EP0054221A1
Expired / Lapsed
EP
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Multiple blood bag system made of plastic substantially free of blood extractible plasticizers
Assignee: Bayer Corp
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Filing: 1981-12-02
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Granted: —
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Expires: 2001-12-02
Abstract
Abstract An improved multiple blood bag system is disclosed in which donor as well as transfer bags are made of polymeric substances which are substantially free of blood-extractable plasticizers. The polymeric substance for a donor bag can be the same or different from that of a transfer bag. The polymeric substances are selected so that when whole blood or packed red cells are stored in a donor bag of such material for up to 21 days, the degree of hemolysis is such that the amount of surviving red cells is sufficient for clinical requirements. The polymeric substances also are favourable in the functions for which transfer bags are used such as platelet storage, cryoprecipitate collection and the like.
Inventors
- 👤 Raleigh A. Carmen
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-04 13:38
CPC Classifications
A; A61; A61L; A61L31/00; A61L31/14; A61L31/143; A61J; A61J1/00; A61J1/14; A61J1/1475; A61J1/1487; A61L31/04; A61L31/048; A61L31/06; A61L31/141; A61J1/05; A61J1/10; A61J1/1468
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
68 words
A multiple blood bag system comprising a first bag, a second bag, and a flexible conduit joining the first and second bags for fluid flow communication therebetween, the first and second bags being made of a flexible, translucent, heat-sterilizable, heat-sealable polymeric substance, characterized in that the polymeric substance is substantially free of blood extractable plasticizers and exhibits a carbon dioxide transmissibility of at least 3000 ml/m 2 /day.
Claim 2
Dependent Claim
68 words
A multiple blood bag system comprising a first bag, a second bag, and a flexible conduit joining the first and second bags for fluid flow communication therebetween, the first and second bags being made of a flexible, translucent, heat-sterilizable, heat-sealable polymeric substance, characterized in that the polymeric substance is substantially free of blood extractable plasticizers and exhibits a carbon dioxide transmissibility of at least 3000 ml/m 2 /day.
Claim 3
Dependent Claim
21 words
The multiple blood bag system of claim 1 wherein the first and second bags are made of the same polymeric substance.
Claim 4
Dependent Claim
20 words
The multiple blood bag system of claim 2 wherein the polymeric substance is a polyvinyl chloride plasticized with tri-2-ethylhexyl trimellitate.
Claim 5
Dependent Claim
17 words
4 . The multiple blood bag system of claim 2 wherein the polymeric substance is a polyurethane.
Claim 6
Dependent Claim
15 words
The multiple blood bag system of claim 2 wherein the polymeric substance is a polyester.
Claim 7
Dependent Claim
19 words
The multiple blood bag system of claim 5 wherein the polyester comprises a polymer of 1,4-cyclohexanedimethanol and 1,4-cyclohexanedicarboxylic acid.
Claim 8
Dependent Claim
15 words
The multiple blood bag system of claim 2 wherein the polymeric substance is a polycarbonate.
Claim 9
Dependent Claim
25 words
The multiple blood bag system of claim 1 wherein the polymeric substance of the first bag differs from the polymeric substance of the second bag.
Claim 10
Dependent Claim
23 words
The multiple blood bag system of claim 3 wherein the amount of tri-2-ethylhexyl trimellitate is about 30 to about 50 percent by weight.
Claim 11
Dependent Claim
34 words
The multiple blood bag system of claim 3 wherein the plasticized polyvinyl chloride formulation includes about 3.5 percent of epoxidized soybean oil and about 0.6 percent of calcium or zinc stearate or combinations thereof.
References Cited (Backward Citations)
US4045431A
Cited
NL7707581A
Cited
GB1587522A
Cited
FR2439589A1
Cited
US4222379A
Cited
US4222379B1
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GB2044220A
Cited
EP0019264A2
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EP0026912A2
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US4280497A
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