Hub member
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 28, 1992
Grant Date -
N/A
app pub date -
Jan 4, 1991
filing date -
Jan 12, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A valve device for a hub member of a catheter or the like. An open cup-shaped hollow cylinder with a slit bottom portion is axially displaceable in the chamber of the housing of the hub member. In the closed position, a helical spring presses the edge of the opening of the hollow cylinder against the inner end of an insertion opening for a connecting member. The insertion opening is formed at the housing and has a diameter larger than the inner circumference of the edge of the opening of the hollow cylinder. The bottom portion is pulled into an adapted central hole of a closing ring fixed in the housing, through which hole the bottom portion may be pushed axially against the spring action for releasing its legs formed by the slit. Throughout this operation the resilient hollow cylinder is free of stresses, so that the edges of the slit in the bottom portion are not deformed. Nevertheless, the closing ring ensures an effective closure of the flow channel in the hub member, sealing it both against air entering the hub member and against blood oozing out.
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Cited Art Landscape
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