US4181140A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Frangible resealable closure for a flexible tube having hold open means
Assignee: Baxter International Inc
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Filing: 1978-02-10
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Granted: 1980-01-01
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Expires: 1998-02-10
Abstract
Abstract Valve means in a flexible tube, for example, tubing for connecting blood bags, are provided, which comprises a tubular portion having a closed end, and an elongated, generally rigid member, carried on the exterior of the closed end and positioned within the flexible tube. Frangible means are provided to permit the opening of the closed end by manual manipulation of the elongated member from outside of the flexible tube. The elongated, rigid member is adapted to fit in sealing relationship within the tubular portion after opening of the closed end, to permit resealing of the valve. The elongated, generally rigid member carries longitudinal vanes to provide flow channels along its length. In accordance with this invention, a pair of said vanes in opposed relationship extends rearwardly of the end of the central portion of the rigid member, and the flexible tube defines a bore portion position to receive and resiliently hold the proposed veins when the frangible means is broken and the rigid member is separated from the tubular portion. This prevents accidental reclosing of the valve means by the rigid member moving to obstruct the tubular portion.
Inventors
- 👤 Edward L. Bayham
- 👤 Ronald A. Williams
- 👤 David W. Ammann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:57
CPC Classifications
A; A61; A61M; A61M39/00; A61M39/22; A61M39/221; A61J; A61J1/00; F; F16; F16K; F16K13/00; F16K13/04; Y; Y10; Y10T; Y10T137/00; Y10T137/1624; Y10T137/1632; Y10T137/1692; Y10T137/1752
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
182 words
In a flexible tube, valve means positioned in said tube, said valve means comprising: a tubular portion having a closed end, an elongated, generally rigid member carried on the exterior of said closed end and positioned within said flexible tube, and frangible means to permit the opening of said tubular portion adjacent said closed end by rupture of an area of weakness by manual manipulation of the elongated member from outside of the flexible tube, causing separation of the elongated member from said tubular portion, said elongated, generally rigid member generally defining longitudinal vanes to provide flow channels along its length, the improvement comprising, in combination: at least some of its vanes extending rearwardly of the end of the central portion of said rigid member, said flexible tube defining a bore portion positioned to receive and resiliently hold said extending vanes without closing said flow channels when the frangible means is broken and said rigid member is separated from the tubular portion, to prevent accidental reclosing of the said tubular portion opening by the rigid member moving to obstruct said tubular portion.
Claim 2
Dependent Claim
182 words
In a flexible tube, valve means positioned in said tube, said valve means comprising: a tubular portion having a closed end, an elongated, generally rigid member carried on the exterior of said closed end and positioned within said flexible tube, and frangible means to permit the opening of said tubular portion adjacent said closed end by rupture of an area of weakness by manual manipulation of the elongated member from outside of the flexible tube, causing separation of the elongated member from said tubular portion, said elongated, generally rigid member generally defining longitudinal vanes to provide flow channels along its length, the improvement comprising, in combination: at least some of its vanes extending rearwardly of the end of the central portion of said rigid member, said flexible tube defining a bore portion positioned to receive and resiliently hold said extending vanes without closing said flow channels when the frangible means is broken and said rigid member is separated from the tubular portion, to prevent accidental reclosing of the said tubular portion opening by the rigid member moving to obstruct said tubular portion.
Claim 3
Dependent Claim
42 words
The valve means of claim 1 in which said vanes are of unequal length, a pair of opposed vanes of equal length extending rearwardly of the end of the central portion to be received by the bore portion of the flexible tube.
Claim 4
Dependent Claim
19 words
The valve means of claim 2 in which said bore portion is conical in shape for receiving said vanes.
Claim 5
Dependent Claim
33 words
The valve means of claim 2 in which said elongated, generally rigid member includes a tapered portion for fitting within the bore of the tubular portion after opening, for reclosing the valve again.
Claim 6
Dependent Claim
32 words
The valve means of claim 4 in which stud means are provided to said elongated, generally rigid member to limit the extent of insertion of said rigid member into the tubular portion.
Claim 7
Dependent Claim
165 words
In a flexible tube, valve means positioned in said tube, said valve means comprising a tubular portion having a closed end, an elongated, generally rigid member carried on the exterior of said closed end and positioned within said flexible tube, and frangible means to permit the opening of said tubular portion by rupture of an area of weakness by manual manipulation of the elongated member from outside of the flexible tube causing separation of the elongated member from said tubular portion, said elongated, generally rigid member defining longitudinal vanes to provide flow channels along its length, the improvement comprising, in combination, at least some of its vanes extending rearwardly at the end of the central portion of said rigid member, said flexible tube defining a bore portion positioned to receive and resiliently hold said extending vanes without closing said flow channels when the frangible means is broken, to prevent accidental reclosing of said valve means by the rigid member moving to obstruct said tubular portion.
Claim 8
Dependent Claim
165 words
In a flexible tube, valve means positioned in said tube, said valve means comprising a tubular portion having a closed end, an elongated, generally rigid member carried on the exterior of said closed end and positioned within said flexible tube, and frangible means to permit the opening of said tubular portion by rupture of an area of weakness by manual manipulation of the elongated member from outside of the flexible tube causing separation of the elongated member from said tubular portion, said elongated, generally rigid member defining longitudinal vanes to provide flow channels along its length, the improvement comprising, in combination, at least some of its vanes extending rearwardly at the end of the central portion of said rigid member, said flexible tube defining a bore portion positioned to receive and resiliently hold said extending vanes without closing said flow channels when the frangible means is broken, to prevent accidental reclosing of said valve means by the rigid member moving to obstruct said tubular portion.
Claim 9
Dependent Claim
42 words
The valve means of claim 6 in which said vanes are of unequal length, a pair of opposed vanes of equal length extending rearwardly of the end of the central portion to be received by the bore portion of the flexible tube.
Claim 10
Dependent Claim
19 words
The valve means of claim 7 in which said bore portion is conical in shape for receiving said vanes.
Claim 11
Dependent Claim
32 words
The valve means of claim 8 in which stud means are provided to said elongated, generally rigid member to limit the extent of insertion of said rigid member into the tubular portion.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-12-31 | 1983-07-02 | 1984-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-12-31 | 1987-07-02 | 1988-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-12-31 | 1991-07-02 | 1992-01-01 | $7700.00 | Window Closed / Lapsed |