US4600613A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Medical bag
Assignee: Terumo Corp
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Filing: 1984-03-30
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Granted: 1986-07-15
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Expires: 2004-03-30
Abstract
Abstract A medical bag comprising a pair of heat-sealable soft plastic sheets disposed opposing each other, said sheets having peripheral portions which are sealed together so as to form a bag main body; and substantially non-flowable, substantially continuous layers covering those portions of opposing surfaces of said sheets at least at portions of said opposing surfaces other than said peripheral portions, said substantially non-flowable layers comprising a silicone resin composition, said silicone resin composition being at least partially crosslinked.
Inventors
- 👤 Takao Yoshida
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:16
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/06; B32B27/08; A; A61; A61J; A61J1/00; A61J1/05; A61J1/10; B29; B29C; B29C65/00; B29C65/02; B29C65/04; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/341; B29C66/40; B29C66/41; B29C66/43; B29C66/50; B29C66/51; B29C66/53; B29C66/532; B29C66/5326; B29C66/53261; B29C66/53262; B29C66/70; B29C66/72; B29C66/723; B29C66/80; B29C66/81; B29C66/814; B29C66/8141; B29C66/81411; B29C66/81425; B29C66/81427; B29C66/83; B29C66/832; B29C66/8322; C; C08; C08L; C08L83/00; C08L83/04; C08L83/08; A61M; A61M2207/00; B29C66/71; B29C66/73; B29C66/739; B29C66/7392; B29C66/73921; B29L; B29L2009/00; B29L2031/00; B29L2031/60; B29L2031/601; B29L2031/602; B29L2031/712; B29L2031/7148; B32B2255/00; B32B2255/10; B32B2255/26; B32B2307/00; B32B2307/30; B32B2307/31; B32B2439/00; B32B2439/80; Y; Y10; Y10T; Y10T428/00; Y10T428/13; Y10T428/1334; Y10T428/31504; Y10T428/31652; Y10T428/31663
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
78 words
A medical bag comprising: a pair of heat-sealabe soft plastic sheets disposed opposing each other, said sheets having peripheral portions which are sealed together so as to form a bag main body; and substantially non-flowable, substantially continuous layers covering those portions of opposing surfaces of said sheets at least at portions of said opposing surfaces other than said peripheral portions, said substantially non-flowable layers comprising a silicone resin composition, said silicone resin composition being at least partially crosslinked.
Claim 2
Dependent Claim
78 words
A medical bag comprising: a pair of heat-sealabe soft plastic sheets disposed opposing each other, said sheets having peripheral portions which are sealed together so as to form a bag main body; and substantially non-flowable, substantially continuous layers covering those portions of opposing surfaces of said sheets at least at portions of said opposing surfaces other than said peripheral portions, said substantially non-flowable layers comprising a silicone resin composition, said silicone resin composition being at least partially crosslinked.
Claim 3
Dependent Claim
19 words
A medical bag according to claim 1, wherein said silicone resin composition contains dimethylsiloxane units as a main component.
Claim 4
Dependent Claim
15 words
A medical bag according to claim 2, wherein said substantially non-flowable layers have gel-like surfaces.
Claim 5
Dependent Claim
30 words
A medical bag according to claim 3, wherein the crosslinked portion of the silicon resin composition is present in said substantially non-flowable layers and on the surfaces of the sheets.
Claim 6
Dependent Claim
25 words
A medical bag according to claim 2, wherein the resin composition further contains aminoalkylsiloxane units which are at least partially crosslinked with the dimethylsiloxane units.
Claim 7
Dependent Claim
31 words
A medical bag according to claim 5, wherein the resin composition contains about 80 to 95% by weight of dimethylsiloxane units and about 20 to 15% by weight of aminoalkylsiloxane units.
Claim 8
Dependent Claim
18 words
A medical bag according to claim 5, wherein the aminoalkylsiloxane units are derived from an aminosilane coupling agent.
Claim 9
Dependent Claim
26 words
A medical bag according to claim 7, wherein the aminosilane coupling agent is a member selected from the group consisting of γ-(2-aminoethyl)aminopropyltrimethoxysilane, γ-(2-aminoethyl)aminopropylmethyldimethoxysilane, and mixtures thereof.
Claim 10
Dependent Claim
36 words
A medical bag according to claim 2, wherein said substantially non-flowable layers are formed in an amount of about 5×10 -4 to 1.5×10 -2 g/m 2 on the entire one surface of each of said sheets.
Claim 11
Dependent Claim
14 words
A medical bag according to claim 2, wherein said sheets have a blocking tendency.
Claim 12
Dependent Claim
16 words
A medical bag according to claim 10, wherein said sheets consist essentially of soft polyvinyl chloride.
Claim 13
Dependent Claim
38 words
A medical bag according to claim 2, wherein said substantially non-flowable layers form non-continuous portions at said heat-sealed peripheral portions of said sheets and said sheets are adhered together through said non-continuous portions of said substantially non-flowable layers.
References Cited (Backward Citations)
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-07-14 | 1990-01-13 | 1990-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-07-14 | 1994-01-13 | 1994-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-07-14 | 1998-01-13 | 1998-07-15 | $7700.00 | Window Closed / Lapsed |