Patent US4975186A successfully refreshed from Google Patents.
US4975186A
Expired / Lapsed
US
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Container for fine separation of blood and blood components
Assignee: Bayer Corp
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Filing: 1985-11-29
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Granted: 1990-12-04
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Expires: 2005-11-29
Abstract
Abstract Blood and blood component container having in continuous communication therewith a receptacle adapted to receive and define a given component or sub-component when contents in the container are separated. In preferred embodiments, the container is a flexible bag having a tapered portion adjacent the receptacle to assist migration of a given component or sub-component into the receptacle during centrifugation and at least a portion of the container is supported by a cup-like device, the inner surface of which conforms to the outer surface of the bag and communicating receptacle.
Inventors
- 👤 Shohachi Wada
- 👤 Bruce Kuhlemann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:41
CPC Classifications
A; A61; A61J; A61J1/00; A61J1/05; A61J1/10
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
114 words
A platelet pooling bag having in continuous communication therewith a receptacle adapted to receive and define a given volume of white blood cells when a mixture of platelets and white blood cells in the bag are separated, the receptacle having two end portions, an open receiving end in continuous communication with the container and an opposite closed end adapted to assist in containing the white blood cells, the volume of the receptacle comprising about 0.75% of the total volume of the bag, the bag including receptacle support means adapted to conform generally to the external dimensions of the bag and receptacle and help maintain said dimensions when the bag is subjected to centrifugal forces.
Claim 2
Dependent Claim
114 words
A platelet pooling bag having in continuous communication therewith a receptacle adapted to receive and define a given volume of white blood cells when a mixture of platelets and white blood cells in the bag are separated, the receptacle having two end portions, an open receiving end in continuous communication with the container and an opposite closed end adapted to assist in containing the white blood cells, the volume of the receptacle comprising about 0.75% of the total volume of the bag, the bag including receptacle support means adapted to conform generally to the external dimensions of the bag and receptacle and help maintain said dimensions when the bag is subjected to centrifugal forces.
Claim 3
Dependent Claim
22 words
The bag of claim 1 wherein the support means is adapted to receive a component withdrawal means in communication with the receptacle.
References Cited (Backward Citations)
US3911918A
Cited
US4857190A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-12-03 | 1994-06-04 | 1994-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-12-03 | 1998-06-04 | 1998-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-12-03 | 2002-06-04 | 2002-12-04 | $7700.00 | Window Closed / Lapsed |