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The 2008 Sorbent System is intended for adult acute and chronic uremic patients in the presence of a healthcare practitioner where hemodialysis is prescribed on the order of a physician.

The 2008 Sorbent System consists of two distinct components: - the 2008 Machine, and . - . the SORB™ Module. The SORB Module is a sorbent dialysate regenerative system that attaches to the 2008 Machine and replaces the machine's existing single-pass dialysate delivery system. During treatment, used dialysate is chemically reprocessed into fresh, new dialysate and sent back to the dialyzer instead of being sent down a drain. By recirculating and regenerating the dialysate, the 2008 Sorbent System uses less than 15 liters of potable tap water per treatment compared to a standard sinqle-pass system that uses at least 120 liters of purified water during a standard 4-hour dialysis treatment.

The intended use of the Venofer Pump 1.1 is identical to the unmodified device. The Venofer® Pump Is an optional accessory for use on Fresenius 2008T Hemodialysis Machines and is intended to administer Venofer®, an iron sucrose, to treat iron deficiency anemia in patients with chronic kidney disease undergoing hemodialysis, where Venofer®, in conjunction with hemodialysis, is prescribed by a physician. Fresenius 2008T is indicated for acute and chronic dialysis therapy.

The Venofer Pump Module is an optional module for use on Fresenius 2008T Hemodialysis Machines. The module is designed to administer Venofer, an iron sucrose supplement, during dialysis treatments. The Venofer Pump Module is to be used in accordance with the approved Venofer Indications for Use and the physician's prescription. The Venofer Pump Module fits into the module compartment of Fresenius 2008T Machines and consists of a control panel, vial holder, fluld detector, and a peristaltic pump.

The Allient Sorbent Hemodialysis System, including the SORB series and HISORB series of cartridges is to be used for the treatment of acute and chronic uremic patients where hemodialysis is prescribed by the Physician.

The Allient Sorbent Hemodialysis System is intended for the treatment of THE Allent Oorbont Homoutients where hemodialysis is prescribed by the ohysician. The Allient System functions as a traditional re-circulating sorbent hemodialysis system. Either single-needle or dual-needle access to the nemodialysis bystem . The system consists of the Allient hemodialysis machine, SORB™ series of sorbent cartridges, a single-use, sterile, disposable blood tubing set, a single-use disposable dialysate set, and various dialysate and infusate chemicals. The patient's blood is pumped from the access through a dialyzer and is returned to the patient.

The Allient® Sorbent Hemodialysis System, including the SORB™ series and HISORB™ series of cartridges, is to be used for the treatment of acute and chronic uremic patients where hemodialysis is prescribed by the physician.

The Allient Sorbent Hemodialysis System (Allient System) is intended for the treatment of acute or chronic uremic patients where hemodialysis is prescribed by the physician. The system consists of the Allient hemodialysis machine, SORB™ series of Sorbent cartridges, a single-use, sterile, disposable blood tubing set, a singleuse disposable dialysate set, and various dialysate and infusate chemicals. The system is recommended for use with a variety of dialyzers, access needles or access cannulae, which will be supplied by other manufacturers. The Allient System operates in a similar manner to standard hemodialysis systems currently approved for use. The only significant differences between the Allient System and standard hemodialysis machines are as follows: The Allient System utilizes a Sorbent cartridge to purify dialysate made from potable water. After passing through the dialyzer, the dialysate is recirculated to the dialyzer instead of being disposed of. The Allient System utilizes the Pulsar™ air-activated pump in contrast to the roller-activated pump commonly employed in traditional hemodialysis systems. The Pulsar blood pump is a dual-chamber pneumatically operated pump. All other aspects of Renal Solutions' Allient Sorbent Hemodialysis System process are identical to those employed in the standard "single pass" method of dialysis: there are no significant differences in the technology employed in Sorbent dialysis therapy between the Allient System and traditional methods. The Allient System functions as a traditional recirculating Sorbent hemodialysis system, similar to the REDY 2000 System. Either single-needle or dual-needle access to the patient is permitted. The patient's blood is pumped from the access through a dialyzer and is returned to the patient. Heparin is administered via a flow-controlled heparin pump capable of delivering rates of 0 to 3 milliliter per hour (mL/hr) in 0.5 mL/hr increments as well as an initial bolus of 0 to 10 mL. Blood-flow rates are settable in 10 milliliter per minute (mL/min) increments in the range of 200 to 400 mL/min in the dual-needle mode and 200 to 300 mL/min in the singleneedle mode. The dialysate delivery system consists of a container for dialysate. Sorbent regenerative cartridges, chemical infusion system to replace chemicals removed by the Sorbent cartridges, and an ultrafiltrate control system. The dialysate delivery system operates in a batch recirculating mode and continuously recirculates the dialysate through the cartridge. The cartridge removes dialyzed toxins from the dialysate and buffers the sodium and bicarbonate levels in the dialysate to maintain normal levels in the patient. The Acute mode of operation is intended for use in a hospital, acute or chronic-care facility, or dialysis clinic where the patient is continually monitored. The Acute mode of operation allows the clinician or dialysis technician to enter prescription parameters and machine operating parameters for each patient. The Allient System incorporates a Graphical User Interface (GUI) comprised of a touch-screen display, which controls the System software. The GUI is used to select the mode of operation of the Allient System and enter prescription data and machine control parameters during setup. This information is stored for future reference and verification prior to subsequent treatments. Treatment status and progress, in addition to machine status, is continually collected and displayed on the GUI screen to support treatment. The GUI's touch-screen technology also provides ease of use for Home patients. The Allient System incorporates a control system that contains a number of safety features and audible and visible alert and alarm functions to warn the operator or patient of unsafe conditions.

The SORB+ and HISORB+ Cartridges are to be used only with Renal Solutions' REDY Sorbant Dialysis systems for the treatment of acute and chronic uremic patients where hemodialysis is prescribed by the physician.

Sorbent (or regenerative) dialysis systems use the chemical action of a sorbent cartridge to remove urea and other waste materials from the dialysate and return the fresh dialysate to the dialysate holding tank. This fresh dialysate then passes through a dialyzer, removes additional waste material, and re-circulates through the sorbent cartridge to continue the process. This contrasts to traditional "single pass" dialysis, which uses purified water passing across the dialysate side of a dializer membrane in a single flow-through system to remove urea and other waste materials from the dialysis patient's bloodstream. Wastewater is routed to a drain and not recirculated. By re-circulating and refreshing the dialysate, the Renal Solutions' REDY System uses 6L of water per dialysis treatment. A traditional single pass dialysis system uses at least 120L of purified water during the typical 4 hour dialysis session. The SORB+ and HISORB+ Cartridges are intended to be used in a Renal Solutions REDY Sorbent Hemodialysis System as the chemical agents that absorb the urea and other waste material from the dialysate stream.