Method and apparatus for preventing bacteriological contaminatio

Details Method and apparatus for preventing bacteriological contaminatio Method and apparatus for preventing bacteriological contaminatio

1992-05-29

1993-04-20

Sever, Frank

Liquid purification or separation

Processes

Liquid/liquid solvent or colloidal extraction or diffusing...

210652, 210541, 433 80, A61G 1702

Patent

active

052040046

ABSTRACT:
A method and apparatus are disclosed for preventing bacterial contamination from being introduced into a dental patient's mouth from water flowing through a dental tool water line. A flexible water line typically used for supplying water to a dental syringe, high-speed hand piece, or ultrasonic scaler has been found to support and encourage the growth of a significant biofilm that serves as a source of bacteria. To prevent the bacteria from being introduced into a patient's mouth by water flowing through the line, and thus into the patient's system, an in-line water filter is installed within the water line supplying water to the dental tool, at a point adjacent thereto. Conventional Luer fittings on the in-line water filter facilitate its quick installation and replacement. In addition, a cap protects the sterility of the outlet port of the in-line water filter during the installation process. The in-line water filter includes a microporous membrane that blocks bacteria and other particulate matter larger than approximately 0.2 microns, so that water flowing from the outlet port of the in-line water filter is substantially sterile.

REFERENCES:
Infection Control 91 Report, Infection-Control Products and News for the Dental Profession, "Infection Control Conference Highlights Practice, Research, & Industry Concerns," Dental Products Report, Sep. 1991, pp. 92 and 98.

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