KORR ReeVue 8100 User manual

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KORR™ Medical Technologies, Inc.
REEVUE™ INDIRECT CALORIMETER
Model 8100
User Manual
Copyright ©2003, KORR™ Medical Technologies Inc. This document contains information,
which is proprietary and the property of KORR™ Medical Technologies Inc., and may not be
reproduced, stored in a retrieval system, translated, transcribed, or transmitted, in any form, or by
any means, without prior explicit written permission from KORR™ Medical Technologies Inc.
Manual Revision Date November 17,2017
User Manual KORR™ Part Number 9FG0049 Rev D
Caution: Federal Law restricts this device to sale by or on the order
of a physician.

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Contents
DEVICE DESCRIPTION....................................................................................... 5
INTENDED USE / INDICATIONS FOR USE........................................................ 5
CONTRAINDICATIONS....................................................................................... 5
CHAPTER 1:METABOLIC MEASUREMENTS............................................... 7
CHAPTER 2:PRODUCT INTRODUCTION ..................................................... 9
CHAPTER 3:QUICK INSTRUCTIONS FOR USE ......................................... 15
CHAPTER 4:EQUIPMENT SETUP ............................................................... 17
CHAPTER 5: CONDUCTING A METABOLIC RATE TEST .............................. 19
CHAPTER 6: POST TEST OPTIONS ................................................................ 25
CHAPTER 7:TROUBLESHOOTING ............................................................. 37
CHAPTER 8:SPECIFICATIONS ................................................................... 46
WARNINGS AND PRECAUTIONS.................................................................... 48
ADVERSE EVENTS........................................................................................... 49
MAINTAINING DEVICE EFFECTIVENESS ....................................................... 50
WARRANTY....................................................................................................... 51
SERVICE POLICY ............................................................................................. 52

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Device Description
The ReeVue™ model 8100 is an indirect calorimeter. It determines resting
energy expenditure (REE) by measuring oxygen uptake. Resting energy
expenditure is the amount of calories that a patient will expend (burn) in 24 hours
of resting.
REE is calculated using the Weir equation with an assumed RQ=0.83. See
“Weir, J.B., New Methods for Calculating Metabolic Rate with Special Reference
to Protein Metabolism. J. Physiology, 1949 109: pages 1-9”
Intended Use / Indications for Use
This device is intended for use in clinical and research applications to measure
oxygen uptake. The device determines resting energy expenditure (REE), also
referred to as resting metabolic rate (RMR) from the measured oxygen uptake
value. This device could be used in applications where the rate of oxygen
consumption or metabolic rate would typically be used. This could include:
•Diseases or conditions where patients are at risk for malnutrition
•Burn Patients
•Weight (Obesity) management
•Parenterally Fed Patients
•Enterally Fed Patients
•Inflammatory States (Sepsis)
Since the ReeVue™ does not measure carbon dioxide, it cannot measure
respiratory quotient (RQ). Therefore, it cannot be used in applications that
require measurement of RQ, such as determination of substrate utilization or
diagnosis of metabolic abnormalities beyond assessment of metabolic rate.
Since the ReeVue™ assumes the patient is breathing room air, it is not intended
for use in patients who are receiving supplemental oxygen at the time of testing.
Contraindications
None known.

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Chapter 1: Metabolic Measurements
Metabolic Testing
Metabolism is the process of converting food into heat or energy.
The rate and efficiency with which the body converts food to
energy is referred to as the metabolic rate. The most direct
method of measuring metabolic rate is to directly measure the
amount of heat produced by the body. This method is referred to
as direct calorimetry. Direct calorimetry is difficult and impractical,
as it requires a subject to be placed in a special insulated room
where the flow of heat into and out of the room is measured and
controlled. A more common method of metabolic rate
measurement is indirect calorimetry. In indirect calorimetry, the
amount of oxygen consumed rather than the amount of heat
produced is measured. Every calorie consumed requires a fixed
amount of oxygen to be converted to energy. The rate at which
oxygen is used is directly proportional to the rate of caloric
expenditure. In short, measuring the rate of oxygen consumption
is equivalent to measuring the amount of calories being used.
The ReeVue™ is an indirect calorimeter because it measures
oxygen consumption and calculated energy expenditure.
Oxygen Consumption
The number of calories burned by the body is directly proportional
to the amount of oxygen consumed. The ReeVue™ calculates
oxygen consumption by measuring the concentration of oxygen
inhaled and comparing it to the concentration of oxygen exhaled.
Oxygen concentration is measured during an automatic calibration
cycle prior to each test to ensure accuracy of the measurement.
The ReeVue™ also measures the temperature, relative humidity,
and barometric pressure to further improve the accuracy of the
calculations.
To measure oxygen consumption, all of the air exhaled by the
user must pass through the ReeVue™. Two one-way valves are
configured in the disposable MetaBreather™ to ensure that only
fresh air is inhaled and all exhaled gas passes through the hose
and into the ReeVue™. Because of the “one-way” valves in the
MetaBreather™, the user can never inhale gas from the hose or
the ReeVue™, thereby eliminating the possibility of cross-
contamination between users. It is important to use a nose clip
during a test so that no air escapes through the nostrils and is not
analyzed. Failure to use a nose clip would cause a lower REE
reading.

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Calorie Calculation
The number of calories expended for a given amount of oxygen
consumed is 4.813 calories (0.0048 Kcal) for every milliliter of
oxygen consumed. The exact relationship between calories
consumed and oxygen consumption is also affected by the
amount of carbon dioxide produced by the body as well as oxygen
consumed. However, the error that occurs by not considering
carbon dioxide is never larger than 1% and is usually less than
0.5% during a resting metabolic test.
Because the volume of oxygen changes depending on the
barometric pressure (elevation above sea level) and the room
temperature where the measurement is made, it is necessary to
convert all measurements to a standard temperature and
pressure. This standard pressure and temperature is called
STPD, (Standard Temperature and Pressure Dry). The
ReeVue™ measures barometric pressure, relative humidity and
temperature during each automatic calibration cycle. Using these
measured parameters, VO2and metabolic rate measurements are
all automatically compensated to standard (STPD) conditions.
Resting Energy Expenditure Measurements
A resting energy expenditure measurement is intended to
measure the number of calories that an individual would burn if he
or she were to be at rest for 24 hours. For the purpose of
comparing the results against published, predicted normal values,
it is important that the testing procedure follow some important
guidelines. Factors that affect metabolic rate should be
considered. In most cases, the measured resting metabolic rate
will not be done under theoretically ideal conditions, but it will be
indicative of the subject’s actual resting level during normal daily
conditions.
Basal energy expenditure (BEE) measurements are referred to,
but are rarely truly tested, because of the inconvenience and cost
to the individual. BEE testing requirements usually include a 24-
hour fast, monitored body cycles, and an overnight stay in a clinic.
You should note that the ReeVue™ will accurately measure BEE
if the test is administered properly. A resting energy expenditure
(REE) test, also called resting metabolic rate (RMR), is a measure
of the calories consumed while a subject is at rest. A REE test
should be taken when the patient is sitting, or lying, comfortably,
relaxed, and awake. This indicates how many calories the body is
using while in that resting state. This is measured by the
ReeVue™ and is represented in calories per day.

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Chapter 2: Product Introduction
2.1 Front Panel Description
The front panel is comprised of displays, keypad and connections. Figure 2.1
illustrates the ReeVue™ keypad. The various keys and their functions are
described on the following pages.
Figure 2.1 ReeVue™ Keypad
2.1.1 Key Group
A group of keys are located to the right of the display. Most of the user
interaction with the ReeVue™ is with these keys. Figure 2.2 shows the key
group.

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Figure 2.2 Key Grouping. The key group includes
the UP ARROW, DOWN ARROW, ENTER
(check), MENU, and the BACK keys.
2.1.2 Soft Keys
Underneath the display are two keys that do not have any labels. These are
called “Soft Keys.” The word “Soft” comes from the fact that the key functions
are defined by the software in the ReeVue™. When these keys are active, the
bottom line of the display will have text that defines their function. There is a Left
Soft Key and a Right Soft Key. Figure 2.3 is an example of a display showing
Soft Key labels.
Figure 2.3 Example of Soft Keys defined on the
display. In this example the “[DATA] Soft Key” is
selected by pressing the key on the left under the
display. Likewise, the “[PRINT] Soft Key” is
selected by pressing the key on the right under the
display.

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2.1.3 Key Functions
ON / STANDBY
This key is used to turn the device on and off. In standby
(off) mode there is still electrical power going to the
device, but the display will be dark.
NOTE: A green light appears next to this key when power
is applied. The external power supply must be
connected.
ENTER
This key is used to complete or confirm data entry.
For example, when entering the subject age, this key is
pressed after the correct age has been set.
UP ARROW
This key is used to increase values when entering data.
For example, when entering the subject age, this key is
pressed to increase the number of years.
DOWN ARROW
This key is used to decrease values when entering data.
For example, when entering the subject age, this key is
pressed to decrease the number of years.
BACK
This key is used to go back or to cancel an operation.
For example, if after entering the subject’s age a screen
appears to enter the subject’s weight. Pressing the
BACK key would cancel the weight entry and return you
back to the screen for entering age.
MENU
This key will bring up the menu. Various functions can be
done through the menu such as re-print a report or start a
new test.

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2.1.4 Display
The ReeVue™ has a text (LCD) display
that is used to show data, system status
information and display results. During
testing, the display is used to show the
measured parameters and to provide
user assistance messages.
2.2 Front Panel Connections
Air-Intake →This connection is to collect the exhaled air. Connect
the MetaBreather™ to the Air-Intake. The other end of the hose is
already connected to the mouthpiece.
Filter is shown connected to the "Air intake".

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It is recommended that a KORR™ bacterial filter be placed
between the Air-Intake and the hose to prevent contamination of
the ReeVue™ system.
2.3 Back Panel Connections
Power ←This connection labeled 12VDC is for the power adapter
input. Connect the power adapter supplied with the ReeVue™ to this
connection on the rear of the instrument. Use of a power supply
other than those provided by KORR™ medical technologies is not
recommended and can damage the unit and void the warranty.
Printer ↔The printer connection is on the rear of the ReeVue™
instrument. It will connect to your printer as if it were a PC. This
cable is included with the ReeVue™ Quick Start Kit.

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Chapter 3: Quick Instructions for Use
1. Turn on the unit.
CAUTION: Ensure the Single Patient Use “MetaBreather™” hose is not attached during
calibration. Remember to dispose of the hose/mouthpiece after use.
2. Wait for device to be ready.
oCalibration will start automatically when device is turned on.
oWhen calibration is complete the device indicates
“Waiting for First Breath”.
3. Begin the test.
oExtend the hose tofull length.
oPlace the mouthpiece of the NEW Single Patient Use “MetaBreather™” in the
patient’s mouth.
oAttach the filter and the hose to the “Air Intake” on the device.
oPlace the nose clip securely on the patient’s nose.
4. Perform the test.
oAdvise the patient that the lips need to create a seal around the mouthpiece
oEncourage the patient to relax and breathe normally.
oWhen test is complete the device indicates
“Test Complete”
“Remove the Hose”.
oDispose of the “MetaBreather™” hose, mouthpiece and nose clip after use.
5. Enter the patient’s information (Y/N).
oIf comparison data and BMI calculation is desired, select “Yes” then use the
arrow keys to enter the patient’s age, weight, height, and gender.
oOtherwise, select “No.”
6. Print the report.
oThe report can be printed after the patient’s information has been entered, by
pressing the “Print” soft key.
oThe machine will automatically begin the “Drying Mode” when ON/OFF key is
pressed. When performing successive tests this mode may be bypassed by
pressing the ON/OFF key twice.
A more detailed description of each of these steps is found on the following pages.

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Chapter 4: Equipment Setup
4.1 Environment
In order for the ReeVue™ to operate properly, it should be placed in a properly
ventilated area. The device performs within specifications when used at
temperatures between 59°F (15°C) and 86°F (30°C).
4.2 Parts and Connections
Upon shipment, the ReeVue™ is supplied with a power adapter and power cord.
If you intend to use a printer with the ReeVue™, connect the printer to the
ReeVue™ using the cable and adapter provided in the Quick Start Kit before
turning on the ReeVue™. The power cord plugs into the wall and the power
adapter then plugs into the power plug on the back of the ReeVue™.
4.3 On/Standby control
Press the On/Standby key on the front of the ReeVue™ to turn on the system.
The green light below the [on/off] key indicates that the device is powered on.
Pressing the on/standby key when the device is already on will place the device
into “reset mode”. In this mode, an internal fan is engaged to move air through
the ReeVue™ to prevent condensation that can occur during normal use and
ensure longer system life. The ReeVue™ will automatically turn off after 20
minutes. Only connect the mouthpiece when the system is being used for a test.
No mouthpiece should be connected any time when the internal fan is running.
4. 4 Display Screen
The splash screen appears when the device is first turned on. Line number two
changes from Firmware Version to EEP File Version to Print File Names.
REEVUE
ver 2.02.10
SN 10204
KORR Medical Tech.
Figure 4.1 ReeVue™ Splash Screen

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