The EZ-OX Plus is an integrated portable oxygen delivery system intended to provide supplemental oxygen to adults; a pressure requlator, flow meter and medical E-Oxygen cylinder with handle and shroud all integrated into a single, lightweight unit. Key specifications include hose barb connection, protective cap, carrying handle, easy to read content gauge, indexed flow meter, integrated regulator and usage chart label with safety instructions. Medical personnel can concentrate on providing patient care and treatment sooner without delays caused by the need to mount a regulator. With no assembly needed and the easy-to-use design, it is easy to operate.

For emergency use only when administered by properly trained personnel for oxygen deficiency and resuscitation. For all other medical applications. Rx only. Compressed gas cylinders in service or in storage shall be stabilized or otherwise secured to prevent falling and rolling.

Device Description

The EZ-OX Portable Oxygen System is a solution for supplying Oxygen USP using a device comprised of an integrated valve-regulator, flow meter and medical E-Oxygen aluminum cylinder with handle and shroud all integrated into a single unit. Key specifications include hose barb connection, protective shroud , carrying handle, easy to read content gauge, indexed flow meter, integrated valve-regulator and usage chart label with safety instructions. This design allows medical personnel the ability to provide patient care and treatment sooner without delays caused by the need to mount a conventional regulator.

AI/ML Overview

The provided text describes a 510(k) summary for the EZ-OX Plus Portable Oxygen System, focusing on demonstrating its substantial equivalence to a predicate device rather than presenting a study proving it meets specific acceptance criteria based on clinical performance metrics. Therefore, many of the requested sections (e.g., sample size for test set, number of experts, adjudication method, MRMC study, how ground truth for training set was established) are not explicitly present in the document because it's a regulatory submission for device clearance, not a clinical trial report.

However, I can extract information related to performance data and safety testing, which act as a form of acceptance criteria for this type of device.

1. Table of Acceptance Criteria and Reported Device Performance

For this device, the "acceptance criteria" are primarily defined by adherence to recognized standards and demonstrated performance in safety tests comparable to, or in some cases exceeding, those required for its classification and substantial equivalence to the predicate device.

Parameter (Acceptance Criteria)	Reported Device Performance (EZ-OX Plus)
Cylinder Standards	Conforms to 49 CFR 178.46: Specification seamless aluminum cylinders.
Regulator Ignition Sensitivity	ISO 10524 / EN-738-3 (Equivalent): Tested for resistance to ignition by pressure shock tests (max temperature and pressure shocks up to max pressure). Demonstrated "no ignition or damage to internal parts or areas within the regulator." Conducted in various configurations of regulator valve and shut-off valve.
Ignition by Particle Impact Risk	Designed to decrease risk: Incorporates a 60 micron filter at the filling connection, a 60 micron filter at the valve-regulator inlet, and a 20 micron filter in the seat of the regulator (even though ASTM G 175 with a positive ignition source wasn't required by EN-738-3/ISO 10524 for this specific test, the design addresses the risk).

2. Sample size used for the test set and the data provenance

Not applicable as this is not a clinical study involving a "test set" of patients or data in the typical sense. The "testing" refers to benchtop and component-level evaluations, not clinical data sets.

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. Ground truth for this type of device (mechanical/electrical safety and performance) is established via recognized engineering standards and test protocols, not expert clinical consensus on a "test set."

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

Not applicable. Adjudication methods are relevant for clinical studies where subjective assessments might be made (e.g., by human readers of medical images). This document describes objective engineering tests.

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 portable oxygen delivery system, not an AI-assisted diagnostic or therapeutic tool that would involve human readers or AI assistance.

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

Not applicable. This is not an algorithm or AI system. Its performance is inherent to its mechanical design and function.

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

The "ground truth" for the device's performance is established by adherence to recognized international and national engineering/safety standards (e.g., 49 CFR 178.46, ISO 10524, EN-738-3) and successful completion of specified physical and mechanical tests outlined within those standards. This includes evaluating the regulator's resistance to ignition under specific pressure and temperature conditions.

8. The sample size for the training set

Not applicable. There is no concept of a "training set" for this type of medical device clearance. The device is designed, manufactured, and tested to specifications, not "trained" like a machine learning model.

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

Not applicable, as there is no training set.

Summary

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APR 1 0 2006

510 (k) Summary EZ-OX Plus Portable Oxygen System 510(k) Number: _______________________________________________________________________________________________________________________________________________________________ K053117

Submitted in accordance with the requirements of SMDA 1990 and 21 CFR807.92

APPLICANT'S/SUBMITTER'S INFORMATION 1.

Air Liquide America LP 2700 Post Oak Blvd. Suite 1800 Houston, Texas 77056 Direct Phone: Internet: Establishment Registration No:

800-624-8000 www.us.airliquide.com Pending

Contact: Contact's Phone: Contact's Fax:

Angie Beyer, Compliance Specialist 713-624-8268 713-624-8580

1. DATE
  February 7, 2006

DEVICE INFORMATION 3.

Trade/Proprietary Name:	EZ-OX Plus
Common Name:	Portable Oxygen Delivery System
Device Name:	Cylinder, Compressed Gas, and IntegratedValve-Regulator
Classification Panel:	Cardiovascular and Respiratory Devices
Classification Number:	unclassified
Product Nomenclature:	Cylinder, Compressed Gas, and IntegratedValve-Regulator
Product Code(s):	ECX

4. DEVICE CLASSIFICATION

Empty Compressed gas cylinders and compressed gas cylinder with valve assemblies are unclassified devices, and reviewed by the Anesthesiology and Respiratory Devices Branch, Division of Anesthesiology, General Hospital, Infection Control, and Dental Devices.

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AIR LIQUIDE

Gas Cylinder pressure regulators and gas pressure gauges are Class 1 devices and exempted from pre-market notification.

5. PREDICATE DEVICE(s)

510(k) No: K033897: MEDICYL-E-Lite Portable Medical Oxygen System . (Linde)

6. DEVICE DESCRIPTION

INDICATIONS FOR USE 7.

The EZ-OX Plus is an integrated portable oxygen delivery system intended to provide supplemental oxygen to adults. When administered by properly trained personnel for oxygen deficiency and resuscitation, the EZ-OX Plus is for emergency use only. For all other medical applications, the device is Rx only.

8. DEVICE FUNCTION

Compressed gas cylinder with an adjustable valve to control the flow of Oxygen to the patient.

9. TECHNOLOGICAL CHARACTORISTICS

A summary comparison of technological characteristics, including design and materials is provided in the table below:

Parameter	EZ-OX Plus	MEDICYL-E-Lite
Valve/Regulator
Low Flow Settings	Yes (≥ .5L)	Yes
Flow Between Settings	No	No
Cylinder on/off	No	Yes
Filling Port	Active	Active
Contents Gauge	Active	Non-active
Filters	4	3
Pressure Design	3000 psi (max)	4350 psi
Excess Flow Device	Yes	Yes
Single stage piston style	Yes	Yes
Guard
Hand Grip	1 grip	2 grip
Access Ports	Yes	Yes
Flow selector/ hose barb/gauge aligned	Yes	Yes
Color	Green	Green

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AIR LIQUIDE

Parameter	EZ-OX Plus	MEDICYL-E-Lite
Height (guard andintegrated valve-regulator)	7"	6.75"
Cylinder
Cylinder Sizes	D, E	D, E
Weight (E) (product)	950 gr	900gr
Materials/construction	Aluminum	Aluminum

The manufacturer believes that the technological characteristics of the EZ-OX Plus portable oxygen system is substantially similar to those of the predicated device.

10. PERFORMANCE DATA

The aluminum cylinders conform to the requirements of 49 CFR 178.46. Specification seamless aluminum cylinders.

SAFETY TESTING 11.

The ASTM G 175 evaluates the regulator's sensitivity to ignition by subjecting the regulator to two basic tests.

One test requires subjecting the regulator to pressure shock tests according to ISO 10524. The integrated valve-regulator was tested for resistance to ignition in accordance to European Standard EN-738-3. Testing for resistance to ignition by EN-738-3 is equivalent to the ignition test in ISO 10524. The test requires subjecting the regulator to maximum temperature and to pressure shocks, up to maximum pressure, to demonstrate no ignition or damage to internal parts or areas within the regulator. As required by the standard, these pressure shock tests are conducted in various configurations of the regulator valve and shut-off valve.

The second test evaluates the regulator's behavior when subjected to a positive ignition source to simulate ignition by particle impact. The integrated valveregulator has been tested for ignition in accordance to EN-738-3, equivalent to ISO 10524. These recognized standards do not require ASTM G 175 test using a positive ignition source to simulate ignition by particle impact. However, the regulator is designed to decrease the risk of ignition by particle impact by incorporating a 60 micron filter at the filling connection, a 60 micron filter at the valve-regulator inlet, and a 20 micron filter in the seat of the regulator.

12. STATEMENT OF SUBSTANTIAL EQUIVALENCE

Based upon the safety and performance testing and compliance with voluntary standards, the manufacturer believes that the EZ-OX Plus portable oxygen delivery system is substantially equivalent to the predicate device, and does not raise any new questions of safety or effectiveness.

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Image /page/3/Picture/1 description: The image shows the seal of the Department of Health and Human Services (HHS) of the United States. The seal features a stylized eagle with three stripes forming its body, representing the three branches of government. The words "DEPARTMENT OF HEALTH AND HUMAN SERVICES - USA" are arranged in a circular pattern around the eagle.

Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850

APR 1 0 2006

Ms. Angie Beyer Air Liquide Healthcare America 2700 Post Oak Boulevard, Suite 1800 Houston, Texas 77056

Re: K053117

Trade/Device Name: EZ-OX Plus Portable Oxygen Delivery System Regulation Number: Unclassified Regulation Name: None Regulatory Class: None Product Code: ECX Dated: February 9, 2006 Received: March 3, 2006

Dear Ms. Bever:

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 (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.

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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Page-2 Ms. Angie Beyer

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); good manufacturing practice requirements as set forth in the quality systems (QS) regulation (21 CFR Part 820); and if applicable, the electronic product radiation control provisions (sections 531-542 of the Act); 21 CFR 1000-1050.

This letter will allow you to continue marketing your device as described in your Section 510(k) premarket notification. The FDA finding of substantial equivalence of your device to a legally marketed predicate device results in a classification for your device and thus. permits your device to proceed to the market.

If you desire specific advice for your device on our labeling regulation (21 CFR Part 801 and additionally Part 809.10 for in vitro diagnostic devices), please contact the Office of Compliance at (301) 594-4613. Additionally, for questions on the promotion and advertising of your device, please contact the Office of Compliance at (301) 594-4639. Other general information on your responsibilities under the Act may be obtained from the Division of Small Manufacturers, International and Consumer Assistance at their toll free number (800) 638-2041 or at (301) 443-6597 or at its Internet address http://www.fda.gov/cdrh/dsma/dsmamain.html.

Sincerely yours,

Chiu Lin, Ph.D.

Chiu Lin, Ph.D Director Division of Anesthesiology, General Hospital, Infection Control and Dental Devices Office of Device Evaluation Center for Devices and Radiological Health.

Enclosure

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Indications for Use

KOSZIA 510(k) Number (if known):

Device Name: EZ-OX Plus Portable Oxygen Delivery System

Indications For Use:

AND/OR Over-The-Counter Use Prescription Use × (Part 21 CFR 801 Subpart D) (21 CFR 801 Subpart C)

(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IF NEEDED) Concurrence of CDRH, Office of Device Evaluation (ODE)

Aun Syinot

andogy, General Hospital

Page 1 of

Regulation Number and Section

§ 868.2700 Pressure regulator.

(a)
Identification. A pressure regulator is a device, often called a pressure-reducing valve, that is intended for medical purposes and that is used to convert a medical gas pressure from a high variable pressure to a lower, more constant working pressure. This device includes mechanical oxygen regulators.(b)
Classification. Class I (general controls). The device is exempt from the premarket notification procedures in subpart E of part 807 of this chapter subject to the limitations in § 868.9.