BR-FHUS Navigation 1.0 is intended as a standalone software device installed on a standalone windows-based computer to assist physicians with tools for electromagnetic tracking of instruments in respect of breast ultrasound images generated from FDA cleared handheld ultrasound devices. The device is not intended to be used in the environment of strong magnetic or electromagnetic fields, such as in Magnetic Resonance Imaging (MRI) room. BR-FHUS Navigation 1.0 is indicated for use as an adjunct to handheld breast ultrasound to assist the physicians in their scanning process. The scanning paths are displayed on a route map and provide quality control of scanning to provide an overall observation of scanning process.
Device Story
Standalone software on Windows PC; assists physicians during breast ultrasound scanning. Inputs: video feed from ultrasound system (via frame grabber) and spatial data from 3D electromagnetic tracking system (Ascension Technologies). Tracking system uses transmitter, sensor electronics, and 6DOF sensor clipped to ultrasound transducer. Device transforms inputs into real-time scanning path visualization on a route map; provides quality control metrics for scanning coverage. Used in clinical settings by physicians. Output: visual route map and scanning quality feedback. Benefits: assists physician in ensuring comprehensive breast ultrasound scanning; provides observation of scanning process.
Clinical Evidence
Bench testing only. Verification and validation testing performed in-house using breast phantoms in a simulated work environment to confirm functional requirements and accuracy specifications.
Technological Characteristics
Standalone software on off-the-shelf PC (Intel Core i5, 8GB RAM, Windows). Electromagnetic tracking system (Ascension Technologies) with 6DOF sensor (Model 800) and urethane clip. Image capture via PCI or USB frame grabber. Connectivity: wired Ethernet, HDMI, USB. No specific material standards cited for hardware components.
Indications for Use
Indicated for use as an adjunct to handheld breast ultrasound to assist physicians in the scanning process for breast imaging. Not for use in strong magnetic or electromagnetic fields (e.g., MRI rooms).
Regulatory Classification
Identification
An ultrasonic pulsed echo imaging system is a device intended to project a pulsed sound beam into body tissue to determine the depth or location of the tissue interfaces and to measure the duration of an acoustic pulse from the transmitter to the tissue interface and back to the receiver. This generic type of device may include signal analysis and display equipment, patient and equipment supports, component parts, and accessories.
Special Controls
*Classification.* Class II (special controls). A biopsy needle guide kit intended for use with an ultrasonic pulsed echo imaging system only is exempt from the premarket notification procedures in subpart E of part 807 of this chapter subject to the limitations in § 892.9.
Predicate Devices
Tractus TissueMapper Image Recording System (K131489)
Submission Summary (Full Text)
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Public Health Service
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Food and Drug Administration 10903 New Hampshire Avenue Document Control Center - WO66-G609 Silver Spring, MD 20993-0002
September 29, 2017
TaiHao Medical Inc. % Chiu S. Lin, Ph.D. President Lin & Associates, LLC 5614 Johnson Avenue BETHESDA MD 20817
Re: K171309
Trade/Device Name: BR-FHUS Navigation 1.0 Regulation Number: 21 CFR 892.1560 Regulation Name: Ultrasonic pulsed echo imaging system Regulatory Class: II Product Code: IYO Dated: September 20, 2017 Received: September 20, 2017
Dear Dr. Lin:
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 device
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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 contact the Division of Industry and Consumer Education (DICE) 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. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR 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 Industry and Consumer Education (DICE) 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,
Michael D. O'Hara
For
Robert Ochs, Ph.D. Director Division of Radiological Health Office of In Vitro Diagnostics and Radiological Health Center for Devices and Radiological Health
Enclosure
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## Indications for Use
510(k) Number (if known) K171309
Device Name BR-FHUS Navigation 1.0
#### Indications for Use (Describe)
BR-FHUS Navigation 1.0 is intended as a standalone software device installed on a standalone windows-based computer to assist physicians with tools for electromagnetic tracking of instruments in respect of breast ultrasound images generated from FDA cleared handheld ultrasound devices. The device is not intended to be used in the environment of strong magnetic or electromagnetic fields, such as in Magnetic Resonance Imaging (MRI) room. BR-FHUS Navigation 1.0 is indicated for use as an adjunct to handheld breast ultrasound to assist the physicians in their scanning process. The scanning paths are displayed on a route map and provide quality control of scanning to provide an overall observation of scanning process.
Type of Use (Select one or both, as applicable)
| <div> <span> <span style="font-size:100%;">☑</span> Prescription Use (Part 21 CFR 801 Subpart D) </span> </div> |
|-----------------------------------------------------------------------------------------------------------------------------------------------------|
| <div> <span> <span style="font-size:100%;">☐</span> Over-The-Counter Use (21 CFR 801 Subpart C) </span> </div> |
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# TaiHao Medical Inc.
The Leader of Medical Software
# 5. 510(k) Summary of Safety and Effectiveness Information
#### 5.1. Identification of Submitter:
Submitter: TaiHao Medical Inc.
Address: 3F .- 8, No.100, Sec. 2, Heping E. Rd., Da'an Dist., Taipei City 106, Taiwan (R.O.C.)
Phone: 886-2-2736-5679
Contact: HSIN HUNG (Simon) LAI
Title: President
886-2-2736-5679 Phone:
Email: simonlai(@taihaomed.com
Manufacturer: TaiHao Medical Inc.
US Agent and Contact: C Chiu S. Lin, Ph.D.
LIN & ASSOCIATES, LLC
Address: 5614 Johnson Avenue
Bethesda, MD 20817
Phone: (0) 301-591-3895
Email: cslin(@lin-associates.com
Date prepared: April 20, 2017
#### 5.2. Identification of Product
Device Trade Name: BR-FHUS Navigation 1.0
Common and Usual Name: Ultrasonic Pulsed Echo Imaging System
Regulation Number: 21 CFR 892.1560
## Classification Product Code: IYO
Classification: Class II
Predicate Device: Tractus TissueMapper Image Recording System (K131489)
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The Leader of Medical Software
#### 5.3. Intended Use / Indications for Use
BR-FHUS Navigation 1.0 is intended as a standalone software device installed on a standalone windows-based computer to assist physicians with tools for electromagnetic tracking of instruments in respect of breast ultrasound images generated from FDA cleared handheld ultrasound devices. The device is not intended to be used in the environment of strong magnetic or electromagnetic fields, such as in Magnetic Resonance Imaging (MRI) room. BR-FHUS Navigation 1.0 is indicated for use as an adjunct to handheld breast ultrasound to assist the physicians in their scanning process. The scanning paths are displayed on a route map and provide quality control of scanning to provide an overall observation of scanning process.
#### 5.4. Technological Characteristics
BR-FHUS Navigation 1.0 requires the following:
- ◆ Off-the-shelf PC Computer to run BR-FHUS Navigation 1.0, which meets the following requirements
- Minimum 500 GB Hard Drive A
- > Minimum Intel Core i5 6400 processor
- Operating System: Windows A
- A Minimum 8GB RAM
- >>>2 HDMI Ports
- > >4 USB Ports of USB 2.0 or better
- > Wired Ethernet
- ◆ Computer User Interface
- A Keyboard
- Mouse A
- A Display
- . Minimum display size 17"
- Minimum display resolution 1920*1080
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The Leader of Medical Software
- ◆ Off-the-shelf Image Capture Device
- > PCI frame grabber card inserted into computer card slot of computer noted above or USB frame grabber device connected to computer by cable
- > Video cable from ultrasound system to image capture device
- ◆ Off-the-shelf 3D electromagnetic tracking system (Ascension Technologies)
- > Sensor position interface electronics (trakSTAR/driveBAY) connected to computer by cable
- > Sensor position transmitter (Mid-Range Transmitter) and electronics connected to trakSTAR/driveBAY by cable
- > Six degrees of freedom (6DOF) sensor (Model 800) and electronics connected to trakSTAR/driveBAY by cables
- > Urethane clip for affixing a 6DOF sensor to ultrasound transducer
### 5.5. Comparison with Predicate Devices
BR-FHUS Navigation 1.0 is substantially equivalent to Tractus TissueMapper Image Recording System (K131489) with a general intended use for recording ultrasound sequence images with probe's position. Minor technological characteristics differences do not raise any new questions of safety and effectiveness.
| | BR-FHUS Navigation 1.0,<br>k TBD | Tractus TissueMapper<br>Image Recording System,<br>k131489 |
|--------------------------------|-------------------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------|
| Manufacturer | TaiHao Medical Inc. | Tractus Corporation |
| Regulation Number | 21 CFR 892.1560 | 21 CFR 892.1560 |
| Regulation Name | Ultrasonic Pulsed Echo<br>Imaging System | Ultrasonic Pulsed Echo<br>Imaging System |
| Product Code | IYO | IYO |
| Intended Use / Indications for | BR-FHUS Navigation 1.0 is<br>intended as a standalone | The Tractus TissueMapper<br>Image Recording System is |
| | | |
| Use | software device installed on a | intended to provide |
| | standalone windows-based | physicians with tools for |
| | computer to assist physicians | electromagnetic racking of |
| | with tools for electromagnetic | instruments with respect to |
| | tracking of instruments in | image data. |
| | respect of breast ultrasound | |
| | images generated from FDA | |
| | cleared handheld | |
| | ultrasound devices. The device | |
| | is not intended to be used in | |
| | the environment of strong | |
| | magnetic or electromagnetic | |
| | fields, such as in Magnetic | |
| | Resonance Imaging (MRI) | |
| | room. BR-FHUS Navigation | |
| | 1.0 is indicated for use as an | |
| | adjunct to handheld breast | |
| | ultrasound to assist the | |
| | physicians in their scanning | |
| | process. The scanning paths | |
| | are displayed on a route map | |
| | and provide quality control of | |
| | scanning to provide an overall | |
| | observation of scanning | |
| | process. | |
| User Population | Skilled medical professionals | Skilled medical professionals |
| Primary Components | Software: Position Sensor | Software: Position Sensor |
| | Monitoring, Image | Monitoring, Image |
| | presentation and recording, | presentation and recording, |
| | user interface. | user interface. |
| | Hardware: Position Sensor | Hardware: Position Sensor |
| | Clip (electromagnetic), Sensor | Clip (electromagnetic), |
| | Transmitter, Control | Sensor Transmitter, Control |
| | Computer. | Computer. |
| Accessories | Media storage (USB) | Media storage (USB) |
| Virtual Navigator Software | Yes | Yes |
| Primary Application | Small Parts (Breast) | Abdominal, Small Parts<br>(Breast) |
| Tracking System | Electromagnetic (Ascension) | Electromagnetic (Ascension) |
| Software | Yes | Yes |
| 3-D Rendering | No | Yes |
| Supported Imaging Modalities | Ultrasound | Ultrasound |
| Software Level of Concern | Moderate level of concern | Moderate level of concern |
| Image Archiving | Yes | Yes |
| Scanning Path Recording | Yes | Yes |
| Scanning Quality Control | Yes | No |
| Performance Testing | Results from software<br>verification and validation<br>testing performed per internal<br>procedures. | From the 510(k) Summary<br>that is available on the FDA<br>database, it appears that no<br>data from performance testing<br>was submitted. |
The comparison table between our device and the predicate devices is provided below:
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# TaiHao Medical Inc.
The Leader of Medical Software
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The Leader of Medical Software
#### 5.6. Performance Data
Performance, Verification and Validation testing for BR-FHUS Navigation 1.0 was performed per internal procedures to ensure that all functional requirements have been met, and that core functions execute as expected. Testing was conducted in-house by trained personnel in a simulated workenvironment using breast phantoms to obtain the functional and accuracy test results.
The result of these tests demonstrates that BR-FHUS Navigation 1.0 validation is with in specification. As such, BR-FHUS Navigation 1.0 is as safe and effective as the predicate devices and is substantially equivalent to existing products on the market today.
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# TaiHao Medical Inc.
The Leader of Medical Software
BR-FHUS Navigation 1.0 indications for use are drawn from the indications for use of a legally marketed predicate device: Tractus TissueMapper Image Recording System. BR-FHUS Navigation 1.0 draws from features of this predicate device. As such, the features provided by BR-FHUS Navigation 1.0 do not in themselves raise new concerns of safety or effectiveness.
In all instances, BR-FHUS Navigation 1.0 functioned as intended and the operation observed was as expected.
#### 5.7. Substantial Equivalence
The intended use, technological characteristics, and major functionality of BR-FHUS Navigation 1.0. is similar to the predicate device. Neither new safety nor new effectiveness issues are introduced during or after using this device. The performance data generated, as described, demonstrates that our device is as safe and effective, as compared to the predicate device. Therefore, we believe BR-FHUS Navigation 1.0 is substantially equivalent to the predicate device.
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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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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.
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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.
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.
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Reading rule for every project: how many summaries do you read in full?
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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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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.
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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.