K Number
K112427
Device Name
BICARB MIXING AND DISTRIBUTION SYSTEM
Manufacturer
Date Cleared
2012-01-26

(156 days)

Product Code
Regulation Number
876.5820
AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP Authorized
Intended Use
The Isopure Sodium Bicarbonate Mixing and Distribution System is intended to be used in Hemodialysis facilities for the mixing, storage and distribution of Bicarb liquid concentrate to be used in the treatment of Hemodialysis patients.
Device Description
The Isopure Sodium Bicarbonate Mixing and Distribution System is designed to mix sodium bicarbonate powder into a liquid solution based on the recommended mixing procedures from the powder manufacturers. Once the powder is mixed into a liquid solution and verified for content accuracy, the solution is transferred to an independent distribution tank for transfer through a loop to the individual dialysis machines or to fill jugs which then can be transported to the individual dialysis machines when no distribution loop exists. The Isopure Sodium Bicarbonate Mixing and Distribution System features the patented SOLUBILIZER™, which utilizes a large volume of water spinning in a vortex manner to dissolve dry powder into a liquid solution that is drawn into a mix tank. The solution is mixed with AAMI quality water according to specifications outlined by the manufactures for the bicarbonate powder. Once the solution has been dissolved and mixed, the solution can be transferred from the mixing tank to the storage delivery tank for distribution to the loop or jugs. The tanks and the SOLUBILIZER™ are sealed to reduce microbial contamination. The sealed design also facilitates CO2 recovery and gassing off of CO2 during the mixing procedure. The entire system is controlled by programmable control logic (PLC), which operates the system. The PLC will control the mixing, the delivery and disinfection of the complete system. The system PLC is operated through an HMI touch screen which displays the critical aspects of the system. including the operational stages, real-time indication of various steps, and alarm conditions.
More Information

Not Found

No
The description focuses on mechanical and chemical processes controlled by programmable logic (PLC), with no mention of AI or ML algorithms for decision-making or analysis.

No
The device is a system for mixing, storing, and distributing sodium bicarbonate liquid concentrate for hemodialysis patients, but it does not directly treat the patient. It prepares a substance used in treatment.

No

Explanation: The device is designed to mix, store, and distribute sodium bicarbonate liquid concentrate for hemodialysis treatment. It does not perform any diagnostic function.

No

The device description clearly outlines physical components such as tanks, a SOLUBILIZER™, and a distribution loop, indicating it is a hardware system with integrated software (PLC and HMI).

Based on the provided information, this device is not an In Vitro Diagnostic (IVD).

Here's why:

  • Intended Use: The intended use is for "mixing, storage and distribution of Bicarb liquid concentrate to be used in the treatment of Hemodialysis patients." This describes a system for preparing and delivering a solution for therapeutic use in a patient, not for performing tests on samples taken from the human body.
  • Device Description: The description details a system for dissolving and mixing sodium bicarbonate powder with water and then distributing the resulting solution. This is a preparation and delivery system, not a diagnostic test.
  • Lack of IVD Characteristics: The document does not mention any of the typical characteristics of an IVD, such as:
    • Analyzing biological samples (blood, urine, tissue, etc.)
    • Detecting or measuring analytes in biological samples
    • Providing information for diagnosis, monitoring, or screening of diseases or conditions

The device is clearly intended to prepare a solution for use in a medical treatment (hemodialysis), which falls under the category of a therapeutic device or a device used in conjunction with a therapeutic procedure, rather than an in vitro diagnostic device.

N/A

Intended Use / Indications for Use

The Isopure Sodium Bicarbonate Mixing and Distribution System is intended to be used in Hemodialysis facilities for the mixing, storage and distribution of Bicarb liquid concentrate to be used in the treatment of Hemodialysis patients.

Product codes (comma separated list FDA assigned to the subject device)

FIN

Device Description

The Isopure Sodium Bicarbonate Mixing and Distribution System is designed to mix sodium bicarbonate powder into a liquid solution based on the recommended mixing procedures from the powder manufacturers. Once the powder is mixed into a liquid solution and verified for content accuracy, the solution is transferred to an independent distribution tank for transfer through a loop to the individual dialysis machines or to fill jugs which then can be transported to the individual dialysis machines when no distribution loop exists.

The Isopure Sodium Bicarbonate Mixing and Distribution System features the patented SOLUBILIZER™, which utilizes a large volume of water spinning in a vortex manner to dissolve dry powder into a liquid solution that is drawn into a mix tank. The solution is mixed with AAMI quality water according to specifications outlined by the manufactures for the bicarbonate powder. Once the solution has been dissolved and mixed, the solution can be transferred from the mixing tank to the storage delivery tank for distribution to the loop or jugs. The tanks and the SOLUBILIZER™ are sealed to reduce microbial contamination. The sealed design also facilitates CO2 recovery and gassing off of CO2 during the mixing procedure.

The entire system is controlled by programmable control logic (PLC), which operates the system. The PLC will control the mixing, the delivery and disinfection of the complete system. The system PLC is operated through an HMI touch screen which displays the critical aspects of the system. including the operational stages, real-time indication of various steps, and alarm conditions.

Mentions image processing

Not Found

Mentions AI, DNN, or ML

Not Found

Input Imaging Modality

Not Found

Anatomical Site

Not Found

Indicated Patient Age Range

Not Found

Intended User / Care Setting

Hemodialysis facilities

Description of the training set, sample size, data source, and annotation protocol

Not Found

Description of the test set, sample size, data source, and annotation protocol

Not Found

Summary of Performance Studies (study type, sample size, AUC, MRMC, standalone performance, key results)

Non-Clinical Testing Summary:
The purpose for the Sodium Bicarbonate Mixing and Distribution System, as for the predicate device, is to provide a bicarbonate solution suitable as part of the dialysate mixture which, along with an acid solution and RO water, is used to treat dialysis patients. The system has undergone 100% testing to ensure substantial equivalence to the Pure Water, Inc. predicate device. Both systems are fully capable of meeting the mix requirements specified for a suitable sodium bicarbonate solution.

The testing area consists of all components of a water room that would normally be present at a dialysis clinic, including media tanks, a softener, filtering devices, and a reverse osmosis machine. With pure water provided by the RO system and associated components, the Sodium Bicarbonate Mixing and Distribution System was tested repeatedly for proper operation.

The Mix procedure, which performs the operation of mixing the sodium bicarbonate powder into a solution suitable for delivery to a patient dialysis machine, was run for all selectable volumes of bicarbonate. Using the same brand of bicarbonate typically used in an operating clinic, each mix batch was tested for the target conductivity of the solution to confirm the correct mixture, and then transferred to the Distribution Tank. The distribution function was then tested to ensure that circulation of the solution through the loop occurred as expected.

Key Results:
The basic mixing and distribution of sodium bicarbonate in the Isopure system is equivalent to that of Pure Water, Inc.'s original Bicarbonate Mix, Storage and Distribution System cleared April 10, 2000 under Application number K993272. Changes to the mix portion of the system reflect current recommended mixing procedures outlined by the powder manufacturers such as "Vigorous mixing and propeller style mixers can drive carbon dioxide from the solution''. "Add water for total volume of mixed solution. Mix again for approx. 10 minutes. Ensure that the powder is dissolved in solution". Changes reflected in this submission to the mixing of the sodium bicarbonate were performed to meet the current requirements of the powder manufacturers, such as the removal of the small batch mixer with a propeller and replacement to a hopper and an inductor located in the mix tank.

Key Metrics (Sensitivity, Specificity, PPV, NPV, etc.)

Not Found

Predicate Device(s): If the device was cleared using the 510(k) pathway, identify the Predicate Device(s) K/DEN number used to claim substantial equivalence and list them here in a comma separated list exactly as they appear in the text. List the primary predicate first in the list.

K993272

Reference Device(s): Identify the Reference Device(s) K/DEN number and list them here in a comma separated list exactly as they appear in the text.

Not Found

Predetermined Change Control Plan (PCCP) - All Relevant Information for the subject device only (e.g. presence / absence, what scope was granted / cleared under the PCCP, any restrictions, etc).

Not Found

§ 876.5820 Hemodialysis system and accessories.

(a)
Identification. A hemodialysis system and accessories is a device that is used as an artificial kidney system for the treatment of patients with renal failure or toxemic conditions and that consists of an extracorporeal blood system, a conventional dialyzer, a dialysate delivery system, and accessories. Blood from a patient flows through the tubing of the extracorporeal blood system and accessories to the blood compartment of the dialyzer, then returns through further tubing of the extracorporeal blood system to the patient. The dialyzer has two compartments that are separated by a semipermeable membrane. While the blood is in the blood compartment, undesirable substances in the blood pass through the semipermeable membrane into the dialysate in the dialysate compartment. The dialysate delivery system controls and monitors the dialysate circulating through the dialysate compartment of the dialyzer.(1) The extracorporeal blood system and accessories consists of tubing, pumps, pressure monitors, air foam or bubble detectors, and alarms to keep blood moving safely from the blood access device and accessories for hemodialysis (§ 876.5540) to the blood compartment of the dialyzer and back to the patient.
(2) The conventional dialyzer allows a transfer of water and solutes between the blood and the dialysate through the semipermeable membrane. The semipermeable membrane of the conventional dialyzer has a sufficiently low permeability to water that an ultrafiltration controller is not required to prevent excessive loss of water from the patient's blood. This conventional dialyzer does not include hemodialyzers with the disposable inserts (Kiil type) (§ 876.5830) or dialyzers of high permeability (§ 876.5860).
(3) The dialysate delivery system consists of mechanisms that monitor and control the temperature, conductivity, flow rate, and pressure of the dialysate and circulates dialysate through the dialysate compartment of the dialyzer. The dialysate delivery system includes the dialysate concentrate for hemodialysis (liquid or powder) and alarms to indicate abnormal dialysate conditions. This dialysate delivery system does not include the sorbent regenerated dialysate delivery system for hemodialysis (§ 876.5600), the dialysate delivery system of the peritoneal dialysis system and accessories (§ 876.5630), or the controlled dialysate delivery system of the high permeability hemodialysis system § 876.5860).
(4) Remote accessories to the hemodialysis system include the unpowered dialysis chair without a scale, the powered dialysis chair without a scale, the dialyzer holder set, dialysis tie gun and ties, and hemodialysis start/stop tray.
(b)
Classification. (1) Class II (performance standards) for hemodialysis systems and all accessories directly associated with the extracorporeal blood system and the dialysate delivery system.(2) Class I for other accessories of the hemodialysis system remote from the extracorporeal blood system and the dialysate delivery system, such as the unpowered dialysis chair, hemodialysis start/stop tray, dialyzer holder set, and dialysis tie gun and ties. The devices subject to this paragraph (b)(2) are exempt from the premarket notification procedures in subpart E of part 807 of this chapter subject to the limitations in § 876.9.

0

JAN 2 6 2012

Isopure Corp

I. 510(K) SUMMARY

This summary of 510(k) safety and effectiveness information is submitted in accordance with the requirements of SMDA 1990 and 21 CFR §807.92.

| Submitter's Name: | Isopure Corp
141 Citizens Blvd.
Simpsonville, KY 40067
Telephone: (502) 722-1000 |
|-------------------|-------------------------------------------------------------------------------------------|
| Contact person: | Kevin C. Gillespie |

Date of Summary: January 24, 2012

י

Device Name: Isopure Sodium Bicarbonate Mixing and Distribution System

Device Classification Name: Dialysis Holding Tank (876.5820, FIN)

Device Description: The Isopure Sodium Bicarbonate Mixing and Distribution System is designed to mix sodium bicarbonate powder into a liquid solution based on the recommended mixing procedures from the powder manufacturers. Once the powder is mixed into a liquid solution and verified for content accuracy, the solution is transferred to an independent distribution tank for transfer through a loop to the individual dialysis machines or to fill jugs which then can be transported to the individual dialysis machines when no distribution loop exists.

The Isopure Sodium Bicarbonate Mixing and Distribution System features the patented SOLUBILIZER™, which utilizes a large volume of water spinning in a vortex manner to dissolve dry powder into a liquid solution that is drawn into a mix tank. The solution is mixed with AAMI quality water according to specifications outlined by the manufactures for the bicarbonate powder. Once the solution has been dissolved and mixed, the solution can be transferred from the mixing tank to the storage delivery tank for distribution to the loop or jugs. The tanks and the SOLUBILIZER™ are sealed to reduce microbial contamination. The sealed design also facilitates CO2 recovery and gassing off of CO2 during the mixing procedure.

The entire system is controlled by programmable control logic (PLC), which operates the system. The PLC will control the mixing, the delivery and disinfection of the complete system. The system PLC is operated through an HMI touch screen which displays the critical aspects of the system. including the operational stages, real-time indication of various steps, and alarm conditions.

Intended Use: The Isopure Sodium Bicarbonate Mixing and Distribution System is intended to be used in Hemodialysis facilities for the mixing, storage and distribution of Bicarb liquid concentrate to be used in the treatment of Hemodialysis patients.

Legally Marketed Devices to which Equivalence is Claimed: Isopure Corp purchased the Pure Water Inc's Bicarb Mixing, Storage and Distribution System from Pure Water Inc. Isopure intends to manufacture and market the device at its Simpsonville KY location. The intended use of the device has not change, nor have the functionality and any of the contacting components.

Descriptive Summary of Technological Characteristics and Those of Predicate Devices: The technological characteristics of the device are the same as the original submitted device under 501(k) K993272, Pure Water, Inc.'s Bicarb Mix, Storage and Distribution System cleared on April 10, 2000.

1

112427 OF 7 2 466

Isopure Corp

Summary of Comparisons of Components
Pure Water, Inc. K993272Isopure Corp K112427
Physical and Operational Comparison
Pure Water system features two separate tank
configuration one for mixing the solution and
one for storage of the solution. These tanks are
not connected together allowing the system to
be configured on site.This was changed to a single system where
both tanks are secured on the same
skid/platform. This allows the ease of piping
the two tanks together and reduces the chance
of "dead legs" in the system
Mix tank features a one piece molded open-top
cone bottom high density polyethylene tank with a
welded NDPE stand and hinged bolt-on cover with
a mixer mounted on the cover.Mix tank features a one piece molded closed top
cone bottom high density polyethylene tank with a
welded NDPE stand. A powder hopper consisting
of high density polyethylene mounted between the
tanks to hold powder and a inductor replaces the
mixer
Filling of the mix tank is operator dependent.
The operator must fill the mix tank to markings
on the side of the tank by turning on a valve
then turning off the same valve once the level
is achieved. This same process is required once
the powder is added.This was changed to an automated process.
The operator can adjust the initial fill and the
final fill from a set-up screen, but once set, the
system will fill the exact same level every time
the mix is selected. The initial fill and the final
fill levels are determined by the operator
selecting the desired amount of bicarb to be
mixed i.e. 1 bag, 2 bags, 3 bags, or 4 bags. A
calibrated flow meter will determine the exact
amount of water entering the mix tank.
Mixing the solution is accomplished by small
batch mixer 1750 rpm which is clamped to the
side of the mix tank.This was changed to an inductor located inside
the mix tank. The reason for this change is
recommendation for mixing by the powder
manufacturers as well as AAMI RD52:2004.
The powder is drawn into the system and
mixed with water at the hopper located on the
front of the system.
Mix for 30 minutes and check for correct
mixture by specific gravity method or
conductivity as per your facility requirements.
Once mixing is complete, the mixer switch
must be turned to the off position.Mix will occur automatically once all of the
powder has been dissolved. The mix cycle has
been changed to 10 minutes per the powder
manufacturer's recommendations.
Connect the mix tank hose HM1 to the storage
tank. Operate transfer switch to the "ON"
position to pump liquid concentrate from the
mix tank to the storage tank. Remove hose
HM1 from the storage tank and replace plug
for the tank.This was changed with the two tanks on the
same skid. Once the solution is automatically
mixed, the system will require the operator to
verify that the batch is correctly mixed. Once
the operator passes the batch, the system will
automatically turn on the mix/transfer pump
then rotate AV1 (3-way actuated valve), and
AV2 (3-way actuated valve) to transfer the
solution from the mix tank to the distribution
tank. Once the transfer is complete, the system
will automatically turn off the mix/transfer
pump and rotate AV1 and AV2 back to their
original positions. After complete, the system
will open the drain valve and rinse down the
mix tank, hopper, and associated piping with
RO water in preparation to mix a new batch of
bicarb. If bicarb solution still exists in the
distribution tank, the system will hold the mix
solution in the mix tank until the low level
float is activated in the distribution tank. Once
activated, the system will automatically up to
75 gallons of mixed solution. If 100 gallons
(380 liters) is in the mix tank, the system will
only transfer over 2/3 of this solution on the
first low tank alarm then the remaining
solution on the next low tank activation.
Centrifugal direct drive transfer pump 25 gpm at 40
psi to transfer the mixed solution from the mix tank
to the distribution tank. The pump is constructed of
Glass Reinforced Noryl with a stainless steel wear
ring and impeller hub.Centrifugal magnetic drive transfer pump 40 gpm
at 21 psi to mix the solution and transfer the
solution to the distribution tank. The pump is
constructed of Glass Fiber Reinforced
Polypropylene. With a Polypropylene magnetic
capsule and alumina ceramic spindle.
Piping used to supply RO treated water to the mix
tank and to transfer the mixed solution from the
mix tank to the distribution tank is schedule 80
PVC pipe and fittings.Piping used to supply RO treated water to the mix
tank and to transfer the mixed solution from the
mix tank to the distribution tank is schedule 80
PVC pipe and fittings.
Two-way ball valve is used to drain the mix tank as
well as a container filling valve located on the front
of the tank. The two way valve is constructed of
schedule 80 PVC with Teflon seats and EPDM "O"
rings.Two-way ball valve is used to drain the mix tank as
well as a container filling valve located on the front
of the tank. The two way valve is constructed of
schedule 80 PVC with Teflon seats and EPDM "O"
rings. A 24 VDC actuated ball valve is connected
to the valve which will allow automatic actuation
of the valve during operation
Three way true union ball valves are used to direct
the mixed solution from the mix tank to the
distribution tank. The valve is schedule 80 PVC
with Teflon seats and EPDM "O" rings.Three way true union ball valves are used to direct
the mixed solution from the mix tank to the
distribution tank. The valve is schedule 80 PVC
with Teflon seats and EPDM "O" rings.
Auto lock fittings are used to connect lines from
the mix tank to the distribution tank. Auto lock
fittings are constructed of food grade Acetal and
Nitrite.The Auto lock fittings and hose have been removed
from the system as a potential source of
contamination.
A conductivity meter has independent high/low set
points that control to SPDT relays. The controller
features a 1 mV per digit ± 0.5% ± 1 mV recorder
output interface with a recorder or data logger to
make permanent records. Automatic temperature
compensation is provided. By a 10KΩ thermistor
built in to the conductivity cell.The Signet 8860 Dual Channel
Conductivity/Resistivity Controller is a two-
channel input device equipped with three saleable 4
to 20 mA outputs and four programmable relays. A
selector switch activates two open collector outputs
in place of two of the relays for extraordinary
output versatility. Dual input and advanced control
capability, including percent rejection, difference
The 27500 Teflon rotary tank cleaning nozzle
features a spray head that is rotated by the
pressurized flow of the spray solution. The
compact nozzle produces effective solid stream
sprays and can be operated at pressures of 10 - 50
psi.
3/8" Solenoid valve consisting of glass filled
polypropylene and a viton is used to administer RO
water to the mix tank.and ratio calculations, together with Signet
Conductivity Sensors. Conductivity/Resistivity
electrodes are designed to provide versatile
installation and accurate sensing across a very
broad dynamic range. These electrodes are built
with a controlled surface finish to ensure accuracy
and repeatability. The standard electrode is
constructed 316 SS or Titanium, but there are other
materials available for maximum chemical
compatibility. Reversible threads or sanitary
flanges allow for maximum installation versatility.
The 27500 Teflon rotary tank cleaning nozzle
features a spray head that is rotated by the
pressurized flow of the spray solution. The
compact nozzle produces effective solid stream
sprays and can be operated at pressures of 10 - 50
psi.
3/8" Solenoid valve consisting of glass filled
polypropylene and a viton is used to administer RO
water to the mix tank. This valve is also used to
administer RO water to the hopper and used for
Storage tank is a high density cone bottom tank
with a sealed cap. A 0.2 uS vent filter provides
filtration of the replacement air in the tank. The
distribution tank is mounted to a NDPE tank stand.
Distribution of bicarb solution; verify Loop
Pump switch on the Bicarb Controller is in the
"ON" position. Automatic operation – ensure
that the power switch on AUTOCHEM 1000 is
in the "OFF" position and all indicator lamps
are extinguished. Verify LOOP PUMP switch
on the RELAY CONTROLLER is in the "ON"
positiondisinfection.
Storage tank is a high density cone bottom tank
with a sealed cap. A 0.2 uS vent filter provides
filtration of the replacement air in the tank. The
distribution tank is mounted to a NDPE tank stand
Distribution is automated so when the
Distribute button is pushed, the distribution of
the bicarb will begin to purge the distribution
line with bicarb. The return loop valve will
divert the return loop to drain until the
conductivity of the return loop solution is