US3842836A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-mix
Assignee: IMS Ltd
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Filing: 1973-02-09
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Granted: 1974-10-22
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Expires: 1993-02-09
Abstract
Abstract This patent describes a novel medicament container comprising a vial having an open end and a closed end, at least one slidable resilient stopper within the vial normally positioned intermediate the open end and the closed end and normally forming a fluid tight seal on the walls of the container, the stopper being slidable within said container away from the open end toward the closed end, the vial having a zone of a diameter larger then the largest lateral diameter of the stopper and into which the stopper is received as it is slid away from the open end to permit fluid communication from one side of the stopper to the other side of the stopper and thereby permit mixing of different materials positioned above and below the stopper, the container also having a closure at the open end to provide a multi-compartment medicament storage device.
Inventors
- 👤 R Ogle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:00
CPC Classifications
A; A61; A61J; A61J1/00; A61J1/14; A61J1/20; A61J1/2093; B; B65; B65D; B65D25/00; B65D25/02; B65D25/04; B65D25/08; B65D25/082; A61J1/2003; A61J1/202; A61J1/2041; A61M; A61M5/00; A61M5/14; A61M5/162; A61M2005/1623; Y; Y10; Y10S; Y10S215/00; Y10S215/08
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
213 words
A two compartment rigid mixing vial comprising a first compartment having a closed end, generally cylindrical walls, a second compartment having generally cylindrical walls, said first and second compartments having a common center line and being separated by an inwardly extending annular ring in the vial wall, a resilient imperforate first stopper in said second compartment, said first compartment being larger in diameter than said second compartment and said first stopper being receivable in said first compartment, a second resilient stopper sealing the end of said second compartment opposite said first stopper, said first stopper comprises an upper portion having one or more sealing rings forming a seal on the inside walls of said second compartment, and a lower portion comprising a series of generally vertical interruptions around the periphery of the lower portion, and an annular indentation immediately above said interruptions, said indentation being complementary in shape to said annular ring and receiving said ring to form a seal, said interruptions, when said sealing rings are held beyond the end of said second compartment by said interruptions, forming a force compression fit with the walls of said second compartment and the spaces between the interruptions being adapted to provide a gas passage from the interior of said first compartment to the exterior.
Claim 2
Dependent Claim
213 words
A two compartment rigid mixing vial comprising a first compartment having a closed end, generally cylindrical walls, a second compartment having generally cylindrical walls, said first and second compartments having a common center line and being separated by an inwardly extending annular ring in the vial wall, a resilient imperforate first stopper in said second compartment, said first compartment being larger in diameter than said second compartment and said first stopper being receivable in said first compartment, a second resilient stopper sealing the end of said second compartment opposite said first stopper, said first stopper comprises an upper portion having one or more sealing rings forming a seal on the inside walls of said second compartment, and a lower portion comprising a series of generally vertical interruptions around the periphery of the lower portion, and an annular indentation immediately above said interruptions, said indentation being complementary in shape to said annular ring and receiving said ring to form a seal, said interruptions, when said sealing rings are held beyond the end of said second compartment by said interruptions, forming a force compression fit with the walls of said second compartment and the spaces between the interruptions being adapted to provide a gas passage from the interior of said first compartment to the exterior.
Claim 3
Dependent Claim
37 words
The vial of claim 1 wherein said second stopper has a diaphragm in that face of the stopper facing the inside of said second compartment through which a probe may be inserted to upset said first stopper.
Claim 4
Dependent Claim
23 words
The vial of claim 1 wherein said first compartment contains a powder and said second vial contains a liquid diluent for said powder.
Claim 5
Dependent Claim
29 words
The vial of claim 1 wherein said second stopper contains a hole bridged by a diaphragm in that face of the stopper facing the inside of said second compartment.
Claim 6
Dependent Claim
67 words
The vial of claim 1 wherein said second stopper contains a hole bridged by a diaphragm and a shallow dish-like depression surrounding said hole in that face of the stopper facing the inside of said second compartment whereby said hole acts as a collection point for the mixed material and substantially all of the contents of the vial can be removed therefrom when said diaphragm is pierced.
Claim 7
Dependent Claim
95 words
The vial of claim 1 wherein said second stopper contains a hole bridged by a diaphragm and a shallow dish-like depression surrounding said hole in that face of the stopper facing the inside of said second compartment whereby said hole acts as a collection point for the mixed material and substantially all of the contents of the vial can be removed therefrom when said diaphragm is pierced, said second stopper having an annular flange, the underside of which abuts the end of said vial to prevent movement of said second stopper into said second compartment.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-10-21 | 1978-04-22 | 1978-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-21 | 1982-04-22 | 1982-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-21 | 1986-04-22 | 1986-10-22 | $7700.00 | Window Closed / Lapsed |