Patent EP0370720A2 successfully refreshed from Google Patents.
EP0370720A2
Expired / Lapsed
EP
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Improved hemostasis valve
Assignee: Schneider USA Inc
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Filing: 1989-11-20
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Granted: —
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Expires: 2009-11-20
Abstract
Abstract The hemostasis valve gasket for use in an introducer which is integrally formed from an elastomeric material so as to exhibit resiliency and which is designed to close about small diameter objects such as a guide wire and about larger diameter objects such as a working catheter or guide catheter to prevent air or blood leakage. The gasket includes a cylindrical base (10) with a central bore (12) therethrough and a hollow convex domed shaped member (11) projecting therefrom. The hollow dome shaped member (11) terminates in a concave section. The concave section of the dome shaped member (11) has at least one arcuate slit (13) formed in the external surface which extends inwardly toward the hollow chamber to form a central, self-sealing passage aligned with the central bore (12) of the cylindrical base member (10).
Inventors
- 👤 Gregory G. Brucker
- 👤 Wade M. Johnson
- 👤 Edward A. Barlow
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 22:07
CPC Classifications
A; A61; A61M; A61M39/00; A61M39/02; A61M39/06; A61M39/0606; A61M2039/062; A61M2039/0633; A61M2039/0646; A61M2039/0653; A61M2039/0686; Y; Y10; Y10S; Y10S604/00; Y10S604/905; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7879; Y10T137/788
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
162 words
A hemostasis valve gasket comprising: (a) a cylindrical base (10) formed from a resilient material and having a central passage (12) therethrough; (b) a dome-shaped member (11) projecting outwardly from said base (10), said dome-shaped member (11) having an internal hollow chamber (14) in communication with said central passage (12) of the cylindrical base (10); and (c) at least one arcuate slit (13) formed in the external surface of said dome-shaped member (11) and extending inwardly toward said hollow chamber (14) to meet along a common tangent for forming a central, self-sealing passage between said internal chamber (14) and said slit (13) so that an implement can be passed through the central passage (12) of the base (10), through the internal chamber (14) and out through said self-sealing passage with said cylindrical base (10) and said dome-shaped member (11) forming a seal around said implement when it is present and to allow closure of the self-sealing passage when no implement is present.
Claim 2
Dependent Claim
162 words
A hemostasis valve gasket comprising: (a) a cylindrical base (10) formed from a resilient material and having a central passage (12) therethrough; (b) a dome-shaped member (11) projecting outwardly from said base (10), said dome-shaped member (11) having an internal hollow chamber (14) in communication with said central passage (12) of the cylindrical base (10); and (c) at least one arcuate slit (13) formed in the external surface of said dome-shaped member (11) and extending inwardly toward said hollow chamber (14) to meet along a common tangent for forming a central, self-sealing passage between said internal chamber (14) and said slit (13) so that an implement can be passed through the central passage (12) of the base (10), through the internal chamber (14) and out through said self-sealing passage with said cylindrical base (10) and said dome-shaped member (11) forming a seal around said implement when it is present and to allow closure of the self-sealing passage when no implement is present.
Claim 3
Dependent Claim
29 words
The apparatus of Claim 1 having a pair of arcuate slits which intersect at right angles and are tormed in the external surface of said dome shaped member (11).
Claim 4
Dependent Claim
12 words
The apparatus of Claim 1 wherein said resilient material is natural rubber.
Claim 5
Dependent Claim
12 words
The apparatus of Claim 1 wherein said resilient material is silicone rubber.
Claim 6
Dependent Claim
66 words
An article of manufacture comprising an integrally molded resilient valve gasket having a cylindrical base (10) with a central bore (12) therethrough and a hollow convex dome-shaped member (11) projecting outwardly therefrom, said hollow convex dome-shaped member (11) having an internal concave slit (13) formed therein, the central portion of said slit (13) and said central bore (12) forming a central passage through said valve body.
Claim 7
Dependent Claim
66 words
An article of manufacture comprising an integrally molded resilient valve gasket having a cylindrical base (10) with a central bore (12) therethrough and a hollow convex dome-shaped member (11) projecting outwardly therefrom, said hollow convex dome-shaped member (11) having an internal concave slit (13) formed therein, the central portion of said slit (13) and said central bore (12) forming a central passage through said valve body.
Claim 8
Dependent Claim
45 words
The article of Claim 5 wherein said central passage is adapted to receive an implement therethrough, and said base (10) and said dome (11) cooperate to seal said passage around an elongated implement when present and to close the passage when no implement is present.
Claim 9
Dependent Claim
15 words
The article of Claim 6 wherein said valve body is made of an elastomeric material.
Claim 10
Dependent Claim
12 words
The article of Claim 7 wherein said elastomeric material is silicone rubber.
Claim 11
Dependent Claim
12 words
The article of Claim 7 wherein said elastomeric material is natural rubber.
References Cited (Backward Citations)
No citation records indexed.
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