VentiSorb® is a carbon dioxide absorbent with excellent
efficiency and low resistance for use within closed circle
systems.
VentiSorb is a medical grade soda lime prepared in granulated
form. The individual granules are specifically non-uniform in shape
and size so that CO2 filtration is maximized without restricting
airflow. VentiSorb offers excellent efficiency in absorbing carbon
dioxide and other acidic contamination from gas stream while
minimizing dust particle formation. The chemical attributes of the
active compound is naturally porous and hard which acts as a heat
and moisture exchange.
The use of closed circuit systems within the operating room has
increased dramatically over the last few years in that low flow
capability allows for use on paediatrics as well as adults. The use
of VentiSorb in closed systems offers the following benefits:
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Increased Moisture
Output - Minimal
Anaesthetic Agent
Degradation -
Improved Heat Retention
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Operator Benefits
The benefits of using closed circle systems for their
low flow anaesthesia delivery capabilities extends beyond
patient benefits. The implication for the operating department
being that anaesthetic gases used to induce patients does not
unnecessarily pollute the operating room.
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Physical
Characteristics
The graphs below demonstrates VentiSorb's physical characteristics
in comparison to other Soda Lime absorbers. |
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Colour Change
Indicator
When exhausted VentiSorb will change colour indicating that the
soda lime needs to be changed. This should be used alongside a CO2
monitor to confirm compound exhaustion.
VentiSorb is available in two different colour change indicators
both conforming to international standards. They are either from
Pink to White or from White to Violet. Both give clear visual
indications as to the extent of the CO2 absorption and the life
extent of the soda lime.
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Particle Packing
VentiSorb granules range from 2.5 - 5.0 in size, allowing for a
tightly packed layered canister increasing the efficiency of the
CO2 absorption without significantly increasing resistance.
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