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You are here: Home > Educational > Anaesthesia > VentiSorb - Soda Lime
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 maximised without restricting airflow. VentiSorb® offers excellent efficiency in absorbing carbon dioxide and other acidic contamination from the gas stream while minimising dust particle formation. The chemical attributes of active compound is naturally porous and hard which acts as a heat and moisture exchange.
The use of closed circuit systems within the theatre environment 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:
· Increased Moisture Output
· Improved heat Retention
· Minimal Anaesthetic Agent Degradation
The use of closed circuit systems within the theatre environment 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:
· Increased Moisture Output
· Improved heat Retention
· Minimal Anaesthetic Agent Degradation
View our Soda Lime Products
VentiSorb® - Soda Lime
Moisture Output
When the patient is incubated the upper airway is bypassed and results in a loss of humidity through exhaled gases. Oxygen and anaesthetic gases are dry and can have adverse effects and damage the mucosal wall of the respiratory tract.
While the nature of closed systems allows for expired gases to be returned to the patient and thus some of the moisture, VentiSorb® plays an active role in producing moisture. The chemical reaction between the expelled carbon dioxide gases and that of the calcium and sodium hydroxide compound releases water molecules that can then be used to humidify the inspired air in lieu of the upper airway.
Heat Retention
VentiSorb®'s active ingredients when exposed to CO2 not only produces moisture but releases heat as a by-product. this reaction warms the gases and creates ambient humidity.
Minimal Agent Degradation
VentiSorb® does not contain any added Potassium Hydroxide (KOH). therefore minimising agent degradation products such as compound A and Carbon Monoxide.
When the patient is incubated the upper airway is bypassed and results in a loss of humidity through exhaled gases. Oxygen and anaesthetic gases are dry and can have adverse effects and damage the mucosal wall of the respiratory tract.
While the nature of closed systems allows for expired gases to be returned to the patient and thus some of the moisture, VentiSorb® plays an active role in producing moisture. The chemical reaction between the expelled carbon dioxide gases and that of the calcium and sodium hydroxide compound releases water molecules that can then be used to humidify the inspired air in lieu of the upper airway.
Heat Retention
VentiSorb®'s active ingredients when exposed to CO2 not only produces moisture but releases heat as a by-product. this reaction warms the gases and creates ambient humidity.
Minimal Agent Degradation
VentiSorb® does not contain any added Potassium Hydroxide (KOH). therefore minimising agent degradation products such as compound A and Carbon Monoxide.
Physical Characteristics
The graphs below demonstrates VentiSorb®'s physical characteristics in comparison to other Soda Lime absorbers.
The graphs below demonstrates VentiSorb®'s physical characteristics in comparison to other Soda Lime absorbers.
Attrition Resistance
Dust
Colour Change Indicator
VentiSorb® is available in two different colour change indicators both conforming to international standards. They are either from Pink - White or from White - Violet. Both give clear visual indications as to the extent of the CO2 absorption and the life extent of the soda lime.
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.
Simulated Use Test
The graph below depicts the results using VentiSorb® and a non-granular brand under simulated and controlled minimal flow conditions. It clearly shows that the amount of time elapses before CO2 begins to breakthrough is substantial and that there is a constant rate of utilisation after 270 minutes, giving VentiSorb® a greater than 10% performance advantage.
VentiSorb® is available in two different colour change indicators both conforming to international standards. They are either from Pink - White or from White - Violet. Both give clear visual indications as to the extent of the CO2 absorption and the life extent of the soda lime.
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.
Simulated Use Test
The graph below depicts the results using VentiSorb® and a non-granular brand under simulated and controlled minimal flow conditions. It clearly shows that the amount of time elapses before CO2 begins to breakthrough is substantial and that there is a constant rate of utilisation after 270 minutes, giving VentiSorb® a greater than 10% performance advantage.
Purple
White
