EP0199356A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Stopper for medical container
Assignee: Terumo Corp
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Filing: 1986-04-24
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Granted: —
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Expires: 2006-04-24
Abstract
Abstract A stopper for a medical container which can tightly close an opening in said medical container and can be pierced with a syringe, which stopper is characterized by the fact that at least part of the portion thereof which possibly comes into contact with a piercing needle during the removal of said piercing needle therefrom is formed of a material containing a highly water absorbable macromolecular compound.
Inventors
- 👤 Masaaki Kasai
- 👤 Kenji Ishikawa
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-24 23:14
CPC Classifications
B; B01; B01L; B01L3/00; B01L3/50; B01L3/508; B01L3/5082; B01L3/50825; A; A61; A61B; A61B5/00; A61B5/15; A61B5/150007; A61B5/150015; A61B5/15003; A61B5/150351; A61B5/150374; A61B5/150381; A61B5/150473; A61B5/150496; A61B5/153; A61B5/154; A61B5/150389; A61B5/150534; A61B5/150572; A61B5/150732
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
67 words
A stopper for a medical container which can tightly close an opening in said medical container and can be pierced with a needle, which stopper is characterized by the fact that at least part of the portion thereof which possibly comes into contact with a piercing needle during the removal of said piercing needle therefrom is formed of a material containing a highly water absorbable macromolecular compound.
Claim 2
Dependent Claim
67 words
A stopper for a medical container which can tightly close an opening in said medical container and can be pierced with a needle, which stopper is characterized by the fact that at least part of the portion thereof which possibly comes into contact with a piercing needle during the removal of said piercing needle therefrom is formed of a material containing a highly water absorbable macromolecular compound.
Claim 3
Dependent Claim
31 words
A stopper according to Claim 1, wherein said portion formed of said material containing a highly water absorbable macromolecular compound is not exposed on the inner side of said medical container.
Claim 4
Dependent Claim
41 words
A stopper according to Claim 1, wherein said material containing a highly water absorbable macromolecular compound is a synthetic resin type or natural or synthetic rubber type compound containing 2 to 30% by weight of said highly water absorbable macromolecular compound.
Claim 5
Dependent Claim
29 words
A stopper according to Claim 3, wherein said highly water absorbable macromolecular compound can be swelled by absorbing water in an amount 50 to 10,000 times its own weight.
Claim 6
Dependent Claim
21 words
A stopper according to Claim 4, wherein said highly water absorbable macromolecular compound is of a polyacrylamide type or polyacrylate type.
Claim 7
Dependent Claim
20 words
A stopper according to Claim 1, which has an outside diameter smaller than the outside diameter of said medical container.
Claim 8
Dependent Claim
102 words
An evacuated blood collecting device comprising a cylindrical body having one end thereof closed and the other end opened and a punctual stopper member by a piercing needle serving to close tightly the open end of the cylindrical body, wherein a space formed by said cylindrical body and said stopper member is maintained under reduced pressure, which said sevice is characterized in that at least part of a portion of said stopper member which possibly comes into contact with said piercing needle during the removal of said piercing needle therefrom is formed of a material containing a highly water absorbable mocromolecular compound.
Claim 9
Dependent Claim
102 words
An evacuated blood collecting device comprising a cylindrical body having one end thereof closed and the other end opened and a punctual stopper member by a piercing needle serving to close tightly the open end of the cylindrical body, wherein a space formed by said cylindrical body and said stopper member is maintained under reduced pressure, which said sevice is characterized in that at least part of a portion of said stopper member which possibly comes into contact with said piercing needle during the removal of said piercing needle therefrom is formed of a material containing a highly water absorbable mocromolecular compound.
References Cited (Backward Citations)
No citation records indexed.
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