Why do hospital supply room instruments need water-soluble lubricants instead of paraffin oil or petroleum jelly?

Paraffin oil or petroleum jelly is widely used to prevent rust or lubrication of medical devices, but these two lubricants are insoluble in water, which will block the water vapor of high temperature and high pressure sterilizing and reduce the success rate of sterilizing; the action of water vapor makes medical devices easy to rust; the operation needs to be manually applied to complete, and it is difficult to control the quality; the gauze used for applying gauze or gauze pads used repeatedly, which will easily lead to bacterial growth, and easy to make the cleaned medical devices subject to secondary contamination. In order to improve the quality of medical equipment, control hospital cross-infection, prolong the service life of medical equipment, since the use of water-soluble instrument lubricant, will be cleaned after the medical equipment soaked in 30 ~ 60s, can be in the surface of the medical equipment to form a layer of high temperature and high pressure sterilized water vapor penetration of the protective film, to prevent the oxygen in the air and the surface of the equipment, and has a lubricating and rust-resistant. It can form a protective film on the surface of medical equipment which can be penetrated by high temperature and high pressure sterilized water vapor and prevent the oxygen in the air from contacting with the surface of the equipment.