EP0143340A2
Expired / Lapsed
EP
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Arrangement for the venting of a liquid
Assignee: Gambro Lundia AB
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Filing: 1984-10-26
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Granted: —
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Expires: 2004-10-26
Abstract
Abstract An arrangement for the venting of a liquid which flows through a duct (2, 5, 12, 18, 35) comprising a throttling means (14), a suction pump (26) arranged downstream of it and a venting chamber (27) arranged downstream of the pump (26). Between the throttling means (14) and the pump (26) is arranged an expansion chamber (16) which facilitates the formation of air bubbles of an appropriate size which are not excessively broken up in the following pump (26). <??>The arrangement in accordance with the invention is intended to be used in particular in a system for the preparation of dialysis fluid through mixing of one or more concentrates with water.
Inventors
- 👤 Fritz Lennart Brorsson
- 👤 Bengt Ake Gustav Dahlberg
- 👤 Bengt Magnus Holmberg
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 02:59
CPC Classifications
A; A61; A61M; A61M1/00; A61M1/14; A61M1/16; A61M1/1654; A61M1/1656; A61M1/1658
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
54 words
An arrangement for the venting of a liquid which flows through a duct (2,5,12,18,35) comprising a throttling means (14), a suction pump (26) arranged downstream of it and a venting chamber (27) arranged downstream of the pump, character- ized by an expansion chamber (16) arranged between the throttling means (14) and the pump (26).
Claim 2
Dependent Claim
54 words
An arrangement for the venting of a liquid which flows through a duct (2,5,12,18,35) comprising a throttling means (14), a suction pump (26) arranged downstream of it and a venting chamber (27) arranged downstream of the pump, character- ized by an expansion chamber (16) arranged between the throttling means (14) and the pump (26).
Claim 3
Dependent Claim
34 words
An arrangement in accordance with claim 1, charac- terized in that the inlet (15) to the expansion chamber (16) is arranged at its base and the outlet (17) of the same at its top.
Claim 4
Dependent Claim
24 words
An arrangement in accordance with claim 2, charac- terized by a nonreturn valve arranged directly after the outlet (17) of the expansion chamber (16).
Claim 5
Dependent Claim
22 words
An arrangement in accordance with claim 2 or 3, characterized by a shunt line (20) arranged parallel with the expansion chamber (16).
Claim 6
Dependent Claim
45 words
An arrangement in accordance with claim 4, charac- terized by a valve (21) arranged in the shunt line (20) which is adapted so that it is kept shut at normal working pressure but is opened when the normally negative pressure rises to nominally lower values.
Claim 7
Dependent Claim
36 words
An arrangement in accordance with claim 5, charac- terized in that the valve (21) arranged in the shunt line is constituted of a compressible tube (20a) which is automatically sucked together at nominally higher partial vacuum.
Claim 8
Dependent Claim
47 words
An arrangement in accordance with claim 6, charac- terized by a pinch device (21a) arranged on the tube (20a) which is adapted so that it compresses the points which are to form the end points of the compressed tube already in the open position of the tube.
Claim 9
Dependent Claim
34 words
An arrangement in accordance with anyone of claims 1-7, characterized in that the inlet (28) to the venting chamber (27) is arranged tangentially on a higher level than the outlet (29) of the same.
Claim 10
Dependent Claim
30 words
An arrangement in accordance with claim 8, charac- terized in that the outlet (29) too is arranged tangentially but in countercurrent to the vortex formation produced by the inlet (28).
Claim 11
Dependent Claim
57 words
An arrangement in accordance with anyone of claims 1-8, characterized by an outlet (30) arranged at the highest point of the venting chamber (27) for air accumulated therein, and by a float valve (31) arranged in the same chamber (27) which is adapted so as to prevent liquid from being sucked out through the air outlet (30).
Claim 12
Dependent Claim
26 words
An arrangement in accordance with anyone of the preceding claims, characterized in that the throttling means (14) arranged upstream of the expansion chamber (16) is adjustable.
Claim 13
Dependent Claim
23 words
An arrangement in accordance with anyone of the preceding claims, characterized by a suction pump (53) arranged downstream of the venting chamber (27).
Claim 14
Dependent Claim
34 words
An arrangement in accordance with anyone of the preceding claims, characterized in that it forms part of a system for the preparation of dialysis fluid through mixing of one or more concentrates with water.
References Cited (Backward Citations)
No citation records indexed.
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