EP0049509A2
Expired / Lapsed
EP
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Apparatus for analyzing biological liquids
Assignee: Radiometer AS
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Filing: 1981-10-05
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Granted: —
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Expires: 2001-10-05
Abstract
Abstract An apparatus for analyzing biological liquids comprises a measuring block (10) including measuring means (11- 13) for measuring characteristics of said liquids. The measuring block is mounted within a thermal shield or housing (19) by means of a base member (21) interconnecting a minor part of the inner wall of the housing and the measuring block so as to define a space between the inner walls of the housing and the measuring block, said space being filled with air or another medium having a poor thermal conductivity. The thermal shield or housing (19) and the base member (21) are made of a material with good thermal conductivity, and heating and/or cooling means (25) are arranged in heat conductive contact with the said shield. The function of the heating and or cooling means is controlled by a temperature sensor (26) arranged in heat conductive contact with the measuring block (19), so as to maintain the temperature of said block at a substantially constant predetermined value.
Inventors
- 👤 Finn Chresten Lundsgaard
- 👤 Willy Andersen
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 03:14
CPC Classifications
G; G01; G01N; G01N35/00
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
139 words
An apparatus for analyzing biological liquids and comprising a measuring body (10) including measuring means (11 - 13) for measuring characteristics of said liquids, characterized in a thermally shielding housing (19) enclosing said body (10) in spaced relationship therewith, said housing being made from a material with good thermal conductivity, and the space defined between said body and said housing containing a medium with poor thermal conductivity, connecting means (21, 22) placing a minor part of said housing (19) in direct heat conductive contact with said body (10), temperature regulating means (25) arranged in heat conductive contact with said housing, and in a temperature sensor (26) arranged in heat conductive contact with said body (10) for controlling the function of said heat regulating means so as to maintain the temperature of said body at a substantially constant predetermined value.
Claim 2
Independent Claim
139 words
An apparatus for analyzing biological liquids and comprising a measuring body (10) including measuring means (11 - 13) for measuring characteristics of said liquids, characterized in a thermally shielding housing (19) enclosing said body (10) in spaced relationship therewith, said housing being made from a material with good thermal conductivity, and the space defined between said body and said housing containing a medium with poor thermal conductivity, connecting means (21, 22) placing a minor part of said housing (19) in direct heat conductive contact with said body (10), temperature regulating means (25) arranged in heat conductive contact with said housing, and in a temperature sensor (26) arranged in heat conductive contact with said body (10) for controlling the function of said heat regulating means so as to maintain the temperature of said body at a substantially constant predetermined value.
Claim 3
Dependent Claim
20 words
An apparatus according to claim 1, characterized in that said measuring body is in the form of a block (10).
Claim 4
Dependent Claim
36 words
An apparatus according to claim 1 or 2, characterized in that said temperature regulating means (25) are arranged adjacent to the location at which said body (10) is in heat conductive contact with said housing (19).
Claim 5
Independent Claim
42 words
An apparatus according to any of the claims 1 - 3, characterized in that the temperature sensor (26) is arranged on the measuring body (10) adjacent to the location where said body is in direct heat conductive contact with said housing (19).
Claim 6
Independent Claim
52 words
An apparatus according to any of the claims 1 - 4, characterized in one or more conduits (15, 16, 18) for feeding liquid to said measuring means (11 - 13) in said body (10), a substantial length of said feeding conduit or conduits extending in heat conductive contact with said housing (19).
Claim 7
Dependent Claim
37 words
An apparatus according to claim 5, characterized in that said length of the feeding conduit or conduits (15, 16, 18) extend in a channel or groove (27, 29, 30) formed at the walls of said housing (19).
Claim 8
Independent Claim
52 words
An apparatus according to any of the claims 1 - 6, characterized in that said connecting means comprise a heat conductive base member (21) having its one end part mounted on the inner wall of said housing, the measuring body (10) being mounted on the other end portion of the base member.
Claim 9
Dependent Claim
32 words
An apparatus according to claim 7, characterized in that the minimum cross-sectional area of said base member (21) is substantially smaller than the maximum cross-sectional area of the said measuring block (10).
Claim 10
Independent Claim
34 words
An apparatus according to any of the claims 7 or 8, characterized in that at least one conduit (16) for feeding liquid to said measuring means extends in contact with the base member (21).
Claim 11
Independent Claim
46 words
An apparatus according to any of the claims 2 - 9, characterized in that the measuring block (10) comprises a block-shaped body (10a) of glass ceramics and an outer jacket (10b) of metal, such as the metal covering the outer surface of said block-shaped body (lOb).
References Cited (Backward Citations)
No citation records indexed.
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