US 7,608,464 B2
Method for use in testing of liquid samples, a test unit utilizing the method and a system comprising such test units
Niilo Kaartinen, Vuolahti, FIN-21620 Kuusisto (Finland); and Timo Kaartinen, Paraistentie 19 C 36, FIN-00280 Helsinki (Finland)
Appl. No. 10/467,022
PCT Filed Jan. 31, 2002, PCT No. PCT/FI02/00073
§ 371(c)(1), (2), (4) Date Jan. 22, 2004,
PCT Pub. No. WO02/061395, PCT Pub. Date Aug. 08, 2002.
Claims priority of application No. 20010190 (FI), filed on Feb. 01, 2001.
Prior Publication US 2004/0115829 A1, Jun. 17, 2004
Int. Cl. G01N 1/10 (2006.01); E03B 1/00 (2006.01); C12Q 1/68 (2006.01); F16K 51/00 (2006.01)
U.S. Cl. 436—180  [137/3; 422/50; 251/142] 12 Claims
OG exemplary drawing
 
1. A method of combining liquids for testing a liquid sample, comprising:
providing the liquid sample in a feed duct, the feed duct configured for connection to a dosage space via an inlet valve, wherein the dosage space comprises a liquid medium; and withdrawing an amount of the liquid medium from the dosage space with a suction action while keeping the inlet valve opened, and drawing an amount of the liquid sample into the dosage space to replace the amount of liquid medium withdrawn from the dosage space.