EP0198962B1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Valve device for a medical instrument
Assignee: Terumo Corp
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Filing: 1985-12-27
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Granted: 1990-06-13
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Expires: 2005-12-27
Abstract
No abstract record available.
Inventors
- 👤 Tatsuo Suzuki
- 👤 Atsushi Matsumoto
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 17:12
CPC Classifications
A; A61; A61M; A61M39/00; A61M39/02; A61M39/06; A61M39/0606
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
297 words
A medical instrument comprising a main body (11), in which a path for receiving a bar-like member (15, 49) is formed and a valve (16, 17, 70, 80, 90, 100) mounted on said main body (11), closing said path and having two end faces in the path direction and a slit (18, 19, 21, 71, 72, 81, 82, 91, 92, 101) for receiving said bar-like member (15, 49) and maintaining at least a liquid-tight seal with said bar-like member (15, 49) being passed therethrough, and for closing said path at least in a liquid tight-state when said bar-like member (15, 49) is absent from said path, said valve (16, 17, 70, 80, 90, 100) being made of a flexible and elastic material and including a first disk-like valve (16,70,80,90) having a first slit (18, 71, 81, 91) open only to one end face of said first disk-like valve (16, 70, 80, 90) and a second slit (19, 72, 82, 92) open only to the other end face thereof, said first and-second slits (18,19,71,72,81,82,91, 92) extending only partly through said first disk-like valve (16, 70, 80, 90) and crossing each other inside said first disk-like valve (16, 70, 80, 90) to connect each other at their intersection, characterized by a second disk-like valve (17, 100) in parallel and contacting said one end face of said first disk-like valve (16, 70, 80, 90) and having a slit (21,101) extending through and being open to both end faces of said second disk-like valve (17, 100), said slit (21, 101) of said second disk-like valve (17, 100) is a radial slit, a center thereof being in agreement with the intersection (20) of the slits (18, 19, 71, 72, 81, 82, 91, 92) of said first disk-like valve (16, 70, 80, 90).
Claim 2
Dependent Claim
297 words
A medical instrument comprising a main body (11), in which a path for receiving a bar-like member (15, 49) is formed and a valve (16, 17, 70, 80, 90, 100) mounted on said main body (11), closing said path and having two end faces in the path direction and a slit (18, 19, 21, 71, 72, 81, 82, 91, 92, 101) for receiving said bar-like member (15, 49) and maintaining at least a liquid-tight seal with said bar-like member (15, 49) being passed therethrough, and for closing said path at least in a liquid tight-state when said bar-like member (15, 49) is absent from said path, said valve (16, 17, 70, 80, 90, 100) being made of a flexible and elastic material and including a first disk-like valve (16,70,80,90) having a first slit (18, 71, 81, 91) open only to one end face of said first disk-like valve (16, 70, 80, 90) and a second slit (19, 72, 82, 92) open only to the other end face thereof, said first and-second slits (18,19,71,72,81,82,91, 92) extending only partly through said first disk-like valve (16, 70, 80, 90) and crossing each other inside said first disk-like valve (16, 70, 80, 90) to connect each other at their intersection, characterized by a second disk-like valve (17, 100) in parallel and contacting said one end face of said first disk-like valve (16, 70, 80, 90) and having a slit (21,101) extending through and being open to both end faces of said second disk-like valve (17, 100), said slit (21, 101) of said second disk-like valve (17, 100) is a radial slit, a center thereof being in agreement with the intersection (20) of the slits (18, 19, 71, 72, 81, 82, 91, 92) of said first disk-like valve (16, 70, 80, 90).
Claim 3
Dependent Claim
26 words
The medical instrument according to claim 1, wherein said soft elastic material comprises a material selected from the group consisting of rubber, natural rubber, and sponge.
Claim 4
Dependent Claim
42 words
The medical instrument according to claim 1, wherein said first disk-like valve (16, 70, 80, 90) has a height of not less than 1 mm, said first and second slits (18,19,71,72,81, 82,91,92) crossing at a length of not less than 0,4 mm.
Claim 5
Dependent Claim
27 words
The medical instrument according to claim 1, comprising a branch port (23) being connected to said main body and communicating with a bar-like member insertion path (14).
Claim 6
Dependent Claim
33 words
The medical instrument according to claim 1, wherein said first and second slits (18, 19, 71, 72, 81, 82, 91, 92) of said first disk-like valve (16, 70, 80, 90) are arcuated slits.
Claim 7
Dependent Claim
66 words
The medical instrument according to claim 1, wherein said first slit (71) of said first disk-like valve (70) comprises a plurality of slits (71A, 71B) crossing each other, and wherein said second slit (72) thereof comprises a plurality of slits (72A, 72B) crossing each other, said first and seconds slits (71, 72) crossing inside said first disk-like valve (70) so that individual intersections overlap each other.
Claim 8
Dependent Claim
71 words
The medical instrument according to claim 1, wherein said first slit (81) of said first disk-like valve (80) comprises a plurality of slits (81A, 81 B) which do not cross each other, and wherein said second slit (82) thereof comprises a plurality of slits (82A, 82B) which do not cross each other, said first and second slits (81, 82) crossing at a plurality of positions inside said first disk-like valve (80).
Claim 9
Dependent Claim
26 words
The medical instrument according to claim 1, wherein at least one end face of said first (90) or second valve has a projecting surface (93, 94).
References Cited (Backward Citations)
No citation records indexed.
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