Chemical apparatus and process disinfecting – deodorizing – preser – Analyzer – structured indicator – or manipulative laboratory... – Calorimeter
Patent
1997-11-14
1999-02-09
Snay, Jeffrey
Chemical apparatus and process disinfecting, deodorizing, preser
Analyzer, structured indicator, or manipulative laboratory...
Calorimeter
422103, 436165, 436180, B01L 300, G01N 100
Patent
active
058690026
DESCRIPTION:
BRIEF SUMMARY
The present invention relates to the processing of an analysis card.
The term "analysis" is intended to mean any method or process making it possible to identify, separate, isolate, determine, detect or quantify a material, a product, a substance, or a compound, referred to under the generic expression "analyte", on the basis of a specimen or sample to be analyzed, possibly diluted beforehand with any suitable medium, for example a solvent. The analyte under examination may be of chemical, biochemical or else biological nature, for example an antigen or an antibody in the latter case.
The term "analysis card" is intended to mean any device, module or system which is internally arranged in such a way as to carry out the various processes or reactions needed for identification, separation, detection or quantification of the analyte, by means of various treatments, in particular within said card, or manipulations of the analysis card, for example automatically. An analysis card of this type, well-known to the person skilled in the art, constitutes an assembly which is closed off from the outside or its immediate environment, obviously with the exception of any passages or equivalent means which make it possible, in particular and initially, to introduce the specimen or sample to be analyzed. An analysis card of this type contains the physicochemical, chemical, biochemical or biological reagent or reagents, distributed and held in the card, in accordance with the path of the specimen to be analyzed, and the reaction processes or reactions to be carried out in order to perform the analysis. An analysis card as envisaged by the present invention, in general constituting a single-use device or assembly, that is to say one which is disposed of or destroyed after it has been used, comprises or incorporates in it a plurality of chambers, arranged in series and/or in parallel, one of which, for example the last one, is in particular an optical measurement chamber. These analysis cards can be made or produced using any suitable techniques, for example in one or more parts which are assembled (for example welding) with one another and are made, for example, by molding one or more identical or different plastics.
In the claims and the description, the term "chamber" denotes any enclosure or passage which receives and/or circulates any liquid, fluid or gas present in the analysis card.
The subject of the present invention is a particular analysis card, permitting an operation of establishing communication between at least two chambers which are formed in an analysis card and are initially isolated from one another, this operation being carried out remotely and without interaction or mechanical contact with the analysis card.
The present invention resides in the interaction of two essential means, namely, on the one hand, a light beam, in particular a coherent light beam, having at least one predetermined wavelength .lambda. and a predetermined power P, which is obtained from the light source, in particular a laser, and on the other hand a structure or arrangement of an analysis card, in which at least two chambers which are isolated from one another and from the outside are formed; however, this structure is specifically designed for using this light beam to establish at least one passage between at least two chambers of said card.
More precisely, according to the present invention, the two chambers are separated from one another by a perforable partition which is arranged within said card and is made of absorbant material, in particular plastic, absorbing the light energy of the aforementioned light beam to convert it into heat energy which can at least locally remove said material; and two cavities are formed on either side of the partition and are in communication with or contained in the two chambers respectively; and a window made of a material which is transparent at least to the wavelength .lambda. is arranged facing said partition and defines therewith one of said cavities, referred to as the incident light ray c
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patent: 5472671 (1995-12-01), Nilsson et al.
patent: 5652149 (1997-07-01), Mileaf et al.
Limon Bernard Jean-Marie
Marquis-Weible Fabienne
Renaud Philippe
Bio Merieux
Snay Jeffrey
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