US3847738A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blood collection and preservation unit
Assignee: Kendall Mcgraw Laboratories Inc
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Filing: 1971-11-01
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Granted: 1974-11-12
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Expires: 1991-11-01
Abstract
Abstract Blood collection and preservation units comprising containers with anticoagulant solutions therein are improved by incorporating dihydroxyacetone (DHA) in the anti-coagulant solutions, either alone or in combination with one or more other additives, such as adenine, inosine, and sodium pyruvate. The quality of fresh blood stored in the improved units is significantly better, and the quality can be maintained for longer storage times.
Inventors
- 👤 J Brake
- 👤 F Deindoerfer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:29
CPC Classifications
A; A01; A01N; A01N1/00; A01N1/10; A01N1/12; A01N1/122; A01N1/126
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
73 words
A BLOOD COLLECTION AND STORAGE UNIT, INCLUDING CONTAINER MEANS HAVING A STORAGE VOLUME FOR RECEIVING AND STORING A CORRESPONDING VOLUME OF BLOOD, AND AQUEOUS PRESERVATIVE SOLUTION MEANS ADMIXABLE WITH BLOOD STORED IN SAID CONTAINER MEANS, WHEREIN THE IMPROVEMENT COMPRISES HAVING PRESENT IN SAID PRESERVATIVE SOLUTION MEANS FOR ADMIXTURE WITH THE STORED BLOOD AN AMOUNT OF DIHYDROXYACETONE (DHA) EQUAL TO 5 TO 100 MILLIMOLES (MM) OF DHA PER LITER OF SAID CONTAINER STORAGE VOLUME
Claim 2
Dependent Claim
73 words
A BLOOD COLLECTION AND STORAGE UNIT, INCLUDING CONTAINER MEANS HAVING A STORAGE VOLUME FOR RECEIVING AND STORING A CORRESPONDING VOLUME OF BLOOD, AND AQUEOUS PRESERVATIVE SOLUTION MEANS ADMIXABLE WITH BLOOD STORED IN SAID CONTAINER MEANS, WHEREIN THE IMPROVEMENT COMPRISES HAVING PRESENT IN SAID PRESERVATIVE SOLUTION MEANS FOR ADMIXTURE WITH THE STORED BLOOD AN AMOUNT OF DIHYDROXYACETONE (DHA) EQUAL TO 5 TO 100 MILLIMOLES (MM) OF DHA PER LITER OF SAID CONTAINER STORAGE VOLUME
Claim 3
Dependent Claim
33 words
The improved blood collection and storage unit of claim 1 wherein said DHA is present in an amount of from 10 to 30 mM of DHA per liter of said container storage volUme.
Claim 4
Dependent Claim
60 words
A blood collection and storage unit, including a container having a storage volume for receiving and storing 0.5 liters of blood, and an aqueous sterile preservative solution admixable with the blood stored in said container, wherein the improvement comprises having present in said preservative solution for admixture with the stored blood from 2.5 to 50 millimoles (mM) of dihydroxyacetone (DHA).
Claim 5
Dependent Claim
60 words
A blood collection and storage unit, including a container having a storage volume for receiving and storing 0.5 liters of blood, and an aqueous sterile preservative solution admixable with the blood stored in said container, wherein the improvement comprises having present in said preservative solution for admixture with the stored blood from 2.5 to 50 millimoles (mM) of dihydroxyacetone (DHA).
Claim 6
Dependent Claim
23 words
The improved blood collection and storage unit of claim 3 wherein said DHA present in an amount of from 5 to 15 mM.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-11-11 | 1978-05-13 | 1978-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-11 | 1982-05-13 | 1982-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-11 | 1986-05-13 | 1986-11-12 | $7700.00 | Window Closed / Lapsed |