FAST FLOW APPARATUS AND METHOD TO EVALUATE ANALTYES IN LIQUID, SOLID AND SEMISOLID SAMPLES

• US 20140363353A1
• Filed: 01/26/2012
• Published: 12/11/2014
• Est. Priority Date: 01/26/2012
• Status: Abandoned Application

• Current Assignee: Salvo, Lawrence A.
• Original Assignee: Salvo, Lawrence A.
• Inventors: Salvo, Lawrence A.
• Application Number:
  US14/373,610
• Publication Number:
  US 20140363353A1
• Time in Patent Office: Days
• US Class Current: 422/417
• CPC Class Codes: B01L 2200/16 Reagents, handling or storing thereof
• CPC Class Codes: B01L 2300/021 Identification, e.g. bar codes
• CPC Class Codes: B01L 2300/0825 Test strips
• CPC Class Codes: B01L 2300/0861 Configuration of multiple channels and/or chambers in a single devices
• CPC Class Codes: B01L 2300/087 Multiple sequential chambers
• CPC Class Codes: B01L 3/5023 with a sample being transported to, and subsequently stored in an absorbent for analysis
• CPC Class Codes: G01N 2021/752 Devices comprising reaction zones
• CPC Class Codes: G01N 2021/7759 Dipstick; Test strip
• CPC Class Codes: G01N 21/78 producing a change of colour
• CPC Class Codes: G01N 21/8483 Investigating reagent band test-element handling not specific to a test method G01N33/4875; analytical elements specific to chemical analysis of biological material G01N33/52; autometer with reagent band G01N35/04
• CPC Class Codes: G01N 33/558 using diffusion or migration of antigen or antibody immunochromatographic test strips G01N33/54387

Abstract

Disclosed is a fast flow device, for detecting an analyte in a sample, comprising a grooved sample pad for collecting the sample, a test strip coupled to the sample pad, and a housing enclosing and allowing visualization of the test strip. The sample pad can include markings for determining the amount of sample collected. The device can also preferably include a vented flexible collar connecting the housing to a run fluid container, which vented flexible collar fits over the sample pad and forms an air-tight seal between the housing and the run fluid container. The device achieves fast flow because the venting equalizes internal pressure of the housing and run fluid container and because of the grooving on the sample pad. Further, the device can include a second sample pad/test strip combination for detection of a second analyte. Also disclosed are methods for detecting an analyte in a sample using the device.

Claims

1. A fast flow device for performing a test reaction on a sample to detect an analyte comprising:

a grooved sample pad for collecting the sample, the sample pad comprising at least one marking providing a visual indication of the amount of sample collected, wherein the at least one marking is disposed and located on the sample pad so as to provide visual measurement indication, in both the presence or absence of sample, of a minimum or maximum amount of sample to be collected for delivering sample to the test strip for determining a presence or absence of an analyte in the sample, the sample pad having a backside embossed with at least one groove to fast flow fluid;

a test strip coupled to the sample pad, the test strip comprising an indicator region configured to provide a visual indication of the presence or absence of the analyte in the sample; and

a housing comprising a first end and a second end, wherein the test strip is disposed within the housing, the housing allowing visualization of the test strip, and wherein at least a portion of the sample pad extends beyond the first end of the housing.

2. The fast flow device of claim 1 further comprising:

a run fluid container configured to be positioned over the portion of the sample pad that extends beyond the first end of the housing; and

a vented flexible collar disposed between and connecting the first end of the housing and the run fluid container, wherein the vented flexible collar allows insertion of the sample pad and the test strip into the housing and is configured to maintain coupling of the test strip to the sample pad and wherein the vent equalizes internal air pressure of the housing and the run fluid container to facilitate fast flow.

3. The fast flow device of claim 1, wherein the device is configured for testing a fluid sample.

4. The fast flow device of claim 1, comprising at least one marking providing a visual indication of the amount of sample collected.

5. The fast flow device of claim 3 which further comprises a second marking wherein the markings providing a visual indication of the amount of sample collected comprise a first marking indicating a minimum amount of sample sufficient for performing the test reaction;

and a second marking indicating a maximum amount of sample for performing the test reaction.

6. The fast flow device of claim 2, wherein the run fluid container contains a diluent.

7. The fast flow device of claim 1, wherein the run fluid container contains a reagent.

8. The fast flow device of claim 2, wherein the vented flexible collar comprises a color code providing a visual indication of the analyte used in the specific test and the reaction to be performed.

9. The fast flow device of claim 2, wherein at least one of the run fluid container and the test strip comprises a color providing a visual indication of the analyte used in the specific test and the reaction to be performed.

10. The fast flow device of claim 1, further comprising:

a second sample pad for collecting a second sample; and

a second test strip coupled to the second sample pad, the second test strip comprising a second indicator region configured to provide a visual indication of a second test reaction with the second sample;

wherein the second test strip is disposed within the housing, the housing allowing visualization of the second test strip, and wherein at least a portion of the second sample pad extends beyond the second end of the housing.

11. The device of claim 10, further comprising first and second run fluid container configured to be positioned over the portions of the first and second sample pad that extend beyond the first and second ends of the housing.

12. The device of claim 10, further comprising a fluid-impermeable element that separates the first and second sample pads.