US4162676A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blood bag having co2 absorbent therein
Assignee: Dow Silicones Corp
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Filing: 1977-08-04
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Granted: 1979-07-31
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Expires: 1997-08-04
Abstract
Abstract A method of storing blood is disclosed in which a plastic blood collection bag is further supplied with silicone rubber into which pure Ca(OH) 2 has been compounded. The method is an efficient way 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 be a method of maintaining an 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
2026-11-01 16:46
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
34 words
A blood storage system which comprises a blood storage container having attached thereto conventional infusion and transfusion apparatus and which contains, in said container, a cured silicone rubber which has Ca(OH) 2 compounded therein.
Claim 2
Dependent Claim
34 words
A blood storage system which comprises a blood storage container having attached thereto conventional infusion and transfusion apparatus and which contains, in said container, a cured silicone rubber which has Ca(OH) 2 compounded therein.
Claim 3
Dependent Claim
42 words
A blood storage system which comprises a blood storage container having attached thereto conventional infusion and transfusion apparatus and, an artificial blood storage media contained in the storage contained in heterogenous admixture with cured silicone rubber which contains Ca(OH) 2 compounded therein.
Claim 4
Dependent Claim
42 words
A blood storage system which comprises a blood storage container having attached thereto conventional infusion and transfusion apparatus and, an artificial blood storage media contained in the storage contained in heterogenous admixture with cured silicone rubber which contains Ca(OH) 2 compounded therein.
Claim 5
Dependent Claim
21 words
A blood storage bag as claimed in claim 2 wherein the container is fabricated either from glass or a thermoplastic polymer.
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) | 1982-07-30 | 1983-01-29 | 1983-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-07-30 | 1987-01-29 | 1987-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-07-30 | 1991-01-29 | 1991-07-31 | $7700.00 | Window Closed / Lapsed |