US4516977A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Storage bag
Assignee: Fresenius SE and Co KGaA
•
Filing: 1984-02-16
•
Granted: 1985-05-14
•
Expires: 2004-02-16
Abstract
Abstract The invention relates to a storage bag, in particular for medical purposes for storing blood or infusion solutions, comprising a thermoplastic polymer material and having at least one outlet comprising a tube member.
Inventors
- 👤 Reinhold Herbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:29
CPC Classifications
A; A61; A61J; A61J1/00; A61J1/05; A61J1/10; B; B32; B32B; B32B27/00; B32B27/06; B32B27/08; B32B27/32; B32B7/00; B32B7/04; B32B7/12; B32B2439/00; B32B2439/80; Y; Y10; Y10S; Y10S128/00; Y10S128/24
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
83 words
A medical bag for containing liquids comprising a flexible bag body of plasticizer free thermoplastic polymeric material durable to autoclave sterilization to at least 120° C., at least one substantially dimensionally stable tubular polymeric port member inserted into said bag body, wherein the polymer of said port member is different from the polymeric bag material, a bonding layer between said port member and the portions of the bag body in contact therewith of uncross-linked copolymer of olefin and vinyl acetate or of polyurethane.
Claim 2
Dependent Claim
83 words
A medical bag for containing liquids comprising a flexible bag body of plasticizer free thermoplastic polymeric material durable to autoclave sterilization to at least 120° C., at least one substantially dimensionally stable tubular polymeric port member inserted into said bag body, wherein the polymer of said port member is different from the polymeric bag material, a bonding layer between said port member and the portions of the bag body in contact therewith of uncross-linked copolymer of olefin and vinyl acetate or of polyurethane.
Claim 3
Dependent Claim
38 words
Bag according to claim 1, characterized in that the tube member or insert (20, 22, 50, 72, 104) consists of hard PVC, polypropylene, polyamide, polycarbonate, polyester, polyacrylate, latex, a copolymer thereof or a copolymer thereof containing a styrene.
Claim 4
Dependent Claim
14 words
Bag according to claim 1, characterized in that the olefin is ethylene or propylene.
Claim 5
Dependent Claim
19 words
Bag according to claim 1 characterized in that the copolymer has a vinyl acetate content of 5-70% by weight.
Claim 6
Dependent Claim
19 words
Bag according to claim 4, characterized in that the copolymer has a vinyl acetate content of 10-50% by weight.
Claim 7
Dependent Claim
19 words
Bag according to claim 5, characterized in that the copolymer has a vinyl acetate content of 15-40% by weight.
Claim 8
Dependent Claim
34 words
Bag according to claim 1 characterized in that the polymeric material of the bag comprises polyethylene, polypropylene, poly-n-butylene, polyisobutylene, poly-4-methylpentene-1, chlorosulfonated polyethylene, polystyrene, halogenated polyethylenes or polymethyl methacrylate or their copolymers or mixed polymers.
Claim 9
Dependent Claim
22 words
Bag according to claim 7, characterized in that the polyethylene has a density of 0.9-0.94 and a melting range above 116° C.
Claim 10
Dependent Claim
31 words
Bag according to claim 7 characterized in that the polyethylene is in the form of a sheet and is laminated with a film of polyamide, polyvinylidene chloride, polyethylene terephthalate or polyester.
Claim 11
Dependent Claim
41 words
Bag according to claim 9, characterized in that the laminate consisting of polyethylene sheet and laminating sheet is up to 0.2 mm thick, the polyethylene sheet having a thickness of 50-100 μm and the laminating sheet a thickness of 20-100 μm.
Claim 12
Dependent Claim
49 words
Bag according to claim 1 characterized in that the bonding layer (19,53) is applied over the tube member (20,22) or the insert (50,72) and the copolymer of the bonding layer (19,53) is fused with the polyolefin of the bag (10) and the tube member (20,22) or the insert (50,72).
Claim 13
Dependent Claim
49 words
Bag according to claim 1 characterized in that the tube members (20,22) or the inlet or exit openings (76,78) provided in the insert (50,72) comprise infusion stoppers (77) or syringe injection stoppers (79) which are provided with a diaphragm (24) and a cap (25) or a pierceable insert (27).
Claim 14
Dependent Claim
19 words
Bag according to claim 1 characterized in that the tube member (20,22) or the inserts (50,72) comprise extensions (38,60,62,84).
Claim 15
Dependent Claim
26 words
Bag according to claim 13, characterized in that the extensions (38,60,62,84), the tube members (20,22) or the openings (76,78) are sealed with a pierceable diaphragm (24,42,64,80,94).
Claim 16
Dependent Claim
31 words
Bag according to claim 1 characterized in that on the bag (10) a filling opening (48) closable by welding is provided or in the insert (50,72) a closable filling opening (58,82).
Claim 17
Dependent Claim
23 words
Bag according to claim 14, characterized in that the diaphragm (42,64,80,94) is adjoined by a constriction or bead (44,66,96) of the opening (40).
Claim 18
Dependent Claim
27 words
Bag according to claim 1 characterized in that the extensions (38,60,62,84), the tube members (20,22) or the inserts (50,72) are provided with a removable closure member (40,70).
Claim 19
Dependent Claim
35 words
Bag according to claim 1 characterized in that the extensions (84) and the tube members (20,22) or the inserts (50,72) and the bonding layer (19,53) are welded round with one or more sheet regions (86).
Claim 20
Dependent Claim
46 words
Bag according to claim 1 characterized in that the bonding layer is made tubular and is connected at least partially along its outer periphery with the bag material and with regard to its inner surface is connected at least partially to the substantially dimensionally stable insert.
References Cited (Backward Citations)
US3940802A
Cited
US4439192A
Cited
US4453940A
Cited
US4326576A
Cited
US4441538A
Cited
US4362158A
Cited
US4393909A
Cited
US4412573A
Cited
US4412573B1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-05-13 | 1988-11-12 | 1989-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-05-13 | 1992-11-12 | 1993-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-05-13 | 1996-11-12 | 1997-05-14 | $7700.00 | Window Closed / Lapsed |