Patent ID: 6203321
Filing Date: 2001-03-20
Classification: A61C,Y10S

Abstract:
A method of eliminating cross-contaminants in a dental suction system, the method comprising:providing a dental ejector tip constructed for insertion into a patient's mouth and removal of fluid contaminants therefrom upon application of a vacuum from a vacuum source;providing a backflow prevention device operably connected to the dental ejector tip, free of a valve member between the backflow prevention device and the dental ejector tip, to receive fluid therefrom upon application of vacuum from the vacuum source, the backflow prevention device comprising:a distal portion having an inlet;a proximal portion having an outlet; andvalve componentry disposed within the backflow prevention device between the inlet and the outlet, the valve componentry being constructed to substantially prevent contaminant backflow upon release of vacuum from the vacuum source;disconnecting the dental ejector tip and the backflow prevention device from the vacuum source;disposing of the dental ejector tip and the backflow prevention device; andconnecting a second dental ejector tip and a second backflow prevention device with the vacuum source.