Prevacuum sterilizer

Definition

A prevacuum sterilizer is a type of autoclave that uses a vacuum pump to remove air from the chamber before steam is introduced. This ensures more effective penetration of steam for sterilization.

5 Must Know Facts For Your Next Test

1. Prevacuum sterilizers achieve higher temperatures quicker compared to traditional gravity displacement sterilizers.
2. The vacuum phase in the cycle helps eliminate air pockets, which can hinder the sterilization process.
3. They are particularly effective for porous materials and instruments with lumens.
4. Prevacuum sterilizers typically operate at temperatures around 121°C to 134°C.
5. These devices are commonly used in healthcare settings for the sterilization of surgical instruments.

Review Questions

Related terms

Gravity Displacement Sterilizer: A type of autoclave that relies on gravity to displace air with steam.

Autoclave:

A device that uses steam under pressure to kill harmful bacteria, viruses, fungi, and spores.

Sterilization Indicator: An object or material used to verify that items have been subjected to the proper conditions for sterility.