V8 Diagnostic Ultrasound System; cV8 Diagnostic Ultrasound System; V7 Diagnostic Ultrasound System; cV7 Diagnostic Ultrasound System; V6 Diagnostic Ultrasound System; cV6 Diagnostic Ultrasound System

K243702 · Samsung Medison Co., Ltd. · IYN · Feb 12, 2025 · Radiology

Device Facts

• Record ID: K243702
• Device Name: V8 Diagnostic Ultrasound System; cV8 Diagnostic Ultrasound System; V7 Diagnostic Ultrasound System; cV7 Diagnostic Ultrasound System; V6 Diagnostic Ultrasound System; cV6 Diagnostic Ultrasound System
• Applicant: Samsung Medison Co., Ltd.
• Product Code: IYN · Radiology
• Decision Date: Feb 12, 2025
• Decision: SESE
• Submission Type: Traditional
• Regulation: 21 CFR 892.1550
• Device Class: Class 2
• Attributes: AI/ML, Pediatric

Intended Use

The diagnostic ultrasound system and probes are designed to obtain ultrasound images and analyze body fluids. The clinical applications include: Fetal/Obstetrics, Abdominal, Gynecology, Intra-operative, Pediatric, Small Organ, Neonatal Cephalic, Adult Cephalic, Trans-rectal, Trans-vaginal, Muscular-Skeletal (Conventional, Superficial), Urology, Cardiac Adult, Cardiac Pediatric, Thoracic, Trans-esophageal (Cardiac) and Peripheral vessel. It is intended for use by, or by the order of, and under the supervision of, an appropriately trained healthcare professional who is qualified for direct use of medical devices. It can be used in hospitals, private practices, clinics and similar care environment for clinical diagnosis of patients. Modes of Operation: 2D mode, Color Doppler mode, Power Doppler (PD) mode, M mode, Pulsed Wave (PW) Doppler mode, Continuous Wave (CW) Doppler mode, Tissue Doppler Imaging (TDI) mode, Tissue Doppler Wave (TDW) mode, ElastoScan Mode, Combined modes, Multi-Image mode(Dual, Quad), 3D/4D mode.

Device Story

Mobile, software-controlled diagnostic ultrasound system; acquires ultrasound data via probes; displays images in various modes (2D, Doppler, M-mode, 3D/4D, etc.). Used by trained healthcare professionals in hospitals/clinics for clinical diagnosis. Features include measurement packages, real-time acoustic output display (mechanical/thermal indices), and AI-based analysis tools (e.g., NerveTrack/EzNerveMeasure). RFA Viewer displays real-time ablation data from external generators. Updated Strain+ and AutoEF functions provide expanded cardiac measurements. Output assists clinicians in anatomical measurement and diagnosis; benefits include improved diagnostic visualization and workflow efficiency.

Clinical Evidence

Bench testing only. No clinical studies required. Evaluated for acoustic output, biocompatibility, software function, cleaning/disinfection, and thermal/electrical/mechanical safety per FDA-recognized standards (IEC 60601 series, ISO 10993-1, ISO 14971, NEMA UD 2). AI-based 'EzNerveMeasure' validated using 100 static median nerve images from 10 patients; average error rate for flattening ratio (FR) was 8.31% and cross-sectional area (CSA) was 13.12%.

Technological Characteristics

Mobile diagnostic ultrasound system; software-controlled. Includes 2D, Doppler, M-mode, 3D/4D imaging. Complies with IEC 60601-1, IEC 60601-1-2, IEC 60601-2-37, ISO 10993-1, ISO 14971, NEMA UD 2. Features AI-based segmentation (NerveTrack), RFA Viewer, and cardiac analysis (Strain+, AutoEF). New BCL2-14 transducer added. Real-time acoustic output display (MI/TI).

Indications for Use

Indicated for diagnostic ultrasound imaging and fluid flow analysis in patients requiring fetal/obstetrics, abdominal, gynecological, intraoperative, pediatric, small organ, neonatal/adult cephalic, trans-rectal/vaginal, musculoskeletal, urological, cardiac, thoracic, and peripheral vessel examinations. Intended for use by trained healthcare professionals in clinical settings.

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

• V8/XV8/XH8, V7/XV7/XH7, V6/XV6/XH6 Diagnostic Ultrasound System (K240631)

Reference Devices

• RS85 Diagnostic Ultrasound System (K240516)

Submission Summary (Full Text)

{0}------------------------------------------------

February 12, 2025

Image /page/0/Picture/1 description: The image shows the logo of the U.S. Food and Drug Administration (FDA). On the left is the Department of Health & Human Services logo. To the right of that is the FDA logo, which consists of a blue square with the letters "FDA" in white, followed by the words "U.S. FOOD & DRUG" in blue, and the word "ADMINISTRATION" in a smaller font size below that. The logo is simple and professional, and it is easily recognizable.

Samsung Medison Co., Ltd. Yujin Kim Regulatory Affairs Specialist 3366. Hanseo-ro. Nam-myeon Hongcheon-gun, Gangwon-do 25108 REPUBLIC OF KOREA

Re: K243702

Trade/Device Name: V8 Diagnostic Ultrasound System: cV8 Diagnostic Ultrasound System: V7 Diagnostic Ultrasound System; cV7 Diagnostic Ultrasound System; V6 Diagnostic Ultrasound System; cV6 Diagnostic Ultrasound System Regulation Number: 21 CFR 892.1550 Regulation Name: Ultrasonic Pulsed Doppler Imaging System Regulatory Class: Class II Product Code: IYN, IYO, ITX, LLZ, QIH Dated: November 29, 2024 Received: November 29, 2024

Dear Yujin Kim:

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 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"

{1}------------------------------------------------

(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 OS 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 Rue"). 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 (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 ([e-mail]) or phone [phone] or 301-796-7100).

Sincerely,

# Marjan Nabili -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

{3}------------------------------------------------

## Indications for Use

Submission Number (if known)

K243702

Device Name

V8 Diagnostic Ultrasound System; cV8 Diagnostic Ultrasound System; V7 Diagnostic Ultrasound System; cV7 Diagnostic Ultrasound System; V6 Diagnostic Ultrasound System; cV6 Diagnostic Ultrasound System

Indications for Use (Describe)

The diagnostic ultrasound system and probes are designed to obtain ultrasound images and analyze body fluids. The clinical applications include: Fetal/Obstetrics, Abdominal, Gynecology, Intraoperative. Pediatric, Small Organ, Neonatal Cephalic, Trans-rectal, Trans-rectal, Trans-vaginal, Muscular-Skeletal (Conventional, Superficial), Urology, Cardiac Adult, Cardiac Pediatric, Thoracic, Trans-esophageal (Cardiac) and Peripheral vessel. It is intended for use by, or by the order of, and under the supervision of, an appropriately trained healthcare professional who is qualified for direct use of medical devices. It can be used in hospitals, private practices, clinics and similar care environment for clinical diagnosis of patients. Modes of Operation: 2D mode. Color Doppler mode, Power Doppler (PD) mode, M mode, Pulsed Wave (PW) Doppler mode, Continuous Wave (CW) Doppler mode. Tissue Doppler Imaging (TDI) mode. Tissue Doppler Wave (TDW) mode, ElastoScan Mode, Combined modes, Multi-Image mode(Dual, Quad), 3D/4D mode.

Type of Use (Select one or both, as applicable)

X Prescription Use (Part 21 CFR 801 Subpart D)

Over-The-Counter Use (21 CFR 801 Subpart C)

#### CONTINUE ON A SEPARATE PAGE IF NEEDED.

This section applies only to requirements of the Paperwork Reduction Act of 1995.

#### *DO NOT SEND YOUR COMPLETED FORM TO THE PRA STAFF EMAIL ADDRESS BELOW.*

The burden time for this collection of information is estimated to average 79 hours per response, including the time to review instructions, search existing data sources, gather and maintain the data needed and complete and review the collection of information. Send comments regarding this burden estimate or any other aspect of this information collection, including suggestions for reducing this burden, to:

> Department of Health and Human Services Food and Drug Administration Office of Chief Information Officer Paperwork Reduction Act (PRA) Staff [e-mail]

"An agency may not conduct or sponsor, and a person is not required to respond to, a collection of information unless it displays a currently valid OMB number."

{4}------------------------------------------------

#### K243702

### 510(K) Summary:

In accordance with 21 CFR 807.92, the following summary of information is provided:

- Date Prepared November 29th, 2024 1.
- 2. Manufacturer SAMSUNG MEDISON CO., LTD. 3366, Hanseo-ro, Nam-myeon, Hongcheon-gun, Gangwon-do 25108, Republic of Korea
- 3. Primary Contact Person Yujin Kim Regulatory Affairs Specialist Phone: [phone] Fax: [phone] Email: yujin714.kim(@samsung.com
- Secondary Contact Person 4. Ninad Gujar Vice President Phone: [phone] Fax: [phone] Email: [e-mail]
- 5. Proposed Device
- Common/Usual Name : Diagnostic Ultrasound System and Accessories -
- -Proprietary Name : V8 Diagnostic Ultrasound System
- cV8 Diagnostic Ultrasound System
- V7 Diagnostic Ultrasound System
- cV7 Diagnostic Ultrasound System
- V6 Diagnostic Ultrasound System
- cV6 Diagnostic Ultrasound System
- Regulation Name : Ultrasonic pulsed doppler imaging system -
- Regulatory Class : Class II -
- -Product Code : IYN, IYO, ITX, LLZ, OIH
- Regulation Number : 21 CFR 892.1550, 892.1560, 892.1570, 892.2050 -
- Predicate Devices 6.
- V8/XV8/XH8, V7/XV7/XH7, V6/XV6/XH6 Diagnostic Ultrasound System (K240631) --Primary
- RS85 Diagnostic Ultrasound System (K240516) Reference -
- 7. Device Description

The V8/cV8, V7/cV7, V6/cV6 are a general purpose, mobile, software controlled, diagnostic ultrasound system. Their function is to acquire ultrasound data and to display the data as 2D mode, Color Doppler mode, Power Doppler (PD) mode, M mode, Pulsed Wave (PW) Doppler mode, Continuous Wave (CW) Doppler mode, Tissue Doppler Imaging (TDI) mode,

{5}------------------------------------------------

Tissue Doppler Wave (TDW) mode, ElastoScan Mode, Combined modes, Multi-Image mode(Dual, Quad), 3D/4D mode. The V8/cV8, V7/cV7, V6/cV6 also give the operator the ability to measure anatomical structures and offer analysis packages that provide information that is used to make a diagnosis by competent health care professionals. The V8/cV8, V7/cV7, V6/cV6 have a real time acoustic output display with two basic indices, a mechanical index and a thermal index, which are both automatically displayed.

- 8. Intended Use
The diagnostic ultrasound system and probes are designed to obtain ultrasound images and analyze body fluids.

The clinical applications include: Fetal/Obstetrics, Abdominal, Gynecology, Intra-operative, Pediatric, Small Organ, Neonatal Cephalic, Adult Cephalic, Trans-rectal, Trans-vaginal, Muscular-Skeletal (Conventional, Superficial), Urology, Cardiac Adult, Cardiac Pediatric, Thoracic, Trans-esophageal (Cardiac) and Peripheral vessel.

It is intended for use by, or by the order of, and under the supervision of, an appropriately trained healthcare professional who is qualified for direct use of medical devices. It can be used in hospitals, private practices, clinics and similar care environment for clinical diagnosis of patients.

Modes of Operation: 2D mode, Color Doppler mode, Power Doppler (PD) mode, M mode, Pulsed Wave (PW) Doppler mode, Continuous Wave (CW) Doppler mode, Tissue Doppler Imaging (TDI) mode, Tissue Doppler Wave (TDW) mode, ElastoScan Mode, Combined modes, Multi-Image mode(Dual, Quad), 3D/4D mode.

- 9. Technological Comparison to Predicate Devices
The V8/cV8, V7/cV7, V6/cV6 employ the same fundamental scientific technology as its predicate devices V8/XV8/XH8, V7/XV7/XH7, V6/XV6/XH6 (K240631) and RS85 (K240516).

- 10. Determination of Substantial Equivalence
Comparison to Predicate: The V8/cV8. V7/cV7, V6/cV6 are substantially equivalent to the predicate devices with regard to intended use, imaging capabilities, technological characteristics and safety and effectiveness.

- The systems are all intended for diagnostic ultrasound imaging and fluid flow . analysis.
- The proposed V8/cV8, V7/cV7, V6/cV6 and the primary predicate V8/XV8/XH8, ● V7/XV7/XH7, V6/XV6/XH6 (K240631) have the same intended use.
- The proposed V8/cV8, V7/cV7, V6/cV6 and the primary predicate V8/XV8/XH8, V7/XV7/XH7, V6/XV6/XH6 (K240631) have the same imaging modes and modes of operation.
- . The proposed V8/cV8, V7/cV7, V6/cV6 have included 'EzNerveMeasure' previously cleared in the predicate RS85 (K240516), as a sub-function of NerveTrack based on AI technology.
- The proposed V8/cV8, V7/cV7, V6/cV6 have included 'RFA Viewer'. This .

{6}------------------------------------------------

function displays information in real-time, such as total ablation time and total energy, generated by the RFA Generator.

- The proposed V8/cV8, V7/cV7, V6/cV6 have updated 'Strain+', a cleared function . in the primary predicate V8/XV8/XH8, V7/XV7/XH7, V6/XV6/XH6 (K240631). It has expanded 'left atrium(LA), and right ventricle(RV)' measurement items.
- . The proposed V8/cV8, V7/cV7, V6/cV6 have updated 'AutoEF', a cleared function in the primary predicate V8/XV8/XH8, V7/XV7/XH7, V6/XV6/XH6 (K240631). It has expanded a 'Global Longitudinal Strain(GLS)' measurement item.
- . The proposed V8/cV8, V7/cV7, V6/cV6 have included a new transducer BCL2-14. Biocompatibility test has been conducted for the new transducer, and image performance test has been conducted for the new transducer.
- . The proposed V8/cV8, V7/cV7, V6/cV6 and the primary predicate V8/XV8/XH8, V7/XV7/XH7, V6/XV6/XH6 (K240631) have the same capability in terms of performing measurements, capturing digital images, reviewing and reporting studies.
- . The proposed V8/cV8, V7/cV7, V6/cV6 and the primary predicate V8/XV8/XH8, V7/XV7/XH7. V6/XV6/XH6 (K240631) have been designed in compliance with approved electrical and physical safety standards.
- . The system is manufactured with materials which have been evaluated and found to be safe for the intended use of the device.
- . The system has acoustic power levels which are below the applicable FDA limits.
- 11. Summary of Non-Clinical Testing

The device has been evaluated for acoustic output, biocompatibility, software function, cleaning and disinfection effectiveness as well as thermal, electrical, electromagnetic and mechanical safety, and has been found to conform with applicable FDA guidances and medical device safety standards. The V8/cV8, V7/cV7, V6/cV6 and its applications comply with the following FDA-recognized standards.

| Reference No. | Title |
|----------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| IEC 60601-1 | AAMI ANSI ES60601-1:2005/(R)2012 & A1:2012 C1:2009/(R)2012 &<br>A2:2010/(R)2012 (Cons. Text) [Incl. AMD2:2021] Medical electrical<br>equipment - Part 1: General requirements for basic safety and essential<br>performance (IEC 60601-1:2005, MOD) |
| IEC 60601-1-2 | IEC60601-1-2:2014 [Including AMD 1:2021] , Medical electrical<br>equipment - Part 1-2: General requirements for basic safety and essential<br>performance - EMC |
| IEC 60601-2-37 | IEC 60601-2-37 Edition 2.1 2015, Medical electrical equipment – Part 2-<br>37: Particular requirements for the basic safety and essential performance<br>of ultrasonic medical diagnostic and monitoring equipment |
| IEC 60601-4-2 | IEC TR 60601-4-2 Edition 1.0 2016-05, Medical electrical equipment - |

{7}------------------------------------------------

| | Part 4-2: Guidance and interpretation - Electromagnetic immunity: |
|----------------|---------------------------------------------------------------------------|
| | performance of medical electrical equipment and medical electrical |
| | systems |
| ISO10993-1 | AAMI / ANSI / ISO 10993-1:2018, Biological evaluation of medical |
| | devices - Part 1: Evaluation and testing within a risk management process |
| ISO14971 | ISO 14971:2019, Medical devices - Application of risk management to |
| | medical devices |
| NEMA UD 2-2004 | NEMA UD 2-2004 (R2009) Acoustic Output Measurement Standard for |
| | Diagnostic Ultrasound Equipment Revision 3 |

All software tests met the acceptance criteria for verification and validation testing.

[The validation for EzNerveMeasure of NerveTrack based on AI]

- Summary test statistics or other test results including acceptance criteria or other information supporting the appropriateness of the characterized performance. We tested on the flattening ratio (FR) and cross-sectional area (CSA) of NerveTrack EzNerveMeasure.
- | | A deep learning-based segmentation algorithm was validated using 100 median nerve images collected at a hospital.
- □ FR and CSA measure test

· The average error rate of FR was 8.31% (95% Confidence Interval: [7.29, 9.34]), and the average error rate of CSA was 13.12% (95% Confidence Interval: [10.90, 15.34]). The standard deviation error rate of FR was 5.22, and the standard deviation error rate of CSA was 11.33. Error Rate (%) is calculated as follows: (GT Value -Measured Value) / GT Value x 100.

- The number of individual patients, images were collected from:
- | | A total of 10 cases acquired from ten individual patients at Seoul National University were used.
- | | Ten static images from each case are randomly selected and used for the validation dataset.
- The number of samples, if different from above, and the relationship between the two:
- [] Each individual contributed at ten static images. In other words, the ten static images from a 2D sequence data acquired from an individual were used for validation.
- □ Validation dataset includes a total of 100 static images.
- Demographic distribution:
- □ Gender: Female

{8}------------------------------------------------

- □ Age: 38-68 (mean: 45.8)
- □ BMI: 16.0-27.1 (mean: 20.53)
- □ Ethnicity/Country: Koreans
- Information about clinical subgroups and confounders present in the dataset:
- □ We divided the nerve ultrasound images, depending on clinical need, into median nerves for wrist.
- Information about equipment and protocols used to collect images
- □ We acquired the dataset with SAMSUNG MEDISON's ultrasound systems in order to secure diversity of the data set: Mix of data from retrospective data collection and prospective data collection in clinical practice.
- Information about how the reference standard was derived from the dataset (i.e. the "Truthing" process):
- □ The GT data were built by three participating experts. Nerve areas in all acquired images for training, tuning and validation were manually drawn by an anesthesiologist with more than 10 years of experience in pain management. The doctors who scanned the ultrasound were directly involved for the construction of GT data. Drawn GT rectangles covered the nerve region perfectly.
- | | For verification of GT, other doctors with more than 10 years of experience checked every frame of each scanned sequences. If they did not agree on median nerve locations, necessary corrections were made to make the final GT.
- Description of how the independence of test data from training data was ensured:
- [ ] Data used for training, tuning and validation purpose are completely separated from the ones during training process, and there is no overlap among the three.

#### 12. Summary of Clinical Tests

The proposed device V8/cV8, V7/cV7, V6/cV6 Ultrasound System did not require clinical studies to demonstrate substantial equivalence.

- 13. Conclusion
Since the predicate devices and the subject device have a similar intended use and key technological features, the non-clinical data support the safety of the device and demonstrate that the V8/cV8, V7/cV7, V6/cV6 Ultrasound System should perform as intended in the specified use conditions. Therefore, SAMSUNG MEDISON CO., LTD. considers the subject device to be as safe, as effective, and performance is substantially equivalent to the primary predicate device that is currently marketed for the same intended use.

- i END of 510(k) Summary -