EP0480809A2
Expired / Lapsed
EP
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Medical device
Assignee: Terumo Corp
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Filing: 1991-10-04
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Granted: —
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Expires: 2011-10-04
Abstract
Abstract A medical device for insertion into a body, wherein a part of a substrate thereof destined to be inserted into the body is furnished with a coating of a polymer manifesting lubricity in a wetted state and a part of said substrate destined substantially not be inserted into the body is furnished with said polymer coating treated for divestiture of lubricity.
Inventors
- 👤 Hiraku c/o Terumo K. K. Murayama
- 👤 Naofumi c/o Terumo K. K. Okajima
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 01:41
CPC Classifications
A; A61; A61L; A61L29/00; A61L29/08; A61L29/085; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551; Y10T428/31573; Y10T428/31576; Y10T428/31725; Y10T428/31736; Y10T428/31786; Y10T428/31794; Y10T428/31797; Y10T428/31855; Y10T428/31909; Y10T428/31913; Y10T428/3192
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
61 words
A medical device for insertion into a body, wherein a part of a substrate thereof destined to be inserted into said body is furnished with a coating of a polymer manifesting lubricity in a wetted state and a part of said substrate destined substantially not be inserted into said body is furnished with said polymer coating treated for divestiture of lubricity.
Claim 2
Dependent Claim
21 words
A medical device according to claim 1, wherein said polymer coating is formed of a hydrophilic compound or a derivative thereof.
Claim 3
Dependent Claim
17 words
A medical device according to claim 2, wherein said hydrophilic compound is a maleic anhydride type polymer.
Claim 4
Dependent Claim
25 words
A medical device according to claim 3, wherein said maleic anhydride type polymer is a a partial alkyl ester of a methylvinyl ether-maleic anhydride copolymer.
Claim 5
Dependent Claim
23 words
A medical device according to claim 1, wherein said treatment for divestiture of lubricity comprises treating said polymer coating with an isocyanate compound.
Claim 6
Dependent Claim
21 words
A medical device according to claim 5, wherein said polymer coating is formed of a hydrophilic compound or a derivative thereof.
Claim 7
Dependent Claim
30 words
A medical device according to claim 1, wherein said polymer coating is deposited by virtue of covalent bond with a reactive functional group present on the surface of said substrate.
Claim 8
Dependent Claim
14 words
A medical device according to claim 1, wherein said substrate is an organic polymer.
Claim 9
Dependent Claim
29 words
A medical device according to claim 8, wherein said organic polymer is one member selected from the group consisting of polyvinyl chloride resin, polyurethane resin, polyamide latex, and polyesters.
References Cited (Backward Citations)
No citation records indexed.
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