Zimmer ergo k User manual

Zimmer MedizinSysteme GmbH
Junkersstraße 9
D-89231 Neu-Ulm
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Fax [phone]
www.zimmer.de
ergo k
User Manual

1
These instructions form a part of the unit and must be kept with it at all times.
Full observation of these instructions is a requirement for the correct
application and operation of the equipment and for the consequent safety of
both patient and operator.
Ergo K
Ergo K with
Blood Pressure Module
(optional)
Contents: Page
1Unit Description
Short Description
2
2Start-up
Short Start-up / Assembly / Installation / Set-up / Function Test / Controls
3
3
Operating the Unit
Load Profiles / Profile Screens
9
4
Ergometric Session
Preparation / Remarks / Performing
13
5
Blood Pressure Module (optional)
Positioning the Cuff / Procedure
15
6
Safety / Warnings 19
7
Cleaning and Disinfection 22
8Rear Panel
Connections
23
9
Service Menu
Entering / Settings / Testing / Calibration Test
24
10
Accessories 29
11
Conformity Declaration 30
12
Technical Data
Ergometer / Blood Pressure Module
31
13
Trouble Shooting 33
Ident Nr. PL58GB 09/05 Rights of Revision reserved.This Manual is intended as a user guide only.
Zimmer MedizinSysteme GmbH maintains no liability for omissions or errors or damage resulting thereof.

2
Unit Description
Short Description 1
What is the Ergo K? The Ergo K is an ergometer with defined and reproducible physical loads, well
suitable for both diagnostic and therapeutic procedures.
Where is Ergo K used? Ergo K is very versatile and optimally suited for ergometry and professional
diagnoses in clinical, private and rehabilitation facilities.
The multi-featured ergometer can be connected to various equipment including
ECG recorders and personal computers, as well as integrated into a larger
systems, i.e. Ergowatch 3000.
What are the advantages of
Ergo K?
Operational Features
•Extremely low foot passage for easy access
•Independent load regulation from 10 to 1000 Watts
•Patient weight capacity up to 150 kg
•Stable chassis with stable dual-tube front frame
•Smooth seat height adjustment
•Horizontal seat adjustment
•Universal mounting for commercially available seats
•Serial interface and remote start for interconnection with ECG recorders and
PC-EKG units
Handling Features
•Simple and self explanatory operation
•Control panel adjustable towards patient or therapist / doctor
•Display for all relevant information
•Individual load profiles programmable
•Load profiles manually adjustable
•Cadence Display
Optional Blood Pressure Module
•Automatic blood pressure measurement during the stress test
•The Ergo K can be upgraded with an optional blood pressure module at
anytime
Remarks Ergo K is only to be used and operated by trained and authorized personnel.

3
Start-up
Short Start-up 2
Power Supply §Connect the power cable to power supply
§Switch on Ergometer using switch “8”.
(See schematic diagram on page 4)
Patient Preparation §Request patient to get on the ergometer and provide instructions
regarding ergometer functions and procedures.
Seat and Handle Bar
Adjustment
§Handle bar can be adjusted using lever “7” and seat height by using lever
“4” to accommodate patient’s size.
§
Program Selection §Select load cycle program using the arrow on the cockpit.
Start Load §Start load by pressing the “START/STOP” button.
Stop §Monitor patient during load cycle. Should problems arise, stop load cycle
immediately.
Recovery Phase Once the “START/STOP“ button is pressed, the load cycle switches
automatically to a recovery phase.
Cycle Termination §Pressing „START/STOP“ button again terminates the load cycle
program.
Warning! When the ergometer is combined with the optional blood pressure module, follow
instructions indicated in Chapter 5, “ Blood Pressure Module”, and the information
sheet, “Ergometric Blood Pressure Measurement ” included with the ergometer.

4
Start -Up
Assembly 2
Assembly Ensure that the ergometer is not located in:
-wet, humid or dusty areas
-direct sunshine or near other warm sources
-acidic steam or in contact with acidic fluids, which could causes irreparable
damage
-near vicinity of x-ray or diathermic systems, motors, or transformers
-explosive environments.
Ensure that the ergometer is placed horizontally. The slope of the floor should
never exceed 10°. Otherwise, the stability of the unit of reduced.
The ergometer can be transported by lifting both front tubes and pushing or pulling
the ergometer using the back rollers.
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5

5
Start-up
Assembly / Installation / Set-up 2
Foot Adjustment Two adjustable floor pads are located under the front end of the base plate to level
out uneven floors.
Castors After lifting the front end of the ergometer, it can be pushed or pulled in either
direction on these two castors.
Control Panel The control panel incorporates all displays and buttons to control and operate the
unit. The control panel can be mounted in ‘forward’ or ‘backward’ direction so that it
either faces the patient or the physician for setting the controls.
Seat Height
Adjustment
The height of the seat can be adjusted continuously. Release the lock of the seat
support by lifting lever “4” and slide the seat to the desired position. Note the seat
height indicator “5”.
Never release lever lock “4” with the patient on the seat!
Seat Height
Indicator
The height of the seat support is indicated in field “5”.
Horizontal Seat
Position
The seat can be moved horizontally. Release the lock by turning the knob under
the seat ”6” and slide the seat to the desired position. Then re-secure the seat by
turning the knob.
Handle Bar
Adjustment
The handle bar can be tilted up and down to adapt to the different arm lengths of
the various patients. Release the lock by turning the lever “7” ccw. After tilting the
handle bar to the required position, re-secure the lock by turning the lever cw until it
clicks.
Ensure the clamping lever has clicked into to a locked position!
Mains
Connection
Power connector, mains switch and line fuses are located at the
rear panel of the ergometer.
Connect the supplied power cable to the equipment connector and
plug the other end into a wall outlet.
Mains Switch The mains switch of the ergometer is also located on the rear panel.
It disconnects the entire unit from the line voltage.
Located beside the equipment power connector is a slot for holding
two slow-blow fuses ‘T 1.6 AL’. When replacing a blown fuse, ensure the new fuse
link has the same rating.
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2
3
4
5
6
7
9
8

6
Start-up
Installation / Set-up / Function Test 2
Switch the
Unit on
Turning the unit on activates all displays and indicators for approx.3 sec. All LED
displays show the digit ‘8’ and all fields of the LCD screen show the character ‘ ¦ ’.
All other indicators are activated for the same duration. Confirm that all segments
light up properly. Only then you can be sure that the measurements are presented
correctly.
Afterwards, the following information appears briefly on the screen:
Then the unit enters the normal operating mode. It indicates the load profile used
last before the unit was turned off.
Function Test §Select program, “ Level Test ST1” using the arrow keys
§Start ergometry by pressing the „START/STOP“ key.
§A load should now be detected when the pedals are pressed.
§The load can be increased in 25W steps by using the “+” key.
§The increase should be detectable when pedals are pushed.
§End the test by pressing the „START/STOP“ key twice.
Warning Visually inspect the ergometer before each use for damage.
Should damage or malfunction be detected, which could lead to safety risks for the
patient, contact service personnel before further ergometric sessions.
* * ERGOMETRY * *
* * ERGO K * *
Welcome to Zimmer Elektromedizin!

7
Start-up
Controls 2
Status Display The large LED status displays show the momentary data during a program run.
The left part indicates the currently applied load, the center part shows the speed
achieved by the patient and the right part indicates the elapsed test duration.
Programming and
Result Screens
In stand-by Mode
During the exercise
After the exercise
the screen shows the selected load program.
the screen shows the operating mode and the
measured blood pressures, if applicable.
the screen shows the achieved results.
Program Display The LEDs (light-emitting diodes) indicate the load program just selected. Details
can be obtained from the LCD screen.
Program Selection These two arrow keys are used for selecting the load program.
The program currently selected is indicated by the LEDs described above.
Programming Use the PROG button to scroll through the various points of the presently active
load profile. The point ready for adjustment flashes.
Key „HOLD“ (see Page 10)
Changing the
Program Data
The (flashing) value can be altered by means of the “+“ or “-“ button.
Exit the programming mode by scrolling back to the program name or
by simply pressing the END button.
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3
4
5
2
6
1
2
8
5
6
10
4
3
9
7

8
Start-up
Controls 2
Load
START / STOP
Start the load profile presently indicated in the LCD window by pressing the
“START/STOP“ button. The preset values are selected automatically.
•Press the “START/STOP“ button to stop the load cycle and to
switch over the recovery phase automatically.
•Press the “START/STOP“ button again to terminate the program.
Starting the
Measurement
If your ergometer is provided with the blood pressure module you can start a
manual measurement of the blood pressure by pressing the “NIP“ button.
During an active load program you can initiate a manual intermediate
measurement.
This button is always active, even if the ergometer is controlled by a PC or an
ECG recorder. Please remember, that not all ECG units take over the results of
such manually initiated measurements and present them on the screen or on
paper.
Speed Range
Display
The speed of the tread crank is shown on the digital LED display.
As soon as you leave the regulated load range the display starts to
flash.
In addition, the speed of the crank is indicated by an LED trend
indicator. The green diode in the center indicates an optimum speed,
while the red LED to the right signals that the speed is too high and
the red LED to the left signals that the speed is too low.
External Control,
Button Lock !
Please note that all buttons are locked while the load is controlled
by an external unit like an ECG or PC-ECG. Only the “NIP“ button
is functional for starting a manual blood pressure measuring cycle.
This condition is indicated by the EXT light.
7
8
9
10

9
Operating the Unit
Load Profiles / Profile Screens 3
Load Profile To perform an exercise test under load, the program must first be defined. The
following load profiles are readily available for selection:
Square Load Test (RT)
This profile provides a constant load for a certain time after which a recovery phase
can be defined.
4 Different Stepped Load Tests (ST1 to ST4)
Following a variable basic load, this profile increases the load by predefined
increments in steps, after which a recovery phase can be defined.
Pulse-Steady-State-Test (PSS)
In this profile, the load is regulated by the unit so that the heart rate of the patient
does not exceed a preset limit value. Of course, this test requires an ECG recorder
or pulse sensor (i.e.. the optional ECG amplifier).
Interval Test (INT)
The interval test consists of a number of short full load phases, which are
separated by prolonged no-load periods.
External Control (EXT)
This profile cannot be selected at the ergometer. The related pilot light signals that
the load is determined by an external unit like an ECG recorder or a PC-ECG.
Explanation Load profile / Profile Screens
One of the available profiles should be selected prior to having the patient begin
exercise under load. Press the arrow button “?. “ or “?. “ until the lamp of the
desired load profile lights up. The indicated values can still be altered individually.
Square load
NIBP OFF
Power : 100 W
Duration : 10 min
Trail.: 25 W 5 min
This test provides a constant load (100 W in this example) for a certain duration
(i.e.. 10 min), followed by a recovery phase with a reduced load (i.e.. 25 W) that is
maintained for a certain duration (i.e.. 5 min).
The blood pressure measurement is not activated in this example. (here NIBP
OFF).
Stepped load test
NIBP OFF
Power : 25 W PR 25W
Steps : 10 x 1 min
Trail.: 25 W 5 min
This test starts with a preset basic load, after which the load is increased in steps.
The example shows a profile of 10 steps of 25 W each for a duration of 1 min.,
followed by a recovery phase with a reduced load (i.e.. 25 W) that is maintained for
a certain duration (i.e. 5 min).
The blood pressure measurement is not activated in this example (NIBP OFF).
Rectangle
Steptest 1

10
Operating the Unit
Load Profiles / Profile Screens 3
Pulse-Steady-State-Test
NIBP OFF
Power : 25 W PR 1W
HR: 110 / min 20 min
Trail.: 25 W 5 min
The test in this example starts with 25 W. Then the load increases by 1 W/sec until
the heart rate reaches 110 beats per minute. From then on the load is regulated in
1W steps in order to keep the heart rate constant. In this example, the test duration
is 20 minutes., followed by a recovery phase with a reduced load (i.e. 25 W) that is
maintained for a certain duration (i.e. 5 min).
The blood pressure measurement is not activated in this example (NIBP OFF).
Interval test
NIBP OFF
Power : 75 W Pause: 0 W
10 cycl. 20 100 sec.
Trail.: 25 W 5 min
The interval test subjects the patient to a high load (75 W in this example) for a
short period, followed by a pause with no load (0 W). The number of load cycles
(10), the load duration (20 sec) and the recovery phase (100 sec) are adjustable.
A recovery phase follows with a reduced load (i.e. 25 W) that is maintained for a
certain duration (i.e. 5 min).
The blood pressure measurement is not activated in this example (NIBP OFF).
External This program cannot be varied. This display always appears when the ergometer
is controlled by an ECG recorder or a PC-ECG.
In this operating mode, the ergometer controls are locked with the exception of the
“NIP“ button.
The buttons become active only after an external stop.
Other screens
During the Load This screen appears during load. The bottom line shows running text that reminds
you of the control capabilities you have during load:
HOLD (PROG/HOLD) The current load level is maintained until this button is
pressed again.
Alter load : You can alter the load manually by pressing the “+“ or “-“ button to
increase or decrease the load.
STOP (START/STOP) : Terminates the load and switches over to the recovery
phase.
Sys= 170 Dia = 095 mmHg
Keep arm steady !
-e x t e r n a l -
Sys = 170 Dia = 095 mmHg
Ergometry started
HOLD=hold load +/-= Load
Interval.
PPS
-
Test.

11
Operating the Unit
Load profile / Profile screens 3
After the Load After the load program has been terminated automatically or manually, the data
last used or measured are displayed on the LCD screen:
Line 1: Load period in hours, minutes and seconds.
Line 2: Last applied load level.
Line 3: Last determined measuring results.
Screens with the blood pressure option incorporated
NIBP Measurement at Rest Pressing the “NIP“ button outside a load phase starts a blood pressure
measurement. During the measuring cycle, the momentary cuff pressure is shown
by the SYS indicator.
NIBP Result Screen Following the successful measurement, the systolic and diastolic pressures are
indicated.
The heart rate (HR) is shown only if an ECG source (e.g. amplifier) is installed.
NIBP Measurement Failed If for some reason the blood pressure measurement fails, a message indicates that
the measuring cycle was unsuccessful.
This failure message remains on the screen for about 2.5 seconds.
Please check the following:
§Position of the microphone
§Position of the cuff
§Position of the air tube
§Other potential interfering causes
Also refer to Chapter 5 „Blood Pressure Module“
END: 0h 14m 12s
at 125W
Sys= 180 Dia=100 mmHg
Sys= 150 Dia=--- mmHg
NIBP measurement at rest !
Keep arm steady !
Sys= 170 Dia=095 mmHg
Ergometry started !
HOLD=hold load +/-=Load
NIBP measurement failed !
Check microphone!

12
Operating the Unit
Load Profile / Profile Screens 3
Changing the settings
Changing the
Load Profiles
Press the “PROG/HOLD“ button to scroll through the individual points of the load
profile. The presently selected value flashes. This (flashing) value can be altered
by means of the “+“ or “-“ button.
Exit the programming mode by scrolling to the program name or pressing the
“START/STOP“ button.
Changing the Blood
Pressure Settings
Press the “PROG/HOLD“ button until the arrow “ > “ behind the NIBP display
flashes.
OFF means that no blood pressure measurement is triggered
while the program runs.
1 .. 99 means the adjusted measuring interval, i.e. the time in minutes
after which another blood pressure measurement is performed
automatically by the unit.
In programs with changing loads, the blood pressure measurement is triggered one
full minute prior to the next change of the load. The adjusted measuring interval
always relates to this moment.
Example: With an adjusted time interval of 2 min., the blood pressure
measurements take place at . . . 7, 5, 3, 1 minutes prior to the
change of load.
Loudspeaker ON / OFF Different equipment modes and adjustment are indicated or acknowledged by
different sounds and melodies. The loudspeaker can be turned on or off
permanently.
•-To turn the loudspeaker ON hold the “+“ button pressed for 2 / 3 sec.
This setting is acknowledged by a short audible signal.
•-To turn the loudspeaker OFF press the “ -“ button for 2 / 3 sec. This
setting is not acknowledged by an audible signal.

13
Ergometric Session
Preparation / Remarks 4
Preparing the Ergometer Adjusting the seat height
Adjust the seat according to the body height of the patient before he/she mounts
the bicycle. Position the pedal at its lowest point; the heel of the straightened leg
should just rest on the pedal. To change the seat height release the lock with the
lever behind the seat support, move the seat to the desired position and let the
lever return to the locked position.
Try to move the seat to ensure that it is securely locked.!
Adjusting the handle bar
Release the clamping lever below the cockpit. Position the handle bar so that the
patient almost fully extends his/her arms to reach it. Lock the handle bar in that
position by turning the clamping lever cw. The angle of the lever can be altered
after pulling it out.
Ensure the clamping lever has clicked into a locked position!
Adjusting the saddle horizontally
Normally, the seat rests on an extension centered above the seat support. In cases
where it is not possible to have the patient’s arms fully extended by adjusting the
handle bar, the seat can be moved back and forward horizontally. Release the
rotating knob underneath the saddle, slide the seat to the desired position and
retighten the rotary knob to lock the saddle in the new position.
Preparing the Patient Explain the test to the patient and make him aware of the importance of
maintaining a certain speed. Within the speed ranges shown below, the ergometer
keeps the preset load constant even with an irregular pedaling speed.
U 1/min
130 --
120 -- Operating range Ergometer Ergo K
110 --
100 --
90 --
80 --
70 --
Operating range
60 -- according DIN
VDE 0750-0238
50 --
40 --
30 --
20 --
10 --
I I I I I I I I I I I I
25 50 100 200 300 400 500 600 700 800 900 1000P/W

14
Ergometric Session
Remarks / Performing 4
Unattended Session
Unattended ergometric sessions are not permitted and should be strictly
avoided!
The patient’s clothing must be appropriate for the ergometric.
Should problems arise during the ergometric session, the patient must report the
problem immediately and terminate the session.
The patient must be informed and instructed as to the stress test to be performed
(process, behavior, termination criteria, etc).
The patient should be monitored continuously during the entire session so that
should complications arise, the procedure could be interrupted (exhaustion, profuse
sweating, skin discoloring, etc.) and introduce without delay any measures that
may be necessary.
Selecting the Load Profile Before the patient begins with the exercise, select the load profile either on the
ergometer by means of the “?. “ or “ ?. “ button or at the controlling unit (ECG
recorder or PC).
Performing
the exercise
After the preparation of patient and equipment is completed, the patient may start
the exercise.
Press the “START/STOP“ button to start the load profile shown on the LCD
display. The preset values are adjusted automatically.
§Press the “START/STOP“ button again to end the load and
automatically initiate the recovery phase
§Press the “START/STOP“ button once more to terminate
the program.
If the ergometer is controlled by an ECG recorder or PC-ECG, please observe the
directions in the Operating Instructions for the controlling unit.
Speed Indication for the
Patient
During the exercise, observe the speed and draw the patient’s attention to the
indicator, if necessary.
The optimum speed is reached when the two green LEDs in the center of the
patient display light up.
The red and yellow LEDs to the left and to the right of the optimum indicate that
the patient pedals too fast or too slow.
With the cockpit facing the patient, he/she can watch the digital display of the
speed directly.
A bar indicator underneath the figures shows whether the speed is correct, too fast
or too slow.

15
Blood Pressure Module
(optional)
5
If your ergometer is equipped with the blood pressure
option, observe the following instructions and the
information sheet, “Ergometric Blood Pressure
Measurement”
Operator’s Warning! According to the Medical Product Operator’s Regulation, noninvasive blood
pressure measurement devices must be checked every 2 years for accurate
technical measurements.
Contact your sales representative for further details.
Preparation
Connection
The blood pressure module incorporated in the Ergo K bicycle ergometer is ready
for operation when the device is turned on.
Make sure that cuff and microphone are properly connected.
Microphone Connect the tube on the microphone to the connection tube on the cuff.
Lead the microphone through the red strap on the inner side of the cuff and place it
into the red pocket with the flat side of the microphone facing the red pocket ( the
artery).
Microphone:
Flat side Back side
Cuff Tube and
Microphone Connectors
The air tube is provided with a bayonet clamp connector. The connector locks
when turning the clamp cw and the lock is released by turning it ccw.
The microphone cable runs together with the cuff hose. To make the connection
insert the cable jack into the socket and push gently until it engages.

16
Blood Pressure Module
(optional)
Positioning the Cuff
5
Positioning the Cuff Place the cuff around the bare upper arm.
§Fit the cuff tightly to prevent it from slipping.
§Arrange the cuff so that it is at the level of the heart during the
measurement.
Locate the
brachial artery!
Position the cuff so that the microphone rests over the brachial artery.
To be sure of the correct location, first feel for the artery!
Positioning the
microphone
Avoid Interference! Secure the tube to prevent it from being ‘kicked’ by the knee during movement.
§Ensure that the cuff tube is not under tension, but has a slight slack!
§Ensure that the tube and cable are not twisted!
1

17
Blood Pressure Module
(optional)
Procedure
5
Warning Should the pressure exceed the limits permissible in the cuff, remove immediately.
Reapply and repeat. If the pressure is still excessive, contact service personnel
before further use.
Measuring
Procedure
The blood pressure is measured automatically. You are not required to control the
inflating pressure or the deflating rate since the system automatically determines
these parameters.
The following measuring procedures must be distinguished:
§Manual single measurement outside the ergometry program
§Initial measurement / Analytical measurement at the start of the
ergometry program
§Automatic measurement during the ergometry program
§Manual intermediate measurement during the ergometry program
Starting the Procedure Generally, the ergometer or the controlling unit (ECG recorder or PC) triggers the
measuring procedure.
However, you can always make single or intermediate measurements.
Manual Single
Measurement
Pressing the “NIP“ button starts the measuring procedure. The determined results
are displayed in the following way:
During the measurement the ‘SYS’ field shows the momentary pressure.
After the measurement is completed, the determined pressure values are shown
by the ‘SYS’and ‘DIA’ indicators.
Note: Not all ECGs or PC ECGs will include the results of manually
started measurements in the ergometry log.
Interrupting a
Measurement
Pressing the “NIP“ button while a measuring procedure is in progress interrupts
the measuring cycle.
Sys= 180 Dia=090 mmHg

18
Blood Pressure Module
(optional)
Procedure
5
Measurement During an
Ergometric Session
During an ergometric session, the ergometer or the controlling unit performs the
measurement of the blood pressure.
Initial Measurement /
Analytical Measurement
The first measurement after turning the unit on or starting an ergometric session is
usually an analytical measurement.
This is performed very accurately to determine the patient’s specific parameters
that form the basis for all subsequent measurements.
Ensure that the patient is relaxed, does not move and starts the exercise
only after the measurement is completed!
Error indication It may happen that the unit cannot obtain any measuring results due to signal
interference, (incorrect microphone position, etc.)
The error message appears for about 2.5 sec.
Please check the following:
§Position of the microphone
§Position of the cuff
§Position of the air tube
§Other potential interfering causes
Refer to information in this chapter.
Then restart the program.
Interval
Measurement
After the successful completion of the Analytical measurement, the Interval
measurement patient may start the exercise. ·
§You can read the measuring results on the display.
§The speed indicator (red!) tells the patient to start the exercise.
All subsequent measurements are triggered automatically.
Manual Intermediate
Measurement
Between the automatically triggered measurements you can press the “NIP“
button at any time to make an intermediate measurement.
The results are shown on the display.
Warning
Observe the information sheet, “ Ergometric Blood Pressure Measurement”,
delivered with the ergometer.
NIBP measurement failed!
Check Microphone !