Patent EP0404683A2 successfully refreshed from Google Patents.
EP0404683A2
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EP
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Medical material, process for its production, and medical device using the medical material
Assignee: Asahi Kasei Medical Co Ltd
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Filing: 1990-06-21
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Granted: —
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Expires: 2010-06-21
Abstract
Abstract The invention provides a medical material in which biocompatibility is provided to a substrate stably for over an extended period of time because of the ability of the material to reduce or prevent undesirable physiological properties inherent in the substrate, such as blood clotting, activation of complement system, platelet adhesion and the like. Such abilities are effected by the bonding of a fatty acid and/or its derivative to the substrate through a polymer.
Inventors
- 👤 Nobuyoshi Kashiwagi
- 👤 Masatomi C/O Terumo Kabushiki Kaisha Sasaki
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 17:29
CPC Classifications
A; A61; A61L; A61L33/00; A61L33/0005; A61L33/0011; A61L33/0029; A61L33/0076; A61L33/0082
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
18 words
A medical material comprising a substrate and a fatty acid and/or its derivative immobilized thereon through a polymer.
Claim 2
Dependent Claim
18 words
A medical material comprising a substrate and a fatty acid and/or its derivative immobilized thereon through a polymer.
Claim 3
Dependent Claim
27 words
The medical material according to claim 1 wherein said polymer is bonded to said substrate and said fatty acid and/or its derivative is bonded to said polymer.
Claim 4
Dependent Claim
18 words
The medical material according to claim 1 wherein said polymer has a molecular weight of 500 to 500,000.
Claim 5
Dependent Claim
24 words
The medical material according to claim 1 wherein said fatty acid derivative comprises a reaction product of a fatty acid and a hydrophilic polymer.
Claim 6
Dependent Claim
33 words
The medical material according to claim 1 wherein said substrate is a high polymer having at least one functional group selected from the class consisting of hydroxyl group, amino group and carboxylic group.
Claim 7
Dependent Claim
13 words
The medical material according to claim 1 wherein said polymer comprises (meth)acrylic acid.
Claim 8
Dependent Claim
14 words
7 The medical material according to claim 1 wherein said polymer comprises glycidyl (meth)acrylate.
Claim 9
Dependent Claim
16 words
The medical material according to claim 1 wherein said polymer comprises glycidyl (meth)acrylate and (meth)acrylic acid.
Claim 10
Dependent Claim
13 words
The medical material according to claim 1 wherein said polymer comprises alkyl (meth)acrylate.
Claim 11
Dependent Claim
24 words
The medical material according to claim 1 wherein said fatty acid derivative comprises a reaction product of a fatty acid and alkylene glycol diamine.
Claim 12
Dependent Claim
14 words
The medical material according to claim 1 wherein said fatty acid is linoleic acid.
Claim 13
Dependent Claim
15 words
The medical material according to claim 1 wherein said substrate is cellulose or its derivative.
Claim 14
Dependent Claim
47 words
A process for producing a medical material comprising the steps of bonding a functional group of a fatty acid and/or its derivative with a functional group of a polymerizable component, and bonding a functional group of said polymeri zable component with a functional group of a substrate.
Claim 15
Dependent Claim
47 words
A process for producing a medical material comprising the steps of bonding a functional group of a fatty acid and/or its derivative with a functional group of a polymerizable component, and bonding a functional group of said polymeri zable component with a functional group of a substrate.
Claim 16
Dependent Claim
17 words
The process according to claim 13 wherein said functional group of the polymerizable component is epoxy group.
Claim 17
Dependent Claim
20 words
The process according to claim 13 wherein said functional group of the polymerizable component includes epoxy group and carboxylic group.
Claim 18
Dependent Claim
18 words
The process according to claim 13 wherein said functional group of the fatty acid derivative is amino group.
Claim 19
Dependent Claim
25 words
A medical device used under contact with blood wherein part of the device in contact with the blood comprises the medical material of claim 1.
References Cited (Backward Citations)
No citation records indexed.
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