Patent US4664274A successfully refreshed from Google Patents.
US4664274A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blood-sampling tube
Assignee: C.A. GREINER & SONNE , A CORP. OF AUSTRIA GmbH
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Filing: 1986-01-24
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Granted: 1987-05-12
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Expires: 2006-01-24
Abstract
Abstract A blood-sampling tube assembly comprises a cap fitted onto the open end of a blood-sampling tube and having inner and outer walls between which the walls of the tube is snugly received. According to the invention, the cap is formed with an outwardly open and upwardly open compartment containing a self sealing membrane pierceable by a needle and held in place by a laminate, e.g. aluminum foil and a heat sealing layer, bonded to an end wall of the cap bridging the inner and outer walls and closing the membrane within the compartment.
Inventors
- 👤 Franz Konrad
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 03:41
CPC Classifications
B; B01; B01L; B01L3/00; B01L3/50; B01L3/508; B01L3/5082; B01L3/50825
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
124 words
A blood sampling tube assembly which comprises: a sampling tube having an open end and a wall surrounding a mouth of said tube and said open end; and a cap closing said mouth of said tube and formed with inner and outer walls snugly receiving said wall of said tube between them and having an end wall interconnecting said inner and outer walls against which a rim of said sampling tube can be pressed, said cap being formed with an outwardly open compartment within said inner wall closed by a laminate having a heat sealable layer bonded to said cap at said end wall and retaining within said compartment a self-sealing plug penetrable by a needle and sealing upon withdrawal of a needle therefrom.
Claim 2
Dependent Claim
124 words
A blood sampling tube assembly which comprises: a sampling tube having an open end and a wall surrounding a mouth of said tube and said open end; and a cap closing said mouth of said tube and formed with inner and outer walls snugly receiving said wall of said tube between them and having an end wall interconnecting said inner and outer walls against which a rim of said sampling tube can be pressed, said cap being formed with an outwardly open compartment within said inner wall closed by a laminate having a heat sealable layer bonded to said cap at said end wall and retaining within said compartment a self-sealing plug penetrable by a needle and sealing upon withdrawal of a needle therefrom.
Claim 3
Dependent Claim
33 words
The assembly defined in claim 1 wherein said cap is formed with a transverse partition at an intermediate location over the height of said inner wall, said plug being seated against said partition.
Claim 4
Dependent Claim
35 words
The assembly defined in claim 2, further comprising a sleeve extending axially from said partition and spaced from said inner wall while defining said compartment within said sleeve, said plug being received in said sleeve.
Claim 5
Dependent Claim
23 words
The assembly defined in claim 3 wherein said sleeve is provided with formations engaging in said membrane for retaining said plug in place.
Claim 6
Dependent Claim
19 words
The assembly defined in claim 2 wherein said partition extends fully across the cross section within said inner wall.
Claim 7
Dependent Claim
33 words
The assembly defined in claim 2 wherein said partition is in the form of a rim having a central opening aligned with a portion of said plug to be pierced by a needle.
Claim 8
Dependent Claim
45 words
The assembly defined in claim 6 wherein said plug substantially fills said compartment and said compartment is bounded by said laminate, said inner wall and said partition; said inner wall being formed between said partition and said laminate with formations engaging in said sealing plug.
Claim 9
Dependent Claim
12 words
The assembly defined in claim 7 wherein said formations are wedge-section ribs.
Claim 10
Dependent Claim
18 words
The assembly defined in claim 7 wherein said formations are spaced apart elements formed on said inner wall
Claim 11
Dependent Claim
20 words
The assembly defined in claim 4 wherein said formations are wedge-section ribs formed on an inner surface of said sleeve.
Claim 12
Dependent Claim
21 words
The assembly defined in claim 4 wherein said formations are spaced apart individual bosses projecting from said sleeve into said plug.
Claim 13
Dependent Claim
18 words
The assembly defined in claim 1 wherein said laminate comprises an aluminum foil bonded to heat sealing layer.
Claim 14
Dependent Claim
15 words
The assembly defined in claim 12 wherein said aluminum foil has a constant cross section.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-05-11 | 1990-11-10 | 1991-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-05-11 | 1994-11-10 | 1995-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-05-11 | 1998-11-10 | 1999-05-12 | $7700.00 | Window Closed / Lapsed |