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The Di-Chem Inc. Hemo-Lyte C cartridge is indicated for use in bicarbonate hemodialysis for acute and chronic renal failure, or intoxication with dialyzable substances.

The Di-Chem Hemo-Lyte C sodium bicarbonate cartridge for hemodialysis is a dry powder concentrate used to prepare sodium bicarbonate concentrate solution for use in conventional hemodialysis. The Hemo-Lyte C cartridge is a single use/non-refillable polypropylene cartridge containing a measured amount of sodium bicarbonate (USP Hemodialysis grade) which enables the online preparation of bicarbonate hemodialysis solution on commercially available hemodialysis machines/monitors equipped for use with bicarbonate cartridges.

The Di-Chem, Inc. Citryte Acid Concentrate for bicarbonate dialysis is indicated for use in the treatment of acute and chronic hemodialysis. It is to be used with the appropriate hemodialysis machine and sodium bicarbonate.

The Di-Chem, Inc. proposed Citryte hemodialysis acid concentrate is provided in dry form and is for use in sodium bicarbonate dialysis. Citryte is comprised of sodium chloride (100.0mEq/L), potassium chloride (1.0-3.0mEq/L), calcium chloride (2.0-3.0mEq/L), magnesium chloride ( 1.0 mEq/L), dextrose ( 100 mg%), and citric acid (2.4mEq/L). All of the chemical constituents meet USP grade or equivalent. The proposed device will be manufactured, tested and labeled in accordance to ANSI/AAMI 13958:2014 guidelines. Each of the proposed formulations will be offered in three different mix volumes, 16.5 gallon, 20 gallon and 25 gallon to meet the three mix volume sizes of the current commercially available hemodialysis mixing machines. Each case of product contains the measured amount of each chemical component corresponding to the labeled product formula and listed final solution volume. The product packaging consists of two equal weight bags of sodium chloride, one bag of dextrose and one bag containing the citric acid, potassium chloride, calcium chloride and magnesium chloride. Each product bag is labeled indicating its contents, lot number, use by date, and product formula. The product bags are comprised of polyethylene and are 18"x24"x0.004". The four bags are then packaged into one corrugate box. Each box will contain all of the chemical components to make one of the three available volumes of the labeled formulation. The product is intended to be mixed into solution using water meeting or exceeding ANSI/AAMI Hemodialysis Water Quality Standards utilizing commercially available hemodialysis concentrate mixers in accordance with the mixer manufacturer's directions. These chemicals when in solution are intended to be used as the acid portion of a three part hemodialysis treatment in conventional commercially available hemodialysis machines or monitors in providing a hemodialysis treatment. The hemodialysis formulations presented in this 510(k) notification are intended to be used in a three-stream hemodialysis machine in which an acid concentrate (Citryte) is proportioned into one stream, a sodium bicarbonate concentrate solution is proportioned into another stream and a specified volume of water is proportioned into the remaining stream of the hemodialysis machines proportioning system. These three streams are then mixed by the hemodialysis machine to prepare a final proportioned hemodialysis solution. These proportioned hemodialysis solutions are then heated to body temperature and pumped through the hemodialysis compartment of a hemodialyzer (artificial kidney). These hemodialysis solutions are separated from the patient's blood by a semi-permeable cellulosic or non-cellulosic membrane which functions as a molecular weight selective barrier to the passage of molecules above a certain molecular weight. The semi-permeable membrane in the hemodialyzer permits the passage of both ionized and non-ionized molecules, waste products and toxins including blood urea, nitrogen, creatinine and potassium contained in the patient's blood circulating through the hemodialyzer to pass through the semi-permeable membrane into the hemodialysis solution then circulating back to the hemodialysis machine where the solution is ultimately discarded. The ionic and molecular composition of the hemodialysis solution establishes the concentration gradient between the patient's blood and the hemodialysis solution passing through the hemodialyzer which permits the effective removal of waste products and toxins found in excess in the patient's blood during acute and end-stage renal failure. Since different patients have different requirements for the removal rates and quantities of the various molecules and toxins in acute and end-stage renal failure it is necessary to have a variety of different hemodialysis solution formulations to satisfy the needs of all renal failure patients. For this reason the Citryte is offered in multiple formulations containing varying amounts of potassium chloride and calcium chloride.

The DI-CHEM Sodium Bicarbonate powders are indicated for use in the treatment of acute and chronic hemodialysis and to be used with an appropriate hemodialysis machine/monitor.

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The Di-Chem Liquid Sodium Bicarbonate solutions are indicated for use in the treatment of acute and chronic hemodialysis and to be used with an appropriate hemodialysis machine/monitor.

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