Patent US3719213A successfully refreshed from Google Patents.
US3719213A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for adding medicaments to a sealed expandable parenteral fluid container
Assignee: Barter Laboratories Inc
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Filing: 1971-03-03
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Granted: 1973-03-06
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Expires: 1991-03-03
Abstract
Abstract A rigid chamber adapted to receive an expandable container such as a plastic bag of parenteral fluid contains an opening connected to a source of vacuum and an opening through which a tubular port on the container may be placed so that it will be accessible from the exterior of the chamber to permit the connection thereto of a vial containing a material such as a medicament to be added to the bag. By selective control of the vacuum supply to the chamber and of the position of the medicament vial relative to the fluid level in the bag, it is possible to add the contents of vials containing not only freely flowing liquid additives but also very viscous ones as well as powdered or granular materials. The system can also be operated in such a way that the contents of a plurality of medicament vials or syringes can be added to the bag even though the volume of the material to be transfered from the plurality of medicament containers is greater than the initial free air volume in the bag.
Inventors
- 👤 J Quick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:06
CPC Classifications
B; B65; B65B; B65B3/00; B65B3/04; B65B3/10; B65B3/14
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
171 words
A process for adding a dry or not readily flowable liquid product in a first container to a readily flowable liquid in an expandable second container, each of said containers being connected by a passageway between the containers which is sealed from the atmosphere, said process comprising the steps of: applying a vacuum to the exterior of said expandable second container to cause a reduced pressure to be established in the interior of said first container; releasing said applied vacuum while the liquid in said second container at least partially covers said passageway to cause a portion of said liquid to be drawn into said first container to cause the product therein to mix with the said portion of said liquid; and reapplying a vacuum to the exterior of said expandable second container while the liquid mixture in said first container at least partially covers said passageway, to expand said second container and to create a reduced pressure therein to draw the mixture from said first container into said second container.
Claim 2
Dependent Claim
171 words
A process for adding a dry or not readily flowable liquid product in a first container to a readily flowable liquid in an expandable second container, each of said containers being connected by a passageway between the containers which is sealed from the atmosphere, said process comprising the steps of: applying a vacuum to the exterior of said expandable second container to cause a reduced pressure to be established in the interior of said first container; releasing said applied vacuum while the liquid in said second container at least partially covers said passageway to cause a portion of said liquid to be drawn into said first container to cause the product therein to mix with the said portion of said liquid; and reapplying a vacuum to the exterior of said expandable second container while the liquid mixture in said first container at least partially covers said passageway, to expand said second container and to create a reduced pressure therein to draw the mixture from said first container into said second container.
Claim 3
Dependent Claim
171 words
A process for adding a dry or not readily flowable liquid product in a first container to a readily flowable liquid in an expandable second container, each of said containers being connected by a passageway between the containers which is sealed from the atmosphere, said process comprising the steps of: applying a vacuum to the exterior of said expandable second container to cause a reduced pressure to be established in the interior of said first container; releasing said applied vacuum while the liquid in said second container at least partially covers said passageway to cause a portion of said liquid to be drawn into said first container to cause the product therein to mix with the said portion of said liquid; and reapplying a vacuum to the exterior of said expandable second container while the liquid mixture in said first container at least partially covers said passageway, to expand said second container and to create a reduced pressure therein to draw the mixture from said first container into said second container.
Claim 4
Dependent Claim
171 words
A process for adding a dry or not readily flowable liquid product in a first container to a readily flowable liquid in an expandable second container, each of said containers being connected by a passageway between the containers which is sealed from the atmosphere, said process comprising the steps of: applying a vacuum to the exterior of said expandable second container to cause a reduced pressure to be established in the interior of said first container; releasing said applied vacuum while the liquid in said second container at least partially covers said passageway to cause a portion of said liquid to be drawn into said first container to cause the product therein to mix with the said portion of said liquid; and reapplying a vacuum to the exterior of said expandable second container while the liquid mixture in said first container at least partially covers said passageway, to expand said second container and to create a reduced pressure therein to draw the mixture from said first container into said second container.
Claim 5
Dependent Claim
169 words
A process for adding the contents of a first container to a sealed, expandable second container of liquid wherein the total volume of the contents of said first container is greater than a volume of air in the second container, comprising the steps of: connecting the interior of said first container to the interior of said second container through a resealable inlet port; exposing the exterior of said second container to a source of vacuum to expand said second container and the volume of air therein while positioning the connected containers so that solid and liquid contents of said first container are drawn into said second container by the resultant reduced pressure created by said source of vacuum; decreasing the reduced pressure created by said source of vacuum while the resealable inlet port communicates with said volume of air in said second container, whereby a portion of the air in said second container will be expelled into said first container; and disconnecting said first container from said second container.
Claim 6
Dependent Claim
169 words
A process for adding the contents of a first container to a sealed, expandable second container of liquid wherein the total volume of the contents of said first container is greater than a volume of air in the second container, comprising the steps of: connecting the interior of said first container to the interior of said second container through a resealable inlet port; exposing the exterior of said second container to a source of vacuum to expand said second container and the volume of air therein while positioning the connected containers so that solid and liquid contents of said first container are drawn into said second container by the resultant reduced pressure created by said source of vacuum; decreasing the reduced pressure created by said source of vacuum while the resealable inlet port communicates with said volume of air in said second container, whereby a portion of the air in said second container will be expelled into said first container; and disconnecting said first container from said second container.
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) | 1976-03-05 | 1976-09-04 | 1977-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-05 | 1980-09-04 | 1981-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-05 | 1984-09-04 | 1985-03-06 | $7700.00 | Window Closed / Lapsed |