, 350 | 200, 300, 400, 600, 800, 1000 |
| Type2 -v9 | Purple | 0.55 | 24 | 200, 225, 250, 275, 300, 325, 350 | 200, 300, 400, 600, 800, 1000 |
- Kitazato OPU Reduced Needle, model number Type 3 .
| Model | Needle<br>Gauge | Needle<br>O.D.<br>(mm) | Narrow<br>Tip<br>Gauge | Narrow<br>Tip O.D.<br>(mm) | Needle Length<br>(mm) | Color of<br>Hub | Length of<br>Reduced<br>Needle<br>(mm) | Connection<br>Tube Length<br>(mm) |
|-----------|-----------------|------------------------|------------------------|----------------------------|--------------------------------------|-----------------|----------------------------------------|-----------------------------------|
| Type3 -v1 | 18 | 1.25 | 21 | 0.80 | 200, 225, 250, 275,<br>300, 325, 350 | Green | 40-60 | 800 |
| Type3 -v2 | 18 | 1.25 | 22 | 0.70 | 200, 225, 250, 275,<br>300, 325, 350 | Black | 40-60 | 800 |
| Type3 -v3 | 18 | 1.20 | 23 | 0.63 | 200, 225, 250, 275,<br>300, 325, 350 | Light blue | 40-60 | 800 |
are intended to obtain oocytes from ovarian follicles.
Prescription Use ____________________________ (Part 21 CFR 801 Subpart D) AND/OR Over-The-Counter Use _____________________________ (21 CFR 801 Subpart C)
(PLEASE DO NOT WRITE BELOW THIS LINE – CONTINUE ON ANOTHER PAGE IF NEEDED) .
Concurrence of CDRH, Office of Device Evaluation (ODE)
Herbert P. Lerner
Acting Director for Benjamin R. Fisher, Ph.D.
(Division Sign-Off) Division of Reproductive, Gastro-Renal, and Urological Devices K112462 510/k) Numhar
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.