Cocoon CWS 4000 User manual

Care Essentials
CWS4000 Cocoon Warming System Operator Manual
QPF 053 Revision Y
WWWWW
Date 02.11.2015
Supersedes: 19.12.2014
Page 1

Care Essentials
CWS4000 Cocoon Warming System Operator Manual
QPF 053 Revision Y
Date 02.11.2015
Supersedes: 19.12.2014
Page 2
CONTENTS
1. OPERATION...........................................................................................................4
1.1. Unit Setup........................................................................................................4
1.2. Getting Started.................................................................................................5
1.3. Unit Operation Procedure ................................................................................5
2. PATIENT WARMING BLANKETS ...........................................................................6
2.1. Cocoon Disposable Patient Warming Blankets................................................6
2.2. Cocoon Reusable Patient Warming Blankets...................................................6
2.3. Practical Issues to Consider When Selecting and Using Blankets....................6
2.4. CWS4000 Operating Mode..............................................................................7
2.5. CWS 4000 Standby Mode................................................................................7
3. SYMBOLS...............................................................................................................8
4. SAFETY PRECAUTIONS......................................................................................10
4.1. Danger...........................................................................................................10
4.2. Contra-indications..........................................................................................10
4.3. Warning.........................................................................................................10
4.4. Caution..........................................................................................................11
4.5. Electromagnetic Interference.........................................................................11
5. PREVENTATIVE MAINTENANCE ........................................................................12
5.1. Cleaning ........................................................................................................12
5.2. Filter Service..................................................................................................12
5.3. Electrical Safety and Performance Inspection................................................12
6. TROUBLESHOOTING...........................................................................................13
6.1. Warming Blanket Will Not Inflate....................................................................13
6.2. Standby Indicator Will Not Light.....................................................................13
6.3. Equipment Repairs ........................................................................................13
7. ACCESSORIES.....................................................................................................13
7.1. Stand.............................................................................................................13
7.2. User Training.................................................................................................13
8.1.............................................................................................................................14
8. WARRANTY..........................................................................................................14
9. RETURNING OF UNIT FOR REPAIR ...................................................................14
9.1. Australia.........................................................................................................14
9.2. Worldwide......................................................................................................14
10. SPECIFICATIONS.................................................................................................15
11. APPROVALS.........................................................................................................16
12. APPENDIX 1. COCOON CWS4000 PRODUCT INFORMATION .........................18
13. APPENDIX 2. COCOON REUSABLE BLANKET WASHING AND FOLDING
INSTRUCTIONS...........................................................................................................20

Care Essentials
CWS4000 Cocoon Warming System Operator Manual
QPF 053 Revision Y
Date 02.11.2015
Supersedes: 19.12.2014
Page 3
INTRODUCTION
This device should only be operated under the guidance/supervision of qualified
medical/nursing personnel or other paramedical staff trained in the use of Convective Patient
Warming Systems.
Intended Use
The Cocoon Convective Warming System is indicated for hyper or hypothermic patients or
normothermic patients for whom induced hyper or hypothermia or localized temperature therapy
is clinically indicated. In addition, the Cocoon Convective Warming System can be used to
provide patient thermal comfort when conditions exist that may cause patients to become too
cold or too warm. The Cocoon Convective Warming System can be used with adult and
pediatric patients.
It is a pre-requisite for all persons using this medical device to understand the information
contained in this Manual. Read and understand this Manual and all precautions prior to
operating the Cocoon Convective Warming System.
The Cocoon Convective Warming System consists of a CWS4000 and a warming blanket. A
connecting hose conducts heated air from the CWS4000 to the warming blanket.
Figure 1 Convective Warming System
Care Essentials recommend that a program of regular routine maintenance, electrical safety
and performance inspections be instituted for the CWS4000 as described in section 5.3.
The CWS4000 is a mains-powered, microprocessor-controlled device that delivers a continuous
flow of temperature-controlled air through a flexible hose to the warming blanket. The
temperature of the air delivered to the blanket can be set to one of six settings - ambient, 34oC
(93.2ºF), 37oC (98.6ºF), 40oC (104ºF), 43oC (109.4ºF), or 46oC (114.8ºF). When a temperature
of 46oC (114.8ºF) is selected, the setting automatically drops to 43oC (109.4ºF) after 10 minutes.
The CWS4000 will not cool the air delivered to the blanket below the ambient temperature of the
room.
Air is drawn into the sides of the CWS4000 and passes through a bacteriological HEPA filter.
The CWS4000 includes a number of over-temperature prevention systems and in a temperature
fault condition it automatically shuts down and signals an alarm. The CWS4000 continuously
monitors system integrity and performance from the time of start-up.
This Manual presents all the relevant operation information for the Care Essentials CWS4000
Cocoon Warming System. This information is intended for the purposes of operation and
maintenance of the CWS4000. It is provided as Commercial-In-Confidence material to the Care
Essentials Distributor or CWS4000 owner and shall not be made available to any other
organization or person without the specific written permission of Care Essentials.
While every attempt has been made to ensure this manual is accurate and complete, no
responsibility is taken for any errors or omissions. Care Essentials has a policy of continuous

Care Essentials
CWS4000 Cocoon Warming System Operator Manual
QPF 053 Revision Y
Date 02.11.2015
Supersedes: 19.12.2014
Page 4
product improvement. Product specifications and component types are subject to change
without notice.
If you, as a user of this manual, have any relevant comments or questions about the CWS4000
or this Manual, your communication with Care Essentials would be welcomed. Our contact
details are located on the first page of this Manual.
1. OPERATION
1.1. Unit Setup
The CWS4000 may be placed on the floor, mounted on the bed rails of the bed using the bedrail
hooks, or clamped to an IV pole using the IV pole clamp. When using an IV pole, do not mount
the CWS4000 higher than 1 metre or it could tip over. Do not place the CWS4000 on a bed
surface. Note that if the CWS4000 is placed on the floor, increased levels of dust and lint could
reduce filter life.
Figure 2 IV pole or stand mounted Figure 3 Bed rail mounted
Figure 4 Pole mounting height limit

Care Essentials
CWS4000 Cocoon Warming System Operator Manual
QPF 053 Revision Y
Date 02.11.2015
Supersedes: 19.12.2014
Page 5
Figure 5 Operator control panel
1.2. Getting Started
Plug the mains cable into a conventional, properly earthed mains power socket-outlet and
switch it on. The green Standby indicator (B) will illuminate and the CWS4000 will beep when
power is connected.
Ensure that air is not prevented from entering the inlet slots at the sides by blankets or other
objects.
Remove the CE Marked warming blanket from its packaging. Unfold the warming blanket and
place it over or under the patient as per the blanket instruction. Connect the air delivery hose to
the warming blanket by pushing the plastic fitting into the air inlet port and securing it firmly.
1.3. Unit Operation Procedure
Select the desired temperature on the control panel by pressing the ambient temperature
output button (C) or one of the output temperature selection buttons (E). The appropriate
green or yellow light (D or F) will indicate the selected temperature setting. Another temperature
may be selected at any time. When using 34oC (93.2ºF), 37oC (98.6ºF), 40oC (104ºF), 43oC
(109.4ºF), or 46oC (114.8ºF) temperature settings, place your hand under the warming blanket
to confirm that the CWS4000 is supplying warm air. Placement of a blanket, sheet or drape over
the inflated warming blanket may be undertaken to maximize the efficiency and minimize the
heat loss from the system. When using additional covers it is important to ensure air flow
through the convective warming blanket is not disrupted.
The internal timer will automatically decrease the temperature setting from 46oC (114.8ºF) to
43oC (109.4ºF) after 10 minutes. This timer can be reset by re-selecting the 46oC (114.8ºF)
temperature setting.
Switch the unit off by pressing the standby button (A). The green standby indicator (B) will
illuminate when the unit is off.
The unit will automatically switch off in an alarm condition and the green standby indicator (B)
will illuminate together with the red fault alarm indicator (H). In the event that the fault alarm
indicator (H) illuminates, disconnect the CWS4000 from the patient and from the mains power
supply and have it serviced by trained personnel.