US4082509A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of storing blood and a blood storage bag therefor
Assignee: Dow Silicones Corp
•
Filing: 1976-08-05
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Granted: 1978-04-04
•
Expires: 1996-08-05
Abstract
Abstract A method of storing blood in which a plastic blood collection bag is further supplied with silicone rubber into which pure Ca(OH) 2 has been compounded to prolong the useful life of blood, especially the erythrocytes, since their viability can be enhanced by removal of CO 2 from the blood. Such removal can maintain adequate pH balance in the complex blood system which appears to be essential to maintaining the blood in storage for prolonged periods of time.
Inventors
- 👤 Thomas D. Talcott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:30
CPC Classifications
A; A61; A61K; A61K35/00; A61K35/12; A61K35/14; A01; A01N; A01N1/00; A01N1/10; A01N1/12; A01N1/122; A01N1/14; A01N1/146; A61L; A61L33/00; A61L33/06; A61L33/068; A61J; A61J1/00; A61J1/05; A61J1/10
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
52 words
A method of storing blood which comprises compounding a curable silicone rubber with Ca(OH) 2 which is to preserve and extend the storage life of whole blood; inserting the compounded silicone rubber into a blood storage bag; subsequently infusing the bag with whole blood, whereupon there is obtained a storage stable blood.
Claim 2
Independent Claim
52 words
A method of storing blood which comprises compounding a curable silicone rubber with Ca(OH) 2 which is to preserve and extend the storage life of whole blood; inserting the compounded silicone rubber into a blood storage bag; subsequently infusing the bag with whole blood, whereupon there is obtained a storage stable blood.
Claim 3
Independent Claim
57 words
A method of storing blood which comprises compounding a curable silicone rubber with Ca(OH) 2 which is to preserve and extend the storage life of whole blood; inserting the compounded silicone rubber into a blood storage bag containing an artificial blood storage media; subsequently infusing the bag with blood, whereupon there is obtained a storage stable blood.
Claim 4
Independent Claim
57 words
A method of storing blood which comprises compounding a curable silicone rubber with Ca(OH) 2 which is to preserve and extend the storage life of whole blood; inserting the compounded silicone rubber into a blood storage bag containing an artificial blood storage media; subsequently infusing the bag with blood, whereupon there is obtained a storage stable blood.
Claim 5
Dependent Claim
29 words
A method of storing blood as claimed in claim 1 wherein the silicone rubber is present in a ratio of 100 parts to 5-30 parts of Ca(OH) 2 .
References Cited (Backward Citations)
USRE25129E
Cited
GB459951A
Cited
US2301710A
Cited
GB901675A
Cited
US3291612A
Cited
US3418209A
Cited
US3942529A
Cited
US3579999A
Cited
US3677022A
Cited
US3729947A
Cited
US3925153A
Cited
US3874384A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-04-03 | 1981-10-03 | 1982-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-04-03 | 1985-10-03 | 1986-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-04-03 | 1989-10-03 | 1990-04-04 | $7700.00 | Window Closed / Lapsed |