K123254 · B-K Medical Aps · IYN · Feb 13, 2013 · Radiology
Device Facts
Record ID
K123254
Device Name
ULTRASOUND SCANNER FLEX FOCUS
Applicant
B-K Medical Aps
Product Code
IYN · Radiology
Decision Date
Feb 13, 2013
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 892.1550
Device Class
Class 2
Indications for Use
Diagnostic ultrasound imaging or fluid flow analysis of the human body.
Device Story
Ultrasound Scanner Flex Focus 1202 is a diagnostic ultrasound system for imaging and fluid flow analysis. It processes acoustic signals from linear, convex, phased, and mechanical sector transducers to generate B-mode, M-mode, PWD, CFM (Color/Power Doppler), and Tissue Harmonic images. Optional modules include 3-D reconstruction of 2-D images and Vector Flow Imaging (VFI) for visualizing axial and transverse velocity. Used in clinical settings (e.g., OR, clinic) by physicians or trained clinicians for diagnostic exams and biopsy guidance. The system performs geometric measurements and calculations. Output is displayed on-screen for real-time clinical decision-making, aiding in diagnosis and interventional procedures. The device supports non-monitoring ECG input for image synchronization.
Clinical Evidence
Bench testing only. The device underwent thermal, mechanical, and electrical safety testing by a recognized Certified Body. Acoustic output reporting complies with FDA guidance 'Information for Manufacturers Seeking Clearance of Diagnostic Ultrasound Systems and Transducers' (2008). No clinical data was required for this 510(k) clearance.
Technological Characteristics
Diagnostic ultrasound system using pulsed echo and Doppler imaging. Transducers: linear, convex, phased, and mechanical sector arrays. Biocompatible patient contact materials. Acoustic output: Track 3, MI ≤ 1.9, Ispta ≤ 720 mW/cm², TI ≤ 6.0. Connectivity: supports non-monitoring ECG input. Software includes geometric measurement and calculation packages, 3-D reconstruction, and Vector Flow Imaging (VFI).
Indications for Use
Indicated for diagnostic ultrasound imaging and fluid flow analysis in abdominal, cardiac, fetal, intraoperative, neurosurgical, obstetric, transrectal, small organ (breast, testis, penis), transvaginal, and musculoskeletal clinical applications. Includes biopsy needle guidance, geometric measurements, and non-monitoring ECG superimposition.
Regulatory Classification
Identification
An ultrasonic pulsed doppler imaging system is a device that combines the features of continuous wave doppler-effect technology with pulsed-echo effect technology and is intended to determine stationary body tissue characteristics, such as depth or location of tissue interfaces or dynamic tissue characteristics such as velocity of blood or tissue motion. This generic type of device may include signal analysis and display equipment, patient and equipment supports, component parts, and accessories.
Predicate Devices
B-K Medical Ultrasound Scanner Flex Focus 1202 (K081154)
B-K Medical Ultrasound Scanner Pro Focus 2202 (K100919)
Submission Summary (Full Text)
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#### Attachment 4
#### 510(k) Summary:
FEB 1 3 2013
This summary is provided as part of this Premarket Notification in compliance with 21CRF, Section 807.92.
Submitters name: B-K Medical Address: Mileparken 34, DK2730 Herlev, Denmark Phone: +45 44528100 Fax: +45 44528199 Contact person: Randi Hauerberg, Regulatory Affairs Manager Date prepared: May 9, 2012
Trade name: Ultrasound Scanner Flex Focus 1202 Common name: Diagnostic Ultrasound System Classification names: (90 IYO, CFR 892.1560) Ultrasonic Pulsed Echo Imaging System Ultrasonic Pulsed Doppler Imaging System (90 IYN, CFR 892.1560) Diagnostic Ultrasonic Transducer (90 ITX, CFR 892.1570)
Identification of predicate, legally marketed device: B-K Medical Ultrasound Scanner Flex Focus 1202, K081154 B-K Medical Ultrasound Scanner Pro Focus 2202, K100919
#### Device description:
Flex Focus 1202 supports the following scanning modes and combinations thereof: B-mode (incl.Tissue Harmonic Imaging), M-mode, PWD mode, CFM mode, Amplitude (Power) Doppler mode.
The system can perform simple geometric measurements, and perform calculations in the areas of Vascular, Urology, Cardiology and OB/GYN applications.
The system can guide biopsy- and puncture needles.
An optional 3-D module can reconstruct a series of 2-D images into a single 3-D volume and display this on the screen.
An optional Vector Flow Imaging (VFI) module: Color Flow Mapping (CFM) imaging mode with the ability to visualize both the axial and the transverse velocity.
#### Transducers
Transducers are linear arrays, convex arrays, phased arrays and mechanical sector. The patient contact materials are biocompatible.
All transducers used together with Flex Focus 1202 are Track 3 transducers.
#### Acoustic output
The system controlling the Acoustic Output in the modified Flex Focus 1202 is the same as the system in Flex Focus 1200. The system will assure that the acoustic output always will stay below the pre-amendments upper limits i.e. Ispta ≤ 720 mW/cm² and MI ≤ 1.9 (Track 3, non ophthalmic).
The Thermal Index values are maximum 6.0, i.e. TI ≤ 6.0
{1}------------------------------------------------
#### Attachment 4
#### Clinical measurement accuracy
Clinical measurements and calculations are described and accuracies are provided in the User Information.
#### Thermal, mechanical and electrical safety.
The scanner Flex Focus 1202 has been tested by a recognized Certified Body.
#### Acoustic Output Reporting
The Acoustic Output Reporting is made according to the standards required by "Information for Manufacturers Seeking Clearance of Diagnostic Ultrasound Systems and Transducers, FDA, CDRH, September 9, 2008"
Intended use: Diagnostic ultrasound imaging or fluid flow analysis of the human body.
#### Summary of Technological Characteristics – Predicate Device Compared to Modified Device
| | Predicate device<br>K081154,<br>Ultrasound scanner<br>Flex Focus 1202 | Predicate device<br>K100919,<br>Ultrasound scanner<br>Pro Focus 2202 | Modified device (this<br>application),<br>Ultrasound scanner<br>Flex Focus 1202 |
|--------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Modes of operation<br>Ref.: [1] Appendix G | B, M, PWD, CFM1)<br>and combinations.<br>Tissue harmonic<br>imaging. | B, M, PWD, CFM1)+2) and combinations<br>Tissue harmonic<br>imaging. | B, M, PWD, CFM1)+2) and combinations<br>Tissue harmonic<br>imaging. |
| Intended Use: | Diagnostic ultrasound<br>imaging or fluid flow<br>analysis of the human<br>body as follows: | Diagnostic ultrasound<br>imaging or fluid flow<br>analysis of the human<br>body as follows: | Diagnostic ultrasound<br>imaging or fluid flow<br>analysis of the human<br>body as follows: |
| Indications For Use: | Abdominal<br>Cardiac<br>Fetal (incl Obstetrics)<br>Intraoperative<br>Transurethral<br>Neurosurgery<br>Pediatrics<br>Transrectal<br>Small Parts (organs)<br>Transvaginal<br>Peripheral vascular<br>Muskulo-skeletal<br>(conventional and<br>superficial) | Abdominal<br>Cardiac<br>Fetal (incl Obstetrics)<br>Intraoperative<br>Transurethral<br>Neurosurgery<br>Pediatrics<br>Transrectal<br>Small Parts (organs)<br>Transvaginal<br>Peripheral vascular<br>Muskulo-skeletal<br>(conventional and<br>superficial) | Abdominal<br>Cardiac<br>Fetal (incl Obstetrics)<br>Intraoperative<br>Transurethral<br>Neurosurgery<br>Pediatrics<br>Transrectal<br>Small Parts (organs)<br>Transvaginal<br>Peripheral vascular<br>Muskulo-skeletal<br>(conventional and<br>superficial) |
| Features | | ECG (not monitoring) | |
1) CFM= Color Flow Mapping=Color Doppler and Amplitude (Power) Doppler.
{2}------------------------------------------------
### Attachment 4
2) Includes Vector Flow Imaging
### Technological characteristics compared to the predicate device
The predicate device has the same major technological characteristics as the subject device described above.
Minor differences consist: Optional Vector Flow Imaging (VFI) module.
{3}------------------------------------------------
#### DEPARTMENT OF HEALTH & HUMAN SERVICES
Image /page/3/Picture/1 description: The image shows the logo for the Department of Health & Human Services - USA. The logo is a circular seal with the words "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" arranged around the perimeter. Inside the circle is a stylized eagle emblem with three wavy lines representing the department's mission.
#### Public Health Service
Food and Drug Administration 10903 New Hampshire Avenue Document Control Center - WO66-G609 Silver Spring, MD 20993-002
February 13, 2013
B-K MEDICAL APS C/O Randi Hauerberg Regulatory Affairs Manager MILEPARKEN 34 DENMARK DK-2730
Re: K123254
Trade/Device Name: Ultrasound Scanner Flex Focus Regulation Number: 21 CFR 892.1550 Regulation Name: Ultrasonic Pulsed Doppler Imaging System Regulatory Class: Class II Product Code: IYN, IYO, and ITX Dated: January 14, 2013 Received: January 16, 2013
Dear Randi Hauerberg:
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.
This determination of substantial equivalence applies to the following transducers intended for use with the Ultrasound Scanner Flex Focus 1202, as described in your premarket notification:
> Transducer Model Number 8670
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 895. 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
{4}------------------------------------------------
Page 2 - Randi Hauerberg
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 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 go to http://www.fda.gov/AboutFDA/CentersOffices/CDRH0ffices/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.
If you have any questions regarding the content of this letter, please contact Robert Ochs at (301) 796-6661.
Sincerely yours,
# Sean M. Boyd -S for
Janine M. Morris Director, Division of Radiological Health Office of In Vitro Diagnostics and Radiological Health Center for Devices and Radiological Health
Enclosure
{5}------------------------------------------------
### Indications for Use
#### 510(k) Number (if known): K123254
Device Name: Ultrasound Scanner Flex Focus 1202
Indications for Use:
Ultrasound scanner and transducers for B, Tissue and Contrast Harmonic Imaging, M, PWD, CWD, Color Doppler, Vector Flow Imaging and combined mode imaging.
Signal analysis and display.
Guidance of biopsy needles, geometrical measurements and calculation of parameters.
Non monitoring ECG for superimposing the ultrasound information.
An optional 3-D unit can reconstruct a series of 2-D images into a single 3-D volume and display this on the screen.
An optional Vector Flow Imaging (VFI) module: Color Flow Mapping (CFM) imaging mode with the ability to visualize both the axial and the transverse velocity.
Clinical applications: Abdominal, Cardiac, Fetal, Intraoperative, Neurosurgery, Obstetrics, Transrectal, Small organs, Transvaginal, Musculoskeletal.
#### Details on specific Indication for Use forms
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 IF NEEDED)
Concurrence of CDRH, Office of In Vitro Diagnostics and Radiological Health (OIR)
# Sean M. Boyd -S
(Division Sign Off) Division of Radiological Health Office of In Vitro Diagnostic and Radiological Health
K123254 510(k)
Page 1 of 3
{6}------------------------------------------------
### Indications for Use
### DIAGNOSTIC ULTRASOUND INDICATIONS FOR USE FORM
System:1202 Transducer: 8670
Intended Use; Diagnostic ultrasound imaging or fluid flow analysis of the human body as follows:
| Clinical Application | | Mode of Operation | | | | | | |
|---------------------------|---------------------------------|-------------------|---|-----|---------------------------|------------------|-----------------------|----------------------|
| General<br>(Track I Only) | Specific<br>(Tracks I & III) | B | M | PWD | Harmonic<br>imaging<br>2) | Color<br>Doppler | Combined<br>(Specify) | Amplitude<br>Doppler |
| Ophthalmic | Ophthalmic | | | | | | | |
| | Fetal | | | | | | | |
| | Abdominal 2) | | | | | | | |
| | Intra-operative (Specify) | | | | | | | |
| | Intra-operative (Neuro) | | | | | | | |
| | Laparoscopic | | | | | | | |
| Fetal Imaging<br>& Other | Pediatric | E | E | E | E | E | E 1) | E |
| | Small Organ (Specify) 3) | E | E | E | E | E | E 1) | E |
| | Neonatal Cephalic | | | | | | | |
| | Adult Cephalic | | | | | | | |
| | Trans-rectal | | | | | | | |
| | Trans-vaginal | | | | | | | |
| Trans-urethral | | | | | | | | |
| Trans-esoph. (non-Card.) | | | | | | | | |
| | Musculo-skel.<br>(Conventional) | E | E | E | E | E | E 1) | E |
| | Musculo-skel. (Superficial) | E | E | E | E | E | E 1) | E |
| | Intra-luminal | | | | | | | |
| | Other (Specify) | | | | | | | |
| Cardiac | Cardiac Adult | | | | | | | |
| | Cardiac Pediatric | | | | | | | |
| | Trans-esoph. (Cardiac) | | | | | | | |
| | Other (Specify) | | | | | | | |
| Peripheral<br>Vessel | Peripheral vessel | E | E | E | E | N4) | E 1) | E |
| | Other (Specify) | | | | | | | |
N= new indication; P= previously cleared by FDA; E= added under Appendix E *Examples may include: A-mode. Amplitude Doppler, 3-D Imaging, Harmonic Imaging, Tissue Motion Doppler, Color Velocity Imaging
(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IF NEEDED)
Concurrence of CDRH, Office of In Vitro Diagnostics and Radiological Health (OIR)
# Sean M. Boyd -S
(Division Sign Off) Division of Radiological Health Office of In Vitro Diagnostic and Radiological Health
K123254 510(k)
> Page 2 of 3
{7}------------------------------------------------
## Indications for Use
1) Mode combinations: B+M, B+D, B+C, B+D+C. Additional Comments: (D is PWD, C is Color Flow mapping Doppler including Amplitude (power) Doppler).
2) Includes tissue harmonic imaging.
3) Small part: Breast, testis and penis
4) Vector Flow Imaging
(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IF NEEDED)
Concurrence of CDRH, Office of In Vitro Diagnostics and Radiological Health (OIR)
Sean M. Boyd -S
(Division Sign Off) . Division of Radiological Health Office of In Vitro Diagnostic and Radiological Health
K123254 510(k)_
Page 3 of 3
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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 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).
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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.
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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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. 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.