Why is it so important to remove air from solid loads in a autoclave?
What is the problem if vacuum does not pull out all air prior to steam introduction?
If air is not removed will this show up during of temperature mapping? We use a long hose that may not have all air removed…
The reason to remove the air is … to expose the load to steam meaning to moisture… because it is, at a temperature around 121°C, an excellent sterilizing agent while air (dry air) at the same temperature is an extremely poor sterilizing agent. To be effective air should be at a temperature above 160°C.
Therefore, if you don’t remove all the air, some parts of the load to be sterilized will not be exposed to steam but to air entrapped as a bubble on your load. Then the parts exposed at 121°C but with air won’t be properly sterilized.
If u pour a 100°C water into a bucket which is with quarter/ some filled cool water what will happen the temperature comes down to a uniform level which is definitely less than 100°C.(Heat exchange)
Same thing will happen between pure steam and cool packs.
just assume, for a load sterilization, 25 minutes are required with 121°C, , because of this cool packs few minutes of that 25minutes may wasted and load will be exposed to 121 for rest of the time only which leads to improper sterilization.
ok
How many pulsation to be taken for air removal from autoclave?Is it mentioned in any guidline?How we cnfirm air is removed from autoclave?
Please give your valuable suggetion.
Thanks.
suction air from the chamber and placing couples causes continuous reduction of air that there’s always space for shutdown. in autoclaves fedegarii is about 3 cycles before the sterilization phase