KMC-650 Surgical Mobile Fluoroscopic X-ray System is indicated for use in generating fluoroscopic / radioscopic images of human anatomy. This device is not intended for interventional guided procedure & mammographic applications.

Device Description

The KMC-650 Surgical Mobile Fluoroscopic X-rav System consists of a high voltage (HV) inverter generator. a tube support unit, an X-ray beam limiting device, mobile cart, a detector, operating software, and a tube, and is primarily used in a hospital for diagnosis of diseases in skeletal, respiratory and urinary systems such as the skull, spinal column, chest, abdomen, extremities, and other body parts. Not to be used for mammography.

KMC-650 is a solution to produce radiological images of patient during medical operations. This inverter control X-ray unit visualizes the anatomical structure on screen, which is obtained by X-ray fluoroscopy and the image intensifier. This system can be applied in emergency room, operation room, cast room or etc. of hospital.

AI/ML Overview

This document is a 510(k) Summary for a medical device called the KMC-650 Surgical Mobile Fluoroscopic X-ray System. It asserts substantial equivalence to a predicate device (KMC-950) rather than providing a performance study against specific acceptance criteria for a novel device. Therefore, many of the requested elements for a detailed AI/model performance description are not applicable or cannot be extracted directly from this document.

However, I can extract information related to the device's technical specifications and safety/effectiveness concerns addressed to establish substantial equivalence.

Here's an attempt to answer your questions based on the provided text, noting where the information is not present or relevant to this type of submission:

A table of acceptance criteria and the reported device performance

This document does not present "acceptance criteria" in the typical sense of a novel device's performance targets (e.g., sensitivity, specificity for a diagnostic algorithm) and then report performance against those. Instead, it argues for "substantial equivalence" to a predicate device (KMC-950). The performance characteristics are compared to the predicate device.

Characteristic	Predicate Device (KMC-950)	Proposed Device (KMC-650)	Acceptance Criteria (Implicit for Substantial Equivalence)	Reported Performance (KMC-650)
X-ray Tube	Varian (RAD-99)	Toshiba (DF-151SBR)	Functionally equivalent; safe and effective	Different manufacturer and model, but no new safety/effectiveness concerns raised.
Anode Type	Rotating	Stationary	Functionally equivalent; safe and effective	Stationary
Heat Capacity	300,000 HU	45,000 HU	Sufficient for intended use (1 kW or less fluoro)	45,000 HU. Stated as sufficient as typical fluoroscopy mode requires 1 kW or less.
Anode Heat Cooling	70 kHU/min	47 kHU/min	Sufficient for intended use	47 kHU/min
Focal Size	0.3mm / 0.6mm	0.5mm / 1.5mm	Appropriately sized for imaging	0.5mm / 1.5mm
X-ray Generator	POSKOM (HTC-120)	POSKOM (C-650)	Functionally equivalent; safe and effective	Different model, but high frequency/inverter type for both.
Power Output	12.5 kW	2.2 kW	Sufficient for intended use (1 kW or less fluoro)	2.2 kW. Stated as sufficient as typical fluoroscopy mode requires 1 kW or less.
Fluoro kV range	40 to 125 kV	40 to 110 kV	Within clinically acceptable range	40 to 110 kV
Fluoro mA range	0.5 to 5 mA	0.5 to 4 mA	Within clinically acceptable range	0.5 to 4 mA
Pulse Fluoro	Yes	Yes	Present	Yes
ABS function	Yes	Yes	Present	Yes
Snap Shot	8.0 mA shot available	8.0 mA shot available	Present	8.0 mA shot available
Boost Shot	20.0 mA shot available	20.0 mA shot available	Present	20.0 mA shot available
Image Intensifier Size	9"	9"	Same size	9"
Magnification	9" / 6" / 4.5"	9" / 6" / 4.5"	Same options	9" / 6" / 4.5"
Camera Type	1/2" CCD	1/2" CCD	CCD	CCD
Active pixels	512 x 512	1,024 x 1,024	Equivalent or improved (higher resolution shown)	1,024 x 1,024
SID	950mm	1000mm	Within acceptable range	1000mm
Range of C-arm Rail Rotation	115° (90° / 25°)	135° (90° / 45°)	Clinically acceptable	135° (90° / 45°)
Image Storage Capacity	Digital	Digital	Digital storage	Digital
Image Matrix Size	5,000 images	5,000 images	Adequate storage	5,000 images
Monitor Size	17"	19"	Adequate for display (larger shown)	19"

Note: The "acceptance criteria" here are implicitly that the proposed device is either equivalent to the predicate or that any differences do not raise new questions of safety or effectiveness. The device "performance" is the technical specification of the KMC-650.

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

This document describes a 510(k) submission for a fluoroscopic X-ray system, which is hardware. It does not mention any "test set" in the context of evaluation of an AI or algorithm. The "studies" referenced are non-clinical engineering and compliance tests.
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. This is not an AI/algorithm submission that requires expert-established ground truth for a test set.
Adjudication method (e.g. 2+1, 3+1, none) for the test set

Not applicable.
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 an X-ray system, not an AI-assisted diagnostic tool.
If a standalone (i.e. algorithm only without human-in-the-loop performance) was done

Not applicable.
The type of ground truth used (expert concensus, pathology, outcomes data, etc)

Not applicable. The ground truth for this device's performance validation would be based on physical measurements of radiation output, image quality metrics (resolution, contrast, noise), electrical safety, EMC compliance, etc., according to recognized standards.
The sample size for the training set

Not applicable. There is no training set for this hardware device.
How the ground truth for the training set was established

Not applicable.

Summary of Device Safety and Effectiveness from the Document:

The document primarily focuses on establishing Substantial Equivalence between the KMC-650 and its predicate device, KMC-950. The safety and effectiveness of the KMC-650 are asserted through:

Comparison of technological characteristics: A detailed table comparing specifications like X-ray tube, generator, fluoroscopic modes, image intensifier, camera, and C-arm mechanics. Differences (e.g., tube's heat capacity, power output, kV/mA ranges, camera active pixels) are addressed by explaining that the proposed device's lower specifications are still sufficient for typical fluoroscopy modes (e.g., 1 kW or less) or that higher specifications (e.g., camera resolution) represent an improvement.
Compliance with recognized standards: The device adheres to a robust set of international and FDA recognized standards, including:
- IEC 60601-1:2005 (General requirements for basic safety and essential performance)
- IEC 60601-1-2:2007 (Electromagnetic compatibility)
- IEC 60601-1-3:2008 (Radiation protection in diagnostic X-ray equipment)
- IEC 60601-2-28:2010 (Medical diagnostic X-ray equipment for radiography and radioscopy)
- IEC 60601-2-43:2010 (X-ray equipment for interventional procedures)
- IEC 60601-2-54:2009 (X-ray equipment for radiography and radioscopy)
- NEMA PS 3.1-3.20 (DICOM standard)
- ISO 14971:2012 (Application of risk management for medical devices)
- 21 CFR 1020.32 (Electronic product radiation control)
Verification and Validation Activities: Stated that "Engineering testing and standards compliance testing were successfully conducted and did not raise any new safety questions or concerns or identify new risks."
Instructions for Use: Labeling includes information for safe and effective operation.

The conclusion is that despite some differences in components and specifications, these differences "do not raise any new questions of safety and effectiveness."

Summary

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Image /page/0/Picture/1 description: The image shows the logo for the U.S. Department of Health & Human Services. The logo consists of a circular seal with the text "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" around the perimeter. Inside the circle is a stylized symbol of three human profiles facing to the right, stacked on top of each other.

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

May 20, 2016

GEMSS MEDICAL SYSTEMS CO., LTD % Mr. Dave Kim Medical Device Regulatory Affairs Mtech Group 8310 Buffalo Speedway HOUSTON TX 77025

Re: K160065

Trade/Device Name: KMC-650 GEMSS Medical System Surgical Mobile Fluoroscopic X-ray System Regulation Number: 21 CFR 892.1650 Regulation Name: Image-intensified fluoroscopic x-ray system Regulatory Class: II Product Code: OXO, JAA Dated: April 13, 2016 Received: April 18, 2016

Dear Mr. 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 (Act) that do not require approval of a premarket approval application (PMA). You may, therefore, market the device, subject to the general controls provisions of the Act. The general controls provisions of the Act include requirements for annual registration, listing of devices, good manufacturing practice, labeling, and prohibitions against misbranding and adulteration. Please note: CDRH does not evaluate information related to contract liability warranties. We remind you, however, that device labeling must be truthful and not misleading.

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

Please be advised that FDA's issuance of a substantial equivalence determination does not mean that FDA has made a determination that your device complies with other requirements of the Act or any Federal statutes and regulations administered by other Federal agencies. You must comply with all the Act's requirements, including, but not limited to: registration and listing (21 CFR Part 807); labeling (21 CFR Part 801); medical device reporting (reporting of medical device-related adverse events) (21 CFR 803); good manufacturing practice requirements as set

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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 contact the Division of Industry and Consumer Education at its toll-free number (800) 638 2041 or (301) 796-7100 or at its Internet address

http://www.fda.gov/MedicalDevices/Resourcesfor You/Industry/default.htm. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR Part 807.97). For questions regarding the reporting of adverse events under the MDR regulation (21 CFR Part 803), please go to

http://www.fda.gov/MedicalDevices/Safety/ReportaProblem/default.htm for the CDRH's Office of Surveillance and Biometrics/Division of Postmarket Surveillance.

You may obtain other general information on your responsibilities under the Act from the Division of Industry and Consumer Education 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,

Michael D.'Hara

For

Robert Ochs, Ph.D. Director Division of Radiological Health Office of In Vitro Diagnostics and Radiological Health Center for Devices and Radiological Health

Enclosure

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Indications for Use

510(k) Number (if known) K160065

Device Name KMC-650 GEMSS Medical System Surgical Mobile Fluoroscopic X-ray System

Indications for Use (Describe)

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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SECTION 07

510(k) SUMMARY

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510(k) SUMMARY For KMC-650

Submitted by:

GEMSS MEDICAL SYSTEMS CO., LTD. Address - 2nd Floor, 29, Dunchon-daero 541 beon-gil, Jungwon-gu, Seongnam-si, Gyeonggi-do, Korea Telephone -- +82-31-764-7321~3 Fax - +82-31-764-7324 Contact - Mr. Sangwoo Lee Internet - http://www.gemss-medical.com

This summary of 510(k) safety and effectiveness information is being submitted in accordance with requirements of SMDA 1990 and 21 CFR Part 807.92.

Date: April 12, 2016

General Information:

Establishment: GEMSS MEDICAL SYSTEMS CO., LTD. 2nd Floor, 29, Dunchon-daero 541 beon-gil, Jungwon-gu, seongnam-si, KOREA, REPUBLIC OF 13216 Registration Number: 3003384390

GMESS MEDICAL SYSTEMS CO., LTD. is the holder/owner for this 510(k).

Official Correspondent Contact:

Dave Kim Mtech Group 8310 Buffalo Speedway Houston, TX 77025 TEL : 713-467-2607

FAX : 713-583-8988

E-mail : davekim@mtech-inc.net

Device name and Classification

Trade Name : KMC-650 Classification Name : Image-intensified Fluoroscopic Mobile X-ray System Classification Panel : Radiology Classification Regulation : 21 CFR 892. 1650

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Device Classification	: Class II
Primary product code	: OXO
Secondary product code	: JAA

Legally Marketed Predicated Device

Trade Name	: KMC-950
510(k) Clearance #	: K032761
Clearance date	: 05/14/2004
Classification Name	: Image Intensified Fluoroscopic Mobile X-ray System
Classification Panel	: Radiology
CFR Section	: 21CFR 892.1650
Device Class	: Class II
Product Code	: JAA, OWB, OXO

5. Device Description

6. Indications for Use

KMC-650 Surgical Mobile Fluoroscopic X-ray System is indicated for use in generating fluoroscopic / radioscopic images of human anatomy. This device is not interventional guided procedure & mammographic applications

7. Substantial Equivalence

KMC-650 is substantially equivalent to the commercially available KMC-950 of GEMSS Medical System (K032761). The detailed SE discussion is provided in SECTION 12.

		Predicate device	Proposed device
Model Name		KMC-950	KMC-650
510(k) Number		K032761
Manufacturer		GEMSS Medical System Co., Ltd	GEMSS Medical System Co., Ltd
X-ray tube	Manufacturer	Varian (RAD-99)	Toshiba (DF-151SBR)
	Anode Type	Rotating	Stationary
	Heat Capacity	300,000 HU	45,000 HU
	Anode Heat Cooling	70kHU/min	47kHU/min
	Focal size	0.3mm / 0.6mm	0.5mm/1.5mm
X-ray	Manufacturer	POSKOM (HTC-120)	POSKOM (C-650)
generator	X-ray Generator Type	High frequency / inverter type	High frequency / inverter type

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	Power Output	12.5 kW	2.2 kW
Fluoroscopic	kV range	40 to 125 kV See belowdiscussion for differences	40 to 110 kV See belowdiscussion for differences
Mode	mA range	0.5 to 5 mA. See belowdiscussion for differences	0.5 to 4 mA. See belowdiscussion for differences
	Pulse Fluoro	Yes	Yes
	ABS function	Yes	Yes
	Snap Shot	8.0 mA shot available	8.0 mA shot available
	Boost Shot	20.0 mA shot available	20.0 mA shot available
Image	Manufacturer	Thales / Toshiba	Thales / Toshiba
Intensifier	Size	9"	9"
	Magnification	9" / 6" / 4.5"	9" / 6" / 4.5"
Camera	Manufacturer	RAYSIS	GEMSS
	Type	1/2" CCD	1/2" CCD
	Active pixels	512 x 512	1,024 x 1,024
C-arm	Manufacturer	GEMSS medical Systems Co.,Ltd	GEMSS medical Systems Co.,Ltd
	SID	950mm	1000mm
	Range of C-ram Rail	115° (90° / 25°)	135° (90° / 45°)
	Rotation
	Range of the LinerFR-arm Movement	200 mm	200 mm
	Range of the LinearT-arm Movement	500 mm	500 mm
	Range of Swing-armRotation	$\pm$ 12.5°	$\pm$ 12.5°
	Range of Stay-armRotation	360°	360°
Image	Storage Capacity	Digital	Digital
Processing	Image Matrix Size	5,000 images	5,000 images
	Monitor Size	17"	19"
Collimator	Model Name	KMC-950CM	KMC-650CMR
	Manufacturer	GEMSS medical Systems Co.,Ltd	GEMSS medical Systems Co.,Ltd
	Collimator	Motor control / rotation	Motor control / rotation

Summary of technological characteristics of the device compared to the predicate device

※ Performance Differences in the Generator

Items		KMC-950	KMC-650
Generator	MODEL	HTC-120	C-650
	Max Power	12.5 kW	2.2 kW
DeviceSpecifications	kV	Fluoro : 40 - 125 kV	Fluoro : 40 - 110 kV
	mA	Fluoro : 0.5~ 5 mA	Fluoro : 0.5 - 4 mA,

→ The generator capacity must be sufficient to meet the fluoroscopy and Radiography exposure requirements. The power requirement for a generator depends on the size, length and thickness of X-ray Tube (Anode) Filament. The generator's mA output also depends on the focal spot sizes.

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A typical fluoroscopy mode for KMC-950 and KMC-650 requires the power of 1 kW or less. Therefore, the generator outputs for KMC-650 and KMC-950 in fluoroscopy mode is not significantly different.

KMC-650/950 Firmware Comparison Table

Items	KMC-650	KMC-950	Remarks
Camera Board	650CAMB	950CAMB	Camera specifications are different.(activepixels)
Main Board	650MCB	950MCB	Generator Control, Key Input functionoperates differently.
OP Control Board	650OPCB	-	A separate OP Board exists for KMC-650whereas KMC-950 has the main controlboard only without a separate OP board

KMC-650 is designed as a set of components (X-ray tube and housing, imaging intensifier, collimator, generator). KMC-650 and components conform to the FDA recognized standards. Based on the recognized standard conformity evidences related to electro-, mechanical-, software-, clinical-, and risk management, it is confirmed that the all technological characteristics of KMC-650 is substantially equivalent to the predicate device.

9. General Safety and Effectiveness Concern

To minimize electrical, mechanical, and radiation hazards, GEMSS MEDICAL SYSTEMS CO., LTD. adheres to recognized and established industry practice, and all equipment complies with the relevant FDA and international standards.

Through verification and validation activities, the safety and effectiveness of KMC-650 is verified and validated. Engineering testing and standards compliance testing were successfully conducted and did not raise any new safety questions or concerns or identify new risks. And instructions for use are included within the device labeling, and the information provided will enable the user to operate the device in a safe and effective manner.

Electrical, EMC, mechanical safety and performance testing according to FDA recognized standards were performed. All test results were satisfactory. Applied standards are as follows:

IEC60601-1:2005
A IEC60601-1-2:2007
A IEC60601-1-3:2008
A IEC60601-2-28:2010
A IEC60601-2-43:2010
A IEC60601-2-54:2009
A NEMA PS 3.1-3.20
A ISO14971:2012

And, EPRC regulation was satisfactory.

21CFR1020.32 A
In addition, FDA quidance were satisfactorily considered.
Guidance for the Submissions of 510(k)s for Solid State X-ray Imaging Devices

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Based on the robust set of results from the non-clinical and clinical studies that have been performed, KMC-650 has been found to be substantially equivalent to the predicate device as well as found to be a safe and effective surgical mobile fluoroscopic X-ray imaging system.

10. Conclusion as to Substantial Equivalence

KMC-650 is substantially equivalent to the predicate device KMC-950 (K032761). These devices are very similar in the intended use, the design principle, the performance and the applicable standards. Some characteristics, for example, their appearance, the user interfaces are different. However the compliance reports, demonstrations and descriptions in this submission STED provide demonstration that these small and minor differences do not raise any new questions of safety and effectiveness. So GEMSS MEDICAL SYSTEMS CO., LTD. concludes KMC-650 is substantially equivalent to the predicate device KMC-950 (K0327618).

Regulation Number and Section

§ 892.1650 Image-intensified fluoroscopic x-ray system.

(a)
Identification. An image-intensified fluoroscopic x-ray system is a device intended to visualize anatomical structures by converting a pattern of x-radiation into a visible image through electronic amplification. This generic type of device may include signal analysis and display equipment, patient and equipment supports, component parts, and accessories.(b)
Classification. Class II (special controls). An anthrogram tray or radiology dental tray intended for use with an image-intensified fluoroscopic x-ray system only is exempt from the premarket notification procedures in subpart E of part 807 of this chapter subject to the limitations in § 892.9. In addition, when intended as an accessory to the device described in paragraph (a) of this section, the fluoroscopic compression device is exempt from the premarket notification procedures in subpart E of part 807 of this chapter subject to the limitations in § 892.9.