Test strip for examination liquid test sample

• US 20050019211A1
• Filed: 07/24/2003
• Published: 01/27/2005
• Est. Priority Date: 07/24/2003
• Status: Abandoned Application

• Current Assignee: Ching-Ho Lien
• Original Assignee: Ching-Ho Lien
• Inventors: Lien, Ching-Ho
• Application Number:
  US10/627,319
• Publication Number:
  US 20050019211A1
• Time in Patent Office: Days
• US Class Current: 422/56
• CPC Class Codes: G01N 27/3272 Test elements therefor, i.e. disposable laminated substrates with electrodes, reagent and channels optical biosensors G01N33/52
• CPC Class Codes: G01N 33/521 Single-layer analytical elements
• CPC Class Codes: G01N 33/558 using diffusion or migration of antigen or antibody immunochromatographic test strips G01N33/54387

Abstract

A test strip is constructed to include a substrate and a bio-carbon circuit pattern formed of two circuits and printed on the substrate, the circuits each having a front probe end spaced from each other by a test sample accumulation space in the substrate and adapted to contact the liquid test sample being dropped from the top side or guided from one lateral side of the substrate and to produce a reacted signal and then to transmit the reacted signal to the meter in which the test strip is inserted after contact of the front probe ends of the circuits with the applied liquid test sample.

Claims

1. A test strip adapted to receive a liquid test sample and insertable in ammeter for enabling the received liquid test sample to be analyzed by the meter, the test strip comprising:

a narrow elongated strip of substrate insertable in the meter and adapted to carry the liquid test sample to be examined; and

a circuit pattern formed in said strip of substrate, said circuit pattern comprising a first circuit and a second circuit adapted to contact the liquid test sample been applied to said strip of substrate, to produce a reacted signal upon contact with the liquid test sample been applied to said strip of substrate, and to transmit said reacted signal to the meter in which the test strip is inserted.

2. The test strip as claimed in claim 1, wherein said circuit pattern is formed of bio-carbon.

3. The test strip as claimed in claim 1, wherein said first circuit and said second circuit each comprise a front probe end adapted to contact the applied liquid test sample, a rear contact end adapted to contact a respective contact in the meter, and an elongated transmission section connected between said front probe end and said rear contact end;

said strip of substrate comprises a test sample accumulation space defined between the front probe ends of said first and second circuits and adapted to accumulate the applied liquid test sample.

4. The test strip as claimed in claim 1, wherein said strip of substrate comprises a protruding guide portion adapted to pick up the liquid test sample to be examined and to guide the received liquid test sample to said test sample accumulation space.

5. The test strip as claimed in claim 1, wherein the front probe end of said second circuit is spaced from and extends around bottom and lateral sides of the front probe end of said first circuit.

6. The test strip as claimed in claim 1, wherein said circuit pattern further comprises a plurality of auxiliary contacts spaced between the rear contact end of said first circuit and the rear contact end of said second circuit and respectively connected to the transmission section of said second circuit.