Anti-cross contamination valve and fluid delivery systems using

Details Anti-cross contamination valve and fluid delivery systems using Anti-cross contamination valve and fluid delivery systems using

1995-01-20

1996-07-30

McDermott, Corrine M.

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

604 80, 13762541, 13762547, A61M 500

Patent

active

055406688

ABSTRACT:
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.

REFERENCES:
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patent: 3957082 (1976-05-01), Fuson et al.
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patent: 5059173 (1991-10-01), Sacco
patent: 5336174 (1994-08-01), Daoud et al.
patent: 5466228 (1995-11-01), Evans

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