US4460365A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyurethane bag for blood
Assignee: NPBI NEDERLANDS PRODUKTIELABORATORIUM VOOR BLOEDTRANSFUSIEAPPARATUUR EN INFUSIEVLOEISTOFFEN BV A DUTCH Corp
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Filing: 1979-10-01
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Granted: 1984-07-17
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Expires: 1999-10-01
Abstract
Abstract A bag suitable for the storage, deep-freezing and transfusion of blood and blood components formed of a calendered or extruded foil of plasticizer-free polyurethane of a thickness of about 0.1-0.5 mm, a Shore hardness A of about 60-85, temperature resistance up to about 160° C. and down to about -196° C. without change of properties. The bag can be used in combination with fittings and tubings of the same material to provide an overall plasticizer-free polyurethane system. The bag can be sterilized, is capable of low temperature storage, and exhibits other desirable properties without affecting the quality of its contents.
Inventors
- 👤 Karlheinz Ganshirt
- 👤 Wolfram H. Walker
- 👤 Hans Schleussner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:36
CPC Classifications
A; A61; A61J; A61J1/00; A61J1/05; A61J1/10; Y; Y10; Y10S; Y10S128/00; Y10S128/24
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
59 words
A bag suitable for the storage, deep-freezing and transfusion of blood and blood components and infusion solutions formed of a calendered or extruded foil of plasticizer free polyurethane of a thickness of about 0.1-0.5 mm, a Shore hardness A of about 60-85, temperature resistance up to about 160° C. and down to about -196° C. without change of properties.
Claim 2
Dependent Claim
59 words
A bag suitable for the storage, deep-freezing and transfusion of blood and blood components and infusion solutions formed of a calendered or extruded foil of plasticizer free polyurethane of a thickness of about 0.1-0.5 mm, a Shore hardness A of about 60-85, temperature resistance up to about 160° C. and down to about -196° C. without change of properties.
Claim 3
Dependent Claim
30 words
A blood-receiving-and-dispensing-system comprising a bag according to claim 1 in combination with injection-molded fittings and tubings communicating with the bag and satellite bags said fittings and tubings comprising plasticizer-free polyurethane.
Claim 4
Dependent Claim
12 words
A bag according to claim 1 containing blood or a blood component.
Claim 5
Dependent Claim
62 words
In the conservation of blood or a blood component wherein blood or a blood component is placed in a container, stored at a temperature below -25° C., brought back to room temperature and administered, the improvement which comprises employing as the container a bag according to claim 1, whereby the same container can be sterilized and stored as the cold-temperature storage container.
References Cited (Backward Citations)
US3942529A
Cited
US3695507A
Cited
US3788374A
Cited
US3946780A
Cited
DE2330101A1
Cited
US3940802A
Cited
US4010783A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-07-17 | 1988-01-16 | 1988-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-07-17 | 1992-01-16 | 1992-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-07-17 | 1996-01-16 | 1996-07-17 | $7700.00 | Window Closed / Lapsed |