Global Patent Index - EP 0442872 A4

EP 0442872 A4 19920805 - DUAL ABSORBENT ANALYTE DETECTION

Title (en)

DUAL ABSORBENT ANALYTE DETECTION

Publication

EP 0442872 A4 19920805 (EN)

Application

EP 89902484 A 19881114

Priority

US 8804059 W 19881114

Abstract (en)

[origin: WO9005906A1] A test device (12) and method for detecting an analyte in a liquid sample by treating the sample with liquid reagents to form a detectable product. The device (12) includes a reaction zone (32) capable of retaining the detectable product and a control absorbent (30) in liquid-transferring contact with the reaction zone (32). The control absorbent (30) has a predetermined liquid-absorbing capacity and is positioned such that when the control absorbent (30) is filled to capacity, it effectively meters a predetermined flow through the reaction zone (32). The device also includes (with or without the control absorbent (30)): an absorbent reservoir (38); means for retaining the absorbent reservoir (38) in a first position spaced apart from liquid-transferring contact with the control absorbent (30); and means for moving the absorbent reservoir (38) from the first position to a second position in liquid transferring contact with the control absorbent (30).

IPC 1-7

G01N 21/77; G01N 21/78; G01N 33/543

IPC 8 full level

B01L 3/00 (2006.01); G01N 21/78 (2006.01); G01N 33/48 (2006.01); G01N 33/543 (2006.01); B01L 3/14 (2006.01)

CPC (source: EP)

B01L 3/5023 (2013.01); G01N 21/78 (2013.01); G01N 33/54366 (2013.01); B01L 3/5029 (2013.01); B01L 3/5082 (2013.01); B01L 2300/046 (2013.01); B01L 2400/0406 (2013.01); B01L 2400/0633 (2013.01); B01L 2400/065 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AT BE CH DE FR GB IT LI LU NL SE

DOCDB simple family (publication)

WO 9005906 A1 19900531; EP 0442872 A1 19910828; EP 0442872 A4 19920805; JP H04502961 A 19920528

DOCDB simple family (application)

US 8804059 W 19881114; EP 89902484 A 19881114; JP 50236589 A 19881114