Allon
®
User Manual
DDT-063-000 Rev C Belmont Medical Technologies Page 14 of 106
C
HAPTER
2 S
YSTEM
D
ESCRIPTION
General Description
The Allon
®
system maintains desired patient body temperature before, during
and after surgery. The desired patient temperature is set by the clinician and
covers the normothermia to hypothermia range. Most surgical procedures
require normothermia in order to compensate for body heat losses resulting
from general anesthesia, reduced metabolic rate and exposure of body organs
and skin to the cold operating theatre environment.
The system is composed of two elements, the Allon
®
device and the
ThermoWrap
®
disposable wrap. The Allon
®
device performs the functions of
heat pump, water circulating pump, and control unit.
The control unit constantly monitors the patient's core temperature every 133
milliseconds through specific sensors and, using its on-board body
temperature control algorithm, adjusts water temperature to the desired set
point. The heat pump brings the water to the required temperature and the
pump circulates it to the wrap. The touch screen allows the user to change
settings in an easy and convenient way.
The ThermoWrap
®
wrap is a flexible heat exchanger through which the water
circulates. It is designed to be in close contact with a large area of the body,
thus effecting heat transfer with the body. ThermoWrap are single use,
disposable and come in a variety of shapes and sizes to address various types
of surgical procedures and patient.
The device can prewarm the wrap from 23°C to 37°C in less than 5 minutes.
Allon
®
System
The Allon
®
system consists of the following elements:
–
Allon
®
device
–
ThermoWrap
®
–
Accessories
