Care Essentials
CWS4000 Cocoon Warming System Operator Manual
QPF 053 Revision S
Date 07.05.2012 Supersedes: 08.02.2012
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.
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.
When used with Care Essentials patient warming blankets, the Care Essentials CWS4000
provides a continuous method of warming patients intended for preventing and treating
hypothermia. 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 below.
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, 34
o
C,
37
o
C, 40
o
C, 43
o
C, or 46
o
C. When a temperature of 46
o
C is selected, the setting automatically
drops to 43
o
C 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.
This Manual presents all the relevant operation information for the Care Essentials CWS4000
Cocoon Warming System. This information is intended for the fair 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
product improvement and 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.
