Stryker INT-R780-PM Mistral-Air Forced Air Warming User Manual

Version: INT/R780-PM/4-05/18

User Manual

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Contents

1 General information.....................................................................................................................5

1.1 About this manual.................................................................................................................. 5

1.2 Indications for use..................................................................................................................5

1.3 Contact................................................................................................................................... 5

1.4 FAQ and training.................................................................................................................... 5

1.5 Warranty................................................................................................................................. 6

1.6 Authorization of personnel..................................................................................................... 6

1.7 Warning, caution and note.....................................................................................................6

1.8 Disclaimer...............................................................................................................................6

2 Contra-indications, warnings, cautions, notes and symbols.................................................. 7

2.1 Contra-indications...................................................................................................................7

2.2 Warnings.................................................................................................................................7

2.3 Cautions..................................................................................................................................9

2.4 Notes...................................................................................................................................... 9

2.5 Device safety symbols..........................................................................................................10

2.6 Blanket safety symbols........................................................................................................ 13

3 Description..................................................................................................................................16

3.1 Overview of the Mistral-Air® Warming Unit

3.2 Overview of the control panel..............................................................................................16

3.3 Visual and audible warning systems....................................................................................17

3.3.1 Technical alarm............................................................................................................ 18

3.3.2 Overtemperature alarm................................................................................................ 19

3.3.3 Microcontroller watchdog alarm................................................................................... 19

3.3.4 Filter replacement indicator.......................................................................................... 19

3.3.5 Temporarily audible alarm suppression........................................................................19

4 Accessories and disposables...................................................................................................20

4.1 Mistral-Air® Adjustable Pole (MA5200-PM)......................................................................... 22

4.2 MA1200-PM mounting parts (MA5002-PM).........................................................................23

4.3 Mistral-Air® blankets.............................................................................................................24

5 Set up.......................................................................................................................................... 26

5.1 Transport and storage.......................................................................................................... 26

5.2 Connecting the power supply cord...................................................................................... 26

5.3 Attaching the mounting parts...............................................................................................26

(MA1200‑PM)

.................................................. 16

6 Operation.....................................................................................................................................30

6.1 Safety instructions before operation.....................................................................................30

6.2 Connecting the power supply...............................................................................................30

6.3 Connecting the blanket........................................................................................................ 30

6.4 Turning on the device...........................................................................................................30

6.5 Selecting the temperature....................................................................................................31

User Manual - Contents 3 of 44

6.6 Stopping warming.................................................................................................................31

7 Maintenance................................................................................................................................32

7.1 Cleaning................................................................................................................................33

7.2 Corrective maintenance........................................................................................................33

7.2.1 Replacing the filter (MA1200-1001-PM)....................................................................... 33

7.2.2 Replacing the hose (MA1100-1018-PM & MA1100-1018XL-PM)................................ 35

7.2.3 Replacing the power cord............................................................................................ 37

8 Troubleshooting......................................................................................................................... 38

9 Specifications............................................................................................................................. 39

9.1 Specifications of the device................................................................................................. 39

10 Electromagnetic compatibility................................................................................................41

10.1 Electromagnetic immunity.................................................................................................. 41

10.2 Electromagnetic emissions.................................................................................................42

10.3 Recommended separation distances.................................................................................43

User Manual - Contents 4 of 44

1 General information

1.1 About this manual

In this manual, you can find important information about how to operate the Mistral-Air® Warming
Unit - SYK (MA1200-PM) (hereafter referred to as ‘the device’).

The manual helps you with the operation and the maintenance of the device, in a safe and
responsible manner.

Read this manual carefully. Complete all the procedures. Do the procedures in the given sequence.
Always keep the manual near the device.

Please refer to the Mistral-Air® technical manual for maintenance, repair and calibration
instructions. The Mistral-Air® technical manual is available for download at the business partner
menu of the 37Company website.

1.2 Indications for use

The Mistral-Air® Warming System is a forced air warming device and comprises of a warming
unit and a variety of blankets. It is intended to raise and maintain patient temperature by means of
surface warming.

1.3 Contact

Stryker Medical
3800 E. Centre Avenue
Portage, MI 49002
USA

E-mail: [e-mail]
Website: www.stryker.com

1.4 FAQ and training

Please refer to our website (www.the37company.com) for an up-to-date overview of the frequently
asked questions of the Mistral-Air

Warning!

The device may only be operated by trained clinicians and maintenance may only be
performed by trained biomedical technicians or engineers. Both user groups must be
trained by certified trainers from Stryker.

®

products: home / mistral-air | frequently asked questions.

User Manual - General information 5 of 44

1.5 Warranty

For the warranty provisions, ask your local Stryker representative.

1.6 Authorization of personnel

Make sure that only authorized personnel use the device.

1.7 Warning, caution and note

Warning!

A "warning" tells you that there is a risk of personal injury or death.

Caution!

A "caution" tells you that:

• there is a risk of damage to the device, and/or

• there is a risk of damage to other equipment.

A "note" gives more information.

1.8 Disclaimer

The manufacturer reserves all rights. No part of this document may be reproduced or published,
electronically, mechanically, in print, photographic print, on microfilm or by any other means
whatsoever, without the explicit consent of The 37Company.

The content of this document has been compiled with the greatest possible care and this
information can be regarded as reliable. Nevertheless, the manufacturer reserves the right to
make alterations and improvements to the device. These may not yet have been described in the
instructions. The manufacturer cannot be held liable for the final outcome of the patients’ treatment.

This document contains proprietary information that may not be disclosed to third parties. This
document may not be used without the explicit written consent of the manufacturer.

These instructions are intended for personnel authorized to work with and/or service the medical
device described in this manual.

User Manual - General information 6 of 44

2 Contra-indications, warnings, cautions, notes and
symbols

Your device was designed and built with safety in mind. The device should provide reliable service
and high quality patient care. However, there is no replacement for care providers being attentive
to their patients’ needs and equipment operation. Read and understand the contra-indications,
warnings, cautions and notes before using or prescribing the device.

2.1 Contra-indications

• Only apply heat to intact skin and do not apply heat directly to open wounds.

• Do not apply the warming system to ischemic limbs.

1. Use caution and consider discontinuing use on patients during vascular surgery when an

artery is clamped to an extremity (i.e. aortic cross-clamping).

2. Use caution and monitor closely if used on patients with severe peripheral vascular

disease.

2.2 Warnings

Warning!

• Do not use the device when it is damaged or when the Mistral-Air® Blanket is damaged.
Thermal injury may result.

• Do not allow the patient to lie on or contact the hose with the skin when the device is
active. Thermal injury may result.

• Do not use the Mistral-Air® Blanket to transfer or move the patient. Injury to the patient
may result.

• To prevent tipping when mounting to an IV-pole, mount the device at a height at which
the IV-pole is stable. Injury may occur. Before usage, assess the stability by placing the
IV-pole on a surface at an angle of 10° from the horizontal plane with brakes activated.
The IV-pole may not overbalance, or move. Also passing over a 10 mm threshold
may not result in overbalancing. Mass and position of center of gravity are provided
in this IFU for theoretical analysis. Stryker cannot provide maximum mounting height
prescriptions for different wheel base diameters, numbers of castors (either with brakes
or not) and configurations of other equipment mounted to the IV pole.

• Do not use the device without a Mistral-Air® Blanket connected to it (no free hosing).
Thermal injury may result.

• Do not use the device and blankets near flammable anesthetics and/or in oxygen­enriched environment, to avoid the risk of explosion or fire.

• Check patient’s temperature and skin condition at least every 15 minutes, or according
to institutional protocol.

• Do not cover the patient’s thorax with our Mistral-Air® Blankets during cardioversion or
defibrillation therapy.

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symbols 7 of 44

• Applying air with a temperature above the normothermic core body temperature range
(36 – 37.5°C) incorporates the risk of hyperthermia. Depending on the selected set
point, heating time, additional heat sources and insulation, the patient’s body core
temperature can rise above 37.5°C. Thermal injury may result.

• Pediatric patients of low weight will have a tendency to overheat more rapidly than
adults. Failure to monitor core temperature could result in abnormal elevation of body
temperature resulting in serious injury or death.

• A physician order is required for setting temperature and for continued use.

• If patient temperature is not responding to treatment or does not reach the desired
temperature, notify a physician.

• Warming transdermal medications (patches) can increase drug delivery, resulting in
possible harm to the patient.

• Do not use the device with any forced air disposables other than Mistral-Air® Blankets.
Thermal injury may result.

• Avoid direct contact between a blanket and a laser. Although the blankets are flame
retardant per 16 CFR Part 1610 (Standard for the flammability of clothing textiles)
class 1, compliance with ISO 11810:2015 (classification for the laser resistance) is not
demonstrated.

• Never fold the blankets during use. This could lead to insufficient treatment.

• Do not obstruct blanket channels by e.g. instruments/tape/clamps. This could lead to
insufficient treatment.

• The device is fitted with a HEPA H13 class air filter (EN1822-1:2009, GROUP H).
However airborne contamination should be taken into consideration when using the
warming system to minimize the risk of infection for the patient.

• Before you clean the device, disconnect the power supply cord to eliminate the risk of
electrocution.

• Clean the hose after each use to reduce the risk of infection.

• When replacing the hose, do not touch the temperature sensors. If these sensors are
touched in any way, they can be damaged and out of calibration. This could cause burns
to the patient. If the temperature sensors are touched or damaged, contact your local
Stryker representative.

• Use of accessories, transducers and cables other than those specified or provided
by Stryker of this equipment could result in increased electromagnetic emissions or
decreased electromagnetic immunity of this equipment and result in improper operation.

• Do not disassemble the device unless you are a qualified service technician. Injury may
occur.

• Before performing corrective maintenance (see Corrective maintenance on page 33),
disconnect the power supply cord to eliminate the risk of electrocution. There are
electrically live parts within the device when it is connected to a power supply.

• Mistral-Air® blankets need to be used with the soft blue material towards the patient’s
skin. When used oppositely the treatment will be ineffective. The blue side provides the
air distribution towards the patient.

• When placing the device on a surface, make sure the surface is horizontal, solid and
clean. Do not place the device on a carpet because it could block the air inlet and
reduce the performance.

User Manual - Contra-indications, warnings, cautions, notes and

symbols 8 of 44

• When using bed hooks, only mount the device to a horizontal secured surface. Do
not mount the device to a tilting non-secured surface. The device may fall and pull the
blanket from the patient.

• Do not place the device above, or in the bed with the patient. Thermal injury may occur.

• Place the device in such a way that the mains plug can be disconnected easily in case
of emergency. Operator injury may occur.

• Connect the device to an adequate reliable grounded receptacle. Operator injury may
result.

• When mounted to the Mistral-Air® Adjustable Pole, make sure that the hose does not
extend beyond the wheelbase of the Mistral-Air® Adjustable Pole so that it is protected
by the wheelbase. Otherwise damage to the hose may occur.

• Clean the hose at ambient temperature and make sure the hose is dry before use.
Damage to the hose or device may occur.

• When the device has suffered impact, disconnect the power plug and contact your local
Stryker representative.

2.3 Cautions

Caution!

• Do not use a sharp object to press the buttons on the control panel.

• The device must be mounted securely, or placed on a stable flat surface before use to
prevent the device from falling.

• To ensure stability when mounted to a trolley the device may only be mounted to a
Mistral-Air® Adjustable Pole (MA5200-PM).

• Do not immerse the device in liquids. Otherwise, the device can be damaged.

• Stay in viewpoint of the control panel when the device is performing the self-test and
selecting the set-point. See Turning on the device on page 30.

• In case of an alarm, check for any obstruction of the air flow; ensure that the blanket and
the hose are not folded, the inlet is free (not blocked) and no tools/equipment are placed
on the blanket. If the device continues to alarm, take the device out of use and contact
the hospital service department or the local supplier.

• Do not place the device on a carpet because it could block the air inlet and reduce the
performance.

2.4 Notes

• The heating device does not contain an alarm system with an interruption of power
supply/supply mains alarm condition. This means that in case of a power failure, there
will be no alarm.

• The device is not equipped with an isolating switch. Temporary interruption of the supply
mains will render the device in standby mode and discontinue treatment.

User Manual - Contra-indications, warnings, cautions, notes and

symbols 9 of 44

2.5 Device safety symbols

This section contains a list of symbols used for the Mistral-Air® Forced Air Warming Unit.

Protected against ingress of solid objects larger than 12.5 mm and water falling as
a spray at an angle up to 60° from the vertical axis (according to IEC 60429).

Caution: Federal US law restricts this device to sale by or on order of a physician.

Connect the device to an earthed socket only. Risk of electrical shock exists if the
equipment is not connected to a properly grounded receptacle.

No free hosing.

Warning!

Hose nozzle MUST be connected to a compatible forced air blanket or
thermal injury may occur.

Check patient’s temperature and skin condition at least every 15 minutes, or
according to institutional protocol.

Warning!

Do not use the device distal to arterial cross clamping or with a patient with
an ischemic limb.

Serial number

Catalogue / article number

Manufacturer

User Manual - Contra-indications, warnings, cautions, notes and

symbols 10 of 44

Transport and storage ambient temperature limits

Transport and storage relative humidity limits

Transport and storage atmospheric pressure limits

AC voltage

Type BF applied parts (according to IEC 60601-1:2005+A1:2012)

Equipotentiality

Read the user manual

Consult the instructions for use

Caution

Low priority alarm indication on control equipment

User Manual - Contra-indications, warnings, cautions, notes and

symbols 11 of 44

Medium priority alarm indication on control equipment

Temporarily audible alarm suppression

Repair is required

Upper limit of temperature, overtemperature alarm

Replace filter

Air flow at ambient temperature (not heated)

32°C Air flow setpoint at a temperature of 32°C (heated)

38°C Air flow setpoint at a temperature of 38°C (heated)

43°C Air flow setpoint at a temperature of 43°C (heated)

Prior to use, the user needs to check that the device (including the power cord and
the hose) is undamaged. In the event of damage do not use the device.

Maintenance may only be performed by trained biomedical technicians or
engineers. Both user groups must be trained by certified trainers from Stryker.

Warning!

Plug the device into an earthed mains socket.

User Manual - Contra-indications, warnings, cautions, notes and

symbols 12 of 44

Before using the device, it should be attached to a pole, Mistral-Air® Adjustable
Pole (MA5200-PM), bed rail/end, ISO rail, wall, or placed on a table.

2.6 Blanket safety symbols

This section contains a list of symbols used for the Mistral-Air® Blankets.

Not for use in magnetic resonance imaging (MRI)

Caution: Federal US law restricts this device to sale by or on order of a physician.

Do not use the device if the package is damaged.

Catalogue / article number

Sterile, method of sterilisation ethylene oxide

Batch code / lot number

S = Small, M = Medium, L = Large, XL = Extra large

Manufacturer

User Manual - Contra-indications, warnings, cautions, notes and

symbols 13 of 44

Check patient’s temperature and skin condition at least every 15 minutes, or
according to institutional protocol.

Warning!

Do not use the device distal to arterial cross clamping or with a patient with
an ischemic limb.

Transport and storage ambient temperature limits

Transport and storage relative humidity limits

Transport and storage atmospheric pressure limits

Use-by-date

For single patient use only

Not made with natural rubber latex.

Read the user manual

User Manual - Contra-indications, warnings, cautions, notes and

symbols 14 of 44

Consult the instructions for use

Caution

User Manual - Contra-indications, warnings, cautions, notes and

symbols 15 of 44

3 Description

3.1 Overview of the Mistral-Air® Warming Unit

The device is a Forced Air Warming Unit which consists of a fan, heater, electronics and a filter to
propel filtered and heated air to a blanket. The device may only be used with disposable Mistral­Air® blankets that are single use only.

(MA1200‑PM)

1. Control panel

2. Mounting clamp

3. Mounting options

(accessory)

4. Appliance inlet

5. Equipotential pin

6. Data connection

7. Cord anchor

8. Filter (air inlet)

9. Hose

The device can be controlled by using the control panel at the front top of the device. The back of
the device is equipped with a universal mounting clamp, a sealed data connector, an appliance
inlet and an equipotential pin. It can be expanded with a mounting accessory set as shown in the
image above to offer various mounting options, see Accessories and disposables on page 20.

For more device specifications, see Specifications on page 39.

3.2 Overview of the control panel

The control panel is located at the front top of the device and can be operated by pressure
sensitive buttons. The device is easy to use. All settings are visible on the control panel and you
can select the preferred temperature by pressing the temperature selection buttons. When an
alarm condition is detected, an audible alarm will be activated and an alarm LED will flash yellow.

User Manual - Description 16 of 44

1 2 3

45

7

8 6

1. Standby button

2. Temperature selection indicators

3. Overtemperature alarm LED

4. Technical alarm LED

5. Filter replacement indicator LED

6. Temperature selection + and –

buttons

7. Fan only/ambient air indicator

8. Temporarily audible alarm

suppression button

3.3 Visual and audible warning systems

The device is equipped with visual and audible warning systems to protect against excessive
temperatures, to warn for a technical malfunction, and to indicate that filter change is required.

If equipment errors occur, an audible alarm sounds and the relevant LED indicator(s) on the control
panel will flash or light up continuously.

There are four different alarms/indicators:

• Technical alarm

• Overtemperature alarm

• Microcontroller watchdog alarm

• Filter replacement indicator

These alarms/indicators are described in the sections below. It is also possible to temporarily
suppress the audible alarm.

User Manual - Description 17 of 44

Alarm/indicator summary

Alarm/indicator Priority Behavior

Technical alarm LED: Yellow flashingTechnical alarm Medium

Audible alarm: 3 beeps repeated
every 6 seconds

Overtemperature alarm Medium

Microcontroller watchdog alarm Medium

Filter replacement indicator Low

Technical alarm LED: Yellow flashing

Overtemperature alarm LED: Yellow
flashing

Audible alarm: 3 beeps repeated
every 6 seconds

Technical alarm LED: Yellow
continuous

Overtemperature alarm LED: Yellow
flashing

Audible alarm: continuous beep

Filter replacement indicator LED:
Yellow continuous

Audible alarm: 1 single beep

3.3.1 Technical alarm

A flashing yellow technical alarm LED indicates that a technical error has occurred and the air
temperature cannot be accurately controlled. The visual alarm is accompanied by an audible
alarm, which consists of three pulses of 200 ms duration, with 200 ms spacing between each
pulse. This pattern is repeated every 6 seconds.

Some possible causes of this alarm:

• The leads to the temperature sensors are damaged, or disconnected.

• The fan is blocked, or damaged and cannot reach its desired speed.

• The heater is damaged and the desired air temperature is not reached.

• A mains power dip (≥ 30%) occurred for more than 1/60 seconds.

If this alarm occurs, the heater and fan are turned off and the device enters standby mode. It is
impossible to start the device by pushing the standby button. Control of the device can only be
recovered through resetting the device. To do this, disconnect the mains plug and reconnect it.

Caution!

If this alarm occurs, check for anything blocking the air flow path. If the technical alarm
continues, take the device out of use and contact the hospital service department or
Stryker.

User Manual - Description 18 of 44

3.3.2 Overtemperature alarm

The overtemperature alarm is triggered with a maximum air temperature of 56°C.

When the overtemperature alarm occurs, the technical and overtemperature LED's flash yellow.
These indicate that the air temperature is too high. The visual alarms are accompanied by an
audible alarm, which consists of three pulses of 200 ms duration, with 200 ms spacing between
each pulse. This pattern is repeated every 6 seconds.

If this alarm occurs, the heater and fan are turned off and the device enters standby mode. It is
impossible to start the device by pushing the standby button. Control of the device can only be
recovered through resetting the device. To do this, disconnect the mains plug and reconnect it.

Caution!

If this alarm occurs, check for anything blocking the air flow path. Ensure that the blanket is
not folded and do not place tools/equipment on the blanket which could result in a blocked
air flow. Ensure that the air inlet is free. If the overtemperature alarm continues, take the
device out of use and contact the hospital service department or the local supplier.

3.3.3 Microcontroller watchdog alarm

The microcontroller watchdog alarm is visually indicated by a continuous yellow technical alarm
LED and a flashing yellow overtemperature LED. The visual alarms are accompanied by a
continuous single tone audible alarm.

The microcontroller watchdog alarm indicates a technical malfunction and is triggered when the
microcontroller is not functioning properly. If this alarm occurs, the heater and fan are turned off
and the device enters standby mode. It is impossible to start the device by pushing the standby
button. Control of the device can only be recovered through resetting the device. To do this,
disconnect the mains plug and reconnect it.

Caution!

If this alarm occurs, send the device to a certified service department for technical support.

3.3.4 Filter replacement indicator

When the yellow filter replacement LED lights up, the filter needs to be replaced. This LED is
activated when the device has been used for more than 2000 hours. When it is activated, it is
accompanied by a single beep.

Refer to Replacing the filter (MA1200-1001-PM) on page 33 for the filter replacement
procedure.

3.3.5 Temporarily audible alarm suppression

The audible alarm may be suppressed for up to 2 minutes by pressing the temporarily audible
alarm suppression button.

When the audible alarm is suppressed, the orange LED lights up. After 2 minutes or after pushing
the button once again, the audible alarm will automatically be restored.

User Manual - Description 19 of 44

4 Accessories and disposables

35 mm

105 mm

The device can be used with the following accessories and disposables:

• Mistral-Air® Adjustable Pole (MA5200-PM)

• MA1200-PM mounting parts (MA5002-PM)

• Mistral-Air® blankets

Warning!

• Do not place the device above, or in the bed with the patient. Thermal injury may occur.

• When placing the device on a surface, make sure the surface is horizontal, solid and
clean. Do not place the device on a carpet because it could block the air inlet and
reduce the performance.

• When mounted, the device must be mounted securely before use to prevent the device
from falling.

• To prevent tipping when mounting to an IV-pole, mount the device at a height at which
the IV-pole is stable. Injury may occur. Before usage, assess the stability by placing the
IV-pole on a surface at an angle of 10° from the horizontal plane with brakes activated.
The IV-pole may not overbalance, or move. Also passing over a 10 mm threshold
may not result in overbalancing. Mass and position of center of gravity are provided
in this IFU for theoretical analysis. Stryker cannot provide maximum mounting height
prescriptions for different wheel base diameters, numbers of castors (either with brakes
or not) and configurations of other equipment mounted to the IV pole.

The image below shows the position of the center of gravity in relation to the center of
the pole clamp.

In the standard configuration, the device can be mounted to an IV pole or ISO rail using the
universal clamp on the back of the device (see figures below). It is also possible to place the device
on a table without reducing the air flow rate.

User Manual - Accessories and disposables 20 of 44

User Manual - Accessories and disposables 21 of 44

4.1 Mistral-Air® Adjustable Pole (MA5200-PM)

Caution!

• When mounting the device to the Mistral-Air® Adjustable Pole, make sure that the hose
is protected by the wheelbase of the trolley. Otherwise, damage to the hose may occur
after impact.

•

Do not mount the device on the extendable,
smaller diameter, part of the trolley's pole. Only
mount the device on the non-extendable part of
the trolley's pole (the lower part).

Mount the device here.

User Manual - Accessories and disposables 22 of 44

The device can be mounted onto the Mistral-Air® Adjustable Pole (MA5200-PM):

4.2 MA1200-PM mounting parts (MA5002-PM)

Warning!

• When using bed hooks, only mount the device to a horizontal secured surface. Do
not mount the device to a tilting non-secured surface. The device may fall and pull the
blanket from the patient.

The device has various mounting options using the Mistral-Air® mounting parts – SYK (MA5002­PM).

See Attaching the mounting parts on page 26 for more details about attaching the mounting
parts.

User Manual - Accessories and disposables 23 of 44

Mounting on a bed rail/end using the bed hooks.

Quick-release mechanism to switch between
mounting to bed rail/end and pole.

Mounting on a wall using the Wall mount.
Release by using the quick-release mechanism.

4.3 Mistral-Air® blankets

Warning!

• Do not use the device with any forced air disposables other than Mistral-Air® Blankets.
Thermal injury may result.

• Do not cover the patient’s thorax with our Mistral-Air® Blankets during cardioversion or
defibrillation therapy.

• Avoid direct contact between a blanket and a laser. Although the blankets are flame
retardant per 16 CFR Part 1610 (Standard for the flammability of clothing textiles)
class 1, compliance with ISO 11810:2015 (classification for the laser resistance) is not
demonstrated.

The Mistral-Air® blanket range consists of the following categories:

• Mistral-Air Blankets Plus - SYK

• Mistral-Air Premium Blankets - SYK

• Mistral-Air Specialty Blankets - SYK

• Mistral-Air Warming Suits - SYK

User Manual - Accessories and disposables 24 of 44

Please refer to the Blanket manual (INT/R709-WO/x-xx/xx Mistral-Air Blankets) or the website of
The 37Company (www.the37company.com) for a description of the individual blankets.

User Manual - Accessories and disposables 25 of 44

5 Set up

5.1 Transport and storage

Store the device and accessories according to the transport and storage recommendations. See
chapter Specifications on page 39.

5.2 Connecting the power supply cord

1. Remove the anchor plate using a 4 mm hex key.

2. Attach the C13 plug of the power supply cord.

3. Reattach the anchor plate to lock the C13 plug by tightening

the 4 mm hex screw with a maximum torque of 1.5 ± 0.2
Nm or 13.3 ± 1.3 in-lb.

5.3 Attaching the mounting parts

The MA1200-PM mounting parts set consists of the following parts:

• 1x Wall mount

• 1x Cover

• 2x Handle

• 1x Cover plate

• 2x Bed support knobs

• 5x M6 x 6 Button head 4 mm hexagon screw

• 5x M4 x 16 Low Cylindrical head 3 mm hexagon screw

• 2x DELTA PT Torx 20IP screw 40 x 16

Caution!

Be careful not to scratch the front of the device.

1. Disconnect the device from the mains socket.

2. Place the device face-down on a soft surface.

User Manual - Set up 26 of 44

3. Remove the 4 M5 screws of the pole clamp using a 4 mm
hexagon key and remove the pole clamp.

4. Attach the Cover at the 3 indicated locations using the first
3 of the 5 M4x16 3 mm hexagon screws with a maximum torque
of 1.5 ± 0.2 Nm or 13.3 ± 1.3 in-lb.

If you do not attach the Handles mentioned in the step
below, you still need to tighten the last 2 of the 5 M4x16
3 mm hexagon screws.

5. Optional: Click the Handles into the sliders of the Cover and
tighten them at the 2 indicated locations using the last 2 of the
5 M4x16 3 mm hexagon screws.

Warning!

If the Handles are attached, always attach the Bed
support knobs for stability (see step 6).

6. Optional: Attach the 2 Bed support knobs using the 2 Torx
screws. Tighten the screws until the Bed support knobs cannot
be rotated anymore.

User Manual - Set up 27 of 44

7. Optional: Mount the Wall mount and Cover plate to a wall

55 mm

90 mm

55 mm

90 mm

using wall screws and plugs specifically designed for the used
wall material (not supplied). First check the adequacy (of the
surface) of the structure to which the wall mount will be attached
based on the mass of the device (see Specifications of the
device on page 39) and the center of gravity shown below.

Caution!

Use screws with a diameter which is small enough
(max. M6) not to damage the threads of the Cover plate
holes.

It is advised to account for the readability of the control
panel when deciding about the mounting height.

User Manual - Set up 28 of 44

8. Optional: Attach the Cover plate to the Wall mount using the
5 M6x6 4 mm hexagon screws. And attach the pole clamp to the
Cover plate using the 4 M5 screws which were removed during
step 3 using a 4 mm hexagon key.

User Manual - Set up 29 of 44

6 Operation

6.1 Safety instructions before operation

Warning!

When using the device, first read the warnings in Warnings on page 7.

The device is intended to be used only by trained clinicians. Intended patient population: adults and
pediatric patients.

The clinical areas are: operating room, recovery room, anaesthetic room, intensive care unit,
medical/surgical floors and emergency room. Mainly used during the entire perioperative pathway
(pre-, per-, and postoperative period).

6.2 Connecting the power supply

See Connecting the power supply cord on page 26 if the power supply cord is not yet
connected to the device.

1. Plug the device into an earthed mains socket.

2. The device automatically switches to the standby mode, which is indicated by the orange

standby LED located on the left side of the control panel.

6.3 Connecting the blanket

1. Take the selected Mistral-Air® blanket out of the package and follow the instructions on the

insert provided with the blanket box.

2. Place the unit near the hose inlet of the blanket.

3. Insert the end of the flexible hose into the air inlet port of the Mistral-Air® blanket.

4. Check if the hose is fully pushed in.

6.4 Turning on the device

Caution!

Stay in viewpoint of the control panel when the device is performing the self-test and
selecting the set-point.

1. Activate the device by pressing the standby button. The LED turns green.

2. The device will now perform a self-test, which includes a flash of all the LED's and a short

beep. When a LED or the audible beep fails, take the device out of use for repair.

User Manual - Operation 30 of 44

3. After the self-test, which lasts several seconds, the device will start blowing air at the default

temperature setting of 38°C.

6.5 Selecting the temperature

The description of the setpoints corresponds to the average temperature under the blanket. There
are four temperature setpoints:

• Fan only/ambient air: Ambient air temperature. The air temperature to the patient will depend on
ambient conditions and possible heat from the fan motor.

• 32°C: Low temperature.

• 38°C: Medium temperature.

• 43°C: High temperature.

The selected temperature is indicated by one of four green temperature selection indicator LED's,
see Overview of the control panel on page 16.

1. After the self-test, the device will start blowing air at the default temperature setting of 38°C.

2. Press the – button twice to deactivate the heater. The fan only/ambient air indicator turns

green and air at ambient temperature is blown to the patient.

3. Press the + button to activate the heater.

4. Press the + button multiple times to increase the air temperature at the blanket to a setpoint of

38°C, or 43°C.

5. Press the – button to decrease the temperature setpoint.

After selecting the desired temperature, the LED next to the temperature indicator symbol will flash
green. After reaching the set temperature (+/- 2°C), the green LED lights up continuously.

6.6 Stopping warming

1. Press the standby button.

2. Disconnect the hose from the blanket.

3. If desired, leave the blanket on/under the patient.

Caution!

To remove all power from the device, the mains power cord must be removed from the
electrical receptacle.

User Manual - Operation 31 of 44

7 Maintenance

Warning!

• Maintenance may only be performed by trained biomedical technicians or engineers.
Both user groups must be trained by certified trainers from Stryker.

• Preventive maintenance needs to be performed on an annual basis. Please refer to the
Mistral-Air® technical manual for maintenance, repair and calibration instructions. The
Mistral-Air® technical manual is available for download at the business partner menu of
the 37Company website.

Caution!

Clinical users may not repair or open the device in the event of a malfunction. This can
damage the appliance and will invalidate the warranty.

Have the device serial number ready when you contact the hospital service department or the local
supplier for technical support. The serial number is located on the label on the back of the device.

Before performing maintenance, consult the device insulation diagram below.

User Manual - Maintenance 32 of 44

7.1 Cleaning

Warning!

• Before you clean the device, disconnect the power supply cord to eliminate the risk of
electrocution.

• Do not use dripping wet cloths.

• Do not use ketones (MEK, acetone, etc.) or abrasive cleaners.

• Do not use alcohol based cleaners (except isopropyl alcohol and ethanol).

• Do not use acid based cleaners.

• Do not use oxidizing cleaners.

• Do not exceed the concentration specified by the manufacturer; or use premixed
solutions.

• Do not use steam sterilization (autoclave) or dry heat to sterilize the device.

• Do not immerse the device in liquids. Otherwise, the device can be damaged.

• Make sure that fluids cannot enter the electrical areas of the device.

• Do not place the device upside down, or on its sides.

• Clean hose at ambient temperature and make sure the hose is dry before use. Damage
to the hose may occur.

• Clean the hose at ambient temperature and make sure the hose is dry before use.
Damage to the hose or device may occur.

To clean the surface of the device:

1. Use a soft cloth lightly dampened with a solution of hand warm water with a mild detergent

solution or use one of the following disinfectants:

• isopropyl alcohol (isopropanol) based cleaners ≤ 90%

• ethyl alcohol (ethanol) based cleaners ≤ 90%

2. Use a moist cloth to remove excessive detergent or disinfectant.

3. Wipe the surface (including the hose).

4. Let the device air dry.

7.2 Corrective maintenance

Warning!

Maintenance may only be performed by trained biomedical technicians or engineers. Both
user groups must be trained by certified trainers from Stryker.

7.2.1 Replacing the filter (MA1200-1001-PM)

The accumulation of dust in the air filter will reduce the efficiency of the device. The filter must be
replaced when the Filter Replacement indicator is activated, or when indicated by visual inspection.
Only use parts provided by Stryker or your local distributor.

User Manual - Maintenance 33 of 44

Warning!

• Do not return the device from service without the filter present.

• Before performing a repair, disconnect the power supply cord to eliminate the risk of
electrocution. There are electrically live parts within the device when it is connected to a
power supply.

Caution!

Be careful not to scratch the front of the device.

1. Place the device face-down on a soft surface.

2. Disconnect the device from the mains socket.

3. Remove the two screws of the filter cap with a 4 mm hex key.

4. Remove the filter cap.

5. Remove the filter.

6. Place the replacement filter in the filter cap with the rubber

seal facing up.

User Manual - Maintenance 34 of 44

7. Place back the filter cap.

8. Place back the screws and tighten them with a maximum

torque of 2.1 ± 0.2 Nm or 18.6 ± 1.9 in-lb.

9. Connect the power plug to the wall socket and leave the
device in standby mode.

10. Press and hold the -, + and the alarm suppression buttons
simultaneously.

11. While holding down the three buttons, press the standby
button.

You will hear a beep and the device returns to standby
mode, indicating that the Filter timer has been reset.

12. Dispose the replaced filter according to hospital protocol.

7.2.2 Replacing the hose (MA1100-1018-PM & MA1100-1018XL-PM)

Warning!

• When replacing the hose, do not touch the temperature
sensors. If these sensors are touched in any way, they
can be damaged and out of calibration. This could
cause burns to the patient. If the temperature sensors
are touched or damaged, contact your local Stryker
representative.

• Before performing corrective maintenance (see
Corrective maintenance on page 33), disconnect the
power supply cord to eliminate the risk of electrocution.
There are electrically live parts within the device when it
is connected to a power supply.

Changing the 1.8 m or 5.9 ft long hose for a 3 m or 9.8 ft long hose reduces the
temperature of the air transferred to the patient with at least 1.9 °C.

User Manual - Maintenance 35 of 44

Caution!

Be careful not to scratch the front of the device.

1. Disconnect the device from the mains socket.

2. Place the device face-down on a soft surface.

3. Unscrew the screw that fixes the hose.

4. Unscrew the hose by rotating it clockwise.

5. Attach a new hose by rotating the hose anti-clockwise.

6. Pierce the hose with a sharp object at the location where the

screw must be attached. Apply and tighten the screw that fixes
the hose.

7. Dispose the replaced hose according to hospital protocol.

User Manual - Maintenance 36 of 44

7.2.3 Replacing the power cord

Warning!

• Use of accessories, transducers and cables other than those specified or provided
by Stryker of this equipment could result in increased electromagnetic emissions or
decreased electromagnetic immunity of this equipment and result in improper operation.

• Before performing corrective maintenance (see Corrective maintenance on page 33),
disconnect the power supply cord to eliminate the risk of electrocution. There are
electrically live parts within the device when it is connected to a power supply.

Caution!

Be careful not to scratch the front of the device.

1. Disconnect the device from the mains socket.

2. Place the device face-down on a soft surface.

3. Remove the anchor plate using a 4 mm hex key.

4. Unplug the C13 plug from the device.

5. Insert a new Stryker power supply cord and press it firmly into

place.

6. Reattach the anchor plate to lock the C13 plug by tightening
the 4 mm hex screw with a maximum torque of 1.5 ± 0.2 Nm or

13.3 ± 1.3 in-lb.

7. Perform an IEC 60601-1 electrical safety test.

8. Dispose the replaced power cord according to hospital

protocol.

User Manual - Maintenance 37 of 44

8 Troubleshooting

Problem Possible Cause Action

The device does not switch on.

The technical alarm is activated
and the warming device
stopped working.

Unplugged or damaged power
cord

No power to outlet Confirm power to outlet.

Poor or loose wire connections Ensure all connectors and

Blown fuses at PCA Send the device to a certified

Obstructed air flow path

Poor or loose wire connections,
or damaged heater or
electronics

Large mains power dip (≥ 30%)
for more than 1/60 of a second

Make sure power cord is
plugged in and is undamaged.
Replace cord if necessary.

terminals are secure.

service department for
technical support.

If this alarm occurs, check for
anything blocking the air flow
path (e.g. blocked inlet, blocked
hose end, or kink in the hose).
Remove the obstruction(s),
unplug the device from mains
power, reconnect it and verify
the alarm is gone. Press
standby to activate the device
again. In case of a recurring
alarm, send the device to a
certified service department for
technical support.

The microcontroller watchdog
alarm is activated.

The device does not deliver
enough air.

Other technical problems. Unidentified cause Send the device to a certified

Malfunctioning electronics Send the device to a certified

service department for
technical support.

Obstructed air flow path Check for anything blocking the

air flow path and remove the
obstacles.

Clogged air filter Send the device to the

technical department to replace
the filter with new filter supplied
by Stryker.

service department for
technical support.

User Manual - Troubleshooting 38 of 44

9 Specifications

9.1 Specifications of the device

General specifications

Article number MA1200-PM

Rated voltage 100-125 V~

Frequency 50/60 Hz

Device sound pressure 51 dBA

Average current 6.1 A

Peak current 10.0 A

Peak power 1000 VA

Average power at 43°C and t
Average power at 109°F and t

Fuses 10AHF/250V~

Air flow rate at nominal voltages and ambient
temperature (1.8 m hose)

Air flow rate at nominal voltages and ambient
temperature (5.9 ft hose)

GMDN code 36954 (circulating-air whole-body heating

Dimensions 16 cm x 35 cm x 40 cm (l x w x h)

Weight 5.2 kg

22 +/- 1.5°C

amb

72 +/- 2.7°F

amb

800 VA / 610 W

71 - 88 Nm³/h (depending on orientation of the
hose, supply voltage, type and drape of the
blanket)
42 - 52 CFM (depending on orientation of the
hose, supply voltage, type and drape of the
blanket)

system control unit)

6.3 in x 14 in x 16 in (l x w x h)

11.5 lb

Hose length 1.8 m (3 m hose optional)

5.9 ft (9.8 ft hose optional)

Power supply cord length 4.0 m

13 ft

Filtration HEPA H13 class filter, conform EN 1822-1:2009

Classification IEC 60601-1 Class I, Body Floating (BF)

Overvoltage category according to IEC 60664-1 Category II

Classification IEC 60529 IP23

User Manual - Specifications 39 of 44

Setpoint temperature Ambient air, 32°C, 38°C, 43°C

Ambient air, 90°F, 100°F, 109°F

Accuracy of temperature at the end of the hose ± 2.5 °C / 4.5 °F (under all validated operating

environmental conditions)

Setpoint reached after Under 30 seconds

Low temperature limit 10°C

50°F

Maximum average contact surface temperature 45.5°C (Compliant with IEC 80601-2-35)

114°F (Compliant with IEC 80601-2-35)

High temperature safety limit < 56°C (Compliant with IEC 80601-2-35)

< 133°F (Compliant with IEC 80601-2-35)

Auditory alarm signal sound pressure 80 dBA

Applicable technical standards IEC 60601-1:2005+A1:2012,

IEC 80601-2-35:2016

Expected lifetime device 7 year

Expected lifetime hose 1 year

The essential performance of the Mistral-Air Warming System is: when supplying air to the patient
“the Maximum CONTACT SURFACE TEMPERATURE” must be below the safe temperature limits
according to IEC 80601-2-35: 2009 + C1:2012 +C2:2015, Clause 201.11.1.2.1.102.

Validated operating environmental specifications

Ambient temperature 15°C to 30°C

59°F to 86°F

Relative humidity 30% to 75%

Validated transport and storage specifications

Ambient temperature -20°C to 70°C

-4°F to 158°F

Relative humidity 10% to 90% (non-condensing)

Atmospheric pressure 50 kPa to 106 kPa

7.3 psi to 15.4 psi

User Manual - Specifications 40 of 44

10 Electromagnetic compatibility

Warning!

• Use of accessories, transducers and cables other than those specified or provided by
Stryker of this device could result in increased electromagnetic emissions or decreased
electromagnetic immunity of this device and result in improper operation.

• Use of this device adjacent to or stacked with other equipment should be avoided
because it could result in improper operation. If such use is necessary, this device and
the other equipment should be observed to verify that they are operating normally.

• Portable RF communications equipment (including peripherals such as antenna cables
and external antennas) should be used no closer than 30 cm (12 inches) to any part of
the device, including cables specified by the manufacturer. Otherwise, degradation of the
performance of this device could result.

• The Emissions characteristics of this device make it suitable for use in industrial areas
and hospitals (CISPR 11 class A). If it is used in a residential environment (for which
CISPR 11 class B is normally required) this device might not offer adequate protection
to radio-frequency communication services. The user might need to take mitigation
measures, such as relocating or reorienting the device.

• It is possible that a technical alarm is triggered at a 30% dip. Degradation does not
affect ESSENTIAL PERFORMANCE and BASIC SAFETY and is therefore compliant.
Refer to Troubleshooting on page 38 and Specifications of the device on page 39 for a
solution.

• This device complies with IEC 60601-1-2:2014 for electromagnetic compatibility.
However, if electromagnetic interference with nearby devices is experienced, the user is
encouraged to take one or more of the following measures:

• Isolate the offending device.

• Reorient or relocate this device.

• Increase the distance between the interfering device and this device.

• Use another mains socket.

If electromagnetic incompatibility is still experienced, please contact your distributor.

10.1 Electromagnetic immunity

Guidance and manufacturer’s declaration - electromagnetic immunity

The device is intended for use in the electromagnetic environment specified below. The customer
or the user of the device should assure that it is used in such an environment.

Immunity test IEC60601 test level

± 8 kV contactElectromagnetic discharge (ESD)

EN-IEC 61000-4-2 (2009)

± 15 kV air

User Manual - Electromagnetic compatibility 41 of 44

Immunity test IEC60601 test level

Electrical fast transient (EFT) / burst
EN-IEC 61000-4-4 (2012)

EN-IEC61000-4-5 (2014)

Voltage dips, short interruptions and voltage variations on power
supply input lines
EN-IEC 61000-4-11 (2004)

Power frequency (50/60 Hz) magnetic field IEC
EN-IEC 61000-4-8 (2010)

Conducted RF
EN-IEC 61000-4-6 (2014)

Radiated RF
EN-IEC 61000-4-3 (2006) + A1 (2008) + A2 (2010)

± 2 kV

± 1 kV L-NSurge

± 2 kV L-PE / N-PE

0% UT for 0.5 cycle

0% UT for 1 cycle

70% UT for 25/30 cycles

0% UT for 250/300 sec

30 A/m

3 Vrms + 6 Vrms (ISM +
Amateur)

3 V/m

Proximity fields from RF wireless communications equipment
EN-IEC 61000-4-3 (2006) + A1 (2008) + A2 (2010)

Electrical transient conduction along supply lines
ISO 7637-2 (2004)

9-28 V/m

Not applicable (system not
intended for use in vehicles)

10.2 Electromagnetic emissions

Guidance and manufacturer’s declaration – electromagnetic emissions

The device is intended for use in the electromagnetic environment specified below. The customer
or the user of the device should assure that it is used in such an environment.

Emissions test Compliance

RF emissions
CISPR 11 (2015)

RF emissions
CISPR 11 (2015)

Group 1

Class A

User Manual - Electromagnetic compatibility 42 of 44

Emissions test Compliance

Harmonic emissions
IEC 61000-3-2 (2018)

Voltage fluctuations/flicker emissions
IEC 61000-3-3 (2017)

Not applicable (the device is suitable for use
in all establishments other than domestic and
those directly connected to the public low­voltage power supply network that supplies
buildings used for domestic purposes)

10.3 Recommended separation distances

Recommended separation distances between portable and mobile RF communications
equipment and the device

The device is intended for use in an electromagnetic environment in which radiated RF
disturbances are controlled. The customer or the user of the device can help prevent
electromagnetic interference by maintaining a minimum distance between portable and mobile RF
communications equipment (transmitters) and the device as recommended below, according to the
maximum output power of the communications equipment.

Separation distance according to frequency of transmitter (m)

Rated maximum
output power of
transmitter (W)

0.01 0.12 0.12 0.24

0.1 0.37 0.37 0.74

1 1.17 1.17 2.34

10 3.69 3.69 7.38

100 11.67 11.67 23.34

For transmitters rated at a maximum output power not listed above, the recommended separation
distance d in metres (m) can be estimated using the equation applicable to the frequency of the
transmitter, where P is the maximum output power rating of the transmitter in watts (W) according
to the transmitter manufacturer.

NOTE 1: At 80 MHz and 800 MHz, the separation distance for the higher frequency range applies.

NOTE 2: These guidelines may not apply in all situations. Electromagnetic propagation is affected
by absorption and reflection from structures, objects and people.

150 kHz to 80 MHz 80 MHz to 800 MHz 800 MHz to 2.5 GHz

User Manual - Electromagnetic compatibility 43 of 44

Manufaturer

The 37Company
Beeldschermweg 6F
NL-3821 AH Amersfoort
[phone] [phone]
The Netherlands
www.the37company.com
[e-mail]

Stryker Medical
3800 E. Centre Avenue
Portage, MI 49002
USA

www.stryker.com
[e-mail]