Valves and valve actuation – With correlated flow path – Valve operated by joining flow path sections
Patent
1995-01-26
1996-07-09
Chambers, A. Michael
Valves and valve actuation
With correlated flow path
Valve operated by joining flow path sections
604256, 604905, F16L 3728
Patent
active
055337082
ABSTRACT:
The present invention provides a medical coupling site which is adapted to be attached directly to a standard male luer lock fitting. The coupling site includes a valve element contained within a tubular housing. The housing is provided with a threaded portion for engaging the threaded locking collar of a male luer lock whereby the male luer lock will be held in positive mechanical locking engagement with the coupling site. The valve element is provided with rib members extending inwardly from an inner wall of the valve element toward a slit formed in a diaphragm such that the rib members act to bias the slit to a closed position. The housing includes a flange extending radially inwardly over the diaphragm and defining a diameter for frictionally engaging a male luer in locking engagement. In addition, an exposed surface of the diaphragm is formed with surface texturing to define a roughened surface. The roughened surface reduces the surface friction between the diaphragm and a male luer as the luer is inserted through the diaphragm.
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Atkinson Gordon E.
Solomon Thomas J.
Chambers A. Michael
Vernay Laboratories, Inc.
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