초록 ▼

An anti-cross contamination valve for use in medical fluid delivery systems comprises a valve housing having a first port, a second port, and a third port that open into a hollow interior. A valve body is rotatably mounted within the hollow interior and has at least one fluid passageway therethrough

An anti-cross contamination valve for use in medical fluid delivery systems comprises a valve housing having a first port, a second port, and a third port that open into a hollow interior. A valve body is rotatably mounted within the hollow interior and has at least one fluid passageway therethrough. A knob is attached to the valve body and extends outside of the valve housing. The at least one passageway includes a first fluid passageway that opens the first port to the third port when the valve body is rotated to a first position with respect to the valve housing. The second port is closed when the valve is in its first position. The at least one passageway also includes a second fluid passageway that opens the second port to the third port when the valve body is rotated to a second position with respect to the valve housing. The first port is closed when the valve is in its second position. In order to prevent the possibility of cross contamination, the valve also includes stop barriers and/or a special passageway/port geometry that prevents the possibility of the first port coming into fluid communication with the second port, or vice versa.

대표청구항 ▼

[ We claim:] [1.] An anti-cross contamination valve comprising:a valve housing having only a plurality of first ports and a third port different from said plurality of first ports that all open into a hollow interior;a valve body rotatably mounted within said hollow interior and having at least one

[ We claim:] [1.] An anti-cross contamination valve comprising:a valve housing having only a plurality of first ports and a third port different from said plurality of first ports that all open into a hollow interior;a valve body rotatably mounted within said hollow interior and having at least one fluid passageway therethrough;said at least one passageway including a first fluid passageway that opens a first port of said plurality of first ports to said third port when said valve body is rotated to a first position with respect to said valve housing, all of said plurality of first ports, except said first port being closed when said valve body is in said first position;said at least one passageway including a second fluid passageway that opens a second port of said plurality of first ports to said third port when said valve body is rotated to a second position with respect to said valve housing, all of said plurality of first ports, except said second port being closed when said valve body is in said second position; andmeans for preventing said at least one fluid passageway from opening any of said plurality of first ports to one another.