Patent US5295658A successfully refreshed from Google Patents.
US5295658A
Expired / Lapsed
US
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Medical coupling site including slit reinforcing members
Assignee: MEDICAL VENTURES A KANSAS LLC LLC
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Filing: 1993-06-01
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Granted: 1994-03-22
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Expires: 2013-06-01
Abstract
Abstract The present invention provides a medical coupling site including an elastomeric valve element defined by a tubular body portion and a diaphragm extending diametrically across an end of the body portion. The diaphragm includes a slit having opposing slit ends which terminate in spaced relation to an inner wall of the body portion. First and second elastomeric stiffening ribs are formed integrally with the diaphragm and the body portion adjacent to the ends of the slit, and the stiffening ribs act to prevent the diaphragm from tearing adjacent to the slit ends and facilitate alignment of adjoining surfaces in the diaphragm defining the slit.
Inventors
- 👤 Gordon E. Atkinson
- 👤 Daniel J. Demma
- 👤 David O. Werbil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:38
CPC Classifications
F; F16; F16L; F16L29/00; F16L29/005; A; A61; A61M; A61M39/00; A61M39/02; A61M39/04; A61M39/045; Y; Y10; Y10S; Y10S604/00; Y10S604/905
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
114 words
A medical coupling site valve element comprising: a body portion including first and second body portion ends and inner and outer walls defining an interior and an exterior of said body portion, said body portion defining a longitudinal axis; a diaphragm extending diametrically across said body portion interior at said first body portion end; means defining a slit extending diametrically across said diaphragm, said slit including opposing ends; and ribs formed integrally with said diaphragm and extending radially inwardly from said inner wall to locations adjacent to said ends of said slit to prevent said diaphragm from tearing adjacent to said slit when a male luer is inserted into said site through said slit.
Claim 2
Dependent Claim
114 words
A medical coupling site valve element comprising: a body portion including first and second body portion ends and inner and outer walls defining an interior and an exterior of said body portion, said body portion defining a longitudinal axis; a diaphragm extending diametrically across said body portion interior at said first body portion end; means defining a slit extending diametrically across said diaphragm, said slit including opposing ends; and ribs formed integrally with said diaphragm and extending radially inwardly from said inner wall to locations adjacent to said ends of said slit to prevent said diaphragm from tearing adjacent to said slit when a male luer is inserted into said site through said slit.
Claim 3
Dependent Claim
18 words
The valve element of claim 1, wherein said diaphragm and said ribs are formed of an elastomeric material.
Claim 4
Dependent Claim
16 words
The valve element of claim 1, wherein said body portion is formed of an elastomeric material.
Claim 5
Dependent Claim
26 words
The valve element of claim 1, wherein said ribs intersect and lie parallel to a plane containing said longitudinal axis and extending parallel to said slit.
Claim 6
Dependent Claim
20 words
The valve element of claim 1, wherein said ribs are located between said diaphragm and said second body portion end.
Claim 7
Dependent Claim
28 words
The valve element of claim 1, including two ribs located on diametrically opposite sides of said inner wall and extending radially inwardly toward respective ends of said slit.
Claim 8
Dependent Claim
33 words
The valve element of claim 1, wherein said diaphragm has a convex inner face facing toward said second body portion end and said ribs extend radially inwardly to intersect said convex inner face.
Claim 9
Dependent Claim
27 words
The valve element of claim 1, including a biasing rib intersecting and lying parallel to a plane containing said longitudinal axis and extending perpendicular to said slit.
Claim 10
Dependent Claim
30 words
The valve element of claim 1, wherein said ribs each include opposing side wall portions extending from said inner wall substantially parallel to a plane extending parallel to said slit.
Claim 11
Dependent Claim
16 words
The valve element of claim 9, wherein said opposing side wall portions comprise substantially planar walls.
Claim 12
Dependent Claim
122 words
A medical coupling site valve element comprising: a body portion formed of an elastomeric material, said body portion including first and second body portion ends and inner and outer walls defining an interior and an exterior of said body portion; a diaphragm formed integrally with said body portion and extending diametrically across said body portion interior at said first body portion end; means defining a slit extending diametrically across said diaphragm, said slit including opposing ends; and ribs formed integrally with said diaphragm and extending radially inwardly from said inner wall to locations adjacent to said ends of said slit to prevent said diaphragm from tearing adjacent to said slit when a male luer is inserted into said site through said slit.
Claim 13
Dependent Claim
122 words
A medical coupling site valve element comprising: a body portion formed of an elastomeric material, said body portion including first and second body portion ends and inner and outer walls defining an interior and an exterior of said body portion; a diaphragm formed integrally with said body portion and extending diametrically across said body portion interior at said first body portion end; means defining a slit extending diametrically across said diaphragm, said slit including opposing ends; and ribs formed integrally with said diaphragm and extending radially inwardly from said inner wall to locations adjacent to said ends of said slit to prevent said diaphragm from tearing adjacent to said slit when a male luer is inserted into said site through said slit.
Claim 14
Dependent Claim
18 words
The valve element of claim 11, wherein said diaphragm and said ribs are formed of an elastomeric material.
Claim 15
Dependent Claim
23 words
The valve element of claim 11, wherein said ribs extend from an inner face of said diaphragm toward said second body portion end.
Claim 16
Dependent Claim
12 words
The valve element of claim 13, wherein said inner face is convex.
Claim 17
Dependent Claim
30 words
The valve element of claim 11, wherein said ribs each include opposing side wall portions extending from said inner wall substantially parallel to a plane extending parallel to said slit.
Claim 18
Dependent Claim
16 words
The valve element of claim 15, wherein said opposing side wall portions comprise substantially planar walls.
Claim 19
Dependent Claim
147 words
A valve element comprising: a tubular body portion formed of an elastomeric material and including first and second body portion ends and inner and outer walls defining an interior and an exterior of said body portion, said body portion defining a longitudinal axis; an elastomeric diaphragm formed integrally with said body portion and extending diametrically across said body portion interior at said first body portion end; means defining a slit extending diametrically across said diaphragm and including opposing slit ends in spaced relation to said inner wall; and first and second elastomeric stiffening ribs formed integrally with said diaphragm and said body portion, said stiffening ribs extending radially inwardly from opposing sides of said inner wall and terminating adjacent to respective slit ends, said stiffening ribs acting to prevent said diaphragm from tearing adjacent to said slit ends and facilitating alignment of adjoining surfaces defining said slit.
Claim 20
Dependent Claim
147 words
A valve element comprising: a tubular body portion formed of an elastomeric material and including first and second body portion ends and inner and outer walls defining an interior and an exterior of said body portion, said body portion defining a longitudinal axis; an elastomeric diaphragm formed integrally with said body portion and extending diametrically across said body portion interior at said first body portion end; means defining a slit extending diametrically across said diaphragm and including opposing slit ends in spaced relation to said inner wall; and first and second elastomeric stiffening ribs formed integrally with said diaphragm and said body portion, said stiffening ribs extending radially inwardly from opposing sides of said inner wall and terminating adjacent to respective slit ends, said stiffening ribs acting to prevent said diaphragm from tearing adjacent to said slit ends and facilitating alignment of adjoining surfaces defining said slit.
Claim 21
Dependent Claim
67 words
The valve element of claim 15, including first and second elastomeric biasing ribs formed integrally with said diaphragm and said body portion, said biasing ribs extending radially inwardly from opposing sides of said inner wall in a direction perpendicular to said stiffening ribs and terminating adjacent to said adjoining surfaces defining said slit, said biasing ribs acting to bias said adjoining surfaces together to close said slit.
References Cited (Backward Citations)
US3837381A
Cited
US4143853A
Cited
US4436519A
Cited
US4436519B1
Cited
US4568336A
Cited
US4629450A
Cited
US4607671A
Cited
US4610674A
Cited
US4759756A
Cited
US4786281A
Cited
US4673394A
Cited
US4673400A
Cited
US4765588A
Cited
WO1988001881A1
Cited
US4850975A
Cited
US5100394A
Cited
US5171234A
Cited
WO1990011103A2
Cited
US5104379A
Cited
US5092840A
Cited
US5114408A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-03-21 | 1997-09-20 | 1998-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-03-21 | 2001-09-20 | 2002-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-03-21 | 2005-09-20 | 2006-03-22 | $7700.00 | Window Closed / Lapsed |