Device for determining an analyte in a liquid sample

Details Device for determining an analyte in a liquid sample Device for determining an analyte in a liquid sample

G - Physics

01

N

G01N 1/00 (2006.01) B01L 3/00 (2006.01) G01N 33/48 (2006.01) G01N 33/543 (2006.01) G01N 33/558 (2006.01) G01N 33/76 (2006.01)

Patent

CA 2335458

The invention concerns a device for determining an analyte in a liquid sample, comprising: a) a gripping support (1); b) first capillary diffusing means (2) integral with the gripping support (1) comprising a downstream zone (2a) accessible to external observation; c) a set of predetermined reagents for detecting and/or quantifying the analyte; d) a member for collecting (4) the liquid sample mounted on the support (1). The invention is characterised in that the member for collecting (4) the liquid sample is mounted mobile or fixed on the support; second capillary diffusion means (41) extends from a zone collecting (41a) said sample, to a zone transferring (41b) the latter; and an upstream zone (2b) of said first capillary diffusion means (2) is arranged to be urged temporarily to constitute continuous capillary flow with the second diffusion means (41) transferring zone (41b), when the collecting member (4) is in the retracted position.

Dispositif de détermination d'un analyte dans un échantillon liquide, comprenant: a) un support de préhension (1); b) un premier moyen de diffusion (2) capillaire, solidaire du support de préhension (1), comprenant une zone aval (2a) accessible à une observation externe; c) un ensemble de réactifs prédéterminés pour la détection et/ou quantification de l'analyte; d) un organe de captation (4) de l'échantillon liquide, monté sur le support (1). L'organe de captation (4) de l'échantillon liquide, est monté sur le support (1) de manière mobile, ou inversement; un deuxième moyen (41) de diffusion capillaire s'étend d'une zone de collection (41a) dudit échantillon, à une zone de transfert (41b) de ce dernier; et une zone amont (2b) du premier moyen (2) de diffusion capillaire est agencée pour venir de manière temporaire en continuité d'écoulement capillaire avec la zone de transfert (41b) du second moyen (41) de diffusion, dans la position rétractée de l'organe de captation (4).

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