US4940543A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plasma collection set
Assignee: Baxter International Inc
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Filing: 1988-11-30
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Granted: 1990-07-10
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Expires: 2008-11-30
Abstract
Abstract An apparatus and method of separating a component from a collected quantity of fluid. The apparatus includes a dual member centrifuge and an associated fluid flow transfer set. The transfer set has a collection container in which a quantity of fluid can be initially accumulated. The collection container is formed as a disk-shaped plastic member with an elongated generally radially extending barrier member formed therein. A component collection container is in fluid flow communication with the disk-shaped container. The method provides for centrifugation of the collection container in the dual member centrifuge thereby separating out the selected fluid component. The component can then be pumped out of the collection container into the component accumulation container. The residual fluid can be sealed in the collection container for later use. The component collection container can be separated and sealed also for later use.
Inventors
- 👤 Richard I. Brown
- 👤 David E. Cerny
- 👤 John T. Foley
- 👤 Joseph C. West, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:50
CPC Classifications
B; B04; B04B; B04B5/00; B04B5/04; B04B5/0407; B04B5/0428; B04B5/0442; A; A61; A61M; A61M2205/00; A61M2205/15; B04B2005/045
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
164 words
A fluid collection set, usable in the collection of a quantity of fluid, and positionable in part in a receiving chamber of a centrifuge for the purpose of separating, by centrifugation, a selected fluid component, the set comprising: a flexible, disk-shaped collection container defining an interior collection volume in which a quantity of fluid can be collected with said collection container having a circular, sealed periphery, and a generally radial container wall heat seal line extending from said periphery toward a center thereof, thereby blocking circumferential fluid flow along said periphery; a fluid flow contact with a proximal end and a distal end, said proximal end in fluid flow communication with said interior collection volume; a separated component container in fluid flow communication with said distal end of said conduit with said disk-shaped collection container rotatable in the receiving chamber while simultaneously coupled to said component container so as to accumulate the component separated from the quantity of fluid rotated in the receiving chamber.
Claim 2
Dependent Claim
164 words
A fluid collection set, usable in the collection of a quantity of fluid, and positionable in part in a receiving chamber of a centrifuge for the purpose of separating, by centrifugation, a selected fluid component, the set comprising: a flexible, disk-shaped collection container defining an interior collection volume in which a quantity of fluid can be collected with said collection container having a circular, sealed periphery, and a generally radial container wall heat seal line extending from said periphery toward a center thereof, thereby blocking circumferential fluid flow along said periphery; a fluid flow contact with a proximal end and a distal end, said proximal end in fluid flow communication with said interior collection volume; a separated component container in fluid flow communication with said distal end of said conduit with said disk-shaped collection container rotatable in the receiving chamber while simultaneously coupled to said component container so as to accumulate the component separated from the quantity of fluid rotated in the receiving chamber.
Claim 3
Dependent Claim
24 words
A set as in claim 1 with said collection container formed of first and second planar plastic members sealingly joined along said circular periphery.
Claim 4
Dependent Claim
15 words
A set as in claim 2 with said conduit formed as a flexible tubular member.
Claim 5
Dependent Claim
20 words
A set as in claim 2 including a second separated component container in fluid flow communication with said collection container.
Claim 6
Dependent Claim
13 words
A set as in claim 4 including means for filling said collection container.
Claim 7
Dependent Claim
14 words
A set as in claim 1 wherein the centrifuge is a dual member centrifuge.
Claim 8
Dependent Claim
18 words
A set as in claim 6 with said separated component container positionable, fixedly located outside of the centrifuge.
Claim 9
Dependent Claim
28 words
A set as in claim 7 with said generally radially extending heat seal line formed as a radially extending sealed region between first and second planar plastic members.
Claim 10
Dependent Claim
37 words
A set as in claim 1 wherein said proximal end of said fluid flow conduit is located in a region of said collection volume which will contain only the separated fluid component after centrifugation has taken place.
Claim 11
Dependent Claim
184 words
A fluid collection set, usable in the collection of a quantity of whole blood, and positionable in part in a receiving chamber of a centrifuge for the purpose of separating, by centrifugation, a selected blood component, the set comprising: a flexible, plastic, disk-shaped collection container defining an interior collection volume in which a quantity of whole blood from a donor can be collected with said collection container having a circular periphery with first and second opposed walls of said container sealed together with a generally radial heat seal line extending from a region of said circular periphery toward a center thereof to form a barrier to circumferential flow adjacent said periphery; a fluid flow circuit with a proximal end and a distal end, said proximal end in fluid flow communication with said interior collection volume; a separated component container in fluid flow communication with said distal end of said conduit with said disk-shaped collection container rotatable in the receiving chamber while simultaneously coupled to said component container so as to accumulate the component separated from the quantity of blood rotated in the receiving chamber.
Claim 12
Dependent Claim
184 words
A fluid collection set, usable in the collection of a quantity of whole blood, and positionable in part in a receiving chamber of a centrifuge for the purpose of separating, by centrifugation, a selected blood component, the set comprising: a flexible, plastic, disk-shaped collection container defining an interior collection volume in which a quantity of whole blood from a donor can be collected with said collection container having a circular periphery with first and second opposed walls of said container sealed together with a generally radial heat seal line extending from a region of said circular periphery toward a center thereof to form a barrier to circumferential flow adjacent said periphery; a fluid flow circuit with a proximal end and a distal end, said proximal end in fluid flow communication with said interior collection volume; a separated component container in fluid flow communication with said distal end of said conduit with said disk-shaped collection container rotatable in the receiving chamber while simultaneously coupled to said component container so as to accumulate the component separated from the quantity of blood rotated in the receiving chamber.
Claim 13
Dependent Claim
24 words
A set as in claim 10 with said collection chamber formed of first and second planar plastic members sealingly joined along said circular periphery.
Claim 14
Dependent Claim
28 words
A set as in claim 11 with said proximal end of said fluid flow conduit extending into said collection chamber through a selected region of said curved periphery.
Claim 15
Dependent Claim
29 words
A set as in claim 12 with said proximal end extending into a region of said collection container containing essentially only the separated component after centrifugation has taken place.
Claim 16
Dependent Claim
20 words
A set as in claim 11 including a second separated component container in fluid flow communication with said collection container.
Claim 17
Dependent Claim
20 words
A set as in claim 14 including means for filling said disk-shaped collection container with the quantity of whole blood.
Claim 18
Dependent Claim
32 words
A set as in claim 14 wherein the centrifuge is a dual member centrifuge and with said proximal end of said fluid flow conduit essentially non-rotatable with respect to said distal end.
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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) | 1993-07-09 | 1994-01-08 | 1994-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-07-09 | 1998-01-08 | 1998-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-07-09 | 2002-01-08 | 2002-07-10 | $7700.00 | Window Closed / Lapsed |