SRF618B5 Fetal Monitor detects and displays single or twin (optional) Fetal Heart Rate (FHR), Fetal Movement (FM) and Uterine Activity (UA) in a real time on the color LCD viewer, and also provides the fetal heart beat sound with internal speaker. Ten hours of tracing may be stored and later retrieved for printing. It is intended for antepartum use by trained healthcare personnel. It is not intended for home use.

Diagnostic ultrasound imaging or fluid flow analysis of the human body for antepartum use as follows: Fetal / Obstetrics, Mode of Operation: PWD (N)

Device Description

SRF618B5 is a fetal monitor, providing continuous monitoring, displaying, printing and recording of single or twin (optional) Fetal Heart Rate (FHR), Fetal Movement (FM) and Uterine Activity (UA) for antepartum testing and monitoring. SRF618B5 irradiates the ultrasound wave to maternal abdomen, and detects the Doppler effect signal reflected from the heart of the fetus. SRF618B5 extracts FHR and FM from this signal and provides the fetal heart beat sound with internal speaker.

SRF618B5 measures the UA of a pregnant woman using TOCO sensor. SRF618B5 displays FHR, UA and FM with waveforms and numbers on the color LCD screen, saves them in internal flash memory and prints parts of them to review in details.

AI/ML Overview

The provided document is a 510(k) summary for the Sunray Medical Apparatus Co., Ltd. Fetal Monitor, model SRF618B5. This type of submission focuses on demonstrating substantial equivalence to a legally marketed predicate device rather than presenting a clinical study to prove the device meets specific acceptance criteria in the way a novel medical device might.

Therefore, the document does not contain information about a study designed to prove the device meets specific performance acceptance criteria in terms of accuracy or efficacy against a defined ground truth. Instead, it relies on demonstrating compliance with safety standards and similarity to predicate devices.

Here's an analysis based on the information available:

1. A table of acceptance criteria and the reported device performance

No explicit acceptance criteria for performance (e.g., accuracy, sensitivity, specificity) and corresponding device performance results are provided within this 510(k) summary. The summary focuses on compliance with established safety standards and comparison to predicate devices, rather than a clinical performance study.

Acceptance Criteria (Performance)	Reported Device Performance
Not specified in document	Not specified in document

The document mentions that the device has been evaluated for safety and performance by lab bench testing according to various standards (IEC 60601-1, IEC 60601-2-37, IEC 60601-1-2, ISO 10993-1, ISO 10993-5, ISO 10993-10). These standards cover general safety, essential performance of ultrasonic medical diagnostic and monitoring equipment, electromagnetic compatibility, and biological evaluation (biocompatibility). The "reported device performance" in this context refers to compliance with these standards, not a specific clinical performance metric against a gold standard.

2. Sample size used for the test set and the data provenance (e.g. country of origin of the data, retrospective or prospective)

Not applicable. The document does not describe a clinical study with a test set of patient data to evaluate performance against ground truth. The evaluation was primarily through lab bench testing against engineering standards.

3. Number of experts used to establish the ground truth for the test set and the qualifications of those experts (e.g. radiologist with 10 years of experience)

Not applicable. As no clinical study with a test set is described, there's no mention of experts establishing ground truth.

4. Adjudication method (e.g. 2+1, 3+1, none) for the test set

Not applicable. No clinical study with a test set requiring expert adjudication is described.

5. If a multi reader multi case (MRMC) comparative effectiveness study was done, If so, what was the effect size of how much human readers improve with AI vs without AI assistance

Not applicable. This device is a Fetal Monitor, not an AI-powered diagnostic imaging device that would typically undergo an MRMC study. The document does not mention any AI component or human reader assistance.

6. If a standalone (i.e. algorithm only without human-in-the-loop performance) was done

Not applicable. This device is a Fetal Monitor that provides real-time monitoring. Its performance is inherent in its ability to detect and display FHR, FM, and UA, not in an independent algorithm's performance on a dataset. The evaluation cited is lab bench testing.

7. The type of ground truth used (expert concensus, pathology, outcomes data, etc)

For the lab bench testing, the "ground truth" would be the specifications and requirements defined in the international standards (e.g., accuracy of FHR measurement within a certain range as tested with a simulator, electromagnetic compatibility within limits). It's not clinical "ground truth" like pathology or expert consensus on patient data.

8. The sample size for the training set

Not applicable. This device is a Fetal Monitor, not a machine learning or AI-based device that would require a training set.

9. How the ground truth for the training set was established

Not applicable. As there's no training set, there's no ground truth establishment for it.

Summary of what the document does indicate about acceptance criteria:

The acceptance criteria for this device appear to be primarily based on:

Compliance with recognized international standards: IEC 60601-1, IEC 60601-2-37, IEC 60601-1-2, ISO 10993 (various parts). These standards cover electrical safety, essential performance, electromagnetic compatibility, and biocompatibility.
Substantial Equivalence: The primary "study" proving the device "meets the acceptance criteria" in the context of a 510(k) is the demonstration of substantial equivalence to predicate devices (Bionet FC-700 and FC-1400) without raising new questions of safety or effectiveness. The manufacturer states that "the subject device is very similar in design principle, intended use, indication for use, functions, material and the applicable standards" to the predicate devices. The differences are noted as not affecting safety or effectiveness.

Summary

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Sunray Medical Apparatus Co., Ltd. Sponsor: Fetal Monitor, model: SRF618B5 Subject Device: 510(k) submission report (V1.0), Chapter 4 File No.:

MAR 2 1 2013

Chapter 4. 510(k) Summary

510(k) Summary

This summary of 510(k) safety and effectiveness information is being submitted in accordance with the requirements of SMDA and 21 CFR 807.92.

1. Submitter Information

Sponsor Name: Sunray Medical Apparatus Co., Ltd. Address: 4/F No. 242 Tianhe Dong Road, Guangzhou, PR China Contact Person: Rong Jingbo (R&D Director) Tel: +86-20-87570362 / 87502927 Fax: +86-20-87583004 / 87514127 Email: rongjb@sunray.cn

Application Correspondent Information:

MEDLAB (Shenzhen) Information Service Co., Ltd. Address: Rm. 2706-Building A, Zhongfang Jingyuan, Futian District, Shenzhen, PR China, 518034 Contact Person: Ms. Sabrina Wei (Manager) Tel: +86-755-83089699 Fax: +86-755-83089760 Email: sabrinawei@hotmail.com

2. Subject Device Information

Type of 510(k) submission:	Traditional
Common Name:	Fetal Monitor
Trade Name:	Fetal Monitor, model: SRF618B5
Classification Name:	Perinatal monitoring system and accessories
Review Panel:	Obstetrical and Gynecological
Product Code:	HGM, HGL
Regulation Number:	884.2740
Regulation Class:	2

3. Predicate Device Information

Report by Sunray Medical Apparatus Co., Ltd.

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Sponsor:	Sunray Medical Apparatus Co., Ltd.
Subject Device:	Fetal Monitor, model: SRF618B5
File No.:	510(k) submission report (V1.0), Chapter 4
Sponsor:	Bionet Co., Ltd.	Bionet Co., Ltd.
Device Name:	FC-700	FC-1400
510(k) Number:	K043597	K043598
Product Code:	HGM	HGM
Regulation Number:	884.2740	884.2740
Regulation Class:	2	2

4. Device Description

5. Intended Use

6. Test Summary

SRF618B5 Fetal Monitor has been evaluated the safety and performance by lab bench testing according to the following standards:

IEC 60601-1, Medical Electrical Equipment Part 1: General Requirements for Safety, + 1988+A1:1991+A2:1995
IEC 60601-2-37, Medical electrical equipment Part 2-37: Particular requirements for the � basic safety and essential performance of ultrasonic medical diagnostic and monitoring equipment, 2001+A1:2004+A2:2005
IEC 60601-1-2, Medical electrical equipment Part 1-2: General requirements for basic safety �

Report by Sunray Medical Apparatus Co., Ltd.

Page 4-2

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Sponsor: Sunray Medical Apparatus Co., Ltd. Fetal Monitor, model: SRF618B5 Subject Device: 510(k) submission report (V1.0), Chapter 4 File No.:

and essential performance - Collateral standard: Electromagnetic compatibility - Requirements and tests, 2001+A1:2004

ISO 10993-1, Biological evaluation of medical devices Part 1: Evaluation and testing, 2003 �
ISO 10993-5, Biological evaluation of medical devices Part 5: Tests for In Vitro cytotoxicity, . 2009
ISO 10993-10, Biological evaluation of medical devices Part 10: Tests for irritation and . delaved-type hypersensitivity, 2002+A1:2006

7. Comparison to Predicate Device

Compare with predicate devices, the subject device is very similar in design principle, intended use, indication for use, functions, material and the applicable standards. The following differences between subject device and predicate devices do not raise and new questions of safety or effectiveness.

(1) Although the Power Supply, Working and Storage Environment, Dimensions and Weight, and some Safety Degree of subject device are a little different from predicate devices, they are both compliance with IEC 60601-1 requirements.

(2) Although some specifications of FHR (Fetal Heart Rate) and UC (Uterine Contraction Pressure) measurement for subject device are a little different from predicate devices, they can conduct their function normally.

(3) Although some specifications of Printer & Recorder, Display & Sound for subject device are a little different from predicate devices, these are only assistant functions.

(4) Although some Ultrasound Transducer Specification of subject device is a little different from predicate devices, they are both compliance with Track 1 requirement of "Guidance for Information for Manufacturers Seeking Marketing Clearance of Diagnostic Ultrasound Systems and Transducers".

Conclusions: The subject device has all features of the predicate devices. The differences do not affect the safety and effectiveness of the subject device.

8. Conclusion

The subject device has all features of the predicate devices. The few differences do not affect the safety and effectiveness of the subject device.

Thus, the subject device is substantially equivalent to the predicate devices.

9. Summary Prepared Date: 17 January 2013

Report by Sunray Medical Apparatus Co., Ltd.

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Image /page/3/Picture/1 description: The image shows the logo for the U.S. Department of Health & Human Services. The logo features a stylized caduceus, which is a symbol often associated with healthcare. The words "DEPARTMENT OF HEALTH & HUMAN SERVICES • USA" are arranged in a circular pattern around the caduceus.

Food and Drug Administration 10903 New Hampshire Avenue Document Control Center - WO66-G609 Silver Spring, MD 20993-0002

March 21, 2013

Sunray Medical Apparatus Co., Ltd. % Ms. Sabrina Wei Project Manager MEDLAB (Shenzhen) Information Service Co., Ltd. B102, Nanshan Medical Devices Industrial Park No.1019 of Nanhai Ave. SHENZHEN GUANGDONG 518067 P.R. CHINA

Re: K123335

Trade/Device Name: Fetal Monitor, model: SRF618B5 Regulation Number: 21 CFR§ 884.2740 Regulation Name: Perinatal monitoring system and accessories Regulatory Class: II Product Code: HGM, HGL Dated: January 17, 2013 Received: March 4, 2013

Dear Ms. Wei:

We have reviewed your Section 510(k) premarket notification of intent to market the device referenced above and have determined the device is substantially equivalent (for the indications for use stated in the enclosure) to legally marketed predicate devices marketed in interstate commerce prior to May 28, 1976, the enactment date of the Medical Device Amendments, or to devices that have been reclassified in accordance with the provisions of the Federal Food, Drug, and Cosmetic Act (Act) that do not require approval of a premarket approval application (PMA). You may, therefore, market the device, subject to the general controls provisions of the Act. The general controls provisions of the Act include requirements for annual registration, listing of devices, good manufacturing practice, labeling, and prohibitions against misbranding and adulteration. Please note: CDRH does not evaluate information related to contract liability warranties. We remind you, however, that device labeling must be truthful and not misleading.

If your device is classified (see above) into either class II (Special Controls) or class III (PMA), it may be subject to additional controls. Existing major regulations affecting your device can be found in the Code of Federal Regulations, Title 21, Parts 800 to 898. In addition, FDA may publish further announcements concerning your device in the Federal Register.

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Please be advised that FDA's issuance of a substantial equivalence determination does not mean that FDA has made a determination that your device complies with other requirements of the Act or any Federal statutes and regulations administered by other Federal agencies.

You must comply with all the Act's requirements, including, but not limited to: registration and listing (21 CFR Part 807); labeling (21 CFR Part 801); medical device reporting (reporting of medical device-related adverse events) (21 CFR 803); good manufacturing practice requirements as set forth in the quality systems (OS) regulation (21 CFR Part 820); and if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.

If you desire specific advice for your device on our labeling regulation (21 CFR Part 801), please go to http://www.fda.gov/AboutFDA/CentersOffices/CDRH/CDRHOffices/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.

You may obtain other general information on your responsibilities under the Act from the Division of Small Manufacturers, International and Consumer Assistance at its toll-free number (800) 638-2041 or (301) 796-7100 or at its Internet address http://www.fda.gov/MedicalDevices/ResourcesforYou/Industry/default.htm.

Sincerely yours,

Herbert Lerner -S

for Benjamin R. Fisher, Ph.D. Director Division of Reproductive, Gastro-Renal, and Urological Devices Office of Device Evaluation Center for Devices and Radiological Health

Enclosure

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Chapter 3. Indications for Use

Indications for Use

510(k) Number (if known): K123335

Device Name: Fetal Monitor, model: SRF618B5

Indications for Use:

Prescription Use _____________________________________________________________________________________________________________________________________________________________ (Part 21 CFR 801 Subpart D)

AND/OR

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

(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE OF NEEDED)

Concurrence of CDRH, Office of Device Evaluation (ODE)

Herbert - S

(Division Sign-Off) Division of Reproductive, Gastro-Renal, and Urological Devices K123335 510(k) Number

510(k) Number

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Diagnostic Ultrasound Indications for Use Form

System: Fetal Monitor, model: SRF618B5

Transducer: 2MHz PW Probe

Intended Use: Diagnostic ultrasound imaging or fluid flow analysis of the human body for antepartum use as follows:


Clinical Application	B	M	PWD	CWD	Color Doppler	Combined(Specify)	Other*(Specify)
Ophthalmic
Fetal / Obstetrics			N
Abdominal
Intra-operative (Specify)
Intra-operative (Neurological)
Laparoscopic
Pediatric
Small Organ (Specify)
Neonatal Cephalic
Adult Cephalic
Transrectal
Transvaginal
Transurethral
Musculo-skeletal (Conventional)
Musculo-skeletal (Superficial)
Intravascular
Cardiac
Intravascular
Peripheral vascular
Other (Urology)

N = new indication; P = previously cleared by FDA; E = added under this appendix Additional Comment: The above probe is a 2 MHz PW transducer for the fetal heart rate (FHR) detection. There are two FHR transducers in this device. These two transducers are the same. Use one for single fetus, use two for twins.

Image /page/6/Picture/7 description: The image shows the text "Herbert P Lerner-S 2013.03.21 15:41:47". The text is in a simple, sans-serif font and is printed in black ink. The background of the image is white. The text appears to be a timestamp or a record of some kind.

Page 2 of 2

Report by Sunray Medical Apparatus Co.

Regulation Number and Section

§ 884.2740 Perinatal monitoring system and accessories.

(a)
Identification. A perinatal monitoring system is a device used to show graphically the relationship between maternal labor and the fetal heart rate by means of combining and coordinating uterine contraction and fetal heart monitors with appropriate displays of the well-being of the fetus during pregnancy, labor, and delivery. This generic type of device may include any of the devices subject to §§ 884.2600, 884.2640, 884.2660, 884.2675, 884.2700, and 884.2720. This generic type of device may include the following accessories: Central monitoring system and remote repeaters, signal analysis and display equipment, patient and equipment supports, and component parts.(b)
Classification. Class II (performance standards).