EP0327519A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
An appliance for the mixing and/or transfer of a substance
Assignee: AstraZeneca AB
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Filing: 1989-01-30
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Granted: —
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Expires: 2009-01-30
Abstract
Abstract An appliance for the mixing and/or transfer of a substance, particularly a medical solution. The appliance comprises a first unit (2), with one or more connection apertures (10, 14) for connection to external containers (12, 16) and a second unit(4) which is connected or connectable to a substance container (6). Devices (44, 34) are provided on said first and second units (2, 4) for connection of the two units to each other. An automatic shut-off valve (8) is fitted in at least one of the connection apertures in the first unit (2). The valve (8) keeps the connection aperture (10) closed in an inactive position, whilst it is opened and kept open by the container (12) connected to one of the connection apertures (10.
Inventors
- 👤 Anders Tore Kers
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-22 23:22
CPC Classifications
A; A61; A61J; A61J1/00; A61J1/14; A61J1/20; A61J1/2089; A61J1/2096; A61J1/2003; A61J1/2006; A61J1/201; A61J1/2048; A61J1/2055; A61J1/2058
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
121 words
An appliance for the mixture and/or transfer of a substance, particularly a medical solution for injection, comprising a first unit (2) with one or more connection apertures (10, 14) for connection to external containers (12, 16), a second unit (4) connected or connectable to a substance container (6), whereby devices (44, 34) are provided on said first and second units (2, 4) for connection of the two units to each other, characterized in that in at least one connection aperture (10) in the first unit (2) an automatic shut-off valve (8) is fitted, which in an inactive position keeps the connection aperture (10) closed and which is opened and kept open by one in the connection apertures (10) connected container (12).
Claim 2
Dependent Claim
121 words
An appliance for the mixture and/or transfer of a substance, particularly a medical solution for injection, comprising a first unit (2) with one or more connection apertures (10, 14) for connection to external containers (12, 16), a second unit (4) connected or connectable to a substance container (6), whereby devices (44, 34) are provided on said first and second units (2, 4) for connection of the two units to each other, characterized in that in at least one connection aperture (10) in the first unit (2) an automatic shut-off valve (8) is fitted, which in an inactive position keeps the connection aperture (10) closed and which is opened and kept open by one in the connection apertures (10) connected container (12).
Claim 3
Dependent Claim
48 words
An appliance as claimed in claim 1, characterized in that a shut-off valve (8) consists of an elastic plug (52) fitted in one end of a through duct (48) in the first unit (2), whereby the sealing plug (52) bears against and closes off the connection aperture (10).
Claim 4
Dependent Claim
66 words
An appliance as claimed in claim 2, characterized in that on the container (12), preferably a hypodermic syringe, intended for connection to the connection aperture (10), a sealing Luer cone (64) is provided, whereby the point of said Luer cone in connected position presses down the elastic valve plug (52) to a position which opens a connection between the connection aperture (10) and the duct (48).
Claim 5
Dependent Claim
51 words
An appliance as claimed in claim 2, characterized in that the said device on the first unit (2), for connection to the second unit (4), contains a to the duct (48) connected hollow spike (44), the end of which is diagonally cut to form a point (46) or a sharp tip.
Claim 6
Dependent Claim
57 words
An appliance as claimed in claim 4, characterized in that the said device on the second unit (4) for connection to the first unit (2) contains one against the spike (44) sealing cylindrical aperture (34), which is sealed by a membrane (36) provided at the bottom of the aperture and on connection penetrable by the spike (44).
Claim 7
Dependent Claim
52 words
An appliance as claimed in claim 5, characterized in that means are provided to lock axially the first unit (2) to the second unit (4), whereby said means of the first unit (2) comprise a cylindrical housing (40) which surrounds the spike (44) and which is provided with internal thread-shaped grooves (42).
Claim 8
Dependent Claim
91 words
An appliance as claimed in claim 6, characterized in that the said means on the second unit (4) for axial locking to the first unit (2) comprise a cylindrical neck (30) which surrounds the cylindrical aperture (34) and which has an external diameter which is the same size as the internal diameter of the cylindrical housing (40) of the first unit, whereby two diametrically arranged, thread-shaped bayonet lips (32) are provided on the outside of the cylindrical neck (30) for interaction with the thread-shaped grooves (42) on the first unit (2).
Claim 9
Dependent Claim
35 words
An appliance as claimed in claim 7, characterized in that the cylindrical neck (30) before the connection to the first unit (2) is sealed by an aluminium wafer (38) welded fast on the neck (30).
Claim 10
Dependent Claim
53 words
An appliance as claimed in claim 2, characterized in that a second connection aperture (14) is arranged in contact with the duct (48) in the first unit(2), which aperture (14) is in the form of a Luer cone and is intended to be connected to a flexible container (16), preferably a liquid container.
Claim 11
Dependent Claim
31 words
An appliance as claimed in claim 9, characterized in that locking devices (66, 68) are provided on the connection apertures (10, 14) for axial locking of the connected containers (12, 16).
References Cited (Backward Citations)
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