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510(k) Data Aggregation
(151 days)
The Swift™ System is a surface-based device intended for the coagulation of soft tissue during non-invasive procedures.
The Swift™ System is not indicated for use in genital warts or cardiac procedures.
Specific Indication: Treatment of Common and Plantar Warts.
The swiftPro™ System is a surface-based device intended for the coagulation of soft tissue during non-invasive procedures.
The swiftPro™ System is not indicated for use in genital warts or cardiac procedures.
Specific Indication: Treatment of Common and Plantar Warts.
The Swift™ System is a microwave-based system intended to delivery energy through a surface contact applicator into targeted soft tissue for the purpose of coagulating (ablation) a pre-defined volume of tissue. The Swift™ System serves as a predicate device to the swiftPro™ System, which was originally cleared under 510(k) K222388. The swiftPro™ System is a handheld microwave generator designed to provide the same functionality as the Swift™ System in a more compact package.
The Swift™ System (SWF-SYS) consists of the following components:
- Swift™ Microwave Generator (SWF-GE01)
- Swift™ Applicator Handpiece (SWF-HP01)
- Swift™ Interconnect Cable (SWF-CA01)
- Swift™ Applicator Tip (SWF-AT01)
The Swift™ System was previously cleared under 510(k) K181941.
The swiftPro™ System (SWF-SPS) consists of the following components:
- swiftPro™ Handheld Microwave Generator (SWF-HAN01)
- swiftPro™ DC Power Cable (SWF-DCA01)
- swiftPro™ Cradle (SWF-CRA01)
- swiftPro™ Applicator Tips (SWF-AT02, SWF-AT03)
The swiftPro™ System was initially cleared under 510(k) K222388 and subsequently received updated clearance under K240518 to include the swiftPro™ Charging Dock (SWF-CHA01) and Battery Pack (SWF-BAT01) for cordless operation.
There have been no modifications to the design, principles of operation, or materials used in the Swift™ and swiftPro™ Systems. The clinical functionality of delivering treatment remains unchanged.
Here's an analysis of the provided information regarding the acceptance criteria and the study that proves the device meets those criteria:
1. Table of Acceptance Criteria and Reported Device Performance
The provided document details a non-inferiority clinical study comparing the Swift™ System to cryotherapy for the treatment of common and plantar warts. The primary effectiveness endpoint was "Clearance of all treated warts, each of which is defined as "resolved" or "not resolved" based on the classification by the blinded site investigator assessing the treated warts at three months post final treatment (up to 5 warts in total per subject)."
The acceptance criteria for non-inferiority are not explicitly stated as a numerical threshold (e.g., "non-inferiority margin of X%"). Instead, the study's goal was to demonstrate that the Swift System was not worse than cryotherapy by a significant amount. However, the study failed to meet its primary endpoint for non-inferiority due to insufficient data. Despite this, the effectiveness results were very close, and safety data was favorable for the Swift System.
Given the information, we can construct the following table for effectiveness:
| Acceptance Criteria (Effectiveness - Implied from Non-Inferiority Study) | Reported Device Performance (Swift System) | Reported Performance (Cryotherapy - Comparator) |
|---|---|---|
| Non-inferiority to cryotherapy in clearance of all treated warts at 3 months post final treatment. | 38.8% clearance rate | 38.6% clearance rate |
| Conclusion on Effectiveness: | The analysis showed that the primary endpoint for non-inferiority was inconclusive (p=0.158). From a statistical perspective, there was insufficient data to conclude non-inferiority. From a clinical perspective, the response rates were nearly identical. |
Safety Acceptance Criteria and Performance (Implicit - reasonable assurance of safety)
The document primarily highlights the safety profile of the Swift System compared to cryotherapy. The implicit acceptance criterion would be a reasonable assurance of safety, with no serious adverse events and a comparable or better safety profile than the predicate.
| Acceptance Criteria (Safety - Implicit) | Reported Device Performance (Swift System) | Reported Performance (Cryotherapy - Comparator) |
|---|---|---|
| No serious adverse events related to the device. | No serious adverse events reported. | N/A (no serious adverse events related to Cryotherapy device mentioned) |
| Safety profile comparable to or better than the predicate/gold standard. | Fewer reported adverse events overall (~40% vs ~60%). Significantly larger proportion of subjects reported zero adverse events (18% vs 3%). Lower incidence of specific adverse events (pain, blistering, pruritus, paraesthesia, discoloration, hypersensitivity). Less post-treatment pain. | Higher reported adverse events overall (~60%). Lower proportion of subjects reported zero adverse events (3%). Higher incidence of specific adverse events. More post-treatment pain. |
| No new risks identified that have not been previously considered or assessed. | No new risks identified. |
2. Sample Size Used for the Test Set and Data Provenance
- Test Set Sample Size:
- Randomized subjects: 119
- Evaluable Per Protocol Population (for primary endpoint): 93 subjects (49 in Swift System group, 44 in cryotherapy group)
- Data Provenance:
- Country of Origin: US
- Retrospective or Prospective: Prospective (Randomized, multi-site, open, parallel-group, controlled, blind-assessed clinical study).
3. Number of Experts Used to Establish the Ground Truth for the Test Set and Qualifications of Those Experts
The document states "blinded site investigator assessing the treated warts." The number of investigators and their specific qualifications (e.g., dermatologists, years of experience) are not specified in this summary.
4. Adjudication Method for the Test Set
The primary endpoint involved assessment by a "blinded site investigator." There is no explicit mention of an adjudication method (e.g., 2+1, 3+1 consensus) if there were disagreements among investigators, or if multiple investigators were used per patient. The phrasing "blinded site investigator" suggests a single investigator making the assessment at each site, blind to the treatment arm.
5. If a Multi-Reader Multi-Case (MRMC) Comparative Effectiveness Study Was Done, and the Effect Size
No, a Multi-Reader Multi-Case (MRMC) comparative effectiveness study was not done. This was a comparative clinical trial involving a device and a standard-of-care treatment, not an imaging-based "reader" study for diagnostic performance. Therefore, an effect size of human readers improving with AI vs. without AI assistance is not applicable here.
6. If a Standalone (i.e., algorithm only without human-in-the-loop performance) Was Done
No, a standalone algorithm performance study was not done. The device itself is a microwave ablation system, not an AI/software algorithm for diagnosis or interpretation. The clinical study evaluated the device's therapeutic effect with human operators.
7. The Type of Ground Truth Used
The ground truth for the primary effectiveness endpoint was based on a clinical assessment by a blinded site investigator, using specific criteria:
- lesion no longer visible, and
- return of dermatoglyphics to the affected area, and
- no pain on lateral compression.
This is a form of expert clinical assessment/consensus based on predefined objective and subjective criteria.
8. The Sample Size for the Training Set
The document describes a single pivotal clinical study to support the expanded indication. This study is the dataset used to evaluate the device against the expanded indication. There is no mention of a separate training set for an algorithm, as this is a physical device, not an AI algorithm requiring a training phase in the context of this 510(k) summary.
9. How the Ground Truth for the Training Set Was Established
As there is no explicit training set for an algorithm mentioned in this summary, the question of how its ground truth was established is not applicable in this context. The clinical study described served as the primary evidence for the device's safety and effectiveness for its intended use.
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(94 days)
Microwave Ablation Generator is indicated for the coagulation (ablation) of soft tissue. The device is not intended for cardiac use.
Microwave ablation is a kind of thermal ablation technology used in the treatment of soft tissue, utilizing electromagnetic waves in the microwave energy spectrum (300 MHz to 300 GHz) to produce tissue-heating effects. The oscillation of polar molecules produces frictional heating, ultimately generating tissue necrosis.
Microwave Ablation Generator consists of microwave source, pump, foot pedal etc. It is a software-controlled microwave generator that delivers the microwave energy at a working frequency of 2450 MHz and can meet various clinical needs of soft tissue ablation therapy. Microwave Ablation Generator delivers microwave energy to Microwave Ablation Antennas into the target tissue through Microwave Ablation Cable(sterile or non-sterile cable). When reaching the target temperature, the soft tissue will be damaged, leading to irreversible necrosis. The Microwave Ablation Temperature Probe is applied to monitor the temperature of the target location and to protect important organs and tissues in the periphery of the lesion from unexpected damage by microwave energy. Coagulated zones are monitored during treatment using appropriate imaging techniques.
The provided document is a 510(k) Premarket Notification from the FDA for a Microwave Ablation Generator. It focuses on demonstrating substantial equivalence to a predicate device rather than presenting a study to prove acceptance criteria for a new device's performance. Therefore, detailed information required by the request, such as sample sizes, data provenance, number and qualifications of experts, and ground truth establishment, is not present because this type of submission typically relies on non-clinical performance and equivalence to a previously cleared device.
However, I can extract the acceptance criteria for non-clinical performance tests and the reported performance, as well as general information about the submission.
Here's the information that can be extracted from the provided text:
1. A table of acceptance criteria and the reported device performance
| Acceptance Criteria / Test | Reported Device Performance |
|---|---|
| Electrical Safety as per IEC 60601-1 | Meets requirements of IEC 60601-1 |
| Electromagnetic Compatibility as per IEC 60601-1-2 | Meets requirements of IEC 60601-1-2 |
| Specific Performance as per IEC 60601-2-6 | Meets requirements of IEC 60601-2-6 |
| Software validation as per IEC 62304 and FDA Guidance | Embedded software meets requirements of IEC 62304 |
| Thermal Effects Test and Temperature Monitoring Test | Not explicitly stated as "meets criteria" but "Non-clinical performance data is provided in support of the substantial equivalence determination" implies satisfactory results. The table also states "Temperature monitoring features used to ensure safety" for both subject and predicate devices. |
2. Sample size used for the test set and the data provenance (e.g. country of origin of the data, retrospective or prospective)
This information is not provided in the document, as the submission is a 510(k) based on non-clinical performance and substantial equivalence, not a clinical study with patient samples. The document focuses on technical specifications and international standards compliance.
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)
This information is not provided. The submission relies on engineering and regulatory experts to ensure compliance with standards and equivalence to a predicate device. There is no mention of "ground truth" establishment in the context of expert consensus on medical images or diagnostic outputs.
4. Adjudication method (e.g. 2+1, 3+1, none) for the test set
This information is not provided. Adjudication methods are typically relevant for clinical studies involving human interpretation or outcome assessment, which is not the focus of this 510(k) submission.
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
There is no mention of an MRMC comparative effectiveness study, nor is the device an AI-assisted diagnostic tool. This device is a Microwave Ablation Generator.
6. If a standalone (i.e. algorithm only without human-in-the loop performance) was done
This concept is not applicable to the device. The "Microwave Ablation Generator" is a medical device for coagulation of soft tissue, not a standalone algorithm. Performance is assessed through compliance with technical standards and physical testing.
7. The type of ground truth used (expert consensus, pathology, outcomes data, etc)
The concept of "ground truth" in the context of medical imaging or diagnostic accuracy is not applicable to this device's submission. The "truth" for this device's performance is established by its compliance with recognized electrical safety, electromagnetic compatibility, specific performance standards, and software validation according to established engineering and regulatory guidelines. The "Thermal Effects Test" results would be compared against expected thermal ablation patterns or temperatures.
8. The sample size for the training set
This information is not provided and is not relevant for this type of device submission. The device is not an AI/ML algorithm that requires training data in the traditional sense.
9. How the ground truth for the training set was established
This information is not provided and is not relevant for this type of device submission.
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(88 days)
Microwave Ablation Antennas, in conjunction with the compatible Microwave Ablation Generator, is intended for coagulation (ablation) of soft tissue. This device is not intended for cardiac use.
Microwave ablation is a kind of thermal ablation technology used in the treatment of soft tissue, utilizing electromagnetic waves in the microwave energy spectrum (300 MHz to 300 GHz) to produce tissue-heating effects. The oscillation of polar molecules produces frictional heating, ultimately generating tissue necrosis. Microwave Ablation Antennas generally consist of the Microwave Ablation Antennas, Microwave Ablation Cable. This device is single-use and sterilized by EO. During ablation, Microwave Ablation Antennas will be punctured into the target tissue of the patients. In order to achieve the intended use, Microwave Ablation Antennas shall be connected with Microwave Ablation Generator which deliver microwave energy to Microwave Ablation Antennas through Microwave Ablation Cable (sterile or non-sterile cable). When reaching the target temperature, the soft tissue will be damaged leading to irreversible necrosis. Coagulated zones are monitored during treatment using appropriate monitoring techniques.
The provided text is a 510(k) summary for the Canyon Medical Inc. Microwave Ablation Antennas (K241825). This document focuses on demonstrating substantial equivalence to a predicate device for regulatory clearance, rather than presenting a clinical study to prove device performance against specific acceptance criteria in a human clinical trial setting.
Therefore, much of the requested information regarding acceptance criteria, study design, sample sizes, ground truth establishment, expert qualifications, and MRMC studies is not available in this type of regulatory submission. These details are typically found in clinical study reports.
However, based on the non-clinical test summary, we can infer some "acceptance criteria" related to the device's engineering performance and safety.
Here's a breakdown of the available information:
1. Table of Acceptance Criteria and Reported Device Performance
The document does not explicitly present a table of acceptance criteria for clinical performance and corresponding device performance data from a clinical study. Instead, it lists non-clinical tests and states that the "results from testing performed confirm the design requirements." This implies that the device met the acceptance criteria for each listed non-clinical test.
| Aspect | Acceptance Criteria (Implied from tests) | Reported Device Performance |
|---|---|---|
| Electrical Safety | Compliance with IEC 60601-1 standards for medical electrical equipment. | "Results from testing performed confirm the design requirements." (i.e., Met criteria) |
| Electromagnetic Compatibility (EMC) | Compliance with IEC 60601-1-2 standards for EMC of medical electrical equipment. | "Results from testing performed confirm the design requirements." (i.e., Met criteria) |
| Specific Performance | Compliance with IEC 60601-2-6 standards specific to Microwave Ablation Equipment. | "Results from testing performed confirm the design requirements." (i.e., Met criteria) |
| Thermal Effects & Temp. Monitoring | Performance as per FDA Guidance: Premarket Notification (510(k)) Submissions for Electrosurgical Devices for General Surgery. (Implies achieving expected thermal ablation zones and accurate temperature monitoring). | "Results from testing performed confirm the design requirements." (i.e., Met criteria) |
| Biocompatibility | Compliance with ISO 10993 series standards for biological evaluation of medical devices (for an externally communicating device with tissue for limited duration < 24h). | "Relevant tests are conducted as per ISO 10993 series standards." and "meet ISO 10993 biocompatibility requirements." (i.e., Met criteria) |
| Package Validation | Maintenance of sterility and integrity per ISO 11607-1 and ISO 11607-2. | "The integrity performance as per ISO 11607-1 and ISO 11607-2 is carried out." (Implies Met criteria, as no issues are reported). |
| Transport | Packaging integrity maintained after compression, vibration, and shock tests. | "The result indicates that packaging is not damaged." (i.e., Met criteria) |
| Shelf Life | Device functionality and safety maintained after accelerated aging equivalent to 3 years. | "The test results demonstrate that the aged samples complied with the pre-determined acceptance criteria." (i.e., Met criteria) |
| EO/ECH Residual | Compliance with allowable limits for Ethylene Oxide (EO) and Ethylene Chlorohydrin (ECH) residuals as per ISO 10993-7. | "The results meet the requirements." (i.e., Met criteria) |
2. Sample Size Used for the Test Set and Data Provenance
- Test Set Sample Size: Not applicable in the context of a clinical test set. The reported tests are non-clinical (laboratory/bench testing). The sample sizes for these non-clinical tests (e.g., number of antennas tested for electrical safety) are not specified in this summary.
- Data Provenance: The listed tests are non-clinical, conducted by the manufacturer (Canyon Medical Inc.) or authorized testing facilities, likely in the People's Republic of China, where the company is based. The data is thus internal, prospective non-clinical testing.
3. Number of Experts Used to Establish the Ground Truth for the Test Set and Qualifications of Those Experts
Not applicable. This is a non-clinical submission. Ground truth, in a clinical sense (e.g., disease presence), is not established for this type of testing. The "ground truth" for non-clinical tests is adherence to established engineering and safety standards.
4. Adjudication Method for the Test Set
Not applicable. This is a non-clinical submission, not involving human readers or clinical endpoints 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 submission is for a medical device (Microwave Ablation Antennas), not an AI/software device intended for diagnostic interpretation or to assist human readers.
6. If a Standalone (i.e., algorithm only without human-in-the-loop performance) Was Done
Not applicable. This submission is for a medical device (Microwave Ablation Antennas), not an AI/software device.
7. The Type of Ground Truth Used
For the non-clinical tests, the "ground truth" is typically defined by:
- Compliance with recognized consensus standards: (e.g., IEC 60601-1 for electrical safety, ISO 10993 for biocompatibility).
- Pre-determined design specifications and requirements: The device's performance is measured against its own established engineering specifications (e.g., for power delivery, temperature profile, mechanical integrity).
8. The Sample Size for the Training Set
Not applicable. This is a medical device, not a machine learning or AI algorithm requiring a training set.
9. How the Ground Truth for the Training Set Was Established
Not applicable. As above, this is a medical device, not an AI algorithm.
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(150 days)
IntelliBlate Microwave Ablation System:
The IntelliBlate Microwave Ablation System is intended for coagulation (ablation) of soft tissue. The IntelliBlate Microwave Ablation System is not intended for use in cardiac procedures.
IntelliBlate Ximitry Probe Assembly:
The IntelliBlate Ximitry Probe Assembly, used with the IntelliBlate Microwave Ablation System is intended for coagulation (ablation) of soft tissue.
The IntelliBlate Ximitry Probe Assembly is not intended for use in cardiac procedures.
The IntelliBlate Microwave Ablation System is a software-controlled microwave therapy delivery system with graphical user interface and hardware to control and monitor the therapy delivered to the target tissues.
The system consists of a 2.45 GHz microwave generator (console) with an integrated peristaltic pump assembly for coolant fluid delivery, a coolant Fluid Mount and an optional mobile cart for the console. Accessories for the system include IntelliBlate Ximitry Probe Assembly - a sterile, single-use disposable microwave ablation assembly with ablation probes and a cassette for coolant fluid tubing (closed cooling circuit).
The provided text does not contain detailed acceptance criteria for the IntelliBlate Microwave Ablation System that would typically be found in a clinical study report or a more extensive submission. The document primarily focuses on demonstrating substantial equivalence to predicate devices through technical comparisons and non-clinical testing summaries.
However, based on the information provided, we can infer some general acceptance criteria related to safety and performance, and describe the studies conducted as reported in the "Performance Data" section.
Here's an attempt to structure the information based on the provided text, acknowledging the limitations in detail for many of the requested points:
Implicit Acceptance Criteria and Reported Device Performance
| Acceptance Criteria (Inferred from Performance Data) | Reported Device Performance (as stated in the document) |
|---|---|
| Functional Design and Performance: Device meets established design criteria. | The subject devices successfully completed functional testing. |
| Ablation Performance in Ex-vivo Tissues: Ablation performance is substantially equivalent to predicate devices in various tissues. | Ex-vivo testing of the devices at single, double, and track ablation settings in porcine liver, kidney, and muscle demonstrated that the differences in design and system characteristics do not affect the ablation performance of the subject device in comparison to the predicate device. |
| Usability and Performance (Acute Animal Model): Devices are usable and perform as expected in living tissue models. | Acute GLP studies validated usability and performance of the devices on porcine soft tissue models. |
| Reliability: Device maintains consistent operation over time. | The subject devices successfully completed reliability testing. |
| Electrical Safety: Device complies with relevant electrical safety standards. | The IntelliBlate Microwave Ablation System and its accessories comply with applicable IEC 60601 series of standards: IEC 60601-1, IEC 60601-1-6, IEC 60601-2-6, and IEC 60601-1-2. |
| Electromagnetic Compatibility: Device complies with relevant electromagnetic compatibility standards. | The IntelliBlate Microwave Ablation System and its accessories comply with applicable IEC 60601 series of standards: IEC 60601-1, IEC 60601-1-6, IEC 60601-2-6, and IEC 60601-1-2. |
| Sterility: Ximitry Probe Assembly achieves a minimum sterility assurance level of 10^-6. | Ximitry Probe Assembly is sterilized utilizing 100% ethylene oxide gas to ensure a minimum sterility assurance level of 10^-6 in accordance with ISO 11135, ISO 10993-7, ISO 11138-1, ISO 11737-1, and ISO 11737-2. |
| Software Verification: Software functions are verified according to medical device software standards and FDA guidance. | Software verification was conducted in accordance with IEC 62304 and FDA guidance "Content of Premarket Submissions for Device Software Functions." |
| Cybersecurity: Cybersecurity requirements are assessed and addressed per FDA guidance. | Cybersecurity requirements were assessed per FDA guidance's "Cybersecurity in Medical Devices: Quality System Considerations and Content of Premarket Submissions, Postmarket Management of Cybersecurity in Medical Devices." |
| Thermal Effects and Temperature Monitoring: Thermal performance is substantially equivalent to predicate devices and monitoring is effective. | Comparison of thermal effects between IntelliBlate Microwave Ablation System and its predicate demonstrated that the performance of the subject device is substantially equivalent to the predicate device. Thermal effects and temperature monitoring testing were completed in accordance with FDA Guidance. |
| Biocompatibility: Patient-contacting components are biocompatible. | Biocompatibility testing of the Ximitry Probe Assembly in accordance with ISO 10993-1 demonstrated that the patient-contacting components are biocompatible. |
| Packaging Integrity and Shelf Life: Packaging maintains integrity and device remains viable for its intended shelf life. | Packaging integrity and shelf-life testing was performed in accordance with ISO 11607-1 and ISO 11607-2. |
Here's a breakdown of the other requested information based on the provided text. Please note that many of these details are not explicitly stated in the summary document.
2. Sample size used for the test set and the data provenance:
- Test set sample size: Not explicitly stated for specific non-clinical tests. For the ex-vivo ablation performance study, it mentions testing in "porcine liver, kidney and muscle," but no specific numbers of samples or experimental runs are provided.
- Data provenance:
- Ex-vivo ablation performance: Porcine tissues. Origin of the pigs not specified.
- Acute animal testing: Porcine soft tissue models. Conducted in accordance with GLP Regulations (21 CFR Part 58) in the United States.
3. Number of experts used to establish the ground truth for the test set and the qualifications of those experts:
- This information is not provided in the document. The studies mentioned (ex-vivo, animal GLP) would likely involve trained personnel or researchers, but their specific qualifications or role in establishing "ground truth" (e.g., assessing ablation zones) are not described. The document primarily focuses on engineering and animal model performance rather than human expert interpretation of results.
4. Adjudication method for the test set:
- This information is not provided in the document. Given the nature of the non-clinical and animal studies described, a formal adjudication method (like 2+1 or 3+1 often used for diagnostic AI) is very unlikely to have been applied. The evaluation would be based on direct measurements and observations by the researchers.
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:
- No, an MRMC comparative effectiveness study was not done. The IntelliBlate Microwave Ablation System is a hardware-based therapeutic device, not an AI diagnostic or assistance tool for human readers. Therefore, this type of study is irrelevant to this device.
6. If a standalone (i.e. algorithm only without human-in-the-loop performance) was done:
- This device is a physical system for microwave ablation. The "software" mentioned in the document is for controlling the device's functions and user interface, not for standalone diagnostic or interpretive performance. Therefore, the concept of "standalone (algorithm only)" as it applies to AI diagnostics is not applicable here. The device's performance is inherently "standalone" in its therapeutic action, but this is not an algorithm acting independently of human control.
7. The type of ground truth used:
- For Ex-vivo Ablation Performance: The "ground truth" would be the actual measured ablation zone characteristics (e.g., volume, size, shape) in the porcine tissues, determined by direct observation or histological analysis post-ablation.
- For Acute Animal Testing: The "ground truth" would be the observed acute effects of ablation in porcine soft tissues, assessed through direct observation, physiological measurements, and potentially necropsy/histopathology.
- For Sterilization, Biocompatibility, Electrical Safety, etc.: The "ground truth" is adherence to specified standards and objective measurements (e.g., sterility assurance level, physical/chemical properties, electrical performance).
8. The sample size for the training set:
- This information is not applicable in the context of the studies described. The device is a microwave ablation system, and the testing described (functional, ex-vivo, animal, electrical, etc.) are verification and validation studies against pre-defined engineering and safety criteria, not training of a machine learning model.
9. How the ground truth for the training set was established:
- This information is not applicable for the reasons stated in point 8. There is no mention of a "training set" for a machine learning model. The "training" that occurs is in the development and refinement of the device's design and operational parameters based on engineering principles and iterative testing.
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(69 days)
The Temperature Sensor Probe, used with Varian ablation systems, is intended for monitoring tissue temperature near the ablation site.
Temperature Sensor Probe is an optional accessory designed for use with compatible Varian ablation systems. Principal components of the temperature sensor probe include:
- Needle
- Handle
- Lead cable and connector
The provided text describes the regulatory clearance of a Temperature Sensor Probe (ABL-18TP20) for use with Varian ablation systems for monitoring tissue temperature. The submission focuses on demonstrating substantial equivalence to a predicate device, the Emprint™ Ablation System with Thermosphere Technology: K200796, specifically the Ablation Remote Temperature Probe (RTP20).
Here's an analysis of the acceptance criteria and study information:
Acceptance Criteria and Reported Device Performance
| Feature/Characteristic | Acceptance Criteria (Predicate Device K200796, RTP20) | Reported Device Performance (Subject Device: Temperature Sensor Probe) |
|---|---|---|
| Intended Use/Indications for Use | Monitoring tissue temperature at or near the ablation site. | Monitoring tissue temperature near the ablation site. |
| Operating Principle | Measures tissue temperature in real time via a thermocouple within the tip of the probe. | Measures tissue temperature in real time via a thermocouple within the tip of the probe. |
| Product code, FDA regulation, class | NEY, 21 CFR 878.4400, Class II | NEY, 21 CFR 878.4400, Class II |
| Prescription (Rx only) | Yes | Yes |
| Optional Accessory | Yes | Yes |
| Measuring Site | At or near ablation site | Tissue near ablation site |
| Temperature Range (Accuracy) | 37°C - 60°C (±1.5°C) | 10°C - 60°C (±2°C) |
| Thermocouple-based sensor at tip | Yes | Yes |
| Signal Processing & Display | Real-time, continuous display of tissue temperature. | Real-time, continuous display of tissue temperature. |
| Tissue Contact per ISO 10993-1 | External communicating device, in contact with tissue/bone/dentin and limited contact duration (A) (<24 hours). | External communicating device, in contact with tissue/bone/dentin and limited contact duration (A) (<24 hours). |
| Rigid Construction | Yes | Yes |
| Needle Shaft length | 20cm | 20cm |
| Needle Gauge (inserted in tissue) | 18G Cannula with 20.5G needle. | 18G |
| Needle Thermocouple | Soldered at the tip | Soldered at the tip |
| Patient Contacting Materials | Stainless Steel (needle), TPV (lead cable), ABS (handle). | Stainless Steel (needle), PVC (lead cable), ABS (handle). |
| Thermocouple Type | T-Type | T-Type |
| Safety Standard Compliance | IEC 60601-1, 60601-1-6, 60601-2-6, 60601-1-2 | IEC 60601-1, 60601-1-6, IEC 60601-2-6, IEC 60601-1-2 |
| Biocompatibility | Evaluated by ISO 10993-1 | Evaluated by ISO 10993-1 |
| Software | No | No |
| Device Usage | Single-use, disposable, optional accessory | Single-use, disposable, optional accessory |
| Sterilization | ETO | ETO |
| Packaging integrity and shelf-life | Complies with ISO 11607-1 and ISO 11607-2 | Complies with ISO 11607-1 and ISO 11607-2 |
Explanation of "Differences" for key criteria:
- Temperature Range (Accuracy): The subject device has a wider temperature range (10-60°C vs 37-60°C) and a slightly lower accuracy (±2°C vs ±1.5°C). The document states this is "Similar performance specifications" and notes that the compatible ablation system rounds reported temperature to the nearest integer for usability, implying this difference is acceptable.
- Needle Gauge (inserted in tissue): While both effectively result in an 18G insertion, the subject device uses a thicker-wall 18G needle directly, eliminating the need for a separate cannula and stylet, which the predicate device uses with a thinner 20.5G needle inside an 18G cannula. This is deemed "Similar" in overall gauge size.
- Probe handle with PCBA: The subject device has a PCBA in the handle for analog-to-digital signal conversion, whereas the predicate performs this in the console. This is a "Different design" but ultimately serves the same function of displaying real-time temperature.
- Lead Cable Outer Jacket: Different polymers (PVC vs TPV), but stated as "thermoplastic elastomer similar to the predicate device."
- Packaging: Different configurations (Tyvek pouch in cardboard box vs thermoform tray and Tyvek lid in SBS carton), noted as "Different packaging (less footprint)."
Study Information
-
Sample sizes used for the test set and the data provenance (e.g. country of origin of the data, retrospective or prospective):
- The document implies that testing for "accuracy of temperature monitoring" involved side-by-side testing of the subject and predicate devices. However, specific numerical sample sizes for these tests are not provided.
- Data Provenance: The studies are described as "non-clinical testing" and "non-clinical animal testing." No country of origin is specified for these tests. The animal testing was conducted on "porcine soft tissue models." These are likely prospective studies as they involve testing the new device.
-
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/Not provided. The testing described is primarily focused on physical and electrical device performance, temperature accuracy, and biocompatibility, not on expert interpretation of medical images or diagnostic outcomes. Therefore, no experts were explicitly used to establish "ground truth" in the manner relevant to image-based diagnostic AI.
-
Adjudication method (e.g. 2+1, 3+1, none) for the test set:
- Not applicable. This concept typically applies to studies where multiple readers interpret cases and their discrepancies need to be resolved for ground truth. The studies for this device are technical performance tests, not reader studies.
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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:
- No, an MRMC comparative effectiveness study was not done. This device is a temperature sensor probe, an accessory for ablation systems. It does not involve AI or human interpretation of data in a diagnostic context that would warrant an MRMC study.
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If a standalone (i.e. algorithm only without human-in-the-loop performance) was done:
- The device "does not contain software" that performs analytical functions. The testing focused on the physical device's performance, such as temperature accuracy. Therefore, "standalone" algorithm performance in the typical AI sense is not applicable.
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The type of ground truth used (expert consensus, pathology, outcomes data, etc.):
- For the non-clinical testing of temperature monitoring, the ground truth would be established by calibrated reference standards or laboratory-controlled conditions (e.g., precise temperature baths with highly accurate reference thermometers).
- For biocompatibility, the ISO 10993-1 standard provides the framework for establishing ground truth regarding material safety.
- For animal testing, the ground truth would be directly measured tissue temperature in the porcine model using reference temperature measurement methods.
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The sample size for the training set:
- Not applicable/Not provided. This device does not use AI/machine learning algorithms that require a training set.
-
How the ground truth for the training set was established:
- Not applicable. As the device does not use AI/machine learning, no training set or ground truth for such a set was established.
In summary, the FDA clearance for the Varian Temperature Sensor Probe is based on a demonstration of substantial equivalence through non-clinical performance testing, including accuracy of temperature monitoring, biocompatibility, electrical safety, sterilization, and packaging integrity. The nature of this device (a physical accessory for temperature measurement) means that many of the typical AI/ML study components (like expert ground truth, MRMC studies, or training sets) are not relevant or applicable.
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(60 days)
The swiftPro™ System is a surface-based device intended for the coagulation of soft tissue during non-invasive procedures.
The swiftPro™ System is not indicated for use in cardiac procedures.
The core swiftPro™ System, comprising the hand-held microwave generator (SWF-HAN01), DC power cable (SWF-DCA01), cradle (SWF-CRA01), and applicator tips (SWF-AT03), has previously received FDA clearance under K222388. This new 510(k) application has been submitted to incorporate optional accessories: the Battery Pack (SWF-BAT01), Charqing Dock (SWF-CHA01), and Charging Dock DC power adaptor (SWF-DCA02) for cordless operation.
The clinical functionality of delivering treatment via the swiftPro™ System remains unchanged. The only distinction is the introduction of an additional potential energy source. The power is supplied to swiftPro™ system by either a (external) medical-grade AC-DC adaptor with direct connection to the rear panel of the hand-held microwave generator or via a removable, rechargeable (optional) battery pack.
There haven't been any alterations to the design, or the material used in the swiftPro™ hand-held microwave generator. The operation of the subject device follows the same steps as the predicate device. The addition of the accessories does not have any effect on the mode of operation.
The provided text is a 510(k) Summary for a medical device called the "swiftPro™ System." This document is part of a premarket notification to the FDA to demonstrate substantial equivalence to a legally marketed predicate device.
After reviewing the document, there is no mention of an acceptance criteria table, device performance metrics (like sensitivity, specificity, accuracy, etc.), or any study involving human readers or experts for establishing ground truth. The submission is primarily focused on demonstrating the substantial equivalence of the swiftPro™ System with added accessories (Battery Pack, Charging Dock) to its previously cleared version (K222388).
The document details:
- Device Description: The swiftPro™ System is an electrosurgical cutting and coagulation device, specifically a microwave ablation system for soft tissue coagulation during non-invasive procedures. The new submission is for optional accessories (battery pack and charging dock) that allow for cordless operation. The core functionality and hand-held microwave generator remain unchanged from the predicate device.
- Comparison to Predicate Device: The submission explicitly states that the swiftPro™ hand-held microwave generator is identical to that in the predicate device. The primary change is the introduction of an additional energy source (battery).
- Performance Data: The performance data primarily consists of bench testing to demonstrate that the new power options do not negatively impact the device's performance. It also includes compliance with various standards related to biocompatibility, electrical safety, electromagnetic compatibility, software verification/validation, cybersecurity, and human factors/usability engineering.
Therefore, since the request is to "Describe the acceptance criteria and the study that proves the device meets the acceptance criteria" for a diagnostic or AI-assisted device, and the provided text describes an electrosurgical device with a focus on hardware modifications and safety/performance standards, much of the requested information (like sensitivity/specificity, MRMC studies, expert ground truth, etc.) is not applicable or not present in this type of 510(k) submission.
Attempting to answer based on the provided text, while acknowledging the limitations:
-
A table of acceptance criteria and the reported device performance:
The document does not explicitly provide a table of acceptance criteria with corresponding performance numbers in the way one would for a diagnostic device (e.g., sensitivity, specificity). Instead, the "acceptance criteria" are implied by compliance with various medical device standards and the demonstration of "substantial equivalence" through bench testing. The key "performance" demonstrated is that the addition of battery power does not alter the clinical functionality or safety/effectiveness of the microwave energy delivery compared to the predicate device.Acceptance Criteria (Implied) Reported Device Performance (Summary from text) Biocompatibility Compliance (ISO10993) Performed and complies with Cytotoxicity, Sensitisation, Irritation, Systemic toxicity, Pyrogenicity. Note: SWF-BAT01 and SWF-CHG01 are not designed for patient contact, but their materials (Cycoloy HC1204 HF Resin) are biocompatible and same as hand-held microwave generator & applicator tip. Electrical Safety & EMC Compliance (IEC 60601-1, -2-6, -1-2, IEC 62133-2) System and accessories comply with all applicable medical electrical equipment standards for safety and essential performance, specifically mentioning these IEC standards. The additional accessories comply with electrical safety and IEC 60601 requirements. Software V&V Compliance (IEC 62304, FDA Guidance) Software and firmware updated to accommodate battery functions, in accordance with IEC 62304 and FDA guidance. This implies successful verification and validation. Cybersecurity Assessment Assessment to mitigate cybersecurity vulnerabilities completed. (Note: Device is not networked, no OTS software for internet connection). Human Factors & Usability Engineering Compliance (ANSI/AAMI HE75, IEC 60601-1-6, IEC 62366-1, FDA Guidance) System and accessories comply with applicable requirements of these standards. Performance Equivalence with various power options Bench testing in ex vivo tissue demonstrated performance equivalence when powered by battery vs. wired options. Assessment of impact of battery charge levels on performance was carried out (CN-901 CAIRN Power Source Bench Equivalence Test Report assesses performance at various charge levels). The bench testing proves the swiftPro™ System and Accessories performs substantially equivalent to the predicate device. Mechanical & Material Equivalence (for core device) The hand-held microwave generator is identical to the predicate in materials and design. Dimensions and weight are unchanged for the core unit; new accessories have documented dimensions/weight. Applicator tip functionality and material composition are unchanged. Clinical Functionality Preservation The clinical functionality of delivering treatment via the swiftPro™ System remains unchanged with the addition of battery power. The same frequency and magnitude of microwave energy are delivered. Indications for Use Preservation Indications for use are identical to the predicate device. -
Sample sizes used for the test set and the data provenance:
The document mentions "bench testing in ex vivo tissue" but does not specify the sample size for this testing. It refers to a "CN-901 CAIRN Power Source Bench Equivalence Test Report" where further details might be found, but these are not in the provided text.
Data Provenance: The testing appears to be primarily laboratory/bench testing rather than clinical data from a specific country. It is not an AI/diagnostic study, so terms like "retrospective or prospective" don't directly apply in the usual sense. -
Number of experts used to establish the ground truth for the test set and the qualifications of those experts:
This question is not applicable. The device is an electrosurgical tool, not a diagnostic AI. "Ground truth" in this context would likely refer to engineering specifications and performance benchmarks, not medical diagnoses established by experts. -
Adjudication method (e.g., 2+1, 3+1, none) for the test set:
Not applicable, as this is for diagnostic interpretations, not a medical device's physical/electrical performance. -
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, nor does it involve human readers in an interpretative capacity. -
If a standalone (i.e. algorithm only without human-in-the loop performance) was done:
Not applicable. This device does not have a standalone AI algorithm for performance evaluation. Its "performance" refers to how it delivers microwave energy and its safety as a physical device. -
The type of ground truth used (expert consensus, pathology, outcomes data, etc.):
For this type of device, the "ground truth" for performance testing (bench testing) would be established by validated measurement techniques against pre-defined engineering and safety specifications (e.g., power output, temperature, electrical safety limits). For instance, for power output, the ground truth would be what an independent, calibrated power meter measures. -
The sample size for the training set:
Not applicable. This device does not use machine learning in a way that would require a "training set" for an AI model. Its software/firmware updates accommodate hardware changes, implying traditional software engineering verification and validation, not AI model training. -
How the ground truth for the training set was established:
Not applicable. As there's no training set for an AI model, there's no ground truth to establish for it.
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(115 days)
The Emprint™ ablation system is intended for use in percutaneous, and intraoperative coagulation (ablation) of soft tissue, including partial or complete ablation of non-resectable liver tumors.
The Emprint™ ablation system is not intended for use in cardiac procedures.
The Emprint™ ablation system overlapping technique is only intended for use in the liver.
The Emprint™ Ablation System with Thermosphere™ Technology, Covidien's microwave ablation system, was released for commercial distribution in the United States in April 2014.
The Emprint™ Ablation System is a microwave-based ablation system intended to deliver energy through an antenna inserted into soft tissue for the purpose of coagulating (ablating) a defined volume of that tissue. The Emprint™ Ablation System utilizes a 2450 MHz 100W, or 150W generator to deliver power to a single microwave ablation antenna. The Emprint™ Ablation 100W Generator is composed of analog and digital circuits with no software or firmware. The Emprint™ Ablation 150W Generator utilizes software and firmware, however both generators' settings are controlled in the same fashion. Emprint™ Ablation Generators provide for user setting of ablation time (0-10 minutes) and ablation power (5 to 150W). With an optional temperature probe, the ablation generators can be set to monitor the temperature of a desired target and to automatically shut the generator off when the target reaches a pre-set temperature.
The Emprint™ Ablation System uses circulating room temperature normal saline to cool the non-radiating portion of the antenna shaft and to provide a more consistent ablation zone. The normal saline is pumped from an IV bag through the antenna shaft and back to the IV bag in a closed system. No saline is in contact with the patient.
The 510(k) Cleared Emprint™ Ablation System consists of the following components:
- Emprint™ Ablation Generator (2450 MHz) ●
- Emprint™ HP Ablation Generator (2450 MHz) .
- EmprintTM Percutaneous Antenna (sterile, single use) ●
- Emprint™ Ablation Reusable Cable ●
- Emprint™ Ablation Pump ●
The system also includes the following optional equipment/accessories:
- . Emprint™ Ablation Cart (with Isolation Transformer)
- Emprint™ HP Ablation Cart (with Isolation Transformer)
- Ablation Footswitch ●
- Remote Temperature Probe (sterile, single use) ●
The system must be used with a standard IV bag of sterile normal saline (not provided with the system).
The provided text does not contain information about the acceptance criteria or a study that proves a device (specifically an AI/machine learning device) meets acceptance criteria, as the Emprint Ablation System is a microwave ablation system, not an AI/machine learning device. The 510(k) submission for the Emprint Ablation System describes updates to the instructions for use (IFU) to include "overlapping" and "ramp-up" ablation techniques, which were already observed in published literature and clinician practice.
Therefore, I cannot fulfill the request to describe the acceptance criteria and study proving the device meets them for an AI/machine learning device based on the given input, as the device in question is a traditional medical device and the submission focuses on updating its IFU, not on AI/ML performance.
The "Performance Data" section (9.9) explicitly states:
- "Clinical Studies in human subjects were not required to demonstrate the performance and safety of the Emprint Ablation System with Thermosphere Technology." (9.9.2)
- "Studies or testing in animal subjects were not required to demonstrate the performance and safety of the Emprint Ablation System with Thermosphere Technology." (9.9.3)
- Bench testing was conducted to generate zone charts for updated techniques (9.9.1). This is a standard ex-vivo engineering characterization, not a clinical study involving AI/ML methods or human readers.
None of the points outlined in the prompt (sample size for test set, data provenance, number of experts for ground truth, adjudication method, MRMC study, standalone performance, type of ground truth, training set sample size, ground truth for training set) are relevant or discussed in the provided document, as it pertains to a physical medical device and not an AI/ML system.
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(126 days)
The microwave ablation system is indicated for soft tissue coagulation (ablation) by healthcare professionals in healthcare facilities. Microwave ablation system is not intended for cardiac use.
Sterile Microwave Ablation Probe is used with Microwave Ablation Device, which is indicated for soft tissue coagulation (ablation) by healthcare professionals in healthcare facilities. Sterile Microwave Ablation Probe is not intended for cardiac use.
The Microwave Ablation Device with Sterile Microwave Ablation Probe is a device system which is intended for soft tissue coagulation. The Microwave Ablation Device consists of power supply, microwave power source, control system, temperature measurement system, RF connection cable, foot switch, and temperature probe. The Sterile Microwave Ablation Probe is a single-use sterile product, consisting of a handle, RF connector, RF coaxial cable, needle bar, inner tube, pinhead, temperature sensor and coolant tube. The Microwave Ablation Device also contains a single use Sterile Temperature Probe.
This is a 510(k) premarket notification for a medical device, which means the FDA has determined it is "substantially equivalent" to an existing legally marketed device (the predicate device). In this context, "acceptance criteria" and "study that proves the device meets the acceptance criteria" refer to the non-clinical performance and testing performed to demonstrate that the new device is as safe and effective as the predicate, despite minor differences.
Here's a breakdown of the requested information based on the provided document:
1. Table of Acceptance Criteria and Reported Device Performance
The document doesn't present a formal table of acceptance criteria with specific numerical targets and corresponding reported performance for clinical efficacy. Instead, the "acceptance criteria" are implied by the successful completion of various non-clinical tests demonstrating compliance with regulatory standards and comparable performance to the predicate device.
| Test Category | Implied Acceptance Criteria (Demonstrated Compliance/Equivalence) | Reported Device Performance |
|---|---|---|
| Electrical Safety | Compliance with IEC 60601-1 | "Passed the testing in accordance with internal requirements, and international standards." Specifically, ES60601-1 was met. |
| EMC | Compliance with IEC 60601-1-2 | "Passed the testing in accordance with internal requirements, and international standards." Specifically, IEC 60601-1-2 was met. |
| Performance (Device Specific) | Compliance with IEC 60601-2-6 (Microwave Therapy Equipment) | "Passed the testing in accordance with internal requirements, and international standards." Specifically, IEC 60601-2-6 was met. |
| Software Validation | Compliance with FDA guidance for software in medical devices | "Software validation is in compliance with FDA guidance for the content of premarket submissions for software contained in Medical devices." |
| Shelf Life | Validity of 3-year shelf life claim for probe (accelerated aging, package tests) | "Accelerated aging and package tests were conducted to confirm the validity of the 3 year shelf life claim for the Sterile Microwave Ablation Probe." (Implies successful confirmation). |
| Thermal Effects Test | Comparable thermal effects to predicate, demonstrating no new safety/performance risks for power/length differences. | "The thermal effects test with ex vivo animal tissues device and does not raise new safety and performance risks." (Comment 2 & 4) |
| Temperature Monitoring Test | Functionality and accuracy of temperature monitoring. Demonstrates no new safety/performance risks for "Mode B". | "Tissue protection temperature need the subject device will monitor tissue temperature using the Sterile Temperature Probe. After tissue temperature reach the setup protection value, Microwave output to control the tissue temperature stable around the ±3% tolerance of the set temperature, the protection value range is 37.0 ℃~100.0 ℃. Mode B does not raise new safety and performance risks." |
| Package Verification | Compliance with ISO 11607-1:2016 | "Passed the testing in accordance with internal requirements, and international standards." Specifically, ISO 11607-1:2016 was met. |
| Sterilization Validation | Compliance with ISO 11135-1:2014 (Ethylene Oxide Sterilization) | "Passed the testing in accordance with internal requirements, and international standards." Specifically, ISO 11135-1:2014 was met. |
| Biocompatibility | Compliance with ISO 10993-1 and applicable parts | "The compatibility of the skin-contact component material in the finished product meets the requirement of Biocompatibility. The Biological Evaluation Tests are in compliance with the standards of ISO 10993-1 and its applicable parts, 'Biological Evaluation of Medical Devices'." (Implies successful compliance) |
| Probe Stability Tests | Stability with maximum output power and extended treatment duration. | "Sterile Microwave Ablation Probe Stability Tests with maximum output power and extended treatment duration." (Implies successful completion and meeting requirements, though specific results not detailed). |
| Temperature Sensor Accuracy Verification | Accuracy of temperature sensor measurement. | "Temperature Sensor Measurement Accuracy Verification Tests." (Implies successful completion and meeting requirements, though specific results not detailed). |
2. Sample size used for the test set and the data provenance
- Sample Size: Not explicitly stated for specific tests. For the thermal effects test, it mentions "ex vivo animal tissues," but the number of samples is not provided. Other tests refer to compliance with standards rather than specific sample sizes of device units tested.
- Data Provenance: The tests are "non-clinical." This implies laboratory or bench testing. The origin of the animal tissues for the thermal effects test is not specified (e.g., country of origin). All tests were conducted by the manufacturer, Hygea Medical Technology Co., Ltd.
3. Number of experts used to establish the ground truth for the test set and the qualifications of those experts
This information is not applicable to this submission. This is a 510(k) for a hardware device (Microwave Ablation Device and Probe) and the non-clinical tests described are primarily engineering and performance tests, not clinical evaluations requiring human expert interpretation of diagnostic images or outcomes. Therefore, there is no "ground truth" established by experts in the context of clinical data for this submission.
4. Adjudication method (e.g., 2+1, 3+1, none) for the test set
This information is not applicable. Adjudication methods are typically used in clinical studies involving human readers and interpretations (e.g., radiologists reviewing images) to establish a consensus ground truth. The tests described are engineering and biochemical in nature and would not involve such 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
This information is not applicable. This device is a microwave ablation system, not an AI-powered diagnostic or assistive tool, and the submission does not include any clinical studies, MRMC studies, or AI components.
6. If a standalone (i.e., algorithm only without human-in-the-loop performance) was done
This information is not applicable. The device is a physical ablation system, not an algorithm.
7. The type of ground truth used (expert consensus, pathology, outcomes data, etc.)
For the non-clinical tests, the "ground truth" is generally defined by:
- Established engineering and performance standards: e.g., IEC 60601-1, IEC 60601-1-2, IEC 60601-2-6, ISO 11607-1, ISO 11135-1, ISO 10993-1.
- Physical measurements and observations in bench testing (e.g., temperature stability within ±3% tolerance, confirmation of thermal effects in ex vivo tissues, successful completion of stability tests).
- Successful software validation against established FDA guidance.
There is no "expert consensus, pathology, or outcomes data" mentioned as ground truth in this non-clinical submission.
8. The sample size for the training set
This information is not applicable. There is no "training set" as this is not an AI/machine learning device. The non-clinical tests are validating the device's physical and electrical performance.
9. How the ground truth for the training set was established
This information is not applicable as there is no training set.
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(155 days)
The NEUWAVE™ Microwave Ablation System and Accessories are indicated for the ablation (coagulation) of soft tissue in percutaneous, open surgical and in conjunction with laparoscopic surgical settings, including the partial or complete ablation of non-resectable liver tumors.
The NEUWAVE Microwave Ablation System is not indicated for use in cardiac procedures.
The NEUWAVE Microwave Ablation System is a self-contained stand-alone system of hardware and software designed for the ablation of soft tissue, including the partial or complete ablation of non-resectable liver tumors, via applying microwave energy to produce tissue heating effects generating tissue necrosis.
The system consists of three major components:
- (1) The system cart which contains the components necessary to deliver microwave power to the microwave ablation probes, monitor and control system functions, a graphical user interface for the user to interact with the system and a CO2 based cooling system.
- (2) Power Distribution Module (PDM), which allows power to be transferred from the system generator to the ablation probes.
- (3) Range of microwave ablation probe accessories for energy delivery.
The system cart has a single 2.45 GHz signal microwave source with three 140W microwave power amplifiers, a touch-screen graphical user interface, and a CO2 based cooling system for limiting the temperature of the ablation probe, handle, and cable.
The CO2 cooling system enables the Tissu-Loc™ function, which involves formation of an ice ball to adhere the probe in place prior to starting ablation therapy. This helps eliminate probe migration during imaging (CT scans, ultrasounds, etc.) and additional probe placement. The cooling system is responsible for controlling the pressure of the incoming CO2 gas from two Esized CO2 cylinders located on the back of the cart.
The graphical user interface allows the user to set, adjust and activate the power setting per probe, time setting for each probe, ability to synchronize ablation initiation on probes, ablation activation, cauterization activation, audible volume, probe temperature, and Tissu-Loc™ function.
Up to three (3) NEUWAVE Ablation Probes can connect to the PDM at once and the PDM allows power to be transferred from the system cart to the ablation probes.
The microwave ablation probes are accessories which transfer microwave energy from the system cart to the target tissue to create regions of thermal necrosis. Each probe contains thermocouples that monitor the temperature of the probe. The probes can be used for Surgical Mode or Ablation Mode with various limits of maximum selectable power based on the probe type.
The antenna of the NEUWAVE PR probe family is designed to limit the length of the ablation for instances when a shorter ablation zone is desired. NEUWAVE PR Probes were developed to provide physicians with an additional ablation probe option with a different ablation burn pattern compared with NEUWAVE LK/LN/SR probes. The NEUWAVE PR probes are designed to produce ablations that quickly encompass the tip of the probe while limiting the overall length of the ablation compared with other NEUWAVE ablation probes.
There are 2 changes covered by this 510(k) submission:
-
- A new Microwave Ablation Probe, the Surgical PR Probe (PRS35), available for use with the NEUWAVE System.
-
- Updates to the NEUWAVE System software to accommodate the new PRS35 probe and to implement various enhancements to the user experience and correct minor software anomalies that do not impact safety or effectiveness.
The new NEUWAVE Surgical PR Ablation Probe (PRS35) has a 11/13-gauge and 35cm length cannula with a 2.9m cable in length. The proposed PRS35 probe uses a similar cannula and antenna design to the predicate probes PRS15 & NWSR25, and the ablation pattern also closely resembles the above stated predicate. The longer cannula length is a primary purpose of the new probe to enable access to targets farther from the skin surface due to insufflation in laparoscopic procedures.
The subject embedded software utilizes the existing firmware and software architecture design, technological characteristics and functions but incorporates enhancements and features as described below:
- Procedure Profiles
- PRS35 Probe Support ●
- Planning: Time and Power Guide available without probe ●
- Cybersecurity
- Misc. Bug fixes ●
- Additional Languages to support country specific registration globally (Finnish, Norwegian, Turkish)
No changes were made to the currently marketed family of NEUWAVE Ablation Probes nor to any hardware aspects of the currently marketed NEUWAVE system cleared under K220472.
The selection of available ablation probes provides physicians with the opportunity to select the length, stiffness, burn pattern and number of probes to use to create a wide variety of ablation zone sizes and shapes.
The provided text describes the 510(k) summary for the NEUWAVE™ Microwave Ablation System and Accessories, specifically focusing on the addition of a new probe (PRS35) and software updates. It states that all acceptance criteria were met, but it does not provide a detailed table of acceptance criteria with reported device performance, information on sample sizes, ground truth establishment methods, or the specifics of a study proving all acceptance criteria were met.
Therefore, many of the requested items cannot be definitively answered from the provided text.
Here is a summary of what can be extracted and what is missing:
1. Table of Acceptance Criteria and Reported Device Performance
Not available in the provided text. The document states: "All testing passed, and all acceptance criteria were met." however, it does not specify what those acceptance criteria were or provide a table of performance data against them.
2. Sample Size Used for the Test Set and Data Provenance
Not available in the provided text. The document highlights "Nonclinical Testing" including "Probe Ablation Performance Testing in ex-vivo liver, kidney, muscle and lung tissue," but does not explicitly state the sample sizes (e.g., number of probes, number of ex-vivo tissue samples) or the data provenance (e.g., country of origin, retrospective or prospective nature).
3. Number of Experts Used to Establish the Ground Truth for the Test Set and Their Qualifications
Not applicable / Not available. This type of information is typically relevant for studies involving human interpretation (e.g., imaging studies). For a microwave ablation system, the "ground truth" for non-clinical performance likely refers to measurable physical outcomes (e.g., ablation zone size, temperature profiles) in ex-vivo tissue, which would not typically involve expert consensus in the same way. The document does not mention any expert involvement for establishing ground truth in the non-clinical tests.
4. Adjudication Method for the Test Set
Not applicable / Not available. Adjudication methods (e.g., 2+1, 3+1) are typically used in clinical studies or studies involving human readers/interpreters to resolve discrepancies. For the non-clinical performance testing of a microwave ablation system, this concept does not directly apply.
5. Multi-Reader Multi-Case (MRMC) Comparative Effectiveness Study
No. The document explicitly states: "No clinical data was generated in support of this Premarket 510(k) Notification." Therefore, no MRMC study or assessment of human reader improvement with AI assistance was conducted.
6. Standalone (Algorithm Only Without Human-in-the-Loop Performance) Study
Yes, implicitly for the software updates. The submission includes "Software Verification and Validation" testing, which would assess the algorithm's performance in a standalone manner. However, no specific performance metrics of the software algorithm itself (e.g., accuracy of a particular feature) are provided. The software updates are described as accommodating the new PRS35 probe, implementing user experience enhancements, and correcting minor anomalies.
7. Type of Ground Truth Used (Expert Consensus, Pathology, Outcomes Data, etc.)
For the "Probe Ablation Performance Testing in ex-vivo liver, kidney, muscle and lung tissue," the ground truth would likely be physical measurements (e.g., dimensions of the ablation zone, temperature reached) observed directly from the ex-vivo tissue after ablation. The document does not specify the exact methodology, but for such a device, these are standard methods.
8. Sample Size for the Training Set
Not applicable / Not available. The document describes a "510(k) premarket notification," which is for demonstrating substantial equivalence to a predicate device, not for a new device requiring a de novo clearance or PMA where extensive training data for AI/ML models might be detailed. The software updates mentioned are for "enhancements to the user experience and correct minor software anomalies" and "PRS35 Probe Support," not for developing a new AI/ML algorithm that would typically require a training set.
9. How the Ground Truth for the Training Set Was Established
Not applicable. As the device submission does not describe the development of a new AI/ML algorithm requiring a training set, the establishment of ground truth for a training set is not relevant to the provided information.
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(108 days)
The Microwave Ablation System is indicated for the coagulation (ablation) of soft tissue. The Microwave Ablation System is not intended for cardiac use.
The Microwave Ablation System is a microwave power (energy) source that can meet the needs of clinical soft tissue microwave thermal ablation therapy. The microwave energy is transmitted to the disposable microwave ablation needle through coaxial transmission cable, and the disposable microwave ablation needle is directly inserted into the targeted soft tissue, and the electromagnetic wave (microwave) is radiated from the front end of the disposable microwave ablation needle to cause the soft tissue to produce heat and rise. When it reaches the temperature of tissue coagulation and necrosis, in-situ inactivation is formed, that is, the purpose of microwave ablation therapy is achieved.
The Disposable Thermometer Needle and Foot Switch are accessories for the proposed device. And the proposed device is used in conjunction with the Disposable Microwave Ablation Needle made by our company.
The provided text describes a 510(k) premarket notification for a Microwave Ablation System. It focuses on demonstrating substantial equivalence to a predicate device rather than presenting a study to prove the device meets specific acceptance criteria in the way a clinical trial or performance study for a diagnostic device would.
Therefore, much of the requested information regarding acceptance criteria, reported performance, sample sizes, expert ground truth, adjudication, MRMC studies, standalone performance, and training set details are not applicable or available from this 510(k) summary. This document primarily focuses on engineering and regulatory compliance rather than clinical performance metrics as might be found in a diagnostic AI device submission.
Here's an attempt to answer the questions based on the provided text, indicating where information is not available:
1. Table of Acceptance Criteria and Reported Device Performance
The document does not present specific quantitative performance acceptance criteria (e.g., accuracy, sensitivity, specificity) for a clinical outcome in the way an AI diagnostic device might. Instead, the "acceptance criteria" are implied by the conformance to various safety, performance, and software standards. The reported "performance" focuses on meeting these standards and demonstrating equivalence to a predicate device.
| Acceptance Criteria Category | Specific Criteria (Implied from standards) | Reported Device Performance/Compliance |
|---|---|---|
| Electrical Safety | Conformance to IEC 60601-1:2005, IEC 60601-1:2005/AMD1:2012, IEC 60601-1:2005/AMD2:2020 | Designed and tested in accordance with the specified IEC 60601-1 standards. |
| EMC | Conformance to EN 60601-1-2: 2015+A1: 2021/ IEC 60601-1-2: 2014+AMD1:2020 | Designed and tested in accordance with the specified EN/IEC 60601-1-2 standards. |
| Device Performance | Conformance to IEC 60601-2-6: 2012, AMD1:2016 (Particular requirements for microwave therapy equipment) | Designed and tested in accordance with IEC 60601-2-6. The overall performance test of the proposed device was conducted "as same as the predicate device," addressing main functions (power module, control feedback, microwave transmitting, water circulation). |
| Software Life-cycle | Conformance to ANSI AAMI IEC 62304:2006/A1:2016 and FDA Guidance: Content of Premarket Submissions for Device Software Functions. | Software verification was conducted on the proposed device according to FDA software guidance, and the test result proves the functions in each operational mode can be achieved, and the differences in operational modes do not raise new risks. |
| Thermal Effects | Conformance to FDA Guidance: Premarket Notification (510(k)) Submissions for Electrosurgical Devices for General Surgery (Thermal Effects test and Temperature monitoring test). | Thermal Effects test and Temperature monitoring test were conducted in accordance with the FDA Guidance. The device includes temperature monitoring features to ensure system safety and utilizes a pumped cooling system (distilled water or saline) for the ablation needle (consistent with predicate). |
| Intended Use | Indicated for coagulation (ablation) of soft tissue, not intended for cardiac use. | The stated indication for use is identical to the predicate device. |
| Safety and Effectiveness | No new questions of safety or effectiveness are raised compared to the predicate device. | Differences from the predicate device (e.g., operational modes, specific design of components) were analyzed and determined to not raise new risks or affect substantial equivalence. |
2. Sample size used for the test set and the data provenance
The document explicitly states: "No clinical study is included in this submission." This means there isn't a "test set" of patient data in the context of evaluating a diagnostic or AI-driven device's clinical performance. The testing mentioned (electrical safety, EMC, thermal effects) would involve laboratory setups and devices, not patient data.
3. Number of experts used to establish the ground truth for the test set and the qualifications of those experts
Not applicable, as no clinical study or test set using patient data for ground truth establishment was conducted or reported.
4. Adjudication method for the test set
Not applicable, as no clinical study or test set requiring expert adjudication was conducted or reported.
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 Microwave Ablation System, which is a therapeutic device, not a diagnostic device that would typically involve human readers or AI assistance for interpretation.
6. If a standalone (i.e. algorithm only without human-in-the loop performance) was done
Not applicable. This device is a therapeutic system, not an algorithm or AI product. Its performance is related to its physical functions and safety, not an AI's standalone interpretation capability.
7. The type of ground truth used (expert consensus, pathology, outcomes data, etc.)
For the engineering and safety tests, the "ground truth" would be the specifications and requirements defined by the relevant international standards (e.g., IEC 60601 series) and FDA guidance documents. For instance, an electrical safety test's ground truth is whether the device does or does not meet the leakage current limits. This is based on objective measurements against engineering standards, not clinical ground truth like pathology.
8. The sample size for the training set
Not applicable. There is no mention of a training set as this is not an AI/machine learning device.
9. How the ground truth for the training set was established
Not applicable. There is no mention of a training set.
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