EP0442232A1 - Apparatus for the analysis of liquid samples - Google Patents
Apparatus for the analysis of liquid samples Download PDFInfo
- Publication number
- EP0442232A1 EP0442232A1 EP90403634A EP90403634A EP0442232A1 EP 0442232 A1 EP0442232 A1 EP 0442232A1 EP 90403634 A EP90403634 A EP 90403634A EP 90403634 A EP90403634 A EP 90403634A EP 0442232 A1 EP0442232 A1 EP 0442232A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- strip
- stick
- liquid
- immersed
- container
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L3/00—Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
- B01L3/50—Containers for the purpose of retaining a material to be analysed, e.g. test tubes
- B01L3/508—Containers for the purpose of retaining a material to be analysed, e.g. test tubes rigid containers not provided for above
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L9/00—Supporting devices; Holding devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2300/00—Additional constructional details
- B01L2300/06—Auxiliary integrated devices, integrated components
- B01L2300/0609—Holders integrated in container to position an object
Definitions
- the present invention relates to an analysis device, intended for the analysis of samples of liquids.
- reagents intended for the analysis of samples of liquids, are presently presented in the form of strips or rods.
- these strips or sticks comprise at least one reaction zone, impregnated with one or more suitable reactive products, which zone is brought into contact with the liquid to be analyzed, either by direct immersion or by capillarity.
- the result of the analysis which generally results in a change in appearance of the reaction zone, is read directly on this zone.
- This presentation offers many advantages: it allows a quick and simple analysis, replacing a whole series of manipulations by simply dipping a strip in the liquid to be analyzed; it is therefore particularly well suited to the implementation of large-scale analyzes, as well as to the analysis by unqualified persons, or in places where only limited equipment is available. , for example analyzes in the field, or carried out by an individual at his home.
- reagent strips intended for diagnosis in the medical field. These strips are used for the identification or the determination of different substances present in biological fluids, in particular urine.
- the reagents in strips or sticks are generally designed to give a rapid result, it is necessary to leave them for a certain time, which is of the order of a few minutes, in contact with the liquid to be analyzed; a problem is then posed by the holding the strip or stick in the liquid; this problem can, in certain cases, be solved by placing one end of the stick or the strip at the bottom of the container containing the liquid to be analyzed; however, this holding system is unstable, and does not allow the level of immersion of the strip or the stick to be easily adjusted in the liquid; or it may be important to precisely adjust this level, in particular in the case of certain strips or sticks where the reaction zone is supplied by capillary action but must not be immersed in the liquid.
- the object of the present invention is to provide a solution to this problem, by proposing a means for holding the strip or the stick in the liquid to be analyzed.
- the present invention relates to a device for the analysis of liquid samples, which device is characterized in that it comprises the combination of a strip or a stick comprising at least one reaction zone, and means suitable for maintaining a determined portion of said strip or of said stick in immersion in the liquid to be analyzed.
- said holding means consist of the container containing the liquid to be analyzed, and the strip or the stick is provided with at least one member for securing to said container.
- the member for securing the strip or the stick to the container consists of a cover, placed on the rim of said container, and provided with at least one orifice allowing the passage of the strip or stick.
- the member for securing the strip or the stick to the container consists of an adhesive zone located near the end of the strip or stick opposite to that immersed in the liquid.
- the member for securing the strip or the stick to the container consists of a clamp, fixed in the vicinity of the end of the strip or of the stick opposite to that immersed in the liquid.
- the end of the strip or of the stick opposite to that immersed in the liquid is provided with an arm moving said strip or said stick away from the wall of the container.
- Said arm can advantageously be formed by folding of said end.
- the means for holding the strip or the stick are independent of the container containing the liquid to be analyzed.
- This embodiment has the advantage of allowing the strip to be held without having to adjust the position thereof as a function of the dimensions of the container.
- said holding means is constituted by a float.
- the reagents used in the examples which follow, and represented in the corresponding figures consist of a plastic strip, on which is adhered a fibrous and absorbent material; several zones are individualized along the length of the strip; a zone (1) which is intended to be immersed in the liquid to be analyzed; a reaction zone (2), which is impregnated with suitable reactive substances; a zone (3) intended for the manipulation of the strip or the stick by the user.
- the device shown in Figure 1 consists of a cover (4), pierced with an orifice (5) allowing the passage of the strip.
- the cover is placed on the container containing the liquid to be analyzed; the strip is slid into the orifice, and can slide therein; its position can thus be adjusted in height, depending on the level of the liquid.
- the upper part of the strip which corresponds to the area allowing the manipulation of said strip by the user, is folded back on itself by two folds (6) (7).
- the zone delimited by the edges of the 2 successive folds forms an arm (8), which allows the submerged zone and the reaction zone to be moved away from the internal wall of the container.
- the area delimited by the edge of the second fold and the upper end of the strip is provided with an adhesive (9), which makes it possible to fix the strip or the stick on the wall of the container, at the desired height.
- the upper part of the strip which corresponds to the zone allowing the manipulation of said strip by the user, is folded in a zigzag by two folds (10) (11).
- the zone delimited by the edges of the 2 successive folds forms an arm (12), which allows the submerged zone and the reaction zone to be moved away from the internal wall of the container.
- the area delimited by the edge of the second fold and the upper end of the strip, is fitted with a clamp (13), which allows the strip to be fixed to the edge of the container.
- the device shown in Figure 4 consists of a float (14), made of a suitable material, such as a rigid foam, and pierced with an orifice (15) allowing the passage of the strip.
- the strip is slid into the hole, and positioned as desired; the device is then deposited on the surface of the liquid.
- the float is here placed between the submerged zone and the reaction zone, which protects the latter from contact with the liquid to be analyzed, and also allows easy reading of the result.
Abstract
Description
La présente invention est relative à un dispositif d'analyse, destiné à l'analyse d'échantillons de liquides.The present invention relates to an analysis device, intended for the analysis of samples of liquids.
De nombreux réactifs, destinés à l'analyse d'échantillons de liquides, sont présentés actuellement sous forme de bandelettes ou de bâtonnets. Dans leur conception la plus générale, ces bandelettes ou bâtonnets comprennent au moins une zone de réaction, imprégnée d'un ou plusieurs produits réactifs appropriés, laquelle zone est mise en contact avec le liquide à analyser, soit par immersion directe, soit par capillarité. Le résultat de l'analyse, qui se traduit en général par un changement d'aspect de la zone de réaction, est lu directement sur cette zone.Many reagents, intended for the analysis of samples of liquids, are presently presented in the form of strips or rods. In their most general design, these strips or sticks comprise at least one reaction zone, impregnated with one or more suitable reactive products, which zone is brought into contact with the liquid to be analyzed, either by direct immersion or by capillarity. The result of the analysis, which generally results in a change in appearance of the reaction zone, is read directly on this zone.
Cette présentation offre de nombreux avantages : elle permet une analyse rapide et simple, en remplaçant toute une série de manipulations par le simple trempage d'une bandelette dans le liquide à analyser ; elle est donc particulièrement bien adaptée à la mise en oeuvre d'analyses en grande série, ainsi qu'à la réalisation d'analyses par des personnes non qualifiées, ou bien en des lieux où l'on ne dispose que d'un équipement restreint, par exemple des analyses sur le terrain, ou effectuées par un particulier à son domicile.This presentation offers many advantages: it allows a quick and simple analysis, replacing a whole series of manipulations by simply dipping a strip in the liquid to be analyzed; it is therefore particularly well suited to the implementation of large-scale analyzes, as well as to the analysis by unqualified persons, or in places where only limited equipment is available. , for example analyzes in the field, or carried out by an individual at his home.
Pour ne mentionner qu'un domaine dans lequel les réactifs sous forme de bandelettes ou de bâtonnets sont particulièrement utilisés, on citera les bandelettes de réactifs destinées au diagnostic dans le domaine médical. Ces bandelettes sont utilisées pour l'identification ou le dosage de différentes substances présentes dans les liquides biologiques, en particulier les urines.To mention only one area in which reagents in the form of strips or sticks are particularly used, mention will be made of reagent strips intended for diagnosis in the medical field. These strips are used for the identification or the determination of different substances present in biological fluids, in particular urine.
Bien que les réactifs en bandelettes ou bâtonnets soient en général conçus pour donner un résultat rapide, il est nécessaire de les laisser un certain temps, qui est de l'ordre de quelques minutes, au contact du liquide à analyser ; un problème est alors posé par le maintien de la bandelette ou du bâtonnet dans le liquide; ce problème peut, dans certains cas, être résolu en posant une extrémité du bâtonnet ou de la bandelette au fond du récipient contenant le liquide à analyser ; toutefois ce système de maintien est instable, et ne permet pas d'ajuster facilement le niveau d'immersion de la bandelette ou du bâtonnet dans le liquide ; or il peut être important d'ajuster précisément ce niveau, en particulier dans le cas de certains bandelettes ou bâtonnets où la zone de réaction est alimentée par capillarité mais ne doit pas être immergée dans le liquide.Although the reagents in strips or sticks are generally designed to give a rapid result, it is necessary to leave them for a certain time, which is of the order of a few minutes, in contact with the liquid to be analyzed; a problem is then posed by the holding the strip or stick in the liquid; this problem can, in certain cases, be solved by placing one end of the stick or the strip at the bottom of the container containing the liquid to be analyzed; however, this holding system is unstable, and does not allow the level of immersion of the strip or the stick to be easily adjusted in the liquid; or it may be important to precisely adjust this level, in particular in the case of certain strips or sticks where the reaction zone is supplied by capillary action but must not be immersed in the liquid.
La présente invention s'est donné pour but d'apporter une solution à ce problème, en proposant un moyen de maintien de la bandelette ou du bâtonnet dans le liquide à analyser.The object of the present invention is to provide a solution to this problem, by proposing a means for holding the strip or the stick in the liquid to be analyzed.
La présente invention a pour objet un dispositif pour l'analyse d'échantillons de liquide, lequel dispositif est caractérisé en ce qu'il comprend la combinaison d'une bandelette ou d'un bâtonnet comprenant au moins une zone de réaction, et de moyens propres à assurer le maintien d'une portion déterminée de ladite bandelette ou dudit bâtonnet en immersion dans le liquide à analyser.The present invention relates to a device for the analysis of liquid samples, which device is characterized in that it comprises the combination of a strip or a stick comprising at least one reaction zone, and means suitable for maintaining a determined portion of said strip or of said stick in immersion in the liquid to be analyzed.
Selon un mode de réalisation préféré de la présente invention, lesdits moyens de maintien sont constitués par le récipient contenant le liquide à analyser, et la bandelette ou le bâtonnet est muni d'au moins un organe de solidarisation audit récipient.According to a preferred embodiment of the present invention, said holding means consist of the container containing the liquid to be analyzed, and the strip or the stick is provided with at least one member for securing to said container.
Selon une disposition particulièrement avantageuse de ce mode de réalisation, l'organe de solidarisation de la bandelette ou du bâtonnet au récipient est constitué par un couvercle, placé sur le rebord dudit récipient, et muni d'au moins un orifice permettant le passage de la bandelette ou du bâtonnet.According to a particularly advantageous arrangement of this embodiment, the member for securing the strip or the stick to the container consists of a cover, placed on the rim of said container, and provided with at least one orifice allowing the passage of the strip or stick.
Selon une autre disposition particulièrement avantageuse de ce mode de réalisation, l'organe de solidarisation de la bandelette ou du bâtonnet au récipient est constitué par une zone adhésive située au voisinage de l'extrémité de la bandelette ou du bâtonnet opposée à celle immergée dans le liquide.According to another particularly advantageous arrangement of this embodiment, the member for securing the strip or the stick to the container consists of an adhesive zone located near the end of the strip or stick opposite to that immersed in the liquid.
Selon encore une autre disposition particulièrement avantageuse de ce mode de réalisation, l'organe de solidarisation de la bandelette ou du bâtonnet au récipient est constitué par une pince, fixée au voisinage de l'extrémité de la bandelette ou du bâtonnet opposée à celle immergée dans le liquide.According to yet another particularly advantageous arrangement of this embodiment, the member for securing the strip or the stick to the container consists of a clamp, fixed in the vicinity of the end of the strip or of the stick opposite to that immersed in the liquid.
Selon une modalité préférée de l'une ou l'autre des deux dispositions qui précèdent, l'extrémité de la bandelette ou du bâtonnet opposée à celle immergée dans le liquide est munie d'un bras éloignant ladite bandelette ou ledit bâtonnet de la paroi du récipient. Ledit bras peut avantageusement être formé par pliage de ladite extrémité.According to a preferred form of one or other of the two preceding arrangements, the end of the strip or of the stick opposite to that immersed in the liquid is provided with an arm moving said strip or said stick away from the wall of the container. Said arm can advantageously be formed by folding of said end.
Selon un autre mode de réalisation préféré de la présente invention, les moyen de maintien de la bandelette ou du bâtonnet sont indépendants du récipient contenant le liquide à analyser. Ce mode de réalisation présente l'avantage de permettre le maintien de la bandelette sans avoir à régler la position de celle-ci en fonction des dimensions du récipient.According to another preferred embodiment of the present invention, the means for holding the strip or the stick are independent of the container containing the liquid to be analyzed. This embodiment has the advantage of allowing the strip to be held without having to adjust the position thereof as a function of the dimensions of the container.
Selon une disposition particulièrement avantageuse de ce mode de réalisation, ledit moyen de maintien est constitué par un flotteur.According to a particularly advantageous arrangement of this embodiment, said holding means is constituted by a float.
La présente Invention sera mieux comprise à l'aide du complément de description qui va suivre, qui se réfère aux dessins annexés, lesquels représentent différents modes de réalisation de l'Invention.The present invention will be better understood with the aid of the additional description which follows, which refers to the appended drawings, which represent different embodiments of the invention.
Il doit être bien entendu, toutefois, que ces modes de réalisation sont donnés uniquement à titre d'illustration de l'objet de l'invention, dont ils ne constituent en aucune manière une limitation.It should be understood, however, that these embodiments are given solely by way of illustration of the subject of the invention, of which they do not in any way constitute a limitation.
Les réactifs utilisés dans les exemples qui vont suivre, et représentés sur les figures correspondantes sont constitués par une bandelette en matière plastique, sur laquelle est collé un matériau fibreux et absorbant ; plusieurs zones sont individualisées sur la longueur de la bandelette ; une zone (1) qui est destinée à être immergée dans le liquide à analyser ; une zone de réaction (2), qui est imprégnée de substances réactives appropriées ; une zone (3) destinée à la manipulation de la bandelette ou du bâtonnet par l'utilisateur.The reagents used in the examples which follow, and represented in the corresponding figures consist of a plastic strip, on which is adhered a fibrous and absorbent material; several zones are individualized along the length of the strip; a zone (1) which is intended to be immersed in the liquid to be analyzed; a reaction zone (2), which is impregnated with suitable reactive substances; a zone (3) intended for the manipulation of the strip or the stick by the user.
Le dispositif représenté à la figure 1 est constitué par un couvercle (4), percé d'un orifice (5) permettant le passage de la bandelette. Le couvercle est posé sur le récipient contenant le liquide à analyser ; la bandelette est glissée dans l'orifice, et peut coulisser dans celui-ci ; sa position peut être ainsi réglée en hauteur, suivant le niveau du liquide.The device shown in Figure 1 consists of a cover (4), pierced with an orifice (5) allowing the passage of the strip. The cover is placed on the container containing the liquid to be analyzed; the strip is slid into the orifice, and can slide therein; its position can thus be adjusted in height, depending on the level of the liquid.
Dans le dispositif représenté à la figure 2, la partie supérieure de la bandelette, qui correspond à la zone permettant la manipulation de ladite bandelette par l'utilisateur, est repliée sur elle-même par deux pliures (6) (7). La zone délimitée par les arètes des 2 pliures successives forme un bras (8), qui permet d'éloigner la zone immergée et la zone de réaction de la paroi interne du récipient. La zone délimitée par l'arête de la deuxième pliure et l'extrémité supérieure de la bandelette, est munie d'un adhésif (9), qui permet de fixer la bandelette ou le bâtonnet sur la paroi du récipient, à la hauteur voulue.In the device shown in Figure 2, the upper part of the strip, which corresponds to the area allowing the manipulation of said strip by the user, is folded back on itself by two folds (6) (7). The zone delimited by the edges of the 2 successive folds forms an arm (8), which allows the submerged zone and the reaction zone to be moved away from the internal wall of the container. The area delimited by the edge of the second fold and the upper end of the strip is provided with an adhesive (9), which makes it possible to fix the strip or the stick on the wall of the container, at the desired height.
Dans le dispositif représenté à la figure 3, la partie supérieure de la bandelette, qui correspond à la zone permettant la manipulation de ladite bandelette par l'utilisateur, est repliée en zigzag par deux pliures (10) (11). La zone délimitée par les arètes des 2 pliures successives forme un bras (12), qui permet d'éloigner la zone immergée et la zone de réaction de la paroi interne du récipient. La zone délimitée par l'arête de la deuxième pliure et l'extrémité supérieure de la bandelette, est munie d'une pince (13), qui permet de fixer la bandelette au bord du récipient.In the device represented in FIG. 3, the upper part of the strip, which corresponds to the zone allowing the manipulation of said strip by the user, is folded in a zigzag by two folds (10) (11). The zone delimited by the edges of the 2 successive folds forms an arm (12), which allows the submerged zone and the reaction zone to be moved away from the internal wall of the container. The area delimited by the edge of the second fold and the upper end of the strip, is fitted with a clamp (13), which allows the strip to be fixed to the edge of the container.
Le dispositif représenté à la figure 4 est constitué par un flotteur (14), réalisé en un matériau approprié, tel qu'une mousse rigide, et percé d'un orifice (15) permettant le passage de la bandelette. La bandelette est glissée dans l'orifice, et positionnée de la façon souhaitée ; le dispositif est ensuite déposé à la surface du liquide. Le flotteur est ici placé entre la zone immergée et la zone de réaction, ce qui protège cette dernière du contact du liquide à analyser, et permet en outre une lecture aisée du résultat.The device shown in Figure 4 consists of a float (14), made of a suitable material, such as a rigid foam, and pierced with an orifice (15) allowing the passage of the strip. The strip is slid into the hole, and positioned as desired; the device is then deposited on the surface of the liquid. The float is here placed between the submerged zone and the reaction zone, which protects the latter from contact with the liquid to be analyzed, and also allows easy reading of the result.
Ainsi que cela ressort de ce qui précède, l'invention ne se limite nullement à ceux de ses modes de mise en oeuvre, de réalisation et d'application qui viennent d'être décrits de façon plus explicite ; elle en embrasse au contraire toutes les variantes qui peuvent venir à l'esprit du technicien en la matière, sans s'écarter du cadre, ni de la portée, de la présente invention.As is apparent from the above, the invention is in no way limited to those of its modes of implementation, embodiment and application which have just been described more explicitly; on the contrary, it embraces all the variants which may come to the mind of the technician in the matter, without departing from the framework, or the scope, of the present invention.
Claims (6)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9000720A FR2657433A1 (en) | 1990-01-23 | 1990-01-23 | DEVICE FOR THE ANALYSIS OF SAMPLES OF LIQUIDS. |
| FR9000720 | 1990-01-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP0442232A1 true EP0442232A1 (en) | 1991-08-21 |
Family
ID=9393006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP90403634A Withdrawn EP0442232A1 (en) | 1990-01-23 | 1990-12-18 | Apparatus for the analysis of liquid samples |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0442232A1 (en) |
| JP (1) | JPH05333019A (en) |
| FR (1) | FR2657433A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4773909B2 (en) * | 2005-09-27 | 2011-09-14 | シスメックス株式会社 | Immunochromatography kit, test container |
| JP4691476B2 (en) * | 2006-08-28 | 2011-06-01 | シスメックス株式会社 | Chromatography kit, test container |
| JP2014071015A (en) * | 2012-09-28 | 2014-04-21 | Taiheiyo Material Kk | Measurement instrument and measurement method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3368783A (en) * | 1966-02-01 | 1968-02-13 | Becton Dickinson Co | Apparatus for mounting a testing device |
| DE3413057A1 (en) * | 1984-04-06 | 1985-10-17 | MMM Münchener Medizin Mechanik GmbH, 8000 München | Mounting for sensors |
| EP0306438A1 (en) * | 1987-09-01 | 1989-03-08 | Dora Köhler | Device for receiving a plurality of carrier elements |
-
1990
- 1990-01-23 FR FR9000720A patent/FR2657433A1/en active Pending
- 1990-12-18 EP EP90403634A patent/EP0442232A1/en not_active Withdrawn
-
1991
- 1991-01-23 JP JP3085710A patent/JPH05333019A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3368783A (en) * | 1966-02-01 | 1968-02-13 | Becton Dickinson Co | Apparatus for mounting a testing device |
| DE3413057A1 (en) * | 1984-04-06 | 1985-10-17 | MMM Münchener Medizin Mechanik GmbH, 8000 München | Mounting for sensors |
| EP0306438A1 (en) * | 1987-09-01 | 1989-03-08 | Dora Köhler | Device for receiving a plurality of carrier elements |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2657433A1 (en) | 1991-07-26 |
| JPH05333019A (en) | 1993-12-17 |
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