Datex-Ohmeda Ohmeda Excel 210 User manual

Excel 210 MRI Compatible

Anesthesia Machine

Operation and Maintenance Manual

User Responsibility

This Product will perform in conformity with the description thereof contained in this operating
manual and accompanying labels and/or inserts, when assembled, operated, maintained and
repaired in accordance with the instructions provided. This Product must be checked periodically.
A defective Product should not be used. Parts that are broken, missing, plainly worn, distorted or
contaminated should be replaced immediately. Should such repair or replacement become
necessary, Datex-Ohmeda recommends that a telephonic or written request for service advice be
made to the nearest Datex-Ohmeda Field Service Support Center. This Product or any of its parts
should not be repaired other than in accordance with written instructions provided by Datex­Ohmeda and by Datex-Ohmeda trained personnel. The Product must not be altered without the
prior written approval of Datex-Ohmeda’s Quality Assurance Department. The user of this Product
shall have the sole responsibility for any malfunction which results from improper use, faulty
maintenance, improper repair, damage, or alteration by anyone other than Datex-Ohmeda.

CAUTIONCAUTION

w

CAUTION U. S. Federal and Canadian law restrict this device to sale by or on the order of a

CAUTIONCAUTION

licensed medical practitioner. Outside the U. S. A. and Canada, check local laws for
any restrictions that may apply.

Datex-Ohmeda products have unit serial numbers with coded logic which indicates a product
group code, the year of manufacture and a sequential unit number for identification.

AAA A 12345

This alpha character indicates the year of product manufacture
and when the serial number was assigned; “Y” = 1995, “Z” = 1996, “A” =
1997, etc. “I” and “O” are not used.

1001-0809-000 11/20/99

Table of Contents

1/Introduction

Introduction to the Excel MRI Compatible Anesthesia System 1-1
How to use this manual 1-2
Symbols used in the manual or on the equipment 1-3

2/General Information

Identifying Excel MRI components and controls 2-1
Identifying 5125 O

3/Set Up

Before starting to setup the system 3-1
Mounting gas cylinders 3-1
Mounting the 5125 O
Circuit and monitoring connections 3-4

4/Preoperative Checkout

Before starting the checkout 4-1
MRI compatibility check 4-1
Initial Checks 4-2
Checking vaporizer mounting 4-3
Checking cylinder and pipeline supplies 4-3
Checking vaporizer back pressure 4-4
Leak checking the low pressure circuitry 4-4
Checking the gas flow controls 4-6

Monitor components and controls 2-6

2

Monitor 3-2

2

5/Maintenance

i

Breathing system checks 4-7
5125 O

Maintenance schedule 5-1
Cleaning and sterilization 5-2

O

Monitor checks 4-7

2

Cleaning 5-2
Sterilization 5-3
Special precautions for rubber articles 5-3

sensor maintenance 5-3

2

Installing a cartridge or disassembling the O
Cleaning and sterilization 5-6
Replacing the 5125 O

Monitor battery 5-7

2

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sensor for cleaning 5-3

2

i

Table of Contents

6/Troubleshooting

Repair policy 6-1

7/Illustrated Parts

Appendix

Warranty

Problems with the 5125 O

Calibration and drift 6-1
5125 O

Pneumatics problems 6-3

Excel specific parts 7-1
MRI Compatible accessories 7-1
5125 O
Where to find additional part numbers 7-2

Excel Pneumatics A-1
Excel MRI System Specifications A-4

Monitor alarms 6-2

2

Monitor accessories 7-2

2

Monitor 6-1

2

ii

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1/Introduction

WARNINGWARNING

w

WARNING Using an MRI system in conjunction with general anesthesia on cardiac patients,

WARNINGWARNING

febrile patients, and patients with impaired ability to perspire may present a patient
health hazard.

In this sectionIn this section

In this section

In this sectionIn this section

Introduction to the Excel MRI Compatible Anesthesia System 1-1

How to use this manual 1-2

Symbols used in the manual or on the equipment 1-3

Introduction to the Excel MRI Compatible Anesthesia SystemIntroduction to the Excel MRI Compatible Anesthesia System

Introduction to the Excel MRI Compatible Anesthesia System

Introduction to the Excel MRI Compatible Anesthesia SystemIntroduction to the Excel MRI Compatible Anesthesia System

The Datex-Ohmeda commitment to meeting your anesthesia needs continues with the Excel
Magnetic Resonance Imaging (MRI) Compatible Excel Anesthesia System.

Basic features

The Excel MRI System includes:

• Three gases, oxygen, nitrous oxide, and air. All gases have pipeline and cylinder connections.

• The 5125 MRI Compatible O
battery and hardware self tests.

• A two vaporizer manifold.

MRI Compatibility

The Excel MRI is constructed primarily of non-ferous materials to help prevent attraction to the
cryogenic magnets in MRI systems.

The Excel MRI and attached accessories performed to specifications when tested together as a
system directly next to an unshielded, 1.5 Tesla MRI unit with a magnetic fringe field below 0.23
Tesla (2300 Gauss).

Approved accessories

A wide variety of Datex-Ohmeda accessories have been approved for use in conjunction with the
Excel MRI under test conditions:

WARNINGWARNING

w

WARNING The MRI compatibility of these accessories applies to specific accessory models and

WARNINGWARNING

is limited to use as part of the Excel MRI System. None of these accessories have
been tested for stand alone use in an MRI environment or in magnetic fringe fields
above 0.23 Tesla (2300 Gauss).

Monitor with adjustable high and low O2 alarms, and built in

2

1-1

• Tec 4 or 5 vaporizers; keyed or funnel fill models.

• GMS Absorber, PEEP valve, and Bain Circuit adapter

• Waste Gas Scavenging Valve

• 121 Respirometer

• Standard or free flow suction regulator kits

• Auxiliary oxygen flowmeter

• Flip-up shelf

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1-1

1/Introduction

• Storage cabinets

• Dovetail mounted accessories: a 1 x 3.5 inch post with two inch extension; a 12 inch IV Pole; a
large case Tycos gauge; and holders and regulators for E-size O

Because approval applies only to specific accessory models, consult the Illustrated Parts Section
of this manual for Stock Numbers.

Safety features

The Excel MRI includes several important safety features:

• The Datex-Ohmeda Link 25 Proportion Limiting Control System limits the lowest oxygen
concentration that can be delivered on the Excel MRI to a nominal 25% for O
the common gas outlet.

and N2O cylinders.

2

2/N2

O mixtures at

• An audible low O
(30 psig).

•N

O and air flows stop if O2 supply pressure falls below a nominal 138 kPa (20 psig).

2

• An interlock mechanism that helps prevent more than one Datex-Ohmeda Tec 4 or Tec 5
vaporizer from being “On” at once. An isolation system also helps prevent fresh gas from
entering a vaporizer that is not switched “On.”

• Low battery alarms and built in self tests on the 5125 O

• Differentiated pipeline and cylinder gauges.

• Gas specific pipeline and cylinder connections.

• A guarded O

• Color coded flow controls and pressure gauges.

supply alarm alerts you if the O2 pressure falls below a nominal 207 kPa

2

Monitor.

2

flush button.

2

Operator convenience

For your convenience, the Excel MRI also features:

• An O

• Full length dovetail accessory mounting.

• A single action brake/footrest.

• Shelf space for additional monitoring.

power outlet

2

• Large, easy-running casters and a compact frame.

How to use this manualHow to use this manual

How to use this manual

How to use this manualHow to use this manual

This manual covers the Excel MRI System and the MRI Compatible 5125 O2 Monitor. Vaporizers,
the GMS Absorber, the Waste Gas Scavenging Valve and other major accessories also have
individual operation and maintenance manuals. A complete set of operation and maintenance
manuals comes with the Excel MRI System. Datex-Ohmeda recommends that you keep this
manual and all related manuals available for reference.

If you are using the system for the first time, read this manual first. Then read the operation and
maintenance manuals for the system components. Before you go on to Chapter 2, “General
Information,” make sure that you understand the symbols listed at the end of this chapter.

If you have used the Excel MRI before, complete the step-by-step set up procedure in Chapter 3.
Then turn to Chapter 4 “Preoperative Checkout,” which is required before using the Excel MRI.

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1-2

1/Introduction

Before cleaning the Excel MRI, read Chapter 5, “Maintenance,” carefully. This section also tells
you how to change the O
cartridge replacement, disassembly for cleaning).

Chapter 6, “Troubleshooting,” helps you solve problems that may occur with the Excel MRI or the
5125 O
you can replace or an internal fault that requires a service call? (If the leak follows a particular
vaporizer and the external o-ring is in place, replace the vaporizer.)

Chapter 7, “Illustrated Parts,” tells you how to order replacement parts and accessories. It also
lists part numbers for all operation and maintenance manuals associated with the Excel MRI
System.

Monitor. For example, how can you tell if a low pressure leak is due to a vaporizer that

2

Monitor battery and assemble and service the O2 sensor (sensor

2

The Appendix lists Excel MRI and 5125 O
pneumatic circuitry of the Excel MRI.

Please also take a moment to review the User Responsibility Statement on the inside of the front
cover; it describes what is expected of you to maintain the Excel MRI. Also read the Warranty on
the back cover; it outlines Datex-Ohmeda’s responsibility in case of a functional defect.

Symbols used in the manual or on the equipmentSymbols used in the manual or on the equipment

Symbols used in the manual or on the equipment

Symbols used in the manual or on the equipmentSymbols used in the manual or on the equipment

WarningsWarnings

w

Warnings and w

WarningsWarnings

obey all of the instructions in this manual.

Warnings tell you about a condition that can cause injury to the operator or the patient. Cautions
tell you about a condition that can cause damage to the equipment. Read and obey all warnings
and cautions.

Other symbols replace words on the equipment or in Datex-Ohmeda manuals. No one device or
manual uses all of the symbols. These symbols include:

ø

O

Cautions Cautions

Cautions tell you about dangerous conditions that can occur if you do not

Cautions Cautions

On (power)

Off (power)

Monitor specifications and describes the internal

2

1-3

o
q
p

œ
†

∏
x

Standby

Standby or preparatory state for a part of the equipment

“ON” only for part of the equipment

“OFF” only for part of the equipment

Direct Current

Alternating Current

Protective earth ground

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1-3

1/Introduction

y
r
å
Y

t
T

+

Ë
P

N

Earth Ground

Frame or chassis ground

Alarm silence button

Equipotential

Variability

Variability in steps

Plus, positive polarity

Minus, negative polarity

Lamp, lighting, illumination

Movement in one direction

ˆ
z

Z

134°C Autoclavable

Í

m
µ
H

w
wW

Movement in both directions

Lock

Unlock

Non-autoclavable

Type B equipment

Type BF equipment

Type CF equipment

Caution, ISO 7000-0434

Attention, consult accompanying documents, IEC 601-1

1-4

Ê
π

This way up

Dangerous Voltage

1001-0809-000 11/20/99

1-4

1/Introduction

≈
Ù

REF

SN

Input

Output

Stock Number

Serial Number

Systems with this mark agree with European Council Directive (93/42/EEC) for
Medical Devices when they are used as specified in their Operation and
Maintenance Manuals. The xxxx is the certification number of the Notified Body
used by Datex-Ohmeda’s Quality Systems.

Read top of float

Vacuum inlet

Suction bottle outlet

O2+ O2 Flush button

Cylinder

Isolation transformer

Linkage system

Risk of Explosion

Low pressure leak test

R Bag position/ manual ventilation
u Open drain (remove liquid)
U Close drain
q Inspiratory flow
Q Expiratory flow

1-5

t O

sensor connection

2

r Mechanical ventilation

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1-5

1/Introduction

End case

< 345 kPa

< 414 kPa

O2%

O2%

The primary regulator is set to pressure less than 345 kPa

The primary regulator is set to pressure less than 414 kPa

European Union Representative

Low O

alarm limit switch

2

High O

alarm limit switch

2

Battery test

Circuit test

Test switch

1-6

1001-0809-000 11/20/99

1-6

2/General Information

In this sectionIn this section

In this section

In this sectionIn this section

Identifying Excel MRI components and controls 2-1

Identifying 5125 O

WARNINGWARNING

w

WARNING The Datex-Ohmeda Excel System must only be used with non-flammable anesthetic

WARNINGWARNING

Monitor components and controls 2-6

2

agents.

Identifying Excel MRI components and controlsIdentifying Excel MRI components and controls

Identifying Excel MRI components and controls

Identifying Excel MRI components and controlsIdentifying Excel MRI components and controls

The figures in this chapter, show control locations on Excel MRI System components. For more
information on GMS Absorber, or vaporizer controls, refer to the individual operation and mainte­nance manual.

9

8

7

6

1. System Master Switch

2. Flush Button

3. Common Gas Outlet

4. Drawer Cabinet (Optional Accessory)

5. Brake Bar and Footrest

6. Absorber Arm Button

7. O2 Power Outlet

8. Flow Controls

9. 5125 O2 Monitor

1

2
3

4

AA.19.039

5

Figure 2-1

Front view of Excel MRI

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2-1

2/General Information

Flow controls

With the system master switch set to “On,” turning a flow control counterclockwise increases flow,
turning a flow control clockwise decreases flow. A linkage between the N
controls limits the lowest oxygen concentration that can be set on the Excel MRI to a nominal 25%
for O
up to two additional turns of the knob); N
knob ); air, 0 to 15 l/min (plus up to one additional turn of the knob).

System master switch

Setting the system master switch to “On” allows gas to flow through the Excel MRI.

Flush button

Pressing the O2 Flush button delivers 45-70 l/min of O2 through the common gas outlet.

Common gas outlet

The common gas outlet delivers anesthetic gases to the patient circuit.

Brake

Push down to keep the Excel MRI from rolling. Lift up to release.

O mixtures at the common gas outlet. Flow ranges are: O2, 200 ml/min to 10 l/min (plus

2/N2

O and the O2 flow

2

O, 0 to 10 l/min (plus up to one additional turn of the

2

Absorber arm button

Press this button to adjust the height of the absorber arm.

O2 power outlet

Provides drive gas for MRI compatible pneumatic equipment.

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2-2

2/General Information

1
2

1. Cylinder Connection

2. Pipeline Connection

AA.19.040

Figure 2-2

Excel MRI (rear)

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2-3

2/General Information

Vaporizer concentration control

Press in the release and turn the concentration knob to the desired agent concentration. The
locking lever must be fully clockwise (locked position) or the control will not turn.

Concentration control release

Pressing the release allows you to turn the concentration knob on the vaporizer.

Vaporizer locking lever

When the locking lever is completely counterclockwise, and the vaporizer concentration is set to “Off,”
you can mount or remove the vaporizer. Turn the lever clockwise to lock the vaporizer in position.

Vaporizer fill port valve

Opens the fill port valve so that agent can be added or drained.

Vaporizer key lock lever

Holds the fill adapter from the agent bottle in place. To secure the adapter, lower the lever, insert
the adapter, and raise the lever.

Vaporizer fill port (spout)

Unscrew and remove the plug to fill or drain vaporizers with funnel fill ports.

Drain Plug

Loosen (do not remove) with hex head portion of spout to drain agent. Tighten drain plug and
install spout before use.

8

1

7

AA.13.004

6

45

1. Vaporizer Concentration Control

2. Vaporizer Fill Port (Spout)

3. Drain Plug and Drain Port

4. Vaporizer Fill Port Valve

5. Vaporizer Fill Port (Keyed)

6. Vaporizer Key Lock Lever

7. Concentration Control Release

8. Vaporizer Locking Lever

AA.13.003

2

3

Figure 2-3

Tec 5 vaporizers

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2-4

2/General Information

Absorber drain plug

Unscrew and remove to drain condensate. Replace and tighten before use.

APL valve

This valve limits patient circuit pressure during manual ventilation (bagging).

Absorber check valves

Provide unidirectional flow through the absorber.

Airway pressure gauge

Absorber gauge to display inspiratory pressure.

Absorber release lever

This lever should always be in the lock position during use. The release position lowers the
absorber base so that you can remove the canisters.

Absorber mounting knob

Turn completely clockwise to attach the absorber to the mounting pin. Turn counterclockwise to
remove the absorber.

Bag/Ventilator switch

This switch on the absorber selects either the bag arm (Bag position) or the ventilator bellows
(Vent position).

1. Bag/Ventilator Switch

2. Airway Pressure Gauge

3. APL Valve

4. Absorber Check Valves

5. Fresh Gas Input

6. Absorber Release Lever

7. Absorber Mounting Knob

8. Absorber Drain Plug

2

3
41

AA.15.153

8 7

5

AA.15.152

6

Figure 2-4

GMS Absorber

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2-5

2/General Information

Identifying 5125 OIdentifying 5125 O

Identifying 5125 O

Identifying 5125 OIdentifying 5125 O

Figure 2-5 identifies 5125 O2 Monitor controls and major components.

1

Monitor components and controls Monitor components and controls

Monitor components and controls

Monitor components and controls Monitor components and controls

22

2

22

2

34

5125

5

6

7

8

MD.12.013

MD.12.014

14

10 mV
per

o

%

2

1. Battery

2. Calibration Control

Min
R

L

20M

1213

MD.12.019

3. Test Switch

4. O2 Alarm Limits

5. Display

6. Alarm LEDs

7. Battery Power Switch

8. Alarm Silence

9. Sensor Housing

10. O-Ring

11. Sensor Cartridge

12. O2 Sensor Connection

13. Remote Connection (Refer to Appendix for Signal Specifications)

14. Front Panel

MD.02.032

910119

Figure 2-5

5125 O

Monitor controls

2

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2-6

2/General Information

Test switch

Pressing down the top half of the switch (Batt Test) checks the battery condition. Holding down the
bottom half of the switch (Circuit Test) checks the 5125 O
information about using the switch, refer to the section “5125 O
Chapter 4.

Low O2 alarm

Sets the lowest acceptable O2 concentration. O2 concentrations below 18% trigger a low O2 alarm
regardless of the alarm limit. Setting the limit below 18% also triggers an alarm.

High O2 alarm

Sets the highest allowed O2 concentration (0 to 99%). Setting the limit to 00% disables the alarm.

Display

Shows the measured O2 concentration and any alarm messages.

Battery Power switch

Switches the 5125 O2 Monitor “On” and “Off.”

Alarm Silence

Monitor’s electronic circuitry. For

2

Monitor checks” at the end of

2

Pressing the alarm silence button silences all audible alarms, except for low O2, until the next
occurrence. Low O
LEDs stay on continuously.

alarms are silenced for 30 seconds. While the alarm is silenced, any flashing

2

O2 sensor housing and cartridge

The 5125 O2 Monitor uses the standard Datex-Ohmeda O2 sensor. The sensor cartridge is not part
of the O
section “O

sensor assembly and must be installed before use. For additional information refer to the

2

sensor maintenance” in Chapter 5.

2

Battery

The 5125 O2 Monitor uses a “C” size, non-magnetic, 3.9 Vdc lithium battery. During operation, the
“BATT FAIL” alarm continuously monitors battery strength.

Calibration control

Use the calibration control (CAL) to calibrate the 5125 O2 Monitor for 21% and 100% O2. Refer to
“5125 O

Monitor checks” at the end of Chapter 4.

2

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2-7