Patent US5613663A successfully refreshed from Google Patents.
US5613663A
Expired / Lapsed
US
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Valve device
Assignee: B Braun Melsungen AG
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Filing: 1995-09-27
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Granted: 1997-03-25
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Expires: 2015-09-27
Abstract
Abstract In a valve device in a connection piece, it is provided that the valve body is configured as a valve flap (20) with a closed surface, which valve flap is mounted in the connection piece via an elastic radial tongue (21) and rests against an annular supporting surface (26) in the closed position, and that the sliding member pivots the valve flap (20) in opening direction about the radial tongue (21) by pressure against its closed surface.
Inventors
- 👤 Klaus J. Schmidt
- 👤 Juergen Fuchs
- 👤 Heinz Wiegel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:30
CPC Classifications
A; A61; A61M; A61M39/00; A61M39/22; A61M39/26; A61M39/02; A61M39/06; A61M39/0693; A61M2039/0633; A61M2039/0666
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
117 words
A valve device in a connection piece comprising an open ended flow channel having a valve body arranged therein which is adapted to be brought into an opened position by means of an axially displaceable sliding member, the valve body being configured as a valve flap having a closed surface and being mounted in the connection piece via an elastic radial tongue and resting against an annular supporting surface in a closed position, and the sliding member pivots the valve flap in opening direction about the radial tongue by pressure against the closed surface thereof, the supporting surface being integrally formed with a centrally perforated sealing membrane mounted arranged between the valve flap and the connection piece.
Claim 2
Dependent Claim
117 words
A valve device in a connection piece comprising an open ended flow channel having a valve body arranged therein which is adapted to be brought into an opened position by means of an axially displaceable sliding member, the valve body being configured as a valve flap having a closed surface and being mounted in the connection piece via an elastic radial tongue and resting against an annular supporting surface in a closed position, and the sliding member pivots the valve flap in opening direction about the radial tongue by pressure against the closed surface thereof, the supporting surface being integrally formed with a centrally perforated sealing membrane mounted arranged between the valve flap and the connection piece.
Claim 3
Dependent Claim
21 words
The valve device according to claim 1, wherein the sliding member is an outer cone of a coupling assembly or syringe.
Claim 4
Dependent Claim
31 words
The valve device according to claim 1, wherein the sliding member is configured as a tubular body being arranged displaceably in the flow channel and being secured against dropping out therein.
Claim 5
Dependent Claim
17 words
The valve device according to claim 1, wherein the sealing membrane is a disc of elastomer material.
Claim 6
Dependent Claim
27 words
The valve device according to claim 1, wherein the sealing membrane comprises a thick-walled outer flange edge received in an inner circumferential groove of the connection piece.
Claim 7
Dependent Claim
27 words
The valve device according to claim 1, wherein the sealing membrane comprises a torus surrounding the central perforation at least on that side facing the valve flap.
Claim 8
Dependent Claim
18 words
The valve device according to claim 3, wherein the tubular body is integrally formed with the sealing membrane.
Claim 9
Dependent Claim
27 words
The valve device according to claim 3, wherein a radial sealing lip directed inwards within the bore is configured at the rear end of the tubular body.
Claim 10
Dependent Claim
50 words
The valve device according to claim 1, wherein the radial tongue connects the valve flap with an outer ring, wherein the tongue, the valve flap, and the outer ring are formed integrally of elastic flat material, and wherein the outer ring is clamped between ring surfaces in the connection piece.
Claim 11
Dependent Claim
45 words
Use of the valve device according to claim 1 in combination with a vascular catheter, said valve device having inserted in its flow channel of the connection piece a puncture cannula or mandrin holding the valve flap in opened position without actuating the sliding member.
References Cited (Backward Citations)
DE2817102A1
Cited
EP0261317A2
Cited
US4842591A
Cited
US5044401A
Cited
US5125903A
Cited
US5456675A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-03-24 | 2000-09-23 | 2001-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-03-24 | 2004-09-23 | 2005-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-03-24 | 2008-09-23 | 2009-03-25 | $7700.00 | Window Closed / Lapsed |