EP0326426B1
Expired / Lapsed
EP
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Plastic molded articles with shape memory property
Assignee: JMS Co Ltd
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Filing: 1989-01-27
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Granted: 1994-12-21
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Expires: 2009-01-27
Abstract
No abstract record available.
Inventors
- 👤 Tatsuya Kawai
- 👤 Takashi Matsuda
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 14:31
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/82; A61F2/92; A61B; A61B17/00; A61B17/02; A61B17/064; A61B17/0644; A61B17/08; A61B17/12; A61B17/122; A61B17/1227; A61F2/94; A61L; A61L31/00; A61L31/04; A61L31/06; A61L31/14; A61M; A61M31/00; A61M31/002; B; B29; B29C; B29C61/00; B29C61/003; C; C08; C08L; C08L67/00; C08L67/04; A61F2/02; A61F2/30; A61F2002/30001; A61F2002/30003; A61F2002/3006; A61F2002/30062; A61F2002/30092; A61F2210/00; A61F2210/0004; A61F2210/0014; A61F2210/0019; A61L2400/00; A61L2400/16; Y; Y10; Y10S; Y10S264/00; Y10S264/40; Y10S264/41
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
35 words
A molded article which is returnable to a previously memorized shape, comprising one or more polymers selected from lactide homopolymers, glycolide homopolymers and copolymers of lactide and glycolide, said polymers having a shape memory property.
Claim 2
Dependent Claim
26 words
A molded article according to claim 1, wherein said polymers are copolymers containing 10 - 90 mol % lactide and 90 - 10 mol % glycolide.
Claim 3
Dependent Claim
26 words
A molded article according to claim 1 wherein said polymers are copolymers containing 20 - 80 mol % lactide and 80 - 20 mole % glycolide.
Claim 4
Dependent Claim
22 words
A molded article according to any one of claims 1, 2 or 3 wherein the article is a clip for tissue suturing.
Claim 5
Dependent Claim
24 words
A molded article according to any one of claims 1, 2 or 3, wherein the article is a device for preventing blood vessel obstruction.
Claim 6
Dependent Claim
25 words
A molded article according to any one of claims 1, 2 or 3 wherein the article is a device for expanding a restricted blood vessel.
Claim 7
Dependent Claim
27 words
A molded article according to any one of claims 1, 2 or 3 wherein the article is an actuator for releasing a drug from a medical capsule.
Claim 8
Dependent Claim
23 words
A molded article according to any one of claims 1, 2 or 3 wherein the article is a clip for a cerebral aneurysm.
Claim 9
Dependent Claim
28 words
A molded article according to any one of claims 1, 2 or 3, wherein the article comprises rings for attachment to the ends of an artificial blood vessel.
Claim 10
Dependent Claim
20 words
A molded article according to any one of claims 1, 2 or 3, wherein the article is a hemostatic clip.
Claim 11
Dependent Claim
57 words
A process for preparing a molded article according to claim 1, comprising the steps of: molding a polymer selected from lactide homopolymers, glycolide homopolymers and copolymers of lactide and glycolide into an article of a desired shape; deforming the molded article into another shape by heat-softening; and cooling the deformed article to cause the article to harden.
Claim 12
Dependent Claim
81 words
A process for preparing a molded article according to claim 1, comprising the steps of: molding a polymer selected from lactide homopolymers, glycolide homopolymers and copolymers of lactide and glycolide into an article of a desired shape; heating the article in the desired shape for a prescribed period of time; cooling the article; deforming the molded article into another shape by heat-softening at a temperature lower than said first heating; and cooling the deformed article to cause the article to harden.
Claim 13
Dependent Claim
22 words
Use of a lactide homopolymer, glycolide homopolymer or copolymer of lactide and glycolide for the manufacture of an article having shape-memory properties.
Claim 14
Dependent Claim
25 words
Use of an article according to any one of claims 1 to 10 in a process wherein the article returns to a previously memorized shape.
References Cited (Backward Citations)
No citation records indexed.
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