(259 days)
AN85/AN86 EO Indicators are single-use Type 1 process indicators used to distinguish between processed packaged medical devices, through a visible color change from yellow-green to blue. They are intended for the 12 hour sterilization cycle at 20-29°C in the Anprolene AN75 Ethylene Oxide Gas Sterilizer manufactured by Andersen Sterilizers, Inc. Critical process parameters for the cycle are summarized in Table 1.
AN85/AN86 EO Indicators are adhesive-backed Type 1 process indicators for ethylene oxide sterilization that conform to AAMI/ANSI/ISO 11140-1.
AN85/AN86 EO Indicators contain a pH indicator. The pH indicator ink is printed in dots on the AN85 and in stripes on the AN86. The indicator ink is laminated between two layers of plastic material and changes color from yellow-green to blue by chemical reactions when exposed to ethylene oxide.
The provided document describes the acceptance criteria and a study demonstrating that the AN85/AN86 EO Indicators meet these criteria.
Here's the breakdown:
1. Table of Acceptance Criteria and Reported Device Performance
| Test | Acceptance Criteria (Description from document) | Reported Device Performance (Result from document) |
|---|---|---|
| Functionality | 1) Critical parameters include temperature, time, and gas concentration at a relative humidity of 35-90%; 2) ISO 11140-1 Type 1 process indicator; 3) Indicate EO exposure in the CIER and in the Anprolene AN75 sterilizer. | Pass |
| Biocompatibility | Not direct or indirect patient-contacting devices; Non-toxic ingredients; Provides reasonable assurance for safety. | Pass |
| Endpoint Color Stability | Stable for at least 12 months at 20-25°C and 30-50% relative humidity away from direct sunlight; Stability demonstrates reasonable assurance for effectiveness. | Pass |
| Shelf Life | Maintains performance specifications throughout the shelf life of 2 years. | Pass |
2. Sample size used for the test set and data provenance
The document does not specify a distinct "test set" sample size in terms of number of actual indicators used. The testing was described as "Performance testing" characterized in a Chemical Indicator Evaluator Resistometer (CIER) and an Anprolene AN75 Ethylene Oxide Gas Sterilizer.
- Sample size: Not explicitly quantified. The document states "AN85/AN86 EO Indicators" or "subject AN85/AN86 EO Indicators" were tested, implying a sufficient number for the experiments, but a specific count is not given.
- Data provenance: Prospective. The performance testing was conducted specifically to demonstrate the safety and effectiveness of the AN85/AN86 EO Indicators for their intended use with the Anprolene AN75 Ethylene Oxide Gas Sterilizer.
3. Number of experts used to establish the ground truth for the test set and qualifications of those experts
Not applicable. This device is a chemical indicator, not a diagnostic device requiring human expert interpretation in the traditional sense for establishing ground truth. The "ground truth" for its performance is determined by its chemical reaction to ethylene oxide under controlled conditions, producing a visible color change.
4. Adjudication method for the test set
Not applicable. As noted above, the performance of a chemical indicator is based on its visible color change response to chemical exposure, rather than a subjective interpretation requiring adjudication. The "Pass" results in the summary table indicate that the indicators successfully met the predefined chemical and physical criteria for each test.
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 is a chemical indicator, not an AI-powered diagnostic device. No human reader studies (MRMC or otherwise) were conducted or are relevant.
6. If a standalone (i.e. algorithm only without human-in-the-loop performance) was done
Not applicable. This is a chemical indicator; there is no algorithm involved. The "standalone" performance means the indicator itself (the physical device) was tested.
7. The type of ground truth used
The ground truth for the AN85/AN86 EO Indicators is based on:
- Controlled chemical and physical exposure: The indicators are exposed to precisely defined ethylene oxide sterilization cycle parameters (temperature, time, gas concentration, humidity) in a Chemical Indicator Evaluator Resistometer (CIER) and the Anprolene AN75 Ethylene Oxide Gas Sterilizer.
- Observable color change: The ground truth is the predictable and consistent color change from "yellow-green to blue" when exposed to these parameters, and no color change when not exposed.
- Compliance with standards: Adherence to ISO 11140-1 for Type 1 process indicators.
8. The sample size for the training set
Not applicable. This is a chemical indicator, not a machine learning model that requires a training set.
9. How the ground truth for the training set was established
Not applicable. This is a chemical indicator, not a machine learning model.
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October 30, 2017
Andersen Sterilizers, Inc. William Andersen President 3154 Caroline Drive Haw River, North Carolina 27258
Re: K170426
Trade/Device Name: AN85/AN86 EO Indicators Regulation Number: 21 CFR 880.2800 Regulation Name: Sterilization Process Indicator Regulatory Class: II Product Code: JOJ Dated: September 28, 2017 Received: October 6, 2017
Dear William Andersen:
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 of medical device-related adverse events) (21 CFR 803); 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.
U.S. Food & Drug Administration 10903 New Hampshire Avenue Silver Spring, MD 20993 www.fda.qov
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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 (DICE) 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. 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 (DICE) 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,
Michael J. Ryan -S
for Tina Kiang, Ph.D. Acting Director Division of Anesthesiology, General Hospital, Respiratory, Infection Control, and Dental Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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DEPARTMENT OF HEALTH AND HUMAN SERVICES Food and Drug Administration
Indications for Use
510(k) Number (if known) K170426
Device Name AN85/AN86 EO Indicators
Indications for Use (Describe)
AN85/AN86 EO Indicators are single-use Type 1 process indicators used to distinguish between processed packaged medical devices, through a visible color change from yellow-green to blue. They are intended for the 12 hour sterilization cycle at 20-29°C in the Anprolene AN75 Ethylene Oxide Gas Sterilizer manufactured by Andersen Sterilizers, Inc. Critical process parameters for the cycle are summarized in Table 1.
Table 1. Critical sterilization cycle parameters in the Anprolene AN75 Ethylene Oxide Gas Sterilizer
| Ethylene Oxide | Temperature | Relative Humidity | Ethylene Oxide Exposure Time | Total Cycle Time |
|---|---|---|---|---|
| 17.6 g ± 5% | 20-29°C | 35-90% | 12 hours | 14 hours |
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)
PLEASE DO NOT WRITE BELOW THIS LINE - CONTINUE ON A SEPARATE PAGE IF NEEDED.
FOR FDA USE ONLY
Concurrence of Center for Devices and Radiological Health (CDRH) (Signature)
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K170426
510(k) Summary
| 5.1 Applicant's Name and Address | |||
|---|---|---|---|
Andersen Sterilizers, Inc. Establishment Registration Number 3004634710 3154 Caroline Drive Haw River, NC 27258
5.2 Contact Person
William K. Andersen, BE, MD, FAAOS President Phone: 336-376-8622 Fax: 336-376-5428
5.3 Date of Preparation
September 28, 2017
5.4 Device
| Proprietary Name | AN85/AN86 EO Indicators |
|---|---|
| Common Name | Indicator, Physical/Chemical Sterilization Process |
| Classification | Class II (21 CFR 880.2800) Chemical Indicator |
| Product Code | JOJ |
5.5 Predicate Device
Device Name 510(k) number Manufacturer
AN85/AN86 EO Indicators K150644 Andersen Sterilizers, Inc.
The predicate AN85 and AN86 EO Indicators (K150644) are approved for use with the EOGas 4 Ethylene Oxide Gas Sterilization system manufactured by Andersen Sterilizers, Inc.
In this submission, the sterilization temperature and time claims of the predicate devices were modified in order to indicate the AN85 and AN86 EO Indicators for use in the Anprolene AN75 Ethylene Oxide Gas Sterilization System. No modifications were made to the manufacturing method, technology, or intended use.
5.6 Device Description
AN85/AN86 EO Indicators are adhesive-backed Type 1 process indicators for ethylene oxide sterilization that conform to AAMI/ANSI/ISO 11140-1.
AN85/AN86 EO Indicators contain a pH indicator. The pH indicator ink is printed in dots on the AN85 and in stripes on the AN86. The indicator ink is laminated between two layers of plastic material and changes color from yellow-green to blue by chemical reactions when exposed to ethylene oxide.
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5.7 Indications for Use
AN85/AN86 EO Indicators are single-use Type 1 process indicators used to distinguish between processed and unprocessed packaged medical devices, through a visible color change from yellow-green to blue. They are intended for the 12 hour sterilization cycle at 20-29°C in the Anprolene AN75 Ethylene Oxide Gas Sterilizer manufactured by Andersen Sterilizers, Inc. Critical process parameters for the cycle are summarized in Table 5-1.
Table 5-1. Critical sterilization cycle parameters in the Anprolene AN75 Ethylene Oxide Gas Sterilizer
| Ethylene Oxide | Temperature | Relative Humidity | Ethylene Oxide Exposure Time | Total Cycle Time |
|---|---|---|---|---|
| 17.6 g ± 5% | 20-29°C | 35-90% | 12 hours | 14 hours |
5.8 Technological Characteristics
AN85/AN86 EO Indicators contain a proprietary pH indicator which changes color by chemical reactions when exposed to ethylene oxide, allowing differentiation of ethylene oxide processed vs. unprocessed devices.
5.9 Performance Testing
The performance of AN85/AN86 EO Indicators was characterized in a Chemical Indicator Evaluator Resistometer (CIER) as well as in an Anprolene AN75 Ethylene Oxide Gas Sterilizer using the 12 hour cycle at 20-29°C. Performance testing is summarized in Table 5-2.
Table 5-2. Summary of bench tests performed to demonstrate safety and effectiveness of AN85/AN86 EO Indicators
| Test | Description | Result |
|---|---|---|
| Functionality | 1) Critical parameters include temperature, time, and gas concentration ata relative humidity of 35-90%;2) ISO 11140-1 Type 1 process indicator;3) Indicate EO exposure in the CIER and in the Anprolene AN75sterilizer. | Pass |
| Biocompatibility | Not direct or indirect patient-contacting devices;Non-toxic ingredients;Provides reasonable assurance for safety. | Pass |
| Endpoint ColorStability | Stable for at least 12 months at 20-25°C and 30-50% relative humidityaway from direct sunlight;Stability demonstrates reasonable assurance for effectiveness. | Pass |
| Shelf Life | Maintains performance specifications throughout the shelf life of 2 years. | Pass |
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The bench studies demonstrate that AN85/AN86 EO Indicators perform as intended to indicate that the devices have been exposed to ethylene oxide, and perform as safely and effectively as the legally marketed predicate device, the AN85/AN86 EO Indicators (K150644).
5.10 Device Comparison
AN85/AN86 EO Indicators used in the Anprolene AN75 Sterilizer are substantially equivalent to the AN85/AN86 EO Indicators (K150644) used in the EOGas 4 sterilizer. Both the subject and predicate indicators have the same intended use, design, and technical characteristics. A comparison between the indicators is listed in Table 5-3.
| Predicate AN85/AN86 EOIndicators (K150644) | Subject AN85/AN86 EOIndicators | Comparison | |
|---|---|---|---|
| Intended Use | Process indicator to indicateexposure to EOAdhesive-backed labels | Process indicator toindicate exposure to EOAdhesive-backed labels | Identical |
| SterilizationMethod | EOGas 4 sterilizer;100% EO process;3 hr EO exposure at 50±3°C | Anprolene AN75 sterilizer;100% EO process;12 hr EO exposure at 20-29°C | Difference does notalter safety oreffectiveness |
| Design | Indicator changes color whenexposed to EO | Indicator changes colorwhen exposed to EO | Identical |
| IndicatorAgent | pH indicator | pH indicator | Identical |
| DeviceMaterials | Plastic films;Plastic layer above andbelow the ink prevents directcontact with the ink. | Plastic films;Plastic layer above andbelow the ink preventsdirect contact with the ink. | Identical |
| EndpointColorChange | Yellow-green to blue color | Yellow-green to blue color | Identical |
| Technology | Chemical reactions with EOchange the pH and the colorof the indicator ink. | Chemical reactions withEO change the pH and thecolor of the indicator ink. | Identical |
| Performance | Type 1 process indicator | Type 1 process indicator | Equivalent |
Table 5-3. Comparison between AN85/AN86 EO Indicators and the predicate device
BASIS FOR DETERMINATION OF SUBSTANTIAL EQUIVALENCE:
Based on the intended use, technological characteristics, performance data, and nonclinical tests performed, the subject AN85/AN86 EO Indicators are substantially equivalent to, and are as safe and as effective as, the legally marketed predicate device, the AN85/AN86 EO Indicators used in the EOGas 4 sterilization system, cleared under K150644.
§ 880.2800 Sterilization process indicator.
(a)
Biological sterilization process indicator —(1)Identification. A biological sterilization process indicator is a device intended for use by a health care provider to accompany products being sterilized through a sterilization procedure and to monitor adequacy of sterilization. The device consists of a known number of microorganisms, of known resistance to the mode of sterilization, in or on a carrier and enclosed in a protective package. Subsequent growth or failure of the microorganisms to grow under suitable conditions indicates the adequacy of sterilization.(2)
Classification. Class II (performance standards).(b)
Physical/chemical sterilization process indicator —(1)Identification. A physical/chemical sterilization process indicator is a device intended for use by a health care provider to accompany products being sterilized through a sterilization procedure and to monitor one or more parameters of the sterilization process. The adequacy of the sterilization conditions as measured by these parameters is indicated by a visible change in the device.(2)
Classification. Class II (performance standards).