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The ACE Axcel Clinical Chemistry System is an automated, discrete, bench-top, random access analyzer that is intended for in vitro diagnostic use in the quantitative determination of constituents in blood and other fluids.

ACE Hemoglobin A1c (HbA1c) Reagent is intended for the quantitative determination of hemoglobin A1c (µmol/L) and total hemoglobin (g/dL) in human EDTA whole blood for the calculation of percent hemoglobin A1c using the ACE Axcel Clinical Chemistry System. The test is intended for use in clinical laboratories or physician office laboratories to monitor long term blood glucose control in individuals with diabetes mellitus. For in vitro diagnostic use only.

The ACE CEDIA T Uptake homogenous enzyme immunoassay is intended for the quantitative determination of unoccupied binding sites of thyroxine-binding proteins in serum using the ACE Axcel Clinical Chemistry System. Measurements of triiodothyronine uptake are used in the diagnosis and treatment of thyroid disorders. This test is intended for use in clinical laboratories or physician office laboratories. For in vitro diagnostic use only.

The ACE T4 Reagent is intended for the quantitative determination of total thyroxine (T4) concentration in serum using the ACE Axcel Clinical Chemistry System. Total thyroxine measurements are used in the diagnosis and treatment of thyroid diseases. This test is intended for use in clinical laboratories or physician office laboratories. For in vitro diagnostic use only.

The ACE Ferritin Reagent is intended for the quantitative determination of ferritin concentration in serum using the ACE Axcel Clinical Chemistry System. Measurements of ferritin aid in the diagnosis of diseases affecting iron metabolism, such as hemochromatosis (iron overload) and iron deficiency anemia. This test is intended for use in clinical laboratories or physician office laboratories. For in vitro diagnostic use only.

The ACE Axcel Clinical Chemistry System consists of two major components, the chemistry instrument and an integrated Panel PC. The instrument accepts the physical patient samples, performs the appropriate optical or potentiometric measurements on those samples and communicates that data to an integral Panel PC. The Panel PC uses keyboard or touch screen input to manually enter a variety of data, control and accept data from the instrument, manage and maintain system information and generate reports relative to patient status and instrument performance. The Panel PC also allows remote download of patient requisitions and upload of patient results via a standard interface.

Prior to the ACE Hemoglobin A1c (HbA1c) Reagent assay, whole blood samples require a pretreatment step, which is done on-board the analyzer. The red blood cells in the sample are lysed by the Hemoglobin Denaturant and the hemoglobin chains are hydrolyzed. For determination of HbA1c, a latex agglutination inhibition assay is used. In the absence of HbA1c in the sample, the agglutinator (synthetic polymer containing the immunoreactive portion of HbA1c) in the HbA1c Agglutinator Reagent and the antibody-coated microparticles in the HbA1c Antibody Reagent will agglutinate. The presence of HbA1c in the sample competes for the antibody binding sites and inhibits agglutination. The increase in absorbance, monitored monochromatically at 592 nm, is inversely proportional to the HbA1c present in the sample. For the determination of total hemoglobin, all hemoglobin derivatives in the sample are converted to alkaline hematin. The reaction produces a green colored solution, which is measured bichromatically at 573 nm/692 nm. The intensity of color produced is directly proportional to the total hemoglobin concentration in the sample. The concentrations of both HbA1c and total hemoglobin are measured, the ratio is calculated and the result reported as percent HbA1c.

The CEDIA T Uptake assay uses recombinant DNA technology to produce a unique homogeneous enzyme immunoassay system. The assay is based the bacterial enzyme β-galactosidase, which has been genetically engineered into two inactive fragments. These fragments spontaneously re-associate to form fully active enzyme which, in the assay format, cleaves a substrate, generating a color change that can be measured spectrophotometrically. In the assay, enzyme donor thyroxine conjugate binds directly to the unoccupied thyroxine-binding sites in the sample, preventing the spontaneous re-association of the enzyme fragments to form the active enzyme. Thus, thyroxine-binding proteins regulate the amount of β-galactosidase formed from the reassembly of the remaining donor and enzyme acceptor as monitored by the hydrolysis of the substrate o-nitrophenyl-β-galactopyranoside.

The ACE T4 Assay is a homogeneous enzyme immunoassay using ready-to-use liquid ACE T4 Reagent. The assay uses 8-anilino-1-naphthalene sulfonic acid (ANS) to dissociate thyroxine from the plasma binding proteins. Using specific antibodies to thyroxine, this assay is based on the competition of glucose-6-phosphate dehydrogenase (G6PD) labeled thyroxine and the dissociated thyroxine in the sample for a fixed amount of specific antibody binding sites. In the absence of thyroxine from the sample, the thyroxine labeled G6PD in the second reagent is bound by the specific antibody in the first reagent, inhibiting the enzyme's activity. The enzyme G6PD catalyzes the oxidation of glucose-6-phosphate (G6P) with nicotinamide adenine dinucleotide (NAD+) to form 6-phosphogluconate and reduced nicotinamide adenine dinucleotide (NADH). NADH strongly absorbs at 340 nm whereas NAD+ does not. The rate of conversion, determined by measuring the increase in absorbance bichromatically at 340 nm/505 nm during a fixed time interval, is directly proportional to the amount of thyroxine in the sample. The concentration of thyroxine is determined automatically by the ACE Clinical Chemistry System using a logarithmic calibration curve established with calibrators, which are provided separately.

In the Ferritin Assay, serum ferritin, in the presence of anti-ferritin conjugated latex micorparticles, and a buffer promoting aggregation, initiates an antigen-antibody reaction, resulting in the agglutination of the latex microparticles. The agglutination is detected turbidometrically by an absorbance change measured at a wavelength of 592 nm. The magnitude of the absorbance change is proportional to the ferritin concentration in the sample.

The provided text is a 510(k) summary for the Alfa Wassermann Diagnostic Technologies ACE Axcel Clinical Chemistry System and several associated reagents. It describes the devices, their intended uses, and technological characteristics. However, the document does not contain any information about acceptance criteria or a study that proves the device meets specific acceptance criteria.

The content of the document focuses on:

• Identification of the device and reagents: Trade names, classifications, common names, and product codes.
• Predicate devices: Listing the previously approved systems and reagents used for comparison in the 510(k) submission.
• Device descriptions: Detailed explanations of the ACE Axcel Clinical Chemistry System's functionality and the biochemical principles of each reagent (HbA1c, CEDIA T Uptake, T4, Ferritin).
• Intended Use/Indications for Use: What each device/reagent is designed to measure and for what clinical purpose.
• Technological Characteristics: Specifications of the analyzer (throughput, reagent capacity, cooling, sample handling, optical system).
• Regulatory approval notice: A letter from the FDA indicating substantial equivalence.

Therefore, I cannot provide a table of acceptance criteria or details of a study proving the device meets those criteria from the provided text. The requested information about sample sizes, data provenance, expert qualifications, ground truth, MRMC studies, or standalone performance studies is not present in this document.

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