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The Clearum™ HS dialyzer family is intended for use in acute or chronic renal failure patients requiring hemodialysis.

The Clearum™ HS family consists of dialyzers comprised by a cylindrical polypropylene body containing a bundle of microporous hollow fibers made of polyethersulfone (PES) secured to the ends by means of hot-melt polvurethane resin.

The devices are available in different models which differentiate by membrane surface area, ranging from 1.3 to 2.2 m², and for the dimensions of the outer cylindrical body in terms of length and height (306 x 41 mm for the surface areas in the range 1.3-1.5 m², 306 x 44 mm for the surface area 1.7 m² and 366 x 44 mm for the surface areas in the range 2.0-2.2 m²).

Similar to other commercially available hemodialyzers, blood and dialysate flow in a countercurrent in their respective compartments. In this process, toxins and fluid are transferred across the semipermeable membrane from the blood to the dialysate compartment.

The dialyzers are sterilized using moist heat with saturated steam, have a non-pyrogenic fluid path, and are labeled for single use.

The provided text describes the Clearum™ HS family of dialyzers and their comparison to a predicate device, the Polyflux H models, to demonstrate substantial equivalence for FDA 510(k) clearance. This report does not describe acceptance criteria for an AI/ML powered medical device, but rather for a physical medical device. It focuses on in-vitro test results and comparison to a predicate device.

Here's an analysis of the provided information, noting where specific requested details (like those for AI/ML studies) are not available in this physical device submission:

1. Table of Acceptance Criteria and Reported Device Performance

The submission does not explicitly list "acceptance criteria" in a table format for each performance metric, but rather states that "The results of the testing met the performance specifications demonstrating that the Clearum™ HS family performs as intended." It also aims to demonstrate substantial equivalence to the predicate device.

The "performance specifications" are implicitly derived from the established performance characteristics of the predicate device and the industry standards (ISO 8637-1:2017).

2. Sample Size Used for the Test Set and Data Provenance

• Sample Size for Test Set: The document states "In vitro testing was conducted on the entire Clearum™ HS dialyzers family" and "For comparative purposes, the same testing, was also conducted on the Polyflux H predicate device, when applicable." However, the exact number of units tested (sample size) for each model or for the overall family is not specified in the provided text.
• Data Provenance: The testing was "in-vitro," meaning it was conducted in a laboratory setting. There is no mention of human subject data, retrospective or prospective studies in the context of device performance. The manufacturer, Bellco S.r.l., is located in Mirandola MO, Italy, suggesting the tests were likely conducted there or at an affiliated lab.

3. Number of Experts Used to Establish Ground Truth for the Test Set and Qualifications of Those Experts

This information is not applicable to this type of device submission. For physical medical devices like dialyzers, "ground truth" is established through physical and chemical testing against recognized standards (e.g., ISO, FDA guidance) and comparison to the predicate device's established performance. It does not involve expert adjudication of clinical data in the way an AI/ML device would.

4. Adjudication Method for the Test Set

This information is not applicable. Adjudication methods (like 2+1, 3+1) are used for resolving discrepancies in expert interpretations of data, typically in AI/ML validation studies. For this physical device, performance is measured objectively through lab tests.

5. If a Multi Reader Multi Case (MRMC) Comparative Effectiveness Study was done, If so, what was the effect size of how much human readers improve with AI vs without AI assistance

This information is not applicable. This is a submission for a physical medical device (hemodialyzer), not an AI-powered diagnostic or assistive technology. Therefore, no MRMC study or AI-assisted human reader improvement metrics are relevant or discussed.

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

This information is not applicable. This is a physical medical device, not an algorithm.

7. The Type of Ground Truth Used

For this device, the "ground truth" is based on:

• Industry Standards: Compliance with ISO 8637-1:2017 ("Cardiovascular implants and extracorporeal systems - Hemodialysers, hemodiafilters, hemofilters and hemoconcentrators") and ISO 10993-1 ("Biological evaluation of medical devices").
• FDA Guidance: "Guidance for the Content of Premarket Notifications for Conventional and High Permeability Hemodialyzers" (1998) and "Use of International Standard ISO-10993, "Biological Evaluation of Medical Devices Part 1: Evaluation and Testing."
• Predicate Device Performance: The established, legally marketed performance characteristics of the Polyflux H dialyzer family. The new device demonstrates "substantial equivalence" to the predicate.

8. The Sample Size for the Training Set

This information is not applicable. There is no "training set" in the context of an AI/ML algorithm for this physical medical device.

9. How the Ground Truth for the Training Set was Established

This information is not applicable as there is no training set for an algorithm.

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The capillary dialyzer is intended for hemodialysis for the treatment of chronic and acute renal failure.

This device is intended for use in hemodialysis for the treatment of acute and chronic renal failure. The membrane used in this device is a blend of polyarylethersulfone (PAES) and polyvinylpyrrolidone(PVP), which is equivalent to the membrane utilized in the Gambro Polyflux H single use hemodialyzers cleared for marketing in the United States under 510K Notification (K030592). Blood enters a blood inlet port where it is distributed to the hollow fibers. The patient's blood traverses the inside of the hollow fibers and exits the device via a blood exit port. By means of a hydrostatic pressure or transmembrane pressure which is created by a combination of positive and negative pressures across the membrane, plasma water along with certain lower and middle molecular weight solutes pass through the membrane and into the dialysate or filtrate compartment of the device. Uremic toxins and waste products are removed from the patient's blood in this device by means of both diffusion and convection through the membrane and into the countercurrent flowing dialysis solution during hemodialysis. The dialysate exits the devices via a dialysate outlet port.

The provided text describes a 510(k) premarket notification for a medical device, the Gambro Polyflux HD-C4 Capillary Dialyzer for Single Use. This filing primarily demonstrates substantial equivalence to a predicate device through non-clinical testing. Here's a breakdown based on your request:

1. Table of Acceptance Criteria and Reported Device Performance

2. Sample Size Used for the Test Set and Data Provenance

• Sample Size: Not explicitly stated. The document mentions "in vitro testing was conducted to compare the performance...". It does not specify the number of devices or iterations tested.
• Data Provenance: The testing was "non-clinical in vitro testing." The country of origin for the data is not specified, but the submitter is Gambro Renal Products, located in Lakewood, Colorado, USA. The testing would be considered prospective for the specific purpose of this 510(k) submission, even if the methods are established.

3. Number of Experts Used to Establish the Ground Truth for the Test Set and their Qualifications

• Not applicable. This submission relies on performance testing against a predicate device and does not involve human expert interpretation of data to establish a ground truth for a diagnostic or AI-driven device. The ground truth for performance is derived from established engineering and scientific principles for dialyzer function, and comparison to the well-characterized predicate device.

4. Adjudication Method for the Test Set

• Not applicable. As the "ground truth" is based on objective in vitro performance metrics compared to a predicate device, an adjudication method for human interpretation is not relevant.

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. This device is a capillary dialyzer, not an AI-assisted diagnostic tool or an imaging device that would require human interpretation.

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

• Not applicable. This is a medical device (a dialyzer), not an algorithm or AI system. Its performance is evaluated through its physical and functional characteristics.

7. The Type of Ground Truth Used

• The ground truth used for this device is based on established performance characteristics of surgically implanted devices (specifically, hemodialyzers) and direct comparison to a legally marketed predicate device (Polyflux 210H, K030592). This includes measurements of design, function, composition, and operation in an in vitro setting.

8. The Sample Size for the Training Set

• Not applicable. This device is not an AI or machine learning model, so there is no "training set."

9. How the Ground Truth for the Training Set was Established

• Not applicable. As there is no training set, this question is not relevant.

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