Ultrasound Imaging System (LK128L); Ultrasound Imaging System (LK128LH); Ultrasound Imaging System (LK128C); Ultrasound Imaging System (LK128M); Ultrasound Imaging System (LK128PA); Ultrasound Imaging System (LK128E); Ultrasound Imaging System (LU700C); Ultrasound Imaging System (LU700L); Ultrasound Imaging System (LU710L); Ultrasound Imaging System (LU710LH); Ultrasound Imaging System (LU710C); Ultrasound Imaging System (LU710M); Ultrasound Imaging System (LU710PA); Ultrasound Imaging
Ultrasound Imaging System (LK128L); Ultrasound Imaging System (LK128LH); Ultrasound Imaging System (LK128C); Ultrasound Imaging System (LK128M); Ultrasound Imaging System (LK128PA); Ultrasound Imaging System (LK128E); Ultrasound Imaging System (LU700C); Ultrasound Imaging System (LU700L); Ultrasound Imaging System (LU710L); Ultrasound Imaging System (LU710LH); Ultrasound Imaging System (LU710C); Ultrasound Imaging System (LU710M); Ultrasound Imaging System (LU710PA); Ultrasound Imaging
Applicant
Leltek, Inc.
Product Code
IYN · Radiology
Decision Date
Sep 11, 2024
Decision
SESE
Submission Type
Special
Regulation
21 CFR 892.1550
Device Class
Class 2
Attributes
Pediatric
Indications for Use
The Ultrasound Imaging System (Model: 128 Series) and (Model: LU700 Series) is a software-based imaging system and accessories intended for use by qualified physicians and healthcare professionals who has the ability to conduct ultrasound scan process for evaluation by ultrasound imaging system or fluid flow analysis of the human body. The modes of operation include B mode, M mode, PWD mode, Color Doppler (CD) mode, Power Doppler mode, and the combined mode (B+M, B+CD, B+PWD) Specific clinical applications and exam types including: LK128C Fetal, General abdominal imaging, Pediatric, Small organ (thyroid, prostate, scrotum, breast), Urology, Musculoskeletal (conventional), OB/Gyn, Cardiac (adult), Cardiac (pediatric).Peripheral vessel .interventional quidance (free hand needle/ catheter).FAST/ EFAST,Nerve LK128L Ophthalmic General abdominal imaging Pediatric, Small organ (thyroid, prostate, scrotum, breast).Neonatal cephalic.Musculoskeletal (conventional).Musculoskeletal (superficial).Peripheral vessel , Other (Carotid), Pulmonary, interventional guidance (free hand needle/ catheter), Nerve LK128LH Ophthalmic General abdominal imaging Pediatric, Small organ (thyroid, prostate, scrotum, breast),Neonatal cephalic,Musculoskeletal (conventional),Musculoskeletal (superficial),Peripheral vessel , Other (Carotid), Pulmonary, interventional guidance (free hand needle/ catheter), Nerve LK128M Fetal General abdominal imaging Pediatric, Small organ (thyroid, prostate, scrotum, breast), Neonatal cephalic,Urology,Musculoskeletal (conventional),OB/Gyn,Cardiac (adult),Cardiac (pediatric),Peripheral vessel interventional guidance (free hand needle/ catheter) LK128PA Fetal, General abdominal imaging, Pediatric, Cardiac (adult), Cardiac (pediatric), Pulmonary, FAST/ EFAST,Nerve LK128E Fetal, General abdominal imaging, Pediatric, Small organ (thyroid, prostate, scrotum, breast), Trans-rectal, Trans-vaginal, Urology, OB/Gyn, interventional guidance (free hand needle/ catheter) LU700L General abdominal imaging Pediatric, Small organ (thyroid, prostate, scrotum, breast).Neonatal cephalic,Musculoskeletal (conventional),Musculoskeletal (superficial),Peripheral vessel ,Other (Carotid),Pulmonary,interventional guidance (free hand needle/ catheter),Nerve LU710L Ophthalmic, General abdominal imaging, Pediatric, Small organ (thyroid, prostate, scrotum, breast),Neonatal cephalic,Musculoskeletal (conventional),Musculoskeletal (superficial),Peripheral vessel , Other (Carotid), Pulmonary, interventional guidance (free hand needle/ catheter), Nerve LU710LH Ophthalmic, General abdominal imaging, Pediatric, Small organ (thyroid, prostate, scrotum, breast),Neonatal cephalic,Musculoskeletal (conventional),Musculoskeletal (superficial),Peripheral vessel . Other (Carotid),Pulmonary.interventional quidance (free hand needle/ catheter),Nerve LU700C General abdominal imaging, Musculoskeletal (conventional), Musculoskeletal (superficial), OB/ Gyn, Peripheral vessel .interventional guidance (free hand needlel catheter),FAST/EFAST,Nerve LU710C Fetal, General abdominal imaging, Pediatric, Small organ (thyroid, prostate, scrotum, breast).Urology.Musculoskeletal (conventional).OB/Gyn.Cardiac (adult).Cardiac (pediatric),Peripheral vessel ,interventional guidance (free hand needle/ catheter),FAST/ EFAST,Nerve LU710M Fetal General abdominal imaging, Pediatric, Small organ (thyroid, prostate, scrotum, breast), Neonatal cephalic.Urology.Musculoskeletal (conventional).OB/Gvn.Cardiac (adult).Cardiac (pediatric),Peripheral vessel ,interventional guidance (free hand needle/ catheter) LU710PA Fetal,General abdominal imaging,Pediatric,Cardiac (adult),Cardiac (pediatric),Pulmonary,FAST/ EFAST.Nerve LU710E Fetal, General abdominal imaging, Pediatric, Small organ (thyroid, prostate, scrotum, breast), Transrectal, Trans-vaginal, Urology, OB/Gyn, interventional guidance (free hand needle/ catheter) The device is intended for use in environments where healthcare is provided by trained healthcare professionals, but not intended for use in emergency medical service, ambulance, or aircraft.
Device Story
Portable, handheld ultrasound system; acquires/displays real-time ultrasound data via COTS mobile device (iOS, Android, Windows). System consists of wireless transducers (Linear, Convex, MicroConvex, Phased, Endocavity) communicating via Wi-Fi to mobile app. Hardware includes built-in battery, multichannel beamformer, prescan converter. User interacts via touch-based UI on mobile device to view images and perform fluid flow analysis. Used by physicians/healthcare professionals in clinical settings for diagnostic imaging and interventional guidance (e.g., needle/catheter placement). Output affects clinical decision-making by providing real-time visualization of internal structures and blood flow. Benefits include portability and ease of image export/display.
Clinical Evidence
No clinical data. Substantial equivalence supported by bench testing, including acoustic output, biocompatibility, cleaning/disinfection effectiveness, and conformance to electrical safety and software lifecycle standards.
Indicated for diagnostic ultrasound imaging and fluid flow analysis in fetal, abdominal, pediatric, small organ, urology, musculoskeletal, OB/Gyn, cardiac, peripheral vessel, ophthalmic, neonatal cephalic, pulmonary, interventional guidance, FAST/EFAST, and nerve applications. Intended for use by qualified healthcare professionals in clinical environments; not for emergency, ambulance, or aircraft use.
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.
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September 11, 2024
Image /page/0/Picture/1 description: The image contains the logo of the U.S. Food and Drug Administration (FDA). On the left, there is a seal with the text "DEPARTMENT OF HEALTH & HUMAN SERVICES-USA" surrounding a graphic. To the right of the seal, there is a blue square with the letters "FDA" in white. Next to the blue square, the text "U.S. FOOD & DRUG ADMINISTRATION" is written in blue.
Leltek Inc. Paul Chang Manager 6F .- 3, No.293, Sec 1, Beixin Rd., Xindian Dist., New Taipei City, 23147 TAIWAN
#### Re: K241161
Trade/Device Name: Ultrasound Imaging System (LK128L); Ultrasound Imaging System (LK128LH); Ultrasound Imaging System (LK128C); Ultrasound Imaging System (LK128M); Ultrasound Imaging System (LK128PA); Ultrasound Imaging System (LK128E); Ultrasound Imaging System (LU700C); Ultrasound Imaging System (LU700L); Ultrasound Imaging System (LU710L); Ultrasound Imaging System (LU710LH); Ultrasound Imaging System (LU710C); Ultrasound Imaging System (LU710M); Ultrasound Imaging System (LU710PA); Ultrasound Imaging System (LU710E) Regulation Number: 21 CFR 892.1550 Regulation Name: Ultrasonic Pulsed Doppler Imaging System Regulatory Class: Class II Product Code: IYN, IYO, ITX Dated: August 12, 2024 Received: August 12, 2024
#### Dear Paul Chang:
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 (the 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. Although this letter refers to your product as a device, please be aware that some cleared products may instead be combination products. The 510(k) Premarket Notification Database available at https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfpmn/pmn.cfm identifies combination product submissions. 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
{1}------------------------------------------------
Federal Regulations, Title 21, Parts 800 to 898. In addition, FDA may publish further announcements concerning your device in the Federal Register.
Additional information about changes that may require a new premarket notification are provided in the FDA guidance documents entitled "Deciding When to Submit a 510(k) for a Change to an Existing Device" (https://www.fda.gov/media/99812/download) and "Deciding When to Submit a 510(k) for a Software Change to an Existing Device" (https://www.fda.gov/media/99785/download).
Your device is also subject to, among other requirements, the Quality System (QS) regulation (21 CFR Part 820), which includes, but is not limited to, 21 CFR 820.30, Design controls; 21 CFR 820.90, Nonconforming product; and 21 CFR 820.100, Corrective and preventive action. Please note that regardless of whether a change requires premarket review, the QS regulation requires device manufacturers to review and approve changes to device design and production (21 CFR 820.30 and 21 CFR 820.70) and document changes and approvals in the device master record (21 CFR 820.181).
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 of medical device-related adverse events) (21 CFR Part 803) for devices or postmarketing safety reporting (21 CFR Part 4, Subpart B) for combination products (see https://www.fda.gov/combination-products/guidance-regulatory-information/postmarketing-safety-reportingcombination-products); good manufacturing practice requirements as set forth in the quality systems (QS) regulation (21 CFR Part 820) for devices or current good manufacturing practices (21 CFR Part 4, Subpart A) for combination products; and, if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR Parts 1000-1050.
All medical devices, including Class I and unclassified devices and combination product device constituent parts are required to be in compliance with the final Unique Device Identification System rule ("UDI Rule"). The UDI Rule requires, among other things, that a device bear a unique device identifier (UDI) on its label and package (21 CFR 801.20(a)) unless an exception or alternative applies (21 CFR 801.20(b)) and that the dates on the device label be formatted in accordance with 21 CFR 801.18. The UDI Rule (21 CFR 830.300(a) and 830.320(b)) also requires that certain information be submitted to the Global Unique Device Identification Database (GUDID) (21 CFR Part 830 Subpart E). For additional information on these requirements, please see the UDI System webpage at https://www.fda.gov/medical-device-advicecomprehensive-regulatory-assistance/unique-device-identification-system-udi-system.
Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR 807.97). For questions regarding the reporting of adverse events under the MDR regulation (21 CFR Part 803), please go to https://www.fda.gov/medical-device-safety/medical-device-reportingmdr-how-report-medical-device-problems.
{2}------------------------------------------------
For comprehensive regulatory information about medical devices and radiation-emitting products, including information about labeling regulations, please see Device Advice (https://www.fda.gov/medicaldevices/device-advice-comprehensive-regulatory-assistance) and CDRH Learn (https://www.fda.gov/training-and-continuing-education/cdrh-learn). Additionally, you may contact the Division of Industry and Consumer Education (DICE) to ask a question about a specific regulatory topic. See the DICE website (https://www.fda.gov/medical-device-advice-comprehensive-regulatoryassistance/contact-us-division-industry-and-consumer-education-dice) for more information or contact DICE by email (DICE@fda.hhs.gov) or phone (1-800-638-2041 or 301-796-7100).
Sincerely,
## Yanna S. Kang -S
Yanna Kang, Ph.D. Assistant Director Mammography and Ultrasound Team DHT8C: Division of Radiological Imaging and Radiation Therapy Devices OHT8: Office of Radiological Health Office of Product Evaluation and Quality Center for Devices and Radiological Health
Enclosure
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## Indications for Use
Submission Number (if known)
| K241161 |
|--------------------------------------|
| Device Name |
| Ultrasound Imaging System (LK128L); |
| Ultrasound Imaging System (LK128LH) |
| Ultrasound Imaging System (LK128C); |
| Ultrasound Imaging System (LK128M); |
| Ultrasound Imaging System (LK128PA); |
| Ultrasound Imaging System (LK128E); |
| Ultrasound Imaging System (LU700C); |
| Ultrasound Imaging System (LU700L); |
| Ultrasound Imaging System (LU710L); |
| Ultrasound Imaging System (LU710LH); |
| Ultrasound Imaging System (LU710C); |
| Ultrasound Imaging System (LU710M); |
| Ultrasound Imaging System (LU710PA); |
| Ultrasound Imaging System (LU710E) |
| Indications for Use (Describe) |
The Ultrasound Imaging System (Model: 128 Series) and (Model: LU700 Series) is a software-based imaging system and accessories intended for use by qualified physicians and healthcare professionals who has the ability to conduct ultrasound scan process for evaluation by ultrasound imaging system or fluid flow analysis of the human body. The modes of operation include B mode, M mode, PWD mode, Color Doppler (CD) mode, Power Doppler mode, and the combined mode (B+M, B+CD, B+PWD) Specific clinical applications and exam types including: LK128C Fetal, General abdominal imaging, Pediatric, Small organ (thyroid, prostate, scrotum, breast), Urology, Musculoskeletal (conventional), OB/Gyn, Cardiac (adult), Cardiac (pediatric).Peripheral vessel .interventional quidance (free hand needle/ catheter).FAST/ EFAST,Nerve LK128L Ophthalmic General abdominal imaging Pediatric, Small organ (thyroid, prostate, scrotum, breast).Neonatal cephalic.Musculoskeletal (conventional).Musculoskeletal (superficial).Peripheral vessel , Other (Carotid), Pulmonary, interventional guidance (free hand needle/ catheter), Nerve LK128LH Ophthalmic General abdominal imaging Pediatric, Small organ (thyroid, prostate, scrotum, breast),Neonatal cephalic,Musculoskeletal (conventional),Musculoskeletal (superficial),Peripheral vessel , Other (Carotid), Pulmonary, interventional guidance (free hand needle/ catheter), Nerve LK128M Fetal General abdominal imaging Pediatric, Small organ (thyroid, prostate, scrotum, breast), Neonatal cephalic,Urology,Musculoskeletal (conventional),OB/Gyn,Cardiac (adult),Cardiac (pediatric),Peripheral vessel interventional guidance (free hand needle/ catheter) LK128PA Fetal, General abdominal imaging, Pediatric, Cardiac (adult), Cardiac (pediatric), Pulmonary, FAST/ EFAST,Nerve LK128E Fetal, General abdominal imaging, Pediatric, Small organ (thyroid, prostate, scrotum, breast), Trans-
rectal, Trans-vaginal, Urology, OB/Gyn, interventional guidance (free hand needle/ catheter) LU700L
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General abdominal imaging Pediatric, Small organ (thyroid, prostate, scrotum, breast).Neonatal cephalic,Musculoskeletal (conventional),Musculoskeletal (superficial),Peripheral vessel ,Other (Carotid),Pulmonary,interventional guidance (free hand needle/ catheter),Nerve LU710L Ophthalmic, General abdominal imaging, Pediatric, Small organ (thyroid, prostate, scrotum, breast),Neonatal cephalic,Musculoskeletal (conventional),Musculoskeletal (superficial),Peripheral
vessel , Other (Carotid), Pulmonary, interventional guidance (free hand needle/ catheter), Nerve LU710LH
Ophthalmic, General abdominal imaging, Pediatric, Small organ (thyroid, prostate, scrotum, breast),Neonatal cephalic,Musculoskeletal (conventional),Musculoskeletal (superficial),Peripheral vessel . Other (Carotid),Pulmonary.interventional quidance (free hand needle/ catheter),Nerve LU700C
General abdominal imaging, Musculoskeletal (conventional), Musculoskeletal (superficial), OB/ Gyn, Peripheral vessel .interventional guidance (free hand needlel catheter),FAST/EFAST,Nerve LU710C
Fetal, General abdominal imaging, Pediatric, Small organ (thyroid, prostate, scrotum,
breast).Urology.Musculoskeletal (conventional).OB/Gyn.Cardiac (adult).Cardiac
(pediatric),Peripheral vessel ,interventional guidance (free hand needle/ catheter),FAST/ EFAST,Nerve
LU710M
Fetal General abdominal imaging, Pediatric, Small organ (thyroid, prostate, scrotum, breast), Neonatal cephalic.Urology.Musculoskeletal (conventional).OB/Gvn.Cardiac (adult).Cardiac
(pediatric),Peripheral vessel ,interventional guidance (free hand needle/ catheter) LU710PA
Fetal,General abdominal imaging,Pediatric,Cardiac (adult),Cardiac (pediatric),Pulmonary,FAST/ EFAST.Nerve
LU710E
Fetal, General abdominal imaging, Pediatric, Small organ (thyroid, prostate, scrotum, breast), Transrectal, Trans-vaginal, Urology, OB/Gyn, interventional guidance (free hand needle/ catheter)
The device is intended for use in environments where healthcare is provided by trained healthcare professionals, but not intended for use in emergency medical service, ambulance, or aircraft.
Type of Use (Select one or both, as applicable)
> Prescription Use (Part 21 CFR 801 Subpart D)
Over-The-Counter Use (21 CFR 801 Subpart C)
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# 510(k) Summary K241161
#### 1. Submitter's Information
Manufacturer: Leltek Inc. Address: 6F.-3, NO.293, SEC 1, BEIXIN RD., XINDIAN DIST., NEW TAIPEI CITY 23147, TAIWAN (R.O.C.) Tel: (886)2-2913-7577 #205 Fax: 886-2-2913-7599 Website: info@Leltek.com Contact: Paul Chang/Manager E-mail: Paul.Chang@leltek.com Name of Device: Ultrasound Imaging System (LK128L); Ultrasound Imaging System (LK128LH) Ultrasound Imaging System (LK128C); Ultrasound Imaging System (LK128M); Ultrasound Imaging System (LK128PA); Ultrasound Imaging System (LK128E); Ultrasound Imaging System (LU700C); Ultrasound Imaging System (LU700L); Ultrasound Imaging System (LU710L); Ultrasound Imaging System (LU710LH); Ultrasound Imaging System (LU710C); Ultrasound Imaging System (LU710M); Ultrasound Imaging System (LU710PA); Ultrasound Imaging System (LU710E)
#### 2. Class Information
| Date: | 2024/09/10 | |
|----------------------|----------------------------------------------|--------------|
| Device Name: | Ultrasound Imaging System | |
| Proprietary Name: | LU700 Series, 128 Series | |
| Common Name: | Diagnostic Ultrasound System and Accessories | |
| Classification: | Class II | |
| Classification Name: | | |
| 21 CRF Section | Classification Name | Product Code |
| 892.1550 | Ultrasonic Pulsed Doppler Imaging System | 90 $ Ι $ YN |
| 892.1560 | Ultrasonic Pulsed Echo Imaging System | 90 IYO |
| 892.1570 | Diagnostic Ultrasound Transducer | 90 ITX |
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#### 3. Substantially Equivalent Devices
| Primary Predicate Device<br>Device Name<br>"Leltek" Ultrasound Imaging System | 510(k) Number<br>K222365 |
|-------------------------------------------------------------------------------|--------------------------|
| Reference Device<br>Device Name<br>Aco Apache Ultrasound System | 510(k) Number<br>K231509 |
#### 4. Reason for Submission
- Add new specific clinical applications: FAST/EFAST, Nerve ●
- Add new transducer: LK128C, LK128L, LK128LH, LK128M, LK128PA, LK128E. ●
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#### 5. Indications for Use
The Ultrasound Imaging System is a software-based imaging system and accessories intended for use by qualified physicians and healthcare professionals who has the ability to conduct ultrasound scan process for evaluation by ultrasound imaging system or fluid flow analysis of the human body. The modes of operation include B mode, M mode, PWD mode, Color Doppler (CD) mode, Power Doppler mode, and the combined mode (B+M, B+CD, B+PWD). Specific clinical applications and exam types including:
LK128C
Fetal,General abdominal imaging,Pediatric,Small organ (thyroid, prostate, scrotum, breast),Urology,Musculoskeletal (conventional),OB/Gyn,Cardiac (adult),Cardiac (pediatric),Peripheral vessel ,interventional guidance (free hand needle/ catheter),FAST/EFAST,Nerve
LK128L
Ophthalmic,General abdominal imaging,Pediatric,Small organ (thyroid, prostate, scrotum, breast),Neonatal cephalic,Musculoskeletal (conventional),Musculoskeletal (superficial),Peripheral vessel ,Other (Carotid),Pulmonary,interventional guidance (free hand needle/ catheter),Nerve
LK128LH
Ophthalmic,General abdominal imaging,Pediatric,Small organ (thyroid, prostate, scrotum, breast),Neonatal cephalic,Musculoskeletal (conventional),Musculoskeletal (superficial),Peripheral vessel ,Other (Carotid),Pulmonary,interventional guidance (free hand needle/ catheter),Nerve
LK128M
Fetal,General abdominal imaging,Pediatric,Small organ (thyroid, prostate, scrotum, breast),Neonatal cephalic,Urology,Musculoskeletal (conventional),OB/Gyn,Cardiac (adult),Cardiac (pediatric),Peripheral vessel ,interventional guidance (free hand needle/ catheter)
LK128PA
Fetal,General abdominal imaging,Pediatric,Cardiac (adult),Cardiac (pediatric), Pulmonary, FAST/EFAST, Nerve
LK128E
Fetal,General abdominal imaging,Pediatric,Small organ (thyroid, prostate, scrotum, breast),Trans-rectal,Trans-vaginal,Urology,OB/Gyn,interventional guidance (free hand needle/ catheter)
LU700L
General abdominal imaging,Pediatric,Small organ (thyroid, prostate, scrotum, breast),Neonatal cephalic,Musculoskeletal (conventional),Musculoskeletal (superficial),Peripheral vessel ,Other (Carotid),Pulmonary,interventional guidance (free hand needle/ catheter),Nerve LU710L
Ophthalmic,General abdominal imaging,Pediatric,Small organ (thyroid, prostate, scrotum, breast),Neonatal cephalic,Musculoskeletal (conventional),Musculoskeletal
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(superficial),Peripheral vessel ,Other (Carotid),Pulmonary,interventional guidance (free hand needle/ catheter),Nerve
LU710LH
Ophthalmic,General abdominal imaging,Pediatric,Small organ (thyroid, prostate, scrotum, breast),Neonatal cephalic,Musculoskeletal (conventional),Musculoskeletal (superficial),Peripheral vessel ,Other (Carotid),Pulmonary,interventional guidance (free hand needle/ catheter),Nerve
LU700C
General abdominal imaging,Musculoskeletal (conventional),Musculoskeletal (superficial),OB/Gyn,Peripheral vessel ,interventional guidance (free hand needle/ catheter),FAST/EFAST,Nerve
LU710C
Fetal,General abdominal imaging,Pediatric,Small organ (thyroid, prostate, scrotum, breast),Urology,Musculoskeletal (conventional),OB/Gyn,Cardiac (adult),Cardiac (pediatric),Peripheral vessel ,interventional guidance (free hand needle/ catheter),FAST/EFAST,Nerve
LU710M
Fetal,General abdominal imaging,Pediatric,Small organ (thyroid, prostate, scrotum, breast),Neonatal cephalic,Urology,Musculoskeletal (conventional),OB/Gyn,Cardiac (adult),Cardiac (pediatric),Peripheral vessel ,interventional guidance (free hand needle/ catheter)
LU710PA
Fetal,General abdominal imaging,Pediatric,Cardiac (adult),Cardiac (pediatric),Pulmonary,FAST/EFAST,Nerve
LU710E
Fetal,General abdominal imaging,Pediatric,Small organ (thyroid, prostate, scrotum, breast),Trans-rectal,Trans-vaginal,Urology,OB/Gyn,interventional guidance (free hand needle/ catheter)
The device is intended for use in environments where healthcare is provided by trained healthcare professionals, but not intended for use in emergency medical service, ambulance, or aircraft.
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#### 6. Device description
The Ultrasound Imaging System is a portable, software controlled, handheld ultrasound system used to acquire and display hi-resolution, real-time ultrasound data through a commercial off-the-shelf (COTS) mobile device..
- I. The imaging system software runs as an app on a mobile device.
- II. The imaging system software can be download to a commercial off-the-shelf (COTS) mobile device and utilizes an icon touch-based user interface.
- III. The imaging system consists of a series of wireless transducers employing Wi-Fi-based technology to communicate with traditional tablet/smartphone devices via direct Wi-Fi. This allows the user to export ultrasound images and display them across a range portable personal device.
Image /page/9/Picture/8 description: The image shows a diagram of a mobile device UI app communicating with a Leltek Ultrasound Imaging System via Wi-Fi. The mobile device is at the top of the image, and the ultrasound imaging system is at the bottom. The Wi-Fi communication is represented by a dashed line and a Wi-Fi symbol in the middle of the image. The text labels identify the different components of the diagram.
- IV. The imaging system houses a built-in battery, multichannel beamformer, prescan converter and Wi-Fi components
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#### 7. Determination of Substantial Equivalence
| Item | Application device | Primary Predicate | Reference Device | Comparison |
|-------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Device name | Ultrasound Imaging System (Model: 128 series) | Ultrasound Imaging System (Model: LU700 series) | Aco Apache Ultrasound System | |
| 510(k) Number | Current Submission | K222365 | K231509 | |
| Intended Use | Diagnostic ultrasound imaging or fluid flow analysis of the human body | Diagnostic ultrasound imaging or fluid flow analysis of the human body | Diagnostic ultrasound imaging or fluid flow analysis | Same |
| Indications for Use | - Ophthalmic<br>- Fetal<br>- Abdominal<br>- Pediatric<br>- Small organ<br>- Neonatal cephalic<br>- Trans-rectal<br>- Trans-vaginal<br>- Musculoskeletal(conventional)<br>- Musculoskeletal (superficial)<br>- Urology<br>- OB/Gyn<br>- Cardiac adult<br>- Cardiac pediatric<br>- Peripheral vessel<br>- Carotid<br>- Pulmonary interventional guidance (includes free hand needle/ catheter)<br>- FAST/EFAST,<br>- Nerve, | - Ophthalmic<br>- Fetal<br>- Abdominal<br>- Pediatric<br>- Small organ<br>- Neonatal cephalic<br>- Trans-rectal<br>- Trans-vaginal<br>- Musculoskeletal(conventional)<br>- Musculoskeletal (superficial)<br>- Urology<br>- OB/Gyn<br>- Cardiac adult<br>- Cardiac pediatric<br>- Peripheral vessel<br>- Carotid<br>- Pulmonary interventional guidance (includes free hand needle/ catheter) | - Ocular<br>- Fetal / Fetal Echo<br>- Abdominal,<br>- Pediatric,<br>- Small Organ (including breast, scrotum, thyroid),<br>- Musculo-skeletal (conventional<br>- Musculo-skeletal (superficial)<br>- Urology,<br>- Obstetric/ Gynecological,<br>- Cephalic (adult),<br>- Peripheral Vessel,<br>- Carotid,<br>- Lung,<br>- Needle Guidance<br>- FAST/EFAST,<br>- Nerve, | Different. 128 series adds more clinical applications. |
| Mode of Operations | - B Mode (Ophthalmic and others) | - B Mode (Ophthalmic and others) | B Mode | Same. |
| | - M mode | - M mode | M mode | |
| | - Pulsed wave Doppler (PWD) | - Pulsed wave Doppler (PWD) | Pulsed wave Doppler (PWD) | |
| USFDA_510(k) | | LELTEK_LU700 &128 Series | 050_510(k) Summary | |
| Item | Application device | Primary Predicate | Reference Device | Comparison |
| Device name | Ultrasound Imaging System (Model:<br>128 series) | Ultrasound Imaging System (Model:<br>LU700 series) | Aco Apache Ultrasound System | - |
| | - Color flow Doppler(CF / CD) | - Color flow Doppler(CF / CD) | Color Doppler(CD) | |
| | - Power Doppler(PD) | - Power Doppler(PD) | Power Doppler(PD) | |
| | - Combined mode (B+M, B+CF,<br>B+PWD) | Combined mode (B+M, B+CF, B+PWD) | Combined mode (B+M, B+CD, B+PWD) | |
| Connect | Wireless communication via IEEE<br>802.11 a/b/g/n | Wireless communication via IEEE<br>802.11 a/b/g/n | Wireless communication via IEEE<br>802.11g/n | Same |
| Transducer<br>Types | Linear (LK128L, LK128LH<br>LU700L, LU710L, LU710LH)<br>Convex array (LK128C,<br>LU700C, LU710C)<br>MicroConvex array (LK128M, LU710M<br>Phased array (LK128PA, LU710PA)<br>Endocavity array (LK128E, LU710E) | Linear (LU700L,LU710L,LU710LH)<br>Convex array (LU700C,LU710C)<br>MicroConvex array (LU710M)<br>Phased array (LU710PA)<br>Endocavity array (LU710E) | Linear array<br>Convex array | More<br>transducers<br>are added to<br>the 128<br>series. |
| Portability | Portable ultrasound system | Portable ultrasound system | Portable ultrasound system | Same |
| Power Source | Rechargeable battery (Li-ion) | Rechargeable battery (Li-ion) | Rechargeable battery (Li-ion) | Same |
| Display or<br>OTC | iOS, Android mobile device or<br>Windows | iOS, Android mobile device or Windows | iOS or Android mobile device | Same |
| 510(k) Track | Track 3 | Track 3 | Track 3 | Same |
| Compliance<br>Standards | - AAMI/ANSI ES60601-1 (2012)<br>- IEC 60601-1-2 (2014) | - AAMI/ANSI ES60601-1 (2012)<br>- IEC 60601-1-2 (2014) | - ANSI/AAMI ES60601-1:2005/(R)2012<br>and A1:2012<br>- ANSI/AAMI IEC 60601-1-2:2014 | Same. |
| USFDA_510(k) | LELTEK_LU700 &128 Series | | | 050_510(k) Summary |
| Item | Application device | Primary Predicate | Reference Device | Comparison |
| Device name | Ultrasound Imaging System (Model: 128 series) | Ultrasound Imaging System (Model: LU700 series) | Aco Apache Ultrasound System | - |
| | - IEC 60601-1-6:2010+AMD1:2013+AMD2:2020<br>- IEC60601-1-12 Edition 1.1 2020-07<br>- IEC 60601-2-37 (2015)<br>- AIUM/NEMA UD 2- 2004 R2009<br>- AIUM/NEMA UD 3- 2004 R2009<br>- IEC 62133-2:2017+ AMD1:2021 IEC 62366 (2014)<br>- ISO 10993-1:2018<br>- ISO 10993-5(2009)<br>- ISO 10993-10:2021<br>- ISO 10993-23(2021)<br>- IEC 62304:2006+ AMD1:2015<br>- ISO 15223-1 Fourth edition 2021-07<br>- ISO 14971 (2019)<br>- ISO 13485 (2016) | - IEC 60601-1-6 (2013)<br>- IEC 60601-2-37 (2015)<br>- AIUM/NEMA UD 2- 2004 R2009<br>- AIUM/NEMA UD 3- 2004 R2009<br>- IEC 62133 (2012)<br>- IEC 62366 (2014)<br>- ISO 10993-1:2018<br>- ISO 10993-5(2009)<br>- ISO 10993-10(2010)<br>- IEC 62304 (2006)<br>- ISO 15223-1 (2016)<br>- ISO 14971 (2012)<br>- ISO 13485 (2016) | - IEC 60601-1-6:2010+AMD1:2013+AMD2:2020<br>- IEC 60601-2-37:2007+ AMD1:2015<br>- AIUM/NEMA UD 2- 2004 R2009<br>- ISO 10993-1:2018<br>- ISO 62304<br>- ISO 15223-1<br>- ISO 14971 | As compared to the predicate, the 128 series comply with the safety and performance tests, which meets all the essential requirement for its intended use. |
{11}------------------------------------------------
{12}------------------------------------------------
This device is a modification of an existing cleared device (K22365) using technologies that exist on the date of this submission. The Lettek Ultrasound Imaging System (Model: 128 series) meets for Track 3 devices, have biosafety equivalence, and conform to applicable electromedical devices safety standards. The differences specified above have no pragmatic detriments. All the device meet the essential requirements. Therefore, the system is substantially equivalent to the primary predicate device.
{13}------------------------------------------------
#### 8. Performance standards
The Ultrasound Imaging System has been designed, manufactured, tested, and certified to comply with the following internationally recognized standards:
| Date of Entry | Recognition Number | Standard Developing Organization | Standard Designation Number/Date | Title of Standard |
|---------------|--------------------|----------------------------------|------------------------------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| 05/30/2022 | 19-46 | ANSI AAMI | ES60601-1:2005/(R)2012 &<br>A1:2012 C1:2009/(R)2012<br>& A2:2010/(R)2012 (Cons.<br>Text) [Incl. AMD2:2021] | Medical electrical equipment - Part 1:<br>General requirements for basic safety and<br>essential performance (IEC 60601-1:2005<br>MOD) [Including Amendment 2 (2021)] |
| 12/21/2020 | 19-36 | ANSI AAMI IEC | 60601-1-2:2014 [Including<br>AMD 1:2021] | Medical electrical equipment - Part 1-2:<br>General requirements for basic safety and<br>essential performance - Collateral Standard:<br>Electromagnetic disturbances - Requirements<br>and tests [Including Amendment 1 (2021)] |
| 12/21/2020 | 5-132 | IEC | 60601-1-6 Edition 3.2 2020-<br>07 CONSOLIDATED<br>VERSION | Medical electrical equipment - Part 1-6:<br>General requirements for basic safety and<br>essential performance - Collateral standard:<br>Usability |
| 12/21/2020 | 19-38 | IEC | 60601-1-11 Edition 2.1<br>2020-07 CONSOLIDATED<br>VERSION | Medical electrical equipment - Part 1-11:<br>General requirements for basic safety and<br>essential performance - Collateral Standard:<br>Requirements for medical electrical<br>equipment and medical electrical systems<br>used in the home healthcare environment |
| 06/27/2016 | 12-293 | IEC | 60601-2-37 Edition 2.1<br>2015 | Medical electrical equipment - Part 2-37:<br>Particular requirements for the basic safety<br>and essential performance of ultrasonic<br>medical diagnostic and monitoring<br>equipment |
| 12/23/2019 | 19-33 | IEC | 62133-2 Edition1.0 2017-02 | Secondary cells and batteries containing<br>alkaline or other non-acid electrolytes -<br>Safety requirements for portable sealed<br>secondary cells and for batteries made from<br>them for use in portable applications - Part 2<br>Lithium systems |
| 01/14/2019 | 13-79 | ANSI AAMI IEC | 62304:2006/A1:2016 | Medical device software - Software life cycle<br>processes [Including Amendment 1 (2016)] |
| 07/06/2020 | 5-129 | ANSI AAMI IEC | 62366-1:2015+AMD1:2020<br>(Consolidated Text) | Medical devices Part 1: Application of<br>usability engineering to medical devices<br>including Amendment 1 |
| 01/14/2019 | 2-258 | ISO | 10993-1 Fifth edition 2018-<br>08 | Biological evaluation of medical devices -<br>Part 1: Evaluation and testing within a risk<br>management process |
| 12/23/2016 | 2-245 | ISO | 10993-5 Third edition<br>2009-06-01 | Biological evaluation of medical devices -<br>Part 5: Tests for in vitro cytotoxicity |
| 12/19/2022 | 2-296 | ISO | 10993-10 Fourth edition<br>2021-11 | Biological evaluation of medical devices -<br>Part 10: Tests for skin sensitization |
| 06/07/2021 | 2-291 | ISO | 10993-23 First edition<br>2021-01 | Biological evaluation of medical devices -<br>Part 23: Tests for irritation |
| 12/20/2021 | 5-134 | ISO | 15223-1 Fourth edition<br>2021-07 | Medical devices - Symbols to be used with<br>information to be supplied by the<br>manufacturer - Part 1: General requirements |
| 12/23/2019 | 5-125 | ISO | 14971 Third Edition 2019-<br>12 | Medical devices - Application of risk<br>management to medical devices |
{14}------------------------------------------------
#### 9. General Safety and Effectiveness
This device is the addition of new transducer models to the Leltek Ultrasound Imaging System, using technologies existing on the market as of the date of this submission. The Leltek Ultrasound Imaging System (Model: 128 Series) and (Model: LU700 Series) meets FDA requirements for Track 3 devices, have biosafety equivalence, and conform to applicable electromedical devices safety standards.
The new models which are tested and determined to be in full compliance with acoustic output, biocompatibility, cleaning, and disinfection effectiveness, and have no pragmatic detriments. No additional clinical testing is required. The maximum acoustic output level is under the FDA recommended limit, and the power level is displayed all the time. All the safety and performance tests of the device meet the essential requirements. Therefore, the system is substantially equivalent to the primary predicate device.
#### 10. Conclusion
With increased clinical experience and imaging, additional clinical applications such as FAST/EFAST and Nerve diagnosis have been identified by clinics, which can be added to the existing legally marketed LU700 series device (K222365). Furthermore, the Leltek Ultrasound Imaging System (Model: 128 series) utilizes the same software and hardware architecture and transducer specifications as the LU700 series but replaces the cover material with plastic and features a smaller PCBA with same block diagram.
Pre-clinical test outcomes provide evidence that both the LU700 series and 128 series models meet FDA requirements for Track 3 devices, exhibit biosafety equivalence, and conform to applicable electromedical device safety standards. The specified differences have no pragmatic detriments. All safety and performance tests of the device meet essential requirements. Therefore, the system is considered substantially equivalent to the primary predicate device
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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.