Patent US4828581A successfully refreshed from Google Patents.
US4608043A
Expired / Lapsed
US
⏱️ 0.0 years remaining
I.V. fluid storage and mixing system
Assignee: Abbott Laboratories
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Filing: 1984-06-22
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Granted: 1986-08-26
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Expires: 2004-06-22
Abstract
Abstract A system for separately storing and sterilely mixing a diluent and a medicament within a dual chambered flexible container for eventual use in an I.V. administration system. Mixing of the contents of the two chambers is accomplished by compressing the sides of the flexible container thus causing a weakened portion in the partition between the two chambers in the flexible container to rupture, thereby providing fluid communication between the chambers and effecting intermixing of the contents thereof.
Inventors
- 👤 Mark E. Larkin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:58
CPC Classifications
A; A61; A61J; A61J1/00; A61J1/14; A61J1/20; A61J1/2093; A61J1/05; A61J1/10; A61J1/2003; A61J1/202; A61J1/2024
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
170 words
A device for separately storing and subsequently mixing a liquid and a medicament comprising: a container formed of flexible thermoplastic material and having at least one port; a partition seal dividing said flexible container, said partition seal spanning the interior of said flexible container to define first and second chambers within said flexible container, the partition seal being formed by a sealing together of opposing walls of the flexible container, said partition seal having at least one weakened section, the weakened section being a section of the partition seal of sufficiently reduced width in comparison to the remainder of the partition seal that the seal in the weakened section will fail under the force of manually generated pressures in the fluid; said first chamber containing the liquid in fluid communication with said port; said second chamber containing the medicament; whereby compressing the walls of said first chamber of the flexible container causes said liquid to rupture the weakened portion of said partition seal and mix the liquid and the medicament.
Claim 2
Independent Claim
170 words
A device for separately storing and subsequently mixing a liquid and a medicament comprising: a container formed of flexible thermoplastic material and having at least one port; a partition seal dividing said flexible container, said partition seal spanning the interior of said flexible container to define first and second chambers within said flexible container, the partition seal being formed by a sealing together of opposing walls of the flexible container, said partition seal having at least one weakened section, the weakened section being a section of the partition seal of sufficiently reduced width in comparison to the remainder of the partition seal that the seal in the weakened section will fail under the force of manually generated pressures in the fluid; said first chamber containing the liquid in fluid communication with said port; said second chamber containing the medicament; whereby compressing the walls of said first chamber of the flexible container causes said liquid to rupture the weakened portion of said partition seal and mix the liquid and the medicament.
Claim 3
Dependent Claim
33 words
The device as defined in claim 1 wherein said flexible container includes a first port in fluid communication with said first chamber and a second port in fluid communication with said second chamber.
Claim 4
Dependent Claim
27 words
The device as defined in claim 2 wherein one of said ports is adapted to receive means for the passage of fluid into an I.V. administration set.
Claim 5
Dependent Claim
22 words
The device as defined in claim 1 wherein one chamber contains a liquid diluent and the other chamber contains a powdered medicament.
Claim 6
Dependent Claim
19 words
The device as defined in claim 3 wherein the chamber containing powdered medicament has an opaque foil inner lining.
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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) | 1989-08-25 | 1990-02-24 | 1990-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-08-25 | 1994-02-24 | 1994-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-08-25 | 1998-02-24 | 1998-08-26 | $7700.00 | Window Closed / Lapsed |