Medical coupling site valve body
First Claim
1. A medical coupling site comprising:
- a tubular body portion defining a longitudinal axis, said body portion including first and second longitudinal ends and interior and exterior surfaces;
a diaphragm extending diametrically across said body portion at said first end;
means defining a slit extending diametrically across said diaphragm;
wherein said exterior surface includes biasing means for engaging a cylindrical housing surrounding said body portion whereby said slit is biased closed; and
said biasing means comprises a diameter of said exterior surface, measured in a first direction, being greater than a diameter of said exterior surface, measured in a second direction transverse to said first direction.
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Accused Products
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 retainer. The retainer is provided with outwardly extending lugs 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. In addition, the valve element is formed with biasing means for engaging an inner wall of the retainer whereby the slit is further biased to a closed position.
187 Citations
16 Claims
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1. A medical coupling site comprising:
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a tubular body portion defining a longitudinal axis, said body portion including first and second longitudinal ends and interior and exterior surfaces; a diaphragm extending diametrically across said body portion at said first end; means defining a slit extending diametrically across said diaphragm; wherein said exterior surface includes biasing means for engaging a cylindrical housing surrounding said body portion whereby said slit is biased closed; and said biasing means comprises a diameter of said exterior surface, measured in a first direction, being greater than a diameter of said exterior surface, measured in a second direction transverse to said first direction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A medical coupling site including an elastomeric valve element mounted within a rigid housing, said elastomeric valve element comprising:
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a tubular body portion defining a longitudinal axis, said body portion including first and second longitudinal ends and interior and exterior surfaces, said exterior surface defining a minor diameter; a diaphragm extending diametrically across said body portion at said first end; means defining a slit extending diametrically across said diaphragm; and biasing means defining an increased diameter, greater than said minor diameter, for said body portion on said exterior surface for engaging an inner wall of said rigid housing whereby said body portion is distorted to bias said slit closed. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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Specification