EP0160266A2
Expired / Lapsed
EP
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Liposome composition
Assignee: Terumo Corp
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Filing: 1985-04-23
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Granted: —
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Expires: 2005-04-23
Abstract
Abstract A liposome composition comprising a crosslinked material having a three-dimensional network structure, and a liposome physically entrapped within the network structure and enclosing a material to be administered into a living body.
Inventors
- 👤 Juuro Aoyagi
- 👤 Yuichi Yamamoto
- 👤 Toshihiro Akaike
- 👤 Yasuhiro Nozaki
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 07:48
CPC Classifications
A; A61; A61K; A61K9/00; A61K9/10; A61K9/127
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
33 words
A liposome composition comprising a cross- linked material having a three-dimensional network structure; and a liposome physically entrapped within the network structure and enclosing a material to be administered into a living body.
Claim 2
Dependent Claim
33 words
A liposome composition comprising a cross- linked material having a three-dimensional network structure; and a liposome physically entrapped within the network structure and enclosing a material to be administered into a living body.
Claim 3
Dependent Claim
17 words
A liposome composition according to claim 1, characterized in that said crosslinked material has a hydrophilic group.
Claim 4
Dependent Claim
43 words
A liposome composition according to claim 2, characterized in that said crosslinked material is selected from the group consisting of polyacrylamide, poly(2-hydroxyethylmethacrylate), polymethacrylic acid, poly(N, N-dimethylaminoethylmethacrylate), polyethylene oxide, polyvinyl alcohol, gelatin, polyvinylpyrrolidone, polyssacharides, sodium alginate, collagen fibrin, silicone, collodion and a derivative thereof.
Claim 5
Dependent Claim
19 words
A liposome composition according to claim 1, characterized in that said crosslinked material is crosslinked by irradiation with y-rays.
Claim 6
Dependent Claim
21 words
A liposome composition according to claim 1, characterized in that the liposome is formed of a film material mainly containing phospholipids.
Claim 7
Dependent Claim
18 words
A liposome composition according to claim 5, characterized in that said film material contains a higher fatty acid.
Claim 8
Dependent Claim
15 words
A liposome composition according to claim 5, characterized in that said film material contains sterols.
Claim 9
Dependent Claim
22 words
A liposome composition according to claim 1, characterized in that said material to be administered into a living body is a medicine.
Claim 10
Dependent Claim
25 words
A liposome composition according to claim 1, characterized in that said material to be administered into a living body is a plasmid, DNA or RNA.
Claim 11
Dependent Claim
22 words
A liposome composition according to claim 1, characterized in that the liposome has a particle size of 0.03 µm to 2.0 µm.
Claim 12
Dependent Claim
16 words
A liposome composition according to claim 1, characterized in that said crosslinked material is pharmaceutically acceptable.
Claim 13
Dependent Claim
26 words
A liposome composition according to claim 1, characterized in that said material to be administered into the living body is present in a medicinany effective amount.
Claim 14
Dependent Claim
37 words
A liposome composition according to claim 1, characterized in that said liposome is held between each lattice which is the minimum unit constituting said network structure, and said liposome has a particle size larger than the lattice.
Claim 15
Dependent Claim
17 words
A liposome composition according to claim 1, characterized in that said crosslinked material is high molecular material.
References Cited (Backward Citations)
No citation records indexed.
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