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510(k) Data Aggregation
(28 days)
Celerity 5 HP Biological Indicator (LCB052); Celerity 5 HP Challenge Pack (LCB059); Celerity 20 HP Biological
Celerity 5 HP Biological Indicator:
The Celerity 5 HP Biological Indicator (BI) is intended for routine monitoring of the following sterilizer cycles:
- Lumen, Non Lumen, Fast Non Lumen, Fast, Flexible and Specialty Cycles of the V-PRO 1, 1 Plus, maX, maX 2, 60 and s2 Low Temperature Sterilization Systems
- Standard and Advanced Cycles of the STERRAD® NX® Sterilizer with or without ALLClear®
- Standard, FLEX, Express and DUO Cycles of the STERRAD® 100NX® Sterilizer with or without ALLClear®.
When used in conjunction with the Celerity® Incubator, the Incubator provides a fluorescent result within 5 minutes.
Celerity 5 HP Challenge Pack:
The Celerity 5 HP Challenge Pack is intended for qualification testing of the V-PRO Low Temperature Sterilization System following installation, relocation, malfunctions or major repairs and for routine requalification testing.
The Challenge Pack is placed in an otherwise empty sterilizer chamber; a hospital-defined challenge load is not included.
The Challenge Pack is not intended for routine monitoring of V-PRO Sterilizers. It has been tested and validated solely for use in periodic testing of the Sterilizers.
Celerity 20 HP Biological Indicator
The Celerity 20 HP Biological Indicator (BI) is intended for routine monitoring of the following sterilizer cycles:
- Lumen, Non-Lumen, Fast Non Lumen, Fast, Flexible and Specialty Cycles of the V-PRO 1, 1 Plus, maX, maX 2, 60 and s2 Low Temperature Sterilization Systems.
- Standard and Advanced Cycles of the STERRAD® NX® Sterilizer with or without ALLClear
- Standard, FLEX, Express and DUO Cycles of the STERRAD® 100NX® Sterilizer with or without ALLClear®
When used in conjunction with the Celerity HP Incubator, the Celerity 20 HP BI provides a fluorescent result within 20 minutes.
Celerity 20 HP Challenge Pack
The Celerity 20 HP Challenge Pack is intended for qualification testing of the V-PRO® Low Temperature Sterilization System following installation, relocation, malfunctions or major repairs and for routine requalification testing.
The challenge pack is placed in an otherwise empty sterilizer chamber; a hospital-defined challenge load is not included.
The challenge pack is not intended for routine monitoring of V-PRO Sterilizers. It has been tested and validated solely for use in periodic testing of the Sterilizers.
Celerity 5 HP BI
The product is intended to monitor the vapor phased hydrogen peroxide sterilization cycles described in the indications for use. It produces an optical change (signal) that is detected by the STERIS proprietary reader, STERIS Celerity Incubator, within 5 minutes to confirm the viability of the biological indicator at the end of a sterilization process. The product consists of Geobacillus stearothermophilus spores and a defined nutrient media in a plastic vial. A reporter enzyme, which is produced by the organism, reacts with a fluorogenic substrate within the defined nutrient media to produce a fluorescent moiety.
Celerity 5 HP Challenge Pack
The Celerity 5 HP Challenge Pack is used in the sterile processing department, usually by service technicians or biomedical technicians to qualify the unit following installation, relocation, malfunctions or major repairs and for routine requalification testing. It consists of a Celerity 5 HP Biological Indicator, a Celerity HP Chemical Indicator, and a layer of absorptive foam within a Tyvek pouch.
The intended change to the devices is to update the secondary container and product labeling. Specifically, the clear cellophane wrapper around the product carton will be replaced by a clear, laminated pouch. Labeling on the carton and the Instructions for Use (IFU) will be updated to specify that the product must remain stored in its original laminated pouch to maintain the claimed shelf-life. Additionally, a storage disclaimer label will be added to the exterior of the pouch to notify users of this change. Finally, this submission is intended to establish a 3-month in-use shelf-life following pouch opening, not to exceed the original expiration date.
Celerity 20 HP BI
The product is intended to monitor the vapor phased hydrogen peroxide sterilization cycles described in the indications for use. It produces an optical change (signal) that is detected by the STERIS proprietary reader, STERIS Celerity Incubator, within 20 minutes to confirm the viability of the biological indicator at the end of a sterilization process. The product consists of Geobacillus stearothermophilus spores and a defined nutrient media in a plastic vial. A reporter enzyme, which is produced by the organism, reacts with a fluorogenic substrate within the defined nutrient media to produce a fluorescent moiety.
Celerity 20 HP Challenge Pack
The Celerity 20 HP Challenge Pack is used in the sterile processing department, usually by service technicians or biomedical technicians to qualify the unit following installation, relocation, malfunctions or major repairs and for routine requalification testing. It consists of a Celerity 5 HP Biological Indicator, a Celerity HP Chemical Indicator, and a layer of absorptive foam within a Tyvek pouch.
The intended change to these devices is to update the secondary container and product labeling. Specifically, the clear cellophane wrapper around the product carton will be replaced by a clear, laminated pouch. Labeling on the carton and the Instructions for Use (IFU) will be updated to specify that the product must remain stored in its original laminated pouch to maintain the claimed shelf-life. Additionally, a storage disclaimer label will be added to the exterior of the pouch to notify users of this change. Finally, this submission is intended to establish a 3-month in-use shelf-life following pouch opening, not to exceed the original expiration date.
The provided text describes premarket notification for biological indicators and doesn't involve an AI/ML powered medical device. Therefore, many of the requested criteria, such as "multi-reader multi-case (MRMC) comparative effectiveness study" or "number of experts used to establish ground truth", which are specific to AI/ML powered devices, are not applicable here.
However, I can extract information related to the acceptance criteria and the study proving the device meets those criteria, as much as applicable for a non-AI medical device.
Device: Celerity 5 HP Biological Indicator (LCB052) & Challenge Pack (LCB059), and Celerity 20 HP Biological Indicator (LCB044) & Challenge Pack (LCB045)
Type of Device: Sterilization Process Indicator (Biological Indicator - BI). These devices contain a specific type of spore (Geobacillus stearothermophilus) and media to confirm the effectiveness of a sterilization process. A positive result (fluorescent signal) indicates sterilization failure, while a negative result indicates successful sterilization.
1. Table of Acceptance Criteria and Reported Device Performance
The acceptance criteria and results are provided for two distinct product lines: Celerity 5 HP and Celerity 20 HP. Note that the "Result" for all tests is simply "PASS", indicating that the criteria were met.
For Celerity 5 HP Biological Indicator and Challenge Pack:
Test | Acceptance Criteria | Result |
---|---|---|
Reduced Incubation Time Testing | All BI lots will demonstrate 97% or greater positive growth results at 7 days as compared to the fluorescent result at less than or equal to 5-minutes | PASS |
Simulated Use Testing | All processed BIs shall be sterile following full cycle exposure sterilizer cycles. | PASS |
Cap Media Testing | All BIs will demonstrate a positive fluorescent signal in the fluorescent incubators. | PASS |
Stability Testing: Population | The mean initial population at the start of the stability study must be 1.0-4.0 x 10⁶ CFU/BI. At each subsequent time point, the mean population shall be 50-300% of the initial mean population. | PASS |
Stability Testing: D-value | D-value between 6 and 20 seconds. | PASS |
Stability Testing: Survival/Kill | Demonstration of one all survive time and one all kill time point. | PASS |
Stability Testing: RIT | All BI lots will demonstrate 97% or greater positive growth results at 7 days as compared to the fluorescent result at less than or equal to 5 minutes. | PASS |
Stability Testing: Media Testing | All BIs will demonstrate a positive fluorescent signal in the fluorescent incubators. | PASS |
For Celerity 20 HP Biological Indicator and Challenge Pack:
Test | Acceptance Criteria | Result |
---|---|---|
Reduced Incubation Time Testing | All BI lots will demonstrate 97% or greater positive growth results at 7 days as compared to the fluorescent result at less than or equal to 20 minutes | PASS |
Simulated Use Testing | All processed BIs shall be sterile following full cycle exposure sterilizer cycles. | PASS |
Cap Media Testing | All BIs will demonstrate a positive fluorescent signal in the fluorescent incubators. | PASS |
Stability Testing: Population | The mean initial population at the start of the stability study must be 1.0-4.0 x 10⁶ CFU/BI. At each subsequent time point, the mean population shall be 50-300% of the initial mean population. | PASS |
Stability Testing: D-value | D-value between 6 and 20 seconds. | PASS |
Stability Testing: Survival/Kill | Demonstration of one all survive time and one all kill time point. | PASS |
Stability Testing: RIT | All BI lots will demonstrate 97% or greater positive growth results at 7 days as compared to the fluorescent result at less than or equal to 20 minutes. | PASS |
Stability Testing: Media Testing | All BIs will demonstrate a positive fluorescent signal in the fluorescent incubators. | PASS |
2. Sample Size Used for the Test Set and Data Provenance
The document does not explicitly state the numerical sample size (e.g., number of BIs or challenge packs) used for each specific test (Reduced Incubation Time, Simulated Use, Cap Media, Stability testing). It refers to "All BI lots" for Reduced Incubation Time and "All processed BIs" for Simulated Use, and implicitly "BIs" for Stability Testing. This suggests a statistically relevant number of units from manufactured lots were tested.
- Data Provenance: The document does not specify the country of origin of the data. Given the "U.S. Food & Drug Administration" letterhead and the manufacturer's address in Ohio, USA, it is highly likely that the testing was conducted in the US.
- Retrospective or Prospective: The testing appears to be prospective as it's a pre-market submission to demonstrate the device meets performance criteria for clearance. Stability testing also inherently involves prospective observation over time.
3. Number of Experts Used to Establish the Ground Truth for the Test Set and the Qualifications of Those Experts
This concept is not applicable to this type of device. The "ground truth" for a biological indicator is determined by the biological and chemical reactions themselves (i.e., presence or absence of viable spores, or a color change in the chemical indicator), not by human expert interpretation of images or data. The determination of "sterile" or "non-sterile" from a biological indicator is a direct, objective measurement.
4. Adjudication Method for the Test Set
Not applicable. As noted above, the results of biological indicators are typically objective and determined by the physical/chemical properties and reactions, not by subjective human interpretation requiring adjudication.
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 not an AI/ML device nor one that involves human "readers" interpreting medical images or data.
6. If a Standalone (i.e., algorithm only without human-in-the-loop performance) was done
Not applicable. This is a physical, biological and chemical indicator device, not a software algorithm. The "Celerity Incubator" is an accessory that reads the fluorescent signal, it is not an AI algorithm.
7. The Type of Ground Truth Used
The ground truth for these devices is based on biological viability (presence or absence of viable Geobacillus stearothermophilus spores) for the biological indicator and chemical reaction (color change) for the chemical indicator, validated against recognized sterilization parameters (e.g., D-value, Survival Time, Kill Time). This is a direct measure of the effectiveness of the sterilization process.
8. The Sample Size for the Training Set
Not applicable. These are not AI/ML devices that require training sets. The "training" of these devices (i.e., their manufacturing and design) is based on established microbiological and sterilization science.
9. How the Ground Truth for the Training Set was Established
Not applicable, as there is no "training set" in the context of an AI/ML algorithm. The performance of these biological indicators relies on their inherent design and manufacturing quality, ensuring the spores exhibit the specified resistance characteristics and the media accurately detects their viability. This is established through rigorous quality control and adherence to relevant standards for biological indicators.
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(27 days)
Celerity 5 HP Biological Indicator (LCB052); Celerity 5 HP Challenge Pack (LCB059); Celerity 20 HP Biological
Celerity 5 HP Biological Indicator (LCB052), Celerity 5 HP Challenge Pack (LCB059), Celerity 20 HP Biological Indicator (LCB044), Celerity 20 HP Challenge Pack (LCB045)
Celerity 5 HP Biological Indicator
The Celerity 5 HP Biological Indicator (BI) is intended for routine monitoring of the following sterilizer cycles:
· Lumen, Non Lumen, Fast, Flexible and Specialty Cycles of the V-PRO 1, 1 Plus, maX, maX, maX, maX, maX, maX, maX 2, 60 and s2 Low Temperature Sterilization Systems
· Standard and Advanced Cycles of the STERRAD® NX® Sterilizer with or without ALLClear®
· Standard, FLEX, Express and DUO Cycles of the STERRAD® 100NX® Sterlizer with or without ALLClear®.
When used in conjunction with the Celerity® Incubator, the Incubator provides a fluorescent result within 5 minutes.
Celerity 5 HP Challenge Pack
The Celerity 5 HP Challenge Pack is intended for qualification testing of the V-PRO Low Temperature Sterilization System following installation, relocation, malfunctions or major repairs and for routine requalification testing. The Challenge Pack is placed in an otherwise empty sterilizer chamber; a hospital-defined chad is not included. The Challenge Pack is not intended for routine monitoring of V-PRO Sterilizers. It has been tested and validated solely for use in periodic testing of the Sterilizers.
Celerity 20 HP Biological Indicator
The Celerity 20 HP Biological Indicator (BI) is intended for routine monitoring of the following sterilizer cycles:
· Lumen, Non-Lumen, Fast, Flexible and Specialty Cycles of the V-PRO 1, 1 Plus, maX, maX 2, 60 and s2 Low Temperature Sterilization Systems.
· Standard and Advanced Cycles of the STERRAD® NX® Sterilizer with or without ALLClear
· Standard, FLEX, Express and DUO Cycles of the STERRAD® 100NX® Sterilizer with or without ALLClear® When used in conjunction with the Celerity HP Incubator, the Celerity 20 HP BI provides a fluorescent result within 20 minutes.
Celerity 20 HP Challenge Pack
The Celerity 20 HP Challenge Pack is intended for qualification testing of the V-PRO® Low Temperature Sterilization System following installation, relocation, malfunctions or major repairs and for routine requalification testing. The challenge pack is placed in an otherwise empty sterilizer chamber; a hospital-defined chaded. The challenge pack is not intended for routine monitoring of V-PRO Sterilizers. It has been tested and validated solely for use in periodic testing of the Sterilizers.
Celerity 5 HP BI
The product is intended to monitor the vapor phased hydrogen peroxide sterilization cycles described in the indications for use. It produces an optical change (signal) that is detected by the STERIS proprietary reader, STERIS Celerity Incubator, within 5 minutes to confirm the viability of the biological indicator at the end of a sterilization process. The product consists of Geobacillus stearothermophilus spores and a defined nutrient media in a plastic vial. A reporter enzyme, which is produced by the organism, reacts with a fluorogenic substrate within the defined nutrient media to produce a fluorescent moiety.
Celerity 5 HP Challenge Pack
The Celerity 5 HP Challenge Pack is used in the sterile processing department, usually by service technicians or biomedical technicians to qualify the unit following installation, relocation, malfunctions or major repairs and for routine requalification testing. It consists of a Celerity 5 HP Biological Indicator and a layer of absorptive foam within a Tyvek pouch.
Celerity 20 HP BI
The product is intended to monitor the vapor phased hydrogen peroxide sterilization cycles described in the indications for use. It produces an optical change (signal) that is detected by the STERIS proprietary reader, STERIS Celerity Incubator, within 20 minutes to confirm the viability of the biological indicator at the end of a sterilization process. The product consists of Geobacillus stearothermophilus spores and a defined nutrient media in a plastic vial. A reporter enzyme, which is produced by the organism, reacts with a fluorogenic substrate within the defined nutrient media to produce a fluorescent moiety.
Celerity 20 HP Challenge Pack
The Celerity 20 HP Challenge Pack is used in the sterile processing department, usually by service technicians or biomedical technicians to qualify the unit following installation, relocation, malfunctions or major repairs and for routine requalification testing. It consists of a Celerity 5 HP Biological Indicator and a layer of absorptive foam within a Tyvek pouch.
The provided document is a 510(k) summary for STERIS Corporation's Celerity 5 HP and Celerity 20 HP Biological Indicators and Challenge Packs. It details non-clinical tests conducted to demonstrate substantial equivalence to predicate devices, rather than a clinical study involving human readers or AI algorithms for diagnostic purposes.
Therefore, many of the requested criteria, such as "Sample size used for the test set and the data provenance," "Number of experts used to establish the ground truth," "Adjudication method," "MRMC comparative effectiveness study," and "Standalone (i.e. algorithm only without human-in-the-loop performance) was done," are not applicable to the information contained in this document. This document describes the performance of a physical medical device (Biological Indicator) intended to monitor sterilization cycles, not a software-based diagnostic tool or AI.
However, I can extract and present the relevant acceptance criteria and reported device performance from the provided tables.
Acceptance Criteria and Reported Device Performance
The document presents non-clinical performance testing for two sets of devices: Celerity 5 HP Biological Indicator/Challenge Pack and Celerity 20 HP Biological Indicator/Challenge Pack. The tables below combine the acceptance criteria and results for both, as they largely follow similar testing methodologies.
Celerity 5 HP Biological Indicator and Challenge Pack (Table 3)
Test | Acceptance Criteria | Reported Device Performance (Result) |
---|---|---|
Reduced Incubation Time Testing | All BI lots will demonstrate 97% or greater positive growth results at 7 days as compared to the fluorescent result at less than or equal to 5-minutes. | PASS |
Simulated Use Testing | All processed BIs shall be sterile following full cycle exposure sterilizer cycles. | PASS |
Bacteriostasis Testing | All BIs inoculated with 10-100 Geobacillus stearothermophilus spores will demonstrate growth. | PASS |
Cap Media Testing | All BIs will demonstrate a positive fluorescent signal in the fluorescent incubators. | PASS |
Stability Testing | Population: The mean initial population at the start of the stability study must be 1.0-4.0 x 10^6 CFU/BI. At each subsequent time point, the mean population shall be 50-300% of the initial mean population. | |
D-value: D-value between 6 and 20 seconds. | ||
Survival/Kill: Demonstration of one all survive time and one all kill time point. | ||
RIT: All BI lots will demonstrate 97% or greater positive growth results at 7 days as compared to the fluorescent result at less than or equal to 5 minutes. | ||
Media Testing: All BIs will demonstrate a positive fluorescent signal in the fluorescent incubators. | PASS | |
Specialty Cycle | All BIs will demonstrate a positive signal and growth after exposure to a sublethal cycle and a 20 hour aeration phase. | PASS |
Hold Time Testing | The hold time will be established using the longest hold time where there is no statistical or practical difference from the initial hold time (time 0). | 72 Hour Hold Time Established |
Celerity 20 HP Biological Indicator and Challenge Pack (Table 6)
Test | Acceptance Criteria | Reported Device Performance (Result) |
---|---|---|
Reduced Incubation Time Testing | All BI lots will demonstrate 97% or greater positive growth results at 7 days as compared to the fluorescent result at less than or equal to 20 minutes. | PASS |
Simulated Use Testing | All processed BIs shall be sterile following full cycle exposure sterilizer cycles. | PASS |
Bacteriostasis Testing | All BIs inoculated with 10-100 Geobacillus stearothermophilus spores will demonstrate growth. | PASS |
Cap Media Testing | All BIs will demonstrate a positive fluorescent signal in the fluorescent incubators. | PASS |
Stability Testing | Population: The mean initial population at the start of the stability study must be 1.0-4.0 x 10^6 CFU/BI. At each subsequent time point, the mean population shall be 50-300% of the initial mean population. | |
D-value: D-value between 6 and 20 seconds. | ||
Survival/Kill: Demonstration of one all survive time and one all kill time point. | ||
RIT: All BI lots will demonstrate 97% or greater positive growth results at 7 days as compared to the fluorescent result at less than or equal to 20 minutes. | ||
Media Testing: All BIs will demonstrate a positive fluorescent signal in the fluorescent incubators. | PASS | |
Specialty Cycle | All BIs will demonstrate a positive signal and growth after exposure to a sublethal cycle and a 20 hour aeration phase. | Pass |
Hold Time Testing | The hold time will be established using the longest hold time where there is no statistical or practical difference from the initial hold time (time 0). | 72 Hour Hold Time Established |
Study Details (Based on available information)
As noted, many elements of the request are not applicable as this document pertains to a physical biological indicator, not an AI or imaging diagnostic device.
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Sample size used for the test set and the data provenance: The document uses terms like "All BI lots" and refers to testing of the biological indicators themselves rather than a "test set" of patient data. Specific sample sizes for each non-clinical test are not explicitly stated in this summary. The data provenance is from non-clinical laboratory testing performed by STERIS Corporation. There is no indication of country of origin of data or whether it was retrospective/prospective in a clinical sense.
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Number of experts used to establish the ground truth for the test set and the qualifications of those experts: Not applicable. Ground truth for biological indicators in sterilization involves laboratory-based microbiology (e.g., presence or absence of spore growth in controlled environments), not expert human interpretation like radiologists for images.
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Adjudication method (e.g. 2+1, 3+1, none) for the test set: Not applicable. This is a non-clinical device performance study, not a human reader study requiring adjudication.
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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 not an AI-assisted diagnostic device.
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If a standalone (i.e. algorithm only without human-in-the-loop performance) was done: Not applicable. This is a physical biological indicator. The performance is assessed in a laboratory setting. The "Celerity Incubator" detects the fluorescent signal, but this is a device accessory, not an AI algorithm.
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The type of ground truth used: The ground truth for the biological indicators is based on the viability of Geobacillus stearothermophilus spores, determined by their ability to grow and produce a fluorescent signal (or lack thereof) under specific, controlled laboratory conditions after exposure to sterilization processes. This is a direct microbiological assessment.
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The sample size for the training set: Not applicable. This is a physical device that undergoes performance testing, not a machine learning model requiring a training set.
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How the ground truth for the training set was established: Not applicable. As above, there is no "training set" in the context of this device.
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(185 days)
Celerity 5 HP Biological Indicator; Celerity 5 HP Challenge Pack
Celerity 5 HP Biological Indicator: The Celerity 5 HP Biological Indicator (BI) is used for routine monitoring of the following sterilizer cycles: • Lumen, Non Lumen, Fast Non Lumen, Fast and Flexible Cycles of the V-PRO 1, 1 Plus, maX 2, 60 and s2 Low Temperature Sterilization Systems - · STERRAD® 100S Sterilizer (Default Cycle) • Standard and Advanced Cycles of the STERRAD® NX® Sterilizer with or without ALLClear® · Standard. FLEX. Express and DUO Cycles of the STERRAD® 100NX® Sterilizer with or without ALLClear®. When used in conjunction with the Celerity® Incubator, the Incubator provides a fluorescent result within 5 minutes.
Celerity 5 HP Challenge Pack: The Celerity 5 HP Challenge Pack is intended for qualification testing of the V-PRO Low Temperature Sterilization System following installation, relocation, malfunctions or major repairs and for routine requalification testing. The Challenge Pack is placed in an otherwise empty sterilizer chamber; a hospital-defined challenge load is not included. The Challenge Pack is not intended for routine monitoring of V-PRO Sterilizers. It has been tested and validated solely for use in periodic testing of the Sterilizers.
Celerity 5 HP Biological Indicator: The product is intended to monitor the vapor phased hydrogen peroxide sterilization cycles described in the indications for use. It produces an optical change (signal) that is detected by the STERIS proprietary reader, STERIS Celerity Incubator, within 5 minutes to confirm the viability of the biological indicator at the end of a sterilization process. The product consists of Geobacillus stearothermophilus spores and a defined nutrient media in a plastic vial. A reporter enzyme, which is produced by the organism, reacts with a fluorogenic substrate within the defined nutrient media to produce a fluorescent moiety.
Celerity 5 HP Challenge Pack: The CELERITY 5 HP Challenge Pack (pack), is used by healthcare providers for qualification testing of the V-PRO Low Temperature Sterilization Systems. The pack is placed in an otherwise empty sterilizer chamber; a hospital-defined challenge load is not included. The user places the pack into the V-PRO Sterilizer and performs a sterilization cycle. After cycle completion, the VERIFY HPU Chemical Indicator (CI) and the CELERITY 5 HP Biological Indicator (BI) contained in the pack are retrieved. The CI is assessed for a passing color change immediately and the BI can either be immediately activated or it can be held at room temperature for a maximum of 2 hours prior to activation. The BI is activated by sealing the vial and thus puncturing the cap to release the contained media. The activated BI is incubated at 55-60 ℃ in the CELERITY Incubator for a final determination of viability within 5 minutes of incubation.
Here's a summary of the acceptance criteria and the study that proves the device meets them, based on the provided text:
Device: Celerity 5 HP Biological Indicator and Celerity 5 HP Challenge Pack
1. Table of Acceptance Criteria and Reported Device Performance:
Test Name | Acceptance Criteria | Reported Performance |
---|---|---|
Viable Spore Population | Average population for each lot of 1.0 x 10^6 - 4.0 x 10^6 CFU/BI | Pass |
Resistance Characteristics Study (D-Value) | 2-20 seconds | Pass |
Resistance Characteristics Study (All Survive) | ≤ 4 seconds | Pass |
Resistance Characteristics Study (All Kill) | ≥ 6 minutes | Pass |
Carrier and Pack Material Growth Inhibition | All BIs inoculated with Geobacillus stearothermophilus spores demonstrate growth | Pass |
Holding Time Assessment | 120 minutes | Pass |
Signal Generation | All BIs will demonstrate a positive fluorescent signal | Pass |
Simulated Use Testing – V-PRO | All BIs processed in a full cycle will demonstrate a negative signal corresponding to a no-growth result upon seven day incubation. | Pass |
Simulated Use Testing – STERRAD | All BIs processed in a full cycle will demonstrate a negative signal corresponding to a no-growth result upon seven day incubation. | Pass |
Population after ALLClear Exposure | Each BI signal evaluation was positive following exposure to the All-Clear precondition treatment. The mean population of each BI exposed to the All-Clear precondition treatment was within 50-300% of the unexposed control mean population. | Pass |
Reduced Incubation Time | Study will demonstrate that 97% or greater of the positive samples at seven days also gave a positive signal at the claimed RIT time. | Pass |
Reduced Incubation Time – Engineering Mode | Study will demonstrate that 97% or greater of the positive samples at seven days also gave a positive signal. (Note: The table entry for "Engineering Mode" in the "Reported Performance" column only states "Pass", and the detailed criteria are repeated from the "Reduced Incubation Time", implying it aims to meet similar performance for the 5-minute read time correlation to the 20-minute result and 7-day growth.) | Pass |
Simulated Use Testing (Challenge Pack) | Demonstrate the pack shows passing results in worst-case load under worst-case sterilization conditions. | Pass |
Dose Response Testing (Challenge Pack) | The pack provides an equivalent or greater challenge to the claimed cycle than the biological model under worst-case conditions. | Pass |
2. Sample Size Used for the Test Set and Data Provenance:
The document primarily describes non-clinical tests performed to demonstrate substantial equivalence. It does not provide specific sample sizes for "test sets" in the context of human-involved studies (e.g., retrospective or prospective patient data). The evaluation appears to be based on laboratory testing of the biological indicators themselves.
- Sample Size: Not specified in terms of number of "cases" or patient data points. The tests likely involved multiple units of the biological indicator and challenge pack.
- Data Provenance: The studies are non-clinical, likely conducted in a laboratory setting by the manufacturer (STERIS Corporation). Therefore, there is no country of origin of patient data, nor is it retrospective or prospective in the medical imaging sense.
3. Number of Experts Used to Establish Ground Truth and Qualifications:
Not applicable. The "ground truth" for a biological indicator is based on microbiological assays (e.g., spore viability, D-value, kill time) and engineered test conditions, rather than expert interpretation of medical images or pathologies.
4. Adjudication Method for the Test Set:
Not applicable. As the tests are non-clinical and objective (e.g., measuring spore population, observing growth/no growth), there is no need for expert adjudication.
5. Multi-Reader Multi-Case (MRMC) Comparative Effectiveness Study:
Not applicable. This device is a biological indicator for monitoring sterilization processes, not a medical imaging or diagnostic device that involves human readers.
- Effect Size: Not applicable.
6. Standalone Performance (Algorithm Only without Human-in-the-Loop):
The device is a standalone biological indicator that produces a result (fluorescent signal) which is then read by the Celerity® Incubator. While humans initiate the process and interpret the incubator's output, the "performance" described in the tests (e.g., D-value, kill time, signal generation) refers to the intrinsic behavior of the biological indicator. In this sense, the tests demonstrate the standalone performance of the BI.
7. Type of Ground Truth Used:
The ground truth used is primarily microbiological and physical measurements based on established standards for biological indicators. This includes:
- Spore population counts: Direct enumeration of viable spores.
- D-value determination: A measure of the resistance of microorganisms to a sterilizing agent.
- Survival and kill times: Time points at which a specified percentage of organisms survive or are killed.
- Growth/no growth observations: The fundamental output of a biological indicator.
- Fluorescent signal detection: Objective detection by the incubator.
- Worst-case sterilization conditions: Established laboratory parameters to rigorously challenge the device's performance.
8. Sample Size for the Training Set:
Not applicable. This device is a physical biological indicator, not an AI/machine learning algorithm that requires a training set of data.
9. How the Ground Truth for the Training Set Was Established:
Not applicable (as it's not an AI/ML device).
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