Diagnostic ultrasound investigations: Imaging (B-mode), Time motion (M-mode), Pulsed wave Doppler (PW Doppler), Continuous wave Doppler (CW Doppler), Color Flow Mapping (CFM) and Color Time motion (CM mode).
Device Story
The UF-870AG is a mobile ultrasound console (approx. 19"x31"x53-57") featuring a keyboard, TFT screen, and various transducers. It performs B-mode, M-mode, PW/CW Doppler, Color Flow Mapping, and Color Time motion. Operated by clinicians in diagnostic settings, it processes ultrasound signals to produce real-time images and flow data. Healthcare providers use these outputs to visualize internal structures and hemodynamics, aiding in clinical diagnosis and patient management. The device benefits patients by providing non-invasive diagnostic imaging.
Clinical Evidence
No clinical data. The device relies on the same technology and principles as existing legally marketed devices. Non-clinical bench testing confirmed compliance with acoustic output, thermal, electrical, and mechanical safety standards.
Technological Characteristics
Mobile ultrasound console with TFT display. Supports B-mode, M-mode, PW/CW Doppler, CFM, and CM modes. Transducers include FUT-SA162-5A, FUT-1-5PA, FUT-CA602-5A, FUT-3-8PA, FUT-3-8TEM, FUT-TVA114-7A, FUT-4-9MC, FUT-LA385-12A, FUT-5-12L50, FUT-PEN2, FUT-PEN4, and FUT-PEN8. Design conforms to 21 CFR 820 and ISO 13485:2003.
Indications for Use
Indicated for diagnostic ultrasound imaging or fluid flow analysis of the human body, including fetal, abdominal, pediatric, small organs (thyroid, breast, testicle), adult cephalic, cardiac, transesophageal, transvaginal, and peripheral vascular applications, depending on the specific transducer used.
Regulatory Classification
Identification
A diagnostic ultrasonic transducer is a device made of a piezoelectric material that converts electrical signals into acoustic signals and acoustic signals into electrical signals and intended for use in diagnostic ultrasonic medical devices. Accessories of this generic type of device may include transmission media for acoustically coupling the transducer to the body surface, such as acoustic gel, paste, or a flexible fluid container.
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08/919
Fukuda Denshi Co, Ltd 39-4 Hongo 3-chome, Bunkyo-ku, Tokyo, Japan
1. Submitter Information
Image /page/0/Picture/2 description: The image contains a logo or emblem with the text "FLORIDA BEACH". The text is arranged in two lines, with "FLORIDA" on the top line and "BEACH" on the bottom line. The logo also includes a triangular shape above the text, which may represent a mountain or a wave.
## Summary of Safety and Effectiveness
Prepared in accordance with 21 CFR Part 807.92(c)
**SEP - 9 2008**
| a. Submitter: | Fukuda Denshi Co. Ltd.<br>39-4 Hingo 3-chome, Bunkyo-ku<br>Tokyo 113-8420<br>Japan |
|--------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------|
| A. Contact Person: | Mr. Loran Van Noy<br>Fukuda Denshi USA INC.<br>17725 N.E. 65th Street Bldg. C<br>Redmond, WA 98052-4911<br>Phone: 425-881-7737<br>Fax: 425-869-2018 |
| B. Date Prepared: | 23 June 2008 |
#### 2. Name of device
- a. Trade name: UF-870AG
- Common name:Medical Diagnostic Ultrasound Imaging System and transducers C.
- Classification name:Ultrasonic Pulsed Doppler Imaging System 21 CFR 892.1550 D. 90-IYN Ultrasonic Pulsed Echo Imaging System 21 CFR 892.1560 90-110 Diagnostic Ultrasonic Transducer 21 CFR 892.1570 90-ITX
- 3. Equivalent Legally-Marketed Devices:
Kontron Medical Sigma 5000 Series Imagic, K050099, K053084, K061437
The technological characteristics of the predicate device are the same as those of the new device.
- 4. Description
The UF-870AG is an ultrasound instrument intended to perform the following diagnostic ultrasound investigations: Imaging (B-mode), Time motion (M-mode), Pulsed wave Doppler (PW Doppler), Continuous wave Doppler (CW Doppler), Color Flow Mapping (CFM) and Color Time motion (CM mode).
The submission also includes the transducers necessary for these procedures.
The system is a mobile console approximately 19" wide, 31" deep and 53-57" high equipped with a keyboard control panal, a large TFT screen, assorted transducers and image storage or hard-copy devices.
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Fukuda Denshi Co, Ltd 39-4 Hongo 3-chome, Bunkyo-ku, Tokyo, Japan
Image /page/1/Picture/1 description: The image contains a collection of text elements arranged in a visually complex manner. The text appears to be rendered in a pixelated or low-resolution style, making it difficult to discern individual characters or words. The overall composition suggests a collage or arrangement of textual fragments, possibly forming a larger design or pattern.
#### 5. Intended use
Diagnostic ultrasound investigations: Imaging (B-mode), Time motion (M-mode), Pulsed wave Doppler (PW Doppler), Continuous wave Doppler (CW Doppler), Color Flow Mapping (CFM) and Color Time motion (CM mode).
- 6. Performance Data
- a. Non-clinical tests: The device has been evaluated for acoustic output and thermal, and has been found conform with applicable medical device safety standards. Cleared patient contact materials, electrical and mechanical safety are unchanged.
- Clinical tests: Since the UF-870AG uses the same technology and principles as existing E. devices, clinical tests are not required.
- Conclusion: Intended uses and other key features are consistent with traditional clinical F. practice, FDA guidelines and established methods of patient examination. The design and development process of the manufacturer conforms with 21 CFR 820 Quality System Regulation and ISO13485:2003 quality system standards. The product is designed to conform with applicable medical device safety standards and compliance is verified through independent evaluation with ongoing factory surveillance. Diagnostic ultrasound has accumulated a long history of safe and effective performance. Therefore it is the opinion of Fukuda Denshi that the UF-870AG is substantially equivalent with respect to safety and effectiveness to devices currently cleared for market.
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Image /page/2/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 words "DEPARTMENT OF HEALTH & HUMAN SERVICES. USA" arranged around the perimeter. Inside the circle is an abstract symbol resembling an eagle or bird in flight, rendered in a stylized manner.
Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850
SEP - 9 2008
Fukuda Denshi % Mr. Robert Mosenkis President CITECH 5200 Butler Pike PLYMOUTH MEETING PA 19462-1298
Re: K081919
Trade/Device Name: UF-870AG Diagnostic Ultrasound System Regulation Number: 21 CFR 892.1550 Regulation Name: Ultrasonic pulsed doppler imaging system Regulatory Class: II Product Code: IYO, ITX, and IYN Dated: August 22, 2008 Received: August 25, 2008
Dear Mr. Mosenkis:
We have reviewed your Section 510(k) premarket 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, listing of devices, good manufacturing practice, labeling, and prohibitions against misbranding and adulteration.
This determination of substantial equivalence applies to the following transducers intended for use with the UF-870AG Diagnostic Ultrasound System, as described in your premarket notification:
Transducer Model Number
FUT-SA162-5A FUT-1-5PA FUT-CA602-5A FUT-3-8 PA FUT-3-8TEM
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## Pagera Reme Me Reger HEALTH & HUMAN SERVICES
Image /page/3/Picture/2 description: The image shows the logo for the U.S. Department of Health & Human Services. The logo consists of a stylized eagle or bird-like figure with three wing-like extensions, positioned to the right of the department's seal. The seal is circular and contains the text "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" around the perimeter.
FUT-TV A114-7A FUT-4-9-MC FUT-LA385-12A FUT-5-12L50 FUT-PEN2 FUT-PEN4 FUT-PEN8
Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850
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 (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.
This determination of substantial equivalence is granted on the condition that prior to shipping the first device, you submit a postclearance special report. This report should contain complete information, including acoustic output measurements based on production line devices, requested in Appendix G, (enclosed) of the Center's September 30, 1997 "Information for Manufacturers Seeking Marketing Clearance of Diagnostic Ultrasound Systems and Transducers." If the special report is incomplete or contains unacceptable values (e.g., acoustic output greater than approved levels), then the 510(k) clearance may not apply to the production units which as a result may be considered adulterated or misbranded.
The special report should reference the manufacturer's 510(k) number. It should be clearly and prominently marked "ADD-TO-FILE" and should be submitted in duplicate to:
> Food and Drug Administration Center for Devices and Radiological Health Document Mail Center (HFZ-401) 9200 Corporate Boulevard Rockville, Maryland 20850
This letter will allow you to begin marketing your device as described in your 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 market.
If you desire specific advice for your device on our labeling regulation (21 CFR Part 801), please contact the Office of Compliance at (240) 276-0120. Also, please note the regulation entitled,
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"Misbranding by reference to premarket notification" (21CFR Part 807.97). Ұдығаа юралық (21) other general information on your responsibilities under the Division@fpmall Boulevard Manufacturers, International and Consumer Assistance at its toll-free number (800)1838209968 (240) 276-3150 or at its Internet address http://www.fda.gov/cdrh/industry/support/index.html
If you have any questions regarding the content of this letter, please contact Paul Hardy at (240) 276-3666.
Sincerely yours,
Herbert Lewin
Joyce M. Whang, Ph.D. Acting Director, Division of Reproductive, Abdominal, and Radiological Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure(s)
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Image /page/5/Picture/1 description: The image contains the words "FLORIDA DEPTH". The text is arranged vertically, with "FLORIDA" on top of "DEPTH". The image is low resolution, making the text appear pixelated. The background is white.
#### System: UF-870AG
Intended Use: Diagnostic ultrasound imaging or fluid flow analysis of the human body as follows:
| Clinical Application | A | B | M | PW D | CW D | Color Doppler | Amplitude Doppler | Color Velocity Imaging | Combined (specify) | Other (specify) |
|-----------------------------------|---|---|---|------|------|---------------|-------------------|------------------------|--------------------|-----------------|
| Ophthalmic | | | | | | | | | | |
| Fetal | | N | N | N | | N | N | | N | |
| Abdominal | | N | N | N | | N | N | | N | |
| Intraoperative (specify) | | | | | | | | | | |
| Intraoperative Neuro-<br>logical | | | | | | | | | | |
| Pediatric | | N | N | N | | N | N | | N | |
| Small organs (specify) | | N | N | N | | N | N | | N | |
| Neonatal Cephalic | | | | | | | | | | |
| Adult Cephalic | | N | N | N | N | N | N | | N | |
| Cardiac | | N | N | N | N | N | N | | N | |
| Transesophageal | | N | N | N | N | N | N | | N | |
| Transrectal | | | | | | | | | | |
| Transvaginal | | N | N | N | | N | N | | N | |
| Transurethral | | | | | | | | | | |
| Intravascular | | | | | | | | | | |
| Peripheral Vascular | | N | N | N | N | N | N | | N | |
| Laparascopic | | | | | | | | | | |
| Musculo-skeletal<br>Conventional | | N | N | N | | N | N | | N | |
| Musculo-skeletal Super-<br>ficial | | N | N | N | | N | N | | N | |
| Other (specify) | | | | | | | | | | |
N= new indication; P= previously cleared by FDA; E= added under Appendix E Additional Comments:
· Small organs: Thyroid, Breast, Testicle
· Combined modes: B + M, B + PWD, Color Doppler + PWD, Amplitude Doppler + PWD
- …………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………… �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������
Concurrence of CDRH, Office of Device Evaluation (ODE)
| | Prescription Use (Per 21 CFR 801.109) | |
|----------------------------------------|-----------------------------------------|--------------|
| UF-870AG, V01-01 : 510(k<br>Edition 1B | July 2008 | Page 3 of 15 |
| | (Division Sign-Off) | |
| | Division of Reproductive, Abdominal and | |
| | Radiological Devices<br>510/k) Numher | |
{6}------------------------------------------------
Image /page/6/Picture/1 description: The image contains the text "FUKUDA DENSHI". The text is displayed in a stylized font, with a textured or patterned effect. The overall impression is of a logo or brand name.
#### Diagnostic Ultrasound Indications for Use Form Transducer: FUT-SA162-5A System: UF-870AG
Intended Use: Diagnostic ultrasound imaging or fluid flow analysis of the human body as follows:
| | Mode of Operation | | | | | | | | | |
|-----------------------------------|-------------------|---|---|------|------|------------------|----------------------|------------------------------|-----------------------|--------------------|
| Clinical Application | A | B | M | PW D | CW D | Color<br>Doppler | Amplitude<br>Doppler | Color<br>Velocity<br>Imaging | Combined<br>(specify) | Other<br>(specify) |
| Ophthalmic | | | | | | | | | | |
| Fetal | | | | | | | | | | |
| Abdominal | | | | | | | | | | |
| Intraoperative (specify) | | | | | | | | | | |
| Intraoperative Neuro-<br>logical | | | | | | | | | | |
| Pediatric | | | | | | | | | | |
| Small organs (specify) | | | | | | | | | | |
| Neonatal Cephalic | | | | | | | | | | |
| Adult Cephalic | N | N | N | N | N | N | N | | N | |
| Cardiac | N | N | N | N | N | N | N | | N | |
| Transesophageal | | | | | | | | | | |
| Transrectal | | | | | | | | | | |
| Transvaginal | | | | | | | | | | |
| Transurethral | | | | | | | | | | |
| Intravascular | | | | | | | | | | |
| Peripheral Vascular | N | N | N | N | N | N | N | | N | |
| Laparascopic | | | | | | | | | | |
| Musculo-skeletal<br>Conventional | | | | | | | | | | |
| Musculo-skeletal Super-<br>ficial | | | | | | | | | | |
| Other (specify) | | | | | | | | | | |
N= new indication; P= previously cleared by FDA; E= added under Appendix E Additional Comments:
· Combined modes: B + M, B + PWD, Color Doppler + PWD, Amplitude Doppler + PWD
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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.